src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include <unistd.h>
  45 #include <sched.h>
  46 #include "connection.h"
  47 #include "users.h"
  48 #include "servers.h"
  49 #include "ctables.h"
  50 #include "globals.h"
  51 #include "modules.h"
  52 #include "dynamic.h"
  53 #include "wildcard.h"
  54
  55 #ifdef GCC3
  56 #define nspace __gnu_cxx
  57 #else
  58 #define nspace std
  59 #endif
  60
  61 int LogLevel = DEFAULT;
  62 char ServerName[MAXBUF];
  63 char Network[MAXBUF];
  64 char ServerDesc[MAXBUF];
  65 char AdminName[MAXBUF];
  66 char AdminEmail[MAXBUF];
  67 char AdminNick[MAXBUF];
  68 char diepass[MAXBUF];
  69 char restartpass[MAXBUF];
  70 char motd[MAXBUF];
  71 char rules[MAXBUF];
  72 char list[MAXBUF];
  73 char PrefixQuit[MAXBUF];
  74 char DieValue[MAXBUF];
  75 int debugging =  0;
  76 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  77 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  78 int DieDelay  =  5;
  79 time_t startup_time = time(NULL);
  80 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  81 time_t nb_start = 0;
  82
  83 extern vector<Module*> modules;
  84 std::vector<std::string> module_names;
  85 extern vector<ircd_module*> factory;
  86 std::vector<int> fd_reap;
  87
  88 extern int MODCOUNT;
  89
  90 bool nofork = false;
  91
  92 namespace nspace
  93 {
  94         template<> struct nspace::hash<in_addr>
  95         {
  96                 size_t operator()(const struct in_addr &a) const
  97                 {
  98                         size_t q;
  99                         memcpy(&q,&a,sizeof(size_t));
 100                         return q;
 101                 }
 102         };
 103
 104         template<> struct nspace::hash<string>
 105         {
 106                 size_t operator()(const string &s) const
 107                 {
 108                         char a[MAXBUF];
 109                         static struct hash<const char *> strhash;
 110                         strcpy(a,s.c_str());
 111                         strlower(a);
 112                         return strhash(a);
 113                 }
 114         };
 115 }
 116
 117
 118 struct StrHashComp
 119 {
 120
 121         bool operator()(const string& s1, const string& s2) const
 122         {
 123                 char a[MAXBUF],b[MAXBUF];
 124                 strcpy(a,s1.c_str());
 125                 strcpy(b,s2.c_str());
 126                 return (strcasecmp(a,b) == 0);
 127         }
 128
 129 };
 130
 131 struct InAddr_HashComp
 132 {
 133
 134         bool operator()(const in_addr &s1, const in_addr &s2) const
 135         {
 136                 size_t q;
 137                 size_t p;
 138
 139                 memcpy(&q,&s1,sizeof(size_t));
 140                 memcpy(&p,&s2,sizeof(size_t));
 141
 142                 return (q == p);
 143         }
 144
 145 };
 146
 147
 148 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 149 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 150 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 151 typedef std::deque<command_t> command_table;
 152
 153 serverrec* me[32];
 154
 155 FILE *log_file;
 156
 157 user_hash clientlist;
 158 chan_hash chanlist;
 159 user_hash whowas;
 160 command_table cmdlist;
 161 file_cache MOTD;
 162 file_cache RULES;
 163 address_cache IP;
 164
 165 ClassVector Classes;
 166
 167 struct linger linger = { 0 };
 168 char bannerBuffer[MAXBUF];
 169 int boundPortCount = 0;
 170 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 171 int defaultRoute = 0;
 172
 173 connection C;
 174
 175 long MyKey = C.GenKey();
 176
 177 /* prototypes */
 178
 179 int has_channel(userrec *u, chanrec *c);
 180 int usercount(chanrec *c);
 181 int usercount_i(chanrec *c);
 182 void update_stats_l(int fd,int data_out);
 183 char* Passwd(userrec *user);
 184 bool IsDenied(userrec *user);
 185 void AddWhoWas(userrec* u);
 186
 187 std::vector<long> auth_cookies;
 188 std::stringstream config_f(stringstream::in | stringstream::out);
 189
 190 void safedelete(userrec *p)
 191 {
 192         if (p)
 193         {
 194                 log(DEBUG,"deleting %s %s %s %s",p->nick,p->ident,p->dhost,p->fullname);
 195                 log(DEBUG,"safedelete(userrec*): pointer is safe to delete");
 196                 delete p;
 197                 p = NULL;
 198         }
 199         else
 200         {
 201                 log(DEBUG,"safedelete(userrec*): unsafe pointer operation squished");
 202         }
 203 }
 204
 205 void safedelete(chanrec *p)
 206 {
 207         if (p)
 208         {
 209                 delete p;
 210                 p = NULL;
 211                 log(DEBUG,"safedelete(chanrec*): pointer is safe to delete");
 212         }
 213         else
 214         {
 215                 log(DEBUG,"safedelete(chanrec*): unsafe pointer operation squished");
 216         }
 217 }
 218
 219
 220 void tidystring(char* str)
 221 {
 222         // strips out double spaces before a : parameter
 223
 224         char temp[MAXBUF];
 225         bool go_again = true;
 226
 227         if (!str)
 228         {
 229                 return;
 230         }
 231
 232         while ((str[0] == ' ') && (strlen(str)>0))
 233         {
 234                 str++;
 235         }
 236
 237         while (go_again)
 238         {
 239                 bool noparse = false;
 240                 int t = 0, a = 0;
 241                 go_again = false;
 242                 while (a < strlen(str))
 243                 {
 244                         if ((a<strlen(str)-1) && (noparse==false))
 245                         {
 246                                 if ((str[a] == ' ') && (str[a+1] == ' '))
 247                                 {
 248                                         log(DEBUG,"Tidied extra space out of string: %s",str);
 249                                         go_again = true;
 250                                         a++;
 251                                 }
 252                         }
 253
 254                         if (a<strlen(str)-1)
 255                         {
 256                                 if ((str[a] == ' ') && (str[a+1] == ':'))
 257                                 {
 258                                         noparse = true;
 259                                 }
 260                         }
 261
 262                         temp[t++] = str[a++];
 263                 }
 264                 temp[t] = '\0';
 265                 strncpy(str,temp,MAXBUF);
 266         }
 267 }
 268
 269 /* chop a string down to 512 characters and preserve linefeed (irc max
 270  * line length) */
 271
 272 void chop(char* str)
 273 {
 274   if (!str)
 275   {
 276         log(DEBUG,"ERROR! Null string passed to chop()!");
 277         return;
 278   }
 279   string temp = str;
 280   FOREACH_MOD OnServerRaw(temp,false);
 281   const char* str2 = temp.c_str();
 282   sprintf(str,"%s",str2);
 283
 284
 285   if (strlen(str) >= 512)
 286   {
 287         str[509] = '\r';
 288         str[510] = '\n';
 289         str[511] = '\0';
 290   }
 291 }
 292
 293
 294 std::string getservername()
 295 {
 296         return ServerName;
 297 }
 298
 299 std::string getserverdesc()
 300 {
 301         return ServerDesc;
 302 }
 303
 304 std::string getnetworkname()
 305 {
 306         return Network;
 307 }
 308
 309 std::string getadminname()
 310 {
 311         return AdminName;
 312 }
 313
 314 std::string getadminemail()
 315 {
 316         return AdminEmail;
 317 }
 318
 319 std::string getadminnick()
 320 {
 321         return AdminNick;
 322 }
 323
 324 void log(int level,char *text, ...)
 325 {
 326         char textbuffer[MAXBUF];
 327         va_list argsPtr;
 328         time_t rawtime;
 329         struct tm * timeinfo;
 330         if (level < LogLevel)
 331                 return;
 332
 333         time(&rawtime);
 334         timeinfo = localtime (&rawtime);
 335
 336         if (log_file)
 337         {
 338                 char b[MAXBUF];
 339                 va_start (argsPtr, text);
 340                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 341                 va_end(argsPtr);
 342                 strcpy(b,asctime(timeinfo));
 343                 b[strlen(b)-1] = ':';
 344                 fprintf(log_file,"%s %s\n",b,textbuffer);
 345                 if (nofork)
 346                 {
 347                         // nofork enabled? display it on terminal too
 348                         printf("%s %s\n",b,textbuffer);
 349                 }
 350         }
 351 }
 352
 353 void readfile(file_cache &F, const char* fname)
 354 {
 355   FILE* file;
 356   char linebuf[MAXBUF];
 357
 358   log(DEBUG,"readfile: loading %s",fname);
 359   F.clear();
 360   file =  fopen(fname,"r");
 361   if (file)
 362   {
 363         while (!feof(file))
 364         {
 365                 fgets(linebuf,sizeof(linebuf),file);
 366                 linebuf[strlen(linebuf)-1]='\0';
 367                 if (!strcmp(linebuf,""))
 368                 {
 369                         strcpy(linebuf,"  ");
 370                 }
 371                 if (!feof(file))
 372                 {
 373                         F.push_back(linebuf);
 374                 }
 375         }
 376         fclose(file);
 377   }
 378   else
 379   {
 380           log(DEBUG,"readfile: failed to load file: %s",fname);
 381   }
 382   log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 383 }
 384
 385 void ReadConfig(void)
 386 {
 387   char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF];
 388   ConnectClass c;
 389
 390   LoadConf(CONFIG_FILE,&config_f);
 391
 392   ConfValue("server","name",0,ServerName,&config_f);
 393   ConfValue("server","description",0,ServerDesc,&config_f);
 394   ConfValue("server","network",0,Network,&config_f);
 395   ConfValue("admin","name",0,AdminName,&config_f);
 396   ConfValue("admin","email",0,AdminEmail,&config_f);
 397   ConfValue("admin","nick",0,AdminNick,&config_f);
 398   ConfValue("files","motd",0,motd,&config_f);
 399   ConfValue("files","rules",0,rules,&config_f);
 400   ConfValue("power","diepass",0,diepass,&config_f);
 401   ConfValue("power","pause",0,pauseval,&config_f);
 402   ConfValue("power","restartpass",0,restartpass,&config_f);
 403   ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 404   ConfValue("die","value",0,DieValue,&config_f);
 405   ConfValue("options","loglevel",0,dbg,&config_f);
 406   ConfValue("options","netbuffersize",0,NB,&config_f);
 407   NetBufferSize = atoi(NB);
 408   if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 409   {
 410         log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 411         NetBufferSize = 10240;
 412   }
 413   if (!strcmp(dbg,"debug"))
 414         LogLevel = DEBUG;
 415   if (!strcmp(dbg,"verbose"))
 416         LogLevel = VERBOSE;
 417   if (!strcmp(dbg,"default"))
 418         LogLevel = DEFAULT;
 419   if (!strcmp(dbg,"sparse"))
 420         LogLevel = SPARSE;
 421   if (!strcmp(dbg,"none"))
 422         LogLevel = NONE;
 423   readfile(MOTD,motd);
 424   log(DEBUG,"Reading message of the day");
 425   readfile(RULES,rules);
 426   log(DEBUG,"Reading connect classes");
 427   Classes.clear();
 428   for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 429   {
 430         strcpy(Value,"");
 431         ConfValue("connect","allow",i,Value,&config_f);
 432         ConfValue("connect","timeout",i,timeout,&config_f);
 433         ConfValue("connect","flood",i,flood,&config_f);
 434         if (strcmp(Value,""))
 435         {
 436                 strcpy(c.host,Value);
 437                 c.type = CC_ALLOW;
 438                 strcpy(Value,"");
 439                 ConfValue("connect","password",i,Value,&config_f);
 440                 strcpy(c.pass,Value);
 441                 c.registration_timeout = 90; // default is 2 minutes
 442                 c.flood = atoi(flood);
 443                 if (atoi(timeout)>0)
 444                 {
 445                         c.registration_timeout = atoi(timeout);
 446                 }
 447                 Classes.push_back(c);
 448                 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 449         }
 450         else
 451         {
 452                 ConfValue("connect","deny",i,Value,&config_f);
 453                 strcpy(c.host,Value);
 454                 c.type = CC_DENY;
 455                 Classes.push_back(c);
 456                 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 457         }
 458
 459   }
 460 }
 461
 462 void Blocking(int s)
 463 {
 464   int flags;
 465   log(DEBUG,"Blocking: %d",s);
 466   flags = fcntl(s, F_GETFL, 0);
 467   fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
 468 }
 469
 470 void NonBlocking(int s)
 471 {
 472   int flags;
 473   log(DEBUG,"NonBlocking: %d",s);
 474   flags = fcntl(s, F_GETFL, 0);
 475   //fcntl(s, F_SETFL, O_NONBLOCK);
 476   fcntl(s, F_SETFL, flags | O_NONBLOCK);
 477 }
 478
 479
 480 int CleanAndResolve (char *resolvedHost, const char *unresolvedHost)
 481 {
 482   struct hostent *hostPtr = NULL;
 483   struct in_addr addr;
 484
 485   memset (resolvedHost, '\0',MAXBUF);
 486   if(unresolvedHost == NULL)
 487         return(ERROR);
 488   if ((inet_aton(unresolvedHost,&addr)) == 0)
 489         return(ERROR);
 490   hostPtr = gethostbyaddr ((char *)&addr.s_addr,sizeof(addr.s_addr),AF_INET);
 491   if (hostPtr != NULL)
 492         snprintf(resolvedHost,MAXBUF,"%s",hostPtr->h_name);
 493   else
 494         snprintf(resolvedHost,MAXBUF,"%s",unresolvedHost);
 495   return (TRUE);
 496 }
 497
 498 /* write formatted text to a socket, in same format as printf */
 499
 500 void Write(int sock,char *text, ...)
 501 {
 502   if (!text)
 503   {
 504         log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 505         return;
 506   }
 507   char textbuffer[MAXBUF];
 508   va_list argsPtr;
 509   char tb[MAXBUF];
 510
 511   va_start (argsPtr, text);
 512   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 513   va_end(argsPtr);
 514   sprintf(tb,"%s\r\n",textbuffer);
 515   chop(tb);
 516   if (sock != -1)
 517   {
 518         write(sock,tb,strlen(tb));
 519         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 520   }
 521 }
 522
 523 /* write a server formatted numeric response to a single socket */
 524
 525 void WriteServ(int sock, char* text, ...)
 526 {
 527   if (!text)
 528   {
 529         log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 530         return;
 531   }
 532   char textbuffer[MAXBUF],tb[MAXBUF];
 533   va_list argsPtr;
 534   va_start (argsPtr, text);
 535
 536   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 537   va_end(argsPtr);
 538   sprintf(tb,":%s %s\r\n",ServerName,textbuffer);
 539   chop(tb);
 540   if (sock != -1)
 541   {
 542         write(sock,tb,strlen(tb));
 543         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 544   }
 545 }
 546
 547 /* write text from an originating user to originating user */
 548
 549 void WriteFrom(int sock, userrec *user,char* text, ...)
 550 {
 551   if ((!text) || (!user))
 552   {
 553         log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 554         return;
 555   }
 556   char textbuffer[MAXBUF],tb[MAXBUF];
 557   va_list argsPtr;
 558   va_start (argsPtr, text);
 559
 560   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 561   va_end(argsPtr);
 562   sprintf(tb,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 563   chop(tb);
 564   if (sock != -1)
 565   {
 566         write(sock,tb,strlen(tb));
 567         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 568   }
 569 }
 570
 571 /* write text to an destination user from a source user (e.g. user privmsg) */
 572
 573 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 574 {
 575         if ((!dest) || (!data))
 576         {
 577                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 578                 return;
 579         }
 580         char textbuffer[MAXBUF],tb[MAXBUF];
 581         va_list argsPtr;
 582         va_start (argsPtr, data);
 583         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 584         va_end(argsPtr);
 585         chop(tb);
 586
 587         // if no source given send it from the server.
 588         if (!source)
 589         {
 590                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 591         }
 592         else
 593         {
 594                 WriteFrom(dest->fd,source,"%s",textbuffer);
 595         }
 596 }
 597
 598 /* write formatted text from a source user to all users on a channel
 599  * including the sender (NOT for privmsg, notice etc!) */
 600
 601 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 602 {
 603         if ((!Ptr) || (!user) || (!text))
 604         {
 605                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 606                 return;
 607         }
 608         char textbuffer[MAXBUF];
 609         va_list argsPtr;
 610         va_start (argsPtr, text);
 611         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 612         va_end(argsPtr);
 613         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 614         {
 615                 if (has_channel(i->second,Ptr))
 616                 {
 617                         WriteTo(user,i->second,"%s",textbuffer);
 618                 }
 619         }
 620 }
 621
 622 /* write formatted text from a source user to all users on a channel
 623  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 624  * users on remote servers */
 625
 626 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 627 {
 628         if ((!Ptr) || (!text))
 629         {
 630                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 631                 return;
 632         }
 633         char textbuffer[MAXBUF];
 634         va_list argsPtr;
 635         va_start (argsPtr, text);
 636         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 637         va_end(argsPtr);
 638         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 639         {
 640                 if (has_channel(i->second,Ptr))
 641                 {
 642                         if (i->second->fd != -1)
 643                         {
 644                                 if (!user)
 645                                 {
 646                                         WriteServ(i->second->fd,"%s",textbuffer);
 647                                 }
 648                                 else
 649                                 {
 650                                         WriteTo(user,i->second,"%s",textbuffer);
 651                                 }
 652                         }
 653                 }
 654         }
 655 }
 656
 657
 658 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 659 {
 660         if ((!Ptr) || (!user) || (!text))
 661         {
 662                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 663                 return;
 664         }
 665         char textbuffer[MAXBUF];
 666         va_list argsPtr;
 667         va_start (argsPtr, text);
 668         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 669         va_end(argsPtr);
 670         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 671         {
 672                 if (i->second)
 673                 {
 674                         if (has_channel(i->second,Ptr))
 675                         {
 676                                 WriteServ(i->second->fd,"%s",textbuffer);
 677                         }
 678                 }
 679         }
 680 }
 681
 682
 683 /* write formatted text from a source user to all users on a channel except
 684  * for the sender (for privmsg etc) */
 685
 686 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 687 {
 688         if ((!Ptr) || (!user) || (!text))
 689         {
 690                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 691                 return;
 692         }
 693         char textbuffer[MAXBUF];
 694         va_list argsPtr;
 695         va_start (argsPtr, text);
 696         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 697         va_end(argsPtr);
 698
 699         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 700         {
 701                 if (i->second)
 702                 {
 703                         if (has_channel(i->second,Ptr) && (user != i->second))
 704                         {
 705                                 WriteTo(user,i->second,"%s",textbuffer);
 706                         }
 707                 }
 708         }
 709 }
 710
 711 int c_count(userrec* u)
 712 {
 713         int z = 0;
 714         for (int i =0; i != MAXCHANS; i++)
 715                 if (u->chans[i].channel != NULL)
 716                         z++;
 717         return z;
 718
 719 }
 720
 721 /* return 0 or 1 depending if users u and u2 share one or more common channels
 722  * (used by QUIT, NICK etc which arent channel specific notices) */
 723
 724 int common_channels(userrec *u, userrec *u2)
 725 {
 726         int i = 0;
 727         int z = 0;
 728
 729         if ((!u) || (!u2))
 730         {
 731                 log(DEFAULT,"*** BUG *** common_channels was given an invalid parameter");
 732                 return 0;
 733         }
 734         for (int i = 0; i != MAXCHANS; i++)
 735         {
 736                 for (z = 0; z != MAXCHANS; z++)
 737                 {
 738                         if ((u->chans[i].channel != NULL) && (u2->chans[z].channel != NULL))
 739                         {
 740                                 if ((u->chans[i].channel == u2->chans[z].channel) && (u->chans[i].channel) && (u2->chans[z].channel) && (u->registered == 7) && (u2->registered == 7))
 741                                 {
 742                                         if ((c_count(u)) && (c_count(u2)))
 743                                         {
 744                                                 return 1;
 745                                         }
 746                                 }
 747                         }
 748                 }
 749         }
 750         return 0;
 751 }
 752
 753 /* write a formatted string to all users who share at least one common
 754  * channel, including the source user e.g. for use in NICK */
 755
 756 void WriteCommon(userrec *u, char* text, ...)
 757 {
 758         if (!u)
 759         {
 760                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 761                 return;
 762         }
 763
 764         if (u->registered != 7) {
 765                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 766                 return;
 767         }
 768
 769         char textbuffer[MAXBUF];
 770         va_list argsPtr;
 771         va_start (argsPtr, text);
 772         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 773         va_end(argsPtr);
 774
 775         WriteFrom(u->fd,u,"%s",textbuffer);
 776
 777         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 778         {
 779                 if (i->second)
 780                 {
 781                         if (common_channels(u,i->second) && (i->second != u))
 782                         {
 783                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 784                         }
 785                 }
 786         }
 787 }
 788
 789 /* write a formatted string to all users who share at least one common
 790  * channel, NOT including the source user e.g. for use in QUIT */
 791
 792 void WriteCommonExcept(userrec *u, char* text, ...)
 793 {
 794         if (!u)
 795         {
 796                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 797                 return;
 798         }
 799
 800         if (u->registered != 7) {
 801                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 802                 return;
 803         }
 804
 805         char textbuffer[MAXBUF];
 806         va_list argsPtr;
 807         va_start (argsPtr, text);
 808         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 809         va_end(argsPtr);
 810
 811         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 812         {
 813                 if (i->second)
 814                 {
 815                         if ((common_channels(u,i->second)) && (u != i->second))
 816                         {
 817                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 818                         }
 819                 }
 820         }
 821 }
 822
 823 void WriteOpers(char* text, ...)
 824 {
 825         if (!text)
 826         {
 827                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 828                 return;
 829         }
 830
 831         char textbuffer[MAXBUF];
 832         va_list argsPtr;
 833         va_start (argsPtr, text);
 834         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 835         va_end(argsPtr);
 836
 837         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 838         {
 839                 if (i->second)
 840                 {
 841                         if (strchr(i->second->modes,'o'))
 842                         {
 843                                 if (strchr(i->second->modes,'s'))
 844                                 {
 845                                         // send server notices to all with +s
 846                                         // (TODO: needs SNOMASKs)
 847                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 848                                 }
 849                         }
 850                 }
 851         }
 852 }
 853
 854 // returns TRUE of any users on channel C occupy server 'servername'.
 855
 856 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 857 {
 858         log(DEBUG,"ChanAnyOnThisServer");
 859         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 860         {
 861                 if (has_channel(i->second,c))
 862                 {
 863                         if (!strcasecmp(i->second->server,servername))
 864                         {
 865                                 return true;
 866                         }
 867                 }
 868         }
 869         return false;
 870 }
 871
 872 // returns true if user 'u' shares any common channels with any users on server 'servername'
 873
 874 bool CommonOnThisServer(userrec* u,const char* servername)
 875 {
 876         log(DEBUG,"ChanAnyOnThisServer");
 877         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 878         {
 879                 if ((common_channels(u,i->second)) && (u != i->second))
 880                 {
 881                         if (!strcasecmp(i->second->server,servername))
 882                         {
 883                                 log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 884                                 return true;
 885                         }
 886                 }
 887         }
 888         return false;
 889 }
 890
 891
 892 void NetSendToCommon(userrec* u, char* s)
 893 {
 894         char buffer[MAXBUF];
 895         snprintf(buffer,MAXBUF,"%s",s);
 896
 897         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
 898
 899         for (int j = 0; j < 32; j++)
 900         {
 901                 if (me[j] != NULL)
 902                 {
 903                         for (int k = 0; k < me[j]->connectors.size(); k++)
 904                         {
 905                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 906                                 {
 907                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 908                                 }
 909                         }
 910                 }
 911         }
 912 }
 913
 914
 915 void NetSendToAll(char* s)
 916 {
 917         char buffer[MAXBUF];
 918         snprintf(buffer,MAXBUF,"%s",s);
 919
 920         log(DEBUG,"NetSendToAll: '%s'",s);
 921
 922         for (int j = 0; j < 32; j++)
 923         {
 924                 if (me[j] != NULL)
 925                 {
 926                         for (int k = 0; k < me[j]->connectors.size(); k++)
 927                         {
 928                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 929                         }
 930                 }
 931         }
 932 }
 933
 934 void NetSendToAllAlive(char* s)
 935 {
 936         char buffer[MAXBUF];
 937         snprintf(buffer,MAXBUF,"%s",s);
 938
 939         log(DEBUG,"NetSendToAllAlive: '%s'",s);
 940
 941         for (int j = 0; j < 32; j++)
 942         {
 943                 if (me[j] != NULL)
 944                 {
 945                         for (int k = 0; k < me[j]->connectors.size(); k++)
 946                         {
 947                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
 948                                 {
 949                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 950                                 }
 951                                 else
 952                                 {
 953                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
 954                                 }
 955                         }
 956                 }
 957         }
 958 }
 959
 960
 961 void NetSendToOne(char* target,char* s)
 962 {
 963         char buffer[MAXBUF];
 964         snprintf(buffer,MAXBUF,"%s",s);
 965
 966         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
 967
 968         for (int j = 0; j < 32; j++)
 969         {
 970                 if (me[j] != NULL)
 971                 {
 972                         for (int k = 0; k < me[j]->connectors.size(); k++)
 973                         {
 974                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 975                                 {
 976                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 977                                 }
 978                         }
 979                 }
 980         }
 981 }
 982
 983 void NetSendToAllExcept(const char* target,char* s)
 984 {
 985         char buffer[MAXBUF];
 986         snprintf(buffer,MAXBUF,"%s",s);
 987
 988         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
 989
 990         for (int j = 0; j < 32; j++)
 991         {
 992                 if (me[j] != NULL)
 993                 {
 994                         for (int k = 0; k < me[j]->connectors.size(); k++)
 995                         {
 996                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 997                                 {
 998                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 999                                 }
1000                         }
1001                 }
1002         }
1003 }
1004
1005
1006 bool hasumode(userrec* user, char mode)
1007 {
1008         if (user)
1009         {
1010                 return (strchr(user->modes,mode)>0);
1011         }
1012         else return false;
1013 }
1014
1015 void WriteMode(const char* modes, int flags, const char* text, ...)
1016 {
1017         if ((!text) || (!modes) || (!flags))
1018         {
1019                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1020                 return;
1021         }
1022
1023         char textbuffer[MAXBUF];
1024         va_list argsPtr;
1025         va_start (argsPtr, text);
1026         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1027         va_end(argsPtr);
1028
1029         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1030         {
1031                 if (i->second)
1032                 {
1033                         bool send_to_user = false;
1034
1035                         if (flags == WM_AND)
1036                         {
1037                                 send_to_user = true;
1038                                 for (int n = 0; n < strlen(modes); n++)
1039                                 {
1040                                         if (!hasumode(i->second,modes[n]))
1041                                         {
1042                                                 send_to_user = false;
1043                                                 break;
1044                                         }
1045                                 }
1046                         }
1047                         else if (flags == WM_OR)
1048                         {
1049                                 send_to_user = false;
1050                                 for (int n = 0; n < strlen(modes); n++)
1051                                 {
1052                                         if (hasumode(i->second,modes[n]))
1053                                         {
1054                                                 send_to_user = true;
1055                                                 break;
1056                                         }
1057                                 }
1058                         }
1059
1060                         if (send_to_user)
1061                         {
1062                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1063                         }
1064                 }
1065         }
1066 }
1067
1068 void ChangeName(userrec* user, const char* gecos)
1069 {
1070         strncpy(user->fullname,gecos,MAXBUF);
1071
1072         // TODO: replace these with functions:
1073         // NetSendToAll - to all
1074         // NetSendToCommon - to all that hold users sharing a common channel with another user
1075         // NetSendToOne - to one server
1076         // NetSendToAllExcept - send to all but one
1077         // all by servername
1078
1079         char buffer[MAXBUF];
1080         snprintf(buffer,MAXBUF,"a %s :%s",user->nick,gecos);
1081         NetSendToAll(buffer);
1082 }
1083
1084 void ChangeDisplayedHost(userrec* user, const char* host)
1085 {
1086         strncpy(user->dhost,host,160);
1087         char buffer[MAXBUF];
1088         snprintf(buffer,MAXBUF,"b %s :%s",user->nick,host);
1089         NetSendToAll(buffer);
1090 }
1091
1092 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1093 {
1094         if ((!text) || (!source))
1095         {
1096                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1097                 return;
1098         }
1099
1100         int i = 0;
1101         char textbuffer[MAXBUF];
1102         va_list argsPtr;
1103         va_start (argsPtr, text);
1104         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1105         va_end(argsPtr);
1106
1107         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1108         {
1109                 if (i->second)
1110                 {
1111                         if (strchr(i->second->modes,'w'))
1112                         {
1113                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
1114                         }
1115                 }
1116         }
1117
1118         if (!local_only)
1119         {
1120                 char buffer[MAXBUF];
1121                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1122                 NetSendToAll(buffer);
1123         }
1124 }
1125
1126 /* convert a string to lowercase. Note following special circumstances
1127  * taken from RFC 1459. Many "official" server branches still hold to this
1128  * rule so i will too;
1129  *
1130  *  Because of IRC's scandanavian origin, the characters {}| are
1131  *  considered to be the lower case equivalents of the characters []\,
1132  *  respectively. This is a critical issue when determining the
1133  *  equivalence of two nicknames.
1134  */
1135
1136 void strlower(char *n)
1137 {
1138         if (!n)
1139         {
1140                 return;
1141         }
1142         for (int i = 0; i != strlen(n); i++)
1143         {
1144                 n[i] = tolower(n[i]);
1145                 if (n[i] == '[')
1146                         n[i] = '{';
1147                 if (n[i] == ']')
1148                         n[i] = '}';
1149                 if (n[i] == '\\')
1150                         n[i] = '|';
1151         }
1152 }
1153
1154 /* verify that a user's ident and nickname is valid */
1155
1156 int isident(const char* n)
1157 {
1158         char v[MAXBUF];
1159         if (!n)
1160
1161         {
1162                 return 0;
1163         }
1164         if (!strcmp(n,""))
1165         {
1166                 return 0;
1167         }
1168         for (int i = 0; i != strlen(n); i++)
1169         {
1170                 if ((n[i] < 33) || (n[i] > 125))
1171                 {
1172                         return 0;
1173                 }
1174                 /* can't occur ANYWHERE in an Ident! */
1175                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1176                 {
1177                         return 0;
1178                 }
1179         }
1180         return 1;
1181 }
1182
1183
1184 int isnick(const char* n)
1185 {
1186         int i = 0;
1187         char v[MAXBUF];
1188         if (!n)
1189         {
1190                 return 0;
1191         }
1192         if (!strcmp(n,""))
1193         {
1194                 return 0;
1195         }
1196         if (strlen(n) > NICKMAX-1)
1197         {
1198                 return 0;
1199         }
1200         for (int i = 0; i != strlen(n); i++)
1201         {
1202                 if ((n[i] < 33) || (n[i] > 125))
1203                 {
1204                         return 0;
1205                 }
1206                 /* can't occur ANYWHERE in a nickname! */
1207                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1208                 {
1209                         return 0;
1210                 }
1211                 /* can't occur as the first char of a nickname... */
1212                 if ((strchr("0123456789",n[i])) && (!i))
1213                 {
1214                         return 0;
1215                 }
1216         }
1217         return 1;
1218 }
1219
1220 /* Find a user record by nickname and return a pointer to it */
1221
1222 userrec* Find(string nick)
1223 {
1224         user_hash::iterator iter = clientlist.find(nick);
1225
1226         if (iter == clientlist.end())
1227                 /* Couldn't find it */
1228                 return NULL;
1229
1230         return iter->second;
1231 }
1232
1233 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
1234 {
1235         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1236         {
1237                 if (i->second)
1238                 {
1239                         if (i->second->fd == fd)
1240                         {
1241                                 i->second->bytes_out+=data_out;
1242                                 i->second->cmds_out++;
1243                         }
1244                 }
1245         }
1246 }
1247
1248
1249 /* find a channel record by channel name and return a pointer to it */
1250
1251 chanrec* FindChan(const char* chan)
1252 {
1253         if (!chan)
1254         {
1255                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1256                 return NULL;
1257         }
1258
1259         chan_hash::iterator iter = chanlist.find(chan);
1260
1261         if (iter == chanlist.end())
1262                 /* Couldn't find it */
1263                 return NULL;
1264
1265         return iter->second;
1266 }
1267
1268
1269 void purge_empty_chans(void)
1270 {
1271         int go_again = 1, purge = 0;
1272
1273         while (go_again)
1274         {
1275                 go_again = 0;
1276                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1277                 {
1278                         if (i->second) {
1279                                 if (!usercount(i->second))
1280                                 {
1281                                         /* kill the record */
1282                                         if (i != chanlist.end())
1283                                         {
1284                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1285                                                 delete i->second;
1286                                                 chanlist.erase(i);
1287                                                 go_again = 1;
1288                                                 purge++;
1289                                                 break;
1290                                         }
1291                                 }
1292                                 else
1293                                 {
1294                                         log(DEBUG,"skipped purge for %s",i->second->name);
1295                                 }
1296                         }
1297                 }
1298         }
1299         log(DEBUG,"completed channel purge, killed %d",purge);
1300 }
1301
1302 /* returns the status character for a given user on a channel, e.g. @ for op,
1303  * % for halfop etc. If the user has several modes set, the highest mode
1304  * the user has must be returned. */
1305
1306 char* cmode(userrec *user, chanrec *chan)
1307 {
1308         if ((!user) || (!chan))
1309         {
1310                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1311                 return "";
1312         }
1313
1314         int i;
1315         for (int i = 0; i != MAXCHANS; i++)
1316         {
1317                 if ((user->chans[i].channel == chan) && (chan != NULL))
1318                 {
1319                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1320                         {
1321                                 return "@";
1322                         }
1323                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1324                         {
1325                                 return "%";
1326                         }
1327                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1328                         {
1329                                 return "+";
1330                         }
1331                         return "";
1332                 }
1333         }
1334 }
1335
1336 char scratch[MAXBUF];
1337 char sparam[MAXBUF];
1338
1339 char* chanmodes(chanrec *chan)
1340 {
1341         if (!chan)
1342         {
1343                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1344                 strcpy(scratch,"");
1345                 return scratch;
1346         }
1347
1348         strcpy(scratch,"");
1349         strcpy(sparam,"");
1350         if (chan->noexternal)
1351         {
1352                 strncat(scratch,"n",MAXMODES);
1353         }
1354         if (chan->topiclock)
1355         {
1356                 strncat(scratch,"t",MAXMODES);
1357         }
1358         if (strcmp(chan->key,""))
1359         {
1360                 strncat(scratch,"k",MAXMODES);
1361         }
1362         if (chan->limit)
1363         {
1364                 strncat(scratch,"l",MAXMODES);
1365         }
1366         if (chan->inviteonly)
1367         {
1368                 strncat(scratch,"i",MAXMODES);
1369         }
1370         if (chan->moderated)
1371         {
1372                 strncat(scratch,"m",MAXMODES);
1373         }
1374         if (chan->secret)
1375         {
1376                 strncat(scratch,"s",MAXMODES);
1377         }
1378         if (chan->c_private)
1379         {
1380                 strncat(scratch,"p",MAXMODES);
1381         }
1382         if (strcmp(chan->key,""))
1383         {
1384                 strncat(sparam,chan->key,MAXBUF);
1385         }
1386         if (chan->limit)
1387         {
1388                 char foo[24];
1389                 sprintf(foo," %d",chan->limit);
1390                 strncat(sparam,foo,MAXBUF);
1391         }
1392         if (strlen(chan->custom_modes))
1393         {
1394                 strncat(scratch,chan->custom_modes,MAXMODES);
1395                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1396                 {
1397                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1398                         if (extparam != "")
1399                         {
1400                                 strncat(sparam," ",MAXBUF);
1401                                 strncat(sparam,extparam.c_str(),MAXBUF);
1402                         }
1403                 }
1404         }
1405         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1406         strncat(scratch,sparam,MAXMODES);
1407         return scratch;
1408 }
1409
1410 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1411  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1412  * highest mode the user has must be returned. */
1413
1414 int cstatus(userrec *user, chanrec *chan)
1415 {
1416         if ((!chan) || (!user))
1417         {
1418                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1419                 return 0;
1420         }
1421
1422         for (int i = 0; i != MAXCHANS; i++)
1423         {
1424                 if ((user->chans[i].channel == chan) && (chan != NULL))
1425                 {
1426                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1427                         {
1428                                 return STATUS_OP;
1429                         }
1430                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1431                         {
1432                                 return STATUS_HOP;
1433                         }
1434                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1435                         {
1436                                 return STATUS_VOICE;
1437                         }
1438                         return STATUS_NORMAL;
1439                 }
1440         }
1441 }
1442
1443
1444 /* compile a userlist of a channel into a string, each nick seperated by
1445  * spaces and op, voice etc status shown as @ and + */
1446
1447 void userlist(userrec *user,chanrec *c)
1448 {
1449         if ((!c) || (!user))
1450         {
1451                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1452                 return;
1453         }
1454
1455         sprintf(list,"353 %s = %s :", user->nick, c->name);
1456         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1457         {
1458                 if (has_channel(i->second,c))
1459                 {
1460                         if (isnick(i->second->nick))
1461                         {
1462                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1463                                 {
1464                                         /* user is +i, and source not on the channel, does not show
1465                                          * nick in NAMES list */
1466                                         continue;
1467                                 }
1468                                 strcat(list,cmode(i->second,c));
1469                                 strcat(list,i->second->nick);
1470                                 strcat(list," ");
1471                                 if (strlen(list)>(480-NICKMAX))
1472                                 {
1473                                         /* list overflowed into
1474                                          * multiple numerics */
1475                                         WriteServ(user->fd,list);
1476                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1477                                 }
1478                         }
1479                 }
1480         }
1481         /* if whats left in the list isnt empty, send it */
1482         if (list[strlen(list)-1] != ':')
1483         {
1484                 WriteServ(user->fd,list);
1485         }
1486 }
1487
1488 /* return a count of the users on a specific channel accounting for
1489  * invisible users who won't increase the count. e.g. for /LIST */
1490
1491 int usercount_i(chanrec *c)
1492 {
1493         int i = 0;
1494         int count = 0;
1495
1496         if (!c)
1497         {
1498                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1499                 return 0;
1500         }
1501
1502         strcpy(list,"");
1503         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1504         {
1505                 if (i->second)
1506                 {
1507                         if (has_channel(i->second,c))
1508                         {
1509                                 if (isnick(i->second->nick))
1510                                 {
1511                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1512                                         {
1513                                                 /* user is +i, and source not on the channel, does not show
1514                                                  * nick in NAMES list */
1515                                                 continue;
1516                                         }
1517                                         count++;
1518                                 }
1519                         }
1520                 }
1521         }
1522         log(DEBUG,"usercount_i: %s %d",c->name,count);
1523         return count;
1524 }
1525
1526
1527 int usercount(chanrec *c)
1528 {
1529         int i = 0;
1530         int count = 0;
1531
1532         if (!c)
1533         {
1534                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1535                 return 0;
1536         }
1537
1538         strcpy(list,"");
1539         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1540         {
1541                 if (i->second)
1542                 {
1543                         if (has_channel(i->second,c))
1544                         {
1545                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1546                                 {
1547                                         count++;
1548                                 }
1549                         }
1550                 }
1551         }
1552         log(DEBUG,"usercount: %s %d",c->name,count);
1553         return count;
1554 }
1555
1556
1557 /* add a channel to a user, creating the record for it if needed and linking
1558  * it to the user record */
1559
1560 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1561 {
1562         if ((!user) || (!cn))
1563         {
1564                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1565                 return 0;
1566         }
1567
1568         int i = 0;
1569         chanrec* Ptr;
1570         int created = 0;
1571         char cname[MAXBUF];
1572
1573         strncpy(cname,cn,MAXBUF);
1574
1575         // we MUST declare this wherever we use FOREACH_RESULT
1576         int MOD_RESULT = 0;
1577
1578         if (strlen(cname) > CHANMAX-1)
1579         {
1580                 cname[CHANMAX-1] = '\0';
1581         }
1582
1583         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1584
1585         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1586         {
1587                 return NULL; // already on the channel!
1588         }
1589
1590
1591         if (!FindChan(cname))
1592         {
1593                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1594                 if (MOD_RESULT) {
1595                         return NULL;
1596                 }
1597
1598                 /* create a new one */
1599                 log(DEBUG,"add_channel: creating: %s",cname);
1600                 {
1601                         chanlist[cname] = new chanrec();
1602
1603                         strcpy(chanlist[cname]->name, cname);
1604                         chanlist[cname]->topiclock = 1;
1605                         chanlist[cname]->noexternal = 1;
1606                         chanlist[cname]->created = time(NULL);
1607                         strcpy(chanlist[cname]->topic, "");
1608                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1609                         chanlist[cname]->topicset = 0;
1610                         Ptr = chanlist[cname];
1611                         log(DEBUG,"add_channel: created: %s",cname);
1612                         /* set created to 2 to indicate user
1613                          * is the first in the channel
1614                          * and should be given ops */
1615                         created = 2;
1616                 }
1617         }
1618         else
1619         {
1620                 /* channel exists, just fish out a pointer to its struct */
1621                 Ptr = FindChan(cname);
1622                 if (Ptr)
1623                 {
1624                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1625
1626                         // the override flag allows us to bypass channel modes
1627                         // and bans (used by servers)
1628                         if (!override)
1629                         {
1630                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1631                                 if (MOD_RESULT) {
1632                                         return NULL;
1633                                 }
1634
1635                                 if (strcmp(Ptr->key,""))
1636                                 {
1637                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1638                                         if (!key)
1639                                         {
1640                                                 log(DEBUG,"add_channel: no key given in JOIN");
1641                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1642                                                 return NULL;
1643                                         }
1644                                         else
1645                                         {
1646                                                 log(DEBUG,"key at %p is %s",key,key);
1647                                                 if (strcasecmp(key,Ptr->key))
1648                                                 {
1649                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1650                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1651                                                         return NULL;
1652                                                 }
1653                                         }
1654                                 }
1655                                 log(DEBUG,"add_channel: no key");
1656
1657                                 if (Ptr->inviteonly)
1658                                 {
1659                                         log(DEBUG,"add_channel: channel is +i");
1660                                         if (user->IsInvited(Ptr->name))
1661                                         {
1662                                                 /* user was invited to channel */
1663                                                 /* there may be an optional channel NOTICE here */
1664                                         }
1665                                         else
1666                                         {
1667                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1668                                                 return NULL;
1669                                         }
1670                                 }
1671                                 log(DEBUG,"add_channel: channel is not +i");
1672
1673                                 if (Ptr->limit)
1674                                 {
1675                                         if (usercount(Ptr) == Ptr->limit)
1676                                         {
1677                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1678                                                 return NULL;
1679                                         }
1680                                 }
1681
1682                                 log(DEBUG,"add_channel: about to walk banlist");
1683
1684                                 /* check user against the channel banlist */
1685                                 if (Ptr)
1686                                 {
1687                                         if (Ptr->bans.size())
1688                                         {
1689                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1690                                                 {
1691                                                         if (match(user->GetFullHost(),i->data))
1692                                                         {
1693                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1694                                                                 return NULL;
1695                                                         }
1696                                                 }
1697                                         }
1698                                 }
1699
1700                                 log(DEBUG,"add_channel: bans checked");
1701
1702
1703                                 if ((Ptr) && (user))
1704                                 {
1705                                         user->RemoveInvite(Ptr->name);
1706                                 }
1707
1708                                 log(DEBUG,"add_channel: invites removed");
1709
1710                         }
1711                         else
1712                         {
1713                                 log(DEBUG,"Overridden checks");
1714                         }
1715
1716
1717                 }
1718                 created = 1;
1719         }
1720
1721         log(DEBUG,"Passed channel checks");
1722
1723         for (int i =0; i != MAXCHANS; i++)
1724         {
1725                 log(DEBUG,"Check location %d",i);
1726                 if (user->chans[i].channel == NULL)
1727                 {
1728                         log(DEBUG,"Adding into their channel list at location %d",i);
1729
1730                         if (created == 2)
1731                         {
1732                                 /* first user in is given ops */
1733                                 user->chans[i].uc_modes = UCMODE_OP;
1734                         }
1735                         else
1736                         {
1737                                 user->chans[i].uc_modes = 0;
1738                         }
1739                         user->chans[i].channel = Ptr;
1740                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1741
1742                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1743                         {
1744                                 // use the stamdard J token with no privilages.
1745                                 char buffer[MAXBUF];
1746                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1747                                 NetSendToAll(buffer);
1748                         }
1749
1750                         log(DEBUG,"Sent JOIN to client");
1751
1752                         if (Ptr->topicset)
1753                         {
1754                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1755                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1756                         }
1757                         userlist(user,Ptr);
1758                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1759                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1760                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1761                         FOREACH_MOD OnUserJoin(user,Ptr);
1762                         return Ptr;
1763                 }
1764         }
1765         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1766         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1767         return NULL;
1768 }
1769
1770 /* remove a channel from a users record, and remove the record from memory
1771  * if the channel has become empty */
1772
1773 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1774 {
1775         if ((!user) || (!cname))
1776         {
1777                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1778                 return NULL;
1779         }
1780
1781         chanrec* Ptr;
1782         int created = 0;
1783
1784         if ((!cname) || (!user))
1785         {
1786                 return NULL;
1787         }
1788
1789         Ptr = FindChan(cname);
1790
1791         if (!Ptr)
1792         {
1793                 return NULL;
1794         }
1795
1796         FOREACH_MOD OnUserPart(user,Ptr);
1797         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1798
1799         for (int i =0; i != MAXCHANS; i++)
1800         {
1801                 /* zap it from the channel list of the user */
1802                 if (user->chans[i].channel == Ptr)
1803                 {
1804                         if (reason)
1805                         {
1806                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1807
1808                                 if (!local)
1809                                 {
1810                                         char buffer[MAXBUF];
1811                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1812                                         NetSendToAll(buffer);
1813                                 }
1814
1815
1816                         }
1817                         else
1818                         {
1819                                 if (!local)
1820                                 {
1821                                         char buffer[MAXBUF];
1822                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1823                                         NetSendToAll(buffer);
1824                                 }
1825
1826                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1827                         }
1828                         user->chans[i].uc_modes = 0;
1829                         user->chans[i].channel = NULL;
1830                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1831                         break;
1832                 }
1833         }
1834
1835         /* if there are no users left on the channel */
1836         if (!usercount(Ptr))
1837         {
1838                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1839
1840                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1841
1842                 /* kill the record */
1843                 if (iter != chanlist.end())
1844                 {
1845                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1846                         delete iter->second;
1847                         chanlist.erase(iter);
1848                 }
1849         }
1850 }
1851
1852
1853 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1854 {
1855         if ((!src) || (!user) || (!Ptr) || (!reason))
1856         {
1857                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1858                 return;
1859         }
1860
1861         int i = 0;
1862         int created = 0;
1863
1864         if ((!Ptr) || (!user) || (!src))
1865         {
1866                 return;
1867         }
1868
1869         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1870
1871         if (!has_channel(user,Ptr))
1872         {
1873                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1874                 return;
1875         }
1876         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1877         {
1878                 if (cstatus(src,Ptr) == STATUS_HOP)
1879                 {
1880                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1881                 }
1882                 else
1883                 {
1884                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1885                 }
1886
1887                 return;
1888         }
1889
1890         for (int i =0; i != MAXCHANS; i++)
1891         {
1892                 /* zap it from the channel list of the user */
1893                 if (user->chans[i].channel)
1894                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1895                 {
1896                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1897                         user->chans[i].uc_modes = 0;
1898                         user->chans[i].channel = NULL;
1899                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1900                         break;
1901                 }
1902         }
1903
1904         /* if there are no users left on the channel */
1905         if (!usercount(Ptr))
1906         {
1907                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1908
1909                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1910
1911                 /* kill the record */
1912                 if (iter != chanlist.end())
1913                 {
1914                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1915                         delete iter->second;
1916                         chanlist.erase(iter);
1917                 }
1918         }
1919 }
1920
1921
1922 /* returns 1 if user u has channel c in their record, 0 if not */
1923
1924 int has_channel(userrec *u, chanrec *c)
1925 {
1926         if ((!u) || (!c))
1927         {
1928                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1929                 return 0;
1930         }
1931         for (int i =0; i != MAXCHANS; i++)
1932         {
1933                 if (u->chans[i].channel == c)
1934                 {
1935                         return 1;
1936                 }
1937         }
1938         return 0;
1939 }
1940
1941 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1942 {
1943         userrec *d;
1944         int i;
1945
1946         if ((!user) || (!dest) || (!chan))
1947         {
1948                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1949                 return 0;
1950         }
1951         if (status < STATUS_OP)
1952         {
1953                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1954                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1955                 return 0;
1956         }
1957         else
1958         {
1959                 if (!isnick(dest))
1960                 {
1961                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1962                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1963                         return 0;
1964                 }
1965                 d = Find(dest);
1966                 if (!d)
1967                 {
1968                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1969                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1970                         return 0;
1971                 }
1972                 else
1973                 {
1974                         for (int i = 0; i != MAXCHANS; i++)
1975                         {
1976                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1977                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1978                                 {
1979                                         if (d->chans[i].uc_modes & UCMODE_OP)
1980                                         {
1981                                                 /* mode already set on user, dont allow multiple */
1982                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1983                                                 return 0;
1984                                         }
1985                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1986                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1987                                         return 1;
1988                                 }
1989                         }
1990                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1991                 }
1992         }
1993         return 1;
1994 }
1995
1996 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1997 {
1998         userrec *d;
1999         int i;
2000
2001         if ((!user) || (!dest) || (!chan))
2002         {
2003                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
2004                 return 0;
2005         }
2006         if (status != STATUS_OP)
2007         {
2008                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2009                 return 0;
2010         }
2011         else
2012         {
2013                 d = Find(dest);
2014                 if (!isnick(dest))
2015                 {
2016                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2017                         return 0;
2018                 }
2019                 if (!d)
2020                 {
2021                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2022                         return 0;
2023                 }
2024                 else
2025                 {
2026                         for (int i = 0; i != MAXCHANS; i++)
2027                         {
2028                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2029                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2030                                 {
2031                                         if (d->chans[i].uc_modes & UCMODE_HOP)
2032                                         {
2033                                                 /* mode already set on user, dont allow multiple */
2034                                                 return 0;
2035                                         }
2036                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
2037                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
2038                                         return 1;
2039                                 }
2040                         }
2041                 }
2042         }
2043         return 1;
2044 }
2045
2046 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
2047 {
2048         userrec *d;
2049         int i;
2050
2051         if ((!user) || (!dest) || (!chan))
2052         {
2053                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
2054                 return 0;
2055         }
2056         if (status < STATUS_HOP)
2057         {
2058                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2059                 return 0;
2060         }
2061         else
2062         {
2063                 d = Find(dest);
2064                 if (!isnick(dest))
2065                 {
2066                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2067                         return 0;
2068                 }
2069                 if (!d)
2070                 {
2071                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2072                         return 0;
2073                 }
2074                 else
2075                 {
2076                         for (int i = 0; i != MAXCHANS; i++)
2077                         {
2078                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2079                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2080                                 {
2081                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
2082                                         {
2083                                                 /* mode already set on user, dont allow multiple */
2084                                                 return 0;
2085                                         }
2086                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
2087                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
2088                                         return 1;
2089                                 }
2090                         }
2091                 }
2092         }
2093         return 1;
2094 }
2095
2096 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
2097 {
2098         userrec *d;
2099         int i;
2100
2101         if ((!user) || (!dest) || (!chan))
2102         {
2103                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
2104                 return 0;
2105         }
2106         if (status < STATUS_OP)
2107         {
2108                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
2109                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2110                 return 0;
2111         }
2112         else
2113         {
2114                 d = Find(dest);
2115                 if (!isnick(dest))
2116                 {
2117                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
2118                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2119                         return 0;
2120                 }
2121                 if (!d)
2122                 {
2123                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
2124                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2125                         return 0;
2126                 }
2127                 else
2128                 {
2129                         for (int i = 0; i != MAXCHANS; i++)
2130                         {
2131                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2132                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2133                                 {
2134                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2135                                         {
2136                                                 /* mode already set on user, dont allow multiple */
2137                                                 return 0;
2138                                         }
2139                                         d->chans[i].uc_modes ^= UCMODE_OP;
2140                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2141                                         return 1;
2142                                 }
2143                         }
2144                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
2145                 }
2146         }
2147         return 1;
2148 }
2149
2150 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2151 {
2152         userrec *d;
2153         int i;
2154
2155         if ((!user) || (!dest) || (!chan))
2156         {
2157                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2158                 return 0;
2159         }
2160         if (status != STATUS_OP)
2161         {
2162                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2163                 return 0;
2164         }
2165         else
2166         {
2167                 d = Find(dest);
2168                 if (!isnick(dest))
2169                 {
2170                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2171                         return 0;
2172                 }
2173                 if (!d)
2174                 {
2175                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2176                         return 0;
2177                 }
2178                 else
2179                 {
2180                         for (int i = 0; i != MAXCHANS; i++)
2181                         {
2182                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2183                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2184                                 {
2185                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2186                                         {
2187                                                 /* mode already set on user, dont allow multiple */
2188                                                 return 0;
2189                                         }
2190                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2191                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2192                                         return 1;
2193                                 }
2194                         }
2195                 }
2196         }
2197         return 1;
2198 }
2199
2200 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2201 {
2202         userrec *d;
2203         int i;
2204
2205         if ((!user) || (!dest) || (!chan))
2206         {
2207                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2208                 return 0;
2209         }
2210         if (status < STATUS_HOP)
2211         {
2212                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2213                 return 0;
2214         }
2215         else
2216         {
2217                 d = Find(dest);
2218                 if (!isnick(dest))
2219                 {
2220                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2221                         return 0;
2222                 }
2223                 if (!d)
2224                 {
2225                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2226                         return 0;
2227                 }
2228                 else
2229                 {
2230                         for (int i = 0; i != MAXCHANS; i++)
2231                         {
2232                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2233                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2234                                 {
2235                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2236                                         {
2237                                                 /* mode already set on user, dont allow multiple */
2238                                                 return 0;
2239                                         }
2240                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2241                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2242                                         return 1;
2243                                 }
2244                         }
2245                 }
2246         }
2247         return 1;
2248 }
2249
2250 void TidyBan(char *ban)
2251 {
2252         if (!ban) {
2253                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2254                 return;
2255         }
2256
2257         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2258
2259         strcpy(temp,ban);
2260
2261         char* pos_of_pling = strchr(temp,'!');
2262         char* pos_of_at = strchr(temp,'@');
2263
2264         pos_of_pling[0] = '\0';
2265         pos_of_at[0] = '\0';
2266         pos_of_pling++;
2267         pos_of_at++;
2268
2269         strncpy(NICK,temp,NICKMAX);
2270         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2271         strncpy(HOST,pos_of_at,160);
2272
2273         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2274 }
2275
2276 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2277 {
2278         if ((!user) || (!dest) || (!chan)) {
2279                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2280                 return 0;
2281         }
2282
2283         BanItem b;
2284         if ((!user) || (!dest) || (!chan))
2285                 return 0;
2286         if (strchr(dest,'!')==0)
2287                 return 0;
2288         if (strchr(dest,'@')==0)
2289                 return 0;
2290         for (int i = 0; i < strlen(dest); i++)
2291                 if (dest[i] < 32)
2292                         return 0;
2293         for (int i = 0; i < strlen(dest); i++)
2294                 if (dest[i] > 126)
2295                         return 0;
2296         int c = 0;
2297         for (int i = 0; i < strlen(dest); i++)
2298                 if (dest[i] == '!')
2299                         c++;
2300         if (c>1)
2301                 return 0;
2302         c = 0;
2303         for (int i = 0; i < strlen(dest); i++)
2304                 if (dest[i] == '@')
2305                         c++;
2306         if (c>1)
2307                 return 0;
2308         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2309
2310         TidyBan(dest);
2311         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2312         {
2313                 if (!strcasecmp(i->data,dest))
2314                 {
2315                         // dont allow a user to set the same ban twice
2316                         return 0;
2317                 }
2318         }
2319
2320         b.set_time = time(NULL);
2321         strncpy(b.data,dest,MAXBUF);
2322         strncpy(b.set_by,user->nick,NICKMAX);
2323         chan->bans.push_back(b);
2324         return 1;
2325 }
2326
2327 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2328 {
2329         if ((!user) || (!dest) || (!chan)) {
2330                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2331                 return 0;
2332         }
2333
2334         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2335         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2336         {
2337                 if (!strcasecmp(i->data,dest))
2338                 {
2339                         chan->bans.erase(i);
2340                         return 1;
2341                 }
2342         }
2343         return 0;
2344 }
2345
2346 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2347 {
2348         if (!parameters) {
2349                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2350                 return;
2351         }
2352
2353         char modelist[MAXBUF];
2354         char outlist[MAXBUF];
2355         char outstr[MAXBUF];
2356         char outpars[32][MAXBUF];
2357         int param = 2;
2358         int pc = 0;
2359         int ptr = 0;
2360         int mdir = 1;
2361         int r = 0;
2362         bool k_set = false, l_set = false;
2363
2364         if (pcnt < 2)
2365         {
2366                 return;
2367         }
2368
2369         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2370
2371         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2372                                         /* parameters[2] onwards are parameters for
2373                                          * modes that require them :) */
2374         strcpy(outlist,"+");
2375         mdir = 1;
2376
2377         log(DEBUG,"process_modes: modelist: %s",modelist);
2378
2379         for (ptr = 0; ptr < strlen(modelist); ptr++)
2380         {
2381                 r = 0;
2382
2383                 {
2384                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2385                         char modechar = modelist[ptr];
2386                         switch (modelist[ptr])
2387                         {
2388                                 case '-':
2389                                         if (mdir != 0)
2390                                         {
2391                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2392                                                 {
2393                                                         outlist[strlen(outlist)-1] = '-';
2394                                                 }
2395                                                 else
2396                                                 {
2397                                                         strcat(outlist,"-");
2398                                                 }
2399                                         }
2400                                         mdir = 0;
2401
2402                                 break;
2403
2404                                 case '+':
2405                                         if (mdir != 1)
2406                                         {
2407                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2408                                                 {
2409                                                         outlist[strlen(outlist)-1] = '+';
2410                                                 }
2411                                                 else
2412                                                 {
2413                                                         strcat(outlist,"+");
2414                                                 }
2415                                         }
2416                                         mdir = 1;
2417                                 break;
2418
2419                                 case 'o':
2420                                         log(DEBUG,"Ops");
2421                                         if ((param >= pcnt)) break;
2422                                         log(DEBUG,"Enough parameters left");
2423                                         if (mdir == 1)
2424                                         {
2425                                                 log(DEBUG,"calling give_ops");
2426                                                 r = give_ops(user,parameters[param++],chan,status);
2427                                         }
2428                                         else
2429                                         {
2430                                                 log(DEBUG,"calling take_ops");
2431                                                 r = take_ops(user,parameters[param++],chan,status);
2432                                         }
2433                                         if (r)
2434                                         {
2435                                                 strcat(outlist,"o");
2436                                                 strcpy(outpars[pc++],parameters[param-1]);
2437                                         }
2438                                 break;
2439
2440                                 case 'h':
2441                                         if ((param >= pcnt)) break;
2442                                         if (mdir == 1)
2443                                         {
2444                                                 r = give_hops(user,parameters[param++],chan,status);
2445                                         }
2446                                         else
2447                                         {
2448                                                 r = take_hops(user,parameters[param++],chan,status);
2449                                         }
2450                                         if (r)
2451                                         {
2452                                                 strcat(outlist,"h");
2453                                                 strcpy(outpars[pc++],parameters[param-1]);
2454                                         }
2455                                 break;
2456
2457
2458                                 case 'v':
2459                                         if ((param >= pcnt)) break;
2460                                         if (mdir == 1)
2461                                         {
2462                                                 r = give_voice(user,parameters[param++],chan,status);
2463                                         }
2464                                         else
2465                                         {
2466                                                 r = take_voice(user,parameters[param++],chan,status);
2467                                         }
2468                                         if (r)
2469                                         {
2470                                                 strcat(outlist,"v");
2471                                                 strcpy(outpars[pc++],parameters[param-1]);
2472                                         }
2473                                 break;
2474
2475                                 case 'b':
2476                                         if ((param >= pcnt)) break;
2477                                         if (mdir == 1)
2478                                         {
2479                                                 r = add_ban(user,parameters[param++],chan,status);
2480                                         }
2481                                         else
2482                                         {
2483                                                 r = take_ban(user,parameters[param++],chan,status);
2484                                         }
2485                                         if (r)
2486                                         {
2487                                                 strcat(outlist,"b");
2488                                                 strcpy(outpars[pc++],parameters[param-1]);
2489                                         }
2490                                 break;
2491
2492
2493                                 case 'k':
2494                                         if ((param >= pcnt))
2495                                                 break;
2496
2497                                         if (mdir == 1)
2498                                         {
2499                                                 if (k_set)
2500                                                         break;
2501
2502                                                 if (!strcmp(chan->key,""))
2503                                                 {
2504                                                         strcat(outlist,"k");
2505                                                         char key[MAXBUF];
2506                                                         strcpy(key,parameters[param++]);
2507                                                         if (strlen(key)>32) {
2508                                                                 key[31] = '\0';
2509                                                         }
2510                                                         strcpy(outpars[pc++],key);
2511                                                         strcpy(chan->key,key);
2512                                                         k_set = true;
2513                                                 }
2514                                         }
2515                                         else
2516                                         {
2517                                                 /* checks on -k are case sensitive and only accurate to the
2518                                                    first 32 characters */
2519                                                 char key[MAXBUF];
2520                                                 strcpy(key,parameters[param++]);
2521                                                 if (strlen(key)>32) {
2522                                                         key[31] = '\0';
2523                                                 }
2524                                                 /* only allow -k if correct key given */
2525                                                 if (!strcmp(chan->key,key))
2526                                                 {
2527                                                         strcat(outlist,"k");
2528                                                         strcpy(chan->key,"");
2529                                                         strcpy(outpars[pc++],key);
2530                                                 }
2531                                         }
2532                                 break;
2533
2534                                 case 'l':
2535                                         if (mdir == 0)
2536                                         {
2537                                                 if (chan->limit)
2538                                                 {
2539                                                         strcat(outlist,"l");
2540                                                         chan->limit = 0;
2541                                                 }
2542                                         }
2543
2544                                         if ((param >= pcnt)) break;
2545                                         if (mdir == 1)
2546                                         {
2547                                                 if (l_set)
2548                                                         break;
2549
2550                                                 bool invalid = false;
2551                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2552                                                 {
2553                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2554                                                         {
2555                                                                 invalid = true;
2556                                                         }
2557                                                 }
2558                                                 if (atoi(parameters[param]) < 1)
2559                                                 {
2560                                                         invalid = true;
2561                                                 }
2562
2563                                                 if (invalid)
2564                                                         break;
2565
2566                                                 chan->limit = atoi(parameters[param]);
2567                                                 if (chan->limit)
2568                                                 {
2569                                                         strcat(outlist,"l");
2570                                                         strcpy(outpars[pc++],parameters[param++]);
2571                                                         l_set = true;
2572                                                 }
2573                                         }
2574                                 break;
2575
2576                                 case 'i':
2577                                         if (chan->inviteonly != mdir)
2578                                         {
2579                                                 strcat(outlist,"i");
2580                                         }
2581                                         chan->inviteonly = mdir;
2582                                 break;
2583
2584                                 case 't':
2585                                         if (chan->topiclock != mdir)
2586                                         {
2587                                                 strcat(outlist,"t");
2588                                         }
2589                                         chan->topiclock = mdir;
2590                                 break;
2591
2592                                 case 'n':
2593                                         if (chan->noexternal != mdir)
2594                                         {
2595                                                 strcat(outlist,"n");
2596                                         }
2597                                         chan->noexternal = mdir;
2598                                 break;
2599
2600                                 case 'm':
2601                                         if (chan->moderated != mdir)
2602                                         {
2603                                                 strcat(outlist,"m");
2604                                         }
2605                                         chan->moderated = mdir;
2606                                 break;
2607
2608                                 case 's':
2609                                         if (chan->secret != mdir)
2610                                         {
2611                                                 strcat(outlist,"s");
2612                                                 if (chan->c_private)
2613                                                 {
2614                                                         chan->c_private = 0;
2615                                                         if (mdir)
2616                                                         {
2617                                                                 strcat(outlist,"-p+");
2618                                                         }
2619                                                         else
2620                                                         {
2621                                                                 strcat(outlist,"+p-");
2622                                                         }
2623                                                 }
2624                                         }
2625                                         chan->secret = mdir;
2626                                 break;
2627
2628                                 case 'p':
2629                                         if (chan->c_private != mdir)
2630                                         {
2631                                                 strcat(outlist,"p");
2632                                                 if (chan->secret)
2633                                                 {
2634                                                         chan->secret = 0;
2635                                                         if (mdir)
2636                                                         {
2637                                                                 strcat(outlist,"-s+");
2638                                                         }
2639                                                         else
2640                                                         {
2641                                                                 strcat(outlist,"+s-");
2642                                                         }
2643                                                 }
2644                                         }
2645                                         chan->c_private = mdir;
2646                                 break;
2647
2648                                 default:
2649                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2650                                         string_list p;
2651                                         p.clear();
2652                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2653                                         {
2654                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2655                                                 break;
2656                                         }
2657                                         if (ModeDefined(modechar,MT_CHANNEL))
2658                                         {
2659                                                 log(DEBUG,"A module has claimed this mode");
2660                                                 if (param<pcnt)
2661                                                 {
2662                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2663                                                         {
2664                                                                 p.push_back(parameters[param]);
2665                                                         }
2666                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2667                                                         {
2668                                                                 p.push_back(parameters[param]);
2669                                                         }
2670                                                 }
2671                                                 bool handled = false;
2672                                                 if (param>=pcnt)
2673                                                 {
2674                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2675                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2676                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2677                                                         {
2678                                                                 handled = true;
2679                                                                 param++;
2680                                                         }
2681                                                 }
2682                                                 for (int i = 0; i <= MODCOUNT; i++)
2683                                                 {
2684                                                         if (!handled)
2685                                                         {
2686                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2687                                                                 {
2688                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2689                                                                         char app[] = {modechar, 0};
2690                                                                         if (ptr>0)
2691                                                                         {
2692                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2693                                                                                 {
2694                                                                                         strcat(outlist, app);
2695                                                                                 }
2696                                                                                 else if (!strchr(outlist,modechar))
2697                                                                                 {
2698                                                                                         strcat(outlist, app);
2699                                                                                 }
2700                                                                         }
2701                                                                         chan->SetCustomMode(modechar,mdir);
2702                                                                         // include parameters in output if mode has them
2703                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2704                                                                         {
2705                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2706                                                                                 strcpy(outpars[pc++],parameters[param++]);
2707                                                                         }
2708                                                                         // break, because only one module can handle the mode.
2709                                                                         handled = true;
2710                                                                 }
2711                                                         }
2712                                                 }
2713                                         }
2714                                 break;
2715
2716                         }
2717                 }
2718         }
2719
2720         /* this ensures only the *valid* modes are sent out onto the network */
2721         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2722         {
2723                 outlist[strlen(outlist)-1] = '\0';
2724         }
2725         if (strcmp(outlist,""))
2726         {
2727                 strcpy(outstr,outlist);
2728                 for (ptr = 0; ptr < pc; ptr++)
2729                 {
2730                         strcat(outstr," ");
2731                         strcat(outstr,outpars[ptr]);
2732                 }
2733                 if (local)
2734                 {
2735                         log(DEBUG,"Local mode change");
2736                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2737                 }
2738                 else
2739                 {
2740                         if (servermode)
2741                         {
2742                                 if (!silent)
2743                                 {
2744                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2745                                         // M token for a usermode must go to all servers
2746                                         char buffer[MAXBUF];
2747                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
2748                                         NetSendToAll(buffer);
2749                                 }
2750
2751                         }
2752                         else
2753                         {
2754                                 if (!silent)
2755                                 {
2756                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2757                                         // M token for a usermode must go to all servers
2758                                         char buffer[MAXBUF];
2759                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2760                                         NetSendToAll(buffer);
2761                                 }
2762                         }
2763                 }
2764         }
2765 }
2766
2767 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2768
2769 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2770 {
2771         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2772         // RFC1459 specified modes
2773         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2774         {
2775                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2776                 return true;
2777         }
2778
2779         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2780         if ((strchr(sourcemodes,'o')) && (!adding))
2781         {
2782                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2783                 return true;
2784         }
2785         else if (umode == 'o')
2786         {
2787                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2788                 return false;
2789         }
2790
2791         // process any module-defined modes that need oper
2792         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2793         {
2794                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2795                 return true;
2796         }
2797         else
2798         if (ModeDefined(umode,MT_CLIENT))
2799         {
2800                 // process any module-defined modes that don't need oper
2801                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2802                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2803                 {
2804                         // no, this mode needs oper, and this user 'aint got what it takes!
2805                         return false;
2806                 }
2807                 return true;
2808         }
2809
2810         // anything else - return false.
2811         log(DEBUG,"umode %c not known by any ruleset",umode);
2812         return false;
2813 }
2814
2815 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2816 {
2817         userrec* s2;
2818         bool faked = false;
2819         if (!source)
2820         {
2821                 s2 = new userrec;
2822                 strncpy(s2->nick,ServerName,NICKMAX);
2823                 strcpy(s2->modes,"o");
2824                 s2->fd = -1;
2825                 source = s2;
2826                 faked = true;
2827         }
2828         string_list p;
2829         p.clear();
2830         if (ModeDefined(umode,MT_CLIENT))
2831         {
2832                 for (int i = 0; i <= MODCOUNT; i++)
2833                 {
2834                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2835                         {
2836                                 log(DEBUG,"Module claims umode %c",umode);
2837                                 return true;
2838                         }
2839                 }
2840                 log(DEBUG,"No module claims umode %c",umode);
2841                 if (faked)
2842                 {
2843                         delete s2;
2844                         source = NULL;
2845                 }
2846                 return false;
2847         }
2848         else
2849         {
2850                 if (faked)
2851                 {
2852                         delete s2;
2853                         source = NULL;
2854                 }
2855                 return false;
2856         }
2857 }
2858
2859 void handle_mode(char **parameters, int pcnt, userrec *user)
2860 {
2861         chanrec* Ptr;
2862         userrec* dest;
2863         int can_change,i;
2864         int direction = 1;
2865         char outpars[MAXBUF];
2866
2867         dest = Find(parameters[0]);
2868
2869         if (!user)
2870         {
2871                 return;
2872         }
2873
2874         if ((dest) && (pcnt == 1))
2875         {
2876                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2877                 return;
2878         }
2879
2880         if ((dest) && (pcnt > 1))
2881         {
2882                 char dmodes[MAXBUF];
2883                 strncpy(dmodes,dest->modes,MAXBUF);
2884                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2885
2886                 can_change = 0;
2887                 if (user != dest)
2888                 {
2889                         if (strchr(user->modes,'o'))
2890                         {
2891                                 can_change = 1;
2892                         }
2893                 }
2894                 else
2895                 {
2896                         can_change = 1;
2897                 }
2898                 if (!can_change)
2899                 {
2900                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2901                         return;
2902                 }
2903
2904                 strcpy(outpars,"+");
2905                 direction = 1;
2906
2907                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2908                         return;
2909
2910                 for (int i = 0; i < strlen(parameters[1]); i++)
2911                 {
2912                         if (parameters[1][i] == '+')
2913                         {
2914                                 if (direction != 1)
2915                                 {
2916                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2917                                         {
2918                                                 outpars[strlen(outpars)-1] = '+';
2919                                         }
2920                                         else
2921                                         {
2922                                                 strcat(outpars,"+");
2923                                         }
2924                                 }
2925                                 direction = 1;
2926                         }
2927                         else
2928                         if (parameters[1][i] == '-')
2929                         {
2930                                 if (direction != 0)
2931                                 {
2932                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2933                                         {
2934                                                 outpars[strlen(outpars)-1] = '-';
2935                                         }
2936                                         else
2937                                         {
2938                                                 strcat(outpars,"-");
2939                                         }
2940                                 }
2941                                 direction = 0;
2942                         }
2943                         else
2944                         {
2945                                 can_change = 0;
2946                                 if (strchr(user->modes,'o'))
2947                                 {
2948                                         can_change = 1;
2949                                 }
2950                                 else
2951                                 {
2952                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2953                                         {
2954                                                 can_change = 1;
2955                                         }
2956                                 }
2957                                 if (can_change)
2958                                 {
2959                                         if (direction == 1)
2960                                         {
2961                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2962                                                 {
2963                                                         char umode = parameters[1][i];
2964                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2965                                                         {
2966                                                                 dmodes[strlen(dmodes)+1]='\0';
2967                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2968                                                                 outpars[strlen(outpars)+1]='\0';
2969                                                                 outpars[strlen(outpars)] = parameters[1][i];
2970                                                         }
2971                                                 }
2972                                         }
2973                                         else
2974                                         {
2975                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2976                                                 {
2977                                                         char umode = parameters[1][i];
2978                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2979                                                         {
2980                                                                 int q = 0;
2981                                                                 char temp[MAXBUF];
2982                                                                 char moo[MAXBUF];
2983
2984                                                                 outpars[strlen(outpars)+1]='\0';
2985                                                                 outpars[strlen(outpars)] = parameters[1][i];
2986
2987                                                                 strcpy(temp,"");
2988                                                                 for (q = 0; q < strlen(dmodes); q++)
2989                                                                 {
2990                                                                         if (dmodes[q] != parameters[1][i])
2991                                                                         {
2992                                                                                 moo[0] = dmodes[q];
2993                                                                                 moo[1] = '\0';
2994                                                                                 strcat(temp,moo);
2995                                                                         }
2996                                                                 }
2997                                                                 strcpy(dmodes,temp);
2998                                                         }
2999                                                 }
3000                                         }
3001                                 }
3002                         }
3003                 }
3004                 if (strlen(outpars))
3005                 {
3006                         char b[MAXBUF];
3007                         strcpy(b,"");
3008                         int z = 0;
3009                         int i = 0;
3010                         while (i < strlen (outpars))
3011                         {
3012                                 b[z++] = outpars[i++];
3013                                 b[z] = '\0';
3014                                 if (i<strlen(outpars)-1)
3015                                 {
3016                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3017                                         {
3018                                                 // someones playing silly buggers and trying
3019                                                 // to put a +- or -+ into the line...
3020                                                 i++;
3021                                         }
3022                                 }
3023                                 if (i == strlen(outpars)-1)
3024                                 {
3025                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3026                                         {
3027                                                 i++;
3028                                         }
3029                                 }
3030                         }
3031
3032                         z = strlen(b)-1;
3033                         if ((b[z] == '-') || (b[z] == '+'))
3034                                 b[z] == '\0';
3035
3036                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3037                                 return;
3038
3039                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3040
3041                         // M token for a usermode must go to all servers
3042                         char buffer[MAXBUF];
3043                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3044                         NetSendToAll(buffer);
3045
3046                         if (strlen(dmodes)>MAXMODES)
3047                         {
3048                                 dmodes[MAXMODES-1] = '\0';
3049                         }
3050                         log(DEBUG,"Stripped mode line");
3051                         log(DEBUG,"Line dest is now %s",dmodes);
3052                         strncpy(dest->modes,dmodes,MAXMODES);
3053
3054                 }
3055
3056                 return;
3057         }
3058
3059         Ptr = FindChan(parameters[0]);
3060         if (Ptr)
3061         {
3062                 if (pcnt == 1)
3063                 {
3064                         /* just /modes #channel */
3065                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
3066                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
3067                         return;
3068                 }
3069                 else
3070                 if (pcnt == 2)
3071                 {
3072                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
3073                         {
3074
3075                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
3076                                 {
3077                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
3078                                 }
3079                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
3080                                 return;
3081                         }
3082                 }
3083
3084                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3085                 {
3086                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
3087                         return;
3088                 }
3089
3090                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
3091         }
3092         else
3093         {
3094                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3095         }
3096 }
3097
3098
3099
3100
3101 void server_mode(char **parameters, int pcnt, userrec *user)
3102 {
3103         chanrec* Ptr;
3104         userrec* dest;
3105         int can_change,i;
3106         int direction = 1;
3107         char outpars[MAXBUF];
3108
3109         dest = Find(parameters[0]);
3110
3111         // fix: ChroNiCk found this - we cant use this as debug if its null!
3112         if (dest)
3113         {
3114                 log(DEBUG,"server_mode on %s",dest->nick);
3115         }
3116
3117         if ((dest) && (pcnt > 1))
3118         {
3119                 log(DEBUG,"params > 1");
3120
3121                 char dmodes[MAXBUF];
3122                 strncpy(dmodes,dest->modes,MAXBUF);
3123
3124                 strcpy(outpars,"+");
3125                 direction = 1;
3126
3127                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3128                         return;
3129
3130                 for (int i = 0; i < strlen(parameters[1]); i++)
3131                 {
3132                         if (parameters[1][i] == '+')
3133                         {
3134                                 if (direction != 1)
3135                                 {
3136                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3137                                         {
3138                                                 outpars[strlen(outpars)-1] = '+';
3139                                         }
3140                                         else
3141                                         {
3142                                                 strcat(outpars,"+");
3143                                         }
3144                                 }
3145                                 direction = 1;
3146                         }
3147                         else
3148                         if (parameters[1][i] == '-')
3149                         {
3150                                 if (direction != 0)
3151                                 {
3152                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3153                                         {
3154                                                 outpars[strlen(outpars)-1] = '-';
3155                                         }
3156                                         else
3157                                         {
3158                                                 strcat(outpars,"-");
3159                                         }
3160                                 }
3161                                 direction = 0;
3162                         }
3163                         else
3164                         {
3165                                 log(DEBUG,"begin mode processing entry");
3166                                 can_change = 1;
3167                                 if (can_change)
3168                                 {
3169                                         if (direction == 1)
3170                                         {
3171                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3172                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3173                                                 {
3174                                                         char umode = parameters[1][i];
3175                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3176                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3177                                                         {
3178                                                                 dmodes[strlen(dmodes)+1]='\0';
3179                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3180                                                                 outpars[strlen(outpars)+1]='\0';
3181                                                                 outpars[strlen(outpars)] = parameters[1][i];
3182                                                         }
3183                                                 }
3184                                         }
3185                                         else
3186                                         {
3187                                                 // can only remove a mode they already have
3188                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3189                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3190                                                 {
3191                                                         char umode = parameters[1][i];
3192                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3193                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3194                                                         {
3195                                                                 int q = 0;
3196                                                                 char temp[MAXBUF];
3197                                                                 char moo[MAXBUF];
3198
3199                                                                 outpars[strlen(outpars)+1]='\0';
3200                                                                 outpars[strlen(outpars)] = parameters[1][i];
3201
3202                                                                 strcpy(temp,"");
3203                                                                 for (q = 0; q < strlen(dmodes); q++)
3204                                                                 {
3205                                                                         if (dmodes[q] != parameters[1][i])
3206                                                                         {
3207                                                                                 moo[0] = dmodes[q];
3208                                                                                 moo[1] = '\0';
3209                                                                                 strcat(temp,moo);
3210                                                                         }
3211                                                                 }
3212                                                                 strcpy(dmodes,temp);
3213                                                         }
3214                                                 }
3215                                         }
3216                                 }
3217                         }
3218                 }
3219                 if (strlen(outpars))
3220                 {
3221                         char b[MAXBUF];
3222                         strcpy(b,"");
3223                         int z = 0;
3224                         int i = 0;
3225                         while (i < strlen (outpars))
3226                         {
3227                                 b[z++] = outpars[i++];
3228                                 b[z] = '\0';
3229                                 if (i<strlen(outpars)-1)
3230                                 {
3231                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3232                                         {
3233                                                 // someones playing silly buggers and trying
3234                                                 // to put a +- or -+ into the line...
3235                                                 i++;
3236                                         }
3237                                 }
3238                                 if (i == strlen(outpars)-1)
3239                                 {
3240                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3241                                         {
3242                                                 i++;
3243                                         }
3244                                 }
3245                         }
3246
3247                         z = strlen(b)-1;
3248                         if ((b[z] == '-') || (b[z] == '+'))
3249                                 b[z] == '\0';
3250
3251                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3252                                 return;
3253
3254                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3255
3256                         // M token for a usermode must go to all servers
3257                         char buffer[MAXBUF];
3258                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3259                         NetSendToAll(buffer);
3260
3261                         if (strlen(dmodes)>MAXMODES)
3262                         {
3263                                 dmodes[MAXMODES-1] = '\0';
3264                         }
3265                         log(DEBUG,"Stripped mode line");
3266                         log(DEBUG,"Line dest is now %s",dmodes);
3267                         strncpy(dest->modes,dmodes,MAXMODES);
3268
3269                 }
3270
3271                 return;
3272         }
3273
3274         Ptr = FindChan(parameters[0]);
3275         if (Ptr)
3276         {
3277                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3278         }
3279         else
3280         {
3281                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3282         }
3283 }
3284
3285
3286
3287 void merge_mode(char **parameters, int pcnt)
3288 {
3289         chanrec* Ptr;
3290         userrec* dest;
3291         int can_change,i;
3292         int direction = 1;
3293         char outpars[MAXBUF];
3294
3295         dest = Find(parameters[0]);
3296
3297         // fix: ChroNiCk found this - we cant use this as debug if its null!
3298         if (dest)
3299         {
3300                 log(DEBUG,"merge_mode on %s",dest->nick);
3301         }
3302
3303         if ((dest) && (pcnt > 1))
3304         {
3305                 log(DEBUG,"params > 1");
3306
3307                 char dmodes[MAXBUF];
3308                 strncpy(dmodes,dest->modes,MAXBUF);
3309
3310                 strcpy(outpars,"+");
3311                 direction = 1;
3312
3313                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3314                         return;
3315
3316                 for (int i = 0; i < strlen(parameters[1]); i++)
3317                 {
3318                         if (parameters[1][i] == '+')
3319                         {
3320                                 if (direction != 1)
3321                                 {
3322                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3323                                         {
3324                                                 outpars[strlen(outpars)-1] = '+';
3325                                         }
3326                                         else
3327                                         {
3328                                                 strcat(outpars,"+");
3329                                         }
3330                                 }
3331                                 direction = 1;
3332                         }
3333                         else
3334                         if (parameters[1][i] == '-')
3335                         {
3336                                 if (direction != 0)
3337                                 {
3338                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3339                                         {
3340                                                 outpars[strlen(outpars)-1] = '-';
3341                                         }
3342                                         else
3343                                         {
3344                                                 strcat(outpars,"-");
3345                                         }
3346                                 }
3347                                 direction = 0;
3348                         }
3349                         else
3350                         {
3351                                 log(DEBUG,"begin mode processing entry");
3352                                 can_change = 1;
3353                                 if (can_change)
3354                                 {
3355                                         if (direction == 1)
3356                                         {
3357                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3358                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3359                                                 {
3360                                                         char umode = parameters[1][i];
3361                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3362                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3363                                                         {
3364                                                                 dmodes[strlen(dmodes)+1]='\0';
3365                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3366                                                                 outpars[strlen(outpars)+1]='\0';
3367                                                                 outpars[strlen(outpars)] = parameters[1][i];
3368                                                         }
3369                                                 }
3370                                         }
3371                                         else
3372                                         {
3373                                                 // can only remove a mode they already have
3374                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3375                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3376                                                 {
3377                                                         char umode = parameters[1][i];
3378                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3379                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3380                                                         {
3381                                                                 int q = 0;
3382                                                                 char temp[MAXBUF];
3383                                                                 char moo[MAXBUF];
3384
3385                                                                 outpars[strlen(outpars)+1]='\0';
3386                                                                 outpars[strlen(outpars)] = parameters[1][i];
3387
3388                                                                 strcpy(temp,"");
3389                                                                 for (q = 0; q < strlen(dmodes); q++)
3390                                                                 {
3391                                                                         if (dmodes[q] != parameters[1][i])
3392                                                                         {
3393                                                                                 moo[0] = dmodes[q];
3394                                                                                 moo[1] = '\0';
3395                                                                                 strcat(temp,moo);
3396                                                                         }
3397                                                                 }
3398                                                                 strcpy(dmodes,temp);
3399                                                         }
3400                                                 }
3401                                         }
3402                                 }
3403                         }
3404                 }
3405                 if (strlen(outpars))
3406                 {
3407                         char b[MAXBUF];
3408                         strcpy(b,"");
3409                         int z = 0;
3410                         int i = 0;
3411                         while (i < strlen (outpars))
3412                         {
3413                                 b[z++] = outpars[i++];
3414                                 b[z] = '\0';
3415                                 if (i<strlen(outpars)-1)
3416                                 {
3417                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3418                                         {
3419                                                 // someones playing silly buggers and trying
3420                                                 // to put a +- or -+ into the line...
3421                                                 i++;
3422                                         }
3423                                 }
3424                                 if (i == strlen(outpars)-1)
3425                                 {
3426                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3427                                         {
3428                                                 i++;
3429                                         }
3430                                 }
3431                         }
3432
3433                         z = strlen(b)-1;
3434                         if ((b[z] == '-') || (b[z] == '+'))
3435                                 b[z] == '\0';
3436
3437                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3438                                 return;
3439
3440                         if (strlen(dmodes)>MAXMODES)
3441                         {
3442                                 dmodes[MAXMODES-1] = '\0';
3443                         }
3444                         log(DEBUG,"Stripped mode line");
3445                         log(DEBUG,"Line dest is now %s",dmodes);
3446                         strncpy(dest->modes,dmodes,MAXMODES);
3447
3448                 }
3449
3450                 return;
3451         }
3452
3453         Ptr = FindChan(parameters[0]);
3454         if (Ptr)
3455         {
3456                 userrec s2;
3457                 strncpy(s2.nick,ServerName,NICKMAX);
3458                 strcpy(s2.modes,"o");
3459                 s2.fd = -1;
3460                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3461         }
3462 }
3463
3464
3465 void merge_mode2(char **parameters, int pcnt, userrec* user)
3466 {
3467         chanrec* Ptr;
3468         userrec* dest;
3469         int can_change,i;
3470         int direction = 1;
3471         char outpars[MAXBUF];
3472
3473         dest = Find(parameters[0]);
3474
3475         // fix: ChroNiCk found this - we cant use this as debug if its null!
3476         if (dest)
3477         {
3478                 log(DEBUG,"merge_mode on %s",dest->nick);
3479         }
3480
3481         if ((dest) && (pcnt > 1))
3482         {
3483                 log(DEBUG,"params > 1");
3484
3485                 char dmodes[MAXBUF];
3486                 strncpy(dmodes,dest->modes,MAXBUF);
3487
3488                 strcpy(outpars,"+");
3489                 direction = 1;
3490
3491                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3492                         return;
3493
3494                 for (int i = 0; i < strlen(parameters[1]); i++)
3495                 {
3496                         if (parameters[1][i] == '+')
3497                         {
3498                                 if (direction != 1)
3499                                 {
3500                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3501                                         {
3502                                                 outpars[strlen(outpars)-1] = '+';
3503                                         }
3504                                         else
3505                                         {
3506                                                 strcat(outpars,"+");
3507                                         }
3508                                 }
3509                                 direction = 1;
3510                         }
3511                         else
3512                         if (parameters[1][i] == '-')
3513                         {
3514                                 if (direction != 0)
3515                                 {
3516                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3517                                         {
3518                                                 outpars[strlen(outpars)-1] = '-';
3519                                         }
3520                                         else
3521                                         {
3522                                                 strcat(outpars,"-");
3523                                         }
3524                                 }
3525                                 direction = 0;
3526                         }
3527                         else
3528                         {
3529                                 log(DEBUG,"begin mode processing entry");
3530                                 can_change = 1;
3531                                 if (can_change)
3532                                 {
3533                                         if (direction == 1)
3534                                         {
3535                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3536                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3537                                                 {
3538                                                         char umode = parameters[1][i];
3539                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3540                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3541                                                         {
3542                                                                 dmodes[strlen(dmodes)+1]='\0';
3543                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3544                                                                 outpars[strlen(outpars)+1]='\0';
3545                                                                 outpars[strlen(outpars)] = parameters[1][i];
3546                                                         }
3547                                                 }
3548                                         }
3549                                         else
3550                                         {
3551                                                 // can only remove a mode they already have
3552                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3553                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3554                                                 {
3555                                                         char umode = parameters[1][i];
3556                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3557                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3558                                                         {
3559                                                                 int q = 0;
3560                                                                 char temp[MAXBUF];
3561                                                                 char moo[MAXBUF];
3562
3563                                                                 outpars[strlen(outpars)+1]='\0';
3564                                                                 outpars[strlen(outpars)] = parameters[1][i];
3565
3566                                                                 strcpy(temp,"");
3567                                                                 for (q = 0; q < strlen(dmodes); q++)
3568                                                                 {
3569                                                                         if (dmodes[q] != parameters[1][i])
3570                                                                         {
3571                                                                                 moo[0] = dmodes[q];
3572                                                                                 moo[1] = '\0';
3573                                                                                 strcat(temp,moo);
3574                                                                         }
3575                                                                 }
3576                                                                 strcpy(dmodes,temp);
3577                                                         }
3578                                                 }
3579                                         }
3580                                 }
3581                         }
3582                 }
3583                 if (strlen(outpars))
3584                 {
3585                         char b[MAXBUF];
3586                         strcpy(b,"");
3587                         int z = 0;
3588                         int i = 0;
3589                         while (i < strlen (outpars))
3590                         {
3591                                 b[z++] = outpars[i++];
3592                                 b[z] = '\0';
3593                                 if (i<strlen(outpars)-1)
3594                                 {
3595                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3596                                         {
3597                                                 // someones playing silly buggers and trying
3598                                                 // to put a +- or -+ into the line...
3599                                                 i++;
3600                                         }
3601                                 }
3602                                 if (i == strlen(outpars)-1)
3603                                 {
3604                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3605                                         {
3606                                                 i++;
3607                                         }
3608                                 }
3609                         }
3610
3611                         z = strlen(b)-1;
3612                         if ((b[z] == '-') || (b[z] == '+'))
3613                                 b[z] == '\0';
3614
3615                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3616                                 return;
3617
3618                         WriteTo(user,dest,"MODE :%s",b);
3619
3620                         if (strlen(dmodes)>MAXMODES)
3621                         {
3622                                 dmodes[MAXMODES-1] = '\0';
3623                         }
3624                         log(DEBUG,"Stripped mode line");
3625                         log(DEBUG,"Line dest is now %s",dmodes);
3626                         strncpy(dest->modes,dmodes,MAXMODES);
3627
3628                 }
3629
3630                 return;
3631         }
3632
3633         Ptr = FindChan(parameters[0]);
3634         if (Ptr)
3635         {
3636                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3637                 {
3638                         return;
3639                 }
3640
3641                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3642         }
3643 }
3644
3645
3646
3647 /* This function pokes and hacks at a parameter list like the following:
3648  *
3649  * PART #winbot, #darkgalaxy :m00!
3650  *
3651  * to turn it into a series of individual calls like this:
3652  *
3653  * PART #winbot :m00!
3654  * PART #darkgalaxy :m00!
3655  *
3656  * The seperate calls are sent to a callback function provided by the caller
3657  * (the caller will usually call itself recursively). The callback function
3658  * must be a command handler. Calling this function on a line with no list causes
3659  * no action to be taken. You must provide a starting and ending parameter number
3660  * where the range of the list can be found, useful if you have a terminating
3661  * parameter as above which is actually not part of the list, or parameters
3662  * before the actual list as well. This code is used by many functions which
3663  * can function as "one to list" (see the RFC) */
3664
3665 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3666 {
3667         char plist[MAXBUF];
3668         char *param;
3669         char *pars[32];
3670         char blog[32][MAXBUF];
3671         char blog2[32][MAXBUF];
3672         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3673         char keystr[MAXBUF];
3674         char moo[MAXBUF];
3675
3676         for (int i = 0; i <32; i++)
3677                 strcpy(blog[i],"");
3678
3679         for (int i = 0; i <32; i++)
3680                 strcpy(blog2[i],"");
3681
3682         strcpy(moo,"");
3683         for (int i = 0; i <10; i++)
3684         {
3685                 if (!parameters[i])
3686                 {
3687                         parameters[i] = moo;
3688                 }
3689         }
3690         if (joins)
3691         {
3692                 if (pcnt > 1) /* we have a key to copy */
3693                 {
3694                         strcpy(keystr,parameters[1]);
3695                 }
3696         }
3697
3698         if (!parameters[start])
3699         {
3700                 return 0;
3701         }
3702         if (!strchr(parameters[start],','))
3703         {
3704                 return 0;
3705         }
3706         strcpy(plist,"");
3707         for (int i = start; i <= end; i++)
3708         {
3709                 if (parameters[i])
3710                 {
3711                         strcat(plist,parameters[i]);
3712                 }
3713         }
3714
3715         j = 0;
3716         param = plist;
3717
3718         t = strlen(plist);
3719         for (int i = 0; i < t; i++)
3720         {
3721                 if (plist[i] == ',')
3722                 {
3723                         plist[i] = '\0';
3724                         strcpy(blog[j++],param);
3725                         param = plist+i+1;
3726                         if (j>20)
3727                         {
3728                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3729                                 return 1;
3730                         }
3731                 }
3732         }
3733         strcpy(blog[j++],param);
3734         total = j;
3735
3736         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3737         {
3738                 strcat(keystr,",");
3739         }
3740
3741         if ((joins) && (keystr))
3742         {
3743                 if (strchr(keystr,','))
3744                 {
3745                         j = 0;
3746                         param = keystr;
3747                         t2 = strlen(keystr);
3748                         for (int i = 0; i < t2; i++)
3749                         {
3750                                 if (keystr[i] == ',')
3751                                 {
3752                                         keystr[i] = '\0';
3753                                         strcpy(blog2[j++],param);
3754                                         param = keystr+i+1;
3755                                 }
3756                         }
3757                         strcpy(blog2[j++],param);
3758                         total2 = j;
3759                 }
3760         }
3761
3762         for (j = 0; j < total; j++)
3763         {
3764                 if (blog[j])
3765                 {
3766                         pars[0] = blog[j];
3767                 }
3768                 for (q = end; q < pcnt-1; q++)
3769                 {
3770                         if (parameters[q+1])
3771                         {
3772                                 pars[q-end+1] = parameters[q+1];
3773                         }
3774                 }
3775                 if ((joins) && (parameters[1]))
3776                 {
3777                         if (pcnt > 1)
3778                         {
3779                                 pars[1] = blog2[j];
3780                         }
3781                         else
3782                         {
3783                                 pars[1] = NULL;
3784                         }
3785                 }
3786                 /* repeatedly call the function with the hacked parameter list */
3787                 if ((joins) && (pcnt > 1))
3788                 {
3789                         if (pars[1])
3790                         {
3791                                 // pars[1] already set up and containing key from blog2[j]
3792                                 fn(pars,2,u);
3793                         }
3794                         else
3795                         {
3796                                 pars[1] = parameters[1];
3797                                 fn(pars,2,u);
3798                         }
3799                 }
3800                 else
3801                 {
3802                         fn(pars,pcnt-(end-start),u);
3803                 }
3804         }
3805
3806         return 1;
3807 }
3808
3809
3810 void handle_join(char **parameters, int pcnt, userrec *user)
3811 {
3812         chanrec* Ptr;
3813         int i = 0;
3814
3815         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3816                 return;
3817         if (parameters[0][0] == '#')
3818         {
3819                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3820         }
3821 }
3822
3823
3824 void handle_part(char **parameters, int pcnt, userrec *user)
3825 {
3826         chanrec* Ptr;
3827
3828         if (pcnt > 1)
3829         {
3830                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3831                         return;
3832                 del_channel(user,parameters[0],parameters[1],false);
3833         }
3834         else
3835         {
3836                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3837                         return;
3838                 del_channel(user,parameters[0],NULL,false);
3839         }
3840 }
3841
3842 void handle_kick(char **parameters, int pcnt, userrec *user)
3843 {
3844         chanrec* Ptr = FindChan(parameters[0]);
3845         userrec* u   = Find(parameters[1]);
3846
3847         if ((!u) || (!Ptr))
3848         {
3849                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3850                 return;
3851         }
3852
3853         if (!has_channel(u,Ptr))
3854         {
3855                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3856                 return;
3857         }
3858
3859         char reason[MAXBUF];
3860
3861         if (pcnt > 2)
3862         {
3863                 strncpy(reason,parameters[2],MAXBUF);
3864                 if (strlen(reason)>MAXKICK)
3865                 {
3866                         reason[MAXKICK-1] = '\0';
3867                 }
3868
3869                 kick_channel(user,u,Ptr,reason);
3870         }
3871         else
3872         {
3873                 strcpy(reason,user->nick);
3874                 kick_channel(user,u,Ptr,reason);
3875         }
3876
3877         // this must be propogated so that channel membership is kept in step network-wide
3878
3879         char buffer[MAXBUF];
3880         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3881         NetSendToAll(buffer);
3882 }
3883
3884
3885 void handle_die(char **parameters, int pcnt, userrec *user)
3886 {
3887         log(DEBUG,"die: %s",user->nick);
3888         if (!strcmp(parameters[0],diepass))
3889         {
3890                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3891                 sleep(DieDelay);
3892                 Exit(ERROR);
3893         }
3894         else
3895         {
3896                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3897         }
3898 }
3899
3900 void handle_restart(char **parameters, int pcnt, userrec *user)
3901 {
3902         log(DEBUG,"restart: %s",user->nick);
3903         if (!strcmp(parameters[0],restartpass))
3904         {
3905                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3906                 sleep(DieDelay);
3907                 Exit(ERROR);
3908                 /* Will finish this later when i can be arsed :) */
3909         }
3910         else
3911         {
3912                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3913         }
3914 }
3915
3916
3917 void kill_link(userrec *user,const char* r)
3918 {
3919         user_hash::iterator iter = clientlist.find(user->nick);
3920
3921         char reason[MAXBUF];
3922
3923         strncpy(reason,r,MAXBUF);
3924
3925         if (strlen(reason)>MAXQUIT)
3926         {
3927                 reason[MAXQUIT-1] = '\0';
3928         }
3929
3930         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3931         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3932         log(DEBUG,"closing fd %d",user->fd);
3933
3934         /* bugfix, cant close() a nonblocking socket (sux!) */
3935         if (user->registered == 7) {
3936                 FOREACH_MOD OnUserQuit(user);
3937                 WriteCommonExcept(user,"QUIT :%s",reason);
3938
3939                 // Q token must go to ALL servers!!!
3940                 char buffer[MAXBUF];
3941                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3942                 NetSendToAll(buffer);
3943         }
3944
3945         /* push the socket on a stack of sockets due to be closed at the next opportunity
3946          * 'Client exited' is an exception to this as it means the client side has already
3947          * closed the socket, we don't need to do it.
3948          */
3949         fd_reap.push_back(user->fd);
3950
3951         bool do_purge = false;
3952
3953         if (user->registered == 7) {
3954                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3955                 AddWhoWas(user);
3956         }
3957
3958         if (iter != clientlist.end())
3959         {
3960                 log(DEBUG,"deleting user hash value %d",iter->second);
3961                 if ((iter->second) && (user->registered == 7)) {
3962                         delete iter->second;
3963                 }
3964                 clientlist.erase(iter);
3965         }
3966
3967         if (user->registered == 7) {
3968                 purge_empty_chans();
3969         }
3970 }
3971
3972
3973 void handle_kill(char **parameters, int pcnt, userrec *user)
3974 {
3975         userrec *u = Find(parameters[0]);
3976         char killreason[MAXBUF];
3977
3978         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3979         if (u)
3980         {
3981                 if (strcmp(ServerName,u->server))
3982                 {
3983                         // remote kill
3984                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3985                         sprintf(killreason,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
3986                         WriteCommonExcept(u,"QUIT :%s",killreason);
3987                         // K token must go to ALL servers!!!
3988                         char buffer[MAXBUF];
3989                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
3990                         NetSendToAll(buffer);
3991
3992                         user_hash::iterator iter = clientlist.find(u->nick);
3993                         if (iter != clientlist.end())
3994                         {
3995                                 log(DEBUG,"deleting user hash value %d",iter->second);
3996                                 if ((iter->second) && (user->registered == 7)) {
3997                                         delete iter->second;
3998                                         }
3999                         clientlist.erase(iter);
4000                         }
4001                         purge_empty_chans();
4002                 }
4003                 else
4004                 {
4005                         // local kill
4006                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
4007                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
4008                         sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
4009                         kill_link(u,killreason);
4010                 }
4011         }
4012         else
4013         {
4014                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4015         }
4016 }
4017
4018 void handle_summon(char **parameters, int pcnt, userrec *user)
4019 {
4020         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
4021 }
4022
4023 void handle_users(char **parameters, int pcnt, userrec *user)
4024 {
4025         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
4026 }
4027
4028
4029 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
4030
4031 char* Passwd(userrec *user)
4032 {
4033         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4034         {
4035                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
4036                 {
4037                         return i->pass;
4038                 }
4039         }
4040         return "";
4041 }
4042
4043 bool IsDenied(userrec *user)
4044 {
4045         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4046         {
4047                 if (match(user->host,i->host) && (i->type == CC_DENY))
4048                 {
4049                         return true;
4050                 }
4051         }
4052         return false;
4053 }
4054
4055
4056
4057 void handle_pass(char **parameters, int pcnt, userrec *user)
4058 {
4059         // Check to make sure they havnt registered -- Fix by FCS
4060         if (user->registered == 7)
4061         {
4062                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4063                 return;
4064         }
4065         if (!strcasecmp(parameters[0],Passwd(user)))
4066         {
4067                 user->haspassed = true;
4068         }
4069 }
4070
4071 void handle_invite(char **parameters, int pcnt, userrec *user)
4072 {
4073         userrec* u = Find(parameters[0]);
4074         chanrec* c = FindChan(parameters[1]);
4075
4076         if ((!c) || (!u))
4077         {
4078                 if (!c)
4079                 {
4080                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
4081                 }
4082                 else
4083                 {
4084                         if (c->inviteonly)
4085                         {
4086                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
4087                         }
4088                 }
4089
4090                 return;
4091         }
4092
4093         if (c->inviteonly)
4094         {
4095                 if (cstatus(user,c) < STATUS_HOP)
4096                 {
4097                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
4098                         return;
4099                 }
4100         }
4101         if (has_channel(u,c))
4102         {
4103                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4104                 return;
4105         }
4106         if (!has_channel(user,c))
4107         {
4108                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4109                 return;
4110         }
4111         u->InviteTo(c->name);
4112         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4113         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4114
4115         // i token must go to ALL servers!!!
4116         char buffer[MAXBUF];
4117         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
4118         NetSendToAll(buffer);
4119 }
4120
4121 void handle_topic(char **parameters, int pcnt, userrec *user)
4122 {
4123         chanrec* Ptr;
4124
4125         if (pcnt == 1)
4126         {
4127                 if (strlen(parameters[0]) <= CHANMAX)
4128                 {
4129                         Ptr = FindChan(parameters[0]);
4130                         if (Ptr)
4131                         {
4132                                 if (Ptr->topicset)
4133                                 {
4134                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4135                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4136                                 }
4137                                 else
4138                                 {
4139                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4140                                 }
4141                         }
4142                         else
4143                         {
4144                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4145                         }
4146                 }
4147                 return;
4148         }
4149         else if (pcnt>1)
4150         {
4151                 if (strlen(parameters[0]) <= CHANMAX)
4152                 {
4153                         Ptr = FindChan(parameters[0]);
4154                         if (Ptr)
4155                         {
4156                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4157                                 {
4158                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4159                                         return;
4160                                 }
4161
4162                                 char topic[MAXBUF];
4163                                 strncpy(topic,parameters[1],MAXBUF);
4164                                 if (strlen(topic)>MAXTOPIC)
4165                                 {
4166                                         topic[MAXTOPIC-1] = '\0';
4167                                 }
4168
4169                                 strcpy(Ptr->topic,topic);
4170                                 strcpy(Ptr->setby,user->nick);
4171                                 Ptr->topicset = time(NULL);
4172                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4173
4174                                 // t token must go to ALL servers!!!
4175                                 char buffer[MAXBUF];
4176                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
4177                                 NetSendToAll(buffer);
4178                         }
4179                         else
4180                         {
4181                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4182                         }
4183                 }
4184         }
4185 }
4186
4187 /* sends out an error notice to all connected clients (not to be used
4188  * lightly!) */
4189
4190 void send_error(char *s)
4191 {
4192         log(DEBUG,"send_error: %s",s);
4193         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4194         {
4195                 if (isnick(i->second->nick))
4196                 {
4197                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4198                 }
4199                 else
4200                 {
4201                         // fix - unregistered connections receive ERROR, not NOTICE
4202                         Write(i->second->fd,"ERROR :%s",s);
4203                 }
4204         }
4205 }
4206
4207 void Error(int status)
4208 {
4209         signal (SIGALRM, SIG_IGN);
4210         signal (SIGPIPE, SIG_IGN);
4211         signal (SIGTERM, SIG_IGN);
4212         signal (SIGABRT, SIG_IGN);
4213         signal (SIGSEGV, SIG_IGN);
4214         signal (SIGURG, SIG_IGN);
4215         signal (SIGKILL, SIG_IGN);
4216         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4217         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4218         exit(status);
4219 }
4220
4221
4222 int main(int argc, char *argv[])
4223 {
4224         Start();
4225         srand(time(NULL));
4226         log(DEBUG,"*** InspIRCd starting up!");
4227         if (!FileExists(CONFIG_FILE))
4228         {
4229                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4230                 log(DEBUG,"main: no config");
4231                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4232                 Exit(ERROR);
4233         }
4234         if (argc > 1) {
4235                 if (!strcmp(argv[1],"-nofork")) {
4236                         nofork = true;
4237                 }
4238         }
4239         if (InspIRCd() == ERROR)
4240         {
4241                 log(DEBUG,"main: daemon function bailed");
4242                 printf("ERROR: could not initialise. Shutting down.\n");
4243                 Exit(ERROR);
4244         }
4245         Exit(TRUE);
4246         return 0;
4247 }
4248
4249 template<typename T> inline string ConvToStr(const T &in)
4250 {
4251         stringstream tmp;
4252         if (!(tmp << in)) return string();
4253         return tmp.str();
4254 }
4255
4256 /* re-allocates a nick in the user_hash after they change nicknames,
4257  * returns a pointer to the new user as it may have moved */
4258
4259 userrec* ReHashNick(char* Old, char* New)
4260 {
4261         user_hash::iterator newnick;
4262         user_hash::iterator oldnick = clientlist.find(Old);
4263
4264         log(DEBUG,"ReHashNick: %s %s",Old,New);
4265
4266         if (!strcasecmp(Old,New))
4267         {
4268                 log(DEBUG,"old nick is new nick, skipping");
4269                 return oldnick->second;
4270         }
4271
4272         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4273
4274         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4275
4276         clientlist[New] = new userrec();
4277         clientlist[New] = oldnick->second;
4278         /*delete oldnick->second; */
4279         clientlist.erase(oldnick);
4280
4281         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4282
4283         return clientlist[New];
4284 }
4285
4286 /* adds or updates an entry in the whowas list */
4287 void AddWhoWas(userrec* u)
4288 {
4289         user_hash::iterator iter = whowas.find(u->nick);
4290         userrec *a = new userrec();
4291         strcpy(a->nick,u->nick);
4292         strcpy(a->ident,u->ident);
4293         strcpy(a->dhost,u->dhost);
4294         strcpy(a->host,u->host);
4295         strcpy(a->fullname,u->fullname);
4296         strcpy(a->server,u->server);
4297         a->signon = u->signon;
4298
4299         /* MAX_WHOWAS:   max number of /WHOWAS items
4300          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4301          *               can be replaced by a newer one
4302          */
4303
4304         if (iter == whowas.end())
4305         {
4306                 if (whowas.size() == WHOWAS_MAX)
4307                 {
4308                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4309                         {
4310                                 // 3600 seconds in an hour ;)
4311                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4312                                 {
4313                                         delete i->second;
4314                                         i->second = a;
4315                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4316                                         return;
4317                                 }
4318                         }
4319                 }
4320                 else
4321                 {
4322                         log(DEBUG,"added fresh WHOWAS entry");
4323                         whowas[a->nick] = a;
4324                 }
4325         }
4326         else
4327         {
4328                 log(DEBUG,"updated WHOWAS entry");
4329                 delete iter->second;
4330                 iter->second = a;
4331         }
4332 }
4333
4334
4335 /* add a client connection to the sockets list */
4336 void AddClient(int socket, char* host, int port, bool iscached)
4337 {
4338         int i;
4339         int blocking = 1;
4340         char resolved[MAXBUF];
4341         string tempnick;
4342         char tn2[MAXBUF];
4343         user_hash::iterator iter;
4344
4345         tempnick = ConvToStr(socket) + "-unknown";
4346         sprintf(tn2,"%d-unknown",socket);
4347
4348         iter = clientlist.find(tempnick);
4349
4350         if (iter != clientlist.end()) return;
4351
4352         /*
4353          * It is OK to access the value here this way since we know
4354          * it exists, we just created it above.
4355          *
4356          * At NO other time should you access a value in a map or a
4357          * hash_map this way.
4358          */
4359         clientlist[tempnick] = new userrec();
4360
4361         NonBlocking(socket);
4362         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4363
4364         clientlist[tempnick]->fd = socket;
4365         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4366         strncpy(clientlist[tempnick]->host, host,160);
4367         strncpy(clientlist[tempnick]->dhost, host,160);
4368         strncpy(clientlist[tempnick]->server, ServerName,256);
4369         strncpy(clientlist[tempnick]->ident, "unknown",9);
4370         clientlist[tempnick]->registered = 0;
4371         clientlist[tempnick]->signon = time(NULL);
4372         clientlist[tempnick]->nping = time(NULL)+240;
4373         clientlist[tempnick]->lastping = 1;
4374         clientlist[tempnick]->port = port;
4375
4376         if (iscached)
4377         {
4378                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4379         }
4380         else
4381         {
4382                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4383         }
4384
4385         // set the registration timeout for this user
4386         unsigned long class_regtimeout = 90;
4387         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4388         {
4389                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4390                 {
4391                         class_regtimeout = (unsigned long)i->registration_timeout;
4392                         break;
4393                 }
4394         }
4395
4396         int class_flood = 0;
4397         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4398         {
4399                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4400                 {
4401                         class_flood = i->flood;
4402                         break;
4403                 }
4404         }
4405
4406         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4407         clientlist[tempnick]->flood = class_flood;
4408
4409         for (int i = 0; i < MAXCHANS; i++)
4410         {
4411                 clientlist[tempnick]->chans[i].channel = NULL;
4412                 clientlist[tempnick]->chans[i].uc_modes = 0;
4413         }
4414
4415         if (clientlist.size() == MAXCLIENTS)
4416                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4417 }
4418
4419 void handle_names(char **parameters, int pcnt, userrec *user)
4420 {
4421         chanrec* c;
4422
4423         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4424                 return;
4425         c = FindChan(parameters[0]);
4426         if (c)
4427         {
4428                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4429                 userlist(user,c);
4430                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4431         }
4432         else
4433         {
4434                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4435         }
4436 }
4437
4438 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4439 {
4440         userrec *dest;
4441         chanrec *chan;
4442
4443         user->idle_lastmsg = time(NULL);
4444
4445         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4446                 return;
4447         if (parameters[0][0] == '#')
4448         {
4449                 chan = FindChan(parameters[0]);
4450                 if (chan)
4451                 {
4452                         if ((chan->noexternal) && (!has_channel(user,chan)))
4453                         {
4454                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4455                                 return;
4456                         }
4457                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4458                         {
4459                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4460                                 return;
4461                         }
4462
4463                         int MOD_RESULT = 0;
4464
4465                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4466                         if (MOD_RESULT) {
4467                                 return;
4468                         }
4469
4470                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4471
4472                         // if any users of this channel are on remote servers, broadcast the packet
4473                         char buffer[MAXBUF];
4474                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4475                         NetSendToCommon(user,buffer);
4476                 }
4477                 else
4478                 {
4479                         /* no such nick/channel */
4480                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4481                 }
4482                 return;
4483         }
4484
4485         dest = Find(parameters[0]);
4486         if (dest)
4487         {
4488                 if (strcmp(dest->awaymsg,""))
4489                 {
4490                         /* auto respond with aweh msg */
4491                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4492                 }
4493
4494                 int MOD_RESULT = 0;
4495
4496                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4497                 if (MOD_RESULT) {
4498                         return;
4499                 }
4500
4501
4502
4503                 if (!strcmp(dest->server,user->server))
4504                 {
4505                         // direct write, same server
4506                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4507                 }
4508                 else
4509                 {
4510                         char buffer[MAXBUF];
4511                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4512                         NetSendToOne(dest->server,buffer);
4513                 }
4514         }
4515         else
4516         {
4517                 /* no such nick/channel */
4518                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4519         }
4520 }
4521
4522 void handle_notice(char **parameters, int pcnt, userrec *user)
4523 {
4524         userrec *dest;
4525         chanrec *chan;
4526
4527         user->idle_lastmsg = time(NULL);
4528
4529         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4530                 return;
4531         if (parameters[0][0] == '#')
4532         {
4533                 chan = FindChan(parameters[0]);
4534                 if (chan)
4535                 {
4536                         if ((chan->noexternal) && (!has_channel(user,chan)))
4537                         {
4538                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4539                                 return;
4540                         }
4541                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4542                         {
4543                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4544                                 return;
4545                         }
4546
4547                         int MOD_RESULT = 0;
4548
4549                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4550                         if (MOD_RESULT) {
4551                                 return;
4552                         }
4553
4554                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4555
4556                         // if any users of this channel are on remote servers, broadcast the packet
4557                         char buffer[MAXBUF];
4558                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4559                         NetSendToCommon(user,buffer);
4560                 }
4561                 else
4562                 {
4563                         /* no such nick/channel */
4564                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4565                 }
4566                 return;
4567         }
4568
4569         dest = Find(parameters[0]);
4570         if (dest)
4571         {
4572                 int MOD_RESULT = 0;
4573
4574                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4575                 if (MOD_RESULT) {
4576                         return;
4577                 }
4578
4579                 if (!strcmp(dest->server,user->server))
4580                 {
4581                         // direct write, same server
4582                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4583                 }
4584                 else
4585                 {
4586                         char buffer[MAXBUF];
4587                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4588                         NetSendToOne(dest->server,buffer);
4589                 }
4590         }
4591         else
4592         {
4593                 /* no such nick/channel */
4594                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4595         }
4596 }
4597
4598 char lst[MAXBUF];
4599
4600 char* chlist(userrec *user)
4601 {
4602         int i = 0;
4603         char cmp[MAXBUF];
4604
4605         log(DEBUG,"chlist: %s",user->nick);
4606         strcpy(lst,"");
4607         if (!user)
4608         {
4609                 return lst;
4610         }
4611         for (int i = 0; i != MAXCHANS; i++)
4612         {
4613                 if (user->chans[i].channel != NULL)
4614                 {
4615                         if (user->chans[i].channel->name)
4616                         {
4617                                 strcpy(cmp,user->chans[i].channel->name);
4618                                 strcat(cmp," ");
4619                                 if (!strstr(lst,cmp))
4620                                 {
4621                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4622                                         {
4623                                                 strcat(lst,cmode(user,user->chans[i].channel));
4624                                                 strcat(lst,user->chans[i].channel->name);
4625                                                 strcat(lst," ");
4626                                         }
4627                                 }
4628                         }
4629                 }
4630         }
4631         if (strlen(lst))
4632         {
4633                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4634         }
4635         return lst;
4636 }
4637
4638 void handle_info(char **parameters, int pcnt, userrec *user)
4639 {
4640         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4641         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4642         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4643         FOREACH_MOD OnInfo(user);
4644         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4645 }
4646
4647 void handle_time(char **parameters, int pcnt, userrec *user)
4648 {
4649         time_t rawtime;
4650         struct tm * timeinfo;
4651
4652         time ( &rawtime );
4653         timeinfo = localtime ( &rawtime );
4654         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4655
4656 }
4657
4658 void handle_whois(char **parameters, int pcnt, userrec *user)
4659 {
4660         userrec *dest;
4661         char *t;
4662
4663         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4664                 return;
4665         dest = Find(parameters[0]);
4666         if (dest)
4667         {
4668                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4669                 if (dest->registered == 7)
4670                 {
4671                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4672                         if ((user == dest) || (strchr(user->modes,'o')))
4673                         {
4674                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4675                         }
4676                         if (strcmp(chlist(dest),""))
4677                         {
4678                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4679                         }
4680                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4681                         if (strcmp(dest->awaymsg,""))
4682                         {
4683                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4684                         }
4685                         if (strchr(dest->modes,'o'))
4686                         {
4687                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4688                         }
4689                         FOREACH_MOD OnWhois(user,dest);
4690                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4691                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4692
4693                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4694                 }
4695                 else
4696                 {
4697                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4698                 }
4699         }
4700         else
4701         {
4702                 /* no such nick/channel */
4703                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4704         }
4705 }
4706
4707 void send_network_quit(const char* nick, const char* reason)
4708 {
4709         char buffer[MAXBUF];
4710         snprintf(buffer,MAXBUF,"Q %s :%s",nick,reason);
4711         NetSendToAll(buffer);
4712 }
4713
4714 void handle_quit(char **parameters, int pcnt, userrec *user)
4715 {
4716         user_hash::iterator iter = clientlist.find(user->nick);
4717         char* reason;
4718
4719         if (user->registered == 7)
4720         {
4721                 /* theres more to do here, but for now just close the socket */
4722                 if (pcnt == 1)
4723                 {
4724                         if (parameters[0][0] == ':')
4725                         {
4726                                 *parameters[0]++;
4727                         }
4728                         reason = parameters[0];
4729
4730                         if (strlen(reason)>MAXQUIT)
4731                         {
4732                                 reason[MAXQUIT-1] = '\0';
4733                         }
4734
4735                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4736                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4737                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4738
4739                         char buffer[MAXBUF];
4740                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4741                         NetSendToAll(buffer);
4742                 }
4743                 else
4744                 {
4745                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4746                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4747                         WriteCommonExcept(user,"QUIT :Client exited");
4748
4749                         char buffer[MAXBUF];
4750                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4751                         NetSendToAll(buffer);
4752                 }
4753                 FOREACH_MOD OnUserQuit(user);
4754                 AddWhoWas(user);
4755         }
4756
4757         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4758         fd_reap.push_back(user->fd);
4759
4760         if (iter != clientlist.end())
4761         {
4762                 clientlist.erase(iter);
4763                 log(DEBUG,"deleting user hash value %d",iter->second);
4764                 //if ((user) && (user->registered == 7)) {
4765                         //delete user;
4766                 //}
4767         }
4768
4769         if (user->registered == 7) {
4770                 purge_empty_chans();
4771         }
4772 }
4773
4774 void handle_who(char **parameters, int pcnt, userrec *user)
4775 {
4776         chanrec* Ptr = NULL;
4777
4778         /* theres more to do here, but for now just close the socket */
4779         if (pcnt == 1)
4780         {
4781                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4782                 {
4783                         if (user->chans[0].channel)
4784                         {
4785                                 Ptr = user->chans[0].channel;
4786                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4787                                 {
4788                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4789                                         {
4790                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4791                                         }
4792                                 }
4793                         }
4794                         if (Ptr)
4795                         {
4796                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4797                         }
4798                         else
4799                         {
4800                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4801                         }
4802                         return;
4803                 }
4804                 if (parameters[0][0] == '#')
4805                 {
4806                         Ptr = FindChan(parameters[0]);
4807                         if (Ptr)
4808                         {
4809                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4810                                 {
4811                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4812                                         {
4813                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4814                                         }
4815                                 }
4816                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4817                         }
4818                         else
4819                         {
4820                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4821                         }
4822                 }
4823                 else
4824                 {
4825                         userrec* u = Find(parameters[0]);
4826                         WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, u->nick, u->ident, u->dhost, u->server, u->nick, u->fullname);
4827                 }
4828         }
4829         if (pcnt == 2)
4830         {
4831                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4832                 {
4833                         Ptr = user->chans[0].channel;
4834                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4835                         {
4836                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4837                                 {
4838                                         if (strchr(i->second->modes,'o'))
4839                                         {
4840                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4841                                         }
4842                                 }
4843                         }
4844                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4845                         return;
4846                 }
4847         }
4848 }
4849
4850 void handle_wallops(char **parameters, int pcnt, userrec *user)
4851 {
4852         WriteWallOps(user,false,"%s",parameters[0]);
4853 }
4854
4855 void handle_list(char **parameters, int pcnt, userrec *user)
4856 {
4857         chanrec* Ptr;
4858
4859         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4860         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4861         {
4862                 if ((!i->second->c_private) && (!i->second->secret))
4863                 {
4864                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4865                 }
4866         }
4867         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4868 }
4869
4870
4871 void handle_rehash(char **parameters, int pcnt, userrec *user)
4872 {
4873         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4874         ReadConfig();
4875         FOREACH_MOD OnRehash();
4876         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4877 }
4878
4879
4880 int usercnt(void)
4881 {
4882         return clientlist.size();
4883 }
4884
4885
4886 int usercount_invisible(void)
4887 {
4888         int c = 0;
4889
4890         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4891         {
4892                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4893         }
4894         return c;
4895 }
4896
4897 int usercount_opers(void)
4898 {
4899         int c = 0;
4900
4901         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4902         {
4903                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4904         }
4905         return c;
4906 }
4907
4908 int usercount_unknown(void)
4909 {
4910         int c = 0;
4911
4912         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4913         {
4914                 if ((i->second->fd) && (i->second->registered != 7))
4915                         c++;
4916         }
4917         return c;
4918 }
4919
4920 long chancount(void)
4921 {
4922         return chanlist.size();
4923 }
4924
4925 long count_servs(void)
4926 {
4927         int c = 0;
4928         //for (int j = 0; j < 255; j++)
4929         //{
4930         //      if (servers[j] != NULL)
4931         //              c++;
4932         //}
4933         return c;
4934 }
4935
4936 long servercount(void)
4937 {
4938         return count_servs()+1;
4939 }
4940
4941 long local_count()
4942 {
4943         int c = 0;
4944         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4945         {
4946                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
4947         }
4948         return c;
4949 }
4950
4951
4952 void handle_lusers(char **parameters, int pcnt, userrec *user)
4953 {
4954         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4955         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4956         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4957         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4958         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
4959 }
4960
4961 void handle_admin(char **parameters, int pcnt, userrec *user)
4962 {
4963         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4964         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4965         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4966         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4967 }
4968
4969 void ShowMOTD(userrec *user)
4970 {
4971         if (!MOTD.size())
4972         {
4973                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4974                 return;
4975         }
4976         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4977         for (int i = 0; i != MOTD.size(); i++)
4978         {
4979                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4980         }
4981         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4982 }
4983
4984 void ShowRULES(userrec *user)
4985 {
4986         if (!RULES.size())
4987         {
4988                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4989                 return;
4990         }
4991         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4992         for (int i = 0; i != RULES.size(); i++)
4993         {
4994                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4995         }
4996         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4997 }
4998
4999 /* shows the message of the day, and any other on-logon stuff */
5000 void ConnectUser(userrec *user)
5001 {
5002         user->registered = 7;
5003         user->idle_lastmsg = time(NULL);
5004         log(DEBUG,"ConnectUser: %s",user->nick);
5005
5006         if (strcmp(Passwd(user),"") && (!user->haspassed))
5007         {
5008                 kill_link(user,"Invalid password");
5009                 return;
5010         }
5011         if (IsDenied(user))
5012         {
5013                 kill_link(user,"Unauthorised connection");
5014                 return;
5015         }
5016
5017         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
5018         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
5019         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
5020         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
5021         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
5022         WriteServ(user->fd,"005 %s :MAP KNOCK SAFELIST HCN MAXCHANNELS=20 MAXBANS=60 NICKLEN=30 TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 :are supported by this server",user->nick);
5023         WriteServ(user->fd,"005 %s :WALLCHOPS WATCH=128 SILENCE=5 MODES=13 CHANTYPES=# PREFIX=(ohv)@%c+ CHANMODES=ohvbeqa,kfL,l,psmntirRcOAQKVHGCuzN NETWORK=%s :are supported by this server",user->nick,'%',Network);
5024         ShowMOTD(user);
5025         FOREACH_MOD OnUserConnect(user);
5026         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
5027
5028         char buffer[MAXBUF];
5029         snprintf(buffer,MAXBUF,"N %d %s %s %s %s +%s %s :%s",user->age,user->nick,user->host,user->dhost,user->ident,user->modes,ServerName,user->fullname);
5030         NetSendToAll(buffer);
5031 }
5032
5033 void handle_version(char **parameters, int pcnt, userrec *user)
5034 {
5035         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
5036 }
5037
5038 void handle_ping(char **parameters, int pcnt, userrec *user)
5039 {
5040         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
5041 }
5042
5043 void handle_pong(char **parameters, int pcnt, userrec *user)
5044 {
5045         // set the user as alive so they survive to next ping
5046         user->lastping = 1;
5047 }
5048
5049 void handle_motd(char **parameters, int pcnt, userrec *user)
5050 {
5051         ShowMOTD(user);
5052 }
5053
5054 void handle_rules(char **parameters, int pcnt, userrec *user)
5055 {
5056         ShowRULES(user);
5057 }
5058
5059 void handle_user(char **parameters, int pcnt, userrec *user)
5060 {
5061         if (user->registered < 3)
5062         {
5063                 if (isident(parameters[0]) == 0) {
5064                         // This kinda Sucks, According to the RFC thou, its either this,
5065                         // or "You have already registered" :p -- Craig
5066                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
5067                 }
5068                 else {
5069                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
5070                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
5071                         strncat(user->ident,parameters[0],IDENTMAX);
5072                         strncpy(user->fullname,parameters[3],128);
5073                         user->registered = (user->registered | 1);
5074                 }
5075         }
5076         else
5077         {
5078                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5079                 return;
5080         }
5081         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5082         if (user->registered == 3)
5083         {
5084                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5085                 ConnectUser(user);
5086         }
5087 }
5088
5089 void handle_userhost(char **parameters, int pcnt, userrec *user)
5090 {
5091         char Return[MAXBUF],junk[MAXBUF];
5092         sprintf(Return,"302 %s :",user->nick);
5093         for (int i = 0; i < pcnt; i++)
5094         {
5095                 userrec *u = Find(parameters[i]);
5096                 if (u)
5097                 {
5098                         if (strchr(u->modes,'o'))
5099                         {
5100                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5101                                 strcat(Return,junk);
5102                         }
5103                         else
5104                         {
5105                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5106                                 strcat(Return,junk);
5107                         }
5108                 }
5109         }
5110         WriteServ(user->fd,Return);
5111 }
5112
5113
5114 void handle_ison(char **parameters, int pcnt, userrec *user)
5115 {
5116         char Return[MAXBUF];
5117         sprintf(Return,"303 %s :",user->nick);
5118         for (int i = 0; i < pcnt; i++)
5119         {
5120                 userrec *u = Find(parameters[i]);
5121                 if (u)
5122                 {
5123                         strcat(Return,u->nick);
5124                         strcat(Return," ");
5125                 }
5126         }
5127         WriteServ(user->fd,Return);
5128 }
5129
5130
5131 void handle_away(char **parameters, int pcnt, userrec *user)
5132 {
5133         if (pcnt)
5134         {
5135                 strcpy(user->awaymsg,parameters[0]);
5136                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5137         }
5138         else
5139         {
5140                 strcpy(user->awaymsg,"");
5141                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5142         }
5143 }
5144
5145 void handle_whowas(char **parameters, int pcnt, userrec* user)
5146 {
5147         user_hash::iterator i = whowas.find(parameters[0]);
5148
5149         if (i == whowas.end())
5150         {
5151                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5152                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5153         }
5154         else
5155         {
5156                 time_t rawtime = i->second->signon;
5157                 tm *timeinfo;
5158                 char b[MAXBUF];
5159
5160                 timeinfo = localtime(&rawtime);
5161                 strcpy(b,asctime(timeinfo));
5162                 b[strlen(b)-1] = '\0';
5163
5164                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5165                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5166                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5167         }
5168
5169 }
5170
5171 void handle_trace(char **parameters, int pcnt, userrec *user)
5172 {
5173         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5174         {
5175                 if (i->second)
5176                 {
5177                         if (isnick(i->second->nick))
5178                         {
5179                                 if (strchr(i->second->modes,'o'))
5180                                 {
5181                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5182                                 }
5183                                 else
5184                                 {
5185                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5186                                 }
5187                         }
5188                         else
5189                         {
5190                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5191                         }
5192                 }
5193         }
5194 }
5195
5196 void handle_modules(char **parameters, int pcnt, userrec *user)
5197 {
5198         for (int i = 0; i < module_names.size(); i++)
5199         {
5200                         Version V = modules[i]->GetVersion();
5201                         char modulename[MAXBUF];
5202                         strncpy(modulename,module_names[i].c_str(),256);
5203                         WriteServ(user->fd,"900 %s :0x%08lx %d.%d.%d.%d %s",user->nick,modules[i],V.Major,V.Minor,V.Revision,V.Build,CleanFilename(modulename));
5204         }
5205 }
5206
5207 // calls a handler function for a command
5208
5209 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
5210 {
5211                 for (int i = 0; i < cmdlist.size(); i++)
5212                 {
5213                         if (!strcasecmp(cmdlist[i].command,commandname))
5214                         {
5215                                 if (cmdlist[i].handler_function)
5216                                 {
5217                                         if (pcnt>=cmdlist[i].min_params)
5218                                         {
5219                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
5220                                                 {
5221                                                         cmdlist[i].handler_function(parameters,pcnt,user);
5222                                                 }
5223                                         }
5224                                 }
5225                         }
5226                 }
5227 }
5228
5229 void handle_stats(char **parameters, int pcnt, userrec *user)
5230 {
5231         if (pcnt != 1)
5232         {
5233                 return;
5234         }
5235         if (strlen(parameters[0])>1)
5236         {
5237                 /* make the stats query 1 character long */
5238                 parameters[0][1] = '\0';
5239         }
5240
5241         /* stats m (list number of times each command has been used, plus bytecount) */
5242         if (!strcasecmp(parameters[0],"m"))
5243         {
5244                 for (int i = 0; i < cmdlist.size(); i++)
5245                 {
5246                         if (cmdlist[i].handler_function)
5247                         {
5248                                 if (cmdlist[i].use_count)
5249                                 {
5250                                         /* RPL_STATSCOMMANDS */
5251                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5252                                 }
5253                         }
5254                 }
5255
5256         }
5257
5258         /* stats z (debug and memory info) */
5259         if (!strcasecmp(parameters[0],"z"))
5260         {
5261                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5262                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5263                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5264                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5265                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5266                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5267                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5268                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5269         }
5270
5271         /* stats o */
5272         if (!strcasecmp(parameters[0],"o"))
5273         {
5274                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5275                 {
5276                         char LoginName[MAXBUF];
5277                         char HostName[MAXBUF];
5278                         char OperType[MAXBUF];
5279                         ConfValue("oper","name",i,LoginName,&config_f);
5280                         ConfValue("oper","host",i,HostName,&config_f);
5281                         ConfValue("oper","type",i,OperType,&config_f);
5282                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5283                 }
5284         }
5285
5286         /* stats l (show user I/O stats) */
5287         if (!strcasecmp(parameters[0],"l"))
5288         {
5289                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5290                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5291                 {
5292                         if (isnick(i->second->nick))
5293                         {
5294                                 WriteServ(user->fd,"211 %s :%s:%d %s %d %d %d %d",user->nick,ServerName,i->second->port,i->second->nick,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
5295                         }
5296                         else
5297                         {
5298                                 WriteServ(user->fd,"211 %s :%s:%d (unknown@%d) %d %d %d %d",user->nick,ServerName,i->second->port,i->second->fd,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
5299                         }
5300
5301                 }
5302         }
5303
5304         /* stats u (show server uptime) */
5305         if (!strcasecmp(parameters[0],"u"))
5306         {
5307                 time_t current_time = 0;
5308                 current_time = time(NULL);
5309                 time_t server_uptime = current_time - startup_time;
5310                 struct tm* stime;
5311                 stime = gmtime(&server_uptime);
5312                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5313                  * Craig suggested this, and it seemed a good idea so in it went */
5314                 if (stime->tm_year > 70)
5315                 {
5316                         WriteServ(user->fd,"242 %s :Server up %d years, %d days, %.2d:%.2d:%.2d",user->nick,(stime->tm_year-70),stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
5317                 }
5318                 else
5319                 {
5320                         WriteServ(user->fd,"242 %s :Server up %d days, %.2d:%.2d:%.2d",user->nick,stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
5321                 }
5322         }
5323
5324         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5325         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5326
5327 }
5328
5329 void handle_connect(char **parameters, int pcnt, userrec *user)
5330 {
5331         char Link_ServerName[1024];
5332         char Link_IPAddr[1024];
5333         char Link_Port[1024];
5334         char Link_Pass[1024];
5335         int LinkPort;
5336         bool found = false;
5337
5338         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5339         {
5340                 if (!found)
5341                 {
5342                         ConfValue("link","name",i,Link_ServerName,&config_f);
5343                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5344                         ConfValue("link","port",i,Link_Port,&config_f);
5345                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
5346                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5347                         LinkPort = atoi(Link_Port);
5348                         if (match(Link_ServerName,parameters[0])) {
5349                                 found = true;
5350                                 break;
5351                         }
5352                 }
5353         }
5354
5355         if (!found) {
5356                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5357                 return;
5358         }
5359
5360         // TODO: Perform a check here to stop a server being linked twice!
5361
5362         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5363
5364         if (me[defaultRoute])
5365         {
5366                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
5367                 return;
5368         }
5369         else
5370         {
5371                 WriteServ(user->fd,"NOTICE %s :No default route is defined for server connections on this server. You must define a server connection to be default route so that sockets can be bound to it.",user->nick);
5372         }
5373 }
5374
5375 void DoSplitEveryone()
5376 {
5377         bool go_again = true;
5378         while (go_again)
5379         {
5380                 go_again = false;
5381                 for (int i = 0; i < 32; i++)
5382                 {
5383                         if (me[i] != NULL)
5384                         {
5385                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
5386                                 {
5387                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
5388                                         {
5389                                                 j->routes.clear();
5390                                                 j->CloseConnection();
5391                                                 me[i]->connectors.erase(j);
5392                                                 go_again = true;
5393                                                 break;
5394                                         }
5395                                 }
5396                         }
5397                 }
5398         }
5399         log(DEBUG,"Removed server. Will remove clients...");
5400         // iterate through the userlist and remove all users on this server.
5401         // because we're dealing with a mesh, we dont have to deal with anything
5402         // "down-route" from this server (nice huh)
5403         go_again = true;
5404         char reason[MAXBUF];
5405         while (go_again)
5406         {
5407                 go_again = false;
5408                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
5409                 {
5410                         if (strcasecmp(u->second->server,ServerName))
5411                         {
5412                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
5413                                 kill_link(u->second,reason);
5414                                 go_again = true;
5415                                 break;
5416                         }
5417                 }
5418         }
5419 }
5420
5421
5422
5423 void handle_squit(char **parameters, int pcnt, userrec *user)
5424 {
5425         // send out an squit across the mesh and then clear the server list (for local squit)
5426         if (!pcnt)
5427         {
5428                 WriteOpers("SQUIT command issued by %s",user->nick);
5429                 char buffer[MAXBUF];
5430                 snprintf(buffer,MAXBUF,"& %s",ServerName);
5431                 NetSendToAll(buffer);
5432                 DoSplitEveryone();
5433         }
5434         else
5435         {
5436                 WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet.");
5437         }
5438 }
5439
5440 char islast(const char* s)
5441 {
5442         char c = '`';
5443         for (int j = 0; j < 32; j++)
5444         {
5445                 if (me[j] != NULL)
5446                 {
5447                         for (int k = 0; k < me[j]->connectors.size(); k++)
5448                         {
5449                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
5450                                 {
5451                                         c = '|';
5452                                 }
5453                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
5454                                 {
5455                                         c = '`';
5456                                 }
5457                         }
5458                 }
5459         }
5460         return c;
5461 }
5462
5463 long map_count(const char* s)
5464 {
5465         int c = 0;
5466         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
5467         {
5468                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
5469         }
5470         return c;
5471 }
5472
5473 void handle_links(char **parameters, int pcnt, userrec *user)
5474 {
5475         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5476         for (int j = 0; j < 32; j++)
5477         {
5478                 if (me[j] != NULL)
5479                 {
5480                         for (int k = 0; k < me[j]->connectors.size(); k++)
5481                         {
5482                                 WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,me[j]->connectors[k].GetServerName().c_str(),ServerName,me[j]->connectors[k].GetDescription().c_str());
5483                         }
5484                 }
5485         }
5486         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5487 }
5488
5489 void handle_map(char **parameters, int pcnt, userrec *user)
5490 {
5491         char line[MAXBUF];
5492         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
5493         while (strlen(line) < 50)
5494                 strcat(line," ");
5495         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
5496         for (int j = 0; j < 32; j++)
5497         {
5498                 if (me[j] != NULL)
5499                 {
5500                         for (int k = 0; k < me[j]->connectors.size(); k++)
5501                         {
5502                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
5503                                 while (strlen(line) < 50)
5504                                         strcat(line," ");
5505                                 WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(me[j]->connectors[k].GetServerName().c_str()),(float)(((float)map_count(me[j]->connectors[k].GetServerName().c_str())/(float)usercnt())*100));
5506                         }
5507                 }
5508         }
5509         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5510 }
5511
5512
5513 void handle_oper(char **parameters, int pcnt, userrec *user)
5514 {
5515         char LoginName[MAXBUF];
5516         char Password[MAXBUF];
5517         char OperType[MAXBUF];
5518         char TypeName[MAXBUF];
5519         char Hostname[MAXBUF];
5520         int i,j;
5521
5522         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5523         {
5524                 ConfValue("oper","name",i,LoginName,&config_f);
5525                 ConfValue("oper","password",i,Password,&config_f);
5526                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5527                 {
5528                         /* correct oper credentials */
5529                         ConfValue("oper","type",i,OperType,&config_f);
5530                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5531                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5532                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5533                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5534                         {
5535                                 ConfValue("type","name",j,TypeName,&config_f);
5536                                 if (!strcmp(TypeName,OperType))
5537                                 {
5538                                         /* found this oper's opertype */
5539                                         ConfValue("type","host",j,Hostname,&config_f);
5540                                         ChangeDisplayedHost(user,Hostname);
5541                                 }
5542                         }
5543                         if (!strchr(user->modes,'o'))
5544                         {
5545                                 strcat(user->modes,"o");
5546                         }
5547                         FOREACH_MOD OnOper(user);
5548                         return;
5549                 }
5550         }
5551         /* no such oper */
5552         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5553         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5554 }
5555
5556 void handle_nick(char **parameters, int pcnt, userrec *user)
5557 {
5558         if (pcnt < 1)
5559         {
5560                 log(DEBUG,"not enough params for handle_nick");
5561                 return;
5562         }
5563         if (!parameters[0])
5564         {
5565                 log(DEBUG,"invalid parameter passed to handle_nick");
5566                 return;
5567         }
5568         if (!strlen(parameters[0]))
5569         {
5570                 log(DEBUG,"zero length new nick passed to handle_nick");
5571                 return;
5572         }
5573         if (!user)
5574         {
5575                 log(DEBUG,"invalid user passed to handle_nick");
5576                 return;
5577         }
5578         if (!user->nick)
5579         {
5580                 log(DEBUG,"invalid old nick passed to handle_nick");
5581                 return;
5582         }
5583         if (!strcasecmp(user->nick,parameters[0]))
5584         {
5585                 log(DEBUG,"old nick is new nick, skipping");
5586                 return;
5587         }
5588         else
5589         {
5590                 if (strlen(parameters[0]) > 1)
5591                 {
5592                         if (parameters[0][0] == ':')
5593                         {
5594                                 *parameters[0]++;
5595                         }
5596                 }
5597                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5598                 {
5599                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5600                         return;
5601                 }
5602         }
5603         if (isnick(parameters[0]) == 0)
5604         {
5605                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5606                 return;
5607         }
5608
5609         if (user->registered == 7)
5610         {
5611                 WriteCommon(user,"NICK %s",parameters[0]);
5612
5613                 // Q token must go to ALL servers!!!
5614                 char buffer[MAXBUF];
5615                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5616                 NetSendToAll(buffer);
5617
5618         }
5619
5620         /* change the nick of the user in the users_hash */
5621         user = ReHashNick(user->nick, parameters[0]);
5622         /* actually change the nick within the record */
5623         if (!user) return;
5624         if (!user->nick) return;
5625
5626         strncpy(user->nick, parameters[0],NICKMAX);
5627
5628         log(DEBUG,"new nick set: %s",user->nick);
5629
5630         if (user->registered < 3)
5631                 user->registered = (user->registered | 2);
5632         if (user->registered == 3)
5633         {
5634                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5635                 ConnectUser(user);
5636         }
5637         log(DEBUG,"exit nickchange: %s",user->nick);
5638 }
5639
5640 void force_nickchange(userrec* user,const char* newnick)
5641 {
5642         char nick[MAXBUF];
5643         strcpy(nick,"");
5644
5645         if (user)
5646         {
5647                 if (newnick)
5648                 {
5649                         strncpy(nick,newnick,MAXBUF);
5650                 }
5651                 if (user->registered == 7)
5652                 {
5653                         char* pars[1];
5654                         pars[0] = nick;
5655                         handle_nick(pars,1,user);
5656                 }
5657         }
5658 }
5659
5660
5661 int process_parameters(char **command_p,char *parameters)
5662 {
5663         int i = 0;
5664         int j = 0;
5665         int q = 0;
5666         q = strlen(parameters);
5667         if (!q)
5668         {
5669                 /* no parameters, command_p invalid! */
5670                 return 0;
5671         }
5672         if (parameters[0] == ':')
5673         {
5674                 command_p[0] = parameters+1;
5675                 return 1;
5676         }
5677         if (q)
5678         {
5679                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5680                 {
5681                         /* only one parameter */
5682                         command_p[0] = parameters;
5683                         if (parameters[0] == ':')
5684                         {
5685                                 if (strchr(parameters,' ') != NULL)
5686                                 {
5687                                         command_p[0]++;
5688                                 }
5689                         }
5690                         return 1;
5691                 }
5692         }
5693         command_p[j++] = parameters;
5694         for (int i = 0; i <= q; i++)
5695         {
5696                 if (parameters[i] == ' ')
5697                 {
5698                         command_p[j++] = parameters+i+1;
5699                         parameters[i] = '\0';
5700                         if (command_p[j-1][0] == ':')
5701                         {
5702                                 *command_p[j-1]++; /* remove dodgy ":" */
5703                                 break;
5704                                 /* parameter like this marks end of the sequence */
5705                         }
5706                 }
5707         }
5708         return j; /* returns total number of items in the list */
5709 }
5710
5711 void process_command(userrec *user, char* cmd)
5712 {
5713         char *parameters;
5714         char *command;
5715         char *command_p[127];
5716         char p[MAXBUF], temp[MAXBUF];
5717         int i, j, items, cmd_found;
5718
5719         for (int i = 0; i < 127; i++)
5720                 command_p[i] = NULL;
5721
5722         if (!user)
5723         {
5724                 return;
5725         }
5726         if (!cmd)
5727         {
5728                 return;
5729         }
5730         if (!strcmp(cmd,""))
5731         {
5732                 return;
5733         }
5734
5735         int total_params = 0;
5736         if (strlen(cmd)>2)
5737         {
5738                 for (int q = 0; q < strlen(cmd)-1; q++)
5739                 {
5740                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5741                         {
5742                                 total_params++;
5743                                 // found a 'trailing', we dont count them after this.
5744                                 break;
5745                         }
5746                         if (cmd[q] == ' ')
5747                                 total_params++;
5748                 }
5749         }
5750
5751         // another phidjit bug...
5752         if (total_params > 126)
5753         {
5754                 kill_link(user,"Protocol violation (1)");
5755                 return;
5756         }
5757
5758         strcpy(temp,cmd);
5759
5760         std::string tmp = cmd;
5761         for (int i = 0; i <= MODCOUNT; i++)
5762         {
5763                 std::string oldtmp = tmp;
5764                 modules[i]->OnServerRaw(tmp,true);
5765                 if (oldtmp != tmp)
5766                 {
5767                         log(DEBUG,"A Module changed the input string!");
5768                         log(DEBUG,"New string: %s",tmp.c_str());
5769                         log(DEBUG,"Old string: %s",oldtmp.c_str());
5770                         break;
5771                 }
5772         }
5773         strncpy(cmd,tmp.c_str(),MAXBUF);
5774         strcpy(temp,cmd);
5775
5776         if (!strchr(cmd,' '))
5777         {
5778                 /* no parameters, lets skip the formalities and not chop up
5779                  * the string */
5780                 log(DEBUG,"About to preprocess command with no params");
5781                 items = 0;
5782                 command_p[0] = NULL;
5783                 parameters = NULL;
5784                 for (int i = 0; i <= strlen(cmd); i++)
5785                 {
5786                         cmd[i] = toupper(cmd[i]);
5787                 }
5788                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5789                 command = cmd;
5790         }
5791         else
5792         {
5793                 strcpy(cmd,"");
5794                 j = 0;
5795                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5796                 for (int i = 0; i < strlen(temp); i++)
5797                 {
5798                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5799                         {
5800                                 cmd[j++] = temp[i];
5801                                 cmd[j] = 0;
5802                         }
5803                 }
5804                 /* split the full string into a command plus parameters */
5805                 parameters = p;
5806                 strcpy(p," ");
5807                 command = cmd;
5808                 if (strchr(cmd,' '))
5809                 {
5810                         for (int i = 0; i <= strlen(cmd); i++)
5811                         {
5812                                 /* capitalise the command ONLY, leave params intact */
5813                                 cmd[i] = toupper(cmd[i]);
5814                                 /* are we nearly there yet?! :P */
5815                                 if (cmd[i] == ' ')
5816                                 {
5817                                         command = cmd;
5818                                         parameters = cmd+i+1;
5819                                         cmd[i] = '\0';
5820                                         break;
5821                                 }
5822                         }
5823                 }
5824                 else
5825                 {
5826                         for (int i = 0; i <= strlen(cmd); i++)
5827                         {
5828                                 cmd[i] = toupper(cmd[i]);
5829                         }
5830                 }
5831
5832         }
5833         cmd_found = 0;
5834
5835         if (strlen(command)>MAXCOMMAND)
5836         {
5837                 kill_link(user,"Protocol violation (2)");
5838                 return;
5839         }
5840
5841         for (int x = 0; x < strlen(command); x++)
5842         {
5843                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5844                 {
5845                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5846                         {
5847                                 if (!strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5848                                 {
5849                                         kill_link(user,"Protocol violation (3)");
5850                                         return;
5851                                 }
5852                         }
5853                 }
5854         }
5855
5856         for (int i = 0; i != cmdlist.size(); i++)
5857         {
5858                 if (strcmp(cmdlist[i].command,""))
5859                 {
5860                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5861                         {
5862                                 log(DEBUG,"Found matching command");
5863
5864                                 if (parameters)
5865                                 {
5866                                         if (strcmp(parameters,""))
5867                                         {
5868                                                 items = process_parameters(command_p,parameters);
5869                                         }
5870                                         else
5871                                         {
5872                                                 items = 0;
5873                                                 command_p[0] = NULL;
5874                                         }
5875                                 }
5876                                 else
5877                                 {
5878                                         items = 0;
5879                                         command_p[0] = NULL;
5880                                 }
5881
5882                                 if (user)
5883                                 {
5884                                         log(DEBUG,"Processing command");
5885
5886                                         /* activity resets the ping pending timer */
5887                                         user->nping = time(NULL) + 120;
5888                                         if ((items) < cmdlist[i].min_params)
5889                                         {
5890                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5891                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5892                                                 return;
5893                                         }
5894                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5895                                         {
5896                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5897                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5898                                                 cmd_found = 1;
5899                                                 return;
5900                                         }
5901                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5902                                          * deny command! */
5903                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5904                                         {
5905                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5906                                                 {
5907                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5908                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5909                                                         return;
5910                                                 }
5911                                         }
5912                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5913                                         {
5914                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5915                                                 if (cmdlist[i].handler_function)
5916                                                 {
5917                                                         /* ikky /stats counters */
5918                                                         if (temp)
5919                                                         {
5920                                                                 if (user)
5921                                                                 {
5922                                                                         user->bytes_in += strlen(temp);
5923                                                                         user->cmds_in++;
5924                                                                 }
5925                                                                 cmdlist[i].use_count++;
5926                                                                 cmdlist[i].total_bytes+=strlen(temp);
5927                                                         }
5928
5929                                                         /* WARNING: nothing may come after the
5930                                                          * command handler call, as the handler
5931                                                          * may free the user structure! */
5932
5933                                                         cmdlist[i].handler_function(command_p,items,user);
5934                                                 }
5935                                                 return;
5936                                         }
5937                                         else
5938                                         {
5939                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5940                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5941                                                 return;
5942                                         }
5943                                 }
5944                                 cmd_found = 1;
5945                         }
5946                 }
5947         }
5948         if ((!cmd_found) && (user))
5949         {
5950                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5951                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5952         }
5953 }
5954
5955
5956 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5957 {
5958         command_t comm;
5959         /* create the command and push it onto the table */
5960         strcpy(comm.command,cmd);
5961         comm.handler_function = f;
5962         comm.flags_needed = flags;
5963         comm.min_params = minparams;
5964         comm.use_count = 0;
5965         comm.total_bytes = 0;
5966         cmdlist.push_back(comm);
5967         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5968 }
5969
5970 void SetupCommandTable(void)
5971 {
5972         createcommand("USER",handle_user,0,4);
5973         createcommand("NICK",handle_nick,0,1);
5974         createcommand("QUIT",handle_quit,0,0);
5975         createcommand("VERSION",handle_version,0,0);
5976         createcommand("PING",handle_ping,0,1);
5977         createcommand("PONG",handle_pong,0,1);
5978         createcommand("ADMIN",handle_admin,0,0);
5979         createcommand("PRIVMSG",handle_privmsg,0,2);
5980         createcommand("INFO",handle_info,0,0);
5981         createcommand("TIME",handle_time,0,0);
5982         createcommand("WHOIS",handle_whois,0,1);
5983         createcommand("WALLOPS",handle_wallops,'o',1);
5984         createcommand("NOTICE",handle_notice,0,2);
5985         createcommand("JOIN",handle_join,0,1);
5986         createcommand("NAMES",handle_names,0,1);
5987         createcommand("PART",handle_part,0,1);
5988         createcommand("KICK",handle_kick,0,2);
5989         createcommand("MODE",handle_mode,0,1);
5990         createcommand("TOPIC",handle_topic,0,1);
5991         createcommand("WHO",handle_who,0,1);
5992         createcommand("MOTD",handle_motd,0,0);
5993         createcommand("RULES",handle_rules,0,0);
5994         createcommand("OPER",handle_oper,0,2);
5995         createcommand("LIST",handle_list,0,0);
5996         createcommand("DIE",handle_die,'o',1);
5997         createcommand("RESTART",handle_restart,'o',1);
5998         createcommand("KILL",handle_kill,'o',2);
5999         createcommand("REHASH",handle_rehash,'o',0);
6000         createcommand("LUSERS",handle_lusers,0,0);
6001         createcommand("STATS",handle_stats,0,1);
6002         createcommand("USERHOST",handle_userhost,0,1);
6003         createcommand("AWAY",handle_away,0,0);
6004         createcommand("ISON",handle_ison,0,0);
6005         createcommand("SUMMON",handle_summon,0,0);
6006         createcommand("USERS",handle_users,0,0);
6007         createcommand("INVITE",handle_invite,0,2);
6008         createcommand("PASS",handle_pass,0,1);
6009         createcommand("TRACE",handle_trace,'o',0);
6010         createcommand("WHOWAS",handle_whowas,0,1);
6011         createcommand("CONNECT",handle_connect,'o',1);
6012         createcommand("SQUIT",handle_squit,'o',0);
6013         createcommand("MODULES",handle_modules,'o',0);
6014         createcommand("LINKS",handle_links,0,0);
6015         createcommand("MAP",handle_map,0,0);
6016 }
6017
6018 void process_buffer(const char* cmdbuf,userrec *user)
6019 {
6020         if (!user)
6021         {
6022                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
6023                 return;
6024         }
6025         char cmd[MAXBUF];
6026         int i;
6027         if (!cmdbuf)
6028         {
6029                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
6030                 return;
6031         }
6032         if (!strcmp(cmdbuf,""))
6033         {
6034                 return;
6035         }
6036         strncpy(cmd,cmdbuf,MAXBUF);
6037         if (!strcmp(cmd,""))
6038         {
6039                 return;
6040         }
6041         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
6042         {
6043                 cmd[strlen(cmd)-1] = '\0';
6044         }
6045         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
6046         {
6047                 cmd[strlen(cmd)-1] = '\0';
6048         }
6049         if (!strcmp(cmd,""))
6050         {
6051                 return;
6052         }
6053         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
6054         tidystring(cmd);
6055         if ((user) && (cmd))
6056         {
6057                 process_command(user,cmd);
6058         }
6059 }
6060
6061 void DoSync(serverrec* serv, char* udp_host)
6062 {
6063         char data[MAXBUF];
6064         // send start of sync marker: Y <timestamp>
6065         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
6066         // except the ones its receiving it from.
6067         snprintf(data,MAXBUF,"Y %d",time(NULL));
6068         serv->SendPacket(data,udp_host);
6069         // send users and channels
6070         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
6071         {
6072                 snprintf(data,MAXBUF,"N %d %s %s %s %s +%s %s :%s",u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->modes,u->second->server,u->second->fullname);
6073                 serv->SendPacket(data,udp_host);
6074                 if (strcmp(chlist(u->second),""))
6075                 {
6076                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
6077                         serv->SendPacket(data,udp_host);
6078                 }
6079         }
6080         // send channel modes, topics etc...
6081         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
6082         {
6083                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
6084                 serv->SendPacket(data,udp_host);
6085                 if (strcmp(c->second->topic,""))
6086                 {
6087                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
6088                         serv->SendPacket(data,udp_host);
6089                 }
6090                 // send current banlist
6091
6092                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
6093                 {
6094                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
6095                         serv->SendPacket(data,udp_host);
6096                 }
6097         }
6098         // send end of sync marker: E <timestamp>
6099         snprintf(data,MAXBUF,"F %d",time(NULL));
6100         serv->SendPacket(data,udp_host);
6101         // ircd sends its serverlist after the end of sync here
6102 }
6103
6104
6105 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6106 {
6107         char* src = strtok(params," ");
6108         char* dest = strtok(NULL," :");
6109         char* text = strtok(NULL,"\r\n");
6110         text++;
6111
6112         userrec* user = Find(src);
6113         if (user)
6114         {
6115                 userrec* dst = Find(dest);
6116
6117                 if (dst)
6118                 {
6119                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
6120                 }
6121                 else
6122                 {
6123                         chanrec* d = FindChan(dest);
6124                         if (d)
6125                         {
6126                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
6127                         }
6128                 }
6129         }
6130
6131 }
6132
6133
6134 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6135 {
6136         char* src = strtok(params," ");
6137         char* dest = strtok(NULL," :");
6138         char* text = strtok(NULL,"\r\n");
6139         text++;
6140
6141         userrec* user = Find(src);
6142         if (user)
6143         {
6144                 userrec* dst = Find(dest);
6145
6146                 if (dst)
6147                 {
6148                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
6149                 }
6150                 else
6151                 {
6152                         chanrec* d = FindChan(dest);
6153                         if (d)
6154                         {
6155                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
6156                         }
6157                 }
6158         }
6159
6160 }
6161
6162 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6163 {
6164         char* nick = strtok(params," ");
6165         char* from = strtok(NULL," ");
6166         char* channel = strtok(NULL," ");
6167         userrec* u = Find(nick);
6168         userrec* user = Find(from);
6169         chanrec* c = FindChan(channel);
6170         if ((c) && (u) && (user))
6171         {
6172                 u->InviteTo(c->name);
6173                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
6174         }
6175 }
6176
6177 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6178 {
6179         char* setby = strtok(params," ");
6180         char* channel = strtok(NULL," :");
6181         char* topic = strtok(NULL,"\r\n");
6182         topic++;
6183         userrec* u = Find(setby);
6184         chanrec* c = FindChan(channel);
6185         if ((c) && (u))
6186         {
6187                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
6188                 strncpy(c->topic,topic,MAXTOPIC);
6189                 strncpy(c->setby,u->nick,NICKMAX);
6190         }
6191 }
6192
6193
6194 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6195 {
6196         char* tm = strtok(params," ");
6197         char* setby = strtok(NULL," ");
6198         char* channel = strtok(NULL," :");
6199         char* topic = strtok(NULL,"\r\n");
6200         topic++;
6201         time_t TS = atoi(tm);
6202         chanrec* c = FindChan(channel);
6203         if (c)
6204         {
6205                 // in the case of topics and TS, the *NEWER*
6206                 if (TS <= c->topicset)
6207                 {
6208                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6209                         strncpy(c->topic,topic,MAXTOPIC);
6210                         strncpy(c->setby,setby,NICKMAX);
6211                 }
6212         }
6213 }
6214
6215 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6216 {
6217         char* pars[128];
6218         char original[MAXBUF],target[MAXBUF];
6219         strncpy(original,params,MAXBUF);
6220         int index = 0;
6221         char* parameter = strtok(params," ");
6222         strncpy(target,parameter,MAXBUF);
6223         while (parameter)
6224         {
6225                 pars[index++] = parameter;
6226                 parameter = strtok(NULL," ");
6227         }
6228         merge_mode(pars,index);
6229         if (FindChan(target))
6230         {
6231                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6232         }
6233         if (Find(target))
6234         {
6235                 WriteTo(NULL,Find(target),"MODE %s",original);
6236         }
6237 }
6238
6239 // m is modes set by users only (not servers) valid targets are channels or users.
6240
6241 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6242 {
6243         // m blah #chatspike +b *!test@*4
6244         char* pars[128];
6245         char original[MAXBUF];
6246         strncpy(original,params,MAXBUF);
6247
6248         if (!strchr(params,' '))
6249         {
6250                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6251                 return;
6252         }
6253
6254         int index = 0;
6255
6256         char* src = strtok(params," ");
6257         userrec* user = Find(src);
6258
6259         if (user)
6260         {
6261                 log(DEBUG,"Found user: %s",user->nick);
6262                 char* parameter = strtok(NULL," ");
6263                 while (parameter)
6264                 {
6265                         pars[index++] = parameter;
6266                         parameter = strtok(NULL," ");
6267                 }
6268
6269                 log(DEBUG,"Calling merge_mode2");
6270                 merge_mode2(pars,index,user);
6271         }
6272 }
6273
6274
6275 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6276 {
6277         char* nick = strtok(params," ");
6278         char* channel = strtok(NULL," :");
6279         char* reason = strtok(NULL,"\r\n");
6280         userrec* user = Find(nick);
6281         reason++;
6282         if (user)
6283         {
6284                 if (strcmp(reason,""))
6285                 {
6286                         del_channel(user,channel,reason,true);
6287                 }
6288                 else
6289                 {
6290                         del_channel(user,channel,NULL,true);
6291                 }
6292         }
6293 }
6294
6295 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6296 {
6297         char* src = strtok(params," ");
6298         char* nick = strtok(NULL," :");
6299         char* reason = strtok(NULL,"\r\n");
6300         char kreason[MAXBUF];
6301         reason++;
6302
6303         userrec* u = Find(nick);
6304         userrec* user = Find(src);
6305
6306         if ((user) && (u))
6307         {
6308                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
6309                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
6310                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
6311                 kill_link(u,kreason);
6312         }
6313 }
6314
6315 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6316 {
6317         char* nick = strtok(params," :");
6318         char* reason = strtok(NULL,"\r\n");
6319         reason++;
6320
6321         userrec* user = Find(nick);
6322
6323         if (user)
6324         {
6325                 if (strlen(reason)>MAXQUIT)
6326                 {
6327                         reason[MAXQUIT-1] = '\0';
6328                 }
6329
6330
6331                 WriteCommonExcept(user,"QUIT :%s",reason);
6332
6333                 user_hash::iterator iter = clientlist.find(user->nick);
6334
6335                 if (iter != clientlist.end())
6336                 {
6337                         log(DEBUG,"deleting user hash value %d",iter->second);
6338                         if ((iter->second) && (user->registered == 7)) {
6339                                 delete iter->second;
6340                         }
6341                         clientlist.erase(iter);
6342                 }
6343
6344                 purge_empty_chans();
6345         }
6346 }
6347
6348 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6349 {
6350         char* oldnick = strtok(params," ");
6351         char* newnick = strtok(NULL," ");
6352
6353         userrec* user = Find(oldnick);
6354
6355         if (user)
6356         {
6357                 WriteCommon(user,"NICK %s",newnick);
6358                 user = ReHashNick(user->nick, newnick);
6359                 if (!user) return;
6360                 if (!user->nick) return;
6361                 strncpy(user->nick, newnick,NICKMAX);
6362                 log(DEBUG,"new nick set: %s",user->nick);
6363         }
6364 }
6365
6366 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6367 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6368 {
6369         char* src = strtok(params," ");
6370         char* dest = strtok(NULL," ");
6371         char* channel = strtok(NULL," :");
6372         char* reason = strtok(NULL,"\r\n");
6373         reason++;
6374         userrec* s = Find(src);
6375         userrec* d = Find(dest);
6376         chanrec* c = FindChan(channel);
6377         if ((s) && (d) && (c))
6378         {
6379                 kick_channel(s,d,c,reason);
6380         }
6381 }
6382
6383 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6384 {
6385         char* who = strtok(params," :");
6386         char* text = strtok(NULL,"\r\n");
6387         text++;
6388         userrec* s = Find(who);
6389         if (s)
6390         {
6391                 WriteWallOps(s,true,text);
6392         }
6393 }
6394
6395
6396 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6397 {
6398         char* tm = strtok(params," ");
6399         char* nick = strtok(NULL," ");
6400         char* host = strtok(NULL," ");
6401         char* dhost = strtok(NULL," ");
6402         char* ident = strtok(NULL," ");
6403         char* modes = strtok(NULL," ");
6404         char* server = strtok(NULL," :");
6405         char* gecos = strtok(NULL,"\r\n");
6406         gecos++;
6407         modes++;
6408         time_t TS = atoi(tm);
6409         user_hash::iterator iter = clientlist.find(nick);
6410         if (iter != clientlist.end())
6411         {
6412                 // nick collision
6413                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6414                 char str[MAXBUF];
6415                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6416                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6417                 kill_link(iter->second,str);
6418         }
6419         clientlist[nick] = new userrec();
6420         // remote users have an fd of -1. This is so that our Write abstraction
6421         // routines know to route any messages to this record away to whatever server
6422         // theyre on.
6423         clientlist[nick]->fd = -1;
6424         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6425         strncpy(clientlist[nick]->host, host,160);
6426         strncpy(clientlist[nick]->dhost, dhost,160);
6427         strncpy(clientlist[nick]->server, server,256);
6428         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
6429         strncpy(clientlist[nick]->fullname, gecos,128);
6430         clientlist[nick]->signon = TS;
6431         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6432         clientlist[nick]->lastping = 1;
6433         clientlist[nick]->port = 0; // so is this...
6434         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6435         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6436         for (int i = 0; i < MAXCHANS; i++)
6437         {
6438                 clientlist[nick]->chans[i].channel = NULL;
6439                 clientlist[nick]->chans[i].uc_modes = 0;
6440         }
6441 }
6442
6443 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6444 {
6445         long tdiff = time(NULL) - atoi(params);
6446         if (tdiff)
6447                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6448 }
6449
6450 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6451 {
6452         char* nick = strtok(params," :");
6453         char* gecos = strtok(NULL,"\r\n");
6454
6455         userrec* user = Find(nick);
6456
6457         if (user)
6458                 strncpy(user->fullname,gecos,MAXBUF);
6459 }
6460
6461 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6462 {
6463         char* nick = strtok(params," :");
6464         char* host = strtok(NULL,"\r\n");
6465
6466         userrec* user = Find(nick);
6467
6468         if (user)
6469                 strncpy(user->dhost,host,160);
6470 }
6471
6472 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6473 {
6474         // %s %s %d %d
6475         // + test3.chatspike.net 7010 -2016508415
6476         char* servername = strtok(params," ");
6477         char* ipaddr = strtok(NULL," ");
6478         char* ipport = strtok(NULL," ");
6479         char* cookie = strtok(NULL," ");
6480         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
6481
6482
6483         bool conn_already = false;
6484         for (int i = 0; i < 32; i++)
6485         {
6486                 if (me[i] != NULL)
6487                 {
6488                         for (int j = 0; j < me[i]->connectors.size(); j++)
6489                         {
6490                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
6491                                 {
6492                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
6493                                         {
6494                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
6495                                                 conn_already = true;
6496                                         }
6497                                 }
6498                         }
6499                 }
6500         }
6501         if (!conn_already)
6502                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
6503 }
6504
6505 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6506 {
6507         char* server = strtok(params," ");
6508         char* data = strtok(NULL,"\r\n");
6509         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
6510         NetSendToOne(server,data);
6511 }
6512
6513 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6514 {
6515         // IMPORTANT NOTE
6516         // The J token currently has no timestamp - this needs looking at
6517         // because it will allow splitriding.
6518         char* nick = strtok(params," ");
6519         char* channel = strtok(NULL," ");
6520         userrec* user = Find(nick);
6521         while (channel)
6522         {
6523                 if ((user != NULL) && (strcmp(channel,"")))
6524                 {
6525                         char privilage = '\0';
6526                         if (channel[0] != '#')
6527                         {
6528                                 privilage = channel[0];
6529                                 channel++;
6530                         }
6531                         add_channel(user,channel,"",true);
6532
6533                         // now work out the privilages they should have on each channel
6534                         // and send the appropriate servermodes.
6535                         for (int i = 0; i != MAXCHANS; i++)
6536                         {
6537                                 if (user->chans[i].channel)
6538                                 {
6539                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6540                                         {
6541                                                 if (privilage == '@')
6542                                                 {
6543                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6544                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6545                                                 }
6546                                                 if (privilage == '%')
6547                                                 {
6548                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6549                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6550                                                 }
6551                                                 if (privilage == '+')
6552                                                 {
6553                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6554                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6555                                                 }
6556                                         }
6557                                 }
6558                         }
6559
6560                 }
6561                 channel = strtok(NULL," ");
6562         }
6563 }
6564
6565 void NetSendMyRoutingTable()
6566 {
6567         // send out a line saying what is reachable to us.
6568         // E.g. if A is linked to B C and D, send out:
6569         // $ A B C D
6570         // if its only linked to B and D send out:
6571         // $ A B D
6572         // if it has no links, dont even send out the line at all.
6573         char buffer[MAXBUF];
6574         sprintf(buffer,"$ %s",ServerName);
6575         bool sendit = false;
6576         for (int i = 0; i < 32; i++)
6577         {
6578                 if (me[i] != NULL)
6579                 {
6580                         for (int j = 0; j < me[i]->connectors.size(); j++)
6581                         {
6582                                 if (me[i]->connectors[j].GetState() != STATE_DISCONNECTED)
6583                                 {
6584                                         strncat(buffer," ",MAXBUF);
6585                                         strncat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
6586                                         sendit = true;
6587                                 }
6588                         }
6589                 }
6590         }
6591         if (sendit)
6592                 NetSendToAll(buffer);
6593 }
6594
6595 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6596 {
6597         log(DEBUG,"Storing routing table...");
6598         char* sourceserver = strtok(params," ");
6599         char* server = strtok(NULL," ");
6600         for (int i = 0; i < 32; i++)
6601         {
6602                 if (me[i] != NULL)
6603                 {
6604                         for (int j = 0; j < me[i]->connectors.size(); j++)
6605                         {
6606                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
6607                                 {
6608                                         me[i]->connectors[j].routes.clear();
6609                                         log(DEBUG,"Found entry for source server.");
6610                                         while (server)
6611                                         {
6612                                                 // store each route
6613                                                 me[i]->connectors[j].routes.push_back(server);
6614                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
6615                                                 server = strtok(NULL," ");
6616                                         }
6617                                         return;
6618                                 }
6619                         }
6620                 }
6621         }
6622         log(DEBUG,"Warning! routing table received from nonexistent server!");
6623 }
6624
6625
6626 void DoSplit(const char* params)
6627 {
6628         bool go_again = true;
6629         while (go_again)
6630         {
6631                 go_again = false;
6632                 for (int i = 0; i < 32; i++)
6633                 {
6634                         if (me[i] != NULL)
6635                         {
6636                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
6637                                 {
6638                                         if (!strcasecmp(j->GetServerName().c_str(),params))
6639                                         {
6640                                                 j->routes.clear();
6641                                                 j->CloseConnection();
6642                                                 me[i]->connectors.erase(j);
6643                                                 go_again = true;
6644                                                 break;
6645                                         }
6646                                 }
6647                         }
6648                 }
6649         }
6650         log(DEBUG,"Removed server. Will remove clients...");
6651         // iterate through the userlist and remove all users on this server.
6652         // because we're dealing with a mesh, we dont have to deal with anything
6653         // "down-route" from this server (nice huh)
6654         go_again = true;
6655         char reason[MAXBUF];
6656         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
6657         while (go_again)
6658         {
6659                 go_again = false;
6660                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
6661                 {
6662                         if (!strcasecmp(u->second->server,params))
6663                         {
6664                                 kill_link(u->second,reason);
6665                                 go_again = true;
6666                                 break;
6667                         }
6668                 }
6669         }
6670 }
6671
6672 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6673 {
6674         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
6675         bool go_again = true;
6676         while (go_again)
6677         {
6678                 go_again = false;
6679                 for (int i = 0; i < 32; i++)
6680                 {
6681                         if (me[i] != NULL)
6682                         {
6683                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
6684                                 {
6685                                         if (!strcasecmp(j->GetServerName().c_str(),params))
6686                                         {
6687                                                 j->routes.clear();
6688                                                 j->CloseConnection();
6689                                                 me[i]->connectors.erase(j);
6690                                                 go_again = true;
6691                                                 break;
6692                                         }
6693                                 }
6694                         }
6695                 }
6696         }
6697         log(DEBUG,"Removed server. Will remove clients...");
6698         // iterate through the userlist and remove all users on this server.
6699         // because we're dealing with a mesh, we dont have to deal with anything
6700         // "down-route" from this server (nice huh)
6701         go_again = true;
6702         char reason[MAXBUF];
6703         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
6704         while (go_again)
6705         {
6706                 go_again = false;
6707                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
6708                 {
6709                         if (!strcasecmp(u->second->server,params))
6710                         {
6711                                 kill_link(u->second,reason);
6712                                 go_again = true;
6713                                 break;
6714                         }
6715                 }
6716         }
6717 }
6718
6719 long authcookie;
6720
6721
6722 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,char* ipaddr,int port)
6723 {
6724         char buffer[MAXBUF];
6725
6726         switch(token)
6727         {
6728                 // Y <TS>
6729                 // start netburst
6730                 case 'Y':
6731                         nb_start = time(NULL);
6732                         WriteOpers("Server %s is starting netburst.",udp_host);
6733                         // now broadcast this new servers address out to all servers that are linked to us,
6734                         // except the newcomer. They'll all attempt to connect back to it.
6735                         authcookie = rand()*rand();
6736                         snprintf(buffer,MAXBUF,"~ %d",authcookie);
6737                         NetSendToAll(buffer);
6738                 break;
6739                 // ~
6740                 // Store authcookie
6741                 // once stored, this authcookie permits other servers to log in
6742                 // without user or password, using it.
6743                 case '~':
6744                         auth_cookies.push_back(atoi(params));
6745                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
6746                 break;
6747                 // connect back to a server using an authcookie
6748                 case '+':
6749                         handle_plus(token,params,source,reply,udp_host);
6750                 break;
6751                 // routing table
6752                 case '$':
6753                         handle_dollar(token,params,source,reply,udp_host);
6754                 break;
6755                 // node unreachable - we cant route to a server, sooooo we slit it off.
6756                 // servers can generate these for themselves for an squit.
6757                 case '&':
6758                         handle_amp(token,params,source,reply,udp_host);
6759                 break;
6760                 // R <server> <data>
6761                 // redirect token, send all of <data> along to the given
6762                 // server as this server has been found to still have a route to it
6763                 case 'R':
6764                         handle_R(token,params,source,reply,udp_host);
6765                 break;
6766                 // ?
6767                 // ping
6768                 case '?':
6769                         reply->SendPacket("!",udp_host);
6770                 break;
6771                 // ?
6772                 // pong
6773                 case '!':
6774                 break;
6775                 // *
6776                 // no operation
6777                 case '*':
6778                 break;
6779                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6780                 // introduce remote client
6781                 case 'N':
6782                         handle_N(token,params,source,reply,udp_host);
6783                 break;
6784                 // a <NICK> :<GECOS>
6785                 // change GECOS (SETNAME)
6786                 case 'a':
6787                         handle_a(token,params,source,reply,udp_host);
6788                 break;
6789                 // b <NICK> :<HOST>
6790                 // change displayed host (SETHOST)
6791                 case 'b':
6792                         handle_b(token,params,source,reply,udp_host);
6793                 break;
6794                 // t <NICK> <CHANNEL> :<TOPIC>
6795                 // change a channel topic
6796                 case 't':
6797                         handle_t(token,params,source,reply,udp_host);
6798                 break;
6799                 // i <NICK> <CHANNEL>
6800                 // invite a user to a channel
6801                 case 'i':
6802                         handle_i(token,params,source,reply,udp_host);
6803                 break;
6804                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6805                 // kick a user from a channel
6806                 case 'k':
6807                         handle_k(token,params,source,reply,udp_host);
6808                 break;
6809                 // n <NICK> <NEWNICK>
6810                 // change nickname of client -- a server should only be able to
6811                 // change the nicknames of clients that reside on it unless
6812                 // they are ulined.
6813                 case 'n':
6814                         handle_n(token,params,source,reply,udp_host);
6815                 break;
6816                 // J <NICK> <CHANLIST>
6817                 // Join user to channel list, merge channel permissions
6818                 case 'J':
6819                         handle_J(token,params,source,reply,udp_host);
6820                 break;
6821                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6822                 // change channel topic (netburst only)
6823                 case 'T':
6824                         handle_T(token,params,source,reply,udp_host);
6825                 break;
6826                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6827                 // Server setting modes on an object
6828                 case 'M':
6829                         handle_M(token,params,source,reply,udp_host);
6830                 break;
6831                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6832                 // User setting modes on an object
6833                 case 'm':
6834                         handle_m(token,params,source,reply,udp_host);
6835                 break;
6836                 // P <SOURCE> <TARGET> :<TEXT>
6837                 // Send a private/channel message
6838                 case 'P':
6839                         handle_P(token,params,source,reply,udp_host);
6840                 break;
6841                 // V <SOURCE> <TARGET> :<TEXT>
6842                 // Send a private/channel notice
6843                 case 'V':
6844                         handle_V(token,params,source,reply,udp_host);
6845                 break;
6846                 // L <SOURCE> <CHANNEL> :<REASON>
6847                 // User parting a channel
6848                 case 'L':
6849                         handle_L(token,params,source,reply,udp_host);
6850                 break;
6851                 // Q <SOURCE> :<REASON>
6852                 // user quitting
6853                 case 'Q':
6854                         handle_Q(token,params,source,reply,udp_host);
6855                 break;
6856                 // K <SOURCE> <DEST> :<REASON>
6857                 // remote kill
6858                 case 'K':
6859                         handle_K(token,params,source,reply,udp_host);
6860                 break;
6861                 // @ <SOURCE> :<TEXT>
6862                 // wallops
6863                 case '@':
6864                         handle_AT(token,params,source,reply,udp_host);
6865                 break;
6866                 // F <TS>
6867                 // end netburst
6868                 case 'F':
6869                         WriteOpers("Server %s has completed netburst. (%d secs)",udp_host,time(NULL)-nb_start);
6870                         handle_F(token,params,source,reply,udp_host);
6871                         nb_start = 0;
6872                         // tell all the other servers to use this authcookie to connect back again
6873                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
6874                         snprintf(buffer,MAXBUF,"+ %s %s %d %d",udp_host,ipaddr,port,authcookie);
6875                         NetSendToAllExcept(udp_host,buffer);
6876                 break;
6877                 // X <reserved>
6878                 // Send netburst now
6879                 case 'X':
6880                         WriteOpers("Sending my netburst to %s",udp_host);
6881                         DoSync(source,udp_host);
6882                         WriteOpers("Send of netburst to %s completed",udp_host);
6883                         NetSendMyRoutingTable();
6884                 break;
6885                 // anything else
6886                 default:
6887                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6888                 break;
6889         }
6890 }
6891
6892
6893 void handle_link_packet(char* udp_msg, char* udp_host, serverrec *serv)
6894 {
6895         char response[10240];
6896         char token = udp_msg[0];
6897         char* params = udp_msg + 2;
6898         char finalparam[1024];
6899         strcpy(finalparam," :xxxx");
6900         if (strstr(params," :")) {
6901                 strncpy(finalparam,strstr(params," :"),1024);
6902         }
6903         if (token == '-') {
6904                 char* cookie = strtok(params," ");
6905                 char* servername = strtok(NULL," ");
6906                 char* serverdesc = finalparam+2;
6907
6908                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,udp_host);
6909
6910                 for (int u = 0; u < auth_cookies.size(); u++)
6911                 {
6912                         if (auth_cookies[u] == atoi(cookie))
6913                         {
6914                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
6915
6916
6917                                 for (int j = 0; j < 32; j++)
6918                                 {
6919                                         if (me[j] != NULL)
6920                                         {
6921                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
6922                                                 {
6923                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),udp_host))
6924                                                         {
6925                                                                 me[j]->connectors[k].SetServerName(servername);
6926                                                                 NetSendMyRoutingTable();
6927                                                                 return;
6928                                                         }
6929                                                 }
6930                                         }
6931                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",udp_host);
6932                                         return;
6933                                 }
6934
6935
6936                                 return;
6937                         }
6938                 }
6939                 // bad cookie, bad bad! go sit in the corner!
6940                 WriteOpers("Bad cookie from %s!",servername);
6941                 return;
6942         }
6943         else
6944         if (token == 'S') {
6945                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
6946                 char* servername = strtok(params," ");
6947                 char* password = strtok(NULL," ");
6948                 char* myport = strtok(NULL," ");
6949                 char* serverdesc = finalparam+2;
6950                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,udp_host,atoi(myport));
6951
6952                 for (int j = 0; j < serv->connectors.size(); j++)
6953                 {
6954                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),udp_host))
6955                         {
6956                                 serv->connectors[j].SetServerName(servername);
6957                                 serv->connectors[j].SetServerPort(atoi(myport));
6958                         }
6959                 }
6960
6961
6962                 char Link_ServerName[1024];
6963                 char Link_IPAddr[1024];
6964                 char Link_Port[1024];
6965                 char Link_Pass[1024];
6966                 char Link_SendPass[1024];
6967                 int LinkPort = 0;
6968
6969                 // search for a corresponding <link> block in the config files
6970                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6971                 {
6972                         ConfValue("link","name",i,Link_ServerName,&config_f);
6973                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6974                         ConfValue("link","port",i,Link_Port,&config_f);
6975                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6976                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6977                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6978                         LinkPort = atoi(Link_Port);
6979                         if (!strcasecmp(Link_ServerName,servername))
6980                         {
6981                                 // we have a matching link line -
6982                                 // send a 'diminutive' server message back...
6983                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6984                                 serv->SendPacket(response,servername);
6985                                 return;
6986                         }
6987                 }
6988                 char buffer[MAXBUF];
6989                 sprintf(buffer,"E :Access is denied (no matching link block)");
6990                 serv->SendPacket(buffer,udp_host);
6991                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6992                 return;
6993         }
6994         else
6995         if (token == 's') {
6996                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6997                 char* servername = strtok(params," ");
6998                 char* password = strtok(NULL," ");
6999                 char* serverdesc = finalparam+2;
7000
7001                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
7002                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
7003                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
7004                 // a connect, so put out an oper alert!
7005
7006
7007
7008
7009                 // for now, just accept all, we'll fix that later.
7010                 WriteOpers("%s accepted our link credentials ",servername);
7011
7012                 char Link_ServerName[1024];
7013                 char Link_IPAddr[1024];
7014                 char Link_Port[1024];
7015                 char Link_Pass[1024];
7016                 char Link_SendPass[1024];
7017                 int LinkPort = 0;
7018
7019                 // search for a corresponding <link> block in the config files
7020                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
7021                 {
7022                         ConfValue("link","name",i,Link_ServerName,&config_f);
7023                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
7024                         ConfValue("link","port",i,Link_Port,&config_f);
7025                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
7026                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
7027                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
7028                         LinkPort = atoi(Link_Port);
7029                         if (!strcasecmp(Link_ServerName,servername))
7030                         {
7031                                 // matching link at this end too, we're all done!
7032                                 // at this point we must begin key exchange and insert this
7033                                 // server into our 'active' table.
7034                                 for (int j = 0; j < 32; j++)
7035                                 {
7036                                         if (me[j] != NULL)
7037                                         {
7038                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
7039                                                 {
7040                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),udp_host))
7041                                                         {
7042                                                                 char buffer[MAXBUF];
7043                                                                 sprintf(buffer,"X 0");
7044                                                                 serv->SendPacket(buffer,udp_host);
7045                                                                 DoSync(me[j],udp_host);
7046                                                                 NetSendMyRoutingTable();
7047                                                                 return;
7048                                                         }
7049                                                 }
7050                                         }
7051                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
7052                                         return;
7053                                 }
7054                         }
7055                         else {
7056                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
7057                         }
7058                 }
7059                 char buffer[MAXBUF];
7060                 sprintf(buffer,"E :Access is denied (no matching link block)");
7061                 serv->SendPacket(buffer,udp_host);
7062                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
7063                 return;
7064         }
7065         else
7066         if (token == 'E') {
7067                 char* error_message = finalparam+2;
7068                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
7069                 // remove this server from any lists
7070                 return;
7071         }
7072         else {
7073
7074                 serverrec* source_server = NULL;
7075
7076                 for (int j = 0; j < 32; j++)
7077                 {
7078                         if (me[j] != NULL)
7079                         {
7080                                 for (int x = 0; x < me[j]->connectors.size(); x++)
7081                                 {
7082                                         log(DEBUG,"Servers are: '%s' '%s'",udp_host,me[j]->connectors[x].GetServerName().c_str());
7083                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),udp_host))
7084                                         {
7085                                                 log(DEBUG,"match! process restricted stuff here");
7086                                                 // found a valid ircd_connector.
7087                                                 // TODO: Fix this so it only lets servers in that are in the
7088                                                 // STATE_CONNECTED state!!!
7089                                                 process_restricted_commands(token,params,me[j],serv,udp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
7090                                                 return;
7091                                         }
7092                                 }
7093                         }
7094                 }
7095
7096                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",udp_host,token);
7097         }
7098 }
7099
7100 int reap_counter = 0;
7101
7102 int InspIRCd(void)
7103 {
7104         struct sockaddr_in client, server;
7105         char addrs[MAXBUF][255];
7106         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
7107         socklen_t length;
7108         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
7109         int selectResult = 0, selectResult2 = 0;
7110         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
7111         char resolvedHost[MAXBUF];
7112         fd_set selectFds;
7113         struct timeval tv;
7114
7115         log_file = fopen("ircd.log","a+");
7116         if (!log_file)
7117         {
7118                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
7119                 Exit(ERROR);
7120         }
7121
7122         log(DEBUG,"InspIRCd: startup: begin");
7123         log(DEBUG,"$Id$");
7124         if (geteuid() == 0)
7125         {
7126                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
7127                 Exit(ERROR);
7128                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
7129         }
7130         SetupCommandTable();
7131         log(DEBUG,"InspIRCd: startup: default command table set up");
7132
7133         ReadConfig();
7134         if (strcmp(DieValue,""))
7135         {
7136                 printf("WARNING: %s\n\n",DieValue);
7137                 exit(0);
7138         }
7139         log(DEBUG,"InspIRCd: startup: read config");
7140
7141         int count2 = 0, count3 = 0;
7142
7143         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
7144         {
7145                 ConfValue("bind","port",count,configToken,&config_f);
7146                 ConfValue("bind","address",count,Addr,&config_f);
7147                 ConfValue("bind","type",count,Type,&config_f);
7148                 if (!strcmp(Type,"servers"))
7149                 {
7150                         char Default[MAXBUF];
7151                         strcpy(Default,"no");
7152                         ConfValue("bind","default",count,Default,&config_f);
7153                         if (strchr(Default,'y'))
7154                         {
7155                                 defaultRoute = count3;
7156                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
7157                         }
7158                         me[count3] = new serverrec(ServerName,100L,false);
7159                         me[count3]->CreateListener(Addr,atoi(configToken));
7160                         count3++;
7161                 }
7162                 else
7163                 {
7164                         ports[count2] = atoi(configToken);
7165                         strcpy(addrs[count2],Addr);
7166                         count2++;
7167                 }
7168                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
7169         }
7170         portCount = count2;
7171         UDPportCount = count3;
7172
7173         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
7174
7175         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
7176
7177         printf("\n");
7178
7179         /* BugFix By Craig! :p */
7180         count = 0;
7181         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
7182         {
7183                 char modfile[MAXBUF];
7184                 ConfValue("module","name",count2,configToken,&config_f);
7185                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
7186                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
7187                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
7188                 /* If The File Doesnt exist, Trying to load it
7189                  * Will Segfault the IRCd.. So, check to see if
7190                  * it Exists, Before Proceeding. */
7191                 if (FileExists(modfile))
7192                 {
7193                         factory[count] = new ircd_module(modfile);
7194                         if (factory[count]->LastError())
7195                         {
7196                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
7197                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
7198                                 Exit(ERROR);
7199                         }
7200                         if (factory[count]->factory)
7201                         {
7202                                 modules[count] = factory[count]->factory->CreateModule();
7203                                 /* save the module and the module's classfactory, if
7204                                  * this isnt done, random crashes can occur :/ */
7205                                 module_names.push_back(modfile);
7206                         }
7207                         else
7208                         {
7209                                 log(DEBUG,"Unable to load %s",modfile);
7210                                 sprintf("Unable to load %s\nExiting...\n",modfile);
7211                                 Exit(ERROR);
7212                         }
7213                         /* Increase the Count */
7214                         count++;
7215                 }
7216                 else
7217                 {
7218                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
7219                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
7220                 }
7221         }
7222         MODCOUNT = count - 1;
7223         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
7224
7225         printf("\nInspIRCd is now running!\n");
7226
7227         startup_time = time(NULL);
7228
7229         if (nofork)
7230         {
7231                 log(VERBOSE,"Not forking as -nofork was specified");
7232         }
7233         else
7234         {
7235                 if (DaemonSeed() == ERROR)
7236                 {
7237                         log(DEBUG,"InspIRCd: startup: can't daemonise");
7238                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
7239                         Exit(ERROR);
7240                 }
7241         }
7242
7243
7244         /* setup select call */
7245         FD_ZERO(&selectFds);
7246         log(DEBUG,"InspIRCd: startup: zero selects");
7247         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
7248
7249         for (count = 0; count < portCount; count++)
7250         {
7251                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
7252                 {
7253                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
7254                         return(ERROR);
7255                 }
7256                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
7257                 {
7258                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
7259                 }
7260                 else    /* well we at least bound to one socket so we'll continue */
7261                 {
7262                         boundPortCount++;
7263                 }
7264         }
7265
7266         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
7267
7268         /* if we didn't bind to anything then abort */
7269         if (boundPortCount == 0)
7270         {
7271                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
7272                 return (ERROR);
7273         }
7274
7275
7276         length = sizeof (client);
7277         char udp_msg[MAXBUF], udp_host[MAXBUF];
7278
7279         /* main loop, this never returns */
7280         for (;;)
7281         {
7282 #ifdef _POSIX_PRIORITY_SCHEDULING
7283                 sched_yield();
7284 #endif
7285
7286                 fd_set sfd;
7287                 timeval tval;
7288                 FD_ZERO(&sfd);
7289
7290                 user_hash::iterator count2 = clientlist.begin();
7291
7292                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
7293                 // them in a list, then reap the list every second or so.
7294                 if (reap_counter>2500)
7295                 {
7296                         if (fd_reap.size() > 0)
7297                         {
7298                                 for( int n = 0; n < fd_reap.size(); n++)
7299                                 {
7300                                         Blocking(fd_reap[n]);
7301                                         close(fd_reap[n]);
7302                                         NonBlocking(fd_reap[n]);
7303                                 }
7304                         }
7305                         fd_reap.clear();
7306                         reap_counter=0;
7307                 }
7308                 reap_counter++;
7309
7310                 fd_set serverfds;
7311                 FD_ZERO(&serverfds);
7312                 timeval tvs;
7313
7314                 for (int x = 0; x != UDPportCount; x++)
7315                 {
7316                         FD_SET(me[x]->fd, &serverfds);
7317                 }
7318
7319                 tvs.tv_usec = 0;
7320                 tvs.tv_sec = 0;
7321
7322                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
7323                 if (servresult > 0)
7324                 {
7325                         for (int x = 0; x != UDPportCount; x++)
7326                         {
7327                                 if (FD_ISSET (me[x]->fd, &serverfds))
7328                                 {
7329                                         char remotehost[MAXBUF],resolved[MAXBUF];
7330                                         length = sizeof (client);
7331                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
7332                                         strncpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
7333                                         if(CleanAndResolve(resolved, remotehost) != TRUE)
7334                                         {
7335                                                 strncpy(resolved,remotehost,MAXBUF);
7336                                         }
7337                                         // add to this connections ircd_connector vector
7338                                         // *FIX* - we need the LOCAL port not the remote port in &client!
7339                                         me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
7340                                 }
7341                         }
7342                 }
7343
7344                 for (int x = 0; x < UDPportCount; x++)
7345                 {
7346                         std::deque<std::string> msgs;
7347                         msgs.clear();
7348                         if (me[x]->RecvPacket(msgs, udp_host))
7349                         {
7350                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
7351                                 {
7352                                         char udp_msg[MAXBUF];
7353                                         strncpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
7354                                         if (strlen(udp_msg)<1)
7355                                                 {
7356                                                 log(DEBUG,"Invalid string from %s [route%d]",udp_host,x);
7357                                                 break;
7358                                         }
7359                                         // during a netburst, send all data to all other linked servers
7360                                         if ((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
7361                                         {
7362                                                 NetSendToAllExcept(udp_host,udp_msg);
7363                                         }
7364                                         FOREACH_MOD OnPacketReceive(udp_msg);
7365                                         handle_link_packet(udp_msg, udp_host, me[x]);
7366                                 }
7367                                 goto label;
7368                         }
7369                 }
7370
7371
7372         while (count2 != clientlist.end())
7373         {
7374                 char data[10240];
7375                 tval.tv_usec = tval.tv_sec = 0;
7376                 FD_ZERO(&sfd);
7377                 int total_in_this_set = 0;
7378
7379                 user_hash::iterator xcount = count2;
7380                 user_hash::iterator endingiter = count2;
7381
7382                 if (!count2->second) break;
7383
7384                 if (count2->second)
7385                 if (count2->second->fd != 0)
7386                 {
7387                         // assemble up to 64 sockets into an fd_set
7388                         // to implement a pooling mechanism.
7389                         //
7390                         // This should be up to 64x faster than the
7391                         // old implementation.
7392                         while (total_in_this_set < 64)
7393                         {
7394                                 if (count2 != clientlist.end())
7395                                 {
7396                                         // we don't check the state of remote users.
7397                                         if (count2->second->fd > 0)
7398                                         {
7399                                                 FD_SET (count2->second->fd, &sfd);
7400
7401                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
7402                                                 // their connection class.
7403                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
7404                                                 {
7405                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
7406                                                         kill_link(count2->second,"Registration timeout");
7407                                                         goto label;
7408                                                 }
7409                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
7410                                                 {
7411                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
7412                                                         {
7413                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
7414                                                                 kill_link(count2->second,"Ping timeout");
7415                                                                 goto label;
7416                                                         }
7417                                                         Write(count2->second->fd,"PING :%s",ServerName);
7418                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
7419                                                         count2->second->lastping = 0;
7420                                                         count2->second->nping = time(NULL)+120;
7421                                                 }
7422                                         }
7423                                         count2++;
7424                                         total_in_this_set++;
7425                                 }
7426                                 else break;
7427                         }
7428
7429                         endingiter = count2;
7430                         count2 = xcount; // roll back to where we were
7431
7432                         int v = 0;
7433
7434                         tval.tv_usec = 0;
7435                         tval.tv_sec = 0;
7436                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
7437
7438                         // now loop through all of the items in this pool if any are waiting
7439                         //if (selectResult2 > 0)
7440                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
7441                         {
7442
7443 #ifdef _POSIX_PRIORITY_SCHEDULING
7444                                 sched_yield();
7445 #endif
7446
7447                                 result = EAGAIN;
7448                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
7449                                 {
7450                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
7451                                         memset(data, 0, 10240);
7452                                         result = read(count2a->second->fd, data, 10240);
7453
7454                                         if (result)
7455                                         {
7456                                                 log(DEBUG,"Read %d characters from socket",result);
7457                                                 userrec* current = count2a->second;
7458                                                 int currfd = current->fd;
7459                                                 char* l = strtok(data,"\n");
7460                                                 int floodlines = 0;
7461                                                 while (l)
7462                                                 {
7463                                                         floodlines++;
7464                                                         if ((floodlines > current->flood) && (current->flood != 0))
7465                                                         {
7466                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7467                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7468                                                                 kill_link(current,"Excess flood");
7469                                                                 goto label;
7470                                                         }
7471                                                         char sanitized[NetBufferSize];
7472                                                         memset(sanitized, 0, NetBufferSize);
7473                                                         int ptt = 0;
7474                                                         for (int pt = 0; pt < strlen(l); pt++)
7475                                                         {
7476                                                                 if (l[pt] != '\r')
7477                                                                 {
7478                                                                         sanitized[ptt++] = l[pt];
7479                                                                 }
7480                                                         }
7481                                                         sanitized[ptt] = '\0';
7482                                                         if (strlen(sanitized))
7483                                                         {
7484
7485
7486                                                                 // we're gonna re-scan to check if the nick is gone, after every
7487                                                                 // command - if it has, we're gonna bail
7488                                                                 bool find_again = false;
7489                                                                 process_buffer(sanitized,current);
7490
7491                                                                 // look for the user's record in case it's changed
7492                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
7493                                                                 {
7494                                                                         if (c2->second->fd == currfd)
7495                                                                         {
7496                                                                                 // found again, update pointer
7497                                                                                 current == c2->second;
7498                                                                                 find_again = true;
7499                                                                                 break;
7500                                                                         }
7501                                                                 }
7502                                                                 if (!find_again)
7503                                                                         goto label;
7504
7505                                                         }
7506                                                         l = strtok(NULL,"\n");
7507                                                 }
7508                                                 goto label;
7509                                         }
7510
7511                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
7512                                         {
7513                                                 log(DEBUG,"killing: %s",count2a->second->nick);
7514                                                 kill_link(count2a->second,strerror(errno));
7515                                                 goto label;
7516                                         }
7517                                 }
7518                                 // result EAGAIN means nothing read
7519                                 if (result == EAGAIN)
7520                                 {
7521                                 }
7522                                 else
7523                                 if (result == 0)
7524                                 {
7525                                         if (count2->second)
7526                                         {
7527                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
7528                                                 kill_link(count2a->second,"Client exited");
7529                                                 // must bail here? kill_link removes the hash, corrupting the iterator
7530                                                 log(DEBUG,"Bailing from client exit");
7531                                                 goto label;
7532                                         }
7533                                 }
7534                                 else if (result > 0)
7535                                 {
7536                                 }
7537                         }
7538                 }
7539                 for (int q = 0; q < total_in_this_set; q++)
7540                 {
7541                         // there is no iterator += operator :(
7542                         //if (count2 != clientlist.end())
7543                         //{
7544                                 count2++;
7545                         //}
7546                 }
7547         }
7548
7549         // set up select call
7550         for (count = 0; count < boundPortCount; count++)
7551         {
7552                 FD_SET (openSockfd[count], &selectFds);
7553         }
7554
7555         tv.tv_usec = 1;
7556         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
7557
7558         /* select is reporting a waiting socket. Poll them all to find out which */
7559         if (selectResult > 0)
7560         {
7561                 char target[MAXBUF], resolved[MAXBUF];
7562                 for (count = 0; count < boundPortCount; count++)
7563                 {
7564                         if (FD_ISSET (openSockfd[count], &selectFds))
7565                         {
7566                                 length = sizeof (client);
7567                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
7568
7569                                 address_cache::iterator iter = IP.find(client.sin_addr);
7570                                 bool iscached = false;
7571                                 if (iter == IP.end())
7572                                 {
7573                                         /* ip isn't in cache, add it */
7574                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7575                                         if(CleanAndResolve(resolved, target) != TRUE)
7576                                         {
7577                                                 strncpy(resolved,target,MAXBUF);
7578                                         }
7579                                         /* hostname now in 'target' */
7580                                         IP[client.sin_addr] = new string(resolved);
7581                                         /* hostname in cache */
7582                                 }
7583                                 else
7584                                 {
7585                                         /* found ip (cached) */
7586                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7587                                         iscached = true;
7588                                 }
7589
7590                                 if (incomingSockfd < 0)
7591                                 {
7592                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7593                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7594                                 }
7595                                 else
7596                                 {
7597                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7598                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7599                                 }
7600                                 goto label;
7601                         }
7602                 }
7603         }
7604         label:
7605         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7606 }
7607 /* not reached */
7608 close (incomingSockfd);
7609 }
7610