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 "connection.h"
  45 #include "users.h"
  46 #include "servers.h"
  47 #include "ctables.h"
  48 #include "globals.h"
  49 #include "modules.h"
  50 #include "dynamic.h"
  51 #include "wildcard.h"
  52
  53 #ifdef GCC3
  54 #define nspace __gnu_cxx
  55 #else
  56 #define nspace std
  57 #endif
  58
  59 int LogLevel = DEFAULT;
  60 char ServerName[MAXBUF];
  61 char Network[MAXBUF];
  62 char ServerDesc[MAXBUF];
  63 char AdminName[MAXBUF];
  64 char AdminEmail[MAXBUF];
  65 char AdminNick[MAXBUF];
  66 char diepass[MAXBUF];
  67 char restartpass[MAXBUF];
  68 char motd[MAXBUF];
  69 char rules[MAXBUF];
  70 char list[MAXBUF];
  71 char PrefixQuit[MAXBUF];
  72 char DieValue[MAXBUF];
  73 int debugging =  0;
  74 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  75 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  76 int DieDelay  =  5;
  77 time_t startup_time = time(NULL);
  78 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  79 time_t nb_start = time(NULL);
  80
  81 extern vector<Module*> modules;
  82 std::vector<std::string> module_names;
  83 extern vector<ircd_module*> factory;
  84 std::vector<int> fd_reap;
  85
  86 extern int MODCOUNT;
  87
  88 bool nofork = false;
  89
  90 namespace nspace
  91 {
  92         template<> struct nspace::hash<in_addr>
  93         {
  94                 size_t operator()(const struct in_addr &a) const
  95                 {
  96                         size_t q;
  97                         memcpy(&q,&a,sizeof(size_t));
  98                         return q;
  99                 }
 100         };
 101
 102         template<> struct nspace::hash<string>
 103         {
 104                 size_t operator()(const string &s) const
 105                 {
 106                         char a[MAXBUF];
 107                         static struct hash<const char *> strhash;
 108                         strcpy(a,s.c_str());
 109                         strlower(a);
 110                         return strhash(a);
 111                 }
 112         };
 113 }
 114
 115
 116 struct StrHashComp
 117 {
 118
 119         bool operator()(const string& s1, const string& s2) const
 120         {
 121                 char a[MAXBUF],b[MAXBUF];
 122                 strcpy(a,s1.c_str());
 123                 strcpy(b,s2.c_str());
 124                 return (strcasecmp(a,b) == 0);
 125         }
 126
 127 };
 128
 129 struct InAddr_HashComp
 130 {
 131
 132         bool operator()(const in_addr &s1, const in_addr &s2) const
 133         {
 134                 size_t q;
 135                 size_t p;
 136
 137                 memcpy(&q,&s1,sizeof(size_t));
 138                 memcpy(&p,&s2,sizeof(size_t));
 139
 140                 return (q == p);
 141         }
 142
 143 };
 144
 145
 146 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 147 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 148 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 149 typedef std::deque<command_t> command_table;
 150
 151 serverrec* me[32];
 152 serverrec* servers[255];
 153
 154 FILE *log_file;
 155
 156 user_hash clientlist;
 157 chan_hash chanlist;
 158 user_hash whowas;
 159 command_table cmdlist;
 160 file_cache MOTD;
 161 file_cache RULES;
 162 address_cache IP;
 163
 164 ClassVector Classes;
 165
 166 struct linger linger = { 0 };
 167 char bannerBuffer[MAXBUF];
 168 int boundPortCount = 0;
 169 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 170 int defaultRoute = 0;
 171
 172 connection C;
 173
 174 long MyKey = C.GenKey();
 175
 176 /* prototypes */
 177
 178 int has_channel(userrec *u, chanrec *c);
 179 int usercount(chanrec *c);
 180 int usercount_i(chanrec *c);
 181 void update_stats_l(int fd,int data_out);
 182 char* Passwd(userrec *user);
 183 bool IsDenied(userrec *user);
 184 void AddWhoWas(userrec* u);
 185
 186 std::stringstream config_f(stringstream::in | stringstream::out);
 187
 188 void safedelete(userrec *p)
 189 {
 190         if (p)
 191         {
 192                 log(DEBUG,"deleting %s %s %s %s",p->nick,p->ident,p->dhost,p->fullname);
 193                 log(DEBUG,"safedelete(userrec*): pointer is safe to delete");
 194                 delete p;
 195                 p = NULL;
 196         }
 197         else
 198         {
 199                 log(DEBUG,"safedelete(userrec*): unsafe pointer operation squished");
 200         }
 201 }
 202
 203 void safedelete(chanrec *p)
 204 {
 205         if (p)
 206         {
 207                 delete p;
 208                 p = NULL;
 209                 log(DEBUG,"safedelete(chanrec*): pointer is safe to delete");
 210         }
 211         else
 212         {
 213                 log(DEBUG,"safedelete(chanrec*): unsafe pointer operation squished");
 214         }
 215 }
 216
 217
 218 void tidystring(char* str)
 219 {
 220         // strips out double spaces before a : parameter
 221
 222         char temp[MAXBUF];
 223         bool go_again = true;
 224
 225         if (!str)
 226         {
 227                 return;
 228         }
 229
 230         while ((str[0] == ' ') && (strlen(str)>0))
 231         {
 232                 str++;
 233         }
 234
 235         while (go_again)
 236         {
 237                 bool noparse = false;
 238                 int t = 0, a = 0;
 239                 go_again = false;
 240                 while (a < strlen(str))
 241                 {
 242                         if ((a<strlen(str)-1) && (noparse==false))
 243                         {
 244                                 if ((str[a] == ' ') && (str[a+1] == ' '))
 245                                 {
 246                                         log(DEBUG,"Tidied extra space out of string: %s",str);
 247                                         go_again = true;
 248                                         a++;
 249                                 }
 250                         }
 251
 252                         if (a<strlen(str)-1)
 253                         {
 254                                 if ((str[a] == ' ') && (str[a+1] == ':'))
 255                                 {
 256                                         noparse = true;
 257                                 }
 258                         }
 259
 260                         temp[t++] = str[a++];
 261                 }
 262                 temp[t] = '\0';
 263                 strncpy(str,temp,MAXBUF);
 264         }
 265 }
 266
 267 /* chop a string down to 512 characters and preserve linefeed (irc max
 268  * line length) */
 269
 270 void chop(char* str)
 271 {
 272   if (!str)
 273   {
 274         log(DEBUG,"ERROR! Null string passed to chop()!");
 275         return;
 276   }
 277   string temp = str;
 278   FOREACH_MOD OnServerRaw(temp,false);
 279   const char* str2 = temp.c_str();
 280   sprintf(str,"%s",str2);
 281
 282
 283   if (strlen(str) >= 512)
 284   {
 285         str[509] = '\r';
 286         str[510] = '\n';
 287         str[511] = '\0';
 288   }
 289 }
 290
 291
 292 std::string getservername()
 293 {
 294         return ServerName;
 295 }
 296
 297 std::string getserverdesc()
 298 {
 299         return ServerDesc;
 300 }
 301
 302 std::string getnetworkname()
 303 {
 304         return Network;
 305 }
 306
 307 std::string getadminname()
 308 {
 309         return AdminName;
 310 }
 311
 312 std::string getadminemail()
 313 {
 314         return AdminEmail;
 315 }
 316
 317 std::string getadminnick()
 318 {
 319         return AdminNick;
 320 }
 321
 322 void log(int level,char *text, ...)
 323 {
 324         char textbuffer[MAXBUF];
 325         va_list argsPtr;
 326         time_t rawtime;
 327         struct tm * timeinfo;
 328         if (level < LogLevel)
 329                 return;
 330
 331         time(&rawtime);
 332         timeinfo = localtime (&rawtime);
 333
 334         if (log_file)
 335         {
 336                 char b[MAXBUF];
 337                 va_start (argsPtr, text);
 338                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 339                 va_end(argsPtr);
 340                 strcpy(b,asctime(timeinfo));
 341                 b[strlen(b)-1] = ':';
 342                 fprintf(log_file,"%s %s\n",b,textbuffer);
 343                 if (nofork)
 344                 {
 345                         // nofork enabled? display it on terminal too
 346                         printf("%s %s\n",b,textbuffer);
 347                 }
 348         }
 349 }
 350
 351 void readfile(file_cache &F, const char* fname)
 352 {
 353   FILE* file;
 354   char linebuf[MAXBUF];
 355
 356   log(DEBUG,"readfile: loading %s",fname);
 357   F.clear();
 358   file =  fopen(fname,"r");
 359   if (file)
 360   {
 361         while (!feof(file))
 362         {
 363                 fgets(linebuf,sizeof(linebuf),file);
 364                 linebuf[strlen(linebuf)-1]='\0';
 365                 if (!strcmp(linebuf,""))
 366                 {
 367                         strcpy(linebuf,"  ");
 368                 }
 369                 if (!feof(file))
 370                 {
 371                         F.push_back(linebuf);
 372                 }
 373         }
 374         fclose(file);
 375   }
 376   else
 377   {
 378           log(DEBUG,"readfile: failed to load file: %s",fname);
 379   }
 380   log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 381 }
 382
 383 void ReadConfig(void)
 384 {
 385   char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF];
 386   ConnectClass c;
 387
 388   LoadConf(CONFIG_FILE,&config_f);
 389
 390   ConfValue("server","name",0,ServerName,&config_f);
 391   ConfValue("server","description",0,ServerDesc,&config_f);
 392   ConfValue("server","network",0,Network,&config_f);
 393   ConfValue("admin","name",0,AdminName,&config_f);
 394   ConfValue("admin","email",0,AdminEmail,&config_f);
 395   ConfValue("admin","nick",0,AdminNick,&config_f);
 396   ConfValue("files","motd",0,motd,&config_f);
 397   ConfValue("files","rules",0,rules,&config_f);
 398   ConfValue("power","diepass",0,diepass,&config_f);
 399   ConfValue("power","pause",0,pauseval,&config_f);
 400   ConfValue("power","restartpass",0,restartpass,&config_f);
 401   ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 402   ConfValue("die","value",0,DieValue,&config_f);
 403   ConfValue("options","loglevel",0,dbg,&config_f);
 404   ConfValue("options","netbuffersize",0,NB,&config_f);
 405   NetBufferSize = atoi(NB);
 406   if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 407   {
 408         log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 409         NetBufferSize = 10240;
 410   }
 411   if (!strcmp(dbg,"debug"))
 412         LogLevel = DEBUG;
 413   if (!strcmp(dbg,"verbose"))
 414         LogLevel = VERBOSE;
 415   if (!strcmp(dbg,"default"))
 416         LogLevel = DEFAULT;
 417   if (!strcmp(dbg,"sparse"))
 418         LogLevel = SPARSE;
 419   if (!strcmp(dbg,"none"))
 420         LogLevel = NONE;
 421   readfile(MOTD,motd);
 422   log(DEBUG,"Reading message of the day");
 423   readfile(RULES,rules);
 424   log(DEBUG,"Reading connect classes");
 425   Classes.clear();
 426   for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 427   {
 428         strcpy(Value,"");
 429         ConfValue("connect","allow",i,Value,&config_f);
 430         ConfValue("connect","timeout",i,timeout,&config_f);
 431         ConfValue("connect","flood",i,flood,&config_f);
 432         if (strcmp(Value,""))
 433         {
 434                 strcpy(c.host,Value);
 435                 c.type = CC_ALLOW;
 436                 strcpy(Value,"");
 437                 ConfValue("connect","password",i,Value,&config_f);
 438                 strcpy(c.pass,Value);
 439                 c.registration_timeout = 90; // default is 2 minutes
 440                 c.flood = atoi(flood);
 441                 if (atoi(timeout)>0)
 442                 {
 443                         c.registration_timeout = atoi(timeout);
 444                 }
 445                 Classes.push_back(c);
 446                 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 447         }
 448         else
 449         {
 450                 ConfValue("connect","deny",i,Value,&config_f);
 451                 strcpy(c.host,Value);
 452                 c.type = CC_DENY;
 453                 Classes.push_back(c);
 454                 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 455         }
 456
 457   }
 458 }
 459
 460 void Blocking(int s)
 461 {
 462   int flags;
 463   log(DEBUG,"Blocking: %d",s);
 464   flags = fcntl(s, F_GETFL, 0);
 465   fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
 466 }
 467
 468 void NonBlocking(int s)
 469 {
 470   int flags;
 471   log(DEBUG,"NonBlocking: %d",s);
 472   flags = fcntl(s, F_GETFL, 0);
 473   //fcntl(s, F_SETFL, O_NONBLOCK);
 474   fcntl(s, F_SETFL, flags | O_NONBLOCK);
 475 }
 476
 477
 478 int CleanAndResolve (char *resolvedHost, const char *unresolvedHost)
 479 {
 480   struct hostent *hostPtr = NULL;
 481   struct in_addr addr;
 482
 483   memset (resolvedHost, '\0',MAXBUF);
 484   if(unresolvedHost == NULL)
 485         return(ERROR);
 486   if ((inet_aton(unresolvedHost,&addr)) == 0)
 487         return(ERROR);
 488   hostPtr = gethostbyaddr ((char *)&addr.s_addr,sizeof(addr.s_addr),AF_INET);
 489   if (hostPtr != NULL)
 490         snprintf(resolvedHost,MAXBUF,"%s",hostPtr->h_name);
 491   else
 492         snprintf(resolvedHost,MAXBUF,"%s",unresolvedHost);
 493   return (TRUE);
 494 }
 495
 496 /* write formatted text to a socket, in same format as printf */
 497
 498 void Write(int sock,char *text, ...)
 499 {
 500   if (!text)
 501   {
 502         log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 503         return;
 504   }
 505   char textbuffer[MAXBUF];
 506   va_list argsPtr;
 507   char tb[MAXBUF];
 508
 509   va_start (argsPtr, text);
 510   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 511   va_end(argsPtr);
 512   sprintf(tb,"%s\r\n",textbuffer);
 513   chop(tb);
 514   if (sock != -1)
 515   {
 516         write(sock,tb,strlen(tb));
 517         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 518   }
 519 }
 520
 521 /* write a server formatted numeric response to a single socket */
 522
 523 void WriteServ(int sock, char* text, ...)
 524 {
 525   if (!text)
 526   {
 527         log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 528         return;
 529   }
 530   char textbuffer[MAXBUF],tb[MAXBUF];
 531   va_list argsPtr;
 532   va_start (argsPtr, text);
 533
 534   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 535   va_end(argsPtr);
 536   sprintf(tb,":%s %s\r\n",ServerName,textbuffer);
 537   chop(tb);
 538   if (sock != -1)
 539   {
 540         write(sock,tb,strlen(tb));
 541         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 542   }
 543 }
 544
 545 /* write text from an originating user to originating user */
 546
 547 void WriteFrom(int sock, userrec *user,char* text, ...)
 548 {
 549   if ((!text) || (!user))
 550   {
 551         log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 552         return;
 553   }
 554   char textbuffer[MAXBUF],tb[MAXBUF];
 555   va_list argsPtr;
 556   va_start (argsPtr, text);
 557
 558   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 559   va_end(argsPtr);
 560   sprintf(tb,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 561   chop(tb);
 562   if (sock != -1)
 563   {
 564         write(sock,tb,strlen(tb));
 565         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 566   }
 567 }
 568
 569 /* write text to an destination user from a source user (e.g. user privmsg) */
 570
 571 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 572 {
 573         if ((!dest) || (!data))
 574         {
 575                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 576                 return;
 577         }
 578         char textbuffer[MAXBUF],tb[MAXBUF];
 579         va_list argsPtr;
 580         va_start (argsPtr, data);
 581         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 582         va_end(argsPtr);
 583         chop(tb);
 584
 585         // if no source given send it from the server.
 586         if (!source)
 587         {
 588                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 589         }
 590         else
 591         {
 592                 WriteFrom(dest->fd,source,"%s",textbuffer);
 593         }
 594 }
 595
 596 /* write formatted text from a source user to all users on a channel
 597  * including the sender (NOT for privmsg, notice etc!) */
 598
 599 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 600 {
 601         if ((!Ptr) || (!user) || (!text))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 610         va_end(argsPtr);
 611         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 612         {
 613                 if (has_channel(i->second,Ptr))
 614                 {
 615                         WriteTo(user,i->second,"%s",textbuffer);
 616                 }
 617         }
 618 }
 619
 620 /* write formatted text from a source user to all users on a channel
 621  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 622  * users on remote servers */
 623
 624 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 625 {
 626         if ((!Ptr) || (!text))
 627         {
 628                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 629                 return;
 630         }
 631         char textbuffer[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, text);
 634         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 635         va_end(argsPtr);
 636         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 637         {
 638                 if (has_channel(i->second,Ptr))
 639                 {
 640                         if (i->second->fd != -1)
 641                         {
 642                                 if (!user)
 643                                 {
 644                                         WriteServ(i->second->fd,"%s",textbuffer);
 645                                 }
 646                                 else
 647                                 {
 648                                         WriteTo(user,i->second,"%s",textbuffer);
 649                                 }
 650                         }
 651                 }
 652         }
 653 }
 654
 655
 656 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 657 {
 658         if ((!Ptr) || (!user) || (!text))
 659         {
 660                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 661                 return;
 662         }
 663         char textbuffer[MAXBUF];
 664         va_list argsPtr;
 665         va_start (argsPtr, text);
 666         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 667         va_end(argsPtr);
 668         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 669         {
 670                 if (i->second)
 671                 {
 672                         if (has_channel(i->second,Ptr))
 673                         {
 674                                 WriteServ(i->second->fd,"%s",textbuffer);
 675                         }
 676                 }
 677         }
 678 }
 679
 680
 681 /* write formatted text from a source user to all users on a channel except
 682  * for the sender (for privmsg etc) */
 683
 684 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 685 {
 686         if ((!Ptr) || (!user) || (!text))
 687         {
 688                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 689                 return;
 690         }
 691         char textbuffer[MAXBUF];
 692         va_list argsPtr;
 693         va_start (argsPtr, text);
 694         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 695         va_end(argsPtr);
 696
 697         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 698         {
 699                 if (i->second)
 700                 {
 701                         if (has_channel(i->second,Ptr) && (user != i->second))
 702                         {
 703                                 WriteTo(user,i->second,"%s",textbuffer);
 704                         }
 705                 }
 706         }
 707 }
 708
 709 int c_count(userrec* u)
 710 {
 711         int z = 0;
 712         for (int i =0; i != MAXCHANS; i++)
 713                 if (u->chans[i].channel != NULL)
 714                         z++;
 715         return z;
 716
 717 }
 718
 719 /* return 0 or 1 depending if users u and u2 share one or more common channels
 720  * (used by QUIT, NICK etc which arent channel specific notices) */
 721
 722 int common_channels(userrec *u, userrec *u2)
 723 {
 724         int i = 0;
 725         int z = 0;
 726
 727         if ((!u) || (!u2))
 728         {
 729                 log(DEFAULT,"*** BUG *** common_channels was given an invalid parameter");
 730                 return 0;
 731         }
 732         for (int i = 0; i != MAXCHANS; i++)
 733         {
 734                 for (z = 0; z != MAXCHANS; z++)
 735                 {
 736                         if ((u->chans[i].channel != NULL) && (u2->chans[z].channel != NULL))
 737                         {
 738                                 if ((u->chans[i].channel == u2->chans[z].channel) && (u->chans[i].channel) && (u2->chans[z].channel) && (u->registered == 7) && (u2->registered == 7))
 739                                 {
 740                                         if ((c_count(u)) && (c_count(u2)))
 741                                         {
 742                                                 return 1;
 743                                         }
 744                                 }
 745                         }
 746                 }
 747         }
 748         return 0;
 749 }
 750
 751 /* write a formatted string to all users who share at least one common
 752  * channel, including the source user e.g. for use in NICK */
 753
 754 void WriteCommon(userrec *u, char* text, ...)
 755 {
 756         if (!u)
 757         {
 758                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 759                 return;
 760         }
 761
 762         if (u->registered != 7) {
 763                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 764                 return;
 765         }
 766
 767         char textbuffer[MAXBUF];
 768         va_list argsPtr;
 769         va_start (argsPtr, text);
 770         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 771         va_end(argsPtr);
 772
 773         WriteFrom(u->fd,u,"%s",textbuffer);
 774
 775         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 776         {
 777                 if (i->second)
 778                 {
 779                         if (common_channels(u,i->second) && (i->second != u))
 780                         {
 781                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 782                         }
 783                 }
 784         }
 785 }
 786
 787 /* write a formatted string to all users who share at least one common
 788  * channel, NOT including the source user e.g. for use in QUIT */
 789
 790 void WriteCommonExcept(userrec *u, char* text, ...)
 791 {
 792         if (!u)
 793         {
 794                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 795                 return;
 796         }
 797
 798         if (u->registered != 7) {
 799                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 800                 return;
 801         }
 802
 803         char textbuffer[MAXBUF];
 804         va_list argsPtr;
 805         va_start (argsPtr, text);
 806         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 807         va_end(argsPtr);
 808
 809         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 810         {
 811                 if (i->second)
 812                 {
 813                         if ((common_channels(u,i->second)) && (u != i->second))
 814                         {
 815                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 816                         }
 817                 }
 818         }
 819 }
 820
 821 void WriteOpers(char* text, ...)
 822 {
 823         if (!text)
 824         {
 825                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 826                 return;
 827         }
 828
 829         char textbuffer[MAXBUF];
 830         va_list argsPtr;
 831         va_start (argsPtr, text);
 832         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 833         va_end(argsPtr);
 834
 835         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 836         {
 837                 if (i->second)
 838                 {
 839                         if (strchr(i->second->modes,'o'))
 840                         {
 841                                 if (strchr(i->second->modes,'s'))
 842                                 {
 843                                         // send server notices to all with +s
 844                                         // (TODO: needs SNOMASKs)
 845                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 846                                 }
 847                         }
 848                 }
 849         }
 850 }
 851
 852 // returns TRUE of any users on channel C occupy server 'servername'.
 853
 854 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 855 {
 856         log(DEBUG,"ChanAnyOnThisServer");
 857         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 858         {
 859                 if (has_channel(i->second,c))
 860                 {
 861                         if (!strcasecmp(i->second->server,servername))
 862                         {
 863                                 return true;
 864                         }
 865                 }
 866         }
 867         return false;
 868 }
 869
 870 // returns true if user 'u' shares any common channels with any users on server 'servername'
 871
 872 bool CommonOnThisServer(userrec* u,char* servername)
 873 {
 874         log(DEBUG,"ChanAnyOnThisServer");
 875         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 876         {
 877                 if ((common_channels(u,i->second)) && (u != i->second))
 878                 {
 879                         if (!strcasecmp(i->second->server,servername))
 880                         {
 881                                 return true;
 882                         }
 883                 }
 884         }
 885         return false;
 886 }
 887
 888
 889
 890 bool hasumode(userrec* user, char mode)
 891 {
 892         if (user)
 893         {
 894                 return (strchr(user->modes,mode)>0);
 895         }
 896         else return false;
 897 }
 898
 899 void WriteMode(const char* modes, int flags, const char* text, ...)
 900 {
 901         if ((!text) || (!modes) || (!flags))
 902         {
 903                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
 904                 return;
 905         }
 906
 907         char textbuffer[MAXBUF];
 908         va_list argsPtr;
 909         va_start (argsPtr, text);
 910         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 911         va_end(argsPtr);
 912
 913         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 914         {
 915                 if (i->second)
 916                 {
 917                         bool send_to_user = false;
 918
 919                         if (flags == WM_AND)
 920                         {
 921                                 send_to_user = true;
 922                                 for (int n = 0; n < strlen(modes); n++)
 923                                 {
 924                                         if (!hasumode(i->second,modes[n]))
 925                                         {
 926                                                 send_to_user = false;
 927                                                 break;
 928                                         }
 929                                 }
 930                         }
 931                         else if (flags == WM_OR)
 932                         {
 933                                 send_to_user = false;
 934                                 for (int n = 0; n < strlen(modes); n++)
 935                                 {
 936                                         if (hasumode(i->second,modes[n]))
 937                                         {
 938                                                 send_to_user = true;
 939                                                 break;
 940                                         }
 941                                 }
 942                         }
 943
 944                         if (send_to_user)
 945                         {
 946                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 947                         }
 948                 }
 949         }
 950 }
 951
 952 void WriteWallOps(userrec *source, char* text, ...)
 953 {
 954         if ((!text) || (!source))
 955         {
 956                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 957                 return;
 958         }
 959
 960         int i = 0;
 961         char textbuffer[MAXBUF];
 962         va_list argsPtr;
 963         va_start (argsPtr, text);
 964         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 965         va_end(argsPtr);
 966
 967         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 968         {
 969                 if (i->second)
 970                 {
 971                         if (strchr(i->second->modes,'w'))
 972                         {
 973                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
 974                         }
 975                 }
 976         }
 977 }
 978
 979 /* convert a string to lowercase. Note following special circumstances
 980  * taken from RFC 1459. Many "official" server branches still hold to this
 981  * rule so i will too;
 982  *
 983  *  Because of IRC's scandanavian origin, the characters {}| are
 984  *  considered to be the lower case equivalents of the characters []\,
 985  *  respectively. This is a critical issue when determining the
 986  *  equivalence of two nicknames.
 987  */
 988
 989 void strlower(char *n)
 990 {
 991         if (!n)
 992         {
 993                 return;
 994         }
 995         for (int i = 0; i != strlen(n); i++)
 996         {
 997                 n[i] = tolower(n[i]);
 998                 if (n[i] == '[')
 999                         n[i] = '{';
1000                 if (n[i] == ']')
1001                         n[i] = '}';
1002                 if (n[i] == '\\')
1003                         n[i] = '|';
1004         }
1005 }
1006
1007 /* verify that a user's ident and nickname is valid */
1008
1009 int isident(const char* n)
1010 {
1011         char v[MAXBUF];
1012         if (!n)
1013
1014         {
1015                 return 0;
1016         }
1017         if (!strcmp(n,""))
1018         {
1019                 return 0;
1020         }
1021         for (int i = 0; i != strlen(n); i++)
1022         {
1023                 if ((n[i] < 33) || (n[i] > 125))
1024                 {
1025                         return 0;
1026                 }
1027                 /* can't occur ANYWHERE in an Ident! */
1028                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1029                 {
1030                         return 0;
1031                 }
1032         }
1033         return 1;
1034 }
1035
1036
1037 int isnick(const char* n)
1038 {
1039         int i = 0;
1040         char v[MAXBUF];
1041         if (!n)
1042         {
1043                 return 0;
1044         }
1045         if (!strcmp(n,""))
1046         {
1047                 return 0;
1048         }
1049         if (strlen(n) > NICKMAX-1)
1050         {
1051                 return 0;
1052         }
1053         for (int i = 0; i != strlen(n); i++)
1054         {
1055                 if ((n[i] < 33) || (n[i] > 125))
1056                 {
1057                         return 0;
1058                 }
1059                 /* can't occur ANYWHERE in a nickname! */
1060                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1061                 {
1062                         return 0;
1063                 }
1064                 /* can't occur as the first char of a nickname... */
1065                 if ((strchr("0123456789",n[i])) && (!i))
1066                 {
1067                         return 0;
1068                 }
1069         }
1070         return 1;
1071 }
1072
1073 /* Find a user record by nickname and return a pointer to it */
1074
1075 userrec* Find(string nick)
1076 {
1077         user_hash::iterator iter = clientlist.find(nick);
1078
1079         if (iter == clientlist.end())
1080                 /* Couldn't find it */
1081                 return NULL;
1082
1083         return iter->second;
1084 }
1085
1086 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
1087 {
1088         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1089         {
1090                 if (i->second)
1091                 {
1092                         if (i->second->fd == fd)
1093                         {
1094                                 i->second->bytes_out+=data_out;
1095                                 i->second->cmds_out++;
1096                         }
1097                 }
1098         }
1099 }
1100
1101
1102 /* find a channel record by channel name and return a pointer to it */
1103
1104 chanrec* FindChan(const char* chan)
1105 {
1106         if (!chan)
1107         {
1108                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1109                 return NULL;
1110         }
1111
1112         chan_hash::iterator iter = chanlist.find(chan);
1113
1114         if (iter == chanlist.end())
1115                 /* Couldn't find it */
1116                 return NULL;
1117
1118         return iter->second;
1119 }
1120
1121
1122 void purge_empty_chans(void)
1123 {
1124         int go_again = 1, purge = 0;
1125
1126         while (go_again)
1127         {
1128                 go_again = 0;
1129                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1130                 {
1131                         if (i->second) {
1132                                 if (!usercount(i->second))
1133                                 {
1134                                         /* kill the record */
1135                                         if (i != chanlist.end())
1136                                         {
1137                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1138                                                 delete i->second;
1139                                                 chanlist.erase(i);
1140                                                 go_again = 1;
1141                                                 purge++;
1142                                                 break;
1143                                         }
1144                                 }
1145                                 else
1146                                 {
1147                                         log(DEBUG,"skipped purge for %s",i->second->name);
1148                                 }
1149                         }
1150                 }
1151         }
1152         log(DEBUG,"completed channel purge, killed %d",purge);
1153 }
1154
1155 /* returns the status character for a given user on a channel, e.g. @ for op,
1156  * % for halfop etc. If the user has several modes set, the highest mode
1157  * the user has must be returned. */
1158
1159 char* cmode(userrec *user, chanrec *chan)
1160 {
1161         if ((!user) || (!chan))
1162         {
1163                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1164                 return "";
1165         }
1166
1167         int i;
1168         for (int i = 0; i != MAXCHANS; i++)
1169         {
1170                 if ((user->chans[i].channel == chan) && (chan != NULL))
1171                 {
1172                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1173                         {
1174                                 return "@";
1175                         }
1176                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1177                         {
1178                                 return "%";
1179                         }
1180                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1181                         {
1182                                 return "+";
1183                         }
1184                         return "";
1185                 }
1186         }
1187 }
1188
1189 char scratch[MAXBUF];
1190 char sparam[MAXBUF];
1191
1192 char* chanmodes(chanrec *chan)
1193 {
1194         if (!chan)
1195         {
1196                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1197                 strcpy(scratch,"");
1198                 return scratch;
1199         }
1200
1201         strcpy(scratch,"");
1202         strcpy(sparam,"");
1203         if (chan->noexternal)
1204         {
1205                 strncat(scratch,"n",MAXMODES);
1206         }
1207         if (chan->topiclock)
1208         {
1209                 strncat(scratch,"t",MAXMODES);
1210         }
1211         if (strcmp(chan->key,""))
1212         {
1213                 strncat(scratch,"k",MAXMODES);
1214         }
1215         if (chan->limit)
1216         {
1217                 strncat(scratch,"l",MAXMODES);
1218         }
1219         if (chan->inviteonly)
1220         {
1221                 strncat(scratch,"i",MAXMODES);
1222         }
1223         if (chan->moderated)
1224         {
1225                 strncat(scratch,"m",MAXMODES);
1226         }
1227         if (chan->secret)
1228         {
1229                 strncat(scratch,"s",MAXMODES);
1230         }
1231         if (chan->c_private)
1232         {
1233                 strncat(scratch,"p",MAXMODES);
1234         }
1235         if (strcmp(chan->key,""))
1236         {
1237                 strncat(sparam,chan->key,MAXBUF);
1238         }
1239         if (chan->limit)
1240         {
1241                 char foo[24];
1242                 sprintf(foo," %d",chan->limit);
1243                 strncat(sparam,foo,MAXBUF);
1244         }
1245         if (strlen(chan->custom_modes))
1246         {
1247                 strncat(scratch,chan->custom_modes,MAXMODES);
1248                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1249                 {
1250                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1251                         if (extparam != "")
1252                         {
1253                                 strncat(sparam," ",MAXBUF);
1254                                 strncat(sparam,extparam.c_str(),MAXBUF);
1255                         }
1256                 }
1257         }
1258         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1259         strncat(scratch,sparam,MAXMODES);
1260         return scratch;
1261 }
1262
1263 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1264  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1265  * highest mode the user has must be returned. */
1266
1267 int cstatus(userrec *user, chanrec *chan)
1268 {
1269         if ((!chan) || (!user))
1270         {
1271                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1272                 return 0;
1273         }
1274
1275         for (int i = 0; i != MAXCHANS; i++)
1276         {
1277                 if ((user->chans[i].channel == chan) && (chan != NULL))
1278                 {
1279                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1280                         {
1281                                 return STATUS_OP;
1282                         }
1283                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1284                         {
1285                                 return STATUS_HOP;
1286                         }
1287                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1288                         {
1289                                 return STATUS_VOICE;
1290                         }
1291                         return STATUS_NORMAL;
1292                 }
1293         }
1294 }
1295
1296
1297 /* compile a userlist of a channel into a string, each nick seperated by
1298  * spaces and op, voice etc status shown as @ and + */
1299
1300 void userlist(userrec *user,chanrec *c)
1301 {
1302         if ((!c) || (!user))
1303         {
1304                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1305                 return;
1306         }
1307
1308         sprintf(list,"353 %s = %s :", user->nick, c->name);
1309         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1310         {
1311                 if (has_channel(i->second,c))
1312                 {
1313                         if (isnick(i->second->nick))
1314                         {
1315                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1316                                 {
1317                                         /* user is +i, and source not on the channel, does not show
1318                                          * nick in NAMES list */
1319                                         continue;
1320                                 }
1321                                 strcat(list,cmode(i->second,c));
1322                                 strcat(list,i->second->nick);
1323                                 strcat(list," ");
1324                                 if (strlen(list)>(480-NICKMAX))
1325                                 {
1326                                         /* list overflowed into
1327                                          * multiple numerics */
1328                                         WriteServ(user->fd,list);
1329                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1330                                 }
1331                         }
1332                 }
1333         }
1334         /* if whats left in the list isnt empty, send it */
1335         if (list[strlen(list)-1] != ':')
1336         {
1337                 WriteServ(user->fd,list);
1338         }
1339 }
1340
1341 /* return a count of the users on a specific channel accounting for
1342  * invisible users who won't increase the count. e.g. for /LIST */
1343
1344 int usercount_i(chanrec *c)
1345 {
1346         int i = 0;
1347         int count = 0;
1348
1349         if (!c)
1350         {
1351                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1352                 return 0;
1353         }
1354
1355         strcpy(list,"");
1356         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1357         {
1358                 if (i->second)
1359                 {
1360                         if (has_channel(i->second,c))
1361                         {
1362                                 if (isnick(i->second->nick))
1363                                 {
1364                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1365                                         {
1366                                                 /* user is +i, and source not on the channel, does not show
1367                                                  * nick in NAMES list */
1368                                                 continue;
1369                                         }
1370                                         count++;
1371                                 }
1372                         }
1373                 }
1374         }
1375         log(DEBUG,"usercount_i: %s %d",c->name,count);
1376         return count;
1377 }
1378
1379
1380 int usercount(chanrec *c)
1381 {
1382         int i = 0;
1383         int count = 0;
1384
1385         if (!c)
1386         {
1387                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1388                 return 0;
1389         }
1390
1391         strcpy(list,"");
1392         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1393         {
1394                 if (i->second)
1395                 {
1396                         if (has_channel(i->second,c))
1397                         {
1398                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1399                                 {
1400                                         count++;
1401                                 }
1402                         }
1403                 }
1404         }
1405         log(DEBUG,"usercount: %s %d",c->name,count);
1406         return count;
1407 }
1408
1409
1410 /* add a channel to a user, creating the record for it if needed and linking
1411  * it to the user record */
1412
1413 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1414 {
1415         if ((!user) || (!cn))
1416         {
1417                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1418                 return 0;
1419         }
1420
1421         int i = 0;
1422         chanrec* Ptr;
1423         int created = 0;
1424         char cname[MAXBUF];
1425
1426         strncpy(cname,cn,MAXBUF);
1427
1428         // we MUST declare this wherever we use FOREACH_RESULT
1429         int MOD_RESULT = 0;
1430
1431         if (strlen(cname) > CHANMAX-1)
1432         {
1433                 cname[CHANMAX-1] = '\0';
1434         }
1435
1436         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1437
1438         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1439         {
1440                 return NULL; // already on the channel!
1441         }
1442
1443
1444         if (!FindChan(cname))
1445         {
1446                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1447                 if (MOD_RESULT) {
1448                         return NULL;
1449                 }
1450
1451                 /* create a new one */
1452                 log(DEBUG,"add_channel: creating: %s",cname);
1453                 {
1454                         chanlist[cname] = new chanrec();
1455
1456                         strcpy(chanlist[cname]->name, cname);
1457                         chanlist[cname]->topiclock = 1;
1458                         chanlist[cname]->noexternal = 1;
1459                         chanlist[cname]->created = time(NULL);
1460                         strcpy(chanlist[cname]->topic, "");
1461                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1462                         chanlist[cname]->topicset = 0;
1463                         Ptr = chanlist[cname];
1464                         log(DEBUG,"add_channel: created: %s",cname);
1465                         /* set created to 2 to indicate user
1466                          * is the first in the channel
1467                          * and should be given ops */
1468                         created = 2;
1469                 }
1470         }
1471         else
1472         {
1473                 /* channel exists, just fish out a pointer to its struct */
1474                 Ptr = FindChan(cname);
1475                 if (Ptr)
1476                 {
1477                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1478
1479                         // the override flag allows us to bypass channel modes
1480                         // and bans (used by servers)
1481                         if (!override)
1482                         {
1483                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1484                                 if (MOD_RESULT) {
1485                                         return NULL;
1486                                 }
1487
1488                                 if (strcmp(Ptr->key,""))
1489                                 {
1490                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1491                                         if (!key)
1492                                         {
1493                                                 log(DEBUG,"add_channel: no key given in JOIN");
1494                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1495                                                 return NULL;
1496                                         }
1497                                         else
1498                                         {
1499                                                 log(DEBUG,"key at %p is %s",key,key);
1500                                                 if (strcasecmp(key,Ptr->key))
1501                                                 {
1502                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1503                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1504                                                         return NULL;
1505                                                 }
1506                                         }
1507                                 }
1508                                 log(DEBUG,"add_channel: no key");
1509
1510                                 if (Ptr->inviteonly)
1511                                 {
1512                                         log(DEBUG,"add_channel: channel is +i");
1513                                         if (user->IsInvited(Ptr->name))
1514                                         {
1515                                                 /* user was invited to channel */
1516                                                 /* there may be an optional channel NOTICE here */
1517                                         }
1518                                         else
1519                                         {
1520                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1521                                                 return NULL;
1522                                         }
1523                                 }
1524                                 log(DEBUG,"add_channel: channel is not +i");
1525
1526                                 if (Ptr->limit)
1527                                 {
1528                                         if (usercount(Ptr) == Ptr->limit)
1529                                         {
1530                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1531                                                 return NULL;
1532                                         }
1533                                 }
1534
1535                                 log(DEBUG,"add_channel: about to walk banlist");
1536
1537                                 /* check user against the channel banlist */
1538                                 if (Ptr)
1539                                 {
1540                                         if (Ptr->bans.size())
1541                                         {
1542                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1543                                                 {
1544                                                         if (match(user->GetFullHost(),i->data))
1545                                                         {
1546                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1547                                                                 return NULL;
1548                                                         }
1549                                                 }
1550                                         }
1551                                 }
1552
1553                                 log(DEBUG,"add_channel: bans checked");
1554
1555
1556                                 if ((Ptr) && (user))
1557                                 {
1558                                         user->RemoveInvite(Ptr->name);
1559                                 }
1560
1561                                 log(DEBUG,"add_channel: invites removed");
1562
1563                         }
1564                         else
1565                         {
1566                                 log(DEBUG,"Overridden checks");
1567                         }
1568
1569
1570                 }
1571                 created = 1;
1572         }
1573
1574         log(DEBUG,"Passed channel checks");
1575
1576         for (int i =0; i != MAXCHANS; i++)
1577         {
1578                 log(DEBUG,"Check location %d",i);
1579                 if (user->chans[i].channel == NULL)
1580                 {
1581                         log(DEBUG,"Adding into their channel list at location %d",i);
1582
1583                         if (created == 2)
1584                         {
1585                                 /* first user in is given ops */
1586                                 user->chans[i].uc_modes = UCMODE_OP;
1587                         }
1588                         else
1589                         {
1590                                 user->chans[i].uc_modes = 0;
1591                         }
1592                         user->chans[i].channel = Ptr;
1593                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1594
1595                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1596                         {
1597                                 // use the stamdard J token with no privilages.
1598                                 char buffer[MAXBUF];
1599                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1600                                 for (int j = 0; j < 255; j++)
1601                                 {
1602                                         if (servers[j] != NULL)
1603                                         {
1604                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1605                                                 log(DEBUG,"Sent J token");
1606                                         }
1607                                 }
1608                         }
1609
1610                         log(DEBUG,"Sent JOIN to client");
1611
1612                         if (Ptr->topicset)
1613                         {
1614                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1615                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1616                         }
1617                         userlist(user,Ptr);
1618                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1619                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1620                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1621                         FOREACH_MOD OnUserJoin(user,Ptr);
1622                         return Ptr;
1623                 }
1624         }
1625         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1626         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1627         return NULL;
1628 }
1629
1630 /* remove a channel from a users record, and remove the record from memory
1631  * if the channel has become empty */
1632
1633 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1634 {
1635         if ((!user) || (!cname))
1636         {
1637                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1638                 return NULL;
1639         }
1640
1641         chanrec* Ptr;
1642         int created = 0;
1643
1644         if ((!cname) || (!user))
1645         {
1646                 return NULL;
1647         }
1648
1649         Ptr = FindChan(cname);
1650
1651         if (!Ptr)
1652         {
1653                 return NULL;
1654         }
1655
1656         FOREACH_MOD OnUserPart(user,Ptr);
1657         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1658
1659         for (int i =0; i != MAXCHANS; i++)
1660         {
1661                 /* zap it from the channel list of the user */
1662                 if (user->chans[i].channel == Ptr)
1663                 {
1664                         if (reason)
1665                         {
1666                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1667
1668                                 if (!local)
1669                                 {
1670                                         char buffer[MAXBUF];
1671                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1672                                         for (int j = 0; j < 255; j++)
1673                                         {
1674                                                 if (servers[j] != NULL)
1675                                                 {
1676                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1677                                                         log(DEBUG,"Sent L token (with reason)");
1678                                                 }
1679                                         }
1680                                 }
1681
1682
1683                         }
1684                         else
1685                         {
1686                                 if (!local)
1687                                 {
1688                                         char buffer[MAXBUF];
1689                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1690                                         for (int j = 0; j < 255; j++)
1691                                         {
1692                                                 if (servers[j] != NULL)
1693                                                 {
1694                                                 if (ChanAnyOnThisServer(Ptr,servers[j]->name))
1695                                                         {
1696                                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1697                                                                 log(DEBUG,"Sent L token (no reason)");
1698                                                         }
1699                                                 }
1700                                         }
1701                                 }
1702
1703                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1704                         }
1705                         user->chans[i].uc_modes = 0;
1706                         user->chans[i].channel = NULL;
1707                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1708                         break;
1709                 }
1710         }
1711
1712         /* if there are no users left on the channel */
1713         if (!usercount(Ptr))
1714         {
1715                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1716
1717                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1718
1719                 /* kill the record */
1720                 if (iter != chanlist.end())
1721                 {
1722                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1723                         delete iter->second;
1724                         chanlist.erase(iter);
1725                 }
1726         }
1727 }
1728
1729
1730 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1731 {
1732         if ((!src) || (!user) || (!Ptr) || (!reason))
1733         {
1734                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1735                 return;
1736         }
1737
1738         int i = 0;
1739         int created = 0;
1740
1741         if ((!Ptr) || (!user) || (!src))
1742         {
1743                 return;
1744         }
1745
1746         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1747
1748         if (!has_channel(user,Ptr))
1749         {
1750                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1751                 return;
1752         }
1753         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1754         {
1755                 if (cstatus(src,Ptr) == STATUS_HOP)
1756                 {
1757                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1758                 }
1759                 else
1760                 {
1761                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1762                 }
1763
1764                 return;
1765         }
1766
1767         for (int i =0; i != MAXCHANS; i++)
1768         {
1769                 /* zap it from the channel list of the user */
1770                 if (user->chans[i].channel == Ptr)
1771                 {
1772                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1773                         user->chans[i].uc_modes = 0;
1774                         user->chans[i].channel = NULL;
1775                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1776                         break;
1777                 }
1778         }
1779
1780         /* if there are no users left on the channel */
1781         if (!usercount(Ptr))
1782         {
1783                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1784
1785                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1786
1787                 /* kill the record */
1788                 if (iter != chanlist.end())
1789                 {
1790                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1791                         delete iter->second;
1792                         chanlist.erase(iter);
1793                 }
1794         }
1795 }
1796
1797
1798 /* returns 1 if user u has channel c in their record, 0 if not */
1799
1800 int has_channel(userrec *u, chanrec *c)
1801 {
1802         if ((!u) || (!c))
1803         {
1804                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1805                 return 0;
1806         }
1807         for (int i =0; i != MAXCHANS; i++)
1808         {
1809                 if (u->chans[i].channel == c)
1810                 {
1811                         return 1;
1812                 }
1813         }
1814         return 0;
1815 }
1816
1817 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1818 {
1819         userrec *d;
1820         int i;
1821
1822         if ((!user) || (!dest) || (!chan))
1823         {
1824                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1825                 return 0;
1826         }
1827         if (status < STATUS_OP)
1828         {
1829                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1830                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1831                 return 0;
1832         }
1833         else
1834         {
1835                 if (!isnick(dest))
1836                 {
1837                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1838                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1839                         return 0;
1840                 }
1841                 d = Find(dest);
1842                 if (!d)
1843                 {
1844                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1845                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1846                         return 0;
1847                 }
1848                 else
1849                 {
1850                         for (int i = 0; i != MAXCHANS; i++)
1851                         {
1852                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1853                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1854                                 {
1855                                         if (d->chans[i].uc_modes & UCMODE_OP)
1856                                         {
1857                                                 /* mode already set on user, dont allow multiple */
1858                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1859                                                 return 0;
1860                                         }
1861                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1862                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1863                                         return 1;
1864                                 }
1865                         }
1866                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1867                 }
1868         }
1869         return 1;
1870 }
1871
1872 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1873 {
1874         userrec *d;
1875         int i;
1876
1877         if ((!user) || (!dest) || (!chan))
1878         {
1879                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1880                 return 0;
1881         }
1882         if (status != STATUS_OP)
1883         {
1884                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1885                 return 0;
1886         }
1887         else
1888         {
1889                 d = Find(dest);
1890                 if (!isnick(dest))
1891                 {
1892                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1893                         return 0;
1894                 }
1895                 if (!d)
1896                 {
1897                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1898                         return 0;
1899                 }
1900                 else
1901                 {
1902                         for (int i = 0; i != MAXCHANS; i++)
1903                         {
1904                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1905                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1906                                 {
1907                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1908                                         {
1909                                                 /* mode already set on user, dont allow multiple */
1910                                                 return 0;
1911                                         }
1912                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1913                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1914                                         return 1;
1915                                 }
1916                         }
1917                 }
1918         }
1919         return 1;
1920 }
1921
1922 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1923 {
1924         userrec *d;
1925         int i;
1926
1927         if ((!user) || (!dest) || (!chan))
1928         {
1929                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1930                 return 0;
1931         }
1932         if (status < STATUS_HOP)
1933         {
1934                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1935                 return 0;
1936         }
1937         else
1938         {
1939                 d = Find(dest);
1940                 if (!isnick(dest))
1941                 {
1942                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1943                         return 0;
1944                 }
1945                 if (!d)
1946                 {
1947                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1948                         return 0;
1949                 }
1950                 else
1951                 {
1952                         for (int i = 0; i != MAXCHANS; i++)
1953                         {
1954                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1955                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1956                                 {
1957                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1958                                         {
1959                                                 /* mode already set on user, dont allow multiple */
1960                                                 return 0;
1961                                         }
1962                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1963                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1964                                         return 1;
1965                                 }
1966                         }
1967                 }
1968         }
1969         return 1;
1970 }
1971
1972 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1973 {
1974         userrec *d;
1975         int i;
1976
1977         if ((!user) || (!dest) || (!chan))
1978         {
1979                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1980                 return 0;
1981         }
1982         if (status < STATUS_OP)
1983         {
1984                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
1985                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1986                 return 0;
1987         }
1988         else
1989         {
1990                 d = Find(dest);
1991                 if (!isnick(dest))
1992                 {
1993                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
1994                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1995                         return 0;
1996                 }
1997                 if (!d)
1998                 {
1999                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
2000                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2001                         return 0;
2002                 }
2003                 else
2004                 {
2005                         for (int i = 0; i != MAXCHANS; i++)
2006                         {
2007                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2008                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2009                                 {
2010                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2011                                         {
2012                                                 /* mode already set on user, dont allow multiple */
2013                                                 return 0;
2014                                         }
2015                                         d->chans[i].uc_modes ^= UCMODE_OP;
2016                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2017                                         return 1;
2018                                 }
2019                         }
2020                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
2021                 }
2022         }
2023         return 1;
2024 }
2025
2026 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2027 {
2028         userrec *d;
2029         int i;
2030
2031         if ((!user) || (!dest) || (!chan))
2032         {
2033                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2034                 return 0;
2035         }
2036         if (status != STATUS_OP)
2037         {
2038                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2039                 return 0;
2040         }
2041         else
2042         {
2043                 d = Find(dest);
2044                 if (!isnick(dest))
2045                 {
2046                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2047                         return 0;
2048                 }
2049                 if (!d)
2050                 {
2051                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2052                         return 0;
2053                 }
2054                 else
2055                 {
2056                         for (int i = 0; i != MAXCHANS; i++)
2057                         {
2058                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2059                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2060                                 {
2061                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2062                                         {
2063                                                 /* mode already set on user, dont allow multiple */
2064                                                 return 0;
2065                                         }
2066                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2067                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2068                                         return 1;
2069                                 }
2070                         }
2071                 }
2072         }
2073         return 1;
2074 }
2075
2076 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2077 {
2078         userrec *d;
2079         int i;
2080
2081         if ((!user) || (!dest) || (!chan))
2082         {
2083                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2084                 return 0;
2085         }
2086         if (status < STATUS_HOP)
2087         {
2088                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2089                 return 0;
2090         }
2091         else
2092         {
2093                 d = Find(dest);
2094                 if (!isnick(dest))
2095                 {
2096                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2097                         return 0;
2098                 }
2099                 if (!d)
2100                 {
2101                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2102                         return 0;
2103                 }
2104                 else
2105                 {
2106                         for (int i = 0; i != MAXCHANS; i++)
2107                         {
2108                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2109                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2110                                 {
2111                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2112                                         {
2113                                                 /* mode already set on user, dont allow multiple */
2114                                                 return 0;
2115                                         }
2116                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2117                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2118                                         return 1;
2119                                 }
2120                         }
2121                 }
2122         }
2123         return 1;
2124 }
2125
2126 void TidyBan(char *ban)
2127 {
2128         if (!ban) {
2129                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2130                 return;
2131         }
2132
2133         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2134
2135         strcpy(temp,ban);
2136
2137         char* pos_of_pling = strchr(temp,'!');
2138         char* pos_of_at = strchr(temp,'@');
2139
2140         pos_of_pling[0] = '\0';
2141         pos_of_at[0] = '\0';
2142         pos_of_pling++;
2143         pos_of_at++;
2144
2145         strncpy(NICK,temp,NICKMAX);
2146         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2147         strncpy(HOST,pos_of_at,160);
2148
2149         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2150 }
2151
2152 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2153 {
2154         if ((!user) || (!dest) || (!chan)) {
2155                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2156                 return 0;
2157         }
2158
2159         BanItem b;
2160         if ((!user) || (!dest) || (!chan))
2161                 return 0;
2162         if (strchr(dest,'!')==0)
2163                 return 0;
2164         if (strchr(dest,'@')==0)
2165                 return 0;
2166         for (int i = 0; i < strlen(dest); i++)
2167                 if (dest[i] < 32)
2168                         return 0;
2169         for (int i = 0; i < strlen(dest); i++)
2170                 if (dest[i] > 126)
2171                         return 0;
2172         int c = 0;
2173         for (int i = 0; i < strlen(dest); i++)
2174                 if (dest[i] == '!')
2175                         c++;
2176         if (c>1)
2177                 return 0;
2178         c = 0;
2179         for (int i = 0; i < strlen(dest); i++)
2180                 if (dest[i] == '@')
2181                         c++;
2182         if (c>1)
2183                 return 0;
2184         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2185
2186         TidyBan(dest);
2187         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2188         {
2189                 if (!strcasecmp(i->data,dest))
2190                 {
2191                         // dont allow a user to set the same ban twice
2192                         return 0;
2193                 }
2194         }
2195
2196         b.set_time = time(NULL);
2197         strncpy(b.data,dest,MAXBUF);
2198         strncpy(b.set_by,user->nick,NICKMAX);
2199         chan->bans.push_back(b);
2200         return 1;
2201 }
2202
2203 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2204 {
2205         if ((!user) || (!dest) || (!chan)) {
2206                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2207                 return 0;
2208         }
2209
2210         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2211         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2212         {
2213                 if (!strcasecmp(i->data,dest))
2214                 {
2215                         chan->bans.erase(i);
2216                         return 1;
2217                 }
2218         }
2219         return 0;
2220 }
2221
2222 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2223 {
2224         if (!parameters) {
2225                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2226                 return;
2227         }
2228
2229         char modelist[MAXBUF];
2230         char outlist[MAXBUF];
2231         char outstr[MAXBUF];
2232         char outpars[32][MAXBUF];
2233         int param = 2;
2234         int pc = 0;
2235         int ptr = 0;
2236         int mdir = 1;
2237         int r = 0;
2238         bool k_set = false, l_set = false;
2239
2240         if (pcnt < 2)
2241         {
2242                 return;
2243         }
2244
2245         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2246
2247         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2248                                         /* parameters[2] onwards are parameters for
2249                                          * modes that require them :) */
2250         strcpy(outlist,"+");
2251         mdir = 1;
2252
2253         log(DEBUG,"process_modes: modelist: %s",modelist);
2254
2255         for (ptr = 0; ptr < strlen(modelist); ptr++)
2256         {
2257                 r = 0;
2258
2259                 {
2260                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2261                         char modechar = modelist[ptr];
2262                         switch (modelist[ptr])
2263                         {
2264                                 case '-':
2265                                         if (mdir != 0)
2266                                         {
2267                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2268                                                 {
2269                                                         outlist[strlen(outlist)-1] = '-';
2270                                                 }
2271                                                 else
2272                                                 {
2273                                                         strcat(outlist,"-");
2274                                                 }
2275                                         }
2276                                         mdir = 0;
2277
2278                                 break;
2279
2280                                 case '+':
2281                                         if (mdir != 1)
2282                                         {
2283                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2284                                                 {
2285                                                         outlist[strlen(outlist)-1] = '+';
2286                                                 }
2287                                                 else
2288                                                 {
2289                                                         strcat(outlist,"+");
2290                                                 }
2291                                         }
2292                                         mdir = 1;
2293                                 break;
2294
2295                                 case 'o':
2296                                         log(DEBUG,"Ops");
2297                                         if ((param >= pcnt)) break;
2298                                         log(DEBUG,"Enough parameters left");
2299                                         if (mdir == 1)
2300                                         {
2301                                                 log(DEBUG,"calling give_ops");
2302                                                 r = give_ops(user,parameters[param++],chan,status);
2303                                         }
2304                                         else
2305                                         {
2306                                                 log(DEBUG,"calling take_ops");
2307                                                 r = take_ops(user,parameters[param++],chan,status);
2308                                         }
2309                                         if (r)
2310                                         {
2311                                                 strcat(outlist,"o");
2312                                                 strcpy(outpars[pc++],parameters[param-1]);
2313                                         }
2314                                 break;
2315
2316                                 case 'h':
2317                                         if ((param >= pcnt)) break;
2318                                         if (mdir == 1)
2319                                         {
2320                                                 r = give_hops(user,parameters[param++],chan,status);
2321                                         }
2322                                         else
2323                                         {
2324                                                 r = take_hops(user,parameters[param++],chan,status);
2325                                         }
2326                                         if (r)
2327                                         {
2328                                                 strcat(outlist,"h");
2329                                                 strcpy(outpars[pc++],parameters[param-1]);
2330                                         }
2331                                 break;
2332
2333
2334                                 case 'v':
2335                                         if ((param >= pcnt)) break;
2336                                         if (mdir == 1)
2337                                         {
2338                                                 r = give_voice(user,parameters[param++],chan,status);
2339                                         }
2340                                         else
2341                                         {
2342                                                 r = take_voice(user,parameters[param++],chan,status);
2343                                         }
2344                                         if (r)
2345                                         {
2346                                                 strcat(outlist,"v");
2347                                                 strcpy(outpars[pc++],parameters[param-1]);
2348                                         }
2349                                 break;
2350
2351                                 case 'b':
2352                                         if ((param >= pcnt)) break;
2353                                         if (mdir == 1)
2354                                         {
2355                                                 r = add_ban(user,parameters[param++],chan,status);
2356                                         }
2357                                         else
2358                                         {
2359                                                 r = take_ban(user,parameters[param++],chan,status);
2360                                         }
2361                                         if (r)
2362                                         {
2363                                                 strcat(outlist,"b");
2364                                                 strcpy(outpars[pc++],parameters[param-1]);
2365                                         }
2366                                 break;
2367
2368
2369                                 case 'k':
2370                                         if ((param >= pcnt))
2371                                                 break;
2372
2373                                         if (mdir == 1)
2374                                         {
2375                                                 if (k_set)
2376                                                         break;
2377
2378                                                 if (!strcmp(chan->key,""))
2379                                                 {
2380                                                         strcat(outlist,"k");
2381                                                         char key[MAXBUF];
2382                                                         strcpy(key,parameters[param++]);
2383                                                         if (strlen(key)>32) {
2384                                                                 key[31] = '\0';
2385                                                         }
2386                                                         strcpy(outpars[pc++],key);
2387                                                         strcpy(chan->key,key);
2388                                                         k_set = true;
2389                                                 }
2390                                         }
2391                                         else
2392                                         {
2393                                                 /* checks on -k are case sensitive and only accurate to the
2394                                                    first 32 characters */
2395                                                 char key[MAXBUF];
2396                                                 strcpy(key,parameters[param++]);
2397                                                 if (strlen(key)>32) {
2398                                                         key[31] = '\0';
2399                                                 }
2400                                                 /* only allow -k if correct key given */
2401                                                 if (!strcmp(chan->key,key))
2402                                                 {
2403                                                         strcat(outlist,"k");
2404                                                         strcpy(chan->key,"");
2405                                                         strcpy(outpars[pc++],key);
2406                                                 }
2407                                         }
2408                                 break;
2409
2410                                 case 'l':
2411                                         if (mdir == 0)
2412                                         {
2413                                                 if (chan->limit)
2414                                                 {
2415                                                         strcat(outlist,"l");
2416                                                         chan->limit = 0;
2417                                                 }
2418                                         }
2419
2420                                         if ((param >= pcnt)) break;
2421                                         if (mdir == 1)
2422                                         {
2423                                                 if (l_set)
2424                                                         break;
2425
2426                                                 bool invalid = false;
2427                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2428                                                 {
2429                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2430                                                         {
2431                                                                 invalid = true;
2432                                                         }
2433                                                 }
2434                                                 if (atoi(parameters[param]) < 1)
2435                                                 {
2436                                                         invalid = true;
2437                                                 }
2438
2439                                                 if (invalid)
2440                                                         break;
2441
2442                                                 chan->limit = atoi(parameters[param]);
2443                                                 if (chan->limit)
2444                                                 {
2445                                                         strcat(outlist,"l");
2446                                                         strcpy(outpars[pc++],parameters[param++]);
2447                                                         l_set = true;
2448                                                 }
2449                                         }
2450                                 break;
2451
2452                                 case 'i':
2453                                         if (chan->inviteonly != mdir)
2454                                         {
2455                                                 strcat(outlist,"i");
2456                                         }
2457                                         chan->inviteonly = mdir;
2458                                 break;
2459
2460                                 case 't':
2461                                         if (chan->topiclock != mdir)
2462                                         {
2463                                                 strcat(outlist,"t");
2464                                         }
2465                                         chan->topiclock = mdir;
2466                                 break;
2467
2468                                 case 'n':
2469                                         if (chan->noexternal != mdir)
2470                                         {
2471                                                 strcat(outlist,"n");
2472                                         }
2473                                         chan->noexternal = mdir;
2474                                 break;
2475
2476                                 case 'm':
2477                                         if (chan->moderated != mdir)
2478                                         {
2479                                                 strcat(outlist,"m");
2480                                         }
2481                                         chan->moderated = mdir;
2482                                 break;
2483
2484                                 case 's':
2485                                         if (chan->secret != mdir)
2486                                         {
2487                                                 strcat(outlist,"s");
2488                                                 if (chan->c_private)
2489                                                 {
2490                                                         chan->c_private = 0;
2491                                                         if (mdir)
2492                                                         {
2493                                                                 strcat(outlist,"-p+");
2494                                                         }
2495                                                         else
2496                                                         {
2497                                                                 strcat(outlist,"+p-");
2498                                                         }
2499                                                 }
2500                                         }
2501                                         chan->secret = mdir;
2502                                 break;
2503
2504                                 case 'p':
2505                                         if (chan->c_private != mdir)
2506                                         {
2507                                                 strcat(outlist,"p");
2508                                                 if (chan->secret)
2509                                                 {
2510                                                         chan->secret = 0;
2511                                                         if (mdir)
2512                                                         {
2513                                                                 strcat(outlist,"-s+");
2514                                                         }
2515                                                         else
2516                                                         {
2517                                                                 strcat(outlist,"+s-");
2518                                                         }
2519                                                 }
2520                                         }
2521                                         chan->c_private = mdir;
2522                                 break;
2523
2524                                 default:
2525                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2526                                         string_list p;
2527                                         p.clear();
2528                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2529                                         {
2530                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2531                                                 break;
2532                                         }
2533                                         if (ModeDefined(modechar,MT_CHANNEL))
2534                                         {
2535                                                 log(DEBUG,"A module has claimed this mode");
2536                                                 if (param<pcnt)
2537                                                 {
2538                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2539                                                         {
2540                                                                 p.push_back(parameters[param]);
2541                                                         }
2542                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2543                                                         {
2544                                                                 p.push_back(parameters[param]);
2545                                                         }
2546                                                 }
2547                                                 bool handled = false;
2548                                                 if (param>=pcnt)
2549                                                 {
2550                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2551                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2552                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2553                                                         {
2554                                                                 handled = true;
2555                                                                 param++;
2556                                                         }
2557                                                 }
2558                                                 for (int i = 0; i <= MODCOUNT; i++)
2559                                                 {
2560                                                         if (!handled)
2561                                                         {
2562                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2563                                                                 {
2564                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2565                                                                         char app[] = {modechar, 0};
2566                                                                         if (ptr>0)
2567                                                                         {
2568                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2569                                                                                 {
2570                                                                                         strcat(outlist, app);
2571                                                                                 }
2572                                                                                 else if (!strchr(outlist,modechar))
2573                                                                                 {
2574                                                                                         strcat(outlist, app);
2575                                                                                 }
2576                                                                         }
2577                                                                         chan->SetCustomMode(modechar,mdir);
2578                                                                         // include parameters in output if mode has them
2579                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2580                                                                         {
2581                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2582                                                                                 strcpy(outpars[pc++],parameters[param++]);
2583                                                                         }
2584                                                                         // break, because only one module can handle the mode.
2585                                                                         handled = true;
2586                                                                 }
2587                                                         }
2588                                                 }
2589                                         }
2590                                 break;
2591
2592                         }
2593                 }
2594         }
2595
2596         /* this ensures only the *valid* modes are sent out onto the network */
2597         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2598         {
2599                 outlist[strlen(outlist)-1] = '\0';
2600         }
2601         if (strcmp(outlist,""))
2602         {
2603                 strcpy(outstr,outlist);
2604                 for (ptr = 0; ptr < pc; ptr++)
2605                 {
2606                         strcat(outstr," ");
2607                         strcat(outstr,outpars[ptr]);
2608                 }
2609                 if (local)
2610                 {
2611                         log(DEBUG,"Local mode change");
2612                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2613                 }
2614                 else
2615                 {
2616                         if (servermode)
2617                         {
2618                                 if (!silent)
2619                                 {
2620                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2621                                         // M token for a usermode must go to all servers
2622                                         char buffer[MAXBUF];
2623                                         snprintf(buffer,MAXBUF,"M %s %s",ServerName,chan->name, outstr);
2624                                         for (int j = 0; j < 255; j++)
2625                                         {
2626                                                 if (servers[j] != NULL)
2627                                                 {
2628                                                         if (strcmp(servers[j]->name,ServerName))
2629                                                         {
2630                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2631                                                                 {
2632                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2633                                                                         log(DEBUG,"Sent M token");
2634                                                                 }
2635                                                         }
2636                                                 }
2637                                         }
2638                                 }
2639
2640                         }
2641                         else
2642                         {
2643                                 if (!silent)
2644                                 {
2645                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2646                                         // M token for a usermode must go to all servers
2647                                         char buffer[MAXBUF];
2648                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2649                                         for (int j = 0; j < 255; j++)
2650                                         {
2651                                                 if (servers[j] != NULL)
2652                                                 {
2653                                                         if (strcmp(servers[j]->name,ServerName))
2654                                                         {
2655                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2656                                                                 {
2657                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2658                                                                         log(DEBUG,"Sent m token");
2659                                                                 }
2660                                                         }
2661                                                 }
2662                                         }
2663                                 }
2664                         }
2665                 }
2666         }
2667 }
2668
2669 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2670
2671 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2672 {
2673         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2674         // RFC1459 specified modes
2675         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2676         {
2677                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2678                 return true;
2679         }
2680
2681         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2682         if ((strchr(sourcemodes,'o')) && (!adding))
2683         {
2684                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2685                 return true;
2686         }
2687         else if (umode == 'o')
2688         {
2689                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2690                 return false;
2691         }
2692
2693         // process any module-defined modes that need oper
2694         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2695         {
2696                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2697                 return true;
2698         }
2699         else
2700         if (ModeDefined(umode,MT_CLIENT))
2701         {
2702                 // process any module-defined modes that don't need oper
2703                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2704                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2705                 {
2706                         // no, this mode needs oper, and this user 'aint got what it takes!
2707                         return false;
2708                 }
2709                 return true;
2710         }
2711
2712         // anything else - return false.
2713         log(DEBUG,"umode %c not known by any ruleset",umode);
2714         return false;
2715 }
2716
2717 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2718 {
2719         userrec* s2;
2720         bool faked = false;
2721         if (!source)
2722         {
2723                 s2 = new userrec;
2724                 strncpy(s2->nick,ServerName,NICKMAX);
2725                 strcpy(s2->modes,"o");
2726                 s2->fd = -1;
2727                 source = s2;
2728                 faked = true;
2729         }
2730         string_list p;
2731         p.clear();
2732         if (ModeDefined(umode,MT_CLIENT))
2733         {
2734                 for (int i = 0; i <= MODCOUNT; i++)
2735                 {
2736                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2737                         {
2738                                 log(DEBUG,"Module claims umode %c",umode);
2739                                 return true;
2740                         }
2741                 }
2742                 log(DEBUG,"No module claims umode %c",umode);
2743                 if (faked)
2744                 {
2745                         delete s2;
2746                         source = NULL;
2747                 }
2748                 return false;
2749         }
2750         else
2751         {
2752                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2753                 if (faked)
2754                 {
2755                         delete s2;
2756                         source = NULL;
2757                 }
2758                 return false;
2759         }
2760 }
2761
2762 void handle_mode(char **parameters, int pcnt, userrec *user)
2763 {
2764         chanrec* Ptr;
2765         userrec* dest;
2766         int can_change,i;
2767         int direction = 1;
2768         char outpars[MAXBUF];
2769
2770         dest = Find(parameters[0]);
2771
2772         if (!user)
2773         {
2774                 return;
2775         }
2776
2777         if ((dest) && (pcnt == 1))
2778         {
2779                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2780                 return;
2781         }
2782
2783         if ((dest) && (pcnt > 1))
2784         {
2785                 char dmodes[MAXBUF];
2786                 strncpy(dmodes,dest->modes,MAXBUF);
2787                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2788
2789                 can_change = 0;
2790                 if (user != dest)
2791                 {
2792                         if (strchr(user->modes,'o'))
2793                         {
2794                                 can_change = 1;
2795                         }
2796                 }
2797                 else
2798                 {
2799                         can_change = 1;
2800                 }
2801                 if (!can_change)
2802                 {
2803                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2804                         return;
2805                 }
2806
2807                 strcpy(outpars,"+");
2808                 direction = 1;
2809
2810                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2811                         return;
2812
2813                 for (int i = 0; i < strlen(parameters[1]); i++)
2814                 {
2815                         if (parameters[1][i] == '+')
2816                         {
2817                                 if (direction != 1)
2818                                 {
2819                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2820                                         {
2821                                                 outpars[strlen(outpars)-1] = '+';
2822                                         }
2823                                         else
2824                                         {
2825                                                 strcat(outpars,"+");
2826                                         }
2827                                 }
2828                                 direction = 1;
2829                         }
2830                         else
2831                         if (parameters[1][i] == '-')
2832                         {
2833                                 if (direction != 0)
2834                                 {
2835                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2836                                         {
2837                                                 outpars[strlen(outpars)-1] = '-';
2838                                         }
2839                                         else
2840                                         {
2841                                                 strcat(outpars,"-");
2842                                         }
2843                                 }
2844                                 direction = 0;
2845                         }
2846                         else
2847                         {
2848                                 can_change = 0;
2849                                 if (strchr(user->modes,'o'))
2850                                 {
2851                                         can_change = 1;
2852                                 }
2853                                 else
2854                                 {
2855                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2856                                         {
2857                                                 can_change = 1;
2858                                         }
2859                                 }
2860                                 if (can_change)
2861                                 {
2862                                         if (direction == 1)
2863                                         {
2864                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2865                                                 {
2866                                                         char umode = parameters[1][i];
2867                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2868                                                         {
2869                                                                 dmodes[strlen(dmodes)+1]='\0';
2870                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2871                                                                 outpars[strlen(outpars)+1]='\0';
2872                                                                 outpars[strlen(outpars)] = parameters[1][i];
2873                                                         }
2874                                                 }
2875                                         }
2876                                         else
2877                                         {
2878                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2879                                                 {
2880                                                         char umode = parameters[1][i];
2881                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2882                                                         {
2883                                                                 int q = 0;
2884                                                                 char temp[MAXBUF];
2885                                                                 char moo[MAXBUF];
2886
2887                                                                 outpars[strlen(outpars)+1]='\0';
2888                                                                 outpars[strlen(outpars)] = parameters[1][i];
2889
2890                                                                 strcpy(temp,"");
2891                                                                 for (q = 0; q < strlen(dmodes); q++)
2892                                                                 {
2893                                                                         if (dmodes[q] != parameters[1][i])
2894                                                                         {
2895                                                                                 moo[0] = dmodes[q];
2896                                                                                 moo[1] = '\0';
2897                                                                                 strcat(temp,moo);
2898                                                                         }
2899                                                                 }
2900                                                                 strcpy(dmodes,temp);
2901                                                         }
2902                                                 }
2903                                         }
2904                                 }
2905                         }
2906                 }
2907                 if (strlen(outpars))
2908                 {
2909                         char b[MAXBUF];
2910                         strcpy(b,"");
2911                         int z = 0;
2912                         int i = 0;
2913                         while (i < strlen (outpars))
2914                         {
2915                                 b[z++] = outpars[i++];
2916                                 b[z] = '\0';
2917                                 if (i<strlen(outpars)-1)
2918                                 {
2919                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2920                                         {
2921                                                 // someones playing silly buggers and trying
2922                                                 // to put a +- or -+ into the line...
2923                                                 i++;
2924                                         }
2925                                 }
2926                                 if (i == strlen(outpars)-1)
2927                                 {
2928                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2929                                         {
2930                                                 i++;
2931                                         }
2932                                 }
2933                         }
2934
2935                         z = strlen(b)-1;
2936                         if ((b[z] == '-') || (b[z] == '+'))
2937                                 b[z] == '\0';
2938
2939                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2940                                 return;
2941
2942                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2943
2944                         // M token for a usermode must go to all servers
2945                         char buffer[MAXBUF];
2946                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2947                         for (int j = 0; j < 255; j++)
2948                         {
2949                                 if (servers[j] != NULL)
2950                                 {
2951                                         if (strcmp(servers[j]->name,ServerName))
2952                                         {
2953                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2954                                                 log(DEBUG,"Sent m token");
2955                                         }
2956                                 }
2957                         }
2958
2959                         if (strlen(dmodes)>MAXMODES)
2960                         {
2961                                 dmodes[MAXMODES-1] = '\0';
2962                         }
2963                         log(DEBUG,"Stripped mode line");
2964                         log(DEBUG,"Line dest is now %s",dmodes);
2965                         strncpy(dest->modes,dmodes,MAXMODES);
2966
2967                 }
2968
2969                 return;
2970         }
2971
2972         Ptr = FindChan(parameters[0]);
2973         if (Ptr)
2974         {
2975                 if (pcnt == 1)
2976                 {
2977                         /* just /modes #channel */
2978                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2979                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2980                         return;
2981                 }
2982                 else
2983                 if (pcnt == 2)
2984                 {
2985                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2986                         {
2987
2988                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2989                                 {
2990                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2991                                 }
2992                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2993                         }
2994                 }
2995
2996                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2997                 {
2998                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
2999                         return;
3000                 }
3001
3002                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
3003         }
3004         else
3005         {
3006                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3007         }
3008 }
3009
3010
3011
3012
3013 void server_mode(char **parameters, int pcnt, userrec *user)
3014 {
3015         chanrec* Ptr;
3016         userrec* dest;
3017         int can_change,i;
3018         int direction = 1;
3019         char outpars[MAXBUF];
3020
3021         dest = Find(parameters[0]);
3022
3023         // fix: ChroNiCk found this - we cant use this as debug if its null!
3024         if (dest)
3025         {
3026                 log(DEBUG,"server_mode on %s",dest->nick);
3027         }
3028
3029         if ((dest) && (pcnt > 1))
3030         {
3031                 log(DEBUG,"params > 1");
3032
3033                 char dmodes[MAXBUF];
3034                 strncpy(dmodes,dest->modes,MAXBUF);
3035
3036                 strcpy(outpars,"+");
3037                 direction = 1;
3038
3039                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3040                         return;
3041
3042                 for (int i = 0; i < strlen(parameters[1]); i++)
3043                 {
3044                         if (parameters[1][i] == '+')
3045                         {
3046                                 if (direction != 1)
3047                                 {
3048                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3049                                         {
3050                                                 outpars[strlen(outpars)-1] = '+';
3051                                         }
3052                                         else
3053                                         {
3054                                                 strcat(outpars,"+");
3055                                         }
3056                                 }
3057                                 direction = 1;
3058                         }
3059                         else
3060                         if (parameters[1][i] == '-')
3061                         {
3062                                 if (direction != 0)
3063                                 {
3064                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3065                                         {
3066                                                 outpars[strlen(outpars)-1] = '-';
3067                                         }
3068                                         else
3069                                         {
3070                                                 strcat(outpars,"-");
3071                                         }
3072                                 }
3073                                 direction = 0;
3074                         }
3075                         else
3076                         {
3077                                 log(DEBUG,"begin mode processing entry");
3078                                 can_change = 1;
3079                                 if (can_change)
3080                                 {
3081                                         if (direction == 1)
3082                                         {
3083                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3084                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3085                                                 {
3086                                                         char umode = parameters[1][i];
3087                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3088                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3089                                                         {
3090                                                                 dmodes[strlen(dmodes)+1]='\0';
3091                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3092                                                                 outpars[strlen(outpars)+1]='\0';
3093                                                                 outpars[strlen(outpars)] = parameters[1][i];
3094                                                         }
3095                                                 }
3096                                         }
3097                                         else
3098                                         {
3099                                                 // can only remove a mode they already have
3100                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3101                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3102                                                 {
3103                                                         char umode = parameters[1][i];
3104                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3105                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3106                                                         {
3107                                                                 int q = 0;
3108                                                                 char temp[MAXBUF];
3109                                                                 char moo[MAXBUF];
3110
3111                                                                 outpars[strlen(outpars)+1]='\0';
3112                                                                 outpars[strlen(outpars)] = parameters[1][i];
3113
3114                                                                 strcpy(temp,"");
3115                                                                 for (q = 0; q < strlen(dmodes); q++)
3116                                                                 {
3117                                                                         if (dmodes[q] != parameters[1][i])
3118                                                                         {
3119                                                                                 moo[0] = dmodes[q];
3120                                                                                 moo[1] = '\0';
3121                                                                                 strcat(temp,moo);
3122                                                                         }
3123                                                                 }
3124                                                                 strcpy(dmodes,temp);
3125                                                         }
3126                                                 }
3127                                         }
3128                                 }
3129                         }
3130                 }
3131                 if (strlen(outpars))
3132                 {
3133                         char b[MAXBUF];
3134                         strcpy(b,"");
3135                         int z = 0;
3136                         int i = 0;
3137                         while (i < strlen (outpars))
3138                         {
3139                                 b[z++] = outpars[i++];
3140                                 b[z] = '\0';
3141                                 if (i<strlen(outpars)-1)
3142                                 {
3143                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3144                                         {
3145                                                 // someones playing silly buggers and trying
3146                                                 // to put a +- or -+ into the line...
3147                                                 i++;
3148                                         }
3149                                 }
3150                                 if (i == strlen(outpars)-1)
3151                                 {
3152                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3153                                         {
3154                                                 i++;
3155                                         }
3156                                 }
3157                         }
3158
3159                         z = strlen(b)-1;
3160                         if ((b[z] == '-') || (b[z] == '+'))
3161                                 b[z] == '\0';
3162
3163                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3164                                 return;
3165
3166                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3167
3168                         // M token for a usermode must go to all servers
3169                         char buffer[MAXBUF];
3170                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3171                         for (int j = 0; j < 255; j++)
3172                         {
3173                                 if (servers[j] != NULL)
3174                                 {
3175                                         if (strcmp(servers[j]->name,ServerName))
3176                                         {
3177                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3178                                                 log(DEBUG,"Sent m token");
3179                                         }
3180                                 }
3181                         }
3182
3183                         if (strlen(dmodes)>MAXMODES)
3184                         {
3185                                 dmodes[MAXMODES-1] = '\0';
3186                         }
3187                         log(DEBUG,"Stripped mode line");
3188                         log(DEBUG,"Line dest is now %s",dmodes);
3189                         strncpy(dest->modes,dmodes,MAXMODES);
3190
3191                 }
3192
3193                 return;
3194         }
3195
3196         Ptr = FindChan(parameters[0]);
3197         if (Ptr)
3198         {
3199                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3200         }
3201         else
3202         {
3203                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3204         }
3205 }
3206
3207
3208
3209 void merge_mode(char **parameters, int pcnt)
3210 {
3211         chanrec* Ptr;
3212         userrec* dest;
3213         int can_change,i;
3214         int direction = 1;
3215         char outpars[MAXBUF];
3216
3217         dest = Find(parameters[0]);
3218
3219         // fix: ChroNiCk found this - we cant use this as debug if its null!
3220         if (dest)
3221         {
3222                 log(DEBUG,"merge_mode on %s",dest->nick);
3223         }
3224
3225         if ((dest) && (pcnt > 1))
3226         {
3227                 log(DEBUG,"params > 1");
3228
3229                 char dmodes[MAXBUF];
3230                 strncpy(dmodes,dest->modes,MAXBUF);
3231
3232                 strcpy(outpars,"+");
3233                 direction = 1;
3234
3235                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3236                         return;
3237
3238                 for (int i = 0; i < strlen(parameters[1]); i++)
3239                 {
3240                         if (parameters[1][i] == '+')
3241                         {
3242                                 if (direction != 1)
3243                                 {
3244                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3245                                         {
3246                                                 outpars[strlen(outpars)-1] = '+';
3247                                         }
3248                                         else
3249                                         {
3250                                                 strcat(outpars,"+");
3251                                         }
3252                                 }
3253                                 direction = 1;
3254                         }
3255                         else
3256                         if (parameters[1][i] == '-')
3257                         {
3258                                 if (direction != 0)
3259                                 {
3260                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3261                                         {
3262                                                 outpars[strlen(outpars)-1] = '-';
3263                                         }
3264                                         else
3265                                         {
3266                                                 strcat(outpars,"-");
3267                                         }
3268                                 }
3269                                 direction = 0;
3270                         }
3271                         else
3272                         {
3273                                 log(DEBUG,"begin mode processing entry");
3274                                 can_change = 1;
3275                                 if (can_change)
3276                                 {
3277                                         if (direction == 1)
3278                                         {
3279                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3280                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3281                                                 {
3282                                                         char umode = parameters[1][i];
3283                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3284                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3285                                                         {
3286                                                                 dmodes[strlen(dmodes)+1]='\0';
3287                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3288                                                                 outpars[strlen(outpars)+1]='\0';
3289                                                                 outpars[strlen(outpars)] = parameters[1][i];
3290                                                         }
3291                                                 }
3292                                         }
3293                                         else
3294                                         {
3295                                                 // can only remove a mode they already have
3296                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3297                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3298                                                 {
3299                                                         char umode = parameters[1][i];
3300                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3301                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3302                                                         {
3303                                                                 int q = 0;
3304                                                                 char temp[MAXBUF];
3305                                                                 char moo[MAXBUF];
3306
3307                                                                 outpars[strlen(outpars)+1]='\0';
3308                                                                 outpars[strlen(outpars)] = parameters[1][i];
3309
3310                                                                 strcpy(temp,"");
3311                                                                 for (q = 0; q < strlen(dmodes); q++)
3312                                                                 {
3313                                                                         if (dmodes[q] != parameters[1][i])
3314                                                                         {
3315                                                                                 moo[0] = dmodes[q];
3316                                                                                 moo[1] = '\0';
3317                                                                                 strcat(temp,moo);
3318                                                                         }
3319                                                                 }
3320                                                                 strcpy(dmodes,temp);
3321                                                         }
3322                                                 }
3323                                         }
3324                                 }
3325                         }
3326                 }
3327                 if (strlen(outpars))
3328                 {
3329                         char b[MAXBUF];
3330                         strcpy(b,"");
3331                         int z = 0;
3332                         int i = 0;
3333                         while (i < strlen (outpars))
3334                         {
3335                                 b[z++] = outpars[i++];
3336                                 b[z] = '\0';
3337                                 if (i<strlen(outpars)-1)
3338                                 {
3339                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3340                                         {
3341                                                 // someones playing silly buggers and trying
3342                                                 // to put a +- or -+ into the line...
3343                                                 i++;
3344                                         }
3345                                 }
3346                                 if (i == strlen(outpars)-1)
3347                                 {
3348                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3349                                         {
3350                                                 i++;
3351                                         }
3352                                 }
3353                         }
3354
3355                         z = strlen(b)-1;
3356                         if ((b[z] == '-') || (b[z] == '+'))
3357                                 b[z] == '\0';
3358
3359                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3360                                 return;
3361
3362                         if (strlen(dmodes)>MAXMODES)
3363                         {
3364                                 dmodes[MAXMODES-1] = '\0';
3365                         }
3366                         log(DEBUG,"Stripped mode line");
3367                         log(DEBUG,"Line dest is now %s",dmodes);
3368                         strncpy(dest->modes,dmodes,MAXMODES);
3369
3370                 }
3371
3372                 return;
3373         }
3374
3375         Ptr = FindChan(parameters[0]);
3376         if (Ptr)
3377         {
3378                 userrec s2;
3379                 strncpy(s2.nick,ServerName,NICKMAX);
3380                 strcpy(s2.modes,"o");
3381                 s2.fd = -1;
3382                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3383         }
3384 }
3385
3386
3387 void merge_mode2(char **parameters, int pcnt, userrec* user)
3388 {
3389         chanrec* Ptr;
3390         userrec* dest;
3391         int can_change,i;
3392         int direction = 1;
3393         char outpars[MAXBUF];
3394
3395         dest = Find(parameters[0]);
3396
3397         // fix: ChroNiCk found this - we cant use this as debug if its null!
3398         if (dest)
3399         {
3400                 log(DEBUG,"merge_mode on %s",dest->nick);
3401         }
3402
3403         if ((dest) && (pcnt > 1))
3404         {
3405                 log(DEBUG,"params > 1");
3406
3407                 char dmodes[MAXBUF];
3408                 strncpy(dmodes,dest->modes,MAXBUF);
3409
3410                 strcpy(outpars,"+");
3411                 direction = 1;
3412
3413                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3414                         return;
3415
3416                 for (int i = 0; i < strlen(parameters[1]); i++)
3417                 {
3418                         if (parameters[1][i] == '+')
3419                         {
3420                                 if (direction != 1)
3421                                 {
3422                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3423                                         {
3424                                                 outpars[strlen(outpars)-1] = '+';
3425                                         }
3426                                         else
3427                                         {
3428                                                 strcat(outpars,"+");
3429                                         }
3430                                 }
3431                                 direction = 1;
3432                         }
3433                         else
3434                         if (parameters[1][i] == '-')
3435                         {
3436                                 if (direction != 0)
3437                                 {
3438                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3439                                         {
3440                                                 outpars[strlen(outpars)-1] = '-';
3441                                         }
3442                                         else
3443                                         {
3444                                                 strcat(outpars,"-");
3445                                         }
3446                                 }
3447                                 direction = 0;
3448                         }
3449                         else
3450                         {
3451                                 log(DEBUG,"begin mode processing entry");
3452                                 can_change = 1;
3453                                 if (can_change)
3454                                 {
3455                                         if (direction == 1)
3456                                         {
3457                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3458                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3459                                                 {
3460                                                         char umode = parameters[1][i];
3461                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3462                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3463                                                         {
3464                                                                 dmodes[strlen(dmodes)+1]='\0';
3465                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3466                                                                 outpars[strlen(outpars)+1]='\0';
3467                                                                 outpars[strlen(outpars)] = parameters[1][i];
3468                                                         }
3469                                                 }
3470                                         }
3471                                         else
3472                                         {
3473                                                 // can only remove a mode they already have
3474                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3475                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3476                                                 {
3477                                                         char umode = parameters[1][i];
3478                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3479                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3480                                                         {
3481                                                                 int q = 0;
3482                                                                 char temp[MAXBUF];
3483                                                                 char moo[MAXBUF];
3484
3485                                                                 outpars[strlen(outpars)+1]='\0';
3486                                                                 outpars[strlen(outpars)] = parameters[1][i];
3487
3488                                                                 strcpy(temp,"");
3489                                                                 for (q = 0; q < strlen(dmodes); q++)
3490                                                                 {
3491                                                                         if (dmodes[q] != parameters[1][i])
3492                                                                         {
3493                                                                                 moo[0] = dmodes[q];
3494                                                                                 moo[1] = '\0';
3495                                                                                 strcat(temp,moo);
3496                                                                         }
3497                                                                 }
3498                                                                 strcpy(dmodes,temp);
3499                                                         }
3500                                                 }
3501                                         }
3502                                 }
3503                         }
3504                 }
3505                 if (strlen(outpars))
3506                 {
3507                         char b[MAXBUF];
3508                         strcpy(b,"");
3509                         int z = 0;
3510                         int i = 0;
3511                         while (i < strlen (outpars))
3512                         {
3513                                 b[z++] = outpars[i++];
3514                                 b[z] = '\0';
3515                                 if (i<strlen(outpars)-1)
3516                                 {
3517                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3518                                         {
3519                                                 // someones playing silly buggers and trying
3520                                                 // to put a +- or -+ into the line...
3521                                                 i++;
3522                                         }
3523                                 }
3524                                 if (i == strlen(outpars)-1)
3525                                 {
3526                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3527                                         {
3528                                                 i++;
3529                                         }
3530                                 }
3531                         }
3532
3533                         z = strlen(b)-1;
3534                         if ((b[z] == '-') || (b[z] == '+'))
3535                                 b[z] == '\0';
3536
3537                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3538                                 return;
3539
3540                         WriteTo(user,dest,"MODE :%s",b);
3541
3542                         if (strlen(dmodes)>MAXMODES)
3543                         {
3544                                 dmodes[MAXMODES-1] = '\0';
3545                         }
3546                         log(DEBUG,"Stripped mode line");
3547                         log(DEBUG,"Line dest is now %s",dmodes);
3548                         strncpy(dest->modes,dmodes,MAXMODES);
3549
3550                 }
3551
3552                 return;
3553         }
3554
3555         Ptr = FindChan(parameters[0]);
3556         if (Ptr)
3557         {
3558                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3559                 {
3560                         return;
3561                 }
3562
3563                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3564         }
3565 }
3566
3567
3568
3569 /* This function pokes and hacks at a parameter list like the following:
3570  *
3571  * PART #winbot, #darkgalaxy :m00!
3572  *
3573  * to turn it into a series of individual calls like this:
3574  *
3575  * PART #winbot :m00!
3576  * PART #darkgalaxy :m00!
3577  *
3578  * The seperate calls are sent to a callback function provided by the caller
3579  * (the caller will usually call itself recursively). The callback function
3580  * must be a command handler. Calling this function on a line with no list causes
3581  * no action to be taken. You must provide a starting and ending parameter number
3582  * where the range of the list can be found, useful if you have a terminating
3583  * parameter as above which is actually not part of the list, or parameters
3584  * before the actual list as well. This code is used by many functions which
3585  * can function as "one to list" (see the RFC) */
3586
3587 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3588 {
3589         char plist[MAXBUF];
3590         char *param;
3591         char *pars[32];
3592         char blog[32][MAXBUF];
3593         char blog2[32][MAXBUF];
3594         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3595         char keystr[MAXBUF];
3596         char moo[MAXBUF];
3597
3598         for (int i = 0; i <32; i++)
3599                 strcpy(blog[i],"");
3600
3601         for (int i = 0; i <32; i++)
3602                 strcpy(blog2[i],"");
3603
3604         strcpy(moo,"");
3605         for (int i = 0; i <10; i++)
3606         {
3607                 if (!parameters[i])
3608                 {
3609                         parameters[i] = moo;
3610                 }
3611         }
3612         if (joins)
3613         {
3614                 if (pcnt > 1) /* we have a key to copy */
3615                 {
3616                         strcpy(keystr,parameters[1]);
3617                 }
3618         }
3619
3620         if (!parameters[start])
3621         {
3622                 return 0;
3623         }
3624         if (!strchr(parameters[start],','))
3625         {
3626                 return 0;
3627         }
3628         strcpy(plist,"");
3629         for (int i = start; i <= end; i++)
3630         {
3631                 if (parameters[i])
3632                 {
3633                         strcat(plist,parameters[i]);
3634                 }
3635         }
3636
3637         j = 0;
3638         param = plist;
3639
3640         t = strlen(plist);
3641         for (int i = 0; i < t; i++)
3642         {
3643                 if (plist[i] == ',')
3644                 {
3645                         plist[i] = '\0';
3646                         strcpy(blog[j++],param);
3647                         param = plist+i+1;
3648                         if (j>20)
3649                         {
3650                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3651                                 return 1;
3652                         }
3653                 }
3654         }
3655         strcpy(blog[j++],param);
3656         total = j;
3657
3658         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3659         {
3660                 strcat(keystr,",");
3661         }
3662
3663         if ((joins) && (keystr))
3664         {
3665                 if (strchr(keystr,','))
3666                 {
3667                         j = 0;
3668                         param = keystr;
3669                         t2 = strlen(keystr);
3670                         for (int i = 0; i < t2; i++)
3671                         {
3672                                 if (keystr[i] == ',')
3673                                 {
3674                                         keystr[i] = '\0';
3675                                         strcpy(blog2[j++],param);
3676                                         param = keystr+i+1;
3677                                 }
3678                         }
3679                         strcpy(blog2[j++],param);
3680                         total2 = j;
3681                 }
3682         }
3683
3684         for (j = 0; j < total; j++)
3685         {
3686                 if (blog[j])
3687                 {
3688                         pars[0] = blog[j];
3689                 }
3690                 for (q = end; q < pcnt-1; q++)
3691                 {
3692                         if (parameters[q+1])
3693                         {
3694                                 pars[q-end+1] = parameters[q+1];
3695                         }
3696                 }
3697                 if ((joins) && (parameters[1]))
3698                 {
3699                         if (pcnt > 1)
3700                         {
3701                                 pars[1] = blog2[j];
3702                         }
3703                         else
3704                         {
3705                                 pars[1] = NULL;
3706                         }
3707                 }
3708                 /* repeatedly call the function with the hacked parameter list */
3709                 if ((joins) && (pcnt > 1))
3710                 {
3711                         if (pars[1])
3712                         {
3713                                 // pars[1] already set up and containing key from blog2[j]
3714                                 fn(pars,2,u);
3715                         }
3716                         else
3717                         {
3718                                 pars[1] = parameters[1];
3719                                 fn(pars,2,u);
3720                         }
3721                 }
3722                 else
3723                 {
3724                         fn(pars,pcnt-(end-start),u);
3725                 }
3726         }
3727
3728         return 1;
3729 }
3730
3731
3732 void handle_join(char **parameters, int pcnt, userrec *user)
3733 {
3734         chanrec* Ptr;
3735         int i = 0;
3736
3737         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3738                 return;
3739         if (parameters[0][0] == '#')
3740         {
3741                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3742         }
3743 }
3744
3745
3746 void handle_part(char **parameters, int pcnt, userrec *user)
3747 {
3748         chanrec* Ptr;
3749
3750         if (pcnt > 1)
3751         {
3752                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3753                         return;
3754                 del_channel(user,parameters[0],parameters[1],false);
3755         }
3756         else
3757         {
3758                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3759                         return;
3760                 del_channel(user,parameters[0],NULL,false);
3761         }
3762 }
3763
3764 void handle_kick(char **parameters, int pcnt, userrec *user)
3765 {
3766         chanrec* Ptr = FindChan(parameters[0]);
3767         userrec* u   = Find(parameters[1]);
3768
3769         if ((!u) || (!Ptr))
3770         {
3771                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3772                 return;
3773         }
3774
3775         if (!has_channel(u,Ptr))
3776         {
3777                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3778                 return;
3779         }
3780
3781         if (pcnt > 2)
3782         {
3783                 char reason[MAXBUF];
3784                 strncpy(reason,parameters[2],MAXBUF);
3785                 if (strlen(reason)>MAXKICK)
3786                 {
3787                         reason[MAXKICK-1] = '\0';
3788                 }
3789
3790                 kick_channel(user,u,Ptr,reason);
3791         }
3792         else
3793         {
3794                 kick_channel(user,u,Ptr,user->nick);
3795         }
3796 }
3797
3798
3799 void handle_die(char **parameters, int pcnt, userrec *user)
3800 {
3801         log(DEBUG,"die: %s",user->nick);
3802         if (!strcmp(parameters[0],diepass))
3803         {
3804                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3805                 sleep(DieDelay);
3806                 Exit(ERROR);
3807         }
3808         else
3809         {
3810                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3811         }
3812 }
3813
3814 void handle_restart(char **parameters, int pcnt, userrec *user)
3815 {
3816         log(DEBUG,"restart: %s",user->nick);
3817         if (!strcmp(parameters[0],restartpass))
3818         {
3819                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3820                 sleep(DieDelay);
3821                 Exit(ERROR);
3822                 /* Will finish this later when i can be arsed :) */
3823         }
3824         else
3825         {
3826                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3827         }
3828 }
3829
3830
3831 void kill_link(userrec *user,const char* r)
3832 {
3833         user_hash::iterator iter = clientlist.find(user->nick);
3834
3835         char reason[MAXBUF];
3836
3837         strncpy(reason,r,MAXBUF);
3838
3839         if (strlen(reason)>MAXQUIT)
3840         {
3841                 reason[MAXQUIT-1] = '\0';
3842         }
3843
3844         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3845         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3846         log(DEBUG,"closing fd %d",user->fd);
3847
3848         /* bugfix, cant close() a nonblocking socket (sux!) */
3849         if (user->registered == 7) {
3850                 FOREACH_MOD OnUserQuit(user);
3851                 WriteCommonExcept(user,"QUIT :%s",reason);
3852
3853                 // Q token must go to ALL servers!!!
3854                 char buffer[MAXBUF];
3855                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3856                 for (int j = 0; j < 255; j++)
3857                 {
3858                         if (servers[j] != NULL)
3859                         {
3860                                 if (strcmp(servers[j]->name,ServerName))
3861                                 {
3862                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3863                                         log(DEBUG,"Sent Q token");
3864                                 }
3865                         }
3866                 }
3867         }
3868
3869         /* push the socket on a stack of sockets due to be closed at the next opportunity
3870          * 'Client exited' is an exception to this as it means the client side has already
3871          * closed the socket, we don't need to do it.
3872          */
3873         fd_reap.push_back(user->fd);
3874
3875         bool do_purge = false;
3876
3877         if (user->registered == 7) {
3878                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3879                 AddWhoWas(user);
3880         }
3881
3882         if (iter != clientlist.end())
3883         {
3884                 log(DEBUG,"deleting user hash value %d",iter->second);
3885                 if ((iter->second) && (user->registered == 7)) {
3886                         delete iter->second;
3887                 }
3888                 clientlist.erase(iter);
3889         }
3890
3891         if (user->registered == 7) {
3892                 purge_empty_chans();
3893         }
3894 }
3895
3896
3897 void handle_kill(char **parameters, int pcnt, userrec *user)
3898 {
3899         userrec *u = Find(parameters[0]);
3900         char killreason[MAXBUF];
3901
3902         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3903         if (u)
3904         {
3905                 WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3906                 // :Brain!brain@NetAdmin.chatspike.net KILL [Brain] :homer!NetAdmin.chatspike.net!Brain (test kill)
3907                 WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3908                 sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3909                 kill_link(u,killreason);
3910         }
3911         else
3912         {
3913                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3914         }
3915 }
3916
3917 void handle_summon(char **parameters, int pcnt, userrec *user)
3918 {
3919         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3920 }
3921
3922 void handle_users(char **parameters, int pcnt, userrec *user)
3923 {
3924         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3925 }
3926
3927
3928 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3929
3930 char* Passwd(userrec *user)
3931 {
3932         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3933         {
3934                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3935                 {
3936                         return i->pass;
3937                 }
3938         }
3939         return "";
3940 }
3941
3942 bool IsDenied(userrec *user)
3943 {
3944         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3945         {
3946                 if (match(user->host,i->host) && (i->type == CC_DENY))
3947                 {
3948                         return true;
3949                 }
3950         }
3951         return false;
3952 }
3953
3954
3955
3956 void handle_pass(char **parameters, int pcnt, userrec *user)
3957 {
3958         // Check to make sure they havnt registered -- Fix by FCS
3959         if (user->registered == 7)
3960         {
3961                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
3962                 return;
3963         }
3964         if (!strcasecmp(parameters[0],Passwd(user)))
3965         {
3966                 user->haspassed = true;
3967         }
3968 }
3969
3970 void handle_invite(char **parameters, int pcnt, userrec *user)
3971 {
3972         userrec* u = Find(parameters[0]);
3973         chanrec* c = FindChan(parameters[1]);
3974
3975         if ((!c) || (!u))
3976         {
3977                 if (!c)
3978                 {
3979                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3980                 }
3981                 else
3982                 {
3983                         if (c->inviteonly)
3984                         {
3985                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
3986                         }
3987                 }
3988
3989                 return;
3990         }
3991
3992         if (c->inviteonly)
3993         {
3994                 if (cstatus(user,c) < STATUS_HOP)
3995                 {
3996                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
3997                         return;
3998                 }
3999         }
4000         if (has_channel(u,c))
4001         {
4002                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4003                 return;
4004         }
4005         if (!has_channel(user,c))
4006         {
4007                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4008                 return;
4009         }
4010         u->InviteTo(c->name);
4011         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4012         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4013 }
4014
4015 void handle_topic(char **parameters, int pcnt, userrec *user)
4016 {
4017         chanrec* Ptr;
4018
4019         if (pcnt == 1)
4020         {
4021                 if (strlen(parameters[0]) <= CHANMAX)
4022                 {
4023                         Ptr = FindChan(parameters[0]);
4024                         if (Ptr)
4025                         {
4026                                 if (Ptr->topicset)
4027                                 {
4028                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4029                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4030                                 }
4031                                 else
4032                                 {
4033                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4034                                 }
4035                         }
4036                         else
4037                         {
4038                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4039                         }
4040                 }
4041                 return;
4042         }
4043         else if (pcnt>1)
4044         {
4045                 if (strlen(parameters[0]) <= CHANMAX)
4046                 {
4047                         Ptr = FindChan(parameters[0]);
4048                         if (Ptr)
4049                         {
4050                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4051                                 {
4052                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4053                                         return;
4054                                 }
4055
4056                                 char topic[MAXBUF];
4057                                 strncpy(topic,parameters[1],MAXBUF);
4058                                 if (strlen(topic)>MAXTOPIC)
4059                                 {
4060                                         topic[MAXTOPIC-1] = '\0';
4061                                 }
4062
4063                                 strcpy(Ptr->topic,topic);
4064                                 strcpy(Ptr->setby,user->nick);
4065                                 Ptr->topicset = time(NULL);
4066                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4067                         }
4068                         else
4069                         {
4070                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4071                         }
4072                 }
4073         }
4074 }
4075
4076 /* sends out an error notice to all connected clients (not to be used
4077  * lightly!) */
4078
4079 void send_error(char *s)
4080 {
4081         log(DEBUG,"send_error: %s",s);
4082         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4083         {
4084                 if (isnick(i->second->nick))
4085                 {
4086                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4087                 }
4088                 else
4089                 {
4090                         // fix - unregistered connections receive ERROR, not NOTICE
4091                         Write(i->second->fd,"ERROR :%s",s);
4092                 }
4093         }
4094 }
4095
4096 void Error(int status)
4097 {
4098         signal (SIGALRM, SIG_IGN);
4099         signal (SIGPIPE, SIG_IGN);
4100         signal (SIGTERM, SIG_IGN);
4101         signal (SIGABRT, SIG_IGN);
4102         signal (SIGSEGV, SIG_IGN);
4103         signal (SIGURG, SIG_IGN);
4104         signal (SIGKILL, SIG_IGN);
4105         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4106         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4107         exit(status);
4108 }
4109
4110
4111 int main (int argc, char *argv[])
4112 {
4113         Start();
4114         log(DEBUG,"*** InspIRCd starting up!");
4115         if (!FileExists(CONFIG_FILE))
4116         {
4117                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4118                 log(DEBUG,"main: no config");
4119                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4120                 Exit(ERROR);
4121         }
4122         if (argc > 1) {
4123                 if (!strcmp(argv[1],"-nofork")) {
4124                         nofork = true;
4125                 }
4126         }
4127         if (InspIRCd() == ERROR)
4128         {
4129                 log(DEBUG,"main: daemon function bailed");
4130                 printf("ERROR: could not initialise. Shutting down.\n");
4131                 Exit(ERROR);
4132         }
4133         Exit(TRUE);
4134         return 0;
4135 }
4136
4137 template<typename T> inline string ConvToStr(const T &in)
4138 {
4139         stringstream tmp;
4140         if (!(tmp << in)) return string();
4141         return tmp.str();
4142 }
4143
4144 /* re-allocates a nick in the user_hash after they change nicknames,
4145  * returns a pointer to the new user as it may have moved */
4146
4147 userrec* ReHashNick(char* Old, char* New)
4148 {
4149         user_hash::iterator newnick;
4150         user_hash::iterator oldnick = clientlist.find(Old);
4151
4152         log(DEBUG,"ReHashNick: %s %s",Old,New);
4153
4154         if (!strcasecmp(Old,New))
4155         {
4156                 log(DEBUG,"old nick is new nick, skipping");
4157                 return oldnick->second;
4158         }
4159
4160         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4161
4162         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4163
4164         clientlist[New] = new userrec();
4165         clientlist[New] = oldnick->second;
4166         /*delete oldnick->second; */
4167         clientlist.erase(oldnick);
4168
4169         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4170
4171         return clientlist[New];
4172 }
4173
4174 /* adds or updates an entry in the whowas list */
4175 void AddWhoWas(userrec* u)
4176 {
4177         user_hash::iterator iter = whowas.find(u->nick);
4178         userrec *a = new userrec();
4179         strcpy(a->nick,u->nick);
4180         strcpy(a->ident,u->ident);
4181         strcpy(a->dhost,u->dhost);
4182         strcpy(a->host,u->host);
4183         strcpy(a->fullname,u->fullname);
4184         strcpy(a->server,u->server);
4185         a->signon = u->signon;
4186
4187         /* MAX_WHOWAS:   max number of /WHOWAS items
4188          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4189          *               can be replaced by a newer one
4190          */
4191
4192         if (iter == whowas.end())
4193         {
4194                 if (whowas.size() == WHOWAS_MAX)
4195                 {
4196                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4197                         {
4198                                 // 3600 seconds in an hour ;)
4199                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4200                                 {
4201                                         delete i->second;
4202                                         i->second = a;
4203                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4204                                         return;
4205                                 }
4206                         }
4207                 }
4208                 else
4209                 {
4210                         log(DEBUG,"added fresh WHOWAS entry");
4211                         whowas[a->nick] = a;
4212                 }
4213         }
4214         else
4215         {
4216                 log(DEBUG,"updated WHOWAS entry");
4217                 delete iter->second;
4218                 iter->second = a;
4219         }
4220 }
4221
4222
4223 /* add a client connection to the sockets list */
4224 void AddClient(int socket, char* host, int port, bool iscached)
4225 {
4226         int i;
4227         int blocking = 1;
4228         char resolved[MAXBUF];
4229         string tempnick;
4230         char tn2[MAXBUF];
4231         user_hash::iterator iter;
4232
4233         tempnick = ConvToStr(socket) + "-unknown";
4234         sprintf(tn2,"%d-unknown",socket);
4235
4236         iter = clientlist.find(tempnick);
4237
4238         if (iter != clientlist.end()) return;
4239
4240         /*
4241          * It is OK to access the value here this way since we know
4242          * it exists, we just created it above.
4243          *
4244          * At NO other time should you access a value in a map or a
4245          * hash_map this way.
4246          */
4247         clientlist[tempnick] = new userrec();
4248
4249         NonBlocking(socket);
4250         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4251
4252         clientlist[tempnick]->fd = socket;
4253         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4254         strncpy(clientlist[tempnick]->host, host,160);
4255         strncpy(clientlist[tempnick]->dhost, host,160);
4256         strncpy(clientlist[tempnick]->server, ServerName,256);
4257         strncpy(clientlist[tempnick]->ident, "unknown",9);
4258         clientlist[tempnick]->registered = 0;
4259         clientlist[tempnick]->signon = time(NULL);
4260         clientlist[tempnick]->nping = time(NULL)+240;
4261         clientlist[tempnick]->lastping = 1;
4262         clientlist[tempnick]->port = port;
4263
4264         if (iscached)
4265         {
4266                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4267         }
4268         else
4269         {
4270                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4271         }
4272
4273         // set the registration timeout for this user
4274         unsigned long class_regtimeout = 90;
4275         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4276         {
4277                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4278                 {
4279                         class_regtimeout = (unsigned long)i->registration_timeout;
4280                         break;
4281                 }
4282         }
4283
4284         int class_flood = 0;
4285         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4286         {
4287                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4288                 {
4289                         class_flood = i->flood;
4290                         break;
4291                 }
4292         }
4293
4294         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4295         clientlist[tempnick]->flood = class_flood;
4296
4297         for (int i = 0; i < MAXCHANS; i++)
4298         {
4299                 clientlist[tempnick]->chans[i].channel = NULL;
4300                 clientlist[tempnick]->chans[i].uc_modes = 0;
4301         }
4302
4303         if (clientlist.size() == MAXCLIENTS)
4304                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4305 }
4306
4307 void handle_names(char **parameters, int pcnt, userrec *user)
4308 {
4309         chanrec* c;
4310
4311         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4312                 return;
4313         c = FindChan(parameters[0]);
4314         if (c)
4315         {
4316                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4317                 userlist(user,c);
4318                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4319         }
4320         else
4321         {
4322                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4323         }
4324 }
4325
4326 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4327 {
4328         userrec *dest;
4329         chanrec *chan;
4330
4331         user->idle_lastmsg = time(NULL);
4332
4333         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4334                 return;
4335         if (parameters[0][0] == '#')
4336         {
4337                 chan = FindChan(parameters[0]);
4338                 if (chan)
4339                 {
4340                         if ((chan->noexternal) && (!has_channel(user,chan)))
4341                         {
4342                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4343                                 return;
4344                         }
4345                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4346                         {
4347                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4348                                 return;
4349                         }
4350
4351                         int MOD_RESULT = 0;
4352
4353                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4354                         if (MOD_RESULT) {
4355                                 return;
4356                         }
4357
4358                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4359
4360                         // if any users of this channel are on remote servers, broadcast the packet
4361                         char buffer[MAXBUF];
4362                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4363                         for (int j = 0; j < 255; j++)
4364                         {
4365                                 if (servers[j] != NULL)
4366                                 {
4367                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4368                                         {
4369                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4370                                         }
4371                                 }
4372                         }
4373                 }
4374                 else
4375                 {
4376                         /* no such nick/channel */
4377                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4378                 }
4379                 return;
4380         }
4381
4382         dest = Find(parameters[0]);
4383         if (dest)
4384         {
4385                 if (strcmp(dest->awaymsg,""))
4386                 {
4387                         /* auto respond with aweh msg */
4388                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4389                 }
4390
4391                 int MOD_RESULT = 0;
4392
4393                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4394                 if (MOD_RESULT) {
4395                         return;
4396                 }
4397
4398
4399
4400                 if (!strcmp(dest->server,user->server))
4401                 {
4402                         // direct write, same server
4403                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4404                 }
4405                 else
4406                 {
4407                         for (int j = 0; j < 255; j++)
4408                         {
4409                                 if (servers[j] != NULL)
4410                                 {
4411                                         if (!strcasecmp(servers[j]->name,dest->server))
4412                                         {
4413                                                 // direct write, same server
4414                                                 char buffer[MAXBUF];
4415                                                 snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4416                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4417                                         }
4418                                 }
4419                         }
4420                 }
4421         }
4422         else
4423         {
4424                 /* no such nick/channel */
4425                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4426         }
4427 }
4428
4429 void handle_notice(char **parameters, int pcnt, userrec *user)
4430 {
4431         userrec *dest;
4432         chanrec *chan;
4433
4434         user->idle_lastmsg = time(NULL);
4435
4436         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4437                 return;
4438         if (parameters[0][0] == '#')
4439         {
4440                 chan = FindChan(parameters[0]);
4441                 if (chan)
4442                 {
4443                         if ((chan->noexternal) && (!has_channel(user,chan)))
4444                         {
4445                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4446                                 return;
4447                         }
4448                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4449                         {
4450                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4451                                 return;
4452                         }
4453
4454                         int MOD_RESULT = 0;
4455
4456                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4457                         if (MOD_RESULT) {
4458                                 return;
4459                         }
4460
4461                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4462
4463                         // if any users of this channel are on remote servers, broadcast the packet
4464                         char buffer[MAXBUF];
4465                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4466                         for (int j = 0; j < 255; j++)
4467                         {
4468                                 if (servers[j] != NULL)
4469                                 {
4470                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4471                                         {
4472                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4473                                         }
4474                                 }
4475                         }
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                 int MOD_RESULT = 0;
4489
4490                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4491                 if (MOD_RESULT) {
4492                         return;
4493                 }
4494
4495                 if (!strcmp(dest->server,user->server))
4496                 {
4497                         // direct write, same server
4498                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4499                 }
4500                 else
4501                 {
4502                         for (int j = 0; j < 255; j++)
4503                         {
4504                                 if (servers[j] != NULL)
4505                                 {
4506                                         if (!strcasecmp(servers[j]->name,dest->server))
4507                                         {
4508                                                 // direct write, same server
4509                                                 char buffer[MAXBUF];
4510                                                 snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4511                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4512                                         }
4513                                 }
4514                         }
4515                 }
4516         }
4517         else
4518         {
4519                 /* no such nick/channel */
4520                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4521         }
4522 }
4523
4524 char lst[MAXBUF];
4525
4526 char* chlist(userrec *user)
4527 {
4528         int i = 0;
4529         char cmp[MAXBUF];
4530
4531         log(DEBUG,"chlist: %s",user->nick);
4532         strcpy(lst,"");
4533         if (!user)
4534         {
4535                 return lst;
4536         }
4537         for (int i = 0; i != MAXCHANS; i++)
4538         {
4539                 if (user->chans[i].channel != NULL)
4540                 {
4541                         if (user->chans[i].channel->name)
4542                         {
4543                                 strcpy(cmp,user->chans[i].channel->name);
4544                                 strcat(cmp," ");
4545                                 if (!strstr(lst,cmp))
4546                                 {
4547                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4548                                         {
4549                                                 strcat(lst,cmode(user,user->chans[i].channel));
4550                                                 strcat(lst,user->chans[i].channel->name);
4551                                                 strcat(lst," ");
4552                                         }
4553                                 }
4554                         }
4555                 }
4556         }
4557         if (strlen(lst))
4558         {
4559                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4560         }
4561         return lst;
4562 }
4563
4564 void handle_info(char **parameters, int pcnt, userrec *user)
4565 {
4566         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4567         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4568         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4569         FOREACH_MOD OnInfo(user);
4570         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4571 }
4572
4573 void handle_time(char **parameters, int pcnt, userrec *user)
4574 {
4575         time_t rawtime;
4576         struct tm * timeinfo;
4577
4578         time ( &rawtime );
4579         timeinfo = localtime ( &rawtime );
4580         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4581
4582 }
4583
4584 void handle_whois(char **parameters, int pcnt, userrec *user)
4585 {
4586         userrec *dest;
4587         char *t;
4588
4589         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4590                 return;
4591         dest = Find(parameters[0]);
4592         if (dest)
4593         {
4594                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4595                 if (dest->registered == 7)
4596                 {
4597                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4598                         if ((user == dest) || (strchr(user->modes,'o')))
4599                         {
4600                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4601                         }
4602                         if (strcmp(chlist(dest),""))
4603                         {
4604                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4605                         }
4606                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4607                         if (strcmp(dest->awaymsg,""))
4608                         {
4609                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4610                         }
4611                         if (strchr(dest->modes,'o'))
4612                         {
4613                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4614                         }
4615                         FOREACH_MOD OnWhois(user,dest);
4616                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4617                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4618
4619                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4620                 }
4621                 else
4622                 {
4623                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4624                 }
4625         }
4626         else
4627         {
4628                 /* no such nick/channel */
4629                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4630         }
4631 }
4632
4633 void handle_quit(char **parameters, int pcnt, userrec *user)
4634 {
4635         user_hash::iterator iter = clientlist.find(user->nick);
4636         char* reason;
4637
4638         if (user->registered == 7)
4639         {
4640                 /* theres more to do here, but for now just close the socket */
4641                 if (pcnt == 1)
4642                 {
4643                         if (parameters[0][0] == ':')
4644                         {
4645                                 *parameters[0]++;
4646                         }
4647                         reason = parameters[0];
4648
4649                         if (strlen(reason)>MAXQUIT)
4650                         {
4651                                 reason[MAXQUIT-1] = '\0';
4652                         }
4653
4654                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4655                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4656                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4657
4658                         char buffer[MAXBUF];
4659                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4660                         for (int j = 0; j < 255; j++)
4661                         {
4662                                 if (servers[j] != NULL)
4663                                 {
4664                                         if (CommonOnThisServer(user,servers[j]->name))
4665                                         {
4666                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4667                                                 log(DEBUG,"Sent Q token");
4668                                         }
4669                                         }
4670                         }
4671                 }
4672                 else
4673                 {
4674                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4675                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4676                         WriteCommonExcept(user,"QUIT :Client exited");
4677
4678                         char buffer[MAXBUF];
4679                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4680                         for (int j = 0; j < 255; j++)
4681                         {
4682                                 if (servers[j] != NULL)
4683                                 {
4684                                         if (CommonOnThisServer(user,servers[j]->name))
4685                                         {
4686                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4687                                                 log(DEBUG,"Sent Q token");
4688                                         }
4689                                         }
4690                         }
4691                 }
4692                 FOREACH_MOD OnUserQuit(user);
4693                 AddWhoWas(user);
4694         }
4695
4696         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4697         fd_reap.push_back(user->fd);
4698
4699         if (iter != clientlist.end())
4700         {
4701                 clientlist.erase(iter);
4702                 log(DEBUG,"deleting user hash value %d",iter->second);
4703                 //if ((user) && (user->registered == 7)) {
4704                         //delete user;
4705                 //}
4706         }
4707
4708         if (user->registered == 7) {
4709                 purge_empty_chans();
4710         }
4711 }
4712
4713 void handle_who(char **parameters, int pcnt, userrec *user)
4714 {
4715         chanrec* Ptr = NULL;
4716
4717         /* theres more to do here, but for now just close the socket */
4718         if (pcnt == 1)
4719         {
4720                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4721                 {
4722                         if (user->chans[0].channel)
4723                         {
4724                                 Ptr = user->chans[0].channel;
4725                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4726                                 {
4727                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4728                                         {
4729                                                 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);
4730                                         }
4731                                 }
4732                         }
4733                         if (Ptr)
4734                         {
4735                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4736                         }
4737                         else
4738                         {
4739                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4740                         }
4741                         return;
4742                 }
4743                 if (parameters[0][0] == '#')
4744                 {
4745                         Ptr = FindChan(parameters[0]);
4746                         if (Ptr)
4747                         {
4748                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4749                                 {
4750                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4751                                         {
4752                                                 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);
4753                                         }
4754                                 }
4755                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4756                         }
4757                         else
4758                         {
4759                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4760                         }
4761                 }
4762                 else
4763                 {
4764                         userrec* u = Find(parameters[0]);
4765                         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);
4766                 }
4767         }
4768         if (pcnt == 2)
4769         {
4770                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4771                 {
4772                         Ptr = user->chans[0].channel;
4773                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4774                         {
4775                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4776                                 {
4777                                         if (strchr(i->second->modes,'o'))
4778                                         {
4779                                                 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);
4780                                         }
4781                                 }
4782                         }
4783                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4784                         return;
4785                 }
4786         }
4787 }
4788
4789 void handle_wallops(char **parameters, int pcnt, userrec *user)
4790 {
4791         WriteWallOps(user,"%s",parameters[0]);
4792 }
4793
4794 void handle_list(char **parameters, int pcnt, userrec *user)
4795 {
4796         chanrec* Ptr;
4797
4798         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4799         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4800         {
4801                 if ((!i->second->c_private) && (!i->second->secret))
4802                 {
4803                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4804                 }
4805         }
4806         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4807 }
4808
4809
4810 void handle_rehash(char **parameters, int pcnt, userrec *user)
4811 {
4812         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4813         ReadConfig();
4814         FOREACH_MOD OnRehash();
4815         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4816 }
4817
4818
4819 int usercnt(void)
4820 {
4821         return clientlist.size();
4822 }
4823
4824
4825 int usercount_invisible(void)
4826 {
4827         int c = 0;
4828
4829         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4830         {
4831                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4832         }
4833         return c;
4834 }
4835
4836 int usercount_opers(void)
4837 {
4838         int c = 0;
4839
4840         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4841         {
4842                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4843         }
4844         return c;
4845 }
4846
4847 int usercount_unknown(void)
4848 {
4849         int c = 0;
4850
4851         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4852         {
4853                 if ((i->second->fd) && (i->second->registered != 7))
4854                         c++;
4855         }
4856         return c;
4857 }
4858
4859 int chancount(void)
4860 {
4861         return chanlist.size();
4862 }
4863
4864 int servercount(void)
4865 {
4866         return 1;
4867 }
4868
4869 void handle_lusers(char **parameters, int pcnt, userrec *user)
4870 {
4871         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4872         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4873         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4874         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4875         WriteServ(user->fd,"254 %s :I have %d clients and 0 servers",user->nick,usercnt());
4876 }
4877
4878 void handle_admin(char **parameters, int pcnt, userrec *user)
4879 {
4880         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4881         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4882         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4883         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4884 }
4885
4886 void ShowMOTD(userrec *user)
4887 {
4888         if (!MOTD.size())
4889         {
4890                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4891                 return;
4892         }
4893         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4894         for (int i = 0; i != MOTD.size(); i++)
4895         {
4896                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4897         }
4898         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4899 }
4900
4901 void ShowRULES(userrec *user)
4902 {
4903         if (!RULES.size())
4904         {
4905                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4906                 return;
4907         }
4908         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4909         for (int i = 0; i != RULES.size(); i++)
4910         {
4911                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4912         }
4913         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4914 }
4915
4916 /* shows the message of the day, and any other on-logon stuff */
4917 void ConnectUser(userrec *user)
4918 {
4919         user->registered = 7;
4920         user->idle_lastmsg = time(NULL);
4921         log(DEBUG,"ConnectUser: %s",user->nick);
4922
4923         if (strcmp(Passwd(user),"") && (!user->haspassed))
4924         {
4925                 kill_link(user,"Invalid password");
4926                 return;
4927         }
4928         if (IsDenied(user))
4929         {
4930                 kill_link(user,"Unauthorised connection");
4931                 return;
4932         }
4933
4934         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
4935         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
4936         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
4937         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
4938         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
4939         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);
4940         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);
4941         ShowMOTD(user);
4942         FOREACH_MOD OnUserConnect(user);
4943         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
4944
4945         char buffer[MAXBUF];
4946         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);
4947         for (int j = 0; j < 255; j++)
4948         {
4949                 if (servers[j] != NULL)
4950                 {
4951                         if (strcmp(servers[j]->name,ServerName))
4952                         {
4953                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4954                                 log(DEBUG,"Sent N token");
4955                         }
4956                 }
4957         }
4958
4959 }
4960
4961 void handle_version(char **parameters, int pcnt, userrec *user)
4962 {
4963         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
4964 }
4965
4966 void handle_ping(char **parameters, int pcnt, userrec *user)
4967 {
4968         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
4969 }
4970
4971 void handle_pong(char **parameters, int pcnt, userrec *user)
4972 {
4973         // set the user as alive so they survive to next ping
4974         user->lastping = 1;
4975 }
4976
4977 void handle_motd(char **parameters, int pcnt, userrec *user)
4978 {
4979         ShowMOTD(user);
4980 }
4981
4982 void handle_rules(char **parameters, int pcnt, userrec *user)
4983 {
4984         ShowRULES(user);
4985 }
4986
4987 void handle_user(char **parameters, int pcnt, userrec *user)
4988 {
4989         if (user->registered < 3)
4990         {
4991                 if (isident(parameters[0]) == 0) {
4992                         // This kinda Sucks, According to the RFC thou, its either this,
4993                         // or "You have already registered" :p -- Craig
4994                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
4995                 }
4996                 else {
4997                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
4998                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
4999                         strncat(user->ident,parameters[0],IDENTMAX);
5000                         strncpy(user->fullname,parameters[3],128);
5001                         user->registered = (user->registered | 1);
5002                 }
5003         }
5004         else
5005         {
5006                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5007                 return;
5008         }
5009         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5010         if (user->registered == 3)
5011         {
5012                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5013                 ConnectUser(user);
5014         }
5015 }
5016
5017 void handle_userhost(char **parameters, int pcnt, userrec *user)
5018 {
5019         char Return[MAXBUF],junk[MAXBUF];
5020         sprintf(Return,"302 %s :",user->nick);
5021         for (int i = 0; i < pcnt; i++)
5022         {
5023                 userrec *u = Find(parameters[i]);
5024                 if (u)
5025                 {
5026                         if (strchr(u->modes,'o'))
5027                         {
5028                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5029                                 strcat(Return,junk);
5030                         }
5031                         else
5032                         {
5033                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5034                                 strcat(Return,junk);
5035                         }
5036                 }
5037         }
5038         WriteServ(user->fd,Return);
5039 }
5040
5041
5042 void handle_ison(char **parameters, int pcnt, userrec *user)
5043 {
5044         char Return[MAXBUF];
5045         sprintf(Return,"303 %s :",user->nick);
5046         for (int i = 0; i < pcnt; i++)
5047         {
5048                 userrec *u = Find(parameters[i]);
5049                 if (u)
5050                 {
5051                         strcat(Return,u->nick);
5052                         strcat(Return," ");
5053                 }
5054         }
5055         WriteServ(user->fd,Return);
5056 }
5057
5058
5059 void handle_away(char **parameters, int pcnt, userrec *user)
5060 {
5061         if (pcnt)
5062         {
5063                 strcpy(user->awaymsg,parameters[0]);
5064                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5065         }
5066         else
5067         {
5068                 strcpy(user->awaymsg,"");
5069                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5070         }
5071 }
5072
5073 void handle_whowas(char **parameters, int pcnt, userrec* user)
5074 {
5075         user_hash::iterator i = whowas.find(parameters[0]);
5076
5077         if (i == whowas.end())
5078         {
5079                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5080                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5081         }
5082         else
5083         {
5084                 time_t rawtime = i->second->signon;
5085                 tm *timeinfo;
5086                 char b[MAXBUF];
5087
5088                 timeinfo = localtime(&rawtime);
5089                 strcpy(b,asctime(timeinfo));
5090                 b[strlen(b)-1] = '\0';
5091
5092                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5093                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5094                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5095         }
5096
5097 }
5098
5099 void handle_trace(char **parameters, int pcnt, userrec *user)
5100 {
5101         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5102         {
5103                 if (i->second)
5104                 {
5105                         if (isnick(i->second->nick))
5106                         {
5107                                 if (strchr(i->second->modes,'o'))
5108                                 {
5109                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5110                                 }
5111                                 else
5112                                 {
5113                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5114                                 }
5115                         }
5116                         else
5117                         {
5118                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5119                         }
5120                 }
5121         }
5122 }
5123
5124 void handle_modules(char **parameters, int pcnt, userrec *user)
5125 {
5126         for (int i = 0; i < module_names.size(); i++)
5127         {
5128                         Version V = modules[i]->GetVersion();
5129                         char modulename[MAXBUF];
5130                         strncpy(modulename,module_names[i].c_str(),256);
5131                         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));
5132         }
5133 }
5134
5135 void handle_stats(char **parameters, int pcnt, userrec *user)
5136 {
5137         if (pcnt != 1)
5138         {
5139                 return;
5140         }
5141         if (strlen(parameters[0])>1)
5142         {
5143                 /* make the stats query 1 character long */
5144                 parameters[0][1] = '\0';
5145         }
5146
5147         /* stats m (list number of times each command has been used, plus bytecount) */
5148         if (!strcasecmp(parameters[0],"m"))
5149         {
5150                 for (int i = 0; i < cmdlist.size(); i++)
5151                 {
5152                         if (cmdlist[i].handler_function)
5153                         {
5154                                 if (cmdlist[i].use_count)
5155                                 {
5156                                         /* RPL_STATSCOMMANDS */
5157                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5158                                 }
5159                         }
5160                 }
5161
5162         }
5163
5164         /* stats z (debug and memory info) */
5165         if (!strcasecmp(parameters[0],"z"))
5166         {
5167                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5168                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5169                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5170                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5171                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5172                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5173                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5174                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5175         }
5176
5177         /* stats o */
5178         if (!strcasecmp(parameters[0],"o"))
5179         {
5180                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5181                 {
5182                         char LoginName[MAXBUF];
5183                         char HostName[MAXBUF];
5184                         char OperType[MAXBUF];
5185                         ConfValue("oper","name",i,LoginName,&config_f);
5186                         ConfValue("oper","host",i,HostName,&config_f);
5187                         ConfValue("oper","type",i,OperType,&config_f);
5188                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5189                 }
5190         }
5191
5192         /* stats l (show user I/O stats) */
5193         if (!strcasecmp(parameters[0],"l"))
5194         {
5195                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5196                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5197                 {
5198                         if (isnick(i->second->nick))
5199                         {
5200                                 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);
5201                         }
5202                         else
5203                         {
5204                                 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);
5205                         }
5206
5207                 }
5208         }
5209
5210         /* stats u (show server uptime) */
5211         if (!strcasecmp(parameters[0],"u"))
5212         {
5213                 time_t current_time = 0;
5214                 current_time = time(NULL);
5215                 time_t server_uptime = current_time - startup_time;
5216                 struct tm* stime;
5217                 stime = gmtime(&server_uptime);
5218                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5219                  * Craig suggested this, and it seemed a good idea so in it went */
5220                 if (stime->tm_year > 70)
5221                 {
5222                         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);
5223                 }
5224                 else
5225                 {
5226                         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);
5227                 }
5228         }
5229
5230         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5231         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5232
5233 }
5234
5235 void handle_connect(char **parameters, int pcnt, userrec *user)
5236 {
5237         char Link_ServerName[1024];
5238         char Link_IPAddr[1024];
5239         char Link_Port[1024];
5240         char Link_Pass[1024];
5241         int LinkPort;
5242         bool found = false;
5243
5244         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5245         {
5246                 ConfValue("link","name",i,Link_ServerName,&config_f);
5247                 ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5248                 ConfValue("link","port",i,Link_Port,&config_f);
5249                 ConfValue("link","sendpass",i,Link_Pass,&config_f);
5250                 log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5251                 LinkPort = atoi(Link_Port);
5252                 if (match(Link_ServerName,parameters[0])) {
5253                         found = true;
5254                 }
5255         }
5256
5257         if (!found) {
5258                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5259                 return;
5260         }
5261
5262         // TODO: Perform a check here to stop a server being linked twice!
5263
5264         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5265
5266         if (me[defaultRoute])
5267         {
5268
5269                 // at this point parameters[0] is an ip in a string.
5270                 // TODO: Look this up from the <link> blocks instead!
5271                 for (int j = 0; j < 255; j++) {
5272                         if (servers[j] == NULL) {
5273                                 servers[j] = new serverrec;
5274                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
5275                                 servers[j]->internal_port = LinkPort;
5276                                 strcpy(servers[j]->name,Link_ServerName);
5277                                 log(DEBUG,"Allocated new serverrec");
5278                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
5279                                 {
5280                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
5281                                 }
5282                                 return;
5283                         }
5284                 }
5285                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
5286         }
5287         else
5288         {
5289                 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);
5290         }
5291 }
5292
5293 void handle_squit(char **parameters, int pcnt, userrec *user)
5294 {
5295         // send out an squit across the mesh and then clear the server list (for local squit)
5296 }
5297
5298 char islast(serverrec* s)
5299 {
5300         char c = '`';
5301         for (int j = 0; j < 255; j++)
5302         {
5303                 if (servers[j] != NULL)
5304                 {
5305                         c = '|';
5306                 }
5307                 if (servers[j] == s)
5308                 {
5309                         c = '`';
5310                 }
5311         }
5312         return c;
5313 }
5314
5315 void handle_links(char **parameters, int pcnt, userrec *user)
5316 {
5317         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5318         for (int j = 0; j < 255; j++)
5319         {
5320                 if (servers[j] != NULL)
5321                 {
5322                         WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,servers[j]->name,ServerName,servers[j]->description);
5323                 }
5324         }
5325         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5326 }
5327
5328 void handle_map(char **parameters, int pcnt, userrec *user)
5329 {
5330         WriteServ(user->fd,"006 %s :%s",user->nick,ServerName);
5331         for (int j = 0; j < 255; j++)
5332         {
5333                 if (servers[j] != NULL)
5334                 {
5335                         WriteServ(user->fd,"006 %s :%c-%s",user->nick,islast(servers[j]),servers[j]->name);
5336                 }
5337         }
5338         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5339 }
5340
5341
5342 void handle_oper(char **parameters, int pcnt, userrec *user)
5343 {
5344         char LoginName[MAXBUF];
5345         char Password[MAXBUF];
5346         char OperType[MAXBUF];
5347         char TypeName[MAXBUF];
5348         char Hostname[MAXBUF];
5349         int i,j;
5350
5351         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5352         {
5353                 ConfValue("oper","name",i,LoginName,&config_f);
5354                 ConfValue("oper","password",i,Password,&config_f);
5355                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5356                 {
5357                         /* correct oper credentials */
5358                         ConfValue("oper","type",i,OperType,&config_f);
5359                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5360                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5361                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5362                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5363                         {
5364                                 ConfValue("type","name",j,TypeName,&config_f);
5365                                 if (!strcmp(TypeName,OperType))
5366                                 {
5367                                         /* found this oper's opertype */
5368                                         ConfValue("type","host",j,Hostname,&config_f);
5369                                         strncpy(user->dhost,Hostname,256);
5370                                 }
5371                         }
5372                         if (!strchr(user->modes,'o'))
5373                         {
5374                                 strcat(user->modes,"o");
5375                         }
5376                         FOREACH_MOD OnOper(user);
5377                         return;
5378                 }
5379         }
5380         /* no such oper */
5381         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5382         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5383 }
5384
5385 void handle_nick(char **parameters, int pcnt, userrec *user)
5386 {
5387         if (pcnt < 1)
5388         {
5389                 log(DEBUG,"not enough params for handle_nick");
5390                 return;
5391         }
5392         if (!parameters[0])
5393         {
5394                 log(DEBUG,"invalid parameter passed to handle_nick");
5395                 return;
5396         }
5397         if (!strlen(parameters[0]))
5398         {
5399                 log(DEBUG,"zero length new nick passed to handle_nick");
5400                 return;
5401         }
5402         if (!user)
5403         {
5404                 log(DEBUG,"invalid user passed to handle_nick");
5405                 return;
5406         }
5407         if (!user->nick)
5408         {
5409                 log(DEBUG,"invalid old nick passed to handle_nick");
5410                 return;
5411         }
5412         if (!strcasecmp(user->nick,parameters[0]))
5413         {
5414                 log(DEBUG,"old nick is new nick, skipping");
5415                 return;
5416         }
5417         else
5418         {
5419                 if (strlen(parameters[0]) > 1)
5420                 {
5421                         if (parameters[0][0] == ':')
5422                         {
5423                                 *parameters[0]++;
5424                         }
5425                 }
5426                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5427                 {
5428                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5429                         return;
5430                 }
5431         }
5432         if (isnick(parameters[0]) == 0)
5433         {
5434                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5435                 return;
5436         }
5437
5438         if (user->registered == 7)
5439         {
5440                 WriteCommon(user,"NICK %s",parameters[0]);
5441
5442                 // Q token must go to ALL servers!!!
5443                 char buffer[MAXBUF];
5444                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5445                 for (int j = 0; j < 255; j++)
5446                 {
5447                         if (servers[j] != NULL)
5448                         {
5449                                 if (strcmp(servers[j]->name,ServerName))
5450                                 {
5451                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5452                                         log(DEBUG,"Sent n token");
5453                                 }
5454                         }
5455                 }
5456
5457         }
5458
5459         /* change the nick of the user in the users_hash */
5460         user = ReHashNick(user->nick, parameters[0]);
5461         /* actually change the nick within the record */
5462         if (!user) return;
5463         if (!user->nick) return;
5464
5465         strncpy(user->nick, parameters[0],NICKMAX);
5466
5467         log(DEBUG,"new nick set: %s",user->nick);
5468
5469         if (user->registered < 3)
5470                 user->registered = (user->registered | 2);
5471         if (user->registered == 3)
5472         {
5473                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5474                 ConnectUser(user);
5475         }
5476         log(DEBUG,"exit nickchange: %s",user->nick);
5477 }
5478
5479 void force_nickchange(userrec* user,const char* newnick)
5480 {
5481         char nick[MAXBUF];
5482         strcpy(nick,"");
5483
5484         if (user)
5485         {
5486                 if (newnick)
5487                 {
5488                         strncpy(nick,newnick,MAXBUF);
5489                 }
5490                 if (user->registered == 7)
5491                 {
5492                         char* pars[1];
5493                         pars[0] = nick;
5494                         handle_nick(pars,1,user);
5495                 }
5496         }
5497 }
5498
5499
5500 int process_parameters(char **command_p,char *parameters)
5501 {
5502         int i = 0;
5503         int j = 0;
5504         int q = 0;
5505         q = strlen(parameters);
5506         if (!q)
5507         {
5508                 /* no parameters, command_p invalid! */
5509                 return 0;
5510         }
5511         if (parameters[0] == ':')
5512         {
5513                 command_p[0] = parameters+1;
5514                 return 1;
5515         }
5516         if (q)
5517         {
5518                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5519                 {
5520                         /* only one parameter */
5521                         command_p[0] = parameters;
5522                         if (parameters[0] == ':')
5523                         {
5524                                 if (strchr(parameters,' ') != NULL)
5525                                 {
5526                                         command_p[0]++;
5527                                 }
5528                         }
5529                         return 1;
5530                 }
5531         }
5532         command_p[j++] = parameters;
5533         for (int i = 0; i <= q; i++)
5534         {
5535                 if (parameters[i] == ' ')
5536                 {
5537                         command_p[j++] = parameters+i+1;
5538                         parameters[i] = '\0';
5539                         if (command_p[j-1][0] == ':')
5540                         {
5541                                 *command_p[j-1]++; /* remove dodgy ":" */
5542                                 break;
5543                                 /* parameter like this marks end of the sequence */
5544                         }
5545                 }
5546         }
5547         return j; /* returns total number of items in the list */
5548 }
5549
5550 void process_command(userrec *user, char* cmd)
5551 {
5552         char *parameters;
5553         char *command;
5554         char *command_p[127];
5555         char p[MAXBUF], temp[MAXBUF];
5556         int i, j, items, cmd_found;
5557
5558         for (int i = 0; i < 127; i++)
5559                 command_p[i] = NULL;
5560
5561         if (!user)
5562         {
5563                 return;
5564         }
5565         if (!cmd)
5566         {
5567                 return;
5568         }
5569         if (!strcmp(cmd,""))
5570         {
5571                 return;
5572         }
5573
5574         int total_params = 0;
5575         if (strlen(cmd)>2)
5576         {
5577                 for (int q = 0; q < strlen(cmd)-1; q++)
5578                 {
5579                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5580                         {
5581                                 total_params++;
5582                                 // found a 'trailing', we dont count them after this.
5583                                 break;
5584                         }
5585                         if (cmd[q] == ' ')
5586                                 total_params++;
5587                 }
5588         }
5589
5590         // another phidjit bug...
5591         if (total_params > 126)
5592         {
5593                 kill_link(user,"Protocol violation (1)");
5594                 return;
5595         }
5596
5597         strcpy(temp,cmd);
5598
5599         string tmp = cmd;
5600         FOREACH_MOD OnServerRaw(tmp,true);
5601         const char* cmd2 = tmp.c_str();
5602         snprintf(cmd,512,"%s",cmd2);
5603
5604         if (!strchr(cmd,' '))
5605         {
5606                 /* no parameters, lets skip the formalities and not chop up
5607                  * the string */
5608                 log(DEBUG,"About to preprocess command with no params");
5609                 items = 0;
5610                 command_p[0] = NULL;
5611                 parameters = NULL;
5612                 for (int i = 0; i <= strlen(cmd); i++)
5613                 {
5614                         cmd[i] = toupper(cmd[i]);
5615                 }
5616                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5617                 command = cmd;
5618         }
5619         else
5620         {
5621                 strcpy(cmd,"");
5622                 j = 0;
5623                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5624                 for (int i = 0; i < strlen(temp); i++)
5625                 {
5626                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5627                         {
5628                                 cmd[j++] = temp[i];
5629                                 cmd[j] = 0;
5630                         }
5631                 }
5632                 /* split the full string into a command plus parameters */
5633                 parameters = p;
5634                 strcpy(p," ");
5635                 command = cmd;
5636                 if (strchr(cmd,' '))
5637                 {
5638                         for (int i = 0; i <= strlen(cmd); i++)
5639                         {
5640                                 /* capitalise the command ONLY, leave params intact */
5641                                 cmd[i] = toupper(cmd[i]);
5642                                 /* are we nearly there yet?! :P */
5643                                 if (cmd[i] == ' ')
5644                                 {
5645                                         command = cmd;
5646                                         parameters = cmd+i+1;
5647                                         cmd[i] = '\0';
5648                                         break;
5649                                 }
5650                         }
5651                 }
5652                 else
5653                 {
5654                         for (int i = 0; i <= strlen(cmd); i++)
5655                         {
5656                                 cmd[i] = toupper(cmd[i]);
5657                         }
5658                 }
5659
5660         }
5661         cmd_found = 0;
5662
5663         if (strlen(command)>MAXCOMMAND)
5664         {
5665                 kill_link(user,"Protocol violation (2)");
5666                 return;
5667         }
5668
5669         for (int x = 0; x < strlen(command); x++)
5670         {
5671                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5672                 {
5673                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5674                         {
5675                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5676                                 {
5677                                         kill_link(user,"Protocol violation (3)");
5678                                         return;
5679                                 }
5680                         }
5681                 }
5682         }
5683
5684         for (int i = 0; i != cmdlist.size(); i++)
5685         {
5686                 if (strcmp(cmdlist[i].command,""))
5687                 {
5688                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5689                         {
5690                                 log(DEBUG,"Found matching command");
5691
5692                                 if (parameters)
5693                                 {
5694                                         if (strcmp(parameters,""))
5695                                         {
5696                                                 items = process_parameters(command_p,parameters);
5697                                         }
5698                                         else
5699                                         {
5700                                                 items = 0;
5701                                                 command_p[0] = NULL;
5702                                         }
5703                                 }
5704                                 else
5705                                 {
5706                                         items = 0;
5707                                         command_p[0] = NULL;
5708                                 }
5709
5710                                 if (user)
5711                                 {
5712                                         log(DEBUG,"Processing command");
5713
5714                                         /* activity resets the ping pending timer */
5715                                         user->nping = time(NULL) + 120;
5716                                         if ((items) < cmdlist[i].min_params)
5717                                         {
5718                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5719                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5720                                                 return;
5721                                         }
5722                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5723                                         {
5724                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5725                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5726                                                 cmd_found = 1;
5727                                                 return;
5728                                         }
5729                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5730                                          * deny command! */
5731                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5732                                         {
5733                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5734                                                 {
5735                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5736                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5737                                                         return;
5738                                                 }
5739                                         }
5740                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5741                                         {
5742                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5743                                                 if (cmdlist[i].handler_function)
5744                                                 {
5745                                                         /* ikky /stats counters */
5746                                                         if (temp)
5747                                                         {
5748                                                                 if (user)
5749                                                                 {
5750                                                                         user->bytes_in += strlen(temp);
5751                                                                         user->cmds_in++;
5752                                                                 }
5753                                                                 cmdlist[i].use_count++;
5754                                                                 cmdlist[i].total_bytes+=strlen(temp);
5755                                                         }
5756
5757                                                         /* WARNING: nothing may come after the
5758                                                          * command handler call, as the handler
5759                                                          * may free the user structure! */
5760
5761                                                         cmdlist[i].handler_function(command_p,items,user);
5762                                                 }
5763                                                 return;
5764                                         }
5765                                         else
5766                                         {
5767                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5768                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5769                                                 return;
5770                                         }
5771                                 }
5772                                 cmd_found = 1;
5773                         }
5774                 }
5775         }
5776         if ((!cmd_found) && (user))
5777         {
5778                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5779                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5780         }
5781 }
5782
5783
5784 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5785 {
5786         command_t comm;
5787         /* create the command and push it onto the table */
5788         strcpy(comm.command,cmd);
5789         comm.handler_function = f;
5790         comm.flags_needed = flags;
5791         comm.min_params = minparams;
5792         comm.use_count = 0;
5793         comm.total_bytes = 0;
5794         cmdlist.push_back(comm);
5795         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5796 }
5797
5798 void SetupCommandTable(void)
5799 {
5800         createcommand("USER",handle_user,0,4);
5801         createcommand("NICK",handle_nick,0,1);
5802         createcommand("QUIT",handle_quit,0,0);
5803         createcommand("VERSION",handle_version,0,0);
5804         createcommand("PING",handle_ping,0,1);
5805         createcommand("PONG",handle_pong,0,1);
5806         createcommand("ADMIN",handle_admin,0,0);
5807         createcommand("PRIVMSG",handle_privmsg,0,2);
5808         createcommand("INFO",handle_info,0,0);
5809         createcommand("TIME",handle_time,0,0);
5810         createcommand("WHOIS",handle_whois,0,1);
5811         createcommand("WALLOPS",handle_wallops,'o',1);
5812         createcommand("NOTICE",handle_notice,0,2);
5813         createcommand("JOIN",handle_join,0,1);
5814         createcommand("NAMES",handle_names,0,1);
5815         createcommand("PART",handle_part,0,1);
5816         createcommand("KICK",handle_kick,0,2);
5817         createcommand("MODE",handle_mode,0,1);
5818         createcommand("TOPIC",handle_topic,0,1);
5819         createcommand("WHO",handle_who,0,1);
5820         createcommand("MOTD",handle_motd,0,0);
5821         createcommand("RULES",handle_rules,0,0);
5822         createcommand("OPER",handle_oper,0,2);
5823         createcommand("LIST",handle_list,0,0);
5824         createcommand("DIE",handle_die,'o',1);
5825         createcommand("RESTART",handle_restart,'o',1);
5826         createcommand("KILL",handle_kill,'o',2);
5827         createcommand("REHASH",handle_rehash,'o',0);
5828         createcommand("LUSERS",handle_lusers,0,0);
5829         createcommand("STATS",handle_stats,0,1);
5830         createcommand("USERHOST",handle_userhost,0,1);
5831         createcommand("AWAY",handle_away,0,0);
5832         createcommand("ISON",handle_ison,0,0);
5833         createcommand("SUMMON",handle_summon,0,0);
5834         createcommand("USERS",handle_users,0,0);
5835         createcommand("INVITE",handle_invite,0,2);
5836         createcommand("PASS",handle_pass,0,1);
5837         createcommand("TRACE",handle_trace,'o',0);
5838         createcommand("WHOWAS",handle_whowas,0,1);
5839         createcommand("CONNECT",handle_connect,'o',1);
5840         createcommand("SQUIT",handle_squit,'o',1);
5841         createcommand("MODULES",handle_modules,'o',0);
5842         createcommand("LINKS",handle_links,0,0);
5843         createcommand("MAP",handle_map,0,0);
5844 }
5845
5846 void process_buffer(const char* cmdbuf,userrec *user)
5847 {
5848         if (!user)
5849         {
5850                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5851                 return;
5852         }
5853         char cmd[MAXBUF];
5854         int i;
5855         if (!cmdbuf)
5856         {
5857                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5858                 return;
5859         }
5860         if (!strcmp(cmdbuf,""))
5861         {
5862                 return;
5863         }
5864         strncpy(cmd,cmdbuf,MAXBUF);
5865         if (!strcmp(cmd,""))
5866         {
5867                 return;
5868         }
5869         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5870         {
5871                 cmd[strlen(cmd)-1] = '\0';
5872         }
5873         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5874         {
5875                 cmd[strlen(cmd)-1] = '\0';
5876         }
5877         if (!strcmp(cmd,""))
5878         {
5879                 return;
5880         }
5881         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5882         tidystring(cmd);
5883         if ((user) && (cmd))
5884         {
5885                 process_command(user,cmd);
5886         }
5887 }
5888
5889 void DoSync(serverrec* serv, char* udp_host,int udp_port, long MyKey)
5890 {
5891         char data[MAXBUF];
5892         // send start of sync marker: Y <timestamp>
5893         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
5894         // except the ones its receiving it from.
5895         snprintf(data,MAXBUF,"Y %d",time(NULL));
5896         serv->SendPacket(data,udp_host,udp_port,MyKey);
5897         // send users and channels
5898         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
5899         {
5900                 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);
5901                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5902                 if (strcmp(chlist(u->second),""))
5903                 {
5904                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
5905                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5906                 }
5907         }
5908         // send channel modes, topics etc...
5909         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
5910         {
5911                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
5912                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5913                 if (strcmp(c->second->topic,""))
5914                 {
5915                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
5916                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5917                 }
5918                 // send current banlist
5919
5920                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
5921                 {
5922                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
5923                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5924                 }
5925         }
5926         // send end of sync marker: E <timestamp>
5927         snprintf(data,MAXBUF,"F %d",time(NULL));
5928         serv->SendPacket(data,udp_host,udp_port,MyKey);
5929         // ircd sends its serverlist after the end of sync here
5930 }
5931
5932
5933 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5934 {
5935         char* src = strtok(params," ");
5936         char* dest = strtok(NULL," :");
5937         char* text = strtok(NULL,"\r\n");
5938         text++;
5939
5940         userrec* user = Find(src);
5941         if (user)
5942         {
5943                 userrec* dst = Find(dest);
5944
5945                 if (dst)
5946                 {
5947                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
5948                 }
5949                 else
5950                 {
5951                         chanrec* d = FindChan(dest);
5952                         if (d)
5953                         {
5954                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
5955                         }
5956                 }
5957         }
5958
5959 }
5960
5961
5962 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5963 {
5964         char* src = strtok(params," ");
5965         char* dest = strtok(NULL," :");
5966         char* text = strtok(NULL,"\r\n");
5967         text++;
5968
5969         userrec* user = Find(src);
5970         if (user)
5971         {
5972                 userrec* dst = Find(dest);
5973
5974                 if (dst)
5975                 {
5976                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
5977                 }
5978                 else
5979                 {
5980                         chanrec* d = FindChan(dest);
5981                         if (d)
5982                         {
5983                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
5984                         }
5985                 }
5986         }
5987
5988 }
5989
5990
5991 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5992 {
5993         char* tm = strtok(params," ");
5994         char* setby = strtok(NULL," ");
5995         char* channel = strtok(NULL," :");
5996         char* topic = strtok(NULL,"\r\n");
5997         topic++;
5998         time_t TS = atoi(tm);
5999         chanrec* c = FindChan(channel);
6000         if (c)
6001         {
6002                 // in the case of topics and TS, the *NEWER*
6003                 if (TS <= c->topicset)
6004                 {
6005                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6006                         strncpy(c->topic,topic,MAXTOPIC);
6007                         strncpy(c->setby,setby,NICKMAX);
6008                 }
6009         }
6010 }
6011
6012 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6013 {
6014         char* pars[128];
6015         char original[MAXBUF],target[MAXBUF];
6016         strncpy(original,params,MAXBUF);
6017         int index = 0;
6018         char* parameter = strtok(params," ");
6019         strncpy(target,parameter,MAXBUF);
6020         while (parameter)
6021         {
6022                 pars[index++] = parameter;
6023                 parameter = strtok(NULL," ");
6024         }
6025         merge_mode(pars,index);
6026         if (FindChan(target))
6027         {
6028                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6029         }
6030         if (Find(target))
6031         {
6032                 WriteTo(NULL,Find(target),"MODE %s",original);
6033         }
6034 }
6035
6036 // m is modes set by users only (not servers) valid targets are channels or users.
6037
6038 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6039 {
6040         // m blah #chatspike +b *!test@*4
6041         char* pars[128];
6042         char original[MAXBUF];
6043         strncpy(original,params,MAXBUF);
6044
6045         if (!strchr(params,' '))
6046         {
6047                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6048                 return;
6049         }
6050
6051         int index = 0;
6052
6053         char* src = strtok(params," ");
6054         userrec* user = Find(src);
6055
6056         if (user)
6057         {
6058                 log(DEBUG,"Found user: %s",user->nick);
6059                 char* parameter = strtok(NULL," ");
6060                 while (parameter)
6061                 {
6062                         pars[index++] = parameter;
6063                         parameter = strtok(NULL," ");
6064                 }
6065
6066                 log(DEBUG,"Calling merge_mode2");
6067                 merge_mode2(pars,index,user);
6068         }
6069 }
6070
6071
6072 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6073 {
6074         char* nick = strtok(params," ");
6075         char* channel = strtok(NULL," :");
6076         char* reason = strtok(NULL,"\r\n");
6077         userrec* user = Find(nick);
6078         reason++;
6079         if (user)
6080         {
6081                 if (strcmp(reason,""))
6082                 {
6083                         del_channel(user,channel,reason,true);
6084                 }
6085                 else
6086                 {
6087                         del_channel(user,channel,NULL,true);
6088                 }
6089         }
6090 }
6091
6092 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6093 {
6094         char* nick = strtok(params," :");
6095         char* reason = strtok(NULL,"\r\n");
6096         reason++;
6097
6098         userrec* user = Find(nick);
6099
6100         if (user)
6101         {
6102                 if (strlen(reason)>MAXQUIT)
6103                 {
6104                         reason[MAXQUIT-1] = '\0';
6105                 }
6106
6107
6108                 WriteCommonExcept(user,"QUIT :%s",reason);
6109
6110                 user_hash::iterator iter = clientlist.find(user->nick);
6111
6112                 if (iter != clientlist.end())
6113                 {
6114                         log(DEBUG,"deleting user hash value %d",iter->second);
6115                         if ((iter->second) && (user->registered == 7)) {
6116                                 delete iter->second;
6117                         }
6118                         clientlist.erase(iter);
6119                 }
6120
6121                 purge_empty_chans();
6122         }
6123 }
6124
6125 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6126 {
6127         char* oldnick = strtok(params," ");
6128         char* newnick = strtok(NULL," ");
6129
6130         userrec* user = Find(oldnick);
6131
6132         if (user)
6133         {
6134                 WriteCommon(user,"NICK %s",newnick);
6135                 user = ReHashNick(user->nick, newnick);
6136                 if (!user) return;
6137                 if (!user->nick) return;
6138                 strncpy(user->nick, newnick,NICKMAX);
6139                 log(DEBUG,"new nick set: %s",user->nick);
6140         }
6141 }
6142
6143 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6144 {
6145         char* tm = strtok(params," ");
6146         char* nick = strtok(NULL," ");
6147         char* host = strtok(NULL," ");
6148         char* dhost = strtok(NULL," ");
6149         char* ident = strtok(NULL," ");
6150         char* modes = strtok(NULL," ");
6151         char* server = strtok(NULL," :");
6152         char* gecos = strtok(NULL,"\r\n");
6153         gecos++;
6154         modes++;
6155         time_t TS = atoi(tm);
6156         user_hash::iterator iter = clientlist.find(nick);
6157         if (iter != clientlist.end())
6158         {
6159                 // nick collision
6160                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6161                 if (TS >= iter->second->age)
6162                 {
6163                         char str[MAXBUF];
6164                         snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6165                         WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6166                         // client on remote server is older than the local user, kill the local user
6167                         kill_link(iter->second,str);
6168                 }
6169         }
6170         clientlist[nick] = new userrec();
6171         // remote users have an fd of -1. This is so that our Write abstraction
6172         // routines know to route any messages to this record away to whatever server
6173         // theyre on.
6174         clientlist[nick]->fd = -1;
6175         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6176         strncpy(clientlist[nick]->host, host,160);
6177         strncpy(clientlist[nick]->dhost, dhost,160);
6178         strncpy(clientlist[nick]->server, server,256);
6179         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for '~'
6180         strncpy(clientlist[nick]->fullname, gecos,128);
6181         clientlist[nick]->signon = TS;
6182         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6183         clientlist[nick]->lastping = 1;
6184         clientlist[nick]->port = 0; // so is this...
6185         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6186         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6187         for (int i = 0; i < MAXCHANS; i++)
6188         {
6189                 clientlist[nick]->chans[i].channel = NULL;
6190                 clientlist[nick]->chans[i].uc_modes = 0;
6191         }
6192 }
6193
6194 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6195 {
6196         long tdiff = time(NULL) - atoi(params);
6197         if (tdiff)
6198                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6199 }
6200
6201 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6202 {
6203         // IMPORTANT NOTE
6204         // The J token currently has no timestamp - this needs looking at
6205         // because it will allow splitriding.
6206         char* nick = strtok(params," ");
6207         char* channel = strtok(NULL," ");
6208         userrec* user = Find(nick);
6209         while (channel)
6210         {
6211                 if ((user != NULL) && (strcmp(channel,"")))
6212                 {
6213                         char privilage = '\0';
6214                         if (channel[0] != '#')
6215                         {
6216                                 privilage = channel[0];
6217                                 channel++;
6218                         }
6219                         add_channel(user,channel,"",true);
6220
6221                         // now work out the privilages they should have on each channel
6222                         // and send the appropriate servermodes.
6223                         for (int i = 0; i != MAXCHANS; i++)
6224                         {
6225                                 if (user->chans[i].channel)
6226                                 {
6227                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6228                                         {
6229                                                 if (privilage == '@')
6230                                                 {
6231                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6232                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6233                                                 }
6234                                                 if (privilage == '%')
6235                                                 {
6236                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6237                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6238                                                 }
6239                                                 if (privilage == '+')
6240                                                 {
6241                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6242                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6243                                                 }
6244                                         }
6245                                 }
6246                         }
6247
6248                 }
6249                 channel = strtok(NULL," ");
6250         }
6251 }
6252
6253 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6254 {
6255         switch(token)
6256         {
6257                 // Y <TS>
6258                 // start netburst
6259                 case 'Y':
6260                         nb_start = time(NULL);
6261                         WriteOpers("Server %s is starting netburst.",source->name);
6262                 break;
6263                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6264                 // introduce remote client
6265                 case 'N':
6266                         handle_N(token,params,source,reply,udp_host,udp_port);
6267                 break;
6268                 // n <NICK> <NEWNICK>
6269                 // change nickname of client -- a server should only be able to
6270                 // change the nicknames of clients that reside on it unless
6271                 // they are ulined.
6272                 case 'n':
6273                         handle_n(token,params,source,reply,udp_host,udp_port);
6274                 break;
6275                 // J <NICK> <CHANLIST>
6276                 // Join user to channel list, merge channel permissions
6277                 case 'J':
6278                         handle_J(token,params,source,reply,udp_host,udp_port);
6279                 break;
6280                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6281                 // change channel topic (netburst only)
6282                 case 'T':
6283                         handle_T(token,params,source,reply,udp_host,udp_port);
6284                 break;
6285                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6286                 // Server setting modes on an object
6287                 case 'M':
6288                         handle_M(token,params,source,reply,udp_host,udp_port);
6289                 break;
6290                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6291                 // User setting modes on an object
6292                 case 'm':
6293                         handle_m(token,params,source,reply,udp_host,udp_port);
6294                 break;
6295                 // P <SOURCE> <TARGET> :<TEXT>
6296                 // Send a private/channel message
6297                 case 'P':
6298                         handle_P(token,params,source,reply,udp_host,udp_port);
6299                 break;
6300                 // V <SOURCE> <TARGET> :<TEXT>
6301                 // Send a private/channel notice
6302                 case 'V':
6303                         handle_V(token,params,source,reply,udp_host,udp_port);
6304                 break;
6305                 // L <SOURCE> <CHANNEL> :<REASON>
6306                 // User parting a channel
6307                 case 'L':
6308                         handle_L(token,params,source,reply,udp_host,udp_port);
6309                 break;
6310                 // Q <SOURCE> :<REASON>
6311                 // user quitting
6312                 case 'Q':
6313                         handle_Q(token,params,source,reply,udp_host,udp_port);
6314                 break;
6315                 // F <TS>
6316                 // end netburst
6317                 case 'F':
6318                         WriteOpers("Server %s has completed netburst. (%d secs)",source->name,time(NULL)-nb_start);
6319                         handle_F(token,params,source,reply,udp_host,udp_port);
6320                 break;
6321                 // anything else
6322                 default:
6323                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6324                 break;
6325         }
6326 }
6327
6328
6329 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
6330 {
6331         char response[10240];
6332         char token = udp_msg[0];
6333         char* params = udp_msg + 2;
6334         char finalparam[1024];
6335         strcpy(finalparam," :xxxx");
6336         if (strstr(params," :")) {
6337                 strncpy(finalparam,strstr(params," :"),1024);
6338         }
6339         if (token == 'S') {
6340                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6341                 char* servername = strtok(params," ");
6342                 char* password = strtok(NULL," ");
6343                 char* serverdesc = finalparam+2;
6344                 WriteOpers("CONNECT from %s (%s)",servername,udp_host);
6345
6346
6347                 char Link_ServerName[1024];
6348                 char Link_IPAddr[1024];
6349                 char Link_Port[1024];
6350                 char Link_Pass[1024];
6351                 char Link_SendPass[1024];
6352                 int LinkPort = 0;
6353
6354                 // search for a corresponding <link> block in the config files
6355                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6356                 {
6357                         ConfValue("link","name",i,Link_ServerName,&config_f);
6358                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6359                         ConfValue("link","port",i,Link_Port,&config_f);
6360                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6361                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6362                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6363                         LinkPort = atoi(Link_Port);
6364                         if (!strcasecmp(Link_ServerName,servername)) {
6365                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6366                                         if (LinkPort == udp_port) {
6367                                                 // we have a matching link line -
6368                                                 // send a 'diminutive' server message back...
6369                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6370                                                 serv->SendPacket(response,udp_host,udp_port,0);
6371                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
6372                                                 for (int j = 0; j < 255; j++) {
6373                                                         if (servers[j] == NULL) {
6374                                                                 servers[j] = new serverrec;
6375                                                                 strcpy(servers[j]->internal_addr,udp_host);
6376                                                                 strcpy(servers[j]->name,servername);
6377                                                                 strcpy(servers[j]->description,serverdesc);
6378                                                                 servers[j]->internal_port = udp_port;
6379                                                                 // create a server record for this server
6380                                                                 snprintf(response,10240,"O %d",MyKey);
6381                                                                 serv->SendPacket(response,udp_host,udp_port,0);
6382                                                                 return;
6383                                                         }
6384                                                 }
6385                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
6386                                                 return;
6387                                         }
6388                                         else {
6389                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6390                                         }
6391                                 }
6392                                 else {
6393                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6394                                 }
6395                         }
6396                         else {
6397                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6398                         }
6399                 }
6400                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6401                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6402                 return;
6403         }
6404         else
6405         if (token == 'O') {
6406                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
6407                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
6408                 // array, which is only added by an 'S' packet or BeginLink().
6409                 for (int i = 0; i < 255; i++) {
6410                         if (servers[i] != NULL) {
6411                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
6412                                         servers[i]->key = atoi(params);
6413                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
6414                                         DoSync(serv,udp_host,udp_port,MyKey);
6415                                         return;
6416                                 }
6417                         }
6418                 }
6419                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
6420         }
6421         else
6422         if (token == 's') {
6423                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6424                 char* servername = strtok(params," ");
6425                 char* password = strtok(NULL," ");
6426                 char* serverdesc = finalparam+2;
6427
6428                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6429                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6430                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6431                 // a connect, so put out an oper alert!
6432
6433
6434
6435
6436                 // for now, just accept all, we'll fix that later.
6437                 WriteOpers("%s accepted our link credentials ",servername);
6438
6439                 char Link_ServerName[1024];
6440                 char Link_IPAddr[1024];
6441                 char Link_Port[1024];
6442                 char Link_Pass[1024];
6443                 char Link_SendPass[1024];
6444                 int LinkPort = 0;
6445
6446                 // search for a corresponding <link> block in the config files
6447                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6448                 {
6449                         ConfValue("link","name",i,Link_ServerName,&config_f);
6450                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6451                         ConfValue("link","port",i,Link_Port,&config_f);
6452                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6453                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6454                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6455                         LinkPort = atoi(Link_Port);
6456                         if (!strcasecmp(Link_ServerName,servername)) {
6457                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6458                                         if (LinkPort == udp_port) {
6459                                                 // matching link at this end too, we're all done!
6460                                                 // at this point we must begin key exchange and insert this
6461                                                 // server into our 'active' table.
6462                                                 for (int j = 0; j < 255; j++) {
6463                                                         if (servers[j] != NULL) {
6464                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6465                                                                         strcpy(servers[j]->description,serverdesc);
6466                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6467                                                                         snprintf(response,10240,"O %d",MyKey);
6468                                                                         serv->SendPacket(response,udp_host,udp_port,0);
6469                                                                         return;
6470                                                                 }
6471                                                         }
6472                                                 }
6473                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6474                                                 return;
6475
6476                                         }
6477                                         else {
6478                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6479                                         }
6480                                 }
6481                                 else {
6482                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6483                                 }
6484                         }
6485                         else {
6486                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6487                         }
6488                 }
6489                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6490                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6491                 return;
6492         }
6493         else
6494         if (token == 'E') {
6495                 char* error_message = finalparam+2;
6496                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6497                 // remove this server from any lists
6498                 for (int j = 0; j < 255; j++) {
6499                         if (servers[j] != NULL) {
6500                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6501                                         delete servers[j];
6502                                         return;
6503                                 }
6504                         }
6505                 }
6506                 return;
6507         }
6508         else {
6509
6510                 serverrec* source_server = NULL;
6511
6512                 for (int j = 0; j < 255; j++) {
6513                         if (servers[j] != NULL) {
6514                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6515                                         if (servers[j]->key == theirkey) {
6516                                                 // found a valid key for this server, can process restricted stuff here
6517                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
6518                                                 return;
6519                                         }
6520                                 }
6521                         }
6522                 }
6523
6524                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
6525         }
6526 }
6527
6528 int reap_counter = 0;
6529
6530 int InspIRCd(void)
6531 {
6532         struct sockaddr_in client, server;
6533         char addrs[MAXBUF][255];
6534         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6535         socklen_t length;
6536         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6537         int selectResult = 0, selectResult2 = 0;
6538         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6539         char resolvedHost[MAXBUF];
6540         fd_set selectFds;
6541         struct timeval tv;
6542
6543         log_file = fopen("ircd.log","a+");
6544         if (!log_file)
6545         {
6546                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6547                 Exit(ERROR);
6548         }
6549
6550         log(DEBUG,"InspIRCd: startup: begin");
6551         log(DEBUG,"$Id$");
6552         if (geteuid() == 0)
6553         {
6554                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6555                 Exit(ERROR);
6556                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6557         }
6558         SetupCommandTable();
6559         log(DEBUG,"InspIRCd: startup: default command table set up");
6560
6561         ReadConfig();
6562         if (strcmp(DieValue,""))
6563         {
6564                 printf("WARNING: %s\n\n",DieValue);
6565                 exit(0);
6566         }
6567         log(DEBUG,"InspIRCd: startup: read config");
6568
6569         int count2 = 0, count3 = 0;
6570
6571         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6572         {
6573                 ConfValue("bind","port",count,configToken,&config_f);
6574                 ConfValue("bind","address",count,Addr,&config_f);
6575                 ConfValue("bind","type",count,Type,&config_f);
6576                 if (!strcmp(Type,"servers"))
6577                 {
6578                         char Default[MAXBUF];
6579                         strcpy(Default,"no");
6580                         ConfValue("bind","default",count,Default,&config_f);
6581                         if (strchr(Default,'y'))
6582                         {
6583                                 defaultRoute = count3;
6584                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6585                         }
6586                         me[count3] = new serverrec(ServerName,100L,false);
6587                         me[count3]->CreateListener(Addr,atoi(configToken));
6588                         count3++;
6589                 }
6590                 else
6591                 {
6592                         ports[count2] = atoi(configToken);
6593                         strcpy(addrs[count2],Addr);
6594                         count2++;
6595                 }
6596                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6597         }
6598         portCount = count2;
6599         UDPportCount = count3;
6600
6601         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6602
6603         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6604
6605         printf("\n");
6606
6607         /* BugFix By Craig! :p */
6608         count = 0;
6609         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6610         {
6611                 char modfile[MAXBUF];
6612                 ConfValue("module","name",count2,configToken,&config_f);
6613                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6614                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6615                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6616                 /* If The File Doesnt exist, Trying to load it
6617                  * Will Segfault the IRCd.. So, check to see if
6618                  * it Exists, Before Proceeding. */
6619                 if (FileExists(modfile))
6620                 {
6621                         factory[count] = new ircd_module(modfile);
6622                         if (factory[count]->LastError())
6623                         {
6624                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6625                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6626                                 Exit(ERROR);
6627                         }
6628                         if (factory[count]->factory)
6629                         {
6630                                 modules[count] = factory[count]->factory->CreateModule();
6631                                 /* save the module and the module's classfactory, if
6632                                  * this isnt done, random crashes can occur :/ */
6633                                 module_names.push_back(modfile);
6634                         }
6635                         else
6636                         {
6637                                 log(DEBUG,"Unable to load %s",modfile);
6638                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6639                                 Exit(ERROR);
6640                         }
6641                         /* Increase the Count */
6642                         count++;
6643                 }
6644                 else
6645                 {
6646                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6647                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6648                 }
6649         }
6650         MODCOUNT = count - 1;
6651         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6652
6653         printf("\nInspIRCd is now running!\n");
6654
6655         startup_time = time(NULL);
6656
6657         if (nofork)
6658         {
6659                 log(VERBOSE,"Not forking as -nofork was specified");
6660         }
6661         else
6662         {
6663                 if (DaemonSeed() == ERROR)
6664                 {
6665                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6666                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6667                         Exit(ERROR);
6668                 }
6669         }
6670
6671
6672         /* setup select call */
6673         FD_ZERO(&selectFds);
6674         log(DEBUG,"InspIRCd: startup: zero selects");
6675         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
6676
6677         for (count = 0; count < portCount; count++)
6678         {
6679                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
6680                 {
6681                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
6682                         return(ERROR);
6683                 }
6684                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
6685                 {
6686                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
6687                 }
6688                 else    /* well we at least bound to one socket so we'll continue */
6689                 {
6690                         boundPortCount++;
6691                 }
6692         }
6693
6694         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
6695
6696         /* if we didn't bind to anything then abort */
6697         if (boundPortCount == 0)
6698         {
6699                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
6700                 return (ERROR);
6701         }
6702
6703         length = sizeof (client);
6704         int flip_flop = 0, udp_port = 0;
6705         char udp_msg[MAXBUF], udp_host[MAXBUF];
6706
6707         /* main loop, this never returns */
6708         for (;;)
6709         {
6710
6711                 fd_set sfd;
6712                 struct timeval tval;
6713                 FD_ZERO(&sfd);
6714
6715                 user_hash::iterator count2 = clientlist.begin();
6716
6717                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
6718                 // them in a list, then reap the list every second or so.
6719                 if (reap_counter>5000)
6720                 {
6721                         if (fd_reap.size() > 0)
6722                         {
6723                                 for( int n = 0; n < fd_reap.size(); n++)
6724                                 {
6725                                         Blocking(fd_reap[n]);
6726                                         close(fd_reap[n]);
6727                                         NonBlocking(fd_reap[n]);
6728                                 }
6729                         }
6730                         fd_reap.clear();
6731                         reap_counter=0;
6732                 }
6733
6734
6735                 for (int x = 0; x != UDPportCount; x++)
6736                 {
6737                         long theirkey = 0;
6738                         if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
6739                         {
6740                                 if (strlen(udp_msg)<1) {
6741                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
6742                         }
6743                         else
6744                         {
6745                                 FOREACH_MOD OnPacketReceive(udp_msg);
6746                                 // Packets must go back via the route they arrived on :)
6747                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
6748                                 // link packets can manipulate the usertable so beware of
6749                                 // any loops here watching the user or channels hash
6750                                 log(DEBUG,"Sync: exit 3");
6751                                 goto label;
6752                         }
6753                 }
6754         }
6755
6756
6757         while (count2 != clientlist.end())
6758         {
6759                 char data[10240];
6760                 tval.tv_usec = tval.tv_sec = 0;
6761                 FD_ZERO(&sfd);
6762                 int total_in_this_set = 0;
6763
6764                 user_hash::iterator xcount = count2;
6765                 user_hash::iterator endingiter = count2;
6766
6767                 if (!count2->second) break;
6768
6769                 if (count2->second)
6770                 if (count2->second->fd != 0)
6771                 {
6772                         // assemble up to 64 sockets into an fd_set
6773                         // to implement a pooling mechanism.
6774                         //
6775                         // This should be up to 64x faster than the
6776                         // old implementation.
6777                         while (total_in_this_set < 64)
6778                         {
6779                                 if (count2 != clientlist.end())
6780                                 {
6781                                         // we don't check the state of remote users.
6782                                         if (count2->second->fd > 0)
6783                                         {
6784                                                 FD_SET (count2->second->fd, &sfd);
6785
6786                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
6787                                                 // their connection class.
6788                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
6789                                                 {
6790                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
6791                                                         kill_link(count2->second,"Registration timeout");
6792                                                         goto label;
6793                                                 }
6794                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
6795                                                 {
6796                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
6797                                                         {
6798                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
6799                                                                 kill_link(count2->second,"Ping timeout");
6800                                                                 goto label;
6801                                                         }
6802                                                         Write(count2->second->fd,"PING :%s",ServerName);
6803                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
6804                                                         count2->second->lastping = 0;
6805                                                         count2->second->nping = time(NULL)+120;
6806                                                 }
6807                                         }
6808                                         count2++;
6809                                         total_in_this_set++;
6810                                 }
6811                                 else break;
6812                         }
6813
6814                         endingiter = count2;
6815                         count2 = xcount; // roll back to where we were
6816
6817                         int v = 0;
6818
6819                         tval.tv_usec = 0;
6820                         tval.tv_sec = 0;
6821                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
6822
6823                         // now loop through all of the items in this pool if any are waiting
6824                         //if (selectResult2 > 0)
6825                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
6826                         {
6827                                 result = EAGAIN;
6828                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
6829                                 {
6830                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
6831                                         memset(data, 0, 10240);
6832                                         result = read(count2a->second->fd, data, 10240);
6833
6834                                         if (result)
6835                                         {
6836                                                 log(DEBUG,"Read %d characters from socket",result);
6837                                                 userrec* current = count2a->second;
6838                                                 int currfd = current->fd;
6839                                                 char* l = strtok(data,"\n");
6840                                                 int floodlines = 0;
6841                                                 while (l)
6842                                                 {
6843                                                         floodlines++;
6844                                                         if ((floodlines > current->flood) && (current->flood != 0))
6845                                                         {
6846                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6847                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6848                                                                 kill_link(current,"Excess flood");
6849                                                                 goto label;
6850                                                         }
6851                                                         char sanitized[NetBufferSize];
6852                                                         memset(sanitized, 0, NetBufferSize);
6853                                                         int ptt = 0;
6854                                                         for (int pt = 0; pt < strlen(l); pt++)
6855                                                         {
6856                                                                 if (l[pt] != '\r')
6857                                                                 {
6858                                                                         sanitized[ptt++] = l[pt];
6859                                                                 }
6860                                                         }
6861                                                         sanitized[ptt] = '\0';
6862                                                         if (strlen(sanitized))
6863                                                         {
6864
6865
6866                                                                 // we're gonna re-scan to check if the nick is gone, after every
6867                                                                 // command - if it has, we're gonna bail
6868                                                                 bool find_again = false;
6869                                                                 process_buffer(sanitized,current);
6870
6871                                                                 // look for the user's record in case it's changed
6872                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
6873                                                                 {
6874                                                                         if (c2->second->fd == currfd)
6875                                                                         {
6876                                                                                 // found again, update pointer
6877                                                                                 current == c2->second;
6878                                                                                 find_again = true;
6879                                                                                 break;
6880                                                                         }
6881                                                                 }
6882                                                                 if (!find_again)
6883                                                                         goto label;
6884
6885                                                         }
6886                                                         l = strtok(NULL,"\n");
6887                                                 }
6888                                                 goto label;
6889                                         }
6890
6891                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
6892                                         {
6893                                                 log(DEBUG,"killing: %s",count2a->second->nick);
6894                                                 kill_link(count2a->second,strerror(errno));
6895                                                 goto label;
6896                                         }
6897                                 }
6898                                 // result EAGAIN means nothing read
6899                                 if (result == EAGAIN)
6900                                 {
6901                                 }
6902                                 else
6903                                 if (result == 0)
6904                                 {
6905                                         if (count2->second)
6906                                         {
6907                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
6908                                                 kill_link(count2a->second,"Client exited");
6909                                                 // must bail here? kill_link removes the hash, corrupting the iterator
6910                                                 log(DEBUG,"Bailing from client exit");
6911                                                 goto label;
6912                                         }
6913                                 }
6914                                 else if (result > 0)
6915                                 {
6916                                 }
6917                         }
6918                 }
6919                 for (int q = 0; q < total_in_this_set; q++)
6920                 {
6921                         // there is no iterator += operator :(
6922                         //if (count2 != clientlist.end())
6923                         //{
6924                                 count2++;
6925                         //}
6926                 }
6927         }
6928
6929         // set up select call
6930         for (count = 0; count < boundPortCount; count++)
6931         {
6932                 FD_SET (openSockfd[count], &selectFds);
6933         }
6934
6935         /* added timeout! select was waiting forever... wank... :/ */
6936         tv.tv_usec = 0;
6937
6938         flip_flop++;
6939         reap_counter++;
6940         if (flip_flop > 20)
6941         {
6942                 tv.tv_usec = 1;
6943                 flip_flop = 0;
6944         }
6945
6946         tv.tv_sec = 0;
6947         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
6948
6949         /* select is reporting a waiting socket. Poll them all to find out which */
6950         if (selectResult > 0)
6951         {
6952                 char target[MAXBUF], resolved[MAXBUF];
6953                 for (count = 0; count < boundPortCount; count++)
6954                 {
6955                         if (FD_ISSET (openSockfd[count], &selectFds))
6956                         {
6957                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
6958
6959                                 address_cache::iterator iter = IP.find(client.sin_addr);
6960                                 bool iscached = false;
6961                                 if (iter == IP.end())
6962                                 {
6963                                         /* ip isn't in cache, add it */
6964                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
6965                                         if(CleanAndResolve(resolved, target) != TRUE)
6966                                         {
6967                                                 strncpy(resolved,target,MAXBUF);
6968                                         }
6969                                         /* hostname now in 'target' */
6970                                         IP[client.sin_addr] = new string(resolved);
6971                                         /* hostname in cache */
6972                                 }
6973                                 else
6974                                 {
6975                                         /* found ip (cached) */
6976                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
6977                                         iscached = true;
6978                                 }
6979
6980                                 if (incomingSockfd < 0)
6981                                 {
6982                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
6983                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
6984                                 }
6985                                 else
6986                                 {
6987                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
6988                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
6989                                 }
6990                                 goto label;
6991                         }
6992                 }
6993         }
6994         label:
6995         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
6996 }
6997 /* not reached */
6998 close (incomingSockfd);
6999 }
7000