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                                                 if (ChanAnyOnThisServer(Ptr,servers[j]->name))
1605                                                 {
1606                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1607                                                         log(DEBUG,"Sent J token");
1608                                                 }
1609                                         }
1610                                 }
1611                         }
1612
1613                         log(DEBUG,"Sent JOIN to client");
1614
1615                         if (Ptr->topicset)
1616                         {
1617                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1618                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1619                         }
1620                         userlist(user,Ptr);
1621                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1622                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1623                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1624                         FOREACH_MOD OnUserJoin(user,Ptr);
1625                         return Ptr;
1626                 }
1627         }
1628         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1629         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1630         return NULL;
1631 }
1632
1633 /* remove a channel from a users record, and remove the record from memory
1634  * if the channel has become empty */
1635
1636 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1637 {
1638         if ((!user) || (!cname))
1639         {
1640                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1641                 return NULL;
1642         }
1643
1644         chanrec* Ptr;
1645         int created = 0;
1646
1647         if ((!cname) || (!user))
1648         {
1649                 return NULL;
1650         }
1651
1652         Ptr = FindChan(cname);
1653
1654         if (!Ptr)
1655         {
1656                 return NULL;
1657         }
1658
1659         FOREACH_MOD OnUserPart(user,Ptr);
1660         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1661
1662         for (int i =0; i != MAXCHANS; i++)
1663         {
1664                 /* zap it from the channel list of the user */
1665                 if (user->chans[i].channel == Ptr)
1666                 {
1667                         if (reason)
1668                         {
1669                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1670
1671                                 if (!local)
1672                                 {
1673                                         char buffer[MAXBUF];
1674                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1675                                         for (int j = 0; j < 255; j++)
1676                                         {
1677                                                 if (servers[j] != NULL)
1678                                                 {
1679                                                         if (ChanAnyOnThisServer(Ptr,servers[j]->name))
1680                                                         {
1681                                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1682                                                                 log(DEBUG,"Sent L token (with reason)");
1683                                                         }
1684                                                 }
1685                                         }
1686                                 }
1687
1688
1689                         }
1690                         else
1691                         {
1692                                 if (!local)
1693                                 {
1694                                         char buffer[MAXBUF];
1695                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1696                                         for (int j = 0; j < 255; j++)
1697                                         {
1698                                                 if (servers[j] != NULL)
1699                                                 {
1700                                                 if (ChanAnyOnThisServer(Ptr,servers[j]->name))
1701                                                         {
1702                                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1703                                                                 log(DEBUG,"Sent L token (no reason)");
1704                                                         }
1705                                                 }
1706                                         }
1707                                 }
1708
1709                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1710                         }
1711                         user->chans[i].uc_modes = 0;
1712                         user->chans[i].channel = NULL;
1713                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1714                         break;
1715                 }
1716         }
1717
1718         /* if there are no users left on the channel */
1719         if (!usercount(Ptr))
1720         {
1721                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1722
1723                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1724
1725                 /* kill the record */
1726                 if (iter != chanlist.end())
1727                 {
1728                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1729                         delete iter->second;
1730                         chanlist.erase(iter);
1731                 }
1732         }
1733 }
1734
1735
1736 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1737 {
1738         if ((!src) || (!user) || (!Ptr) || (!reason))
1739         {
1740                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1741                 return;
1742         }
1743
1744         int i = 0;
1745         int created = 0;
1746
1747         if ((!Ptr) || (!user) || (!src))
1748         {
1749                 return;
1750         }
1751
1752         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1753
1754         if (!has_channel(user,Ptr))
1755         {
1756                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1757                 return;
1758         }
1759         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1760         {
1761                 if (cstatus(src,Ptr) == STATUS_HOP)
1762                 {
1763                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1764                 }
1765                 else
1766                 {
1767                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1768                 }
1769
1770                 return;
1771         }
1772
1773         for (int i =0; i != MAXCHANS; i++)
1774         {
1775                 /* zap it from the channel list of the user */
1776                 if (user->chans[i].channel == Ptr)
1777                 {
1778                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1779                         user->chans[i].uc_modes = 0;
1780                         user->chans[i].channel = NULL;
1781                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1782                         break;
1783                 }
1784         }
1785
1786         /* if there are no users left on the channel */
1787         if (!usercount(Ptr))
1788         {
1789                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1790
1791                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1792
1793                 /* kill the record */
1794                 if (iter != chanlist.end())
1795                 {
1796                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1797                         delete iter->second;
1798                         chanlist.erase(iter);
1799                 }
1800         }
1801 }
1802
1803
1804 /* returns 1 if user u has channel c in their record, 0 if not */
1805
1806 int has_channel(userrec *u, chanrec *c)
1807 {
1808         if ((!u) || (!c))
1809         {
1810                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1811                 return 0;
1812         }
1813         for (int i =0; i != MAXCHANS; i++)
1814         {
1815                 if (u->chans[i].channel == c)
1816                 {
1817                         return 1;
1818                 }
1819         }
1820         return 0;
1821 }
1822
1823 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1824 {
1825         userrec *d;
1826         int i;
1827
1828         if ((!user) || (!dest) || (!chan))
1829         {
1830                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1831                 return 0;
1832         }
1833         if (status != STATUS_OP)
1834         {
1835                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1836                 return 0;
1837         }
1838         else
1839         {
1840                 if (!isnick(dest))
1841                 {
1842                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1843                         return 0;
1844                 }
1845                 d = Find(dest);
1846                 if (!d)
1847                 {
1848                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1849                         return 0;
1850                 }
1851                 else
1852                 {
1853                         for (int i = 0; i != MAXCHANS; i++)
1854                         {
1855                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1856                                 {
1857                                         if (d->chans[i].uc_modes & UCMODE_OP)
1858                                         {
1859                                                 /* mode already set on user, dont allow multiple */
1860                                                 return 0;
1861                                         }
1862                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1863                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1864                                 }
1865                         }
1866                 }
1867         }
1868         return 1;
1869 }
1870
1871 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1872 {
1873         userrec *d;
1874         int i;
1875
1876         if ((!user) || (!dest) || (!chan))
1877         {
1878                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1879                 return 0;
1880         }
1881         if (status != STATUS_OP)
1882         {
1883                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1884                 return 0;
1885         }
1886         else
1887         {
1888                 d = Find(dest);
1889                 if (!isnick(dest))
1890                 {
1891                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1892                         return 0;
1893                 }
1894                 if (!d)
1895                 {
1896                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1897                         return 0;
1898                 }
1899                 else
1900                 {
1901                         for (int i = 0; i != MAXCHANS; i++)
1902                         {
1903                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1904                                 {
1905                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1906                                         {
1907                                                 /* mode already set on user, dont allow multiple */
1908                                                 return 0;
1909                                         }
1910                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1911                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1912                                 }
1913                         }
1914                 }
1915         }
1916         return 1;
1917 }
1918
1919 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1920 {
1921         userrec *d;
1922         int i;
1923
1924         if ((!user) || (!dest) || (!chan))
1925         {
1926                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1927                 return 0;
1928         }
1929         if (status < STATUS_HOP)
1930         {
1931                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1932                 return 0;
1933         }
1934         else
1935         {
1936                 d = Find(dest);
1937                 if (!isnick(dest))
1938                 {
1939                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1940                         return 0;
1941                 }
1942                 if (!d)
1943                 {
1944                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1945                         return 0;
1946                 }
1947                 else
1948                 {
1949                         for (int i = 0; i != MAXCHANS; i++)
1950                         {
1951                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1952                                 {
1953                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1954                                         {
1955                                                 /* mode already set on user, dont allow multiple */
1956                                                 return 0;
1957                                         }
1958                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1959                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1960                                 }
1961                         }
1962                 }
1963         }
1964         return 1;
1965 }
1966
1967 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1968 {
1969         userrec *d;
1970         int i;
1971
1972         if ((!user) || (!dest) || (!chan))
1973         {
1974                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1975                 return 0;
1976         }
1977         if (status != STATUS_OP)
1978         {
1979                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1980                 return 0;
1981         }
1982         else
1983         {
1984                 d = Find(dest);
1985                 if (!isnick(dest))
1986                 {
1987                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1988                         return 0;
1989                 }
1990                 if (!d)
1991                 {
1992                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1993                         return 0;
1994                 }
1995                 else
1996                 {
1997                         for (int i = 0; i != MAXCHANS; i++)
1998                         {
1999                                 if ((d->chans[i].channel == chan) && (chan != NULL))
2000                                 {
2001                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2002                                         {
2003                                                 /* mode already set on user, dont allow multiple */
2004                                                 return 0;
2005                                         }
2006                                         d->chans[i].uc_modes ^= UCMODE_OP;
2007                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2008                                 }
2009                         }
2010                 }
2011         }
2012         return 1;
2013 }
2014
2015 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2016 {
2017         userrec *d;
2018         int i;
2019
2020         if ((!user) || (!dest) || (!chan))
2021         {
2022                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2023                 return 0;
2024         }
2025         if (status != STATUS_OP)
2026         {
2027                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2028                 return 0;
2029         }
2030         else
2031         {
2032                 d = Find(dest);
2033                 if (!isnick(dest))
2034                 {
2035                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2036                         return 0;
2037                 }
2038                 if (!d)
2039                 {
2040                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2041                         return 0;
2042                 }
2043                 else
2044                 {
2045                         for (int i = 0; i != MAXCHANS; i++)
2046                         {
2047                                 if ((d->chans[i].channel == chan) && (chan != NULL))
2048                                 {
2049                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2050                                         {
2051                                                 /* mode already set on user, dont allow multiple */
2052                                                 return 0;
2053                                         }
2054                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2055                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2056                                 }
2057                         }
2058                 }
2059         }
2060         return 1;
2061 }
2062
2063 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2064 {
2065         userrec *d;
2066         int i;
2067
2068         if ((!user) || (!dest) || (!chan))
2069         {
2070                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2071                 return 0;
2072         }
2073         if (status < STATUS_HOP)
2074         {
2075                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2076                 return 0;
2077         }
2078         else
2079         {
2080                 d = Find(dest);
2081                 if (!isnick(dest))
2082                 {
2083                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2084                         return 0;
2085                 }
2086                 if (!d)
2087                 {
2088                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2089                         return 0;
2090                 }
2091                 else
2092                 {
2093                         for (int i = 0; i != MAXCHANS; i++)
2094                         {
2095                                 if ((d->chans[i].channel == chan) && (chan != NULL))
2096                                 {
2097                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2098                                         {
2099                                                 /* mode already set on user, dont allow multiple */
2100                                                 return 0;
2101                                         }
2102                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2103                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2104                                 }
2105                         }
2106                 }
2107         }
2108         return 1;
2109 }
2110
2111 void TidyBan(char *ban)
2112 {
2113         if (!ban) {
2114                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2115                 return;
2116         }
2117
2118         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2119
2120         strcpy(temp,ban);
2121
2122         char* pos_of_pling = strchr(temp,'!');
2123         char* pos_of_at = strchr(temp,'@');
2124
2125         pos_of_pling[0] = '\0';
2126         pos_of_at[0] = '\0';
2127         pos_of_pling++;
2128         pos_of_at++;
2129
2130         strncpy(NICK,temp,NICKMAX);
2131         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2132         strncpy(HOST,pos_of_at,160);
2133
2134         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2135 }
2136
2137 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2138 {
2139         if ((!user) || (!dest) || (!chan)) {
2140                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2141                 return 0;
2142         }
2143
2144         BanItem b;
2145         if ((!user) || (!dest) || (!chan))
2146                 return 0;
2147         if (strchr(dest,'!')==0)
2148                 return 0;
2149         if (strchr(dest,'@')==0)
2150                 return 0;
2151         for (int i = 0; i < strlen(dest); i++)
2152                 if (dest[i] < 32)
2153                         return 0;
2154         for (int i = 0; i < strlen(dest); i++)
2155                 if (dest[i] > 126)
2156                         return 0;
2157         int c = 0;
2158         for (int i = 0; i < strlen(dest); i++)
2159                 if (dest[i] == '!')
2160                         c++;
2161         if (c>1)
2162                 return 0;
2163         c = 0;
2164         for (int i = 0; i < strlen(dest); i++)
2165                 if (dest[i] == '@')
2166                         c++;
2167         if (c>1)
2168                 return 0;
2169         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2170
2171         TidyBan(dest);
2172         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2173         {
2174                 if (!strcasecmp(i->data,dest))
2175                 {
2176                         // dont allow a user to set the same ban twice
2177                         return 0;
2178                 }
2179         }
2180
2181         b.set_time = time(NULL);
2182         strncpy(b.data,dest,MAXBUF);
2183         strncpy(b.set_by,user->nick,NICKMAX);
2184         chan->bans.push_back(b);
2185         return 1;
2186 }
2187
2188 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2189 {
2190         if ((!user) || (!dest) || (!chan)) {
2191                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2192                 return 0;
2193         }
2194
2195         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2196         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2197         {
2198                 if (!strcasecmp(i->data,dest))
2199                 {
2200                         chan->bans.erase(i);
2201                         return 1;
2202                 }
2203         }
2204         return 0;
2205 }
2206
2207 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2208 {
2209         if (!parameters) {
2210                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2211                 return;
2212         }
2213
2214         char modelist[MAXBUF];
2215         char outlist[MAXBUF];
2216         char outstr[MAXBUF];
2217         char outpars[32][MAXBUF];
2218         int param = 2;
2219         int pc = 0;
2220         int ptr = 0;
2221         int mdir = 1;
2222         int r = 0;
2223         bool k_set = false, l_set = false;
2224
2225         if (pcnt < 2)
2226         {
2227                 return;
2228         }
2229
2230         log(DEBUG,"process_modes: start");
2231
2232         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2233                                         /* parameters[2] onwards are parameters for
2234                                          * modes that require them :) */
2235         strcpy(outlist,"+");
2236         mdir = 1;
2237
2238         log(DEBUG,"process_modes: modelist: %s",modelist);
2239
2240         for (ptr = 0; ptr < strlen(modelist); ptr++)
2241         {
2242                 r = 0;
2243
2244                 {
2245                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2246                         char modechar = modelist[ptr];
2247                         switch (modelist[ptr])
2248                         {
2249                                 case '-':
2250                                         if (mdir != 0)
2251                                         {
2252                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2253                                                 {
2254                                                         outlist[strlen(outlist)-1] = '-';
2255                                                 }
2256                                                 else
2257                                                 {
2258                                                         strcat(outlist,"-");
2259                                                 }
2260                                         }
2261                                         mdir = 0;
2262
2263                                 break;
2264
2265                                 case '+':
2266                                         if (mdir != 1)
2267                                         {
2268                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2269                                                 {
2270                                                         outlist[strlen(outlist)-1] = '+';
2271                                                 }
2272                                                 else
2273                                                 {
2274                                                         strcat(outlist,"+");
2275                                                 }
2276                                         }
2277                                         mdir = 1;
2278                                 break;
2279
2280                                 case 'o':
2281                                         if ((param >= pcnt)) break;
2282                                         if (mdir == 1)
2283                                         {
2284                                                 r = give_ops(user,parameters[param++],chan,status);
2285                                         }
2286                                         else
2287                                         {
2288                                                 r = take_ops(user,parameters[param++],chan,status);
2289                                         }
2290                                         if (r)
2291                                         {
2292                                                 strcat(outlist,"o");
2293                                                 strcpy(outpars[pc++],parameters[param-1]);
2294                                         }
2295                                 break;
2296
2297                                 case 'h':
2298                                         if ((param >= pcnt)) break;
2299                                         if (mdir == 1)
2300                                         {
2301                                                 r = give_hops(user,parameters[param++],chan,status);
2302                                         }
2303                                         else
2304                                         {
2305                                                 r = take_hops(user,parameters[param++],chan,status);
2306                                         }
2307                                         if (r)
2308                                         {
2309                                                 strcat(outlist,"h");
2310                                                 strcpy(outpars[pc++],parameters[param-1]);
2311                                         }
2312                                 break;
2313
2314
2315                                 case 'v':
2316                                         if ((param >= pcnt)) break;
2317                                         if (mdir == 1)
2318                                         {
2319                                                 r = give_voice(user,parameters[param++],chan,status);
2320                                         }
2321                                         else
2322                                         {
2323                                                 r = take_voice(user,parameters[param++],chan,status);
2324                                         }
2325                                         if (r)
2326                                         {
2327                                                 strcat(outlist,"v");
2328                                                 strcpy(outpars[pc++],parameters[param-1]);
2329                                         }
2330                                 break;
2331
2332                                 case 'b':
2333                                         if ((param >= pcnt)) break;
2334                                         if (mdir == 1)
2335                                         {
2336                                                 r = add_ban(user,parameters[param++],chan,status);
2337                                         }
2338                                         else
2339                                         {
2340                                                 r = take_ban(user,parameters[param++],chan,status);
2341                                         }
2342                                         if (r)
2343                                         {
2344                                                 strcat(outlist,"b");
2345                                                 strcpy(outpars[pc++],parameters[param-1]);
2346                                         }
2347                                 break;
2348
2349
2350                                 case 'k':
2351                                         if ((param >= pcnt))
2352                                                 break;
2353
2354                                         if (mdir == 1)
2355                                         {
2356                                                 if (k_set)
2357                                                         break;
2358
2359                                                 if (!strcmp(chan->key,""))
2360                                                 {
2361                                                         strcat(outlist,"k");
2362                                                         char key[MAXBUF];
2363                                                         strcpy(key,parameters[param++]);
2364                                                         if (strlen(key)>32) {
2365                                                                 key[31] = '\0';
2366                                                         }
2367                                                         strcpy(outpars[pc++],key);
2368                                                         strcpy(chan->key,key);
2369                                                         k_set = true;
2370                                                 }
2371                                         }
2372                                         else
2373                                         {
2374                                                 /* checks on -k are case sensitive and only accurate to the
2375                                                    first 32 characters */
2376                                                 char key[MAXBUF];
2377                                                 strcpy(key,parameters[param++]);
2378                                                 if (strlen(key)>32) {
2379                                                         key[31] = '\0';
2380                                                 }
2381                                                 /* only allow -k if correct key given */
2382                                                 if (!strcmp(chan->key,key))
2383                                                 {
2384                                                         strcat(outlist,"k");
2385                                                         strcpy(chan->key,"");
2386                                                         strcpy(outpars[pc++],key);
2387                                                 }
2388                                         }
2389                                 break;
2390
2391                                 case 'l':
2392                                         if (mdir == 0)
2393                                         {
2394                                                 if (chan->limit)
2395                                                 {
2396                                                         strcat(outlist,"l");
2397                                                         chan->limit = 0;
2398                                                 }
2399                                         }
2400
2401                                         if ((param >= pcnt)) break;
2402                                         if (mdir == 1)
2403                                         {
2404                                                 if (l_set)
2405                                                         break;
2406
2407                                                 bool invalid = false;
2408                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2409                                                 {
2410                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2411                                                         {
2412                                                                 invalid = true;
2413                                                         }
2414                                                 }
2415                                                 if (atoi(parameters[param]) < 1)
2416                                                 {
2417                                                         invalid = true;
2418                                                 }
2419
2420                                                 if (invalid)
2421                                                         break;
2422
2423                                                 chan->limit = atoi(parameters[param]);
2424                                                 if (chan->limit)
2425                                                 {
2426                                                         strcat(outlist,"l");
2427                                                         strcpy(outpars[pc++],parameters[param++]);
2428                                                         l_set = true;
2429                                                 }
2430                                         }
2431                                 break;
2432
2433                                 case 'i':
2434                                         if (chan->inviteonly != mdir)
2435                                         {
2436                                                 strcat(outlist,"i");
2437                                         }
2438                                         chan->inviteonly = mdir;
2439                                 break;
2440
2441                                 case 't':
2442                                         if (chan->topiclock != mdir)
2443                                         {
2444                                                 strcat(outlist,"t");
2445                                         }
2446                                         chan->topiclock = mdir;
2447                                 break;
2448
2449                                 case 'n':
2450                                         if (chan->noexternal != mdir)
2451                                         {
2452                                                 strcat(outlist,"n");
2453                                         }
2454                                         chan->noexternal = mdir;
2455                                 break;
2456
2457                                 case 'm':
2458                                         if (chan->moderated != mdir)
2459                                         {
2460                                                 strcat(outlist,"m");
2461                                         }
2462                                         chan->moderated = mdir;
2463                                 break;
2464
2465                                 case 's':
2466                                         if (chan->secret != mdir)
2467                                         {
2468                                                 strcat(outlist,"s");
2469                                                 if (chan->c_private)
2470                                                 {
2471                                                         chan->c_private = 0;
2472                                                         if (mdir)
2473                                                         {
2474                                                                 strcat(outlist,"-p+");
2475                                                         }
2476                                                         else
2477                                                         {
2478                                                                 strcat(outlist,"+p-");
2479                                                         }
2480                                                 }
2481                                         }
2482                                         chan->secret = mdir;
2483                                 break;
2484
2485                                 case 'p':
2486                                         if (chan->c_private != mdir)
2487                                         {
2488                                                 strcat(outlist,"p");
2489                                                 if (chan->secret)
2490                                                 {
2491                                                         chan->secret = 0;
2492                                                         if (mdir)
2493                                                         {
2494                                                                 strcat(outlist,"-s+");
2495                                                         }
2496                                                         else
2497                                                         {
2498                                                                 strcat(outlist,"+s-");
2499                                                         }
2500                                                 }
2501                                         }
2502                                         chan->c_private = mdir;
2503                                 break;
2504
2505                                 default:
2506                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2507                                         string_list p;
2508                                         p.clear();
2509                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2510                                         {
2511                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2512                                                 break;
2513                                         }
2514                                         if (ModeDefined(modechar,MT_CHANNEL))
2515                                         {
2516                                                 log(DEBUG,"A module has claimed this mode");
2517                                                 if (param<pcnt)
2518                                                 {
2519                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2520                                                         {
2521                                                                 p.push_back(parameters[param]);
2522                                                         }
2523                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2524                                                         {
2525                                                                 p.push_back(parameters[param]);
2526                                                         }
2527                                                 }
2528                                                 bool handled = false;
2529                                                 if (param>=pcnt)
2530                                                 {
2531                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2532                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2533                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2534                                                         {
2535                                                                 handled = true;
2536                                                                 param++;
2537                                                         }
2538                                                 }
2539                                                 for (int i = 0; i <= MODCOUNT; i++)
2540                                                 {
2541                                                         if (!handled)
2542                                                         {
2543                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2544                                                                 {
2545                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2546                                                                         char app[] = {modechar, 0};
2547                                                                         if (ptr>0)
2548                                                                         {
2549                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2550                                                                                 {
2551                                                                                         strcat(outlist, app);
2552                                                                                 }
2553                                                                                 else if (!strchr(outlist,modechar))
2554                                                                                 {
2555                                                                                         strcat(outlist, app);
2556                                                                                 }
2557                                                                         }
2558                                                                         chan->SetCustomMode(modechar,mdir);
2559                                                                         // include parameters in output if mode has them
2560                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2561                                                                         {
2562                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2563                                                                                 strcpy(outpars[pc++],parameters[param++]);
2564                                                                         }
2565                                                                         // break, because only one module can handle the mode.
2566                                                                         handled = true;
2567                                                                 }
2568                                                         }
2569                                                 }
2570                                         }
2571                                 break;
2572
2573                         }
2574                 }
2575         }
2576
2577         /* this ensures only the *valid* modes are sent out onto the network */
2578         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2579         {
2580                 outlist[strlen(outlist)-1] = '\0';
2581         }
2582         if (strcmp(outlist,""))
2583         {
2584                 strcpy(outstr,outlist);
2585                 for (ptr = 0; ptr < pc; ptr++)
2586                 {
2587                         strcat(outstr," ");
2588                         strcat(outstr,outpars[ptr]);
2589                 }
2590                 if (local)
2591                 {
2592                         log(DEBUG,"Local mode change");
2593                         WriteChannelLocal(chan, user, "MODE %s",outstr);
2594                 }
2595                 else
2596                 {
2597                         if (servermode)
2598                         {
2599                                 if (!silent)
2600                                 {
2601                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2602                                         // M token for a usermode must go to all servers
2603                                         char buffer[MAXBUF];
2604                                         snprintf(buffer,MAXBUF,"M %s %s",ServerName,chan->name, outstr);
2605                                         for (int j = 0; j < 255; j++)
2606                                         {
2607                                                 if (servers[j] != NULL)
2608                                                 {
2609                                                         if (strcmp(servers[j]->name,ServerName))
2610                                                         {
2611                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2612                                                                 {
2613                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2614                                                                         log(DEBUG,"Sent M token");
2615                                                                 }
2616                                                         }
2617                                                 }
2618                                         }
2619                                 }
2620
2621                         }
2622                         else
2623                         {
2624                                 if (!silent)
2625                                 {
2626                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2627                                         // M token for a usermode must go to all servers
2628                                         char buffer[MAXBUF];
2629                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2630                                         for (int j = 0; j < 255; j++)
2631                                         {
2632                                                 if (servers[j] != NULL)
2633                                                 {
2634                                                         if (strcmp(servers[j]->name,ServerName))
2635                                                         {
2636                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2637                                                                 {
2638                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2639                                                                         log(DEBUG,"Sent m token");
2640                                                                 }
2641                                                         }
2642                                                 }
2643                                         }
2644                                 }
2645                         }
2646                 }
2647         }
2648 }
2649
2650 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2651
2652 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2653 {
2654         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2655         // RFC1459 specified modes
2656         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2657         {
2658                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2659                 return true;
2660         }
2661
2662         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2663         if ((strchr(sourcemodes,'o')) && (!adding))
2664         {
2665                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2666                 return true;
2667         }
2668         else if (umode == 'o')
2669         {
2670                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2671                 return false;
2672         }
2673
2674         // process any module-defined modes that need oper
2675         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2676         {
2677                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2678                 return true;
2679         }
2680         else
2681         if (ModeDefined(umode,MT_CLIENT))
2682         {
2683                 // process any module-defined modes that don't need oper
2684                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2685                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2686                 {
2687                         // no, this mode needs oper, and this user 'aint got what it takes!
2688                         return false;
2689                 }
2690                 return true;
2691         }
2692
2693         // anything else - return false.
2694         log(DEBUG,"umode %c not known by any ruleset",umode);
2695         return false;
2696 }
2697
2698 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2699 {
2700         userrec* s2;
2701         bool faked = false;
2702         if (!source)
2703         {
2704                 s2 = new userrec;
2705                 strncpy(s2->nick,ServerName,NICKMAX);
2706                 strcpy(s2->modes,"o");
2707                 s2->fd = -1;
2708                 source = s2;
2709                 faked = true;
2710         }
2711         string_list p;
2712         p.clear();
2713         if (ModeDefined(umode,MT_CLIENT))
2714         {
2715                 for (int i = 0; i <= MODCOUNT; i++)
2716                 {
2717                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2718                         {
2719                                 log(DEBUG,"Module claims umode %c",umode);
2720                                 return true;
2721                         }
2722                 }
2723                 log(DEBUG,"No module claims umode %c",umode);
2724                 if (faked)
2725                 {
2726                         delete s2;
2727                         source = NULL;
2728                 }
2729                 return false;
2730         }
2731         else
2732         {
2733                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2734                 if (faked)
2735                 {
2736                         delete s2;
2737                         source = NULL;
2738                 }
2739                 return false;
2740         }
2741 }
2742
2743 void handle_mode(char **parameters, int pcnt, userrec *user)
2744 {
2745         chanrec* Ptr;
2746         userrec* dest;
2747         int can_change,i;
2748         int direction = 1;
2749         char outpars[MAXBUF];
2750
2751         dest = Find(parameters[0]);
2752
2753         if (!user)
2754         {
2755                 return;
2756         }
2757
2758         if ((dest) && (pcnt == 1))
2759         {
2760                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2761                 return;
2762         }
2763
2764         if ((dest) && (pcnt > 1))
2765         {
2766                 char dmodes[MAXBUF];
2767                 strncpy(dmodes,dest->modes,MAXBUF);
2768                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2769
2770                 can_change = 0;
2771                 if (user != dest)
2772                 {
2773                         if (strchr(user->modes,'o'))
2774                         {
2775                                 can_change = 1;
2776                         }
2777                 }
2778                 else
2779                 {
2780                         can_change = 1;
2781                 }
2782                 if (!can_change)
2783                 {
2784                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2785                         return;
2786                 }
2787
2788                 strcpy(outpars,"+");
2789                 direction = 1;
2790
2791                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2792                         return;
2793
2794                 for (int i = 0; i < strlen(parameters[1]); i++)
2795                 {
2796                         if (parameters[1][i] == '+')
2797                         {
2798                                 if (direction != 1)
2799                                 {
2800                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2801                                         {
2802                                                 outpars[strlen(outpars)-1] = '+';
2803                                         }
2804                                         else
2805                                         {
2806                                                 strcat(outpars,"+");
2807                                         }
2808                                 }
2809                                 direction = 1;
2810                         }
2811                         else
2812                         if (parameters[1][i] == '-')
2813                         {
2814                                 if (direction != 0)
2815                                 {
2816                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2817                                         {
2818                                                 outpars[strlen(outpars)-1] = '-';
2819                                         }
2820                                         else
2821                                         {
2822                                                 strcat(outpars,"-");
2823                                         }
2824                                 }
2825                                 direction = 0;
2826                         }
2827                         else
2828                         {
2829                                 can_change = 0;
2830                                 if (strchr(user->modes,'o'))
2831                                 {
2832                                         can_change = 1;
2833                                 }
2834                                 else
2835                                 {
2836                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2837                                         {
2838                                                 can_change = 1;
2839                                         }
2840                                 }
2841                                 if (can_change)
2842                                 {
2843                                         if (direction == 1)
2844                                         {
2845                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2846                                                 {
2847                                                         char umode = parameters[1][i];
2848                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2849                                                         {
2850                                                                 dmodes[strlen(dmodes)+1]='\0';
2851                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2852                                                                 outpars[strlen(outpars)+1]='\0';
2853                                                                 outpars[strlen(outpars)] = parameters[1][i];
2854                                                         }
2855                                                 }
2856                                         }
2857                                         else
2858                                         {
2859                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2860                                                 {
2861                                                         char umode = parameters[1][i];
2862                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2863                                                         {
2864                                                                 int q = 0;
2865                                                                 char temp[MAXBUF];
2866                                                                 char moo[MAXBUF];
2867
2868                                                                 outpars[strlen(outpars)+1]='\0';
2869                                                                 outpars[strlen(outpars)] = parameters[1][i];
2870
2871                                                                 strcpy(temp,"");
2872                                                                 for (q = 0; q < strlen(dmodes); q++)
2873                                                                 {
2874                                                                         if (dmodes[q] != parameters[1][i])
2875                                                                         {
2876                                                                                 moo[0] = dmodes[q];
2877                                                                                 moo[1] = '\0';
2878                                                                                 strcat(temp,moo);
2879                                                                         }
2880                                                                 }
2881                                                                 strcpy(dmodes,temp);
2882                                                         }
2883                                                 }
2884                                         }
2885                                 }
2886                         }
2887                 }
2888                 if (strlen(outpars))
2889                 {
2890                         char b[MAXBUF];
2891                         strcpy(b,"");
2892                         int z = 0;
2893                         int i = 0;
2894                         while (i < strlen (outpars))
2895                         {
2896                                 b[z++] = outpars[i++];
2897                                 b[z] = '\0';
2898                                 if (i<strlen(outpars)-1)
2899                                 {
2900                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2901                                         {
2902                                                 // someones playing silly buggers and trying
2903                                                 // to put a +- or -+ into the line...
2904                                                 i++;
2905                                         }
2906                                 }
2907                                 if (i == strlen(outpars)-1)
2908                                 {
2909                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2910                                         {
2911                                                 i++;
2912                                         }
2913                                 }
2914                         }
2915
2916                         z = strlen(b)-1;
2917                         if ((b[z] == '-') || (b[z] == '+'))
2918                                 b[z] == '\0';
2919
2920                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2921                                 return;
2922
2923                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2924
2925                         // M token for a usermode must go to all servers
2926                         char buffer[MAXBUF];
2927                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2928                         for (int j = 0; j < 255; j++)
2929                         {
2930                                 if (servers[j] != NULL)
2931                                 {
2932                                         if (strcmp(servers[j]->name,ServerName))
2933                                         {
2934                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2935                                                 log(DEBUG,"Sent m token");
2936                                         }
2937                                 }
2938                         }
2939
2940                         if (strlen(dmodes)>MAXMODES)
2941                         {
2942                                 dmodes[MAXMODES-1] = '\0';
2943                         }
2944                         log(DEBUG,"Stripped mode line");
2945                         log(DEBUG,"Line dest is now %s",dmodes);
2946                         strncpy(dest->modes,dmodes,MAXMODES);
2947
2948                 }
2949
2950                 return;
2951         }
2952
2953         Ptr = FindChan(parameters[0]);
2954         if (Ptr)
2955         {
2956                 if (pcnt == 1)
2957                 {
2958                         /* just /modes #channel */
2959                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2960                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2961                         return;
2962                 }
2963                 else
2964                 if (pcnt == 2)
2965                 {
2966                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2967                         {
2968
2969                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2970                                 {
2971                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2972                                 }
2973                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2974                         }
2975                 }
2976
2977                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2978                 {
2979                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
2980                         return;
2981                 }
2982
2983                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
2984         }
2985         else
2986         {
2987                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
2988         }
2989 }
2990
2991
2992
2993
2994 void server_mode(char **parameters, int pcnt, userrec *user)
2995 {
2996         chanrec* Ptr;
2997         userrec* dest;
2998         int can_change,i;
2999         int direction = 1;
3000         char outpars[MAXBUF];
3001
3002         dest = Find(parameters[0]);
3003
3004         // fix: ChroNiCk found this - we cant use this as debug if its null!
3005         if (dest)
3006         {
3007                 log(DEBUG,"server_mode on %s",dest->nick);
3008         }
3009
3010         if ((dest) && (pcnt > 1))
3011         {
3012                 log(DEBUG,"params > 1");
3013
3014                 char dmodes[MAXBUF];
3015                 strncpy(dmodes,dest->modes,MAXBUF);
3016
3017                 strcpy(outpars,"+");
3018                 direction = 1;
3019
3020                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3021                         return;
3022
3023                 for (int i = 0; i < strlen(parameters[1]); i++)
3024                 {
3025                         if (parameters[1][i] == '+')
3026                         {
3027                                 if (direction != 1)
3028                                 {
3029                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3030                                         {
3031                                                 outpars[strlen(outpars)-1] = '+';
3032                                         }
3033                                         else
3034                                         {
3035                                                 strcat(outpars,"+");
3036                                         }
3037                                 }
3038                                 direction = 1;
3039                         }
3040                         else
3041                         if (parameters[1][i] == '-')
3042                         {
3043                                 if (direction != 0)
3044                                 {
3045                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3046                                         {
3047                                                 outpars[strlen(outpars)-1] = '-';
3048                                         }
3049                                         else
3050                                         {
3051                                                 strcat(outpars,"-");
3052                                         }
3053                                 }
3054                                 direction = 0;
3055                         }
3056                         else
3057                         {
3058                                 log(DEBUG,"begin mode processing entry");
3059                                 can_change = 1;
3060                                 if (can_change)
3061                                 {
3062                                         if (direction == 1)
3063                                         {
3064                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3065                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3066                                                 {
3067                                                         char umode = parameters[1][i];
3068                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3069                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3070                                                         {
3071                                                                 dmodes[strlen(dmodes)+1]='\0';
3072                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3073                                                                 outpars[strlen(outpars)+1]='\0';
3074                                                                 outpars[strlen(outpars)] = parameters[1][i];
3075                                                         }
3076                                                 }
3077                                         }
3078                                         else
3079                                         {
3080                                                 // can only remove a mode they already have
3081                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3082                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3083                                                 {
3084                                                         char umode = parameters[1][i];
3085                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3086                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3087                                                         {
3088                                                                 int q = 0;
3089                                                                 char temp[MAXBUF];
3090                                                                 char moo[MAXBUF];
3091
3092                                                                 outpars[strlen(outpars)+1]='\0';
3093                                                                 outpars[strlen(outpars)] = parameters[1][i];
3094
3095                                                                 strcpy(temp,"");
3096                                                                 for (q = 0; q < strlen(dmodes); q++)
3097                                                                 {
3098                                                                         if (dmodes[q] != parameters[1][i])
3099                                                                         {
3100                                                                                 moo[0] = dmodes[q];
3101                                                                                 moo[1] = '\0';
3102                                                                                 strcat(temp,moo);
3103                                                                         }
3104                                                                 }
3105                                                                 strcpy(dmodes,temp);
3106                                                         }
3107                                                 }
3108                                         }
3109                                 }
3110                         }
3111                 }
3112                 if (strlen(outpars))
3113                 {
3114                         char b[MAXBUF];
3115                         strcpy(b,"");
3116                         int z = 0;
3117                         int i = 0;
3118                         while (i < strlen (outpars))
3119                         {
3120                                 b[z++] = outpars[i++];
3121                                 b[z] = '\0';
3122                                 if (i<strlen(outpars)-1)
3123                                 {
3124                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3125                                         {
3126                                                 // someones playing silly buggers and trying
3127                                                 // to put a +- or -+ into the line...
3128                                                 i++;
3129                                         }
3130                                 }
3131                                 if (i == strlen(outpars)-1)
3132                                 {
3133                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3134                                         {
3135                                                 i++;
3136                                         }
3137                                 }
3138                         }
3139
3140                         z = strlen(b)-1;
3141                         if ((b[z] == '-') || (b[z] == '+'))
3142                                 b[z] == '\0';
3143
3144                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3145                                 return;
3146
3147                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3148
3149                         // M token for a usermode must go to all servers
3150                         char buffer[MAXBUF];
3151                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3152                         for (int j = 0; j < 255; j++)
3153                         {
3154                                 if (servers[j] != NULL)
3155                                 {
3156                                         if (strcmp(servers[j]->name,ServerName))
3157                                         {
3158                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3159                                                 log(DEBUG,"Sent m token");
3160                                         }
3161                                 }
3162                         }
3163
3164                         if (strlen(dmodes)>MAXMODES)
3165                         {
3166                                 dmodes[MAXMODES-1] = '\0';
3167                         }
3168                         log(DEBUG,"Stripped mode line");
3169                         log(DEBUG,"Line dest is now %s",dmodes);
3170                         strncpy(dest->modes,dmodes,MAXMODES);
3171
3172                 }
3173
3174                 return;
3175         }
3176
3177         Ptr = FindChan(parameters[0]);
3178         if (Ptr)
3179         {
3180                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3181         }
3182         else
3183         {
3184                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3185         }
3186 }
3187
3188
3189
3190 void merge_mode(char **parameters, int pcnt)
3191 {
3192         chanrec* Ptr;
3193         userrec* dest;
3194         int can_change,i;
3195         int direction = 1;
3196         char outpars[MAXBUF];
3197
3198         dest = Find(parameters[0]);
3199
3200         // fix: ChroNiCk found this - we cant use this as debug if its null!
3201         if (dest)
3202         {
3203                 log(DEBUG,"merge_mode on %s",dest->nick);
3204         }
3205
3206         if ((dest) && (pcnt > 1))
3207         {
3208                 log(DEBUG,"params > 1");
3209
3210                 char dmodes[MAXBUF];
3211                 strncpy(dmodes,dest->modes,MAXBUF);
3212
3213                 strcpy(outpars,"+");
3214                 direction = 1;
3215
3216                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3217                         return;
3218
3219                 for (int i = 0; i < strlen(parameters[1]); i++)
3220                 {
3221                         if (parameters[1][i] == '+')
3222                         {
3223                                 if (direction != 1)
3224                                 {
3225                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3226                                         {
3227                                                 outpars[strlen(outpars)-1] = '+';
3228                                         }
3229                                         else
3230                                         {
3231                                                 strcat(outpars,"+");
3232                                         }
3233                                 }
3234                                 direction = 1;
3235                         }
3236                         else
3237                         if (parameters[1][i] == '-')
3238                         {
3239                                 if (direction != 0)
3240                                 {
3241                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3242                                         {
3243                                                 outpars[strlen(outpars)-1] = '-';
3244                                         }
3245                                         else
3246                                         {
3247                                                 strcat(outpars,"-");
3248                                         }
3249                                 }
3250                                 direction = 0;
3251                         }
3252                         else
3253                         {
3254                                 log(DEBUG,"begin mode processing entry");
3255                                 can_change = 1;
3256                                 if (can_change)
3257                                 {
3258                                         if (direction == 1)
3259                                         {
3260                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3261                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3262                                                 {
3263                                                         char umode = parameters[1][i];
3264                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3265                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3266                                                         {
3267                                                                 dmodes[strlen(dmodes)+1]='\0';
3268                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3269                                                                 outpars[strlen(outpars)+1]='\0';
3270                                                                 outpars[strlen(outpars)] = parameters[1][i];
3271                                                         }
3272                                                 }
3273                                         }
3274                                         else
3275                                         {
3276                                                 // can only remove a mode they already have
3277                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3278                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3279                                                 {
3280                                                         char umode = parameters[1][i];
3281                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3282                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3283                                                         {
3284                                                                 int q = 0;
3285                                                                 char temp[MAXBUF];
3286                                                                 char moo[MAXBUF];
3287
3288                                                                 outpars[strlen(outpars)+1]='\0';
3289                                                                 outpars[strlen(outpars)] = parameters[1][i];
3290
3291                                                                 strcpy(temp,"");
3292                                                                 for (q = 0; q < strlen(dmodes); q++)
3293                                                                 {
3294                                                                         if (dmodes[q] != parameters[1][i])
3295                                                                         {
3296                                                                                 moo[0] = dmodes[q];
3297                                                                                 moo[1] = '\0';
3298                                                                                 strcat(temp,moo);
3299                                                                         }
3300                                                                 }
3301                                                                 strcpy(dmodes,temp);
3302                                                         }
3303                                                 }
3304                                         }
3305                                 }
3306                         }
3307                 }
3308                 if (strlen(outpars))
3309                 {
3310                         char b[MAXBUF];
3311                         strcpy(b,"");
3312                         int z = 0;
3313                         int i = 0;
3314                         while (i < strlen (outpars))
3315                         {
3316                                 b[z++] = outpars[i++];
3317                                 b[z] = '\0';
3318                                 if (i<strlen(outpars)-1)
3319                                 {
3320                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3321                                         {
3322                                                 // someones playing silly buggers and trying
3323                                                 // to put a +- or -+ into the line...
3324                                                 i++;
3325                                         }
3326                                 }
3327                                 if (i == strlen(outpars)-1)
3328                                 {
3329                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3330                                         {
3331                                                 i++;
3332                                         }
3333                                 }
3334                         }
3335
3336                         z = strlen(b)-1;
3337                         if ((b[z] == '-') || (b[z] == '+'))
3338                                 b[z] == '\0';
3339
3340                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3341                                 return;
3342
3343                         if (strlen(dmodes)>MAXMODES)
3344                         {
3345                                 dmodes[MAXMODES-1] = '\0';
3346                         }
3347                         log(DEBUG,"Stripped mode line");
3348                         log(DEBUG,"Line dest is now %s",dmodes);
3349                         strncpy(dest->modes,dmodes,MAXMODES);
3350
3351                 }
3352
3353                 return;
3354         }
3355
3356         Ptr = FindChan(parameters[0]);
3357         if (Ptr)
3358         {
3359                 userrec s2;
3360                 strncpy(s2.nick,ServerName,NICKMAX);
3361                 strcpy(s2.modes,"o");
3362                 s2.fd = -1;
3363                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3364         }
3365 }
3366
3367
3368 void merge_mode2(char **parameters, int pcnt, userrec* user)
3369 {
3370         chanrec* Ptr;
3371         userrec* dest;
3372         int can_change,i;
3373         int direction = 1;
3374         char outpars[MAXBUF];
3375
3376         dest = Find(parameters[0]);
3377
3378         // fix: ChroNiCk found this - we cant use this as debug if its null!
3379         if (dest)
3380         {
3381                 log(DEBUG,"merge_mode on %s",dest->nick);
3382         }
3383
3384         if ((dest) && (pcnt > 1))
3385         {
3386                 log(DEBUG,"params > 1");
3387
3388                 char dmodes[MAXBUF];
3389                 strncpy(dmodes,dest->modes,MAXBUF);
3390
3391                 strcpy(outpars,"+");
3392                 direction = 1;
3393
3394                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3395                         return;
3396
3397                 for (int i = 0; i < strlen(parameters[1]); i++)
3398                 {
3399                         if (parameters[1][i] == '+')
3400                         {
3401                                 if (direction != 1)
3402                                 {
3403                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3404                                         {
3405                                                 outpars[strlen(outpars)-1] = '+';
3406                                         }
3407                                         else
3408                                         {
3409                                                 strcat(outpars,"+");
3410                                         }
3411                                 }
3412                                 direction = 1;
3413                         }
3414                         else
3415                         if (parameters[1][i] == '-')
3416                         {
3417                                 if (direction != 0)
3418                                 {
3419                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3420                                         {
3421                                                 outpars[strlen(outpars)-1] = '-';
3422                                         }
3423                                         else
3424                                         {
3425                                                 strcat(outpars,"-");
3426                                         }
3427                                 }
3428                                 direction = 0;
3429                         }
3430                         else
3431                         {
3432                                 log(DEBUG,"begin mode processing entry");
3433                                 can_change = 1;
3434                                 if (can_change)
3435                                 {
3436                                         if (direction == 1)
3437                                         {
3438                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3439                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3440                                                 {
3441                                                         char umode = parameters[1][i];
3442                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3443                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3444                                                         {
3445                                                                 dmodes[strlen(dmodes)+1]='\0';
3446                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3447                                                                 outpars[strlen(outpars)+1]='\0';
3448                                                                 outpars[strlen(outpars)] = parameters[1][i];
3449                                                         }
3450                                                 }
3451                                         }
3452                                         else
3453                                         {
3454                                                 // can only remove a mode they already have
3455                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3456                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3457                                                 {
3458                                                         char umode = parameters[1][i];
3459                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3460                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3461                                                         {
3462                                                                 int q = 0;
3463                                                                 char temp[MAXBUF];
3464                                                                 char moo[MAXBUF];
3465
3466                                                                 outpars[strlen(outpars)+1]='\0';
3467                                                                 outpars[strlen(outpars)] = parameters[1][i];
3468
3469                                                                 strcpy(temp,"");
3470                                                                 for (q = 0; q < strlen(dmodes); q++)
3471                                                                 {
3472                                                                         if (dmodes[q] != parameters[1][i])
3473                                                                         {
3474                                                                                 moo[0] = dmodes[q];
3475                                                                                 moo[1] = '\0';
3476                                                                                 strcat(temp,moo);
3477                                                                         }
3478                                                                 }
3479                                                                 strcpy(dmodes,temp);
3480                                                         }
3481                                                 }
3482                                         }
3483                                 }
3484                         }
3485                 }
3486                 if (strlen(outpars))
3487                 {
3488                         char b[MAXBUF];
3489                         strcpy(b,"");
3490                         int z = 0;
3491                         int i = 0;
3492                         while (i < strlen (outpars))
3493                         {
3494                                 b[z++] = outpars[i++];
3495                                 b[z] = '\0';
3496                                 if (i<strlen(outpars)-1)
3497                                 {
3498                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3499                                         {
3500                                                 // someones playing silly buggers and trying
3501                                                 // to put a +- or -+ into the line...
3502                                                 i++;
3503                                         }
3504                                 }
3505                                 if (i == strlen(outpars)-1)
3506                                 {
3507                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3508                                         {
3509                                                 i++;
3510                                         }
3511                                 }
3512                         }
3513
3514                         z = strlen(b)-1;
3515                         if ((b[z] == '-') || (b[z] == '+'))
3516                                 b[z] == '\0';
3517
3518                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3519                                 return;
3520
3521                         WriteTo(user,dest,"MODE :%s",b);
3522
3523                         if (strlen(dmodes)>MAXMODES)
3524                         {
3525                                 dmodes[MAXMODES-1] = '\0';
3526                         }
3527                         log(DEBUG,"Stripped mode line");
3528                         log(DEBUG,"Line dest is now %s",dmodes);
3529                         strncpy(dest->modes,dmodes,MAXMODES);
3530
3531                 }
3532
3533                 return;
3534         }
3535
3536         Ptr = FindChan(parameters[0]);
3537         if (Ptr)
3538         {
3539                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3540                 {
3541                         return;
3542                 }
3543
3544                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,true,true);
3545         }
3546 }
3547
3548
3549
3550 /* This function pokes and hacks at a parameter list like the following:
3551  *
3552  * PART #winbot, #darkgalaxy :m00!
3553  *
3554  * to turn it into a series of individual calls like this:
3555  *
3556  * PART #winbot :m00!
3557  * PART #darkgalaxy :m00!
3558  *
3559  * The seperate calls are sent to a callback function provided by the caller
3560  * (the caller will usually call itself recursively). The callback function
3561  * must be a command handler. Calling this function on a line with no list causes
3562  * no action to be taken. You must provide a starting and ending parameter number
3563  * where the range of the list can be found, useful if you have a terminating
3564  * parameter as above which is actually not part of the list, or parameters
3565  * before the actual list as well. This code is used by many functions which
3566  * can function as "one to list" (see the RFC) */
3567
3568 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3569 {
3570         char plist[MAXBUF];
3571         char *param;
3572         char *pars[32];
3573         char blog[32][MAXBUF];
3574         char blog2[32][MAXBUF];
3575         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3576         char keystr[MAXBUF];
3577         char moo[MAXBUF];
3578
3579         for (int i = 0; i <32; i++)
3580                 strcpy(blog[i],"");
3581
3582         for (int i = 0; i <32; i++)
3583                 strcpy(blog2[i],"");
3584
3585         strcpy(moo,"");
3586         for (int i = 0; i <10; i++)
3587         {
3588                 if (!parameters[i])
3589                 {
3590                         parameters[i] = moo;
3591                 }
3592         }
3593         if (joins)
3594         {
3595                 if (pcnt > 1) /* we have a key to copy */
3596                 {
3597                         strcpy(keystr,parameters[1]);
3598                 }
3599         }
3600
3601         if (!parameters[start])
3602         {
3603                 return 0;
3604         }
3605         if (!strchr(parameters[start],','))
3606         {
3607                 return 0;
3608         }
3609         strcpy(plist,"");
3610         for (int i = start; i <= end; i++)
3611         {
3612                 if (parameters[i])
3613                 {
3614                         strcat(plist,parameters[i]);
3615                 }
3616         }
3617
3618         j = 0;
3619         param = plist;
3620
3621         t = strlen(plist);
3622         for (int i = 0; i < t; i++)
3623         {
3624                 if (plist[i] == ',')
3625                 {
3626                         plist[i] = '\0';
3627                         strcpy(blog[j++],param);
3628                         param = plist+i+1;
3629                         if (j>20)
3630                         {
3631                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3632                                 return 1;
3633                         }
3634                 }
3635         }
3636         strcpy(blog[j++],param);
3637         total = j;
3638
3639         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3640         {
3641                 strcat(keystr,",");
3642         }
3643
3644         if ((joins) && (keystr))
3645         {
3646                 if (strchr(keystr,','))
3647                 {
3648                         j = 0;
3649                         param = keystr;
3650                         t2 = strlen(keystr);
3651                         for (int i = 0; i < t2; i++)
3652                         {
3653                                 if (keystr[i] == ',')
3654                                 {
3655                                         keystr[i] = '\0';
3656                                         strcpy(blog2[j++],param);
3657                                         param = keystr+i+1;
3658                                 }
3659                         }
3660                         strcpy(blog2[j++],param);
3661                         total2 = j;
3662                 }
3663         }
3664
3665         for (j = 0; j < total; j++)
3666         {
3667                 if (blog[j])
3668                 {
3669                         pars[0] = blog[j];
3670                 }
3671                 for (q = end; q < pcnt-1; q++)
3672                 {
3673                         if (parameters[q+1])
3674                         {
3675                                 pars[q-end+1] = parameters[q+1];
3676                         }
3677                 }
3678                 if ((joins) && (parameters[1]))
3679                 {
3680                         if (pcnt > 1)
3681                         {
3682                                 pars[1] = blog2[j];
3683                         }
3684                         else
3685                         {
3686                                 pars[1] = NULL;
3687                         }
3688                 }
3689                 /* repeatedly call the function with the hacked parameter list */
3690                 if ((joins) && (pcnt > 1))
3691                 {
3692                         if (pars[1])
3693                         {
3694                                 // pars[1] already set up and containing key from blog2[j]
3695                                 fn(pars,2,u);
3696                         }
3697                         else
3698                         {
3699                                 pars[1] = parameters[1];
3700                                 fn(pars,2,u);
3701                         }
3702                 }
3703                 else
3704                 {
3705                         fn(pars,pcnt-(end-start),u);
3706                 }
3707         }
3708
3709         return 1;
3710 }
3711
3712
3713 void handle_join(char **parameters, int pcnt, userrec *user)
3714 {
3715         chanrec* Ptr;
3716         int i = 0;
3717
3718         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3719                 return;
3720         if (parameters[0][0] == '#')
3721         {
3722                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3723         }
3724 }
3725
3726
3727 void handle_part(char **parameters, int pcnt, userrec *user)
3728 {
3729         chanrec* Ptr;
3730
3731         if (pcnt > 1)
3732         {
3733                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3734                         return;
3735                 del_channel(user,parameters[0],parameters[1],false);
3736         }
3737         else
3738         {
3739                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3740                         return;
3741                 del_channel(user,parameters[0],NULL,false);
3742         }
3743 }
3744
3745 void handle_kick(char **parameters, int pcnt, userrec *user)
3746 {
3747         chanrec* Ptr = FindChan(parameters[0]);
3748         userrec* u   = Find(parameters[1]);
3749
3750         if ((!u) || (!Ptr))
3751         {
3752                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3753                 return;
3754         }
3755
3756         if (!has_channel(u,Ptr))
3757         {
3758                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3759                 return;
3760         }
3761
3762         if (pcnt > 2)
3763         {
3764                 char reason[MAXBUF];
3765                 strncpy(reason,parameters[2],MAXBUF);
3766                 if (strlen(reason)>MAXKICK)
3767                 {
3768                         reason[MAXKICK-1] = '\0';
3769                 }
3770
3771                 kick_channel(user,u,Ptr,reason);
3772         }
3773         else
3774         {
3775                 kick_channel(user,u,Ptr,user->nick);
3776         }
3777 }
3778
3779
3780 void handle_die(char **parameters, int pcnt, userrec *user)
3781 {
3782         log(DEBUG,"die: %s",user->nick);
3783         if (!strcmp(parameters[0],diepass))
3784         {
3785                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3786                 sleep(DieDelay);
3787                 Exit(ERROR);
3788         }
3789         else
3790         {
3791                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3792         }
3793 }
3794
3795 void handle_restart(char **parameters, int pcnt, userrec *user)
3796 {
3797         log(DEBUG,"restart: %s",user->nick);
3798         if (!strcmp(parameters[0],restartpass))
3799         {
3800                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3801                 sleep(DieDelay);
3802                 Exit(ERROR);
3803                 /* Will finish this later when i can be arsed :) */
3804         }
3805         else
3806         {
3807                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3808         }
3809 }
3810
3811
3812 void kill_link(userrec *user,const char* r)
3813 {
3814         user_hash::iterator iter = clientlist.find(user->nick);
3815
3816         char reason[MAXBUF];
3817
3818         strncpy(reason,r,MAXBUF);
3819
3820         if (strlen(reason)>MAXQUIT)
3821         {
3822                 reason[MAXQUIT-1] = '\0';
3823         }
3824
3825         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3826         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3827         log(DEBUG,"closing fd %d",user->fd);
3828
3829         /* bugfix, cant close() a nonblocking socket (sux!) */
3830         if (user->registered == 7) {
3831                 FOREACH_MOD OnUserQuit(user);
3832                 WriteCommonExcept(user,"QUIT :%s",reason);
3833
3834                 // Q token must go to ALL servers!!!
3835                 char buffer[MAXBUF];
3836                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3837                 for (int j = 0; j < 255; j++)
3838                 {
3839                         if (servers[j] != NULL)
3840                         {
3841                                 if (strcmp(servers[j]->name,ServerName))
3842                                 {
3843                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3844                                         log(DEBUG,"Sent Q token");
3845                                 }
3846                         }
3847                 }
3848         }
3849
3850         /* push the socket on a stack of sockets due to be closed at the next opportunity
3851          * 'Client exited' is an exception to this as it means the client side has already
3852          * closed the socket, we don't need to do it.
3853          */
3854         fd_reap.push_back(user->fd);
3855
3856         bool do_purge = false;
3857
3858         if (user->registered == 7) {
3859                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3860                 AddWhoWas(user);
3861         }
3862
3863         if (iter != clientlist.end())
3864         {
3865                 log(DEBUG,"deleting user hash value %d",iter->second);
3866                 if ((iter->second) && (user->registered == 7)) {
3867                         delete iter->second;
3868                 }
3869                 clientlist.erase(iter);
3870         }
3871
3872         if (user->registered == 7) {
3873                 purge_empty_chans();
3874         }
3875 }
3876
3877
3878 void handle_kill(char **parameters, int pcnt, userrec *user)
3879 {
3880         userrec *u = Find(parameters[0]);
3881         char killreason[MAXBUF];
3882
3883         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3884         if (u)
3885         {
3886                 WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3887                 // :Brain!brain@NetAdmin.chatspike.net KILL [Brain] :homer!NetAdmin.chatspike.net!Brain (test kill)
3888                 WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3889                 sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3890                 kill_link(u,killreason);
3891         }
3892         else
3893         {
3894                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3895         }
3896 }
3897
3898 void handle_summon(char **parameters, int pcnt, userrec *user)
3899 {
3900         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3901 }
3902
3903 void handle_users(char **parameters, int pcnt, userrec *user)
3904 {
3905         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3906 }
3907
3908
3909 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3910
3911 char* Passwd(userrec *user)
3912 {
3913         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3914         {
3915                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3916                 {
3917                         return i->pass;
3918                 }
3919         }
3920         return "";
3921 }
3922
3923 bool IsDenied(userrec *user)
3924 {
3925         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3926         {
3927                 if (match(user->host,i->host) && (i->type == CC_DENY))
3928                 {
3929                         return true;
3930                 }
3931         }
3932         return false;
3933 }
3934
3935
3936
3937 void handle_pass(char **parameters, int pcnt, userrec *user)
3938 {
3939         // Check to make sure they havnt registered -- Fix by FCS
3940         if (user->registered == 7)
3941         {
3942                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
3943                 return;
3944         }
3945         if (!strcasecmp(parameters[0],Passwd(user)))
3946         {
3947                 user->haspassed = true;
3948         }
3949 }
3950
3951 void handle_invite(char **parameters, int pcnt, userrec *user)
3952 {
3953         userrec* u = Find(parameters[0]);
3954         chanrec* c = FindChan(parameters[1]);
3955
3956         if ((!c) || (!u))
3957         {
3958                 if (!c)
3959                 {
3960                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3961                 }
3962                 else
3963                 {
3964                         if (c->inviteonly)
3965                         {
3966                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
3967                         }
3968                 }
3969
3970                 return;
3971         }
3972
3973         if (c->inviteonly)
3974         {
3975                 if (cstatus(user,c) < STATUS_HOP)
3976                 {
3977                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
3978                         return;
3979                 }
3980         }
3981         if (has_channel(u,c))
3982         {
3983                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
3984                 return;
3985         }
3986         if (!has_channel(user,c))
3987         {
3988                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
3989                 return;
3990         }
3991         u->InviteTo(c->name);
3992         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
3993         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
3994 }
3995
3996 void handle_topic(char **parameters, int pcnt, userrec *user)
3997 {
3998         chanrec* Ptr;
3999
4000         if (pcnt == 1)
4001         {
4002                 if (strlen(parameters[0]) <= CHANMAX)
4003                 {
4004                         Ptr = FindChan(parameters[0]);
4005                         if (Ptr)
4006                         {
4007                                 if (Ptr->topicset)
4008                                 {
4009                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4010                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4011                                 }
4012                                 else
4013                                 {
4014                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4015                                 }
4016                         }
4017                         else
4018                         {
4019                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4020                         }
4021                 }
4022                 return;
4023         }
4024         else if (pcnt>1)
4025         {
4026                 if (strlen(parameters[0]) <= CHANMAX)
4027                 {
4028                         Ptr = FindChan(parameters[0]);
4029                         if (Ptr)
4030                         {
4031                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4032                                 {
4033                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4034                                         return;
4035                                 }
4036
4037                                 char topic[MAXBUF];
4038                                 strncpy(topic,parameters[1],MAXBUF);
4039                                 if (strlen(topic)>MAXTOPIC)
4040                                 {
4041                                         topic[MAXTOPIC-1] = '\0';
4042                                 }
4043
4044                                 strcpy(Ptr->topic,topic);
4045                                 strcpy(Ptr->setby,user->nick);
4046                                 Ptr->topicset = time(NULL);
4047                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4048                         }
4049                         else
4050                         {
4051                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4052                         }
4053                 }
4054         }
4055 }
4056
4057 /* sends out an error notice to all connected clients (not to be used
4058  * lightly!) */
4059
4060 void send_error(char *s)
4061 {
4062         log(DEBUG,"send_error: %s",s);
4063         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4064         {
4065                 if (isnick(i->second->nick))
4066                 {
4067                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4068                 }
4069                 else
4070                 {
4071                         // fix - unregistered connections receive ERROR, not NOTICE
4072                         Write(i->second->fd,"ERROR :%s",s);
4073                 }
4074         }
4075 }
4076
4077 void Error(int status)
4078 {
4079         signal (SIGALRM, SIG_IGN);
4080         signal (SIGPIPE, SIG_IGN);
4081         signal (SIGTERM, SIG_IGN);
4082         signal (SIGABRT, SIG_IGN);
4083         signal (SIGSEGV, SIG_IGN);
4084         signal (SIGURG, SIG_IGN);
4085         signal (SIGKILL, SIG_IGN);
4086         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4087         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4088         exit(status);
4089 }
4090
4091
4092 int main (int argc, char *argv[])
4093 {
4094         Start();
4095         log(DEBUG,"*** InspIRCd starting up!");
4096         if (!FileExists(CONFIG_FILE))
4097         {
4098                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4099                 log(DEBUG,"main: no config");
4100                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4101                 Exit(ERROR);
4102         }
4103         if (argc > 1) {
4104                 if (!strcmp(argv[1],"-nofork")) {
4105                         nofork = true;
4106                 }
4107         }
4108         if (InspIRCd() == ERROR)
4109         {
4110                 log(DEBUG,"main: daemon function bailed");
4111                 printf("ERROR: could not initialise. Shutting down.\n");
4112                 Exit(ERROR);
4113         }
4114         Exit(TRUE);
4115         return 0;
4116 }
4117
4118 template<typename T> inline string ConvToStr(const T &in)
4119 {
4120         stringstream tmp;
4121         if (!(tmp << in)) return string();
4122         return tmp.str();
4123 }
4124
4125 /* re-allocates a nick in the user_hash after they change nicknames,
4126  * returns a pointer to the new user as it may have moved */
4127
4128 userrec* ReHashNick(char* Old, char* New)
4129 {
4130         user_hash::iterator newnick;
4131         user_hash::iterator oldnick = clientlist.find(Old);
4132
4133         log(DEBUG,"ReHashNick: %s %s",Old,New);
4134
4135         if (!strcasecmp(Old,New))
4136         {
4137                 log(DEBUG,"old nick is new nick, skipping");
4138                 return oldnick->second;
4139         }
4140
4141         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4142
4143         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4144
4145         clientlist[New] = new userrec();
4146         clientlist[New] = oldnick->second;
4147         /*delete oldnick->second; */
4148         clientlist.erase(oldnick);
4149
4150         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4151
4152         return clientlist[New];
4153 }
4154
4155 /* adds or updates an entry in the whowas list */
4156 void AddWhoWas(userrec* u)
4157 {
4158         user_hash::iterator iter = whowas.find(u->nick);
4159         userrec *a = new userrec();
4160         strcpy(a->nick,u->nick);
4161         strcpy(a->ident,u->ident);
4162         strcpy(a->dhost,u->dhost);
4163         strcpy(a->host,u->host);
4164         strcpy(a->fullname,u->fullname);
4165         strcpy(a->server,u->server);
4166         a->signon = u->signon;
4167
4168         /* MAX_WHOWAS:   max number of /WHOWAS items
4169          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4170          *               can be replaced by a newer one
4171          */
4172
4173         if (iter == whowas.end())
4174         {
4175                 if (whowas.size() == WHOWAS_MAX)
4176                 {
4177                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4178                         {
4179                                 // 3600 seconds in an hour ;)
4180                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4181                                 {
4182                                         delete i->second;
4183                                         i->second = a;
4184                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4185                                         return;
4186                                 }
4187                         }
4188                 }
4189                 else
4190                 {
4191                         log(DEBUG,"added fresh WHOWAS entry");
4192                         whowas[a->nick] = a;
4193                 }
4194         }
4195         else
4196         {
4197                 log(DEBUG,"updated WHOWAS entry");
4198                 delete iter->second;
4199                 iter->second = a;
4200         }
4201 }
4202
4203
4204 /* add a client connection to the sockets list */
4205 void AddClient(int socket, char* host, int port, bool iscached)
4206 {
4207         int i;
4208         int blocking = 1;
4209         char resolved[MAXBUF];
4210         string tempnick;
4211         char tn2[MAXBUF];
4212         user_hash::iterator iter;
4213
4214         tempnick = ConvToStr(socket) + "-unknown";
4215         sprintf(tn2,"%d-unknown",socket);
4216
4217         iter = clientlist.find(tempnick);
4218
4219         if (iter != clientlist.end()) return;
4220
4221         /*
4222          * It is OK to access the value here this way since we know
4223          * it exists, we just created it above.
4224          *
4225          * At NO other time should you access a value in a map or a
4226          * hash_map this way.
4227          */
4228         clientlist[tempnick] = new userrec();
4229
4230         NonBlocking(socket);
4231         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4232
4233         clientlist[tempnick]->fd = socket;
4234         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4235         strncpy(clientlist[tempnick]->host, host,160);
4236         strncpy(clientlist[tempnick]->dhost, host,160);
4237         strncpy(clientlist[tempnick]->server, ServerName,256);
4238         strncpy(clientlist[tempnick]->ident, "unknown",9);
4239         clientlist[tempnick]->registered = 0;
4240         clientlist[tempnick]->signon = time(NULL);
4241         clientlist[tempnick]->nping = time(NULL)+240;
4242         clientlist[tempnick]->lastping = 1;
4243         clientlist[tempnick]->port = port;
4244
4245         if (iscached)
4246         {
4247                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4248         }
4249         else
4250         {
4251                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4252         }
4253
4254         // set the registration timeout for this user
4255         unsigned long class_regtimeout = 90;
4256         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4257         {
4258                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4259                 {
4260                         class_regtimeout = (unsigned long)i->registration_timeout;
4261                         break;
4262                 }
4263         }
4264
4265         int class_flood = 0;
4266         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4267         {
4268                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4269                 {
4270                         class_flood = i->flood;
4271                         break;
4272                 }
4273         }
4274
4275         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4276         clientlist[tempnick]->flood = class_flood;
4277
4278         for (int i = 0; i < MAXCHANS; i++)
4279         {
4280                 clientlist[tempnick]->chans[i].channel = NULL;
4281                 clientlist[tempnick]->chans[i].uc_modes = 0;
4282         }
4283
4284         if (clientlist.size() == MAXCLIENTS)
4285                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4286 }
4287
4288 void handle_names(char **parameters, int pcnt, userrec *user)
4289 {
4290         chanrec* c;
4291
4292         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4293                 return;
4294         c = FindChan(parameters[0]);
4295         if (c)
4296         {
4297                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4298                 userlist(user,c);
4299                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4300         }
4301         else
4302         {
4303                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4304         }
4305 }
4306
4307 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4308 {
4309         userrec *dest;
4310         chanrec *chan;
4311
4312         user->idle_lastmsg = time(NULL);
4313
4314         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4315                 return;
4316         if (parameters[0][0] == '#')
4317         {
4318                 chan = FindChan(parameters[0]);
4319                 if (chan)
4320                 {
4321                         if ((chan->noexternal) && (!has_channel(user,chan)))
4322                         {
4323                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4324                                 return;
4325                         }
4326                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4327                         {
4328                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4329                                 return;
4330                         }
4331
4332                         int MOD_RESULT = 0;
4333
4334                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4335                         if (MOD_RESULT) {
4336                                 return;
4337                         }
4338
4339                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4340
4341                         // if any users of this channel are on remote servers, broadcast the packet
4342                         char buffer[MAXBUF];
4343                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4344                         for (int j = 0; j < 255; j++)
4345                         {
4346                                 if (servers[j] != NULL)
4347                                 {
4348                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4349                                         {
4350                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4351                                         }
4352                                 }
4353                         }
4354                 }
4355                 else
4356                 {
4357                         /* no such nick/channel */
4358                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4359                 }
4360                 return;
4361         }
4362
4363         dest = Find(parameters[0]);
4364         if (dest)
4365         {
4366                 if (strcmp(dest->awaymsg,""))
4367                 {
4368                         /* auto respond with aweh msg */
4369                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4370                 }
4371
4372                 int MOD_RESULT = 0;
4373
4374                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4375                 if (MOD_RESULT) {
4376                         return;
4377                 }
4378
4379
4380
4381                 if (!strcmp(dest->server,user->server))
4382                 {
4383                         // direct write, same server
4384                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4385                 }
4386                 else
4387                 {
4388                         for (int j = 0; j < 255; j++)
4389                         {
4390                                 if (servers[j] != NULL)
4391                                 {
4392                                         if (!strcasecmp(servers[j]->name,dest->server))
4393                                         {
4394                                                 // direct write, same server
4395                                                 char buffer[MAXBUF];
4396                                                 snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4397                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4398                                         }
4399                                 }
4400                         }
4401                 }
4402         }
4403         else
4404         {
4405                 /* no such nick/channel */
4406                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4407         }
4408 }
4409
4410 void handle_notice(char **parameters, int pcnt, userrec *user)
4411 {
4412         userrec *dest;
4413         chanrec *chan;
4414
4415         user->idle_lastmsg = time(NULL);
4416
4417         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4418                 return;
4419         if (parameters[0][0] == '#')
4420         {
4421                 chan = FindChan(parameters[0]);
4422                 if (chan)
4423                 {
4424                         if ((chan->noexternal) && (!has_channel(user,chan)))
4425                         {
4426                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4427                                 return;
4428                         }
4429                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4430                         {
4431                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4432                                 return;
4433                         }
4434
4435                         int MOD_RESULT = 0;
4436
4437                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4438                         if (MOD_RESULT) {
4439                                 return;
4440                         }
4441
4442                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4443
4444                         // if any users of this channel are on remote servers, broadcast the packet
4445                         char buffer[MAXBUF];
4446                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4447                         for (int j = 0; j < 255; j++)
4448                         {
4449                                 if (servers[j] != NULL)
4450                                 {
4451                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4452                                         {
4453                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4454                                         }
4455                                 }
4456                         }
4457                 }
4458                 else
4459                 {
4460                         /* no such nick/channel */
4461                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4462                 }
4463                 return;
4464         }
4465
4466         dest = Find(parameters[0]);
4467         if (dest)
4468         {
4469                 int MOD_RESULT = 0;
4470
4471                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4472                 if (MOD_RESULT) {
4473                         return;
4474                 }
4475
4476                 if (!strcmp(dest->server,user->server))
4477                 {
4478                         // direct write, same server
4479                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4480                 }
4481                 else
4482                 {
4483                         for (int j = 0; j < 255; j++)
4484                         {
4485                                 if (servers[j] != NULL)
4486                                 {
4487                                         if (!strcasecmp(servers[j]->name,dest->server))
4488                                         {
4489                                                 // direct write, same server
4490                                                 char buffer[MAXBUF];
4491                                                 snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4492                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4493                                         }
4494                                 }
4495                         }
4496                 }
4497         }
4498         else
4499         {
4500                 /* no such nick/channel */
4501                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4502         }
4503 }
4504
4505 char lst[MAXBUF];
4506
4507 char* chlist(userrec *user)
4508 {
4509         int i = 0;
4510         char cmp[MAXBUF];
4511
4512         log(DEBUG,"chlist: %s",user->nick);
4513         strcpy(lst,"");
4514         if (!user)
4515         {
4516                 return lst;
4517         }
4518         for (int i = 0; i != MAXCHANS; i++)
4519         {
4520                 if (user->chans[i].channel != NULL)
4521                 {
4522                         if (user->chans[i].channel->name)
4523                         {
4524                                 strcpy(cmp,user->chans[i].channel->name);
4525                                 strcat(cmp," ");
4526                                 if (!strstr(lst,cmp))
4527                                 {
4528                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4529                                         {
4530                                                 strcat(lst,cmode(user,user->chans[i].channel));
4531                                                 strcat(lst,user->chans[i].channel->name);
4532                                                 strcat(lst," ");
4533                                         }
4534                                 }
4535                         }
4536                 }
4537         }
4538         if (strlen(lst))
4539         {
4540                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4541         }
4542         return lst;
4543 }
4544
4545 void handle_info(char **parameters, int pcnt, userrec *user)
4546 {
4547         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4548         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4549         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4550         FOREACH_MOD OnInfo(user);
4551         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4552 }
4553
4554 void handle_time(char **parameters, int pcnt, userrec *user)
4555 {
4556         time_t rawtime;
4557         struct tm * timeinfo;
4558
4559         time ( &rawtime );
4560         timeinfo = localtime ( &rawtime );
4561         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4562
4563 }
4564
4565 void handle_whois(char **parameters, int pcnt, userrec *user)
4566 {
4567         userrec *dest;
4568         char *t;
4569
4570         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4571                 return;
4572         dest = Find(parameters[0]);
4573         if (dest)
4574         {
4575                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4576                 if (dest->registered == 7)
4577                 {
4578                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4579                         if ((user == dest) || (strchr(user->modes,'o')))
4580                         {
4581                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4582                         }
4583                         if (strcmp(chlist(dest),""))
4584                         {
4585                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4586                         }
4587                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4588                         if (strcmp(dest->awaymsg,""))
4589                         {
4590                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4591                         }
4592                         if (strchr(dest->modes,'o'))
4593                         {
4594                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4595                         }
4596                         FOREACH_MOD OnWhois(user,dest);
4597                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4598                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4599
4600                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4601                 }
4602                 else
4603                 {
4604                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4605                 }
4606         }
4607         else
4608         {
4609                 /* no such nick/channel */
4610                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4611         }
4612 }
4613
4614 void handle_quit(char **parameters, int pcnt, userrec *user)
4615 {
4616         user_hash::iterator iter = clientlist.find(user->nick);
4617         char* reason;
4618
4619         if (user->registered == 7)
4620         {
4621                 /* theres more to do here, but for now just close the socket */
4622                 if (pcnt == 1)
4623                 {
4624                         if (parameters[0][0] == ':')
4625                         {
4626                                 *parameters[0]++;
4627                         }
4628                         reason = parameters[0];
4629
4630                         if (strlen(reason)>MAXQUIT)
4631                         {
4632                                 reason[MAXQUIT-1] = '\0';
4633                         }
4634
4635                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4636                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4637                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4638
4639                         char buffer[MAXBUF];
4640                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4641                         for (int j = 0; j < 255; j++)
4642                         {
4643                                 if (servers[j] != NULL)
4644                                 {
4645                                         if (CommonOnThisServer(user,servers[j]->name))
4646                                         {
4647                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4648                                                 log(DEBUG,"Sent Q token");
4649                                         }
4650                                         }
4651                         }
4652                 }
4653                 else
4654                 {
4655                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4656                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4657                         WriteCommonExcept(user,"QUIT :Client exited");
4658
4659                         char buffer[MAXBUF];
4660                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4661                         for (int j = 0; j < 255; j++)
4662                         {
4663                                 if (servers[j] != NULL)
4664                                 {
4665                                         if (CommonOnThisServer(user,servers[j]->name))
4666                                         {
4667                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4668                                                 log(DEBUG,"Sent Q token");
4669                                         }
4670                                         }
4671                         }
4672                 }
4673                 FOREACH_MOD OnUserQuit(user);
4674                 AddWhoWas(user);
4675         }
4676
4677         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4678         fd_reap.push_back(user->fd);
4679
4680         if (iter != clientlist.end())
4681         {
4682                 clientlist.erase(iter);
4683                 log(DEBUG,"deleting user hash value %d",iter->second);
4684                 //if ((user) && (user->registered == 7)) {
4685                         //delete user;
4686                 //}
4687         }
4688
4689         if (user->registered == 7) {
4690                 purge_empty_chans();
4691         }
4692 }
4693
4694 void handle_who(char **parameters, int pcnt, userrec *user)
4695 {
4696         chanrec* Ptr = NULL;
4697
4698         /* theres more to do here, but for now just close the socket */
4699         if (pcnt == 1)
4700         {
4701                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4702                 {
4703                         if (user->chans[0].channel)
4704                         {
4705                                 Ptr = user->chans[0].channel;
4706                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4707                                 {
4708                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4709                                         {
4710                                                 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);
4711                                         }
4712                                 }
4713                         }
4714                         if (Ptr)
4715                         {
4716                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4717                         }
4718                         else
4719                         {
4720                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4721                         }
4722                         return;
4723                 }
4724                 if (parameters[0][0] == '#')
4725                 {
4726                         Ptr = FindChan(parameters[0]);
4727                         if (Ptr)
4728                         {
4729                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4730                                 {
4731                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4732                                         {
4733                                                 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);
4734                                         }
4735                                 }
4736                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4737                         }
4738                         else
4739                         {
4740                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4741                         }
4742                 }
4743                 else
4744                 {
4745                         userrec* u = Find(parameters[0]);
4746                         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);
4747                 }
4748         }
4749         if (pcnt == 2)
4750         {
4751                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4752                 {
4753                         Ptr = user->chans[0].channel;
4754                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4755                         {
4756                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4757                                 {
4758                                         if (strchr(i->second->modes,'o'))
4759                                         {
4760                                                 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);
4761                                         }
4762                                 }
4763                         }
4764                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4765                         return;
4766                 }
4767         }
4768 }
4769
4770 void handle_wallops(char **parameters, int pcnt, userrec *user)
4771 {
4772         WriteWallOps(user,"%s",parameters[0]);
4773 }
4774
4775 void handle_list(char **parameters, int pcnt, userrec *user)
4776 {
4777         chanrec* Ptr;
4778
4779         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4780         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4781         {
4782                 if ((!i->second->c_private) && (!i->second->secret))
4783                 {
4784                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4785                 }
4786         }
4787         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4788 }
4789
4790
4791 void handle_rehash(char **parameters, int pcnt, userrec *user)
4792 {
4793         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4794         ReadConfig();
4795         FOREACH_MOD OnRehash();
4796         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4797 }
4798
4799
4800 int usercnt(void)
4801 {
4802         return clientlist.size();
4803 }
4804
4805
4806 int usercount_invisible(void)
4807 {
4808         int c = 0;
4809
4810         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4811         {
4812                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4813         }
4814         return c;
4815 }
4816
4817 int usercount_opers(void)
4818 {
4819         int c = 0;
4820
4821         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4822         {
4823                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4824         }
4825         return c;
4826 }
4827
4828 int usercount_unknown(void)
4829 {
4830         int c = 0;
4831
4832         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4833         {
4834                 if ((i->second->fd) && (i->second->registered != 7))
4835                         c++;
4836         }
4837         return c;
4838 }
4839
4840 int chancount(void)
4841 {
4842         return chanlist.size();
4843 }
4844
4845 int servercount(void)
4846 {
4847         return 1;
4848 }
4849
4850 void handle_lusers(char **parameters, int pcnt, userrec *user)
4851 {
4852         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4853         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4854         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4855         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4856         WriteServ(user->fd,"254 %s :I have %d clients and 0 servers",user->nick,usercnt());
4857 }
4858
4859 void handle_admin(char **parameters, int pcnt, userrec *user)
4860 {
4861         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4862         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4863         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4864         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4865 }
4866
4867 void ShowMOTD(userrec *user)
4868 {
4869         if (!MOTD.size())
4870         {
4871                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4872                 return;
4873         }
4874         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4875         for (int i = 0; i != MOTD.size(); i++)
4876         {
4877                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4878         }
4879         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4880 }
4881
4882 void ShowRULES(userrec *user)
4883 {
4884         if (!RULES.size())
4885         {
4886                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4887                 return;
4888         }
4889         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4890         for (int i = 0; i != RULES.size(); i++)
4891         {
4892                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4893         }
4894         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4895 }
4896
4897 /* shows the message of the day, and any other on-logon stuff */
4898 void ConnectUser(userrec *user)
4899 {
4900         user->registered = 7;
4901         user->idle_lastmsg = time(NULL);
4902         log(DEBUG,"ConnectUser: %s",user->nick);
4903
4904         if (strcmp(Passwd(user),"") && (!user->haspassed))
4905         {
4906                 kill_link(user,"Invalid password");
4907                 return;
4908         }
4909         if (IsDenied(user))
4910         {
4911                 kill_link(user,"Unauthorised connection");
4912                 return;
4913         }
4914
4915         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
4916         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
4917         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
4918         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
4919         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
4920         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);
4921         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);
4922         ShowMOTD(user);
4923         FOREACH_MOD OnUserConnect(user);
4924         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
4925
4926         char buffer[MAXBUF];
4927         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);
4928         for (int j = 0; j < 255; j++)
4929         {
4930                 if (servers[j] != NULL)
4931                 {
4932                         if (strcmp(servers[j]->name,ServerName))
4933                         {
4934                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4935                                 log(DEBUG,"Sent N token");
4936                         }
4937                 }
4938         }
4939
4940 }
4941
4942 void handle_version(char **parameters, int pcnt, userrec *user)
4943 {
4944         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
4945 }
4946
4947 void handle_ping(char **parameters, int pcnt, userrec *user)
4948 {
4949         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
4950 }
4951
4952 void handle_pong(char **parameters, int pcnt, userrec *user)
4953 {
4954         // set the user as alive so they survive to next ping
4955         user->lastping = 1;
4956 }
4957
4958 void handle_motd(char **parameters, int pcnt, userrec *user)
4959 {
4960         ShowMOTD(user);
4961 }
4962
4963 void handle_rules(char **parameters, int pcnt, userrec *user)
4964 {
4965         ShowRULES(user);
4966 }
4967
4968 void handle_user(char **parameters, int pcnt, userrec *user)
4969 {
4970         if (user->registered < 3)
4971         {
4972                 if (isident(parameters[0]) == 0) {
4973                         // This kinda Sucks, According to the RFC thou, its either this,
4974                         // or "You have already registered" :p -- Craig
4975                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
4976                 }
4977                 else {
4978                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
4979                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
4980                         strncat(user->ident,parameters[0],IDENTMAX);
4981                         strncpy(user->fullname,parameters[3],128);
4982                         user->registered = (user->registered | 1);
4983                 }
4984         }
4985         else
4986         {
4987                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4988                 return;
4989         }
4990         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
4991         if (user->registered == 3)
4992         {
4993                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
4994                 ConnectUser(user);
4995         }
4996 }
4997
4998 void handle_userhost(char **parameters, int pcnt, userrec *user)
4999 {
5000         char Return[MAXBUF],junk[MAXBUF];
5001         sprintf(Return,"302 %s :",user->nick);
5002         for (int i = 0; i < pcnt; i++)
5003         {
5004                 userrec *u = Find(parameters[i]);
5005                 if (u)
5006                 {
5007                         if (strchr(u->modes,'o'))
5008                         {
5009                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5010                                 strcat(Return,junk);
5011                         }
5012                         else
5013                         {
5014                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5015                                 strcat(Return,junk);
5016                         }
5017                 }
5018         }
5019         WriteServ(user->fd,Return);
5020 }
5021
5022
5023 void handle_ison(char **parameters, int pcnt, userrec *user)
5024 {
5025         char Return[MAXBUF];
5026         sprintf(Return,"303 %s :",user->nick);
5027         for (int i = 0; i < pcnt; i++)
5028         {
5029                 userrec *u = Find(parameters[i]);
5030                 if (u)
5031                 {
5032                         strcat(Return,u->nick);
5033                         strcat(Return," ");
5034                 }
5035         }
5036         WriteServ(user->fd,Return);
5037 }
5038
5039
5040 void handle_away(char **parameters, int pcnt, userrec *user)
5041 {
5042         if (pcnt)
5043         {
5044                 strcpy(user->awaymsg,parameters[0]);
5045                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5046         }
5047         else
5048         {
5049                 strcpy(user->awaymsg,"");
5050                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5051         }
5052 }
5053
5054 void handle_whowas(char **parameters, int pcnt, userrec* user)
5055 {
5056         user_hash::iterator i = whowas.find(parameters[0]);
5057
5058         if (i == whowas.end())
5059         {
5060                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5061                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5062         }
5063         else
5064         {
5065                 time_t rawtime = i->second->signon;
5066                 tm *timeinfo;
5067                 char b[MAXBUF];
5068
5069                 timeinfo = localtime(&rawtime);
5070                 strcpy(b,asctime(timeinfo));
5071                 b[strlen(b)-1] = '\0';
5072
5073                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5074                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5075                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5076         }
5077
5078 }
5079
5080 void handle_trace(char **parameters, int pcnt, userrec *user)
5081 {
5082         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5083         {
5084                 if (i->second)
5085                 {
5086                         if (isnick(i->second->nick))
5087                         {
5088                                 if (strchr(i->second->modes,'o'))
5089                                 {
5090                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5091                                 }
5092                                 else
5093                                 {
5094                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5095                                 }
5096                         }
5097                         else
5098                         {
5099                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5100                         }
5101                 }
5102         }
5103 }
5104
5105 void handle_modules(char **parameters, int pcnt, userrec *user)
5106 {
5107         for (int i = 0; i < module_names.size(); i++)
5108         {
5109                         Version V = modules[i]->GetVersion();
5110                         char modulename[MAXBUF];
5111                         strncpy(modulename,module_names[i].c_str(),256);
5112                         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));
5113         }
5114 }
5115
5116 void handle_stats(char **parameters, int pcnt, userrec *user)
5117 {
5118         if (pcnt != 1)
5119         {
5120                 return;
5121         }
5122         if (strlen(parameters[0])>1)
5123         {
5124                 /* make the stats query 1 character long */
5125                 parameters[0][1] = '\0';
5126         }
5127
5128         /* stats m (list number of times each command has been used, plus bytecount) */
5129         if (!strcasecmp(parameters[0],"m"))
5130         {
5131                 for (int i = 0; i < cmdlist.size(); i++)
5132                 {
5133                         if (cmdlist[i].handler_function)
5134                         {
5135                                 if (cmdlist[i].use_count)
5136                                 {
5137                                         /* RPL_STATSCOMMANDS */
5138                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5139                                 }
5140                         }
5141                 }
5142
5143         }
5144
5145         /* stats z (debug and memory info) */
5146         if (!strcasecmp(parameters[0],"z"))
5147         {
5148                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5149                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5150                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5151                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5152                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5153                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5154                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5155                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5156         }
5157
5158         /* stats o */
5159         if (!strcasecmp(parameters[0],"o"))
5160         {
5161                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5162                 {
5163                         char LoginName[MAXBUF];
5164                         char HostName[MAXBUF];
5165                         char OperType[MAXBUF];
5166                         ConfValue("oper","name",i,LoginName,&config_f);
5167                         ConfValue("oper","host",i,HostName,&config_f);
5168                         ConfValue("oper","type",i,OperType,&config_f);
5169                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5170                 }
5171         }
5172
5173         /* stats l (show user I/O stats) */
5174         if (!strcasecmp(parameters[0],"l"))
5175         {
5176                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5177                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5178                 {
5179                         if (isnick(i->second->nick))
5180                         {
5181                                 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);
5182                         }
5183                         else
5184                         {
5185                                 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);
5186                         }
5187
5188                 }
5189         }
5190
5191         /* stats u (show server uptime) */
5192         if (!strcasecmp(parameters[0],"u"))
5193         {
5194                 time_t current_time = 0;
5195                 current_time = time(NULL);
5196                 time_t server_uptime = current_time - startup_time;
5197                 struct tm* stime;
5198                 stime = gmtime(&server_uptime);
5199                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5200                  * Craig suggested this, and it seemed a good idea so in it went */
5201                 if (stime->tm_year > 70)
5202                 {
5203                         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);
5204                 }
5205                 else
5206                 {
5207                         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);
5208                 }
5209         }
5210
5211         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5212         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5213
5214 }
5215
5216 void handle_connect(char **parameters, int pcnt, userrec *user)
5217 {
5218         char Link_ServerName[1024];
5219         char Link_IPAddr[1024];
5220         char Link_Port[1024];
5221         char Link_Pass[1024];
5222         int LinkPort;
5223         bool found = false;
5224
5225         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5226         {
5227                 ConfValue("link","name",i,Link_ServerName,&config_f);
5228                 ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5229                 ConfValue("link","port",i,Link_Port,&config_f);
5230                 ConfValue("link","sendpass",i,Link_Pass,&config_f);
5231                 log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5232                 LinkPort = atoi(Link_Port);
5233                 if (match(Link_ServerName,parameters[0])) {
5234                         found = true;
5235                 }
5236         }
5237
5238         if (!found) {
5239                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5240                 return;
5241         }
5242
5243         // TODO: Perform a check here to stop a server being linked twice!
5244
5245         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5246
5247         if (me[defaultRoute])
5248         {
5249
5250                 // at this point parameters[0] is an ip in a string.
5251                 // TODO: Look this up from the <link> blocks instead!
5252                 for (int j = 0; j < 255; j++) {
5253                         if (servers[j] == NULL) {
5254                                 servers[j] = new serverrec;
5255                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
5256                                 servers[j]->internal_port = LinkPort;
5257                                 strcpy(servers[j]->name,Link_ServerName);
5258                                 log(DEBUG,"Allocated new serverrec");
5259                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
5260                                 {
5261                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
5262                                 }
5263                                 return;
5264                         }
5265                 }
5266                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
5267         }
5268         else
5269         {
5270                 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);
5271         }
5272 }
5273
5274 void handle_squit(char **parameters, int pcnt, userrec *user)
5275 {
5276         // send out an squit across the mesh and then clear the server list (for local squit)
5277 }
5278
5279 char islast(serverrec* s)
5280 {
5281         char c = '`';
5282         for (int j = 0; j < 255; j++)
5283         {
5284                 if (servers[j] != NULL)
5285                 {
5286                         c = '|';
5287                 }
5288                 if (servers[j] == s)
5289                 {
5290                         c = '`';
5291                 }
5292         }
5293         return c;
5294 }
5295
5296 void handle_links(char **parameters, int pcnt, userrec *user)
5297 {
5298         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5299         for (int j = 0; j < 255; j++)
5300         {
5301                 if (servers[j] != NULL)
5302                 {
5303                         WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,servers[j]->name,ServerName,servers[j]->description);
5304                 }
5305         }
5306         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5307 }
5308
5309 void handle_map(char **parameters, int pcnt, userrec *user)
5310 {
5311         WriteServ(user->fd,"006 %s :%s",user->nick,ServerName);
5312         for (int j = 0; j < 255; j++)
5313         {
5314                 if (servers[j] != NULL)
5315                 {
5316                         WriteServ(user->fd,"006 %s :%c-%s",user->nick,islast(servers[j]),servers[j]->name);
5317                 }
5318         }
5319         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5320 }
5321
5322
5323 void handle_oper(char **parameters, int pcnt, userrec *user)
5324 {
5325         char LoginName[MAXBUF];
5326         char Password[MAXBUF];
5327         char OperType[MAXBUF];
5328         char TypeName[MAXBUF];
5329         char Hostname[MAXBUF];
5330         int i,j;
5331
5332         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5333         {
5334                 ConfValue("oper","name",i,LoginName,&config_f);
5335                 ConfValue("oper","password",i,Password,&config_f);
5336                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5337                 {
5338                         /* correct oper credentials */
5339                         ConfValue("oper","type",i,OperType,&config_f);
5340                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5341                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5342                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5343                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5344                         {
5345                                 ConfValue("type","name",j,TypeName,&config_f);
5346                                 if (!strcmp(TypeName,OperType))
5347                                 {
5348                                         /* found this oper's opertype */
5349                                         ConfValue("type","host",j,Hostname,&config_f);
5350                                         strncpy(user->dhost,Hostname,256);
5351                                 }
5352                         }
5353                         if (!strchr(user->modes,'o'))
5354                         {
5355                                 strcat(user->modes,"o");
5356                         }
5357                         FOREACH_MOD OnOper(user);
5358                         return;
5359                 }
5360         }
5361         /* no such oper */
5362         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5363         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5364 }
5365
5366 void handle_nick(char **parameters, int pcnt, userrec *user)
5367 {
5368         if (pcnt < 1)
5369         {
5370                 log(DEBUG,"not enough params for handle_nick");
5371                 return;
5372         }
5373         if (!parameters[0])
5374         {
5375                 log(DEBUG,"invalid parameter passed to handle_nick");
5376                 return;
5377         }
5378         if (!strlen(parameters[0]))
5379         {
5380                 log(DEBUG,"zero length new nick passed to handle_nick");
5381                 return;
5382         }
5383         if (!user)
5384         {
5385                 log(DEBUG,"invalid user passed to handle_nick");
5386                 return;
5387         }
5388         if (!user->nick)
5389         {
5390                 log(DEBUG,"invalid old nick passed to handle_nick");
5391                 return;
5392         }
5393         if (!strcasecmp(user->nick,parameters[0]))
5394         {
5395                 log(DEBUG,"old nick is new nick, skipping");
5396                 return;
5397         }
5398         else
5399         {
5400                 if (strlen(parameters[0]) > 1)
5401                 {
5402                         if (parameters[0][0] == ':')
5403                         {
5404                                 *parameters[0]++;
5405                         }
5406                 }
5407                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5408                 {
5409                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5410                         return;
5411                 }
5412         }
5413         if (isnick(parameters[0]) == 0)
5414         {
5415                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5416                 return;
5417         }
5418
5419         if (user->registered == 7)
5420         {
5421                 WriteCommon(user,"NICK %s",parameters[0]);
5422
5423                 // Q token must go to ALL servers!!!
5424                 char buffer[MAXBUF];
5425                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5426                 for (int j = 0; j < 255; j++)
5427                 {
5428                         if (servers[j] != NULL)
5429                         {
5430                                 if (strcmp(servers[j]->name,ServerName))
5431                                 {
5432                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5433                                         log(DEBUG,"Sent n token");
5434                                 }
5435                         }
5436                 }
5437
5438         }
5439
5440         /* change the nick of the user in the users_hash */
5441         user = ReHashNick(user->nick, parameters[0]);
5442         /* actually change the nick within the record */
5443         if (!user) return;
5444         if (!user->nick) return;
5445
5446         strncpy(user->nick, parameters[0],NICKMAX);
5447
5448         log(DEBUG,"new nick set: %s",user->nick);
5449
5450         if (user->registered < 3)
5451                 user->registered = (user->registered | 2);
5452         if (user->registered == 3)
5453         {
5454                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5455                 ConnectUser(user);
5456         }
5457         log(DEBUG,"exit nickchange: %s",user->nick);
5458 }
5459
5460 void force_nickchange(userrec* user,const char* newnick)
5461 {
5462         char nick[MAXBUF];
5463         strcpy(nick,"");
5464
5465         if (user)
5466         {
5467                 if (newnick)
5468                 {
5469                         strncpy(nick,newnick,MAXBUF);
5470                 }
5471                 if (user->registered == 7)
5472                 {
5473                         char* pars[1];
5474                         pars[0] = nick;
5475                         handle_nick(pars,1,user);
5476                 }
5477         }
5478 }
5479
5480
5481 int process_parameters(char **command_p,char *parameters)
5482 {
5483         int i = 0;
5484         int j = 0;
5485         int q = 0;
5486         q = strlen(parameters);
5487         if (!q)
5488         {
5489                 /* no parameters, command_p invalid! */
5490                 return 0;
5491         }
5492         if (parameters[0] == ':')
5493         {
5494                 command_p[0] = parameters+1;
5495                 return 1;
5496         }
5497         if (q)
5498         {
5499                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5500                 {
5501                         /* only one parameter */
5502                         command_p[0] = parameters;
5503                         if (parameters[0] == ':')
5504                         {
5505                                 if (strchr(parameters,' ') != NULL)
5506                                 {
5507                                         command_p[0]++;
5508                                 }
5509                         }
5510                         return 1;
5511                 }
5512         }
5513         command_p[j++] = parameters;
5514         for (int i = 0; i <= q; i++)
5515         {
5516                 if (parameters[i] == ' ')
5517                 {
5518                         command_p[j++] = parameters+i+1;
5519                         parameters[i] = '\0';
5520                         if (command_p[j-1][0] == ':')
5521                         {
5522                                 *command_p[j-1]++; /* remove dodgy ":" */
5523                                 break;
5524                                 /* parameter like this marks end of the sequence */
5525                         }
5526                 }
5527         }
5528         return j; /* returns total number of items in the list */
5529 }
5530
5531 void process_command(userrec *user, char* cmd)
5532 {
5533         char *parameters;
5534         char *command;
5535         char *command_p[127];
5536         char p[MAXBUF], temp[MAXBUF];
5537         int i, j, items, cmd_found;
5538
5539         for (int i = 0; i < 127; i++)
5540                 command_p[i] = NULL;
5541
5542         if (!user)
5543         {
5544                 return;
5545         }
5546         if (!cmd)
5547         {
5548                 return;
5549         }
5550         if (!strcmp(cmd,""))
5551         {
5552                 return;
5553         }
5554
5555         int total_params = 0;
5556         if (strlen(cmd)>2)
5557         {
5558                 for (int q = 0; q < strlen(cmd)-1; q++)
5559                 {
5560                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5561                         {
5562                                 total_params++;
5563                                 // found a 'trailing', we dont count them after this.
5564                                 break;
5565                         }
5566                         if (cmd[q] == ' ')
5567                                 total_params++;
5568                 }
5569         }
5570
5571         // another phidjit bug...
5572         if (total_params > 126)
5573         {
5574                 kill_link(user,"Protocol violation (1)");
5575                 return;
5576         }
5577
5578         strcpy(temp,cmd);
5579
5580         string tmp = cmd;
5581         FOREACH_MOD OnServerRaw(tmp,true);
5582         const char* cmd2 = tmp.c_str();
5583         snprintf(cmd,512,"%s",cmd2);
5584
5585         if (!strchr(cmd,' '))
5586         {
5587                 /* no parameters, lets skip the formalities and not chop up
5588                  * the string */
5589                 log(DEBUG,"About to preprocess command with no params");
5590                 items = 0;
5591                 command_p[0] = NULL;
5592                 parameters = NULL;
5593                 for (int i = 0; i <= strlen(cmd); i++)
5594                 {
5595                         cmd[i] = toupper(cmd[i]);
5596                 }
5597                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5598                 command = cmd;
5599         }
5600         else
5601         {
5602                 strcpy(cmd,"");
5603                 j = 0;
5604                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5605                 for (int i = 0; i < strlen(temp); i++)
5606                 {
5607                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5608                         {
5609                                 cmd[j++] = temp[i];
5610                                 cmd[j] = 0;
5611                         }
5612                 }
5613                 /* split the full string into a command plus parameters */
5614                 parameters = p;
5615                 strcpy(p," ");
5616                 command = cmd;
5617                 if (strchr(cmd,' '))
5618                 {
5619                         for (int i = 0; i <= strlen(cmd); i++)
5620                         {
5621                                 /* capitalise the command ONLY, leave params intact */
5622                                 cmd[i] = toupper(cmd[i]);
5623                                 /* are we nearly there yet?! :P */
5624                                 if (cmd[i] == ' ')
5625                                 {
5626                                         command = cmd;
5627                                         parameters = cmd+i+1;
5628                                         cmd[i] = '\0';
5629                                         break;
5630                                 }
5631                         }
5632                 }
5633                 else
5634                 {
5635                         for (int i = 0; i <= strlen(cmd); i++)
5636                         {
5637                                 cmd[i] = toupper(cmd[i]);
5638                         }
5639                 }
5640
5641         }
5642         cmd_found = 0;
5643
5644         if (strlen(command)>MAXCOMMAND)
5645         {
5646                 kill_link(user,"Protocol violation (2)");
5647                 return;
5648         }
5649
5650         for (int x = 0; x < strlen(command); x++)
5651         {
5652                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5653                 {
5654                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5655                         {
5656                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5657                                 {
5658                                         kill_link(user,"Protocol violation (3)");
5659                                         return;
5660                                 }
5661                         }
5662                 }
5663         }
5664
5665         for (int i = 0; i != cmdlist.size(); i++)
5666         {
5667                 if (strcmp(cmdlist[i].command,""))
5668                 {
5669                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5670                         {
5671                                 log(DEBUG,"Found matching command");
5672
5673                                 if (parameters)
5674                                 {
5675                                         if (strcmp(parameters,""))
5676                                         {
5677                                                 items = process_parameters(command_p,parameters);
5678                                         }
5679                                         else
5680                                         {
5681                                                 items = 0;
5682                                                 command_p[0] = NULL;
5683                                         }
5684                                 }
5685                                 else
5686                                 {
5687                                         items = 0;
5688                                         command_p[0] = NULL;
5689                                 }
5690
5691                                 if (user)
5692                                 {
5693                                         log(DEBUG,"Processing command");
5694
5695                                         /* activity resets the ping pending timer */
5696                                         user->nping = time(NULL) + 120;
5697                                         if ((items) < cmdlist[i].min_params)
5698                                         {
5699                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5700                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5701                                                 return;
5702                                         }
5703                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5704                                         {
5705                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5706                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5707                                                 cmd_found = 1;
5708                                                 return;
5709                                         }
5710                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5711                                          * deny command! */
5712                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5713                                         {
5714                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5715                                                 {
5716                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5717                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5718                                                         return;
5719                                                 }
5720                                         }
5721                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5722                                         {
5723                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5724                                                 if (cmdlist[i].handler_function)
5725                                                 {
5726                                                         /* ikky /stats counters */
5727                                                         if (temp)
5728                                                         {
5729                                                                 if (user)
5730                                                                 {
5731                                                                         user->bytes_in += strlen(temp);
5732                                                                         user->cmds_in++;
5733                                                                 }
5734                                                                 cmdlist[i].use_count++;
5735                                                                 cmdlist[i].total_bytes+=strlen(temp);
5736                                                         }
5737
5738                                                         /* WARNING: nothing may come after the
5739                                                          * command handler call, as the handler
5740                                                          * may free the user structure! */
5741
5742                                                         cmdlist[i].handler_function(command_p,items,user);
5743                                                 }
5744                                                 return;
5745                                         }
5746                                         else
5747                                         {
5748                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5749                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5750                                                 return;
5751                                         }
5752                                 }
5753                                 cmd_found = 1;
5754                         }
5755                 }
5756         }
5757         if ((!cmd_found) && (user))
5758         {
5759                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5760                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5761         }
5762 }
5763
5764
5765 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5766 {
5767         command_t comm;
5768         /* create the command and push it onto the table */
5769         strcpy(comm.command,cmd);
5770         comm.handler_function = f;
5771         comm.flags_needed = flags;
5772         comm.min_params = minparams;
5773         comm.use_count = 0;
5774         comm.total_bytes = 0;
5775         cmdlist.push_back(comm);
5776         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5777 }
5778
5779 void SetupCommandTable(void)
5780 {
5781         createcommand("USER",handle_user,0,4);
5782         createcommand("NICK",handle_nick,0,1);
5783         createcommand("QUIT",handle_quit,0,0);
5784         createcommand("VERSION",handle_version,0,0);
5785         createcommand("PING",handle_ping,0,1);
5786         createcommand("PONG",handle_pong,0,1);
5787         createcommand("ADMIN",handle_admin,0,0);
5788         createcommand("PRIVMSG",handle_privmsg,0,2);
5789         createcommand("INFO",handle_info,0,0);
5790         createcommand("TIME",handle_time,0,0);
5791         createcommand("WHOIS",handle_whois,0,1);
5792         createcommand("WALLOPS",handle_wallops,'o',1);
5793         createcommand("NOTICE",handle_notice,0,2);
5794         createcommand("JOIN",handle_join,0,1);
5795         createcommand("NAMES",handle_names,0,1);
5796         createcommand("PART",handle_part,0,1);
5797         createcommand("KICK",handle_kick,0,2);
5798         createcommand("MODE",handle_mode,0,1);
5799         createcommand("TOPIC",handle_topic,0,1);
5800         createcommand("WHO",handle_who,0,1);
5801         createcommand("MOTD",handle_motd,0,0);
5802         createcommand("RULES",handle_rules,0,0);
5803         createcommand("OPER",handle_oper,0,2);
5804         createcommand("LIST",handle_list,0,0);
5805         createcommand("DIE",handle_die,'o',1);
5806         createcommand("RESTART",handle_restart,'o',1);
5807         createcommand("KILL",handle_kill,'o',2);
5808         createcommand("REHASH",handle_rehash,'o',0);
5809         createcommand("LUSERS",handle_lusers,0,0);
5810         createcommand("STATS",handle_stats,0,1);
5811         createcommand("USERHOST",handle_userhost,0,1);
5812         createcommand("AWAY",handle_away,0,0);
5813         createcommand("ISON",handle_ison,0,0);
5814         createcommand("SUMMON",handle_summon,0,0);
5815         createcommand("USERS",handle_users,0,0);
5816         createcommand("INVITE",handle_invite,0,2);
5817         createcommand("PASS",handle_pass,0,1);
5818         createcommand("TRACE",handle_trace,'o',0);
5819         createcommand("WHOWAS",handle_whowas,0,1);
5820         createcommand("CONNECT",handle_connect,'o',1);
5821         createcommand("SQUIT",handle_squit,'o',1);
5822         createcommand("MODULES",handle_modules,'o',0);
5823         createcommand("LINKS",handle_links,0,0);
5824         createcommand("MAP",handle_map,0,0);
5825 }
5826
5827 void process_buffer(const char* cmdbuf,userrec *user)
5828 {
5829         if (!user)
5830         {
5831                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5832                 return;
5833         }
5834         char cmd[MAXBUF];
5835         int i;
5836         if (!cmdbuf)
5837         {
5838                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5839                 return;
5840         }
5841         if (!strcmp(cmdbuf,""))
5842         {
5843                 return;
5844         }
5845         strncpy(cmd,cmdbuf,MAXBUF);
5846         if (!strcmp(cmd,""))
5847         {
5848                 return;
5849         }
5850         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5851         {
5852                 cmd[strlen(cmd)-1] = '\0';
5853         }
5854         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5855         {
5856                 cmd[strlen(cmd)-1] = '\0';
5857         }
5858         if (!strcmp(cmd,""))
5859         {
5860                 return;
5861         }
5862         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5863         tidystring(cmd);
5864         if ((user) && (cmd))
5865         {
5866                 process_command(user,cmd);
5867         }
5868 }
5869
5870 void DoSync(serverrec* serv, char* udp_host,int udp_port, long MyKey)
5871 {
5872         char data[MAXBUF];
5873         // send start of sync marker: Y <timestamp>
5874         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
5875         // except the ones its receiving it from.
5876         snprintf(data,MAXBUF,"Y %d",time(NULL));
5877         serv->SendPacket(data,udp_host,udp_port,MyKey);
5878         // send users and channels
5879         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
5880         {
5881                 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);
5882                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5883                 if (strcmp(chlist(u->second),""))
5884                 {
5885                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
5886                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5887                 }
5888         }
5889         // send channel modes, topics etc...
5890         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
5891         {
5892                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
5893                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5894                 if (strcmp(c->second->topic,""))
5895                 {
5896                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
5897                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5898                 }
5899                 // send current banlist
5900
5901                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
5902                 {
5903                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
5904                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5905                 }
5906         }
5907         // send end of sync marker: E <timestamp>
5908         snprintf(data,MAXBUF,"F %d",time(NULL));
5909         serv->SendPacket(data,udp_host,udp_port,MyKey);
5910         // ircd sends its serverlist after the end of sync here
5911 }
5912
5913
5914 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5915 {
5916         char* src = strtok(params," ");
5917         char* dest = strtok(NULL," :");
5918         char* text = strtok(NULL,"\r\n");
5919         text++;
5920
5921         userrec* user = Find(src);
5922         if (user)
5923         {
5924                 userrec* dst = Find(dest);
5925
5926                 if (dst)
5927                 {
5928                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
5929                 }
5930                 else
5931                 {
5932                         chanrec* d = FindChan(dest);
5933                         if (d)
5934                         {
5935                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
5936                         }
5937                 }
5938         }
5939
5940 }
5941
5942
5943 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5944 {
5945         char* src = strtok(params," ");
5946         char* dest = strtok(NULL," :");
5947         char* text = strtok(NULL,"\r\n");
5948         text++;
5949
5950         userrec* user = Find(src);
5951         if (user)
5952         {
5953                 userrec* dst = Find(dest);
5954
5955                 if (dst)
5956                 {
5957                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
5958                 }
5959                 else
5960                 {
5961                         chanrec* d = FindChan(dest);
5962                         if (d)
5963                         {
5964                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
5965                         }
5966                 }
5967         }
5968
5969 }
5970
5971
5972 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5973 {
5974         char* tm = strtok(params," ");
5975         char* setby = strtok(NULL," ");
5976         char* channel = strtok(NULL," :");
5977         char* topic = strtok(NULL,"\r\n");
5978         topic++;
5979         time_t TS = atoi(tm);
5980         chanrec* c = FindChan(channel);
5981         if (c)
5982         {
5983                 // in the case of topics and TS, the *NEWER*
5984                 if (TS <= c->topicset)
5985                 {
5986                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
5987                         strncpy(c->topic,topic,MAXTOPIC);
5988                         strncpy(c->setby,setby,NICKMAX);
5989                 }
5990         }
5991 }
5992
5993 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5994 {
5995         char* pars[128];
5996         char original[MAXBUF],target[MAXBUF];
5997         strncpy(original,params,MAXBUF);
5998         int index = 0;
5999         char* parameter = strtok(params," ");
6000         strncpy(target,parameter,MAXBUF);
6001         while (parameter)
6002         {
6003                 pars[index++] = parameter;
6004                 parameter = strtok(NULL," ");
6005         }
6006         merge_mode(pars,--index);
6007         if (FindChan(target))
6008         {
6009                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6010         }
6011         if (Find(target))
6012         {
6013                 WriteTo(NULL,Find(target),"MODE %s",original);
6014         }
6015 }
6016
6017 // m is modes set by users only (not servers) valid targets are channels or users.
6018
6019 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6020 {
6021         // m blah #chatspike +b *!test@*4
6022         char* pars[128];
6023         char original[MAXBUF];
6024         strncpy(original,params,MAXBUF);
6025
6026         if (!strchr(params,' '))
6027         {
6028                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6029                 return;
6030         }
6031
6032         char* o = original;
6033         while (o[0] != ' ')
6034                 o++;
6035         o++;
6036
6037         int index = 0;
6038
6039         char* src = strtok(params," ");
6040         userrec* user = Find(src);
6041
6042         if (user)
6043         {
6044                 log(DEBUG,"Found user: %s",user->nick);
6045                 char* parameter = strtok(NULL," ");
6046                 while (parameter)
6047                 {
6048                         pars[index++] = parameter;
6049                         parameter = strtok(NULL," ");
6050                 }
6051
6052                 log(DEBUG,"Calling merge_mode2");
6053                 merge_mode2(pars,--index,user);
6054         }
6055 }
6056
6057
6058 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6059 {
6060         char* nick = strtok(params," ");
6061         char* channel = strtok(NULL," :");
6062         char* reason = strtok(NULL,"\r\n");
6063         userrec* user = Find(nick);
6064         reason++;
6065         if (user)
6066         {
6067                 if (strcmp(reason,""))
6068                 {
6069                         del_channel(user,channel,reason,true);
6070                 }
6071                 else
6072                 {
6073                         del_channel(user,channel,NULL,true);
6074                 }
6075         }
6076 }
6077
6078 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6079 {
6080         char* nick = strtok(params," :");
6081         char* reason = strtok(NULL,"\r\n");
6082         reason++;
6083
6084         userrec* user = Find(nick);
6085
6086         if (user)
6087         {
6088                 if (strlen(reason)>MAXQUIT)
6089                 {
6090                         reason[MAXQUIT-1] = '\0';
6091                 }
6092
6093
6094                 WriteCommonExcept(user,"QUIT :%s",reason);
6095
6096                 user_hash::iterator iter = clientlist.find(user->nick);
6097
6098                 if (iter != clientlist.end())
6099                 {
6100                         log(DEBUG,"deleting user hash value %d",iter->second);
6101                         if ((iter->second) && (user->registered == 7)) {
6102                                 delete iter->second;
6103                         }
6104                         clientlist.erase(iter);
6105                 }
6106
6107                 purge_empty_chans();
6108         }
6109 }
6110
6111 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6112 {
6113         char* oldnick = strtok(params," ");
6114         char* newnick = strtok(NULL," ");
6115
6116         userrec* user = Find(oldnick);
6117
6118         if (user)
6119         {
6120                 WriteCommon(user,"NICK %s",newnick);
6121                 user = ReHashNick(user->nick, newnick);
6122                 if (!user) return;
6123                 if (!user->nick) return;
6124                 strncpy(user->nick, newnick,NICKMAX);
6125                 log(DEBUG,"new nick set: %s",user->nick);
6126         }
6127 }
6128
6129 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6130 {
6131         char* tm = strtok(params," ");
6132         char* nick = strtok(NULL," ");
6133         char* host = strtok(NULL," ");
6134         char* dhost = strtok(NULL," ");
6135         char* ident = strtok(NULL," ");
6136         char* modes = strtok(NULL," ");
6137         char* server = strtok(NULL," :");
6138         char* gecos = strtok(NULL,"\r\n");
6139         gecos++;
6140         modes++;
6141         time_t TS = atoi(tm);
6142         user_hash::iterator iter = clientlist.find(nick);
6143         if (iter != clientlist.end())
6144         {
6145                 // nick collision
6146                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6147                 if (TS >= iter->second->age)
6148                 {
6149                         char str[MAXBUF];
6150                         snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6151                         WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6152                         // client on remote server is older than the local user, kill the local user
6153                         kill_link(iter->second,str);
6154                 }
6155         }
6156         clientlist[nick] = new userrec();
6157         // remote users have an fd of -1. This is so that our Write abstraction
6158         // routines know to route any messages to this record away to whatever server
6159         // theyre on.
6160         clientlist[nick]->fd = -1;
6161         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6162         strncpy(clientlist[nick]->host, host,160);
6163         strncpy(clientlist[nick]->dhost, dhost,160);
6164         strncpy(clientlist[nick]->server, server,256);
6165         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for '~'
6166         strncpy(clientlist[nick]->fullname, gecos,128);
6167         clientlist[nick]->signon = TS;
6168         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6169         clientlist[nick]->lastping = 1;
6170         clientlist[nick]->port = 0; // so is this...
6171         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6172         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6173         for (int i = 0; i < MAXCHANS; i++)
6174         {
6175                 clientlist[nick]->chans[i].channel = NULL;
6176                 clientlist[nick]->chans[i].uc_modes = 0;
6177         }
6178 }
6179
6180 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6181 {
6182         long tdiff = time(NULL) - atoi(params);
6183         if (tdiff)
6184                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6185 }
6186
6187 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6188 {
6189         // IMPORTANT NOTE
6190         // The J token currently has no timestamp - this needs looking at
6191         // because it will allow splitriding.
6192         char* nick = strtok(params," ");
6193         char* channel = strtok(NULL," ");
6194         userrec* user = Find(nick);
6195         while (channel)
6196         {
6197                 if ((user != NULL) && (strcmp(channel,"")))
6198                 {
6199                         char privilage = '\0';
6200                         if (channel[0] != '#')
6201                         {
6202                                 privilage = channel[0];
6203                                 channel++;
6204                         }
6205                         add_channel(user,channel,"",true);
6206
6207                         // now work out the privilages they should have on each channel
6208                         // and send the appropriate servermodes.
6209                         for (int i = 0; i != MAXCHANS; i++)
6210                         {
6211                                 if (user->chans[i].channel)
6212                                 {
6213                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6214                                         {
6215                                                 if (privilage == '@')
6216                                                 {
6217                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6218                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6219                                                 }
6220                                                 if (privilage == '%')
6221                                                 {
6222                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6223                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6224                                                 }
6225                                                 if (privilage == '+')
6226                                                 {
6227                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6228                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6229                                                 }
6230                                         }
6231                                 }
6232                         }
6233
6234                 }
6235                 channel = strtok(NULL," ");
6236         }
6237 }
6238
6239 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6240 {
6241         switch(token)
6242         {
6243                 // Y <TS>
6244                 // start netburst
6245                 case 'Y':
6246                         nb_start = time(NULL);
6247                         WriteOpers("Server %s is starting netburst.",source->name);
6248                 break;
6249                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6250                 // introduce remote client
6251                 case 'N':
6252                         handle_N(token,params,source,reply,udp_host,udp_port);
6253                 break;
6254                 // n <NICK> <NEWNICK>
6255                 // change nickname of client -- a server should only be able to
6256                 // change the nicknames of clients that reside on it unless
6257                 // they are ulined.
6258                 case 'n':
6259                         handle_n(token,params,source,reply,udp_host,udp_port);
6260                 break;
6261                 // J <NICK> <CHANLIST>
6262                 // Join user to channel list, merge channel permissions
6263                 case 'J':
6264                         handle_J(token,params,source,reply,udp_host,udp_port);
6265                 break;
6266                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6267                 // change channel topic (netburst only)
6268                 case 'T':
6269                         handle_T(token,params,source,reply,udp_host,udp_port);
6270                 break;
6271                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6272                 // Server setting modes on an object
6273                 case 'M':
6274                         handle_M(token,params,source,reply,udp_host,udp_port);
6275                 break;
6276                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6277                 // User setting modes on an object
6278                 case 'm':
6279                         handle_m(token,params,source,reply,udp_host,udp_port);
6280                 break;
6281                 // P <SOURCE> <TARGET> :<TEXT>
6282                 // Send a private/channel message
6283                 case 'P':
6284                         handle_P(token,params,source,reply,udp_host,udp_port);
6285                 break;
6286                 // V <SOURCE> <TARGET> :<TEXT>
6287                 // Send a private/channel notice
6288                 case 'V':
6289                         handle_V(token,params,source,reply,udp_host,udp_port);
6290                 break;
6291                 // L <SOURCE> <CHANNEL> :<REASON>
6292                 // User parting a channel
6293                 case 'L':
6294                         handle_L(token,params,source,reply,udp_host,udp_port);
6295                 break;
6296                 // Q <SOURCE> :<REASON>
6297                 // user quitting
6298                 case 'Q':
6299                         handle_Q(token,params,source,reply,udp_host,udp_port);
6300                 break;
6301                 // F <TS>
6302                 // end netburst
6303                 case 'F':
6304                         WriteOpers("Server %s has completed netburst. (%d secs)",source->name,time(NULL)-nb_start);
6305                         handle_F(token,params,source,reply,udp_host,udp_port);
6306                 break;
6307                 // anything else
6308                 default:
6309                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6310                 break;
6311         }
6312 }
6313
6314
6315 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
6316 {
6317         char response[10240];
6318         char token = udp_msg[0];
6319         char* params = udp_msg + 2;
6320         char finalparam[1024];
6321         strcpy(finalparam," :xxxx");
6322         if (strstr(params," :")) {
6323                 strncpy(finalparam,strstr(params," :"),1024);
6324         }
6325         if (token == 'S') {
6326                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6327                 char* servername = strtok(params," ");
6328                 char* password = strtok(NULL," ");
6329                 char* serverdesc = finalparam+2;
6330                 WriteOpers("CONNECT from %s (%s)",servername,udp_host);
6331
6332
6333                 char Link_ServerName[1024];
6334                 char Link_IPAddr[1024];
6335                 char Link_Port[1024];
6336                 char Link_Pass[1024];
6337                 char Link_SendPass[1024];
6338                 int LinkPort = 0;
6339
6340                 // search for a corresponding <link> block in the config files
6341                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6342                 {
6343                         ConfValue("link","name",i,Link_ServerName,&config_f);
6344                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6345                         ConfValue("link","port",i,Link_Port,&config_f);
6346                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6347                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6348                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6349                         LinkPort = atoi(Link_Port);
6350                         if (!strcasecmp(Link_ServerName,servername)) {
6351                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6352                                         if (LinkPort == udp_port) {
6353                                                 // we have a matching link line -
6354                                                 // send a 'diminutive' server message back...
6355                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6356                                                 serv->SendPacket(response,udp_host,udp_port,0);
6357                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
6358                                                 for (int j = 0; j < 255; j++) {
6359                                                         if (servers[j] == NULL) {
6360                                                                 servers[j] = new serverrec;
6361                                                                 strcpy(servers[j]->internal_addr,udp_host);
6362                                                                 strcpy(servers[j]->name,servername);
6363                                                                 strcpy(servers[j]->description,serverdesc);
6364                                                                 servers[j]->internal_port = udp_port;
6365                                                                 // create a server record for this server
6366                                                                 snprintf(response,10240,"O %d",MyKey);
6367                                                                 serv->SendPacket(response,udp_host,udp_port,0);
6368                                                                 return;
6369                                                         }
6370                                                 }
6371                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
6372                                                 return;
6373                                         }
6374                                         else {
6375                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6376                                         }
6377                                 }
6378                                 else {
6379                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6380                                 }
6381                         }
6382                         else {
6383                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6384                         }
6385                 }
6386                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6387                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6388                 return;
6389         }
6390         else
6391         if (token == 'O') {
6392                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
6393                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
6394                 // array, which is only added by an 'S' packet or BeginLink().
6395                 for (int i = 0; i < 255; i++) {
6396                         if (servers[i] != NULL) {
6397                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
6398                                         servers[i]->key = atoi(params);
6399                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
6400                                         DoSync(serv,udp_host,udp_port,MyKey);
6401                                         return;
6402                                 }
6403                         }
6404                 }
6405                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
6406         }
6407         else
6408         if (token == 's') {
6409                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6410                 char* servername = strtok(params," ");
6411                 char* password = strtok(NULL," ");
6412                 char* serverdesc = finalparam+2;
6413
6414                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6415                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6416                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6417                 // a connect, so put out an oper alert!
6418
6419
6420
6421
6422                 // for now, just accept all, we'll fix that later.
6423                 WriteOpers("%s accepted our link credentials ",servername);
6424
6425                 char Link_ServerName[1024];
6426                 char Link_IPAddr[1024];
6427                 char Link_Port[1024];
6428                 char Link_Pass[1024];
6429                 char Link_SendPass[1024];
6430                 int LinkPort = 0;
6431
6432                 // search for a corresponding <link> block in the config files
6433                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6434                 {
6435                         ConfValue("link","name",i,Link_ServerName,&config_f);
6436                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6437                         ConfValue("link","port",i,Link_Port,&config_f);
6438                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6439                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6440                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6441                         LinkPort = atoi(Link_Port);
6442                         if (!strcasecmp(Link_ServerName,servername)) {
6443                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6444                                         if (LinkPort == udp_port) {
6445                                                 // matching link at this end too, we're all done!
6446                                                 // at this point we must begin key exchange and insert this
6447                                                 // server into our 'active' table.
6448                                                 for (int j = 0; j < 255; j++) {
6449                                                         if (servers[j] != NULL) {
6450                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6451                                                                         strcpy(servers[j]->description,serverdesc);
6452                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6453                                                                         snprintf(response,10240,"O %d",MyKey);
6454                                                                         serv->SendPacket(response,udp_host,udp_port,0);
6455                                                                         return;
6456                                                                 }
6457                                                         }
6458                                                 }
6459                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6460                                                 return;
6461
6462                                         }
6463                                         else {
6464                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6465                                         }
6466                                 }
6467                                 else {
6468                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6469                                 }
6470                         }
6471                         else {
6472                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6473                         }
6474                 }
6475                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6476                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6477                 return;
6478         }
6479         else
6480         if (token == 'E') {
6481                 char* error_message = finalparam+2;
6482                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6483                 // remove this server from any lists
6484                 for (int j = 0; j < 255; j++) {
6485                         if (servers[j] != NULL) {
6486                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6487                                         delete servers[j];
6488                                         return;
6489                                 }
6490                         }
6491                 }
6492                 return;
6493         }
6494         else {
6495
6496                 serverrec* source_server = NULL;
6497
6498                 for (int j = 0; j < 255; j++) {
6499                         if (servers[j] != NULL) {
6500                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6501                                         if (servers[j]->key == theirkey) {
6502                                                 // found a valid key for this server, can process restricted stuff here
6503                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
6504                                                 return;
6505                                         }
6506                                 }
6507                         }
6508                 }
6509
6510                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
6511         }
6512 }
6513
6514 int reap_counter = 0;
6515
6516 int InspIRCd(void)
6517 {
6518         struct sockaddr_in client, server;
6519         char addrs[MAXBUF][255];
6520         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6521         socklen_t length;
6522         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6523         int selectResult = 0, selectResult2 = 0;
6524         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6525         char resolvedHost[MAXBUF];
6526         fd_set selectFds;
6527         struct timeval tv;
6528
6529         log_file = fopen("ircd.log","a+");
6530         if (!log_file)
6531         {
6532                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6533                 Exit(ERROR);
6534         }
6535
6536         log(DEBUG,"InspIRCd: startup: begin");
6537         log(DEBUG,"$Id$");
6538         if (geteuid() == 0)
6539         {
6540                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6541                 Exit(ERROR);
6542                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6543         }
6544         SetupCommandTable();
6545         log(DEBUG,"InspIRCd: startup: default command table set up");
6546
6547         ReadConfig();
6548         if (strcmp(DieValue,""))
6549         {
6550                 printf("WARNING: %s\n\n",DieValue);
6551                 exit(0);
6552         }
6553         log(DEBUG,"InspIRCd: startup: read config");
6554
6555         int count2 = 0, count3 = 0;
6556
6557         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6558         {
6559                 ConfValue("bind","port",count,configToken,&config_f);
6560                 ConfValue("bind","address",count,Addr,&config_f);
6561                 ConfValue("bind","type",count,Type,&config_f);
6562                 if (!strcmp(Type,"servers"))
6563                 {
6564                         char Default[MAXBUF];
6565                         strcpy(Default,"no");
6566                         ConfValue("bind","default",count,Default,&config_f);
6567                         if (strchr(Default,'y'))
6568                         {
6569                                 defaultRoute = count3;
6570                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6571                         }
6572                         me[count3] = new serverrec(ServerName,100L,false);
6573                         me[count3]->CreateListener(Addr,atoi(configToken));
6574                         count3++;
6575                 }
6576                 else
6577                 {
6578                         ports[count2] = atoi(configToken);
6579                         strcpy(addrs[count2],Addr);
6580                         count2++;
6581                 }
6582                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6583         }
6584         portCount = count2;
6585         UDPportCount = count3;
6586
6587         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6588
6589         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6590
6591         printf("\n");
6592
6593         /* BugFix By Craig! :p */
6594         count = 0;
6595         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6596         {
6597                 char modfile[MAXBUF];
6598                 ConfValue("module","name",count2,configToken,&config_f);
6599                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6600                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6601                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6602                 /* If The File Doesnt exist, Trying to load it
6603                  * Will Segfault the IRCd.. So, check to see if
6604                  * it Exists, Before Proceeding. */
6605                 if (FileExists(modfile))
6606                 {
6607                         factory[count] = new ircd_module(modfile);
6608                         if (factory[count]->LastError())
6609                         {
6610                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6611                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6612                                 Exit(ERROR);
6613                         }
6614                         if (factory[count]->factory)
6615                         {
6616                                 modules[count] = factory[count]->factory->CreateModule();
6617                                 /* save the module and the module's classfactory, if
6618                                  * this isnt done, random crashes can occur :/ */
6619                                 module_names.push_back(modfile);
6620                         }
6621                         else
6622                         {
6623                                 log(DEBUG,"Unable to load %s",modfile);
6624                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6625                                 Exit(ERROR);
6626                         }
6627                         /* Increase the Count */
6628                         count++;
6629                 }
6630                 else
6631                 {
6632                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6633                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6634                 }
6635         }
6636         MODCOUNT = count - 1;
6637         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6638
6639         printf("\nInspIRCd is now running!\n");
6640
6641         startup_time = time(NULL);
6642
6643         if (nofork)
6644         {
6645                 log(VERBOSE,"Not forking as -nofork was specified");
6646         }
6647         else
6648         {
6649                 if (DaemonSeed() == ERROR)
6650                 {
6651                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6652                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6653                         Exit(ERROR);
6654                 }
6655         }
6656
6657
6658         /* setup select call */
6659         FD_ZERO(&selectFds);
6660         log(DEBUG,"InspIRCd: startup: zero selects");
6661         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
6662
6663         for (count = 0; count < portCount; count++)
6664         {
6665                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
6666                 {
6667                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
6668                         return(ERROR);
6669                 }
6670                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
6671                 {
6672                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
6673                 }
6674                 else    /* well we at least bound to one socket so we'll continue */
6675                 {
6676                         boundPortCount++;
6677                 }
6678         }
6679
6680         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
6681
6682         /* if we didn't bind to anything then abort */
6683         if (boundPortCount == 0)
6684         {
6685                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
6686                 return (ERROR);
6687         }
6688
6689         length = sizeof (client);
6690         int flip_flop = 0, udp_port = 0;
6691         char udp_msg[MAXBUF], udp_host[MAXBUF];
6692
6693         /* main loop, this never returns */
6694         for (;;)
6695         {
6696
6697                 fd_set sfd;
6698                 struct timeval tval;
6699                 FD_ZERO(&sfd);
6700
6701                 user_hash::iterator count2 = clientlist.begin();
6702
6703                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
6704                 // them in a list, then reap the list every second or so.
6705                 if (reap_counter>5000)
6706                 {
6707                         if (fd_reap.size() > 0)
6708                         {
6709                                 for( int n = 0; n < fd_reap.size(); n++)
6710                                 {
6711                                         Blocking(fd_reap[n]);
6712                                         close(fd_reap[n]);
6713                                         NonBlocking(fd_reap[n]);
6714                                 }
6715                         }
6716                         fd_reap.clear();
6717                         reap_counter=0;
6718                 }
6719
6720
6721                 for (int x = 0; x != UDPportCount; x++)
6722                 {
6723                         long theirkey = 0;
6724                         if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
6725                         {
6726                                 if (strlen(udp_msg)<1) {
6727                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
6728                         }
6729                         else
6730                         {
6731                                 FOREACH_MOD OnPacketReceive(udp_msg);
6732                                 // Packets must go back via the route they arrived on :)
6733                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
6734                                 // link packets can manipulate the usertable so beware of
6735                                 // any loops here watching the user or channels hash
6736                                 log(DEBUG,"Sync: exit 3");
6737                                 goto label;
6738                         }
6739                 }
6740         }
6741
6742
6743         while (count2 != clientlist.end())
6744         {
6745                 char data[10240];
6746                 tval.tv_usec = tval.tv_sec = 0;
6747                 FD_ZERO(&sfd);
6748                 int total_in_this_set = 0;
6749
6750                 user_hash::iterator xcount = count2;
6751                 user_hash::iterator endingiter = count2;
6752
6753                 if (!count2->second) break;
6754
6755                 if (count2->second)
6756                 if (count2->second->fd != 0)
6757                 {
6758                         // assemble up to 64 sockets into an fd_set
6759                         // to implement a pooling mechanism.
6760                         //
6761                         // This should be up to 64x faster than the
6762                         // old implementation.
6763                         while (total_in_this_set < 64)
6764                         {
6765                                 if (count2 != clientlist.end())
6766                                 {
6767                                         // we don't check the state of remote users.
6768                                         if (count2->second->fd > 0)
6769                                         {
6770                                                 FD_SET (count2->second->fd, &sfd);
6771
6772                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
6773                                                 // their connection class.
6774                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
6775                                                 {
6776                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
6777                                                         kill_link(count2->second,"Registration timeout");
6778                                                         goto label;
6779                                                 }
6780                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
6781                                                 {
6782                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
6783                                                         {
6784                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
6785                                                                 kill_link(count2->second,"Ping timeout");
6786                                                                 goto label;
6787                                                         }
6788                                                         Write(count2->second->fd,"PING :%s",ServerName);
6789                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
6790                                                         count2->second->lastping = 0;
6791                                                         count2->second->nping = time(NULL)+120;
6792                                                 }
6793                                         }
6794                                         count2++;
6795                                         total_in_this_set++;
6796                                 }
6797                                 else break;
6798                         }
6799
6800                         endingiter = count2;
6801                         count2 = xcount; // roll back to where we were
6802
6803                         int v = 0;
6804
6805                         tval.tv_usec = 0;
6806                         tval.tv_sec = 0;
6807                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
6808
6809                         // now loop through all of the items in this pool if any are waiting
6810                         //if (selectResult2 > 0)
6811                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
6812                         {
6813                                 result = EAGAIN;
6814                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
6815                                 {
6816                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
6817                                         memset(data, 0, 10240);
6818                                         result = read(count2a->second->fd, data, 10240);
6819
6820                                         if (result)
6821                                         {
6822                                                 log(DEBUG,"Read %d characters from socket",result);
6823                                                 userrec* current = count2a->second;
6824                                                 int currfd = current->fd;
6825                                                 char* l = strtok(data,"\n");
6826                                                 int floodlines = 0;
6827                                                 while (l)
6828                                                 {
6829                                                         floodlines++;
6830                                                         if ((floodlines > current->flood) && (current->flood != 0))
6831                                                         {
6832                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6833                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6834                                                                 kill_link(current,"Excess flood");
6835                                                                 goto label;
6836                                                         }
6837                                                         char sanitized[NetBufferSize];
6838                                                         memset(sanitized, 0, NetBufferSize);
6839                                                         int ptt = 0;
6840                                                         for (int pt = 0; pt < strlen(l); pt++)
6841                                                         {
6842                                                                 if (l[pt] != '\r')
6843                                                                 {
6844                                                                         sanitized[ptt++] = l[pt];
6845                                                                 }
6846                                                         }
6847                                                         sanitized[ptt] = '\0';
6848                                                         if (strlen(sanitized))
6849                                                         {
6850
6851
6852                                                                 // we're gonna re-scan to check if the nick is gone, after every
6853                                                                 // command - if it has, we're gonna bail
6854                                                                 bool find_again = false;
6855                                                                 process_buffer(sanitized,current);
6856
6857                                                                 // look for the user's record in case it's changed
6858                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
6859                                                                 {
6860                                                                         if (c2->second->fd == currfd)
6861                                                                         {
6862                                                                                 // found again, update pointer
6863                                                                                 current == c2->second;
6864                                                                                 find_again = true;
6865                                                                                 break;
6866                                                                         }
6867                                                                 }
6868                                                                 if (!find_again)
6869                                                                         goto label;
6870
6871                                                         }
6872                                                         l = strtok(NULL,"\n");
6873                                                 }
6874                                                 goto label;
6875                                         }
6876
6877                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
6878                                         {
6879                                                 log(DEBUG,"killing: %s",count2a->second->nick);
6880                                                 kill_link(count2a->second,strerror(errno));
6881                                                 goto label;
6882                                         }
6883                                 }
6884                                 // result EAGAIN means nothing read
6885                                 if (result == EAGAIN)
6886                                 {
6887                                 }
6888                                 else
6889                                 if (result == 0)
6890                                 {
6891                                         if (count2->second)
6892                                         {
6893                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
6894                                                 kill_link(count2a->second,"Client exited");
6895                                                 // must bail here? kill_link removes the hash, corrupting the iterator
6896                                                 log(DEBUG,"Bailing from client exit");
6897                                                 goto label;
6898                                         }
6899                                 }
6900                                 else if (result > 0)
6901                                 {
6902                                 }
6903                         }
6904                 }
6905                 for (int q = 0; q < total_in_this_set; q++)
6906                 {
6907                         // there is no iterator += operator :(
6908                         //if (count2 != clientlist.end())
6909                         //{
6910                                 count2++;
6911                         //}
6912                 }
6913         }
6914
6915         // set up select call
6916         for (count = 0; count < boundPortCount; count++)
6917         {
6918                 FD_SET (openSockfd[count], &selectFds);
6919         }
6920
6921         /* added timeout! select was waiting forever... wank... :/ */
6922         tv.tv_usec = 0;
6923
6924         flip_flop++;
6925         reap_counter++;
6926         if (flip_flop > 20)
6927         {
6928                 tv.tv_usec = 1;
6929                 flip_flop = 0;
6930         }
6931
6932         tv.tv_sec = 0;
6933         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
6934
6935         /* select is reporting a waiting socket. Poll them all to find out which */
6936         if (selectResult > 0)
6937         {
6938                 char target[MAXBUF], resolved[MAXBUF];
6939                 for (count = 0; count < boundPortCount; count++)
6940                 {
6941                         if (FD_ISSET (openSockfd[count], &selectFds))
6942                         {
6943                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
6944
6945                                 address_cache::iterator iter = IP.find(client.sin_addr);
6946                                 bool iscached = false;
6947                                 if (iter == IP.end())
6948                                 {
6949                                         /* ip isn't in cache, add it */
6950                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
6951                                         if(CleanAndResolve(resolved, target) != TRUE)
6952                                         {
6953                                                 strncpy(resolved,target,MAXBUF);
6954                                         }
6955                                         /* hostname now in 'target' */
6956                                         IP[client.sin_addr] = new string(resolved);
6957                                         /* hostname in cache */
6958                                 }
6959                                 else
6960                                 {
6961                                         /* found ip (cached) */
6962                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
6963                                         iscached = true;
6964                                 }
6965
6966                                 if (incomingSockfd < 0)
6967                                 {
6968                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
6969                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
6970                                 }
6971                                 else
6972                                 {
6973                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
6974                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
6975                                 }
6976                                 goto label;
6977                         }
6978                 }
6979         }
6980         label:
6981         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
6982 }
6983 /* not reached */
6984 close (incomingSockfd);
6985 }
6986