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 #include "inspircd.h"
  20 #include "inspircd_io.h"
  21 #include "inspircd_util.h"
  22 #include "inspircd_config.h"
  23 #include <unistd.h>
  24 #include <fcntl.h>
  25 #include <sys/errno.h>
  26 #include <sys/ioctl.h>
  27 #include <sys/utsname.h>
  28 #include <cstdio>
  29 #include <time.h>
  30 #include <string>
  31 #ifdef GCC3
  32 #include <ext/hash_map>
  33 #else
  34 #include <hash_map>
  35 #endif
  36 #include <map>
  37 #include <sstream>
  38 #include <vector>
  39 #include <errno.h>
  40 #include <deque>
  41 #include "connection.h"
  42 #include "users.h"
  43 #include "servers.h"
  44 #include "ctables.h"
  45 #include "globals.h"
  46 #include "modules.h"
  47 #include "dynamic.h"
  48 #include "wildcard.h"
  49
  50 using namespace std;
  51
  52 #ifdef GCC3
  53 #define nspace __gnu_cxx
  54 #else
  55 #define nspace std
  56 #endif
  57
  58 int LogLevel = DEFAULT;
  59 char ServerName[MAXBUF];
  60 char Network[MAXBUF];
  61 char ServerDesc[MAXBUF];
  62 char AdminName[MAXBUF];
  63 char AdminEmail[MAXBUF];
  64 char AdminNick[MAXBUF];
  65 char diepass[MAXBUF];
  66 char restartpass[MAXBUF];
  67 char motd[MAXBUF];
  68 char rules[MAXBUF];
  69 char list[MAXBUF];
  70 char PrefixQuit[MAXBUF];
  71 char DieValue[MAXBUF];
  72 int debugging =  0;
  73 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  74 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  75 int DieDelay  =  5;
  76 time_t startup_time = time(NULL);
  77
  78 extern vector<Module*> modules;
  79 vector<string> module_names;
  80 extern vector<ircd_module*> factory;
  81 vector<int> fd_reap;
  82
  83 extern int MODCOUNT;
  84
  85 bool nofork = false;
  86
  87 namespace nspace
  88 {
  89         template<> struct nspace::hash<in_addr>
  90         {
  91                 size_t operator()(const struct in_addr &a) const
  92                 {
  93                         size_t q;
  94                         memcpy(&q,&a,sizeof(size_t));
  95                         return q;
  96                 }
  97         };
  98
  99         template<> struct nspace::hash<string>
 100         {
 101                 size_t operator()(const string &s) const
 102                 {
 103                         char a[MAXBUF];
 104                         static struct hash<const char *> strhash;
 105                         strcpy(a,s.c_str());
 106                         strlower(a);
 107                         return strhash(a);
 108                 }
 109         };
 110 }
 111
 112
 113 struct StrHashComp
 114 {
 115
 116         bool operator()(const string& s1, const string& s2) const
 117         {
 118                 char a[MAXBUF],b[MAXBUF];
 119                 strcpy(a,s1.c_str());
 120                 strcpy(b,s2.c_str());
 121                 return (strcasecmp(a,b) == 0);
 122         }
 123
 124 };
 125
 126 struct InAddr_HashComp
 127 {
 128
 129         bool operator()(const in_addr &s1, const in_addr &s2) const
 130         {
 131                 size_t q;
 132                 size_t p;
 133
 134                 memcpy(&q,&s1,sizeof(size_t));
 135                 memcpy(&p,&s2,sizeof(size_t));
 136
 137                 return (q == p);
 138         }
 139
 140 };
 141
 142
 143 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 144 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 145 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 146 typedef std::deque<command_t> command_table;
 147
 148 serverrec* me[32];
 149 serverrec* servers[255];
 150
 151 FILE *log_file;
 152
 153 user_hash clientlist;
 154 chan_hash chanlist;
 155 user_hash whowas;
 156 command_table cmdlist;
 157 file_cache MOTD;
 158 file_cache RULES;
 159 address_cache IP;
 160
 161 ClassVector Classes;
 162
 163 struct linger linger = { 0 };
 164 char bannerBuffer[MAXBUF];
 165 int boundPortCount = 0;
 166 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 167 int defaultRoute = 0;
 168
 169 connection C;
 170
 171 long MyKey = C.GenKey();
 172
 173 /* prototypes */
 174
 175 int has_channel(userrec *u, chanrec *c);
 176 int usercount(chanrec *c);
 177 int usercount_i(chanrec *c);
 178 void update_stats_l(int fd,int data_out);
 179 char* Passwd(userrec *user);
 180 bool IsDenied(userrec *user);
 181 void AddWhoWas(userrec* u);
 182
 183
 184 void safedelete(userrec *p)
 185 {
 186         if (p)
 187         {
 188                 log(DEBUG,"deleting %s %s %s %s",p->nick,p->ident,p->dhost,p->fullname);
 189                 log(DEBUG,"safedelete(userrec*): pointer is safe to delete");
 190                 delete p;
 191         }
 192         else
 193         {
 194                 log(DEBUG,"safedelete(userrec*): unsafe pointer operation squished");
 195         }
 196 }
 197
 198 void safedelete(chanrec *p)
 199 {
 200         if (p)
 201         {
 202                 delete p;
 203                 log(DEBUG,"safedelete(chanrec*): pointer is safe to delete");
 204         }
 205         else
 206         {
 207                 log(DEBUG,"safedelete(chanrec*): unsafe pointer operation squished");
 208         }
 209 }
 210
 211
 212 void tidystring(char* str)
 213 {
 214         // strips out double spaces before a : parameter
 215
 216         char temp[MAXBUF];
 217         bool go_again = true;
 218
 219         if (!str)
 220         {
 221                 return;
 222         }
 223
 224         while ((str[0] == ' ') && (strlen(str)>0))
 225         {
 226                 str++;
 227         }
 228
 229         while (go_again)
 230         {
 231                 bool noparse = false;
 232                 int t = 0, a = 0;
 233                 go_again = false;
 234                 while (a < strlen(str))
 235                 {
 236                         if ((a<strlen(str)-1) && (noparse==false))
 237                         {
 238                                 if ((str[a] == ' ') && (str[a+1] == ' '))
 239                                 {
 240                                         log(DEBUG,"Tidied extra space out of string: %s",str);
 241                                         go_again = true;
 242                                         a++;
 243                                 }
 244                         }
 245
 246                         if (a<strlen(str)-1)
 247                         {
 248                                 if ((str[a] == ' ') && (str[a+1] == ':'))
 249                                 {
 250                                         noparse = true;
 251                                 }
 252                         }
 253
 254                         temp[t++] = str[a++];
 255                 }
 256                 temp[t] = '\0';
 257                 strncpy(str,temp,MAXBUF);
 258         }
 259 }
 260
 261 /* chop a string down to 512 characters and preserve linefeed (irc max
 262  * line length) */
 263
 264 void chop(char* str)
 265 {
 266
 267   string temp = str;
 268   FOREACH_MOD OnServerRaw(temp,false);
 269   const char* str2 = temp.c_str();
 270   sprintf(str,"%s",str2);
 271
 272
 273   if (strlen(str) >= 512)
 274   {
 275         str[509] = '\r';
 276         str[510] = '\n';
 277         str[511] = '\0';
 278   }
 279 }
 280
 281
 282 std::string getservername()
 283 {
 284         return ServerName;
 285 }
 286
 287 std::string getserverdesc()
 288 {
 289         return ServerDesc;
 290 }
 291
 292 std::string getnetworkname()
 293 {
 294         return Network;
 295 }
 296
 297 std::string getadminname()
 298 {
 299         return AdminName;
 300 }
 301
 302 std::string getadminemail()
 303 {
 304         return AdminEmail;
 305 }
 306
 307 std::string getadminnick()
 308 {
 309         return AdminNick;
 310 }
 311
 312 void log(int level,char *text, ...)
 313 {
 314         char textbuffer[MAXBUF];
 315         va_list argsPtr;
 316         time_t rawtime;
 317         struct tm * timeinfo;
 318         if (level < LogLevel)
 319                 return;
 320
 321         time(&rawtime);
 322         timeinfo = localtime (&rawtime);
 323
 324         if (log_file)
 325         {
 326                 char b[MAXBUF];
 327                 va_start (argsPtr, text);
 328                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 329                 va_end(argsPtr);
 330                 strcpy(b,asctime(timeinfo));
 331                 b[strlen(b)-1] = ':';
 332                 fprintf(log_file,"%s %s\n",b,textbuffer);
 333                 if (nofork)
 334                 {
 335                         // nofork enabled? display it on terminal too
 336                         printf("%s %s\n",b,textbuffer);
 337                 }
 338         }
 339 }
 340
 341 void readfile(file_cache &F, const char* fname)
 342 {
 343   FILE* file;
 344   char linebuf[MAXBUF];
 345
 346   log(DEBUG,"readfile: loading %s",fname);
 347   F.clear();
 348   file =  fopen(fname,"r");
 349   if (file)
 350   {
 351         while (!feof(file))
 352         {
 353                 fgets(linebuf,sizeof(linebuf),file);
 354                 linebuf[strlen(linebuf)-1]='\0';
 355                 if (!strcmp(linebuf,""))
 356                 {
 357                         strcpy(linebuf,"  ");
 358                 }
 359                 if (!feof(file))
 360                 {
 361                         F.push_back(linebuf);
 362                 }
 363         }
 364         fclose(file);
 365   }
 366   else
 367   {
 368           log(DEBUG,"readfile: failed to load file: %s",fname);
 369   }
 370   log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 371 }
 372
 373 void ReadConfig(void)
 374 {
 375   char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF];
 376   ConnectClass c;
 377
 378   ConfValue("server","name",0,ServerName);
 379   ConfValue("server","description",0,ServerDesc);
 380   ConfValue("server","network",0,Network);
 381   ConfValue("admin","name",0,AdminName);
 382   ConfValue("admin","email",0,AdminEmail);
 383   ConfValue("admin","nick",0,AdminNick);
 384   ConfValue("files","motd",0,motd);
 385   ConfValue("files","rules",0,rules);
 386   ConfValue("power","diepass",0,diepass);
 387   ConfValue("power","pause",0,pauseval);
 388   ConfValue("power","restartpass",0,restartpass);
 389   ConfValue("options","prefixquit",0,PrefixQuit);
 390   ConfValue("die","value",0,DieValue);
 391   ConfValue("options","loglevel",0,dbg);
 392   if (!strcmp(dbg,"debug"))
 393         LogLevel = DEBUG;
 394   if (!strcmp(dbg,"verbose"))
 395         LogLevel = VERBOSE;
 396   if (!strcmp(dbg,"default"))
 397         LogLevel = DEFAULT;
 398   if (!strcmp(dbg,"sparse"))
 399         LogLevel = SPARSE;
 400   if (!strcmp(dbg,"none"))
 401         LogLevel = NONE;
 402   readfile(MOTD,motd);
 403   log(DEBUG,"Reading message of the day");
 404   readfile(RULES,rules);
 405   log(DEBUG,"Reading connect classes");
 406   Classes.clear();
 407   for (int i = 0; i < ConfValueEnum("connect"); i++)
 408   {
 409         strcpy(Value,"");
 410         ConfValue("connect","allow",i,Value);
 411         ConfValue("connect","timeout",i,timeout);
 412         if (strcmp(Value,""))
 413         {
 414                 strcpy(c.host,Value);
 415                 c.type = CC_ALLOW;
 416                 strcpy(Value,"");
 417                 ConfValue("connect","password",i,Value);
 418                 strcpy(c.pass,Value);
 419                 c.registration_timeout = 90; // default is 2 minutes
 420                 if (atoi(timeout)>0)
 421                 {
 422                         c.registration_timeout = atoi(timeout);
 423                 }
 424                 Classes.push_back(c);
 425                 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s",c.host,c.pass);
 426         }
 427         else
 428         {
 429                 ConfValue("connect","deny",i,Value);
 430                 strcpy(c.host,Value);
 431                 c.type = CC_DENY;
 432                 Classes.push_back(c);
 433                 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 434         }
 435
 436   }
 437 }
 438
 439 void Blocking(int s)
 440 {
 441   int flags;
 442   log(DEBUG,"Blocking: %d",s);
 443   flags = fcntl(s, F_GETFL, 0);
 444   fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
 445 }
 446
 447 void NonBlocking(int s)
 448 {
 449   int flags;
 450   log(DEBUG,"NonBlocking: %d",s);
 451   flags = fcntl(s, F_GETFL, 0);
 452   fcntl(s, F_SETFL, flags | O_NONBLOCK);
 453 }
 454
 455
 456 int CleanAndResolve (char *resolvedHost, const char *unresolvedHost)
 457 {
 458   struct hostent *hostPtr = NULL;
 459   struct in_addr addr;
 460
 461   memset (resolvedHost, '\0',MAXBUF);
 462   if(unresolvedHost == NULL)
 463         return(ERROR);
 464   if ((inet_aton(unresolvedHost,&addr)) == 0)
 465         return(ERROR);
 466   hostPtr = gethostbyaddr ((char *)&addr.s_addr,sizeof(addr.s_addr),AF_INET);
 467   if (hostPtr != NULL)
 468         snprintf(resolvedHost,MAXBUF,"%s",hostPtr->h_name);
 469   else
 470         snprintf(resolvedHost,MAXBUF,"%s",unresolvedHost);
 471   return (TRUE);
 472 }
 473
 474 /* write formatted text to a socket, in same format as printf */
 475
 476 void Write(int sock,char *text, ...)
 477 {
 478   if (!text)
 479   {
 480         log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 481         return;
 482   }
 483   char textbuffer[MAXBUF];
 484   va_list argsPtr;
 485   char tb[MAXBUF];
 486
 487   va_start (argsPtr, text);
 488   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 489   va_end(argsPtr);
 490   sprintf(tb,"%s\r\n",textbuffer);
 491   chop(tb);
 492   write(sock,tb,strlen(tb));
 493   update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 494 }
 495
 496 /* write a server formatted numeric response to a single socket */
 497
 498 void WriteServ(int sock, char* text, ...)
 499 {
 500   if (!text)
 501   {
 502         log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 503         return;
 504   }
 505   char textbuffer[MAXBUF],tb[MAXBUF];
 506   va_list argsPtr;
 507   va_start (argsPtr, text);
 508
 509   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 510   va_end(argsPtr);
 511   sprintf(tb,":%s %s\r\n",ServerName,textbuffer);
 512   chop(tb);
 513   write(sock,tb,strlen(tb));
 514   update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 515 }
 516
 517 /* write text from an originating user to originating user */
 518
 519 void WriteFrom(int sock, userrec *user,char* text, ...)
 520 {
 521   if ((!text) || (!user))
 522   {
 523         log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 524         return;
 525   }
 526   char textbuffer[MAXBUF],tb[MAXBUF];
 527   va_list argsPtr;
 528   va_start (argsPtr, text);
 529
 530   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 531   va_end(argsPtr);
 532   sprintf(tb,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 533   chop(tb);
 534   write(sock,tb,strlen(tb));
 535   update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 536 }
 537
 538 /* write text to an destination user from a source user (e.g. user privmsg) */
 539
 540 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 541 {
 542         if ((!source) || (!dest) || (!data))
 543         {
 544                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 545                 return;
 546         }
 547         char textbuffer[MAXBUF],tb[MAXBUF];
 548         va_list argsPtr;
 549         va_start (argsPtr, data);
 550         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 551         va_end(argsPtr);
 552         chop(tb);
 553         WriteFrom(dest->fd,source,"%s",textbuffer);
 554 }
 555
 556 /* write formatted text from a source user to all users on a channel
 557  * including the sender (NOT for privmsg, notice etc!) */
 558
 559 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 560 {
 561         if ((!Ptr) || (!user) || (!text))
 562         {
 563                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 564                 return;
 565         }
 566         char textbuffer[MAXBUF];
 567         va_list argsPtr;
 568         va_start (argsPtr, text);
 569         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 570         va_end(argsPtr);
 571         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 572         {
 573                 if (has_channel(i->second,Ptr))
 574                 {
 575                         WriteTo(user,i->second,"%s",textbuffer);
 576                 }
 577         }
 578 }
 579
 580 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 581 {
 582         if ((!Ptr) || (!user) || (!text))
 583         {
 584                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 585                 return;
 586         }
 587         char textbuffer[MAXBUF];
 588         va_list argsPtr;
 589         va_start (argsPtr, text);
 590         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 591         va_end(argsPtr);
 592         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 593         {
 594                 if (i->second)
 595                 {
 596                         if (has_channel(i->second,Ptr))
 597                         {
 598                                 WriteServ(i->second->fd,"%s",textbuffer);
 599                         }
 600                 }
 601         }
 602 }
 603
 604
 605 /* write formatted text from a source user to all users on a channel except
 606  * for the sender (for privmsg etc) */
 607
 608 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 609 {
 610         if ((!Ptr) || (!user) || (!text))
 611         {
 612                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 613                 return;
 614         }
 615         char textbuffer[MAXBUF];
 616         va_list argsPtr;
 617         va_start (argsPtr, text);
 618         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 619         va_end(argsPtr);
 620
 621         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 622         {
 623                 if (i->second)
 624                 {
 625                         if (has_channel(i->second,Ptr) && (user != i->second))
 626                         {
 627                                 WriteTo(user,i->second,"%s",textbuffer);
 628                         }
 629                 }
 630         }
 631 }
 632
 633 int c_count(userrec* u)
 634 {
 635         int z = 0;
 636         for (int i =0; i != MAXCHANS; i++)
 637                 if (u->chans[i].channel != NULL)
 638                         z++;
 639         return z;
 640
 641 }
 642
 643 /* return 0 or 1 depending if users u and u2 share one or more common channels
 644  * (used by QUIT, NICK etc which arent channel specific notices) */
 645
 646 int common_channels(userrec *u, userrec *u2)
 647 {
 648         int i = 0;
 649         int z = 0;
 650
 651         if ((!u) || (!u2))
 652         {
 653                 log(DEFAULT,"*** BUG *** common_channels was given an invalid parameter");
 654                 return 0;
 655         }
 656         for (i = 0; i != MAXCHANS; i++)
 657         {
 658                 for (z = 0; z != MAXCHANS; z++)
 659                 {
 660                         if ((u->chans[i].channel != NULL) && (u2->chans[z].channel != NULL))
 661                         {
 662                                 if ((u->chans[i].channel == u2->chans[z].channel) && (u->chans[i].channel) && (u2->chans[z].channel) && (u->registered == 7) && (u2->registered == 7))
 663                                 {
 664                                         if ((c_count(u)) && (c_count(u2)))
 665                                         {
 666                                                 return 1;
 667                                         }
 668                                 }
 669                         }
 670                 }
 671         }
 672         return 0;
 673 }
 674
 675 /* write a formatted string to all users who share at least one common
 676  * channel, including the source user e.g. for use in NICK */
 677
 678 void WriteCommon(userrec *u, char* text, ...)
 679 {
 680         if (!u)
 681         {
 682                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 683                 return;
 684         }
 685
 686         if (u->registered != 7) {
 687                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 688                 return;
 689         }
 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         WriteFrom(u->fd,u,"%s",textbuffer);
 698
 699         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 700         {
 701                 if (i->second)
 702                 {
 703                         if (common_channels(u,i->second) && (i->second != u))
 704                         {
 705                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 706                         }
 707                 }
 708         }
 709 }
 710
 711 /* write a formatted string to all users who share at least one common
 712  * channel, NOT including the source user e.g. for use in QUIT */
 713
 714 void WriteCommonExcept(userrec *u, char* text, ...)
 715 {
 716         if (!u)
 717         {
 718                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 719                 return;
 720         }
 721
 722         if (u->registered != 7) {
 723                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 724                 return;
 725         }
 726
 727         char textbuffer[MAXBUF];
 728         va_list argsPtr;
 729         va_start (argsPtr, text);
 730         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 731         va_end(argsPtr);
 732
 733         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 734         {
 735                 if (i->second)
 736                 {
 737                         if ((common_channels(u,i->second)) && (u != i->second))
 738                         {
 739                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 740                         }
 741                 }
 742         }
 743 }
 744
 745 void WriteOpers(char* text, ...)
 746 {
 747         if (!text)
 748         {
 749                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 750                 return;
 751         }
 752
 753         char textbuffer[MAXBUF];
 754         va_list argsPtr;
 755         va_start (argsPtr, text);
 756         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 757         va_end(argsPtr);
 758
 759         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 760         {
 761                 if (i->second)
 762                 {
 763                         if (strchr(i->second->modes,'o'))
 764                         {
 765                                 if (strchr(i->second->modes,'s'))
 766                                 {
 767                                         // send server notices to all with +s
 768                                         // (TODO: needs SNOMASKs)
 769                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 770                                 }
 771                         }
 772                 }
 773         }
 774 }
 775
 776 void WriteWallOps(userrec *source, char* text, ...)
 777 {
 778         if ((!text) || (!source))
 779         {
 780                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 781                 return;
 782         }
 783
 784         int i = 0;
 785         char textbuffer[MAXBUF];
 786         va_list argsPtr;
 787         va_start (argsPtr, text);
 788         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 789         va_end(argsPtr);
 790
 791         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 792         {
 793                 if (i->second)
 794                 {
 795                         if (strchr(i->second->modes,'w'))
 796                         {
 797                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
 798                         }
 799                 }
 800         }
 801 }
 802
 803 /* convert a string to lowercase. Note following special circumstances
 804  * taken from RFC 1459. Many "official" server branches still hold to this
 805  * rule so i will too;
 806  *
 807  *  Because of IRC's scandanavian origin, the characters {}| are
 808  *  considered to be the lower case equivalents of the characters []\,
 809  *  respectively. This is a critical issue when determining the
 810  *  equivalence of two nicknames.
 811  */
 812
 813 void strlower(char *n)
 814 {
 815         if (!n)
 816         {
 817                 return;
 818         }
 819         for (int i = 0; i != strlen(n); i++)
 820         {
 821                 n[i] = tolower(n[i]);
 822                 if (n[i] == '[')
 823                         n[i] = '{';
 824                 if (n[i] == ']')
 825                         n[i] = '}';
 826                 if (n[i] == '\\')
 827                         n[i] = '|';
 828         }
 829 }
 830
 831 /* verify that a user's ident and nickname is valid */
 832
 833 int isident(const char* n)
 834 {
 835         int i = 0;
 836         char v[MAXBUF];
 837         if (!n)
 838
 839         {
 840                 return 0;
 841         }
 842         if (!strcmp(n,""))
 843         {
 844                 return 0;
 845         }
 846         for (i = 0; i != strlen(n); i++)
 847         {
 848                 if ((n[i] < 33) || (n[i] > 125))
 849                 {
 850                         return 0;
 851                 }
 852                 /* can't occur ANYWHERE in an Ident! */
 853                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
 854                 {
 855                         return 0;
 856                 }
 857         }
 858         return 1;
 859 }
 860
 861
 862 int isnick(const char* n)
 863 {
 864         int i = 0;
 865         char v[MAXBUF];
 866         if (!n)
 867         {
 868                 return 0;
 869         }
 870         if (!strcmp(n,""))
 871         {
 872                 return 0;
 873         }
 874         if (strlen(n) > NICKMAX-1)
 875         {
 876                 return 0;
 877         }
 878         for (i = 0; i != strlen(n); i++)
 879         {
 880                 if ((n[i] < 33) || (n[i] > 125))
 881                 {
 882                         return 0;
 883                 }
 884                 /* can't occur ANYWHERE in a nickname! */
 885                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
 886                 {
 887                         return 0;
 888                 }
 889                 /* can't occur as the first char of a nickname... */
 890                 if ((strchr("0123456789",n[i])) && (!i))
 891                 {
 892                         return 0;
 893                 }
 894         }
 895         return 1;
 896 }
 897
 898 /* Find a user record by nickname and return a pointer to it */
 899
 900 userrec* Find(string nick)
 901 {
 902         user_hash::iterator iter = clientlist.find(nick);
 903
 904         if (iter == clientlist.end())
 905                 /* Couldn't find it */
 906                 return NULL;
 907
 908         return iter->second;
 909 }
 910
 911 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
 912 {
 913         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 914         {
 915                 if (i->second)
 916                 {
 917                         if (i->second->fd == fd)
 918                         {
 919                                 i->second->bytes_out+=data_out;
 920                                 i->second->cmds_out++;
 921                         }
 922                 }
 923         }
 924 }
 925
 926
 927 /* find a channel record by channel name and return a pointer to it */
 928
 929 chanrec* FindChan(const char* chan)
 930 {
 931         if (!chan)
 932         {
 933                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
 934                 return NULL;
 935         }
 936
 937         chan_hash::iterator iter = chanlist.find(chan);
 938
 939         if (iter == chanlist.end())
 940                 /* Couldn't find it */
 941                 return NULL;
 942
 943         return iter->second;
 944 }
 945
 946
 947 void purge_empty_chans(void)
 948 {
 949         int go_again = 1, purge = 0;
 950
 951         while (go_again)
 952         {
 953                 go_again = 0;
 954                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
 955                 {
 956                         if (i->second) {
 957                                 if (!usercount(i->second))
 958                                 {
 959                                         /* kill the record */
 960                                         if (i != chanlist.end())
 961                                         {
 962                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
 963                                                 delete i->second;
 964                                                 chanlist.erase(i);
 965                                                 go_again = 1;
 966                                                 purge++;
 967                                                 break;
 968                                         }
 969                                 }
 970                                 else
 971                                 {
 972                                         log(DEBUG,"skipped purge for %s",i->second->name);
 973                                 }
 974                         }
 975                 }
 976         }
 977         log(DEBUG,"completed channel purge, killed %d",purge);
 978 }
 979
 980 /* returns the status character for a given user on a channel, e.g. @ for op,
 981  * % for halfop etc. If the user has several modes set, the highest mode
 982  * the user has must be returned. */
 983
 984 char* cmode(userrec *user, chanrec *chan)
 985 {
 986         if ((!user) || (!chan))
 987         {
 988                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
 989                 return "";
 990         }
 991
 992         int i;
 993         for (i = 0; i != MAXCHANS; i++)
 994         {
 995                 if ((user->chans[i].channel == chan) && (chan != NULL))
 996                 {
 997                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
 998                         {
 999                                 return "@";
1000                         }
1001                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1002                         {
1003                                 return "%";
1004                         }
1005                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1006                         {
1007                                 return "+";
1008                         }
1009                         return "";
1010                 }
1011         }
1012 }
1013
1014 char scratch[MAXBUF];
1015 char sparam[MAXBUF];
1016
1017 char* chanmodes(chanrec *chan)
1018 {
1019         if (!chan)
1020         {
1021                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1022                 strcpy(scratch,"");
1023                 return scratch;
1024         }
1025
1026         strcpy(scratch,"");
1027         strcpy(sparam,"");
1028         if (chan->noexternal)
1029         {
1030                 strncat(scratch,"n",MAXMODES);
1031         }
1032         if (chan->topiclock)
1033         {
1034                 strncat(scratch,"t",MAXMODES);
1035         }
1036         if (strcmp(chan->key,""))
1037         {
1038                 strncat(scratch,"k",MAXMODES);
1039         }
1040         if (chan->limit)
1041         {
1042                 strncat(scratch,"l",MAXMODES);
1043         }
1044         if (chan->inviteonly)
1045         {
1046                 strncat(scratch,"i",MAXMODES);
1047         }
1048         if (chan->moderated)
1049         {
1050                 strncat(scratch,"m",MAXMODES);
1051         }
1052         if (chan->secret)
1053         {
1054                 strncat(scratch,"s",MAXMODES);
1055         }
1056         if (chan->c_private)
1057         {
1058                 strncat(scratch,"p",MAXMODES);
1059         }
1060         if (strcmp(chan->key,""))
1061         {
1062                 strncat(sparam,chan->key,MAXBUF);
1063         }
1064         if (chan->limit)
1065         {
1066                 char foo[24];
1067                 sprintf(foo," %d",chan->limit);
1068                 strncat(sparam,foo,MAXBUF);
1069         }
1070         if (strlen(chan->custom_modes))
1071         {
1072                 strncat(scratch,chan->custom_modes,MAXMODES);
1073                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1074                 {
1075                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1076                         if (extparam != "")
1077                         {
1078                                 strncat(sparam," ",MAXBUF);
1079                                 strncat(sparam,extparam.c_str(),MAXBUF);
1080                         }
1081                 }
1082         }
1083         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1084         strncat(scratch,sparam,MAXMODES);
1085         return scratch;
1086 }
1087
1088 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1089  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1090  * highest mode the user has must be returned. */
1091
1092 int cstatus(userrec *user, chanrec *chan)
1093 {
1094         if ((!chan) || (!user))
1095         {
1096                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1097                 return 0;
1098         }
1099
1100         int i;
1101         for (i = 0; i != MAXCHANS; i++)
1102         {
1103                 if ((user->chans[i].channel == chan) && (chan != NULL))
1104                 {
1105                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1106                         {
1107                                 return STATUS_OP;
1108                         }
1109                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1110                         {
1111                                 return STATUS_HOP;
1112                         }
1113                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1114                         {
1115                                 return STATUS_VOICE;
1116                         }
1117                         return STATUS_NORMAL;
1118                 }
1119         }
1120 }
1121
1122
1123 /* compile a userlist of a channel into a string, each nick seperated by
1124  * spaces and op, voice etc status shown as @ and + */
1125
1126 void userlist(userrec *user,chanrec *c)
1127 {
1128         if ((!c) || (!user))
1129         {
1130                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1131                 return;
1132         }
1133
1134         sprintf(list,"353 %s = %s :", user->nick, c->name);
1135         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1136         {
1137                 if (has_channel(i->second,c))
1138                 {
1139                         if (isnick(i->second->nick))
1140                         {
1141                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1142                                 {
1143                                         /* user is +i, and source not on the channel, does not show
1144                                          * nick in NAMES list */
1145                                         continue;
1146                                 }
1147                                 strcat(list,cmode(i->second,c));
1148                                 strcat(list,i->second->nick);
1149                                 strcat(list," ");
1150                                 if (strlen(list)>(480-NICKMAX))
1151                                 {
1152                                         /* list overflowed into
1153                                          * multiple numerics */
1154                                         WriteServ(user->fd,list);
1155                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1156                                 }
1157                         }
1158                 }
1159         }
1160         /* if whats left in the list isnt empty, send it */
1161         if (list[strlen(list)-1] != ':')
1162         {
1163                 WriteServ(user->fd,list);
1164         }
1165 }
1166
1167 /* return a count of the users on a specific channel accounting for
1168  * invisible users who won't increase the count. e.g. for /LIST */
1169
1170 int usercount_i(chanrec *c)
1171 {
1172         int i = 0;
1173         int count = 0;
1174
1175         if (!c)
1176         {
1177                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1178                 return 0;
1179         }
1180
1181         strcpy(list,"");
1182         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1183         {
1184                 if (i->second)
1185                 {
1186                         if (has_channel(i->second,c))
1187                         {
1188                                 if (isnick(i->second->nick))
1189                                 {
1190                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1191                                         {
1192                                                 /* user is +i, and source not on the channel, does not show
1193                                                  * nick in NAMES list */
1194                                                 continue;
1195                                         }
1196                                         count++;
1197                                 }
1198                         }
1199                 }
1200         }
1201         log(DEBUG,"usercount_i: %s %d",c->name,count);
1202         return count;
1203 }
1204
1205
1206 int usercount(chanrec *c)
1207 {
1208         int i = 0;
1209         int count = 0;
1210
1211         if (!c)
1212         {
1213                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1214                 return 0;
1215         }
1216
1217         strcpy(list,"");
1218         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1219         {
1220                 if (i->second)
1221                 {
1222                         if (has_channel(i->second,c))
1223                         {
1224                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1225                                 {
1226                                         count++;
1227                                 }
1228                         }
1229                 }
1230         }
1231         log(DEBUG,"usercount: %s %d",c->name,count);
1232         return count;
1233 }
1234
1235
1236 /* add a channel to a user, creating the record for it if needed and linking
1237  * it to the user record */
1238
1239 chanrec* add_channel(userrec *user, char* cname, char* key)
1240 {
1241
1242         if ((!user) || (!cname))
1243         {
1244                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1245                 return 0;
1246         }
1247
1248         int i = 0;
1249         chanrec* Ptr;
1250         int created = 0;
1251
1252         // we MUST declare this wherever we use FOREACH_RESULT
1253         int MOD_RESULT = 0;
1254
1255         if ((!cname) || (!user))
1256         {
1257                 return NULL;
1258         }
1259         if (strlen(cname) > CHANMAX-1)
1260         {
1261                 cname[CHANMAX-1] = '\0';
1262         }
1263
1264         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1265
1266         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1267         {
1268                 return NULL; // already on the channel!
1269         }
1270
1271
1272         if (!FindChan(cname))
1273         {
1274                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1275                 if (MOD_RESULT) {
1276                         return NULL;
1277                 }
1278
1279                 /* create a new one */
1280                 log(DEBUG,"add_channel: creating: %s",cname);
1281                 {
1282                         chanlist[cname] = new chanrec();
1283
1284                         strcpy(chanlist[cname]->name, cname);
1285                         chanlist[cname]->topiclock = 1;
1286                         chanlist[cname]->noexternal = 1;
1287                         chanlist[cname]->created = time(NULL);
1288                         strcpy(chanlist[cname]->topic, "");
1289                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1290                         chanlist[cname]->topicset = 0;
1291                         Ptr = chanlist[cname];
1292                         log(DEBUG,"add_channel: created: %s",cname);
1293                         /* set created to 2 to indicate user
1294                          * is the first in the channel
1295                          * and should be given ops */
1296                         created = 2;
1297                 }
1298         }
1299         else
1300         {
1301                 /* channel exists, just fish out a pointer to its struct */
1302                 Ptr = FindChan(cname);
1303                 if (Ptr)
1304                 {
1305                         FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1306                         if (MOD_RESULT) {
1307                                 return NULL;
1308                         }
1309
1310                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1311                         if (strcmp(Ptr->key,""))
1312                         {
1313                                 log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1314                                 if (!key)
1315                                 {
1316                                         log(DEBUG,"add_channel: no key given in JOIN");
1317                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1318                                         return NULL;
1319                                 }
1320                                 else
1321                                 {
1322                                         log(DEBUG,"key at %p is %s",key,key);
1323                                         if (strcasecmp(key,Ptr->key))
1324                                         {
1325                                                 log(DEBUG,"add_channel: bad key given in JOIN");
1326                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1327                                                 return NULL;
1328                                         }
1329                                 }
1330                         }
1331                         log(DEBUG,"add_channel: no key");
1332
1333                         if (Ptr->inviteonly)
1334                         {
1335                                 log(DEBUG,"add_channel: channel is +i");
1336                                 if (user->IsInvited(Ptr->name))
1337                                 {
1338                                         /* user was invited to channel */
1339                                         /* there may be an optional channel NOTICE here */
1340                                 }
1341                                 else
1342                                 {
1343                                         WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1344                                         return NULL;
1345                                 }
1346                         }
1347                         log(DEBUG,"add_channel: channel is not +i");
1348
1349                         if (Ptr->limit)
1350                         {
1351                                 if (usercount(Ptr) == Ptr->limit)
1352                                 {
1353                                         WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1354                                         return NULL;
1355                                 }
1356                         }
1357
1358                         log(DEBUG,"add_channel: about to walk banlist");
1359
1360                         /* check user against the channel banlist */
1361                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1362                         {
1363                                 if (match(user->GetFullHost(),i->data))
1364                                 {
1365                                         WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1366                                         return NULL;
1367                                 }
1368                         }
1369
1370                         log(DEBUG,"add_channel: bans checked");
1371
1372                         user->RemoveInvite(Ptr->name);
1373
1374                         log(DEBUG,"add_channel: invites removed");
1375
1376                 }
1377                 created = 1;
1378         }
1379
1380         log(DEBUG,"Passed channel checks");
1381
1382         for (i =0; i != MAXCHANS; i++)
1383         {
1384                 if (user->chans[i].channel == NULL)
1385                 {
1386                         log(DEBUG,"Adding into their channel list");
1387
1388                         if (created == 2)
1389                         {
1390                                 /* first user in is given ops */
1391                                 user->chans[i].uc_modes = UCMODE_OP;
1392                         }
1393                         else
1394                         {
1395                                 user->chans[i].uc_modes = 0;
1396                         }
1397                         user->chans[i].channel = Ptr;
1398                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1399
1400                         log(DEBUG,"Sent JOIN to client");
1401
1402                         if (Ptr->topicset)
1403                         {
1404                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1405                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1406                         }
1407                         userlist(user,Ptr);
1408                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1409                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1410                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1411                         FOREACH_MOD OnUserJoin(user,Ptr);
1412                         return Ptr;
1413                 }
1414         }
1415         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1416         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1417         return NULL;
1418 }
1419
1420 /* remove a channel from a users record, and remove the record from memory
1421  * if the channel has become empty */
1422
1423 chanrec* del_channel(userrec *user, char* cname, char* reason)
1424 {
1425         if ((!user) || (!cname))
1426         {
1427                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1428                 return NULL;
1429         }
1430
1431         int i = 0;
1432         chanrec* Ptr;
1433         int created = 0;
1434
1435         if ((!cname) || (!user))
1436         {
1437                 return NULL;
1438         }
1439
1440         Ptr = FindChan(cname);
1441
1442         if (!Ptr)
1443         {
1444                 return NULL;
1445         }
1446
1447         FOREACH_MOD OnUserPart(user,Ptr);
1448         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1449
1450         for (i =0; i != MAXCHANS; i++)
1451         {
1452                 /* zap it from the channel list of the user */
1453                 if (user->chans[i].channel == Ptr)
1454                 {
1455                         if (reason)
1456                         {
1457                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1458                         }
1459                         else
1460                         {
1461                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1462                         }
1463                         user->chans[i].uc_modes = 0;
1464                         user->chans[i].channel = NULL;
1465                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1466                         break;
1467                 }
1468         }
1469
1470         /* if there are no users left on the channel */
1471         if (!usercount(Ptr))
1472         {
1473                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1474
1475                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1476
1477                 /* kill the record */
1478                 if (iter != chanlist.end())
1479                 {
1480                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1481                         delete iter->second;
1482                         chanlist.erase(iter);
1483                 }
1484         }
1485 }
1486
1487
1488 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1489 {
1490         if ((!src) || (!user) || (!Ptr) || (!reason))
1491         {
1492                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1493                 return;
1494         }
1495
1496         int i = 0;
1497         int created = 0;
1498
1499         if ((!Ptr) || (!user) || (!src))
1500         {
1501                 return;
1502         }
1503
1504         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1505
1506         if (!has_channel(user,Ptr))
1507         {
1508                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1509                 return;
1510         }
1511         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1512         {
1513                 if (cstatus(src,Ptr) == STATUS_HOP)
1514                 {
1515                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1516                 }
1517                 else
1518                 {
1519                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator",src->nick, Ptr->name);
1520                 }
1521
1522                 return;
1523         }
1524
1525         for (i =0; i != MAXCHANS; i++)
1526         {
1527                 /* zap it from the channel list of the user */
1528                 if (user->chans[i].channel == Ptr)
1529                 {
1530                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1531                         user->chans[i].uc_modes = 0;
1532                         user->chans[i].channel = NULL;
1533                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1534                         break;
1535                 }
1536         }
1537
1538         /* if there are no users left on the channel */
1539         if (!usercount(Ptr))
1540         {
1541                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1542
1543                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1544
1545                 /* kill the record */
1546                 if (iter != chanlist.end())
1547                 {
1548                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1549                         delete iter->second;
1550                         chanlist.erase(iter);
1551                 }
1552         }
1553 }
1554
1555
1556 /* returns 1 if user u has channel c in their record, 0 if not */
1557
1558 int has_channel(userrec *u, chanrec *c)
1559 {
1560         int i = 0;
1561
1562         if ((!u) || (!c))
1563         {
1564                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1565                 return 0;
1566         }
1567         for (i =0; i != MAXCHANS; i++)
1568         {
1569                 if (u->chans[i].channel == c)
1570                 {
1571                         return 1;
1572                 }
1573         }
1574         return 0;
1575 }
1576
1577 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1578 {
1579         userrec *d;
1580         int i;
1581
1582         if ((!user) || (!dest) || (!chan))
1583         {
1584                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1585                 return 0;
1586         }
1587         if (status != STATUS_OP)
1588         {
1589                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1590                 return 0;
1591         }
1592         else
1593         {
1594                 if (!isnick(dest))
1595                 {
1596                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1597                         return 0;
1598                 }
1599                 d = Find(dest);
1600                 if (!d)
1601                 {
1602                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1603                         return 0;
1604                 }
1605                 else
1606                 {
1607                         for (i = 0; i != MAXCHANS; i++)
1608                         {
1609                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1610                                 {
1611                                         if (d->chans[i].uc_modes & UCMODE_OP)
1612                                         {
1613                                                 /* mode already set on user, dont allow multiple */
1614                                                 return 0;
1615                                         }
1616                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1617                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1618                                 }
1619                         }
1620                 }
1621         }
1622         return 1;
1623 }
1624
1625 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1626 {
1627         userrec *d;
1628         int i;
1629
1630         if ((!user) || (!dest) || (!chan))
1631         {
1632                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1633                 return 0;
1634         }
1635         if (status != STATUS_OP)
1636         {
1637                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1638                 return 0;
1639         }
1640         else
1641         {
1642                 d = Find(dest);
1643                 if (!isnick(dest))
1644                 {
1645                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1646                         return 0;
1647                 }
1648                 if (!d)
1649                 {
1650                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1651                         return 0;
1652                 }
1653                 else
1654                 {
1655                         for (i = 0; i != MAXCHANS; i++)
1656                         {
1657                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1658                                 {
1659                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1660                                         {
1661                                                 /* mode already set on user, dont allow multiple */
1662                                                 return 0;
1663                                         }
1664                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1665                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1666                                 }
1667                         }
1668                 }
1669         }
1670         return 1;
1671 }
1672
1673 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1674 {
1675         userrec *d;
1676         int i;
1677
1678         if ((!user) || (!dest) || (!chan))
1679         {
1680                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1681                 return 0;
1682         }
1683         if (status < STATUS_HOP)
1684         {
1685                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator",user->nick, chan->name);
1686                 return 0;
1687         }
1688         else
1689         {
1690                 d = Find(dest);
1691                 if (!isnick(dest))
1692                 {
1693                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1694                         return 0;
1695                 }
1696                 if (!d)
1697                 {
1698                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1699                         return 0;
1700                 }
1701                 else
1702                 {
1703                         for (i = 0; i != MAXCHANS; i++)
1704                         {
1705                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1706                                 {
1707                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1708                                         {
1709                                                 /* mode already set on user, dont allow multiple */
1710                                                 return 0;
1711                                         }
1712                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1713                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1714                                 }
1715                         }
1716                 }
1717         }
1718         return 1;
1719 }
1720
1721 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1722 {
1723         userrec *d;
1724         int i;
1725
1726         if ((!user) || (!dest) || (!chan))
1727         {
1728                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1729                 return 0;
1730         }
1731         if (status != STATUS_OP)
1732         {
1733                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1734                 return 0;
1735         }
1736         else
1737         {
1738                 d = Find(dest);
1739                 if (!isnick(dest))
1740                 {
1741                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1742                         return 0;
1743                 }
1744                 if (!d)
1745                 {
1746                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1747                         return 0;
1748                 }
1749                 else
1750                 {
1751                         for (i = 0; i != MAXCHANS; i++)
1752                         {
1753                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1754                                 {
1755                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
1756                                         {
1757                                                 /* mode already set on user, dont allow multiple */
1758                                                 return 0;
1759                                         }
1760                                         d->chans[i].uc_modes ^= UCMODE_OP;
1761                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
1762                                 }
1763                         }
1764                 }
1765         }
1766         return 1;
1767 }
1768
1769 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
1770 {
1771         userrec *d;
1772         int i;
1773
1774         if ((!user) || (!dest) || (!chan))
1775         {
1776                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
1777                 return 0;
1778         }
1779         if (status != STATUS_OP)
1780         {
1781                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1782                 return 0;
1783         }
1784         else
1785         {
1786                 d = Find(dest);
1787                 if (!isnick(dest))
1788                 {
1789                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1790                         return 0;
1791                 }
1792                 if (!d)
1793                 {
1794                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1795                         return 0;
1796                 }
1797                 else
1798                 {
1799                         for (i = 0; i != MAXCHANS; i++)
1800                         {
1801                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1802                                 {
1803                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
1804                                         {
1805                                                 /* mode already set on user, dont allow multiple */
1806                                                 return 0;
1807                                         }
1808                                         d->chans[i].uc_modes ^= UCMODE_HOP;
1809                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
1810                                 }
1811                         }
1812                 }
1813         }
1814         return 1;
1815 }
1816
1817 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
1818 {
1819         userrec *d;
1820         int i;
1821
1822         if ((!user) || (!dest) || (!chan))
1823         {
1824                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
1825                 return 0;
1826         }
1827         if (status < STATUS_HOP)
1828         {
1829                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator",user->nick, chan->name);
1830                 return 0;
1831         }
1832         else
1833         {
1834                 d = Find(dest);
1835                 if (!isnick(dest))
1836                 {
1837                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1838                         return 0;
1839                 }
1840                 if (!d)
1841                 {
1842                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1843                         return 0;
1844                 }
1845                 else
1846                 {
1847                         for (i = 0; i != MAXCHANS; i++)
1848                         {
1849                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1850                                 {
1851                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
1852                                         {
1853                                                 /* mode already set on user, dont allow multiple */
1854                                                 return 0;
1855                                         }
1856                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
1857                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
1858                                 }
1859                         }
1860                 }
1861         }
1862         return 1;
1863 }
1864
1865 void TidyBan(char *ban)
1866 {
1867         if (!ban) {
1868                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
1869                 return;
1870         }
1871
1872         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
1873
1874         strcpy(temp,ban);
1875
1876         char* pos_of_pling = strchr(temp,'!');
1877         char* pos_of_at = strchr(temp,'@');
1878
1879         pos_of_pling[0] = '\0';
1880         pos_of_at[0] = '\0';
1881         pos_of_pling++;
1882         pos_of_at++;
1883
1884         strncpy(NICK,temp,NICKMAX);
1885         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
1886         strncpy(HOST,pos_of_at,160);
1887
1888         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
1889 }
1890
1891 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
1892 {
1893         if ((!user) || (!dest) || (!chan)) {
1894                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
1895                 return 0;
1896         }
1897
1898         BanItem b;
1899         if ((!user) || (!dest) || (!chan))
1900                 return 0;
1901         if (strchr(dest,'!')==0)
1902                 return 0;
1903         if (strchr(dest,'@')==0)
1904                 return 0;
1905         for (int i = 0; i < strlen(dest); i++)
1906                 if (dest[i] < 32)
1907                         return 0;
1908         for (int i = 0; i < strlen(dest); i++)
1909                 if (dest[i] > 126)
1910                         return 0;
1911         int c = 0;
1912         for (int i = 0; i < strlen(dest); i++)
1913                 if (dest[i] == '!')
1914                         c++;
1915         if (c>1)
1916                 return 0;
1917         c = 0;
1918         for (int i = 0; i < strlen(dest); i++)
1919                 if (dest[i] == '@')
1920                         c++;
1921         if (c>1)
1922                 return 0;
1923         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
1924
1925         TidyBan(dest);
1926         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
1927         {
1928                 if (!strcasecmp(i->data,dest))
1929                 {
1930                         // dont allow a user to set the same ban twice
1931                         return 0;
1932                 }
1933         }
1934
1935         b.set_time = time(NULL);
1936         strncpy(b.data,dest,MAXBUF);
1937         strncpy(b.set_by,user->nick,NICKMAX);
1938         chan->bans.push_back(b);
1939         return 1;
1940 }
1941
1942 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
1943 {
1944         if ((!user) || (!dest) || (!chan)) {
1945                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
1946                 return 0;
1947         }
1948
1949         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
1950         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
1951         {
1952                 if (!strcasecmp(i->data,dest))
1953                 {
1954                         chan->bans.erase(i);
1955                         return 1;
1956                 }
1957         }
1958         return 0;
1959 }
1960
1961 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode)
1962 {
1963         if ((!parameters) || (!user)) {
1964                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
1965                 return;
1966         }
1967
1968
1969         char modelist[MAXBUF];
1970         char outlist[MAXBUF];
1971         char outstr[MAXBUF];
1972         char outpars[32][MAXBUF];
1973         int param = 2;
1974         int pc = 0;
1975         int ptr = 0;
1976         int mdir = 1;
1977         int r = 0;
1978         bool k_set = false, l_set = false;
1979
1980         if (pcnt < 2)
1981         {
1982                 return;
1983         }
1984
1985         log(DEBUG,"process_modes: start");
1986
1987         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
1988                                         /* parameters[2] onwards are parameters for
1989                                          * modes that require them :) */
1990         strcpy(outlist,"+");
1991         mdir = 1;
1992
1993         log(DEBUG,"process_modes: modelist: %s",modelist);
1994
1995         for (ptr = 0; ptr < strlen(modelist); ptr++)
1996         {
1997                 r = 0;
1998
1999                 {
2000                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2001                         char modechar = modelist[ptr];
2002                         switch (modelist[ptr])
2003                         {
2004                                 case '-':
2005                                         if (mdir != 0)
2006                                         {
2007                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2008                                                 {
2009                                                         outlist[strlen(outlist)-1] = '-';
2010                                                 }
2011                                                 else
2012                                                 {
2013                                                         strcat(outlist,"-");
2014                                                 }
2015                                         }
2016                                         mdir = 0;
2017
2018                                 break;
2019
2020                                 case '+':
2021                                         if (mdir != 1)
2022                                         {
2023                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2024                                                 {
2025                                                         outlist[strlen(outlist)-1] = '+';
2026                                                 }
2027                                                 else
2028                                                 {
2029                                                         strcat(outlist,"+");
2030                                                 }
2031                                         }
2032                                         mdir = 1;
2033                                 break;
2034
2035                                 case 'o':
2036                                         if ((param >= pcnt)) break;
2037                                         if (mdir == 1)
2038                                         {
2039                                                 r = give_ops(user,parameters[param++],chan,status);
2040                                         }
2041                                         else
2042                                         {
2043                                                 r = take_ops(user,parameters[param++],chan,status);
2044                                         }
2045                                         if (r)
2046                                         {
2047                                                 strcat(outlist,"o");
2048                                                 strcpy(outpars[pc++],parameters[param-1]);
2049                                         }
2050                                 break;
2051
2052                                 case 'h':
2053                                         if ((param >= pcnt)) break;
2054                                         if (mdir == 1)
2055                                         {
2056                                                 r = give_hops(user,parameters[param++],chan,status);
2057                                         }
2058                                         else
2059                                         {
2060                                                 r = take_hops(user,parameters[param++],chan,status);
2061                                         }
2062                                         if (r)
2063                                         {
2064                                                 strcat(outlist,"h");
2065                                                 strcpy(outpars[pc++],parameters[param-1]);
2066                                         }
2067                                 break;
2068
2069
2070                                 case 'v':
2071                                         if ((param >= pcnt)) break;
2072                                         if (mdir == 1)
2073                                         {
2074                                                 r = give_voice(user,parameters[param++],chan,status);
2075                                         }
2076                                         else
2077                                         {
2078                                                 r = take_voice(user,parameters[param++],chan,status);
2079                                         }
2080                                         if (r)
2081                                         {
2082                                                 strcat(outlist,"v");
2083                                                 strcpy(outpars[pc++],parameters[param-1]);
2084                                         }
2085                                 break;
2086
2087                                 case 'b':
2088                                         if ((param >= pcnt)) break;
2089                                         if (mdir == 1)
2090                                         {
2091                                                 r = add_ban(user,parameters[param++],chan,status);
2092                                         }
2093                                         else
2094                                         {
2095                                                 r = take_ban(user,parameters[param++],chan,status);
2096                                         }
2097                                         if (r)
2098                                         {
2099                                                 strcat(outlist,"b");
2100                                                 strcpy(outpars[pc++],parameters[param-1]);
2101                                         }
2102                                 break;
2103
2104
2105                                 case 'k':
2106                                         if ((param >= pcnt))
2107                                                 break;
2108
2109                                         if (mdir == 1)
2110                                         {
2111                                                 if (k_set)
2112                                                         break;
2113
2114                                                 if (!strcmp(chan->key,""))
2115                                                 {
2116                                                         strcat(outlist,"k");
2117                                                         char key[MAXBUF];
2118                                                         strcpy(key,parameters[param++]);
2119                                                         if (strlen(key)>32) {
2120                                                                 key[31] = '\0';
2121                                                         }
2122                                                         strcpy(outpars[pc++],key);
2123                                                         strcpy(chan->key,key);
2124                                                         k_set = true;
2125                                                 }
2126                                         }
2127                                         else
2128                                         {
2129                                                 /* checks on -k are case sensitive and only accurate to the
2130                                                    first 32 characters */
2131                                                 char key[MAXBUF];
2132                                                 strcpy(key,parameters[param++]);
2133                                                 if (strlen(key)>32) {
2134                                                         key[31] = '\0';
2135                                                 }
2136                                                 /* only allow -k if correct key given */
2137                                                 if (!strcmp(chan->key,key))
2138                                                 {
2139                                                         strcat(outlist,"k");
2140                                                         strcpy(chan->key,"");
2141                                                         strcpy(outpars[pc++],key);
2142                                                 }
2143                                         }
2144                                 break;
2145
2146                                 case 'l':
2147                                         if (mdir == 0)
2148                                         {
2149                                                 if (chan->limit)
2150                                                 {
2151                                                         strcat(outlist,"l");
2152                                                         chan->limit = 0;
2153                                                 }
2154                                         }
2155
2156                                         if ((param >= pcnt)) break;
2157                                         if (mdir == 1)
2158                                         {
2159                                                 if (l_set)
2160                                                         break;
2161
2162                                                 bool invalid = false;
2163                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2164                                                 {
2165                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2166                                                         {
2167                                                                 invalid = true;
2168                                                         }
2169                                                 }
2170                                                 if (atoi(parameters[param]) < 1)
2171                                                 {
2172                                                         invalid = true;
2173                                                 }
2174
2175                                                 if (invalid)
2176                                                         break;
2177
2178                                                 chan->limit = atoi(parameters[param]);
2179                                                 if (chan->limit)
2180                                                 {
2181                                                         strcat(outlist,"l");
2182                                                         strcpy(outpars[pc++],parameters[param++]);
2183                                                         l_set = true;
2184                                                 }
2185                                         }
2186                                 break;
2187
2188                                 case 'i':
2189                                         if (chan->inviteonly != mdir)
2190                                         {
2191                                                 strcat(outlist,"i");
2192                                         }
2193                                         chan->inviteonly = mdir;
2194                                 break;
2195
2196                                 case 't':
2197                                         if (chan->topiclock != mdir)
2198                                         {
2199                                                 strcat(outlist,"t");
2200                                         }
2201                                         chan->topiclock = mdir;
2202                                 break;
2203
2204                                 case 'n':
2205                                         if (chan->noexternal != mdir)
2206                                         {
2207                                                 strcat(outlist,"n");
2208                                         }
2209                                         chan->noexternal = mdir;
2210                                 break;
2211
2212                                 case 'm':
2213                                         if (chan->moderated != mdir)
2214                                         {
2215                                                 strcat(outlist,"m");
2216                                         }
2217                                         chan->moderated = mdir;
2218                                 break;
2219
2220                                 case 's':
2221                                         if (chan->secret != mdir)
2222                                         {
2223                                                 strcat(outlist,"s");
2224                                                 if (chan->c_private)
2225                                                 {
2226                                                         chan->c_private = 0;
2227                                                         if (mdir)
2228                                                         {
2229                                                                 strcat(outlist,"-p+");
2230                                                         }
2231                                                         else
2232                                                         {
2233                                                                 strcat(outlist,"+p-");
2234                                                         }
2235                                                 }
2236                                         }
2237                                         chan->secret = mdir;
2238                                 break;
2239
2240                                 case 'p':
2241                                         if (chan->c_private != mdir)
2242                                         {
2243                                                 strcat(outlist,"p");
2244                                                 if (chan->secret)
2245                                                 {
2246                                                         chan->secret = 0;
2247                                                         if (mdir)
2248                                                         {
2249                                                                 strcat(outlist,"-s+");
2250                                                         }
2251                                                         else
2252                                                         {
2253                                                                 strcat(outlist,"+s-");
2254                                                         }
2255                                                 }
2256                                         }
2257                                         chan->c_private = mdir;
2258                                 break;
2259
2260                                 default:
2261                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2262                                         string_list p;
2263                                         p.clear();
2264                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2265                                         {
2266                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2267                                                 break;
2268                                         }
2269                                         if (ModeDefined(modechar,MT_CHANNEL))
2270                                         {
2271                                                 log(DEBUG,"A module has claimed this mode");
2272                                                 if (param<pcnt)
2273                                                 {
2274                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2275                                                         {
2276                                                                 p.push_back(parameters[param]);
2277                                                         }
2278                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2279                                                         {
2280                                                                 p.push_back(parameters[param]);
2281                                                         }
2282                                                 }
2283                                                 bool handled = false;
2284                                                 if (param>=pcnt)
2285                                                 {
2286                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2287                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2288                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2289                                                         {
2290                                                                 handled = true;
2291                                                                 param++;
2292                                                         }
2293                                                 }
2294                                                 for (int i = 0; i <= MODCOUNT; i++)
2295                                                 {
2296                                                         if (!handled)
2297                                                         {
2298                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2299                                                                 {
2300                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2301                                                                         char app[] = {modechar, 0};
2302                                                                         if (ptr>0)
2303                                                                         {
2304                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2305                                                                                 {
2306                                                                                         strcat(outlist, app);
2307                                                                                 }
2308                                                                                 else if (!strchr(outlist,modechar))
2309                                                                                 {
2310                                                                                         strcat(outlist, app);
2311                                                                                 }
2312                                                                         }
2313                                                                         chan->SetCustomMode(modechar,mdir);
2314                                                                         // include parameters in output if mode has them
2315                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2316                                                                         {
2317                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2318                                                                                 strcpy(outpars[pc++],parameters[param++]);
2319                                                                         }
2320                                                                         // break, because only one module can handle the mode.
2321                                                                         handled = true;
2322                                                                 }
2323                                                         }
2324                                                 }
2325                                         }
2326                                 break;
2327
2328                         }
2329                 }
2330         }
2331
2332         /* this ensures only the *valid* modes are sent out onto the network */
2333         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2334         {
2335                 outlist[strlen(outlist)-1] = '\0';
2336         }
2337         if (strcmp(outlist,""))
2338         {
2339                 strcpy(outstr,outlist);
2340                 for (ptr = 0; ptr < pc; ptr++)
2341                 {
2342                         strcat(outstr," ");
2343                         strcat(outstr,outpars[ptr]);
2344                 }
2345                 if (servermode)
2346                 {
2347                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2348                 }
2349                 else
2350                 {
2351                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2352                 }
2353         }
2354 }
2355
2356 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2357
2358 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2359 {
2360         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2361         // RFC1459 specified modes
2362         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2363         {
2364                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2365                 return true;
2366         }
2367
2368         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2369         if ((strchr(sourcemodes,'o')) && (!adding))
2370         {
2371                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2372                 return true;
2373         }
2374         else if (umode == 'o')
2375         {
2376                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2377                 return false;
2378         }
2379
2380         // process any module-defined modes that need oper
2381         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2382         {
2383                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2384                 return true;
2385         }
2386         else
2387         if (ModeDefined(umode,MT_CLIENT))
2388         {
2389                 // process any module-defined modes that don't need oper
2390                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2391                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2392                 {
2393                         // no, this mode needs oper, and this user 'aint got what it takes!
2394                         return false;
2395                 }
2396                 return true;
2397         }
2398
2399         // anything else - return false.
2400         log(DEBUG,"umode %c not known by any ruleset",umode);
2401         return false;
2402 }
2403
2404 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2405 {
2406         string_list p;
2407         p.clear();
2408         if (ModeDefined(umode,MT_CLIENT))
2409         {
2410                 for (int i = 0; i <= MODCOUNT; i++)
2411                 {
2412                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2413                         {
2414                                 log(DEBUG,"Module claims umode %c",umode);
2415                                 return true;
2416                         }
2417                 }
2418                 log(DEBUG,"No module claims umode %c",umode);
2419                 return false;
2420         }
2421         else
2422         {
2423                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2424                 return false;
2425         }
2426 }
2427
2428 void handle_mode(char **parameters, int pcnt, userrec *user)
2429 {
2430         chanrec* Ptr;
2431         userrec* dest;
2432         int can_change,i;
2433         int direction = 1;
2434         char outpars[MAXBUF];
2435
2436         dest = Find(parameters[0]);
2437
2438         if ((dest) && (pcnt == 1))
2439         {
2440                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2441                 return;
2442         }
2443
2444         if ((dest) && (pcnt > 1))
2445         {
2446                 char dmodes[MAXBUF];
2447                 strncpy(dmodes,dest->modes,MAXBUF);
2448                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2449
2450                 can_change = 0;
2451                 if (user != dest)
2452                 {
2453                         if (strchr(user->modes,'o'))
2454                         {
2455                                 can_change = 1;
2456                         }
2457                 }
2458                 else
2459                 {
2460                         can_change = 1;
2461                 }
2462                 if (!can_change)
2463                 {
2464                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2465                         return;
2466                 }
2467
2468                 strcpy(outpars,"+");
2469                 direction = 1;
2470
2471                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2472                         return;
2473
2474                 for (i = 0; i < strlen(parameters[1]); i++)
2475                 {
2476                         if (parameters[1][i] == '+')
2477                         {
2478                                 if (direction != 1)
2479                                 {
2480                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2481                                         {
2482                                                 outpars[strlen(outpars)-1] = '+';
2483                                         }
2484                                         else
2485                                         {
2486                                                 strcat(outpars,"+");
2487                                         }
2488                                 }
2489                                 direction = 1;
2490                         }
2491                         else
2492                         if (parameters[1][i] == '-')
2493                         {
2494                                 if (direction != 0)
2495                                 {
2496                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2497                                         {
2498                                                 outpars[strlen(outpars)-1] = '-';
2499                                         }
2500                                         else
2501                                         {
2502                                                 strcat(outpars,"-");
2503                                         }
2504                                 }
2505                                 direction = 0;
2506                         }
2507                         else
2508                         {
2509                                 can_change = 0;
2510                                 if (strchr(user->modes,'o'))
2511                                 {
2512                                         can_change = 1;
2513                                 }
2514                                 else
2515                                 {
2516                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2517                                         {
2518                                                 can_change = 1;
2519                                         }
2520                                 }
2521                                 if (can_change)
2522                                 {
2523                                         if (direction == 1)
2524                                         {
2525                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2526                                                 {
2527                                                         char umode = parameters[1][i];
2528                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2529                                                         {
2530                                                                 dmodes[strlen(dmodes)+1]='\0';
2531                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2532                                                                 outpars[strlen(outpars)+1]='\0';
2533                                                                 outpars[strlen(outpars)] = parameters[1][i];
2534                                                         }
2535                                                 }
2536                                         }
2537                                         else
2538                                         {
2539                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2540                                                 {
2541                                                         char umode = parameters[1][i];
2542                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2543                                                         {
2544                                                                 int q = 0;
2545                                                                 char temp[MAXBUF];
2546                                                                 char moo[MAXBUF];
2547
2548                                                                 outpars[strlen(outpars)+1]='\0';
2549                                                                 outpars[strlen(outpars)] = parameters[1][i];
2550
2551                                                                 strcpy(temp,"");
2552                                                                 for (q = 0; q < strlen(dmodes); q++)
2553                                                                 {
2554                                                                         if (dmodes[q] != parameters[1][i])
2555                                                                         {
2556                                                                                 moo[0] = dmodes[q];
2557                                                                                 moo[1] = '\0';
2558                                                                                 strcat(temp,moo);
2559                                                                         }
2560                                                                 }
2561                                                                 strcpy(dmodes,temp);
2562                                                         }
2563                                                 }
2564                                         }
2565                                 }
2566                         }
2567                 }
2568                 if (strlen(outpars))
2569                 {
2570                         char b[MAXBUF];
2571                         strcpy(b,"");
2572                         int z = 0;
2573                         int i = 0;
2574                         while (i < strlen (outpars))
2575                         {
2576                                 b[z++] = outpars[i++];
2577                                 b[z] = '\0';
2578                                 if (i<strlen(outpars)-1)
2579                                 {
2580                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2581                                         {
2582                                                 // someones playing silly buggers and trying
2583                                                 // to put a +- or -+ into the line...
2584                                                 i++;
2585                                         }
2586                                 }
2587                                 if (i == strlen(outpars)-1)
2588                                 {
2589                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2590                                         {
2591                                                 i++;
2592                                         }
2593                                 }
2594                         }
2595
2596                         z = strlen(b)-1;
2597                         if ((b[z] == '-') || (b[z] == '+'))
2598                                 b[z] == '\0';
2599
2600                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2601                                 return;
2602
2603                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2604
2605                         if (strlen(dmodes)>MAXMODES)
2606                         {
2607                                 dmodes[MAXMODES-1] = '\0';
2608                         }
2609                         log(DEBUG,"Stripped mode line");
2610                         log(DEBUG,"Line dest is now %s",dmodes);
2611                         strncpy(dest->modes,dmodes,MAXMODES);
2612
2613                 }
2614
2615                 return;
2616         }
2617
2618         Ptr = FindChan(parameters[0]);
2619         if (Ptr)
2620         {
2621                 if (pcnt == 1)
2622                 {
2623                         /* just /modes #channel */
2624                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2625                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2626                         return;
2627                 }
2628                 else
2629                 if (pcnt == 2)
2630                 {
2631                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2632                         {
2633
2634                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2635                                 {
2636                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2637                                 }
2638                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2639                         }
2640                 }
2641
2642                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2643                 {
2644                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator",user->nick, Ptr->name);
2645                         return;
2646                 }
2647
2648                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false);
2649         }
2650         else
2651         {
2652                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
2653         }
2654 }
2655
2656
2657
2658
2659 void server_mode(char **parameters, int pcnt, userrec *user)
2660 {
2661         chanrec* Ptr;
2662         userrec* dest;
2663         int can_change,i;
2664         int direction = 1;
2665         char outpars[MAXBUF];
2666
2667         dest = Find(parameters[0]);
2668
2669         // fix: ChroNiCk found this - we cant use this as debug if its null!
2670         if (dest)
2671         {
2672                 log(DEBUG,"server_mode on %s",dest->nick);
2673         }
2674
2675         if ((dest) && (pcnt > 1))
2676         {
2677                 log(DEBUG,"params > 1");
2678
2679                 char dmodes[MAXBUF];
2680                 strncpy(dmodes,dest->modes,MAXBUF);
2681
2682                 strcpy(outpars,"+");
2683                 direction = 1;
2684
2685                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2686                         return;
2687
2688                 for (i = 0; i < strlen(parameters[1]); i++)
2689                 {
2690                         if (parameters[1][i] == '+')
2691                         {
2692                                 if (direction != 1)
2693                                 {
2694                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2695                                         {
2696                                                 outpars[strlen(outpars)-1] = '+';
2697                                         }
2698                                         else
2699                                         {
2700                                                 strcat(outpars,"+");
2701                                         }
2702                                 }
2703                                 direction = 1;
2704                         }
2705                         else
2706                         if (parameters[1][i] == '-')
2707                         {
2708                                 if (direction != 0)
2709                                 {
2710                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2711                                         {
2712                                                 outpars[strlen(outpars)-1] = '-';
2713                                         }
2714                                         else
2715                                         {
2716                                                 strcat(outpars,"-");
2717                                         }
2718                                 }
2719                                 direction = 0;
2720                         }
2721                         else
2722                         {
2723                                 log(DEBUG,"begin mode processing entry");
2724                                 can_change = 1;
2725                                 if (can_change)
2726                                 {
2727                                         if (direction == 1)
2728                                         {
2729                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
2730                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2731                                                 {
2732                                                         char umode = parameters[1][i];
2733                                                         log(DEBUG,"umode %c is an allowed umode",umode);
2734                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2735                                                         {
2736                                                                 dmodes[strlen(dmodes)+1]='\0';
2737                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2738                                                                 outpars[strlen(outpars)+1]='\0';
2739                                                                 outpars[strlen(outpars)] = parameters[1][i];
2740                                                         }
2741                                                 }
2742                                         }
2743                                         else
2744                                         {
2745                                                 // can only remove a mode they already have
2746                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
2747                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2748                                                 {
2749                                                         char umode = parameters[1][i];
2750                                                         log(DEBUG,"umode %c is an allowed umode",umode);
2751                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2752                                                         {
2753                                                                 int q = 0;
2754                                                                 char temp[MAXBUF];
2755                                                                 char moo[MAXBUF];
2756
2757                                                                 outpars[strlen(outpars)+1]='\0';
2758                                                                 outpars[strlen(outpars)] = parameters[1][i];
2759
2760                                                                 strcpy(temp,"");
2761                                                                 for (q = 0; q < strlen(dmodes); q++)
2762                                                                 {
2763                                                                         if (dmodes[q] != parameters[1][i])
2764                                                                         {
2765                                                                                 moo[0] = dmodes[q];
2766                                                                                 moo[1] = '\0';
2767                                                                                 strcat(temp,moo);
2768                                                                         }
2769                                                                 }
2770                                                                 strcpy(dmodes,temp);
2771                                                         }
2772                                                 }
2773                                         }
2774                                 }
2775                         }
2776                 }
2777                 if (strlen(outpars))
2778                 {
2779                         char b[MAXBUF];
2780                         strcpy(b,"");
2781                         int z = 0;
2782                         int i = 0;
2783                         while (i < strlen (outpars))
2784                         {
2785                                 b[z++] = outpars[i++];
2786                                 b[z] = '\0';
2787                                 if (i<strlen(outpars)-1)
2788                                 {
2789                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2790                                         {
2791                                                 // someones playing silly buggers and trying
2792                                                 // to put a +- or -+ into the line...
2793                                                 i++;
2794                                         }
2795                                 }
2796                                 if (i == strlen(outpars)-1)
2797                                 {
2798                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2799                                         {
2800                                                 i++;
2801                                         }
2802                                 }
2803                         }
2804
2805                         z = strlen(b)-1;
2806                         if ((b[z] == '-') || (b[z] == '+'))
2807                                 b[z] == '\0';
2808
2809                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2810                                 return;
2811
2812                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2813
2814                         if (strlen(dmodes)>MAXMODES)
2815                         {
2816                                 dmodes[MAXMODES-1] = '\0';
2817                         }
2818                         log(DEBUG,"Stripped mode line");
2819                         log(DEBUG,"Line dest is now %s",dmodes);
2820                         strncpy(dest->modes,dmodes,MAXMODES);
2821
2822                 }
2823
2824                 return;
2825         }
2826
2827         Ptr = FindChan(parameters[0]);
2828         if (Ptr)
2829         {
2830                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true);
2831         }
2832         else
2833         {
2834                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
2835         }
2836 }
2837
2838
2839 /* This function pokes and hacks at a parameter list like the following:
2840  *
2841  * PART #winbot, #darkgalaxy :m00!
2842  *
2843  * to turn it into a series of individual calls like this:
2844  *
2845  * PART #winbot :m00!
2846  * PART #darkgalaxy :m00!
2847  *
2848  * The seperate calls are sent to a callback function provided by the caller
2849  * (the caller will usually call itself recursively). The callback function
2850  * must be a command handler. Calling this function on a line with no list causes
2851  * no action to be taken. You must provide a starting and ending parameter number
2852  * where the range of the list can be found, useful if you have a terminating
2853  * parameter as above which is actually not part of the list, or parameters
2854  * before the actual list as well. This code is used by many functions which
2855  * can function as "one to list" (see the RFC) */
2856
2857 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
2858 {
2859         char plist[MAXBUF];
2860         char *param;
2861         char *pars[32];
2862         char blog[32][MAXBUF];
2863         char blog2[32][MAXBUF];
2864         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2865         char keystr[MAXBUF];
2866         char moo[MAXBUF];
2867
2868         for (i = 0; i <32; i++)
2869                 strcpy(blog[i],"");
2870
2871         for (i = 0; i <32; i++)
2872                 strcpy(blog2[i],"");
2873
2874         strcpy(moo,"");
2875         for (i = 0; i <10; i++)
2876         {
2877                 if (!parameters[i])
2878                 {
2879                         parameters[i] = moo;
2880                 }
2881         }
2882         if (joins)
2883         {
2884                 if (pcnt > 1) /* we have a key to copy */
2885                 {
2886                         strcpy(keystr,parameters[1]);
2887                 }
2888         }
2889
2890         if (!parameters[start])
2891         {
2892                 return 0;
2893         }
2894         if (!strchr(parameters[start],','))
2895         {
2896                 return 0;
2897         }
2898         strcpy(plist,"");
2899         for (i = start; i <= end; i++)
2900         {
2901                 if (parameters[i])
2902                 {
2903                         strcat(plist,parameters[i]);
2904                 }
2905         }
2906
2907         j = 0;
2908         param = plist;
2909
2910         t = strlen(plist);
2911         for (i = 0; i < t; i++)
2912         {
2913                 if (plist[i] == ',')
2914                 {
2915                         plist[i] = '\0';
2916                         strcpy(blog[j++],param);
2917                         param = plist+i+1;
2918                 }
2919         }
2920         strcpy(blog[j++],param);
2921         total = j;
2922
2923         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2924         {
2925                 strcat(keystr,",");
2926         }
2927
2928         if ((joins) && (keystr))
2929         {
2930                 if (strchr(keystr,','))
2931                 {
2932                         j = 0;
2933                         param = keystr;
2934                         t2 = strlen(keystr);
2935                         for (i = 0; i < t2; i++)
2936                         {
2937                                 if (keystr[i] == ',')
2938                                 {
2939                                         keystr[i] = '\0';
2940                                         strcpy(blog2[j++],param);
2941                                         param = keystr+i+1;
2942                                 }
2943                         }
2944                         strcpy(blog2[j++],param);
2945                         total2 = j;
2946                 }
2947         }
2948
2949         for (j = 0; j < total; j++)
2950         {
2951                 if (blog[j])
2952                 {
2953                         pars[0] = blog[j];
2954                 }
2955                 for (q = end; q < pcnt-1; q++)
2956                 {
2957                         if (parameters[q+1])
2958                         {
2959                                 pars[q-end+1] = parameters[q+1];
2960                         }
2961                 }
2962                 if ((joins) && (parameters[1]))
2963                 {
2964                         if (pcnt > 1)
2965                         {
2966                                 pars[1] = blog2[j];
2967                         }
2968                         else
2969                         {
2970                                 pars[1] = NULL;
2971                         }
2972                 }
2973                 /* repeatedly call the function with the hacked parameter list */
2974                 if ((joins) && (pcnt > 1))
2975                 {
2976                         if (pars[1])
2977                         {
2978                                 // pars[1] already set up and containing key from blog2[j]
2979                                 fn(pars,2,u);
2980                         }
2981                         else
2982                         {
2983                                 pars[1] = parameters[1];
2984                                 fn(pars,2,u);
2985                         }
2986                 }
2987                 else
2988                 {
2989                         fn(pars,pcnt-(end-start),u);
2990                 }
2991         }
2992
2993         return 1;
2994 }
2995
2996
2997 void handle_join(char **parameters, int pcnt, userrec *user)
2998 {
2999         chanrec* Ptr;
3000         int i = 0;
3001
3002         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3003                 return;
3004         if (parameters[0][0] == '#')
3005         {
3006                 Ptr = add_channel(user,parameters[0],parameters[1]);
3007         }
3008 }
3009
3010
3011 void handle_part(char **parameters, int pcnt, userrec *user)
3012 {
3013         chanrec* Ptr;
3014
3015         if (pcnt > 1)
3016         {
3017                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3018                         return;
3019                 del_channel(user,parameters[0],parameters[1]);
3020         }
3021         else
3022         {
3023                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3024                         return;
3025                 del_channel(user,parameters[0],NULL);
3026         }
3027 }
3028
3029 void handle_kick(char **parameters, int pcnt, userrec *user)
3030 {
3031         chanrec* Ptr = FindChan(parameters[0]);
3032         userrec* u   = Find(parameters[1]);
3033
3034         if ((!u) || (!Ptr))
3035         {
3036                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3037                 return;
3038         }
3039
3040         if (!has_channel(u,Ptr))
3041         {
3042                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3043                 return;
3044         }
3045
3046         if (pcnt > 2)
3047         {
3048                 char reason[MAXBUF];
3049                 strncpy(reason,parameters[2],MAXBUF);
3050                 if (strlen(reason)>MAXKICK)
3051                 {
3052                         reason[MAXKICK-1] = '\0';
3053                 }
3054
3055                 kick_channel(user,u,Ptr,reason);
3056         }
3057         else
3058         {
3059                 kick_channel(user,u,Ptr,user->nick);
3060         }
3061 }
3062
3063
3064 void handle_die(char **parameters, int pcnt, userrec *user)
3065 {
3066         log(DEBUG,"die: %s",user->nick);
3067         if (!strcmp(parameters[0],diepass))
3068         {
3069                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3070                 sleep(DieDelay);
3071                 Exit(ERROR);
3072         }
3073         else
3074         {
3075                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3076         }
3077 }
3078
3079 void handle_restart(char **parameters, int pcnt, userrec *user)
3080 {
3081         log(DEBUG,"restart: %s",user->nick);
3082         if (!strcmp(parameters[0],restartpass))
3083         {
3084                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3085                 sleep(DieDelay);
3086                 Exit(ERROR);
3087                 /* Will finish this later when i can be arsed :) */
3088         }
3089         else
3090         {
3091                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3092         }
3093 }
3094
3095
3096 void kill_link(userrec *user,char* reason)
3097 {
3098         user_hash::iterator iter = clientlist.find(user->nick);
3099
3100         if (strlen(reason)>MAXQUIT)
3101         {
3102                 reason[MAXQUIT-1] = '\0';
3103         }
3104
3105         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3106         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3107         log(DEBUG,"closing fd %d",user->fd);
3108
3109         /* bugfix, cant close() a nonblocking socket (sux!) */
3110         if (user->registered == 7) {
3111                 FOREACH_MOD OnUserQuit(user);
3112                 WriteCommonExcept(user,"QUIT :%s",reason);
3113         }
3114
3115         /* push the socket on a stack of sockets due to be closed at the next opportunity */
3116         fd_reap.push_back(user->fd);
3117
3118         bool do_purge = false;
3119
3120         if (user->registered == 7) {
3121                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3122                 AddWhoWas(user);
3123         }
3124
3125         if (iter != clientlist.end())
3126         {
3127                 log(DEBUG,"deleting user hash value %d",iter->second);
3128                 if ((iter->second) && (user->registered == 7)) {
3129                         delete iter->second;
3130                 }
3131                 clientlist.erase(iter);
3132         }
3133
3134         if (user->registered == 7) {
3135                 purge_empty_chans();
3136         }
3137 }
3138
3139
3140 void handle_kill(char **parameters, int pcnt, userrec *user)
3141 {
3142         userrec *u = Find(parameters[0]);
3143         char killreason[MAXBUF];
3144
3145         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3146         if (u)
3147         {
3148                 WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3149                 // :Brain!brain@NetAdmin.chatspike.net KILL [Brain] :homer!NetAdmin.chatspike.net!Brain (test kill)
3150                 WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3151                 sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3152                 kill_link(u,killreason);
3153         }
3154         else
3155         {
3156                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3157         }
3158 }
3159
3160 void handle_summon(char **parameters, int pcnt, userrec *user)
3161 {
3162         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3163 }
3164
3165 void handle_users(char **parameters, int pcnt, userrec *user)
3166 {
3167         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3168 }
3169
3170
3171 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3172
3173 char* Passwd(userrec *user)
3174 {
3175         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3176         {
3177                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3178                 {
3179                         return i->pass;
3180                 }
3181         }
3182         return "";
3183 }
3184
3185 bool IsDenied(userrec *user)
3186 {
3187         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3188         {
3189                 if (match(user->host,i->host) && (i->type == CC_DENY))
3190                 {
3191                         return true;
3192                 }
3193         }
3194         return false;
3195 }
3196
3197
3198 void handle_pass(char **parameters, int pcnt, userrec *user)
3199 {
3200         if (!strcasecmp(parameters[0],Passwd(user)))
3201         {
3202                 user->haspassed = true;
3203         }
3204 }
3205
3206 void handle_invite(char **parameters, int pcnt, userrec *user)
3207 {
3208         userrec* u = Find(parameters[0]);
3209         chanrec* c = FindChan(parameters[1]);
3210
3211         if ((!c) || (!u))
3212         {
3213                 if (!c)
3214                 {
3215                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[1]);
3216                 }
3217                 else
3218                 {
3219                         if (c->inviteonly)
3220                         {
3221                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
3222                         }
3223                 }
3224
3225                 return;
3226         }
3227
3228         if (c->inviteonly)
3229         {
3230                 if (cstatus(user,c) < STATUS_HOP)
3231                 {
3232                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator",user->nick, c->name);
3233                         return;
3234                 }
3235
3236                 u->InviteTo(c->name);
3237                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
3238                 WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
3239         }
3240 }
3241
3242 void handle_topic(char **parameters, int pcnt, userrec *user)
3243 {
3244         chanrec* Ptr;
3245
3246         if (pcnt == 1)
3247         {
3248                 if (strlen(parameters[0]) <= CHANMAX)
3249                 {
3250                         Ptr = FindChan(parameters[0]);
3251                         if (Ptr)
3252                         {
3253                                 if (Ptr->topicset)
3254                                 {
3255                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
3256                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
3257                                 }
3258                                 else
3259                                 {
3260                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
3261                                 }
3262                         }
3263                         else
3264                         {
3265                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3266                         }
3267                 }
3268                 return;
3269         }
3270         else if (pcnt>1)
3271         {
3272                 if (strlen(parameters[0]) <= CHANMAX)
3273                 {
3274                         Ptr = FindChan(parameters[0]);
3275                         if (Ptr)
3276                         {
3277                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
3278                                 {
3279                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator", user->nick, Ptr->name);
3280                                         return;
3281                                 }
3282
3283                                 char topic[MAXBUF];
3284                                 strncpy(topic,parameters[1],MAXBUF);
3285                                 if (strlen(topic)>MAXTOPIC)
3286                                 {
3287                                         topic[MAXTOPIC-1] = '\0';
3288                                 }
3289
3290                                 strcpy(Ptr->topic,topic);
3291                                 strcpy(Ptr->setby,user->nick);
3292                                 Ptr->topicset = time(NULL);
3293                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
3294                         }
3295                         else
3296                         {
3297                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3298                         }
3299                 }
3300         }
3301 }
3302
3303 /* sends out an error notice to all connected clients (not to be used
3304  * lightly!) */
3305
3306 void send_error(char *s)
3307 {
3308         log(DEBUG,"send_error: %s",s);
3309         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3310         {
3311                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
3312         }
3313 }
3314
3315 void Error(int status)
3316 {
3317         signal (SIGALRM, SIG_IGN);
3318         signal (SIGPIPE, SIG_IGN);
3319         signal (SIGTERM, SIG_IGN);
3320         signal (SIGABRT, SIG_IGN);
3321         signal (SIGSEGV, SIG_IGN);
3322         signal (SIGURG, SIG_IGN);
3323         signal (SIGKILL, SIG_IGN);
3324         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
3325         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
3326         exit(status);
3327 }
3328
3329 int main (int argc, char *argv[])
3330 {
3331         Start();
3332         log(DEBUG,"*** InspIRCd starting up!");
3333         if (!FileExists(CONFIG_FILE))
3334         {
3335                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
3336                 log(DEBUG,"main: no config");
3337                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
3338                 Exit(ERROR);
3339         }
3340         if (argc > 1) {
3341                 if (!strcmp(argv[1],"-nofork")) {
3342                         nofork = true;
3343                 }
3344         }
3345         if (InspIRCd() == ERROR)
3346         {
3347                 log(DEBUG,"main: daemon function bailed");
3348                 printf("ERROR: could not initialise. Shutting down.\n");
3349                 Exit(ERROR);
3350         }
3351         Exit(TRUE);
3352         return 0;
3353 }
3354
3355 template<typename T> inline string ConvToStr(const T &in)
3356 {
3357         stringstream tmp;
3358         if (!(tmp << in)) return string();
3359         return tmp.str();
3360 }
3361
3362 /* re-allocates a nick in the user_hash after they change nicknames,
3363  * returns a pointer to the new user as it may have moved */
3364
3365 userrec* ReHashNick(char* Old, char* New)
3366 {
3367         user_hash::iterator newnick;
3368         user_hash::iterator oldnick = clientlist.find(Old);
3369
3370         log(DEBUG,"ReHashNick: %s %s",Old,New);
3371
3372         if (!strcasecmp(Old,New))
3373         {
3374                 log(DEBUG,"old nick is new nick, skipping");
3375                 return oldnick->second;
3376         }
3377
3378         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
3379
3380         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
3381
3382         clientlist[New] = new userrec();
3383         clientlist[New] = oldnick->second;
3384         /*delete oldnick->second; */
3385         clientlist.erase(oldnick);
3386
3387         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
3388
3389         return clientlist[New];
3390 }
3391
3392 /* adds or updates an entry in the whowas list */
3393 void AddWhoWas(userrec* u)
3394 {
3395         user_hash::iterator iter = whowas.find(u->nick);
3396         userrec *a = new userrec();
3397         strcpy(a->nick,u->nick);
3398         strcpy(a->ident,u->ident);
3399         strcpy(a->dhost,u->dhost);
3400         strcpy(a->host,u->host);
3401         strcpy(a->fullname,u->fullname);
3402         strcpy(a->server,u->server);
3403         a->signon = u->signon;
3404
3405         /* MAX_WHOWAS:   max number of /WHOWAS items
3406          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
3407          *               can be replaced by a newer one
3408          */
3409
3410         if (iter == whowas.end())
3411         {
3412                 if (whowas.size() == WHOWAS_MAX)
3413                 {
3414                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
3415                         {
3416                                 // 3600 seconds in an hour ;)
3417                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
3418                                 {
3419                                         delete i->second;
3420                                         i->second = a;
3421                                         log(DEBUG,"added WHOWAS entry, purged an old record");
3422                                         return;
3423                                 }
3424                         }
3425                 }
3426                 else
3427                 {
3428                         log(DEBUG,"added fresh WHOWAS entry");
3429                         whowas[a->nick] = a;
3430                 }
3431         }
3432         else
3433         {
3434                 log(DEBUG,"updated WHOWAS entry");
3435                 delete iter->second;
3436                 iter->second = a;
3437         }
3438 }
3439
3440
3441 /* add a client connection to the sockets list */
3442 void AddClient(int socket, char* host, int port, bool iscached)
3443 {
3444         int i;
3445         int blocking = 1;
3446         char resolved[MAXBUF];
3447         string tempnick;
3448         char tn2[MAXBUF];
3449         user_hash::iterator iter;
3450
3451         tempnick = ConvToStr(socket) + "-unknown";
3452         sprintf(tn2,"%d-unknown",socket);
3453
3454         iter = clientlist.find(tempnick);
3455
3456         if (iter != clientlist.end()) return;
3457
3458         /*
3459          * It is OK to access the value here this way since we know
3460          * it exists, we just created it above.
3461          *
3462          * At NO other time should you access a value in a map or a
3463          * hash_map this way.
3464          */
3465         clientlist[tempnick] = new userrec();
3466
3467         NonBlocking(socket);
3468         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
3469
3470
3471         clientlist[tempnick]->fd = socket;
3472         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
3473         strncpy(clientlist[tempnick]->host, host,160);
3474         strncpy(clientlist[tempnick]->dhost, host,160);
3475         strncpy(clientlist[tempnick]->server, ServerName,256);
3476         clientlist[tempnick]->registered = 0;
3477         clientlist[tempnick]->signon = time(NULL);
3478         clientlist[tempnick]->nping = time(NULL)+240;
3479         clientlist[tempnick]->lastping = 1;
3480         clientlist[tempnick]->port = port;
3481
3482         if (iscached)
3483         {
3484                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
3485         }
3486         else
3487         {
3488                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
3489         }
3490
3491         if (clientlist.size() == MAXCLIENTS)
3492                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
3493 }
3494
3495 void handle_names(char **parameters, int pcnt, userrec *user)
3496 {
3497         chanrec* c;
3498
3499         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
3500                 return;
3501         c = FindChan(parameters[0]);
3502         if (c)
3503         {
3504                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
3505                 userlist(user,c);
3506                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
3507         }
3508         else
3509         {
3510                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3511         }
3512 }
3513
3514
3515 void handle_privmsg(char **parameters, int pcnt, userrec *user)
3516 {
3517         userrec *dest;
3518         chanrec *chan;
3519
3520         user->idle_lastmsg = time(NULL);
3521
3522         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
3523                 return;
3524         if (parameters[0][0] == '#')
3525         {
3526                 chan = FindChan(parameters[0]);
3527                 if (chan)
3528                 {
3529                         if ((chan->noexternal) && (!has_channel(user,chan)))
3530                         {
3531                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
3532                                 return;
3533                         }
3534                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
3535                         {
3536                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
3537                                 return;
3538                         }
3539                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
3540                 }
3541                 else
3542                 {
3543                         /* no such nick/channel */
3544                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3545                 }
3546                 return;
3547         }
3548
3549         dest = Find(parameters[0]);
3550         if (dest)
3551         {
3552                 if (strcmp(dest->awaymsg,""))
3553                 {
3554                         /* auto respond with aweh msg */
3555                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
3556                 }
3557                 WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
3558         }
3559         else
3560         {
3561                 /* no such nick/channel */
3562                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3563         }
3564 }
3565
3566 void handle_notice(char **parameters, int pcnt, userrec *user)
3567 {
3568         userrec *dest;
3569         chanrec *chan;
3570
3571         user->idle_lastmsg = time(NULL);
3572
3573         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
3574                 return;
3575         if (parameters[0][0] == '#')
3576         {
3577                 chan = FindChan(parameters[0]);
3578                 if (chan)
3579                 {
3580                         if ((chan->noexternal) && (!has_channel(user,chan)))
3581                         {
3582                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
3583                                 return;
3584                         }
3585                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
3586                         {
3587                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
3588                                 return;
3589                         }
3590                         WriteChannel(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
3591                 }
3592                 else
3593                 {
3594                         /* no such nick/channel */
3595                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3596                 }
3597                 return;
3598         }
3599
3600         dest = Find(parameters[0]);
3601         if (dest)
3602         {
3603                 WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
3604         }
3605         else
3606         {
3607                 /* no such nick/channel */
3608                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3609         }
3610 }
3611
3612 char lst[MAXBUF];
3613
3614 char* chlist(userrec *user)
3615 {
3616         int i = 0;
3617         char cmp[MAXBUF];
3618
3619         log(DEBUG,"chlist: %s",user->nick);
3620         strcpy(lst,"");
3621         if (!user)
3622         {
3623                 return lst;
3624         }
3625         for (i = 0; i != MAXCHANS; i++)
3626         {
3627                 if (user->chans[i].channel != NULL)
3628                 {
3629                         if (user->chans[i].channel->name)
3630                         {
3631                                 strcpy(cmp,user->chans[i].channel->name);
3632                                 strcat(cmp," ");
3633                                 if (!strstr(lst,cmp))
3634                                 {
3635                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
3636                                         {
3637                                                 strcat(lst,cmode(user,user->chans[i].channel));
3638                                                 strcat(lst,user->chans[i].channel->name);
3639                                                 strcat(lst," ");
3640                                         }
3641                                 }
3642                         }
3643                 }
3644         }
3645         return lst;
3646 }
3647
3648 void handle_info(char **parameters, int pcnt, userrec *user)
3649 {
3650         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
3651         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
3652         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
3653         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
3654 }
3655
3656 void handle_time(char **parameters, int pcnt, userrec *user)
3657 {
3658         time_t rawtime;
3659         struct tm * timeinfo;
3660
3661         time ( &rawtime );
3662         timeinfo = localtime ( &rawtime );
3663         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
3664
3665 }
3666
3667 void handle_whois(char **parameters, int pcnt, userrec *user)
3668 {
3669         userrec *dest;
3670         char *t;
3671
3672         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
3673                 return;
3674         dest = Find(parameters[0]);
3675         if (dest)
3676         {
3677                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
3678                 if (dest->registered == 7)
3679                 {
3680                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
3681                         if ((user == dest) || (strchr(user->modes,'o')))
3682                         {
3683                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
3684                         }
3685                         if (strcmp(chlist(dest),""))
3686                         {
3687                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
3688                         }
3689                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
3690                         if (strcmp(dest->awaymsg,""))
3691                         {
3692                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
3693                         }
3694                         if (strchr(dest->modes,'o'))
3695                         {
3696                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
3697                         }
3698                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
3699                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
3700
3701                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
3702                 }
3703                 else
3704                 {
3705                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3706                 }
3707         }
3708         else
3709         {
3710                 /* no such nick/channel */
3711                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3712         }
3713 }
3714
3715 void handle_quit(char **parameters, int pcnt, userrec *user)
3716 {
3717         user_hash::iterator iter = clientlist.find(user->nick);
3718         char* reason;
3719
3720         if (user->registered == 7)
3721         {
3722                 /* theres more to do here, but for now just close the socket */
3723                 if (pcnt == 1)
3724                 {
3725                         if (parameters[0][0] == ':')
3726                         {
3727                                 *parameters[0]++;
3728                         }
3729                         reason = parameters[0];
3730
3731                         if (strlen(reason)>MAXQUIT)
3732                         {
3733                                 reason[MAXQUIT-1] = '\0';
3734                         }
3735
3736                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
3737                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
3738                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
3739                 }
3740                 else
3741                 {
3742                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
3743                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
3744                         WriteCommonExcept(user,"QUIT :Client exited");
3745                 }
3746                 FOREACH_MOD OnUserQuit(user);
3747                 AddWhoWas(user);
3748         }
3749
3750         /* push the socket on a stack of sockets due to be closed at the next opportunity */
3751         fd_reap.push_back(user->fd);
3752
3753         if (iter != clientlist.end())
3754         {
3755                 log(DEBUG,"deleting user hash value %d",iter->second);
3756                 if ((iter->second) && (user->registered == 7)) {
3757                         delete iter->second;
3758                 }
3759                 clientlist.erase(iter);
3760         }
3761
3762         if (user->registered == 7) {
3763                 purge_empty_chans();
3764         }
3765 }
3766
3767 void handle_who(char **parameters, int pcnt, userrec *user)
3768 {
3769         chanrec* Ptr = NULL;
3770
3771         /* theres more to do here, but for now just close the socket */
3772         if (pcnt == 1)
3773         {
3774                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
3775                 {
3776                         if (user->chans[0].channel)
3777                         {
3778                                 Ptr = user->chans[0].channel;
3779                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3780                                 {
3781                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
3782                                         {
3783                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, ServerName, i->second->nick, i->second->fullname);
3784                                         }
3785                                 }
3786                         }
3787                         if (Ptr)
3788                         {
3789                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
3790                         }
3791                         else
3792                         {
3793                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
3794                         }
3795                         return;
3796                 }
3797                 if (parameters[0][0] = '#')
3798                 {
3799                         Ptr = FindChan(parameters[0]);
3800                         if (Ptr)
3801                         {
3802                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3803                                 {
3804                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
3805                                         {
3806                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, ServerName, i->second->nick, i->second->fullname);
3807                                         }
3808                                 }
3809                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
3810                         }
3811                         else
3812                         {
3813                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3814                         }
3815                 }
3816         }
3817         if (pcnt == 2)
3818         {
3819                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
3820                 {
3821                         Ptr = user->chans[0].channel;
3822                         printf(user->chans[0].channel->name);
3823                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3824                         {
3825                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
3826                                 {
3827                                         if (strchr(i->second->modes,'o'))
3828                                         {
3829                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, ServerName, i->second->nick, i->second->fullname);
3830                                         }
3831                                 }
3832                         }
3833                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
3834                         return;
3835                 }
3836         }
3837 }
3838
3839 void handle_wallops(char **parameters, int pcnt, userrec *user)
3840 {
3841         WriteWallOps(user,"%s",parameters[0]);
3842 }
3843
3844 void handle_list(char **parameters, int pcnt, userrec *user)
3845 {
3846         chanrec* Ptr;
3847
3848         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
3849         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
3850         {
3851                 if ((!i->second->c_private) && (!i->second->secret))
3852                 {
3853                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
3854                 }
3855         }
3856         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
3857 }
3858
3859
3860 void handle_rehash(char **parameters, int pcnt, userrec *user)
3861 {
3862         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CONFIG_FILE);
3863         ReadConfig();
3864         FOREACH_MOD OnRehash();
3865         WriteOpers("%s is rehashing config file %s",user->nick,CONFIG_FILE);
3866 }
3867
3868
3869 int usercnt(void)
3870 {
3871         return clientlist.size();
3872 }
3873
3874 int usercount_invisible(void)
3875 {
3876         int c = 0;
3877
3878         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3879         {
3880                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
3881         }
3882         return c;
3883 }
3884
3885 int usercount_opers(void)
3886 {
3887         int c = 0;
3888
3889         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3890         {
3891                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
3892         }
3893         return c;
3894 }
3895
3896 int usercount_unknown(void)
3897 {
3898         int c = 0;
3899
3900         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3901         {
3902                 if ((i->second->fd) && (i->second->registered != 7))
3903                         c++;
3904         }
3905         return c;
3906 }
3907
3908 int chancount(void)
3909 {
3910         return chanlist.size();
3911 }
3912
3913 int servercount(void)
3914 {
3915         return 1;
3916 }
3917
3918 void handle_lusers(char **parameters, int pcnt, userrec *user)
3919 {
3920         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
3921         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
3922         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
3923         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
3924         WriteServ(user->fd,"254 %s :I have %d clients and 0 servers",user->nick,usercnt());
3925 }
3926
3927 void handle_admin(char **parameters, int pcnt, userrec *user)
3928 {
3929         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
3930         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
3931         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
3932         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
3933 }
3934
3935 void ShowMOTD(userrec *user)
3936 {
3937         if (!MOTD.size())
3938         {
3939                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
3940                 return;
3941         }
3942         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
3943         for (int i = 0; i != MOTD.size(); i++)
3944         {
3945                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
3946         }
3947         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
3948 }
3949
3950 void ShowRULES(userrec *user)
3951 {
3952         if (!RULES.size())
3953         {
3954                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
3955                 return;
3956         }
3957         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
3958         for (int i = 0; i != RULES.size(); i++)
3959         {
3960                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
3961         }
3962         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
3963 }
3964
3965 /* shows the message of the day, and any other on-logon stuff */
3966 void ConnectUser(userrec *user)
3967 {
3968         user->registered = 7;
3969         user->idle_lastmsg = time(NULL);
3970         log(DEBUG,"ConnectUser: %s",user->nick);
3971
3972         if (strcmp(Passwd(user),"") && (!user->haspassed))
3973         {
3974                 kill_link(user,"Invalid password");
3975                 return;
3976         }
3977         if (IsDenied(user))
3978         {
3979                 kill_link(user,"Unauthorised connection");
3980                 return;
3981         }
3982
3983         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
3984         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
3985         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
3986         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
3987         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
3988         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);
3989         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);
3990         ShowMOTD(user);
3991         FOREACH_MOD OnUserConnect(user);
3992         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
3993 }
3994
3995 void handle_version(char **parameters, int pcnt, userrec *user)
3996 {
3997         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Id$",ServerName,SYSTEM);
3998 }
3999
4000 void handle_ping(char **parameters, int pcnt, userrec *user)
4001 {
4002         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
4003 }
4004
4005 void handle_pong(char **parameters, int pcnt, userrec *user)
4006 {
4007         // set the user as alive so they survive to next ping
4008         user->lastping = 1;
4009 }
4010
4011 void handle_motd(char **parameters, int pcnt, userrec *user)
4012 {
4013         ShowMOTD(user);
4014 }
4015
4016 void handle_rules(char **parameters, int pcnt, userrec *user)
4017 {
4018         ShowRULES(user);
4019 }
4020
4021 void handle_user(char **parameters, int pcnt, userrec *user)
4022 {
4023         if (user->registered < 3)
4024         {
4025                 if (isident(parameters[0]) == 0) {
4026                         // This kinda Sucks, According to the RFC thou, its either this,
4027                         // or "You have already registered" :p -- Craig
4028                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
4029                 }
4030                 else {
4031                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
4032                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
4033                         strncat(user->ident,parameters[0],IDENTMAX);
4034                         strncpy(user->fullname,parameters[3],128);
4035                         user->registered = (user->registered | 1);
4036                 }
4037         }
4038         else
4039         {
4040                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4041                 return;
4042         }
4043         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
4044         if (user->registered == 3)
4045         {
4046                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
4047                 ConnectUser(user);
4048         }
4049 }
4050
4051 void handle_userhost(char **parameters, int pcnt, userrec *user)
4052 {
4053         char Return[MAXBUF],junk[MAXBUF];
4054         sprintf(Return,"302 %s :",user->nick);
4055         for (int i = 0; i < pcnt; i++)
4056         {
4057                 userrec *u = Find(parameters[i]);
4058                 if (u)
4059                 {
4060                         if (strchr(u->modes,'o'))
4061                         {
4062                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
4063                                 strcat(Return,junk);
4064                         }
4065                         else
4066                         {
4067                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
4068                                 strcat(Return,junk);
4069                         }
4070                 }
4071         }
4072         WriteServ(user->fd,Return);
4073 }
4074
4075
4076 void handle_ison(char **parameters, int pcnt, userrec *user)
4077 {
4078         char Return[MAXBUF];
4079         sprintf(Return,"303 %s :",user->nick);
4080         for (int i = 0; i < pcnt; i++)
4081         {
4082                 userrec *u = Find(parameters[i]);
4083                 if (u)
4084                 {
4085                         strcat(Return,u->nick);
4086                         strcat(Return," ");
4087                 }
4088         }
4089         WriteServ(user->fd,Return);
4090 }
4091
4092
4093 void handle_away(char **parameters, int pcnt, userrec *user)
4094 {
4095         if (pcnt)
4096         {
4097                 strcpy(user->awaymsg,parameters[0]);
4098                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
4099         }
4100         else
4101         {
4102                 strcpy(user->awaymsg,"");
4103                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
4104         }
4105 }
4106
4107 void handle_whowas(char **parameters, int pcnt, userrec* user)
4108 {
4109         user_hash::iterator i = whowas.find(parameters[0]);
4110
4111         if (i == whowas.end())
4112         {
4113                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
4114                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
4115         }
4116         else
4117         {
4118                 time_t rawtime = i->second->signon;
4119                 tm *timeinfo;
4120                 char b[MAXBUF];
4121
4122                 timeinfo = localtime(&rawtime);
4123                 strcpy(b,asctime(timeinfo));
4124                 b[strlen(b)-1] = '\0';
4125
4126                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
4127                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
4128                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
4129         }
4130
4131 }
4132
4133 void handle_trace(char **parameters, int pcnt, userrec *user)
4134 {
4135         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
4136         {
4137                 if (i->second)
4138                 {
4139                         if (isnick(i->second->nick))
4140                         {
4141                                 if (strchr(i->second->modes,'o'))
4142                                 {
4143                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
4144                                 }
4145                                 else
4146                                 {
4147                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
4148                                 }
4149                         }
4150                         else
4151                         {
4152                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
4153                         }
4154                 }
4155         }
4156 }
4157
4158 void handle_modules(char **parameters, int pcnt, userrec *user)
4159 {
4160         for (int i = 0; i < module_names.size(); i++)
4161         {
4162                         Version V = modules[i]->GetVersion();
4163                         WriteServ(user->fd,"900 0x%08lx %d.%d.%d.%d :%s",modules[i],V.Major,V.Minor,V.Revision,V.Build,module_names[i].c_str());
4164         }
4165 }
4166
4167 void handle_stats(char **parameters, int pcnt, userrec *user)
4168 {
4169         if (pcnt != 1)
4170         {
4171                 return;
4172         }
4173         if (strlen(parameters[0])>1)
4174         {
4175                 /* make the stats query 1 character long */
4176                 parameters[0][1] = '\0';
4177         }
4178
4179         /* stats m (list number of times each command has been used, plus bytecount) */
4180         if (!strcasecmp(parameters[0],"m"))
4181         {
4182                 for (int i = 0; i < cmdlist.size(); i++)
4183                 {
4184                         if (cmdlist[i].handler_function)
4185                         {
4186                                 if (cmdlist[i].use_count)
4187                                 {
4188                                         /* RPL_STATSCOMMANDS */
4189                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
4190                                 }
4191                         }
4192                 }
4193
4194         }
4195
4196         /* stats z (debug and memory info) */
4197         if (!strcasecmp(parameters[0],"z"))
4198         {
4199                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
4200                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
4201                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
4202                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
4203                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
4204                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
4205                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
4206                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
4207         }
4208
4209         /* stats o */
4210         if (!strcasecmp(parameters[0],"o"))
4211         {
4212                 for (int i = 0; i < ConfValueEnum("oper"); i++)
4213                 {
4214                         char LoginName[MAXBUF];
4215                         char HostName[MAXBUF];
4216                         char OperType[MAXBUF];
4217                         ConfValue("oper","name",i,LoginName);
4218                         ConfValue("oper","host",i,HostName);
4219                         ConfValue("oper","type",i,OperType);
4220                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
4221                 }
4222         }
4223
4224         /* stats l (show user I/O stats) */
4225         if (!strcasecmp(parameters[0],"l"))
4226         {
4227                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
4228                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
4229                 {
4230                         if (isnick(i->second->nick))
4231                         {
4232                                 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);
4233                         }
4234                         else
4235                         {
4236                                 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);
4237                         }
4238
4239                 }
4240         }
4241
4242         /* stats u (show server uptime) */
4243         if (!strcasecmp(parameters[0],"u"))
4244         {
4245                 time_t current_time = 0;
4246                 current_time = time(NULL);
4247                 time_t server_uptime = current_time - startup_time;
4248                 struct tm* stime;
4249                 stime = gmtime(&server_uptime);
4250                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
4251                  * Craig suggested this, and it seemed a good idea so in it went */
4252                 if (stime->tm_year > 70)
4253                 {
4254                         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);
4255                 }
4256                 else
4257                 {
4258                         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);
4259                 }
4260         }
4261
4262         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
4263         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
4264
4265 }
4266
4267 void handle_connect(char **parameters, int pcnt, userrec *user)
4268 {
4269         char Link_ServerName[1024];
4270         char Link_IPAddr[1024];
4271         char Link_Port[1024];
4272         char Link_Pass[1024];
4273         int LinkPort;
4274         bool found = false;
4275
4276         for (int i = 0; i < ConfValueEnum("link"); i++)
4277         {
4278                 ConfValue("link","name",i,Link_ServerName);
4279                 ConfValue("link","ipaddr",i,Link_IPAddr);
4280                 ConfValue("link","port",i,Link_Port);
4281                 ConfValue("link","sendpass",i,Link_Pass);
4282                 log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
4283                 LinkPort = atoi(Link_Port);
4284                 if (match(Link_ServerName,parameters[0])) {
4285                         found = true;
4286                 }
4287         }
4288
4289         if (!found) {
4290                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
4291                 return;
4292         }
4293
4294         // TODO: Perform a check here to stop a server being linked twice!
4295
4296         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
4297
4298         if (me[defaultRoute])
4299         {
4300
4301                 // at this point parameters[0] is an ip in a string.
4302                 // TODO: Look this up from the <link> blocks instead!
4303                 for (int j = 0; j < 255; j++) {
4304                         if (servers[j] == NULL) {
4305                                 servers[j] = new serverrec;
4306                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
4307                                 strcpy(servers[j]->name,Link_ServerName);
4308                                 log(DEBUG,"Allocated new serverrec");
4309                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
4310                                 {
4311                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
4312                                 }
4313                                 return;
4314                         }
4315                 }
4316                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
4317         }
4318         else
4319         {
4320                 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);
4321         }
4322 }
4323
4324 void handle_squit(char **parameters, int pcnt, userrec *user)
4325 {
4326         // send out an squit across the mesh and then clear the server list (for local squit)
4327 }
4328
4329 void handle_oper(char **parameters, int pcnt, userrec *user)
4330 {
4331         char LoginName[MAXBUF];
4332         char Password[MAXBUF];
4333         char OperType[MAXBUF];
4334         char TypeName[MAXBUF];
4335         char Hostname[MAXBUF];
4336         int i,j;
4337
4338         for (i = 0; i < ConfValueEnum("oper"); i++)
4339         {
4340                 ConfValue("oper","name",i,LoginName);
4341                 ConfValue("oper","password",i,Password);
4342                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
4343                 {
4344                         /* correct oper credentials */
4345                         ConfValue("oper","type",i,OperType);
4346                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
4347                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
4348                         WriteServ(user->fd,"MODE %s :+o",user->nick);
4349                         for (j =0; j < ConfValueEnum("type"); j++)
4350                         {
4351                                 ConfValue("type","name",j,TypeName);
4352                                 if (!strcmp(TypeName,OperType))
4353                                 {
4354                                         /* found this oper's opertype */
4355                                         ConfValue("type","host",j,Hostname);
4356                                         strncpy(user->dhost,Hostname,256);
4357                                 }
4358                         }
4359                         if (!strchr(user->modes,'o'))
4360                         {
4361                                 strcat(user->modes,"o");
4362                         }
4363                         return;
4364                 }
4365         }
4366         /* no such oper */
4367         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
4368         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
4369 }
4370
4371 void handle_nick(char **parameters, int pcnt, userrec *user)
4372 {
4373         if (pcnt < 1)
4374         {
4375                 log(DEBUG,"not enough params for handle_nick");
4376                 return;
4377         }
4378         if (!parameters[0])
4379         {
4380                 log(DEBUG,"invalid parameter passed to handle_nick");
4381                 return;
4382         }
4383         if (!strlen(parameters[0]))
4384         {
4385                 log(DEBUG,"zero length new nick passed to handle_nick");
4386                 return;
4387         }
4388         if (!user)
4389         {
4390                 log(DEBUG,"invalid user passed to handle_nick");
4391                 return;
4392         }
4393         if (!user->nick)
4394         {
4395                 log(DEBUG,"invalid old nick passed to handle_nick");
4396                 return;
4397         }
4398         if (!strcasecmp(user->nick,parameters[0]))
4399         {
4400                 log(DEBUG,"old nick is new nick, skipping");
4401                 return;
4402         }
4403         else
4404         {
4405                 if (strlen(parameters[0]) > 1)
4406                 {
4407                         if (parameters[0][0] == ':')
4408                         {
4409                                 *parameters[0]++;
4410                         }
4411                 }
4412                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
4413                 {
4414                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
4415                         return;
4416                 }
4417         }
4418         if (isnick(parameters[0]) == 0)
4419         {
4420                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
4421                 return;
4422         }
4423
4424         if (user->registered == 7)
4425         {
4426                 WriteCommon(user,"NICK %s",parameters[0]);
4427         }
4428
4429         /* change the nick of the user in the users_hash */
4430         user = ReHashNick(user->nick, parameters[0]);
4431         /* actually change the nick within the record */
4432         if (!user) return;
4433         if (!user->nick) return;
4434
4435         strncpy(user->nick, parameters[0],NICKMAX);
4436
4437         log(DEBUG,"new nick set: %s",user->nick);
4438
4439         if (user->registered < 3)
4440                 user->registered = (user->registered | 2);
4441         if (user->registered == 3)
4442         {
4443                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
4444                 ConnectUser(user);
4445         }
4446         log(DEBUG,"exit nickchange: %s",user->nick);
4447 }
4448
4449 int process_parameters(char **command_p,char *parameters)
4450 {
4451         int i = 0;
4452         int j = 0;
4453         int q = 0;
4454         q = strlen(parameters);
4455         if (!q)
4456         {
4457                 /* no parameters, command_p invalid! */
4458                 return 0;
4459         }
4460         if (parameters[0] == ':')
4461         {
4462                 command_p[0] = parameters+1;
4463                 return 1;
4464         }
4465         if (q)
4466         {
4467                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
4468                 {
4469                         /* only one parameter */
4470                         command_p[0] = parameters;
4471                         if (parameters[0] == ':')
4472                         {
4473                                 if (strchr(parameters,' ') != NULL)
4474                                 {
4475                                         command_p[0]++;
4476                                 }
4477                         }
4478                         return 1;
4479                 }
4480         }
4481         command_p[j++] = parameters;
4482         for (i = 0; i <= q; i++)
4483         {
4484                 if (parameters[i] == ' ')
4485                 {
4486                         command_p[j++] = parameters+i+1;
4487                         parameters[i] = '\0';
4488                         if (command_p[j-1][0] == ':')
4489                         {
4490                                 *command_p[j-1]++; /* remove dodgy ":" */
4491                                 break;
4492                                 /* parameter like this marks end of the sequence */
4493                         }
4494                 }
4495         }
4496         return j; /* returns total number of items in the list */
4497 }
4498
4499 void process_command(userrec *user, char* cmd)
4500 {
4501         char *parameters;
4502         char *command;
4503         char *command_p[127];
4504         char p[MAXBUF], temp[MAXBUF];
4505         int i, j, items, cmd_found;
4506
4507         for (int i = 0; i < 127; i++)
4508                 command_p[i] = NULL;
4509
4510         if (!user)
4511         {
4512                 return;
4513         }
4514         if (!cmd)
4515         {
4516                 return;
4517         }
4518         if (!strcmp(cmd,""))
4519         {
4520                 return;
4521         }
4522         strcpy(temp,cmd);
4523
4524         string tmp = cmd;
4525         FOREACH_MOD OnServerRaw(tmp,true);
4526         const char* cmd2 = tmp.c_str();
4527         snprintf(cmd,512,"%s",cmd2);
4528
4529         if (!strchr(cmd,' '))
4530         {
4531                 /* no parameters, lets skip the formalities and not chop up
4532                  * the string */
4533                 items = 0;
4534                 command_p[0] = NULL;
4535                 parameters = NULL;
4536                 for (int i = 0; i <= strlen(cmd); i++)
4537                 {
4538                         cmd[i] = toupper(cmd[i]);
4539                 }
4540         }
4541         else
4542         {
4543                 strcpy(cmd,"");
4544                 j = 0;
4545                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
4546                 for (i = 0; i < strlen(temp); i++)
4547                 {
4548                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
4549                         {
4550                                 cmd[j++] = temp[i];
4551                                 cmd[j] = 0;
4552                         }
4553                 }
4554                 /* split the full string into a command plus parameters */
4555                 parameters = p;
4556                 strcpy(p," ");
4557                 command = cmd;
4558                 if (strchr(cmd,' '))
4559                 {
4560                         for (i = 0; i <= strlen(cmd); i++)
4561                         {
4562                                 /* capitalise the command ONLY, leave params intact */
4563                                 cmd[i] = toupper(cmd[i]);
4564                                 /* are we nearly there yet?! :P */
4565                                 if (cmd[i] == ' ')
4566                                 {
4567                                         command = cmd;
4568                                         parameters = cmd+i+1;
4569                                         cmd[i] = '\0';
4570                                         break;
4571                                 }
4572                         }
4573                 }
4574                 else
4575                 {
4576                         for (i = 0; i <= strlen(cmd); i++)
4577                         {
4578                                 cmd[i] = toupper(cmd[i]);
4579                         }
4580                 }
4581
4582         }
4583
4584         cmd_found = 0;
4585
4586         if (strlen(command)>MAXCOMMAND)
4587         {
4588                 command[MAXCOMMAND-1] = '\0';
4589                 WriteOpers("Possible command-flood from %s, sending excessively long commands.",user->nick);
4590         }
4591
4592         for (i = 0; i != cmdlist.size(); i++)
4593         {
4594                 if (strcmp(cmdlist[i].command,""))
4595                 {
4596                         if (!strcmp(command, cmdlist[i].command))
4597                         {
4598                                 if (parameters)
4599                                 {
4600                                         if (strcmp(parameters,""))
4601                                         {
4602                                                 items = process_parameters(command_p,parameters);
4603                                         }
4604                                         else
4605                                         {
4606                                                 items = 0;
4607                                                 command_p[0] = NULL;
4608                                         }
4609                                 }
4610                                 else
4611                                 {
4612                                         items = 0;
4613                                         command_p[0] = NULL;
4614                                 }
4615
4616                                 if (user)
4617                                 {
4618                                         /* activity resets the ping pending timer */
4619                                         user->nping = time(NULL) + 120;
4620                                         if ((items) < cmdlist[i].min_params)
4621                                         {
4622                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
4623                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
4624                                                 return;
4625                                         }
4626                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
4627                                         {
4628                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
4629                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
4630                                                 cmd_found = 1;
4631                                                 return;
4632                                         }
4633                 /* if the command isnt USER, PASS, or NICK, and nick is empty,
4634                  * deny command! */
4635                                         if ((strcmp(command,"USER")) && (strcmp(command,"NICK")) && (strcmp(command,"PASS")))
4636                                         {
4637                                                 if ((!isnick(user->nick)) || (user->registered != 7))
4638                                                 {
4639                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
4640                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
4641                                                         return;
4642                                                 }
4643                                         }
4644                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
4645                                         {
4646                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
4647                                                 if (cmdlist[i].handler_function)
4648                                                 {
4649                                                         /* ikky /stats counters */
4650                                                         if (temp)
4651                                                         {
4652                                                                 if (user)
4653                                                                 {
4654                                                                         user->bytes_in += strlen(temp);
4655                                                                         user->cmds_in++;
4656                                                                 }
4657                                                                 cmdlist[i].use_count++;
4658                                                                 cmdlist[i].total_bytes+=strlen(temp);
4659                                                         }
4660
4661                                                         /* WARNING: nothing may come after the
4662                                                          * command handler call, as the handler
4663                                                          * may free the user structure! */
4664
4665                                                         cmdlist[i].handler_function(command_p,items,user);
4666                                                 }
4667                                                 return;
4668                                         }
4669                                         else
4670                                         {
4671                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
4672                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
4673                                                 return;
4674                                         }
4675                                 }
4676                                 cmd_found = 1;
4677                         }
4678                 }
4679         }
4680         if ((!cmd_found) && (user))
4681         {
4682                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
4683                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
4684         }
4685 }
4686
4687
4688 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
4689 {
4690         command_t comm;
4691         /* create the command and push it onto the table */
4692         strcpy(comm.command,cmd);
4693         comm.handler_function = f;
4694         comm.flags_needed = flags;
4695         comm.min_params = minparams;
4696         comm.use_count = 0;
4697         comm.total_bytes = 0;
4698         cmdlist.push_back(comm);
4699         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
4700 }
4701
4702 void SetupCommandTable(void)
4703 {
4704   createcommand("USER",handle_user,0,4);
4705   createcommand("NICK",handle_nick,0,1);
4706   createcommand("QUIT",handle_quit,0,0);
4707   createcommand("VERSION",handle_version,0,0);
4708   createcommand("PING",handle_ping,0,1);
4709   createcommand("PONG",handle_pong,0,1);
4710   createcommand("ADMIN",handle_admin,0,0);
4711   createcommand("PRIVMSG",handle_privmsg,0,2);
4712   createcommand("INFO",handle_info,0,0);
4713   createcommand("TIME",handle_time,0,0);
4714   createcommand("WHOIS",handle_whois,0,1);
4715   createcommand("WALLOPS",handle_wallops,'o',1);
4716   createcommand("NOTICE",handle_notice,0,2);
4717   createcommand("JOIN",handle_join,0,1);
4718   createcommand("NAMES",handle_names,0,1);
4719   createcommand("PART",handle_part,0,1);
4720   createcommand("KICK",handle_kick,0,2);
4721   createcommand("MODE",handle_mode,0,1);
4722   createcommand("TOPIC",handle_topic,0,1);
4723   createcommand("WHO",handle_who,0,1);
4724   createcommand("MOTD",handle_motd,0,0);
4725   createcommand("RULES",handle_join,0,0);
4726   createcommand("OPER",handle_oper,0,2);
4727   createcommand("LIST",handle_list,0,0);
4728   createcommand("DIE",handle_die,'o',1);
4729   createcommand("RESTART",handle_restart,'o',1);
4730   createcommand("KILL",handle_kill,'o',2);
4731   createcommand("REHASH",handle_rehash,'o',0);
4732   createcommand("LUSERS",handle_lusers,0,0);
4733   createcommand("STATS",handle_stats,0,1);
4734   createcommand("USERHOST",handle_userhost,0,1);
4735   createcommand("AWAY",handle_away,0,0);
4736   createcommand("ISON",handle_ison,0,0);
4737   createcommand("SUMMON",handle_summon,0,0);
4738   createcommand("USERS",handle_users,0,0);
4739   createcommand("INVITE",handle_invite,0,2);
4740   createcommand("PASS",handle_pass,0,1);
4741   createcommand("TRACE",handle_trace,'o',0);
4742   createcommand("WHOWAS",handle_whowas,0,1);
4743   createcommand("CONNECT",handle_connect,'o',1);
4744   createcommand("SQUIT",handle_squit,'o',1);
4745   createcommand("MODULES",handle_modules,'o',0);
4746 }
4747
4748 void process_buffer(userrec *user)
4749 {
4750         if (!user)
4751         {
4752                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
4753                 return;
4754         }
4755         char cmd[MAXBUF];
4756         int i;
4757         if (!user->inbuf)
4758         {
4759                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
4760                 return;
4761         }
4762         if (!strcmp(user->inbuf,""))
4763         {
4764                 return;
4765         }
4766         strncpy(cmd,user->inbuf,MAXBUF);
4767         if (!strcmp(cmd,""))
4768         {
4769                 return;
4770         }
4771         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
4772         {
4773                 cmd[strlen(cmd)-1] = '\0';
4774         }
4775         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
4776         {
4777                 cmd[strlen(cmd)-1] = '\0';
4778         }
4779         strcpy(user->inbuf,"");
4780         if (!strcmp(cmd,""))
4781         {
4782                 return;
4783         }
4784         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
4785         tidystring(cmd);
4786         if (user)
4787         {
4788                 process_command(user,cmd);
4789         }
4790 }
4791
4792 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
4793 {
4794         WriteOpers("Secure-UDP-Channel: Token='%c', Params='%s'",token,params);
4795 }
4796
4797
4798 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
4799 {
4800         char response[10240];
4801         char token = udp_msg[0];
4802         char* params = udp_msg + 2;
4803         char finalparam[1024];
4804         strcpy(finalparam," :xxxx");
4805         if (strstr(params," :")) {
4806                 strncpy(finalparam,strstr(params," :"),1024);
4807         }
4808         if (token == 'S') {
4809                 // S test.chatspike.net password :ChatSpike InspIRCd test server
4810                 char* servername = strtok(params," ");
4811                 char* password = strtok(NULL," ");
4812                 char* serverdesc = finalparam+2;
4813                 WriteOpers("CONNECT from %s (%s)",servername,udp_host,password,serverdesc);
4814
4815
4816                 char Link_ServerName[1024];
4817                 char Link_IPAddr[1024];
4818                 char Link_Port[1024];
4819                 char Link_Pass[1024];
4820                 char Link_SendPass[1024];
4821                 int LinkPort = 0;
4822
4823                 // search for a corresponding <link> block in the config files
4824                 for (int i = 0; i < ConfValueEnum("link"); i++)
4825                 {
4826                         ConfValue("link","name",i,Link_ServerName);
4827                         ConfValue("link","ipaddr",i,Link_IPAddr);
4828                         ConfValue("link","port",i,Link_Port);
4829                         ConfValue("link","recvpass",i,Link_Pass);
4830                         ConfValue("link","sendpass",i,Link_SendPass);
4831                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
4832                         LinkPort = atoi(Link_Port);
4833                         if (!strcasecmp(Link_ServerName,servername)) {
4834                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
4835                                         if (LinkPort == udp_port) {
4836                                                 // we have a matching link line -
4837                                                 // send a 'diminutive' server message back...
4838                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
4839                                                 serv->SendPacket(response,udp_host,udp_port,0);
4840                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
4841                                                 for (int j = 0; j < 255; j++) {
4842                                                         if (servers[j] == NULL) {
4843                                                                 servers[j] = new serverrec;
4844                                                                 strcpy(servers[j]->internal_addr,udp_host);
4845                                                                 strcpy(servers[j]->name,servername);
4846                                                                 // create a server record for this server
4847                                                                 snprintf(response,10240,"O %d",MyKey);
4848                                                                 serv->SendPacket(response,udp_host,udp_port,0);
4849                                                                 return;
4850                                                         }
4851                                                 }
4852                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
4853                                                 return;
4854                                         }
4855                                         else {
4856                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
4857                                         }
4858                                 }
4859                                 else {
4860                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
4861                                 }
4862                         }
4863                         else {
4864                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
4865                         }
4866                 }
4867                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
4868                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
4869                 return;
4870         }
4871         else
4872         if (token == 'O') {
4873                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
4874                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
4875                 // array, which is only added by an 'S' packet or BeginLink().
4876                 for (int i = 0; i < 255; i++) {
4877                         if (servers[i] != NULL) {
4878                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
4879                                         servers[i]->key = atoi(params);
4880                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
4881                                         serv->SendPacket("Z blah blah",udp_host,udp_port,MyKey);
4882                                         return;
4883                                 }
4884                         }
4885                 }
4886                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
4887         }
4888         else
4889         if (token == 's') {
4890                 // S test.chatspike.net password :ChatSpike InspIRCd test server
4891                 char* servername = strtok(params," ");
4892                 char* password = strtok(NULL," ");
4893                 char* serverdesc = finalparam+2;
4894
4895                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
4896                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
4897                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
4898                 // a connect, so put out an oper alert!
4899
4900
4901
4902
4903                 // for now, just accept all, we'll fix that later.
4904                 WriteOpers("%s accepted our link credentials ",servername);
4905
4906                 char Link_ServerName[1024];
4907                 char Link_IPAddr[1024];
4908                 char Link_Port[1024];
4909                 char Link_Pass[1024];
4910                 char Link_SendPass[1024];
4911                 int LinkPort = 0;
4912
4913                 // search for a corresponding <link> block in the config files
4914                 for (int i = 0; i < ConfValueEnum("link"); i++)
4915                 {
4916                         ConfValue("link","name",i,Link_ServerName);
4917                         ConfValue("link","ipaddr",i,Link_IPAddr);
4918                         ConfValue("link","port",i,Link_Port);
4919                         ConfValue("link","recvpass",i,Link_Pass);
4920                         ConfValue("link","sendpass",i,Link_SendPass);
4921                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
4922                         LinkPort = atoi(Link_Port);
4923                         if (!strcasecmp(Link_ServerName,servername)) {
4924                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
4925                                         if (LinkPort == udp_port) {
4926                                                 // matching link at this end too, we're all done!
4927                                                 // at this point we must begin key exchange and insert this
4928                                                 // server into our 'active' table.
4929                                                 for (int j = 0; j < 255; j++) {
4930                                                         if (servers[j] != NULL) {
4931                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
4932                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
4933                                                                         snprintf(response,10240,"O %d",MyKey);
4934                                                                         serv->SendPacket(response,udp_host,udp_port,0);
4935                                                                         return;
4936                                                                 }
4937                                                         }
4938                                                 }
4939                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
4940                                                 return;
4941
4942                                         }
4943                                         else {
4944                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
4945                                         }
4946                                 }
4947                                 else {
4948                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
4949                                 }
4950                         }
4951                         else {
4952                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
4953                         }
4954                 }
4955                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
4956                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
4957                 return;
4958         }
4959         else
4960         if (token == 'E') {
4961                 char* error_message = finalparam+2;
4962                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
4963                 // remove this server from any lists
4964                 for (int j = 0; j < 255; j++) {
4965                         if (servers[j] != NULL) {
4966                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
4967                                         delete servers[j];
4968                                         return;
4969                                 }
4970                         }
4971                 }
4972                 return;
4973         }
4974         else {
4975
4976                 serverrec* source_server = NULL;
4977
4978                 for (int j = 0; j < 255; j++) {
4979                         if (servers[j] != NULL) {
4980                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
4981                                         if (servers[j]->key == theirkey) {
4982                                                 // found a valid key for this server, can process restricted stuff here
4983                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
4984
4985                                                 return;
4986                                         }
4987                                 }
4988                         }
4989                 }
4990
4991                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
4992         }
4993 }
4994
4995 int reap_counter = 0;
4996
4997 int InspIRCd(void)
4998 {
4999   struct sockaddr_in client, server;
5000   char addrs[MAXBUF][255];
5001   int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
5002   socklen_t length;
5003   int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
5004   int selectResult = 0;
5005   char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
5006   char resolvedHost[MAXBUF];
5007   fd_set selectFds;
5008   struct timeval tv;
5009
5010   log_file = fopen("ircd.log","a+");
5011   if (!log_file)
5012   {
5013         printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
5014         Exit(ERROR);
5015   }
5016
5017   log(DEBUG,"InspIRCd: startup: begin");
5018   log(DEBUG,"$Id$");
5019   if (geteuid() == 0)
5020   {
5021         printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
5022         Exit(ERROR);
5023         log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
5024   }
5025   SetupCommandTable();
5026   log(DEBUG,"InspIRCd: startup: default command table set up");
5027
5028   ReadConfig();
5029   if (strcmp(DieValue,""))
5030   {
5031         printf("WARNING: %s\n\n",DieValue);
5032         exit(0);
5033   }
5034   log(DEBUG,"InspIRCd: startup: read config");
5035
5036   int count2 = 0, count3 = 0;
5037   for (count = 0; count < ConfValueEnum("bind"); count++)
5038   {
5039         ConfValue("bind","port",count,configToken);
5040         ConfValue("bind","address",count,Addr);
5041         ConfValue("bind","type",count,Type);
5042         if (!strcmp(Type,"servers"))
5043         {
5044                 char Default[MAXBUF];
5045                 strcpy(Default,"no");
5046                 ConfValue("bind","default",count,Default);
5047                 if (strchr(Default,'y'))
5048                 {
5049                                 defaultRoute = count3;
5050                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
5051                 }
5052                 me[count3] = new serverrec(ServerName,100L,false);
5053                 me[count3]->CreateListener(Addr,atoi(configToken));
5054                 count3++;
5055         }
5056         else
5057         {
5058                 ports[count2] = atoi(configToken);
5059                 strcpy(addrs[count2],Addr);
5060                 count2++;
5061         }
5062         log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
5063   }
5064   portCount = count2;
5065   UDPportCount = count3;
5066
5067   log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
5068
5069   log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
5070
5071   printf("\n");
5072
5073   /* BugFix By Craig! :p */
5074   count2 = 0;
5075   for (count = 0; count2 < ConfValueEnum("module"); count2++)
5076   {
5077         char modfile[MAXBUF];
5078         ConfValue("module","name",count,configToken);
5079         sprintf(modfile,"%s/%s",MOD_PATH,configToken);
5080         printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
5081         log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
5082         /* If The File Doesnt exist, Trying to load it
5083          * Will Segfault the IRCd.. So, check to see if
5084          * it Exists, Before Proceeding. */
5085         if (FileExists(modfile))
5086         {
5087                 factory[count] = new ircd_module(modfile);
5088                 if (factory[count]->LastError())
5089                 {
5090                         log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
5091                         sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
5092                         Exit(ERROR);
5093                 }
5094                 if (factory[count]->factory)
5095                 {
5096                         modules[count] = factory[count]->factory->CreateModule();
5097                         /* save the module and the module's classfactory, if
5098                          * this isnt done, random crashes can occur :/ */
5099                         module_names.push_back(modfile);
5100                 }
5101                 else
5102                 {
5103                         log(DEBUG,"Unable to load %s",modfile);
5104                         sprintf("Unable to load %s\nExiting...\n",modfile);
5105                         Exit(ERROR);
5106                 }
5107                 /* Increase the Count */
5108                 count++;
5109         }
5110         else
5111         {
5112                 log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
5113                 printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
5114         }
5115   }
5116   MODCOUNT = count - 1;
5117   log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
5118
5119   printf("\nInspIRCd is now running!\n");
5120
5121   startup_time = time(NULL);
5122
5123   if (nofork)
5124   {
5125         log(VERBOSE,"Not forking as -nofork was specified");
5126   }
5127   else
5128   {
5129         if (DaemonSeed() == ERROR)
5130         {
5131                 log(DEBUG,"InspIRCd: startup: can't daemonise");
5132                 printf("ERROR: could not go into daemon mode. Shutting down.\n");
5133                 Exit(ERROR);
5134         }
5135   }
5136
5137
5138   /* setup select call */
5139   FD_ZERO(&selectFds);
5140   log(DEBUG,"InspIRCd: startup: zero selects");
5141   log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
5142
5143   for (count = 0; count < portCount; count++)
5144   {
5145           if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
5146       {
5147                 log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
5148                 return(ERROR);
5149       }
5150       if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
5151       {
5152                 log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
5153       }
5154       else                      /* well we at least bound to one socket so we'll continue */
5155       {
5156                 boundPortCount++;
5157       }
5158   }
5159
5160   log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
5161
5162   /* if we didn't bind to anything then abort */
5163   if (boundPortCount == 0)
5164   {
5165      log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
5166      return (ERROR);
5167   }
5168
5169   length = sizeof (client);
5170   int flip_flop = 0, udp_port = 0;
5171   char udp_msg[MAXBUF], udp_host[MAXBUF];
5172
5173   /* main loop for multiplexing/resetting */
5174   for (;;)
5175   {
5176       /* set up select call */
5177       for (count = 0; count < boundPortCount; count++)
5178       {
5179                 FD_SET (openSockfd[count], &selectFds);
5180       }
5181
5182       /* added timeout! select was waiting forever... wank... :/ */
5183       tv.tv_usec = 0;
5184
5185       flip_flop++;
5186       reap_counter++;
5187       if (flip_flop > 20)
5188       {
5189               tv.tv_usec = 1;
5190               flip_flop = 0;
5191       }
5192
5193         vector<int>::iterator niterator;
5194
5195
5196         // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
5197         // them in a list, then reap the list every second or so.
5198         if (reap_counter>5000) {
5199                 if (fd_reap.size() > 0) {
5200                         for( int n = 0; n < fd_reap.size(); n++)
5201                         {
5202                                 Blocking(fd_reap[n]);
5203                                 close(fd_reap[n]);
5204                                 NonBlocking(fd_reap[n]);
5205                         }
5206                 }
5207                 fd_reap.clear();
5208                 reap_counter=0;
5209         }
5210
5211
5212       tv.tv_sec = 0;
5213       selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
5214
5215       for (int x = 0; x != UDPportCount; x++)
5216       {
5217            long theirkey = 0;
5218            if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
5219            {
5220                         if (strlen(udp_msg)<1) {
5221                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
5222                         }
5223                         else {
5224                                 FOREACH_MOD OnPacketReceive(udp_msg);
5225                                 // Packets must go back via the route they arrived on :)
5226                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
5227                         }
5228            }
5229       }
5230
5231         for (user_hash::iterator count2 = clientlist.begin(); count2 != clientlist.end(); count2++)
5232         {
5233                 char data[MAXBUF];
5234
5235                 if (!count2->second) break;
5236
5237                 if (count2->second)
5238                 if (count2->second->fd)
5239                 {
5240                         if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
5241                         {
5242                                 if (!count2->second->lastping)
5243                                 {
5244                                         log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
5245                                         kill_link(count2->second,"Ping timeout");
5246                                         break;
5247                                 }
5248                                 Write(count2->second->fd,"PING :%s",ServerName);
5249                                 log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
5250                                 count2->second->lastping = 0;
5251                                 count2->second->nping = time(NULL)+120;
5252                         }
5253
5254                         result = read(count2->second->fd, data, 1);
5255                         // result EAGAIN means nothing read
5256                         if (result == EAGAIN)
5257                         {
5258                         }
5259                         else
5260                         if (result == 0)
5261                         {
5262                                 if (count2->second)
5263                                 {
5264                                         log(DEBUG,"InspIRCd: Exited: %s",count2->second->nick);
5265                                         kill_link(count2->second,"Client exited");
5266                                         // must bail here? kill_link removes the hash, corrupting the iterator
5267                                         log(DEBUG,"Bailing from client exit");
5268                                         break;
5269                                 }
5270                         }
5271                         else if (result > 0)
5272                         {
5273                                 if (count2->second)
5274                                 {
5275
5276                                         // until the buffer is at 509 chars anything can be inserted into it.
5277                                         if (strlen(count2->second->inbuf) < 509) {
5278                                                 strncat(count2->second->inbuf, data, result);
5279                                         }
5280
5281                                         // once you reach 509 chars, only a \r or \n can be inserted,
5282                                         // completing the line.
5283                                         if ((strlen(count2->second->inbuf) >= 509) && ((data[0] == '\r') || (data[0] == '\n'))) {
5284                                                 count2->second->inbuf[509] = '\r';
5285                                                 count2->second->inbuf[510] = '\n';
5286                                                 count2->second->inbuf[511] = '\0';
5287                                         }
5288
5289                                         if (strchr(count2->second->inbuf, '\n') || strchr(count2->second->inbuf, '\r') || (strlen(count2->second->inbuf) > 509))
5290                                         {
5291                                                 /* at least one complete line is waiting to be processed */
5292                                                 if (!count2->second->fd)
5293                                                         break;
5294                                                 else
5295                                                 {
5296                                                         if (strlen(count2->second->inbuf)<513)
5297                                                         {
5298                                                                 // double check the length before processing!
5299                                                                 process_buffer(count2->second);
5300                                                         }
5301                                                         break;
5302                                                 }
5303                                         }
5304                                 }
5305                         }
5306                 }
5307         }
5308
5309       /* select is reporting a waiting socket. Poll them all to find out which */
5310       if (selectResult > 0)
5311       {
5312         char target[MAXBUF], resolved[MAXBUF];
5313         for (count = 0; count < boundPortCount; count++)
5314         {
5315             if (FD_ISSET (openSockfd[count], &selectFds))
5316             {
5317               incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
5318
5319               address_cache::iterator iter = IP.find(client.sin_addr);
5320               bool iscached = false;
5321               if (iter == IP.end())
5322               {
5323                         /* ip isn't in cache, add it */
5324                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
5325                         if(CleanAndResolve(resolved, target) != TRUE)
5326                         {
5327                                 strncpy(resolved,target,MAXBUF);
5328                         }
5329                         /* hostname now in 'target' */
5330                         IP[client.sin_addr] = new string(resolved);
5331               /* hostname in cache */
5332               }
5333               else
5334               {
5335               /* found ip (cached) */
5336               strncpy(resolved, iter->second->c_str(), MAXBUF);
5337               iscached = true;
5338            }
5339
5340               if (incomingSockfd < 0)
5341               {
5342                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
5343                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
5344                         break;
5345               }
5346
5347               AddClient(incomingSockfd, resolved, ports[count], iscached);
5348               log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
5349               break;
5350             }
5351
5352            }
5353       }
5354   }
5355
5356   /* not reached */
5357   close (incomingSockfd);
5358 }
5359