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 bool hasumode(userrec* user, char mode)
 777 {
 778         if (user)
 779         {
 780                 return (strchr(user->modes,mode)>0);
 781         }
 782         else return false;
 783 }
 784
 785 void WriteMode(const char* modes, int flags, const char* text, ...)
 786 {
 787         if ((!text) || (!modes) || (!flags))
 788         {
 789                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
 790                 return;
 791         }
 792
 793         char textbuffer[MAXBUF];
 794         va_list argsPtr;
 795         va_start (argsPtr, text);
 796         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 797         va_end(argsPtr);
 798
 799         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 800         {
 801                 if (i->second)
 802                 {
 803                         bool send_to_user = false;
 804
 805                         if (flags == WM_AND)
 806                         {
 807                                 send_to_user = true;
 808                                 for (int n = 0; n < strlen(modes); n++)
 809                                 {
 810                                         if (!hasumode(i->second,modes[n]))
 811                                         {
 812                                                 send_to_user = false;
 813                                                 break;
 814                                         }
 815                                 }
 816                         }
 817                         else if (flags == WM_OR)
 818                         {
 819                                 send_to_user = false;
 820                                 for (int n = 0; n < strlen(modes); n++)
 821                                 {
 822                                         if (hasumode(i->second,modes[n]))
 823                                         {
 824                                                 send_to_user = true;
 825                                                 break;
 826                                         }
 827                                 }
 828                         }
 829
 830                         if (send_to_user)
 831                         {
 832                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 833                         }
 834                 }
 835         }
 836 }
 837
 838 void WriteWallOps(userrec *source, char* text, ...)
 839 {
 840         if ((!text) || (!source))
 841         {
 842                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 843                 return;
 844         }
 845
 846         int i = 0;
 847         char textbuffer[MAXBUF];
 848         va_list argsPtr;
 849         va_start (argsPtr, text);
 850         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 851         va_end(argsPtr);
 852
 853         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 854         {
 855                 if (i->second)
 856                 {
 857                         if (strchr(i->second->modes,'w'))
 858                         {
 859                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
 860                         }
 861                 }
 862         }
 863 }
 864
 865 /* convert a string to lowercase. Note following special circumstances
 866  * taken from RFC 1459. Many "official" server branches still hold to this
 867  * rule so i will too;
 868  *
 869  *  Because of IRC's scandanavian origin, the characters {}| are
 870  *  considered to be the lower case equivalents of the characters []\,
 871  *  respectively. This is a critical issue when determining the
 872  *  equivalence of two nicknames.
 873  */
 874
 875 void strlower(char *n)
 876 {
 877         if (!n)
 878         {
 879                 return;
 880         }
 881         for (int i = 0; i != strlen(n); i++)
 882         {
 883                 n[i] = tolower(n[i]);
 884                 if (n[i] == '[')
 885                         n[i] = '{';
 886                 if (n[i] == ']')
 887                         n[i] = '}';
 888                 if (n[i] == '\\')
 889                         n[i] = '|';
 890         }
 891 }
 892
 893 /* verify that a user's ident and nickname is valid */
 894
 895 int isident(const char* n)
 896 {
 897         int i = 0;
 898         char v[MAXBUF];
 899         if (!n)
 900
 901         {
 902                 return 0;
 903         }
 904         if (!strcmp(n,""))
 905         {
 906                 return 0;
 907         }
 908         for (i = 0; i != strlen(n); i++)
 909         {
 910                 if ((n[i] < 33) || (n[i] > 125))
 911                 {
 912                         return 0;
 913                 }
 914                 /* can't occur ANYWHERE in an Ident! */
 915                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
 916                 {
 917                         return 0;
 918                 }
 919         }
 920         return 1;
 921 }
 922
 923
 924 int isnick(const char* n)
 925 {
 926         int i = 0;
 927         char v[MAXBUF];
 928         if (!n)
 929         {
 930                 return 0;
 931         }
 932         if (!strcmp(n,""))
 933         {
 934                 return 0;
 935         }
 936         if (strlen(n) > NICKMAX-1)
 937         {
 938                 return 0;
 939         }
 940         for (i = 0; i != strlen(n); i++)
 941         {
 942                 if ((n[i] < 33) || (n[i] > 125))
 943                 {
 944                         return 0;
 945                 }
 946                 /* can't occur ANYWHERE in a nickname! */
 947                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
 948                 {
 949                         return 0;
 950                 }
 951                 /* can't occur as the first char of a nickname... */
 952                 if ((strchr("0123456789",n[i])) && (!i))
 953                 {
 954                         return 0;
 955                 }
 956         }
 957         return 1;
 958 }
 959
 960 /* Find a user record by nickname and return a pointer to it */
 961
 962 userrec* Find(string nick)
 963 {
 964         user_hash::iterator iter = clientlist.find(nick);
 965
 966         if (iter == clientlist.end())
 967                 /* Couldn't find it */
 968                 return NULL;
 969
 970         return iter->second;
 971 }
 972
 973 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
 974 {
 975         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 976         {
 977                 if (i->second)
 978                 {
 979                         if (i->second->fd == fd)
 980                         {
 981                                 i->second->bytes_out+=data_out;
 982                                 i->second->cmds_out++;
 983                         }
 984                 }
 985         }
 986 }
 987
 988
 989 /* find a channel record by channel name and return a pointer to it */
 990
 991 chanrec* FindChan(const char* chan)
 992 {
 993         if (!chan)
 994         {
 995                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
 996                 return NULL;
 997         }
 998
 999         chan_hash::iterator iter = chanlist.find(chan);
1000
1001         if (iter == chanlist.end())
1002                 /* Couldn't find it */
1003                 return NULL;
1004
1005         return iter->second;
1006 }
1007
1008
1009 void purge_empty_chans(void)
1010 {
1011         int go_again = 1, purge = 0;
1012
1013         while (go_again)
1014         {
1015                 go_again = 0;
1016                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1017                 {
1018                         if (i->second) {
1019                                 if (!usercount(i->second))
1020                                 {
1021                                         /* kill the record */
1022                                         if (i != chanlist.end())
1023                                         {
1024                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1025                                                 delete i->second;
1026                                                 chanlist.erase(i);
1027                                                 go_again = 1;
1028                                                 purge++;
1029                                                 break;
1030                                         }
1031                                 }
1032                                 else
1033                                 {
1034                                         log(DEBUG,"skipped purge for %s",i->second->name);
1035                                 }
1036                         }
1037                 }
1038         }
1039         log(DEBUG,"completed channel purge, killed %d",purge);
1040 }
1041
1042 /* returns the status character for a given user on a channel, e.g. @ for op,
1043  * % for halfop etc. If the user has several modes set, the highest mode
1044  * the user has must be returned. */
1045
1046 char* cmode(userrec *user, chanrec *chan)
1047 {
1048         if ((!user) || (!chan))
1049         {
1050                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1051                 return "";
1052         }
1053
1054         int i;
1055         for (i = 0; i != MAXCHANS; i++)
1056         {
1057                 if ((user->chans[i].channel == chan) && (chan != NULL))
1058                 {
1059                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1060                         {
1061                                 return "@";
1062                         }
1063                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1064                         {
1065                                 return "%";
1066                         }
1067                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1068                         {
1069                                 return "+";
1070                         }
1071                         return "";
1072                 }
1073         }
1074 }
1075
1076 char scratch[MAXBUF];
1077 char sparam[MAXBUF];
1078
1079 char* chanmodes(chanrec *chan)
1080 {
1081         if (!chan)
1082         {
1083                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1084                 strcpy(scratch,"");
1085                 return scratch;
1086         }
1087
1088         strcpy(scratch,"");
1089         strcpy(sparam,"");
1090         if (chan->noexternal)
1091         {
1092                 strncat(scratch,"n",MAXMODES);
1093         }
1094         if (chan->topiclock)
1095         {
1096                 strncat(scratch,"t",MAXMODES);
1097         }
1098         if (strcmp(chan->key,""))
1099         {
1100                 strncat(scratch,"k",MAXMODES);
1101         }
1102         if (chan->limit)
1103         {
1104                 strncat(scratch,"l",MAXMODES);
1105         }
1106         if (chan->inviteonly)
1107         {
1108                 strncat(scratch,"i",MAXMODES);
1109         }
1110         if (chan->moderated)
1111         {
1112                 strncat(scratch,"m",MAXMODES);
1113         }
1114         if (chan->secret)
1115         {
1116                 strncat(scratch,"s",MAXMODES);
1117         }
1118         if (chan->c_private)
1119         {
1120                 strncat(scratch,"p",MAXMODES);
1121         }
1122         if (strcmp(chan->key,""))
1123         {
1124                 strncat(sparam,chan->key,MAXBUF);
1125         }
1126         if (chan->limit)
1127         {
1128                 char foo[24];
1129                 sprintf(foo," %d",chan->limit);
1130                 strncat(sparam,foo,MAXBUF);
1131         }
1132         if (strlen(chan->custom_modes))
1133         {
1134                 strncat(scratch,chan->custom_modes,MAXMODES);
1135                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1136                 {
1137                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1138                         if (extparam != "")
1139                         {
1140                                 strncat(sparam," ",MAXBUF);
1141                                 strncat(sparam,extparam.c_str(),MAXBUF);
1142                         }
1143                 }
1144         }
1145         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1146         strncat(scratch,sparam,MAXMODES);
1147         return scratch;
1148 }
1149
1150 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1151  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1152  * highest mode the user has must be returned. */
1153
1154 int cstatus(userrec *user, chanrec *chan)
1155 {
1156         if ((!chan) || (!user))
1157         {
1158                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1159                 return 0;
1160         }
1161
1162         int i;
1163         for (i = 0; i != MAXCHANS; i++)
1164         {
1165                 if ((user->chans[i].channel == chan) && (chan != NULL))
1166                 {
1167                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1168                         {
1169                                 return STATUS_OP;
1170                         }
1171                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1172                         {
1173                                 return STATUS_HOP;
1174                         }
1175                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1176                         {
1177                                 return STATUS_VOICE;
1178                         }
1179                         return STATUS_NORMAL;
1180                 }
1181         }
1182 }
1183
1184
1185 /* compile a userlist of a channel into a string, each nick seperated by
1186  * spaces and op, voice etc status shown as @ and + */
1187
1188 void userlist(userrec *user,chanrec *c)
1189 {
1190         if ((!c) || (!user))
1191         {
1192                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1193                 return;
1194         }
1195
1196         sprintf(list,"353 %s = %s :", user->nick, c->name);
1197         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1198         {
1199                 if (has_channel(i->second,c))
1200                 {
1201                         if (isnick(i->second->nick))
1202                         {
1203                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1204                                 {
1205                                         /* user is +i, and source not on the channel, does not show
1206                                          * nick in NAMES list */
1207                                         continue;
1208                                 }
1209                                 strcat(list,cmode(i->second,c));
1210                                 strcat(list,i->second->nick);
1211                                 strcat(list," ");
1212                                 if (strlen(list)>(480-NICKMAX))
1213                                 {
1214                                         /* list overflowed into
1215                                          * multiple numerics */
1216                                         WriteServ(user->fd,list);
1217                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1218                                 }
1219                         }
1220                 }
1221         }
1222         /* if whats left in the list isnt empty, send it */
1223         if (list[strlen(list)-1] != ':')
1224         {
1225                 WriteServ(user->fd,list);
1226         }
1227 }
1228
1229 /* return a count of the users on a specific channel accounting for
1230  * invisible users who won't increase the count. e.g. for /LIST */
1231
1232 int usercount_i(chanrec *c)
1233 {
1234         int i = 0;
1235         int count = 0;
1236
1237         if (!c)
1238         {
1239                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1240                 return 0;
1241         }
1242
1243         strcpy(list,"");
1244         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1245         {
1246                 if (i->second)
1247                 {
1248                         if (has_channel(i->second,c))
1249                         {
1250                                 if (isnick(i->second->nick))
1251                                 {
1252                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1253                                         {
1254                                                 /* user is +i, and source not on the channel, does not show
1255                                                  * nick in NAMES list */
1256                                                 continue;
1257                                         }
1258                                         count++;
1259                                 }
1260                         }
1261                 }
1262         }
1263         log(DEBUG,"usercount_i: %s %d",c->name,count);
1264         return count;
1265 }
1266
1267
1268 int usercount(chanrec *c)
1269 {
1270         int i = 0;
1271         int count = 0;
1272
1273         if (!c)
1274         {
1275                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1276                 return 0;
1277         }
1278
1279         strcpy(list,"");
1280         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1281         {
1282                 if (i->second)
1283                 {
1284                         if (has_channel(i->second,c))
1285                         {
1286                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1287                                 {
1288                                         count++;
1289                                 }
1290                         }
1291                 }
1292         }
1293         log(DEBUG,"usercount: %s %d",c->name,count);
1294         return count;
1295 }
1296
1297
1298 /* add a channel to a user, creating the record for it if needed and linking
1299  * it to the user record */
1300
1301 chanrec* add_channel(userrec *user, const char* cn, const char* key)
1302 {
1303         if ((!user) || (!cn))
1304         {
1305                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1306                 return 0;
1307         }
1308
1309         int i = 0;
1310         chanrec* Ptr;
1311         int created = 0;
1312         char cname[MAXBUF];
1313
1314         strncpy(cname,cn,MAXBUF);
1315
1316         // we MUST declare this wherever we use FOREACH_RESULT
1317         int MOD_RESULT = 0;
1318
1319         if ((!cname) || (!user))
1320         {
1321                 return NULL;
1322         }
1323         if (strlen(cname) > CHANMAX-1)
1324         {
1325                 cname[CHANMAX-1] = '\0';
1326         }
1327
1328         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1329
1330         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1331         {
1332                 return NULL; // already on the channel!
1333         }
1334
1335
1336         if (!FindChan(cname))
1337         {
1338                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1339                 if (MOD_RESULT) {
1340                         return NULL;
1341                 }
1342
1343                 /* create a new one */
1344                 log(DEBUG,"add_channel: creating: %s",cname);
1345                 {
1346                         chanlist[cname] = new chanrec();
1347
1348                         strcpy(chanlist[cname]->name, cname);
1349                         chanlist[cname]->topiclock = 1;
1350                         chanlist[cname]->noexternal = 1;
1351                         chanlist[cname]->created = time(NULL);
1352                         strcpy(chanlist[cname]->topic, "");
1353                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1354                         chanlist[cname]->topicset = 0;
1355                         Ptr = chanlist[cname];
1356                         log(DEBUG,"add_channel: created: %s",cname);
1357                         /* set created to 2 to indicate user
1358                          * is the first in the channel
1359                          * and should be given ops */
1360                         created = 2;
1361                 }
1362         }
1363         else
1364         {
1365                 /* channel exists, just fish out a pointer to its struct */
1366                 Ptr = FindChan(cname);
1367                 if (Ptr)
1368                 {
1369                         FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1370                         if (MOD_RESULT) {
1371                                 return NULL;
1372                         }
1373
1374                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1375                         if (strcmp(Ptr->key,""))
1376                         {
1377                                 log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1378                                 if (!key)
1379                                 {
1380                                         log(DEBUG,"add_channel: no key given in JOIN");
1381                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1382                                         return NULL;
1383                                 }
1384                                 else
1385                                 {
1386                                         log(DEBUG,"key at %p is %s",key,key);
1387                                         if (strcasecmp(key,Ptr->key))
1388                                         {
1389                                                 log(DEBUG,"add_channel: bad key given in JOIN");
1390                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1391                                                 return NULL;
1392                                         }
1393                                 }
1394                         }
1395                         log(DEBUG,"add_channel: no key");
1396
1397                         if (Ptr->inviteonly)
1398                         {
1399                                 log(DEBUG,"add_channel: channel is +i");
1400                                 if (user->IsInvited(Ptr->name))
1401                                 {
1402                                         /* user was invited to channel */
1403                                         /* there may be an optional channel NOTICE here */
1404                                 }
1405                                 else
1406                                 {
1407                                         WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1408                                         return NULL;
1409                                 }
1410                         }
1411                         log(DEBUG,"add_channel: channel is not +i");
1412
1413                         if (Ptr->limit)
1414                         {
1415                                 if (usercount(Ptr) == Ptr->limit)
1416                                 {
1417                                         WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1418                                         return NULL;
1419                                 }
1420                         }
1421
1422                         log(DEBUG,"add_channel: about to walk banlist");
1423
1424                         /* check user against the channel banlist */
1425                         for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1426                         {
1427                                 if (match(user->GetFullHost(),i->data))
1428                                 {
1429                                         WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1430                                         return NULL;
1431                                 }
1432                         }
1433
1434                         log(DEBUG,"add_channel: bans checked");
1435
1436                         user->RemoveInvite(Ptr->name);
1437
1438                         log(DEBUG,"add_channel: invites removed");
1439
1440                 }
1441                 created = 1;
1442         }
1443
1444         log(DEBUG,"Passed channel checks");
1445
1446         for (i =0; i != MAXCHANS; i++)
1447         {
1448                 if (user->chans[i].channel == NULL)
1449                 {
1450                         log(DEBUG,"Adding into their channel list");
1451
1452                         if (created == 2)
1453                         {
1454                                 /* first user in is given ops */
1455                                 user->chans[i].uc_modes = UCMODE_OP;
1456                         }
1457                         else
1458                         {
1459                                 user->chans[i].uc_modes = 0;
1460                         }
1461                         user->chans[i].channel = Ptr;
1462                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1463
1464                         log(DEBUG,"Sent JOIN to client");
1465
1466                         if (Ptr->topicset)
1467                         {
1468                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1469                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1470                         }
1471                         userlist(user,Ptr);
1472                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1473                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1474                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1475                         FOREACH_MOD OnUserJoin(user,Ptr);
1476                         return Ptr;
1477                 }
1478         }
1479         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1480         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1481         return NULL;
1482 }
1483
1484 /* remove a channel from a users record, and remove the record from memory
1485  * if the channel has become empty */
1486
1487 chanrec* del_channel(userrec *user, const char* cname, const char* reason)
1488 {
1489         if ((!user) || (!cname))
1490         {
1491                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1492                 return NULL;
1493         }
1494
1495         int i = 0;
1496         chanrec* Ptr;
1497         int created = 0;
1498
1499         if ((!cname) || (!user))
1500         {
1501                 return NULL;
1502         }
1503
1504         Ptr = FindChan(cname);
1505
1506         if (!Ptr)
1507         {
1508                 return NULL;
1509         }
1510
1511         FOREACH_MOD OnUserPart(user,Ptr);
1512         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1513
1514         for (i =0; i != MAXCHANS; i++)
1515         {
1516                 /* zap it from the channel list of the user */
1517                 if (user->chans[i].channel == Ptr)
1518                 {
1519                         if (reason)
1520                         {
1521                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1522                         }
1523                         else
1524                         {
1525                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1526                         }
1527                         user->chans[i].uc_modes = 0;
1528                         user->chans[i].channel = NULL;
1529                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1530                         break;
1531                 }
1532         }
1533
1534         /* if there are no users left on the channel */
1535         if (!usercount(Ptr))
1536         {
1537                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1538
1539                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1540
1541                 /* kill the record */
1542                 if (iter != chanlist.end())
1543                 {
1544                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1545                         delete iter->second;
1546                         chanlist.erase(iter);
1547                 }
1548         }
1549 }
1550
1551
1552 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1553 {
1554         if ((!src) || (!user) || (!Ptr) || (!reason))
1555         {
1556                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1557                 return;
1558         }
1559
1560         int i = 0;
1561         int created = 0;
1562
1563         if ((!Ptr) || (!user) || (!src))
1564         {
1565                 return;
1566         }
1567
1568         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1569
1570         if (!has_channel(user,Ptr))
1571         {
1572                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1573                 return;
1574         }
1575         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1576         {
1577                 if (cstatus(src,Ptr) == STATUS_HOP)
1578                 {
1579                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1580                 }
1581                 else
1582                 {
1583                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1584                 }
1585
1586                 return;
1587         }
1588
1589         for (i =0; i != MAXCHANS; i++)
1590         {
1591                 /* zap it from the channel list of the user */
1592                 if (user->chans[i].channel == Ptr)
1593                 {
1594                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1595                         user->chans[i].uc_modes = 0;
1596                         user->chans[i].channel = NULL;
1597                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1598                         break;
1599                 }
1600         }
1601
1602         /* if there are no users left on the channel */
1603         if (!usercount(Ptr))
1604         {
1605                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1606
1607                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1608
1609                 /* kill the record */
1610                 if (iter != chanlist.end())
1611                 {
1612                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1613                         delete iter->second;
1614                         chanlist.erase(iter);
1615                 }
1616         }
1617 }
1618
1619
1620 /* returns 1 if user u has channel c in their record, 0 if not */
1621
1622 int has_channel(userrec *u, chanrec *c)
1623 {
1624         int i = 0;
1625
1626         if ((!u) || (!c))
1627         {
1628                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1629                 return 0;
1630         }
1631         for (i =0; i != MAXCHANS; i++)
1632         {
1633                 if (u->chans[i].channel == c)
1634                 {
1635                         return 1;
1636                 }
1637         }
1638         return 0;
1639 }
1640
1641 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1642 {
1643         userrec *d;
1644         int i;
1645
1646         if ((!user) || (!dest) || (!chan))
1647         {
1648                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1649                 return 0;
1650         }
1651         if (status != STATUS_OP)
1652         {
1653                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1654                 return 0;
1655         }
1656         else
1657         {
1658                 if (!isnick(dest))
1659                 {
1660                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1661                         return 0;
1662                 }
1663                 d = Find(dest);
1664                 if (!d)
1665                 {
1666                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1667                         return 0;
1668                 }
1669                 else
1670                 {
1671                         for (i = 0; i != MAXCHANS; i++)
1672                         {
1673                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1674                                 {
1675                                         if (d->chans[i].uc_modes & UCMODE_OP)
1676                                         {
1677                                                 /* mode already set on user, dont allow multiple */
1678                                                 return 0;
1679                                         }
1680                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1681                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1682                                 }
1683                         }
1684                 }
1685         }
1686         return 1;
1687 }
1688
1689 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1690 {
1691         userrec *d;
1692         int i;
1693
1694         if ((!user) || (!dest) || (!chan))
1695         {
1696                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1697                 return 0;
1698         }
1699         if (status != STATUS_OP)
1700         {
1701                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1702                 return 0;
1703         }
1704         else
1705         {
1706                 d = Find(dest);
1707                 if (!isnick(dest))
1708                 {
1709                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1710                         return 0;
1711                 }
1712                 if (!d)
1713                 {
1714                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1715                         return 0;
1716                 }
1717                 else
1718                 {
1719                         for (i = 0; i != MAXCHANS; i++)
1720                         {
1721                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1722                                 {
1723                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1724                                         {
1725                                                 /* mode already set on user, dont allow multiple */
1726                                                 return 0;
1727                                         }
1728                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1729                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1730                                 }
1731                         }
1732                 }
1733         }
1734         return 1;
1735 }
1736
1737 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1738 {
1739         userrec *d;
1740         int i;
1741
1742         if ((!user) || (!dest) || (!chan))
1743         {
1744                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1745                 return 0;
1746         }
1747         if (status < STATUS_HOP)
1748         {
1749                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1750                 return 0;
1751         }
1752         else
1753         {
1754                 d = Find(dest);
1755                 if (!isnick(dest))
1756                 {
1757                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1758                         return 0;
1759                 }
1760                 if (!d)
1761                 {
1762                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1763                         return 0;
1764                 }
1765                 else
1766                 {
1767                         for (i = 0; i != MAXCHANS; i++)
1768                         {
1769                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1770                                 {
1771                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1772                                         {
1773                                                 /* mode already set on user, dont allow multiple */
1774                                                 return 0;
1775                                         }
1776                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1777                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1778                                 }
1779                         }
1780                 }
1781         }
1782         return 1;
1783 }
1784
1785 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1786 {
1787         userrec *d;
1788         int i;
1789
1790         if ((!user) || (!dest) || (!chan))
1791         {
1792                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1793                 return 0;
1794         }
1795         if (status != STATUS_OP)
1796         {
1797                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1798                 return 0;
1799         }
1800         else
1801         {
1802                 d = Find(dest);
1803                 if (!isnick(dest))
1804                 {
1805                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1806                         return 0;
1807                 }
1808                 if (!d)
1809                 {
1810                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1811                         return 0;
1812                 }
1813                 else
1814                 {
1815                         for (i = 0; i != MAXCHANS; i++)
1816                         {
1817                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1818                                 {
1819                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
1820                                         {
1821                                                 /* mode already set on user, dont allow multiple */
1822                                                 return 0;
1823                                         }
1824                                         d->chans[i].uc_modes ^= UCMODE_OP;
1825                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
1826                                 }
1827                         }
1828                 }
1829         }
1830         return 1;
1831 }
1832
1833 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
1834 {
1835         userrec *d;
1836         int i;
1837
1838         if ((!user) || (!dest) || (!chan))
1839         {
1840                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
1841                 return 0;
1842         }
1843         if (status != STATUS_OP)
1844         {
1845                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1846                 return 0;
1847         }
1848         else
1849         {
1850                 d = Find(dest);
1851                 if (!isnick(dest))
1852                 {
1853                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1854                         return 0;
1855                 }
1856                 if (!d)
1857                 {
1858                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1859                         return 0;
1860                 }
1861                 else
1862                 {
1863                         for (i = 0; i != MAXCHANS; i++)
1864                         {
1865                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1866                                 {
1867                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
1868                                         {
1869                                                 /* mode already set on user, dont allow multiple */
1870                                                 return 0;
1871                                         }
1872                                         d->chans[i].uc_modes ^= UCMODE_HOP;
1873                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
1874                                 }
1875                         }
1876                 }
1877         }
1878         return 1;
1879 }
1880
1881 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
1882 {
1883         userrec *d;
1884         int i;
1885
1886         if ((!user) || (!dest) || (!chan))
1887         {
1888                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
1889                 return 0;
1890         }
1891         if (status < STATUS_HOP)
1892         {
1893                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1894                 return 0;
1895         }
1896         else
1897         {
1898                 d = Find(dest);
1899                 if (!isnick(dest))
1900                 {
1901                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1902                         return 0;
1903                 }
1904                 if (!d)
1905                 {
1906                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1907                         return 0;
1908                 }
1909                 else
1910                 {
1911                         for (i = 0; i != MAXCHANS; i++)
1912                         {
1913                                 if ((d->chans[i].channel == chan) && (chan != NULL))
1914                                 {
1915                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
1916                                         {
1917                                                 /* mode already set on user, dont allow multiple */
1918                                                 return 0;
1919                                         }
1920                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
1921                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
1922                                 }
1923                         }
1924                 }
1925         }
1926         return 1;
1927 }
1928
1929 void TidyBan(char *ban)
1930 {
1931         if (!ban) {
1932                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
1933                 return;
1934         }
1935
1936         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
1937
1938         strcpy(temp,ban);
1939
1940         char* pos_of_pling = strchr(temp,'!');
1941         char* pos_of_at = strchr(temp,'@');
1942
1943         pos_of_pling[0] = '\0';
1944         pos_of_at[0] = '\0';
1945         pos_of_pling++;
1946         pos_of_at++;
1947
1948         strncpy(NICK,temp,NICKMAX);
1949         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
1950         strncpy(HOST,pos_of_at,160);
1951
1952         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
1953 }
1954
1955 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
1956 {
1957         if ((!user) || (!dest) || (!chan)) {
1958                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
1959                 return 0;
1960         }
1961
1962         BanItem b;
1963         if ((!user) || (!dest) || (!chan))
1964                 return 0;
1965         if (strchr(dest,'!')==0)
1966                 return 0;
1967         if (strchr(dest,'@')==0)
1968                 return 0;
1969         for (int i = 0; i < strlen(dest); i++)
1970                 if (dest[i] < 32)
1971                         return 0;
1972         for (int i = 0; i < strlen(dest); i++)
1973                 if (dest[i] > 126)
1974                         return 0;
1975         int c = 0;
1976         for (int i = 0; i < strlen(dest); i++)
1977                 if (dest[i] == '!')
1978                         c++;
1979         if (c>1)
1980                 return 0;
1981         c = 0;
1982         for (int i = 0; i < strlen(dest); i++)
1983                 if (dest[i] == '@')
1984                         c++;
1985         if (c>1)
1986                 return 0;
1987         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
1988
1989         TidyBan(dest);
1990         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
1991         {
1992                 if (!strcasecmp(i->data,dest))
1993                 {
1994                         // dont allow a user to set the same ban twice
1995                         return 0;
1996                 }
1997         }
1998
1999         b.set_time = time(NULL);
2000         strncpy(b.data,dest,MAXBUF);
2001         strncpy(b.set_by,user->nick,NICKMAX);
2002         chan->bans.push_back(b);
2003         return 1;
2004 }
2005
2006 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2007 {
2008         if ((!user) || (!dest) || (!chan)) {
2009                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2010                 return 0;
2011         }
2012
2013         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2014         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2015         {
2016                 if (!strcasecmp(i->data,dest))
2017                 {
2018                         chan->bans.erase(i);
2019                         return 1;
2020                 }
2021         }
2022         return 0;
2023 }
2024
2025 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode)
2026 {
2027         if ((!parameters) || (!user)) {
2028                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2029                 return;
2030         }
2031
2032
2033         char modelist[MAXBUF];
2034         char outlist[MAXBUF];
2035         char outstr[MAXBUF];
2036         char outpars[32][MAXBUF];
2037         int param = 2;
2038         int pc = 0;
2039         int ptr = 0;
2040         int mdir = 1;
2041         int r = 0;
2042         bool k_set = false, l_set = false;
2043
2044         if (pcnt < 2)
2045         {
2046                 return;
2047         }
2048
2049         log(DEBUG,"process_modes: start");
2050
2051         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2052                                         /* parameters[2] onwards are parameters for
2053                                          * modes that require them :) */
2054         strcpy(outlist,"+");
2055         mdir = 1;
2056
2057         log(DEBUG,"process_modes: modelist: %s",modelist);
2058
2059         for (ptr = 0; ptr < strlen(modelist); ptr++)
2060         {
2061                 r = 0;
2062
2063                 {
2064                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2065                         char modechar = modelist[ptr];
2066                         switch (modelist[ptr])
2067                         {
2068                                 case '-':
2069                                         if (mdir != 0)
2070                                         {
2071                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2072                                                 {
2073                                                         outlist[strlen(outlist)-1] = '-';
2074                                                 }
2075                                                 else
2076                                                 {
2077                                                         strcat(outlist,"-");
2078                                                 }
2079                                         }
2080                                         mdir = 0;
2081
2082                                 break;
2083
2084                                 case '+':
2085                                         if (mdir != 1)
2086                                         {
2087                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2088                                                 {
2089                                                         outlist[strlen(outlist)-1] = '+';
2090                                                 }
2091                                                 else
2092                                                 {
2093                                                         strcat(outlist,"+");
2094                                                 }
2095                                         }
2096                                         mdir = 1;
2097                                 break;
2098
2099                                 case 'o':
2100                                         if ((param >= pcnt)) break;
2101                                         if (mdir == 1)
2102                                         {
2103                                                 r = give_ops(user,parameters[param++],chan,status);
2104                                         }
2105                                         else
2106                                         {
2107                                                 r = take_ops(user,parameters[param++],chan,status);
2108                                         }
2109                                         if (r)
2110                                         {
2111                                                 strcat(outlist,"o");
2112                                                 strcpy(outpars[pc++],parameters[param-1]);
2113                                         }
2114                                 break;
2115
2116                                 case 'h':
2117                                         if ((param >= pcnt)) break;
2118                                         if (mdir == 1)
2119                                         {
2120                                                 r = give_hops(user,parameters[param++],chan,status);
2121                                         }
2122                                         else
2123                                         {
2124                                                 r = take_hops(user,parameters[param++],chan,status);
2125                                         }
2126                                         if (r)
2127                                         {
2128                                                 strcat(outlist,"h");
2129                                                 strcpy(outpars[pc++],parameters[param-1]);
2130                                         }
2131                                 break;
2132
2133
2134                                 case 'v':
2135                                         if ((param >= pcnt)) break;
2136                                         if (mdir == 1)
2137                                         {
2138                                                 r = give_voice(user,parameters[param++],chan,status);
2139                                         }
2140                                         else
2141                                         {
2142                                                 r = take_voice(user,parameters[param++],chan,status);
2143                                         }
2144                                         if (r)
2145                                         {
2146                                                 strcat(outlist,"v");
2147                                                 strcpy(outpars[pc++],parameters[param-1]);
2148                                         }
2149                                 break;
2150
2151                                 case 'b':
2152                                         if ((param >= pcnt)) break;
2153                                         if (mdir == 1)
2154                                         {
2155                                                 r = add_ban(user,parameters[param++],chan,status);
2156                                         }
2157                                         else
2158                                         {
2159                                                 r = take_ban(user,parameters[param++],chan,status);
2160                                         }
2161                                         if (r)
2162                                         {
2163                                                 strcat(outlist,"b");
2164                                                 strcpy(outpars[pc++],parameters[param-1]);
2165                                         }
2166                                 break;
2167
2168
2169                                 case 'k':
2170                                         if ((param >= pcnt))
2171                                                 break;
2172
2173                                         if (mdir == 1)
2174                                         {
2175                                                 if (k_set)
2176                                                         break;
2177
2178                                                 if (!strcmp(chan->key,""))
2179                                                 {
2180                                                         strcat(outlist,"k");
2181                                                         char key[MAXBUF];
2182                                                         strcpy(key,parameters[param++]);
2183                                                         if (strlen(key)>32) {
2184                                                                 key[31] = '\0';
2185                                                         }
2186                                                         strcpy(outpars[pc++],key);
2187                                                         strcpy(chan->key,key);
2188                                                         k_set = true;
2189                                                 }
2190                                         }
2191                                         else
2192                                         {
2193                                                 /* checks on -k are case sensitive and only accurate to the
2194                                                    first 32 characters */
2195                                                 char key[MAXBUF];
2196                                                 strcpy(key,parameters[param++]);
2197                                                 if (strlen(key)>32) {
2198                                                         key[31] = '\0';
2199                                                 }
2200                                                 /* only allow -k if correct key given */
2201                                                 if (!strcmp(chan->key,key))
2202                                                 {
2203                                                         strcat(outlist,"k");
2204                                                         strcpy(chan->key,"");
2205                                                         strcpy(outpars[pc++],key);
2206                                                 }
2207                                         }
2208                                 break;
2209
2210                                 case 'l':
2211                                         if (mdir == 0)
2212                                         {
2213                                                 if (chan->limit)
2214                                                 {
2215                                                         strcat(outlist,"l");
2216                                                         chan->limit = 0;
2217                                                 }
2218                                         }
2219
2220                                         if ((param >= pcnt)) break;
2221                                         if (mdir == 1)
2222                                         {
2223                                                 if (l_set)
2224                                                         break;
2225
2226                                                 bool invalid = false;
2227                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2228                                                 {
2229                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2230                                                         {
2231                                                                 invalid = true;
2232                                                         }
2233                                                 }
2234                                                 if (atoi(parameters[param]) < 1)
2235                                                 {
2236                                                         invalid = true;
2237                                                 }
2238
2239                                                 if (invalid)
2240                                                         break;
2241
2242                                                 chan->limit = atoi(parameters[param]);
2243                                                 if (chan->limit)
2244                                                 {
2245                                                         strcat(outlist,"l");
2246                                                         strcpy(outpars[pc++],parameters[param++]);
2247                                                         l_set = true;
2248                                                 }
2249                                         }
2250                                 break;
2251
2252                                 case 'i':
2253                                         if (chan->inviteonly != mdir)
2254                                         {
2255                                                 strcat(outlist,"i");
2256                                         }
2257                                         chan->inviteonly = mdir;
2258                                 break;
2259
2260                                 case 't':
2261                                         if (chan->topiclock != mdir)
2262                                         {
2263                                                 strcat(outlist,"t");
2264                                         }
2265                                         chan->topiclock = mdir;
2266                                 break;
2267
2268                                 case 'n':
2269                                         if (chan->noexternal != mdir)
2270                                         {
2271                                                 strcat(outlist,"n");
2272                                         }
2273                                         chan->noexternal = mdir;
2274                                 break;
2275
2276                                 case 'm':
2277                                         if (chan->moderated != mdir)
2278                                         {
2279                                                 strcat(outlist,"m");
2280                                         }
2281                                         chan->moderated = mdir;
2282                                 break;
2283
2284                                 case 's':
2285                                         if (chan->secret != mdir)
2286                                         {
2287                                                 strcat(outlist,"s");
2288                                                 if (chan->c_private)
2289                                                 {
2290                                                         chan->c_private = 0;
2291                                                         if (mdir)
2292                                                         {
2293                                                                 strcat(outlist,"-p+");
2294                                                         }
2295                                                         else
2296                                                         {
2297                                                                 strcat(outlist,"+p-");
2298                                                         }
2299                                                 }
2300                                         }
2301                                         chan->secret = mdir;
2302                                 break;
2303
2304                                 case 'p':
2305                                         if (chan->c_private != mdir)
2306                                         {
2307                                                 strcat(outlist,"p");
2308                                                 if (chan->secret)
2309                                                 {
2310                                                         chan->secret = 0;
2311                                                         if (mdir)
2312                                                         {
2313                                                                 strcat(outlist,"-s+");
2314                                                         }
2315                                                         else
2316                                                         {
2317                                                                 strcat(outlist,"+s-");
2318                                                         }
2319                                                 }
2320                                         }
2321                                         chan->c_private = mdir;
2322                                 break;
2323
2324                                 default:
2325                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2326                                         string_list p;
2327                                         p.clear();
2328                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2329                                         {
2330                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2331                                                 break;
2332                                         }
2333                                         if (ModeDefined(modechar,MT_CHANNEL))
2334                                         {
2335                                                 log(DEBUG,"A module has claimed this mode");
2336                                                 if (param<pcnt)
2337                                                 {
2338                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2339                                                         {
2340                                                                 p.push_back(parameters[param]);
2341                                                         }
2342                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2343                                                         {
2344                                                                 p.push_back(parameters[param]);
2345                                                         }
2346                                                 }
2347                                                 bool handled = false;
2348                                                 if (param>=pcnt)
2349                                                 {
2350                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2351                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2352                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2353                                                         {
2354                                                                 handled = true;
2355                                                                 param++;
2356                                                         }
2357                                                 }
2358                                                 for (int i = 0; i <= MODCOUNT; i++)
2359                                                 {
2360                                                         if (!handled)
2361                                                         {
2362                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2363                                                                 {
2364                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2365                                                                         char app[] = {modechar, 0};
2366                                                                         if (ptr>0)
2367                                                                         {
2368                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2369                                                                                 {
2370                                                                                         strcat(outlist, app);
2371                                                                                 }
2372                                                                                 else if (!strchr(outlist,modechar))
2373                                                                                 {
2374                                                                                         strcat(outlist, app);
2375                                                                                 }
2376                                                                         }
2377                                                                         chan->SetCustomMode(modechar,mdir);
2378                                                                         // include parameters in output if mode has them
2379                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2380                                                                         {
2381                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2382                                                                                 strcpy(outpars[pc++],parameters[param++]);
2383                                                                         }
2384                                                                         // break, because only one module can handle the mode.
2385                                                                         handled = true;
2386                                                                 }
2387                                                         }
2388                                                 }
2389                                         }
2390                                 break;
2391
2392                         }
2393                 }
2394         }
2395
2396         /* this ensures only the *valid* modes are sent out onto the network */
2397         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2398         {
2399                 outlist[strlen(outlist)-1] = '\0';
2400         }
2401         if (strcmp(outlist,""))
2402         {
2403                 strcpy(outstr,outlist);
2404                 for (ptr = 0; ptr < pc; ptr++)
2405                 {
2406                         strcat(outstr," ");
2407                         strcat(outstr,outpars[ptr]);
2408                 }
2409                 if (servermode)
2410                 {
2411                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2412                 }
2413                 else
2414                 {
2415                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2416                 }
2417         }
2418 }
2419
2420 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2421
2422 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2423 {
2424         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2425         // RFC1459 specified modes
2426         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2427         {
2428                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2429                 return true;
2430         }
2431
2432         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2433         if ((strchr(sourcemodes,'o')) && (!adding))
2434         {
2435                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2436                 return true;
2437         }
2438         else if (umode == 'o')
2439         {
2440                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2441                 return false;
2442         }
2443
2444         // process any module-defined modes that need oper
2445         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2446         {
2447                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2448                 return true;
2449         }
2450         else
2451         if (ModeDefined(umode,MT_CLIENT))
2452         {
2453                 // process any module-defined modes that don't need oper
2454                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2455                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2456                 {
2457                         // no, this mode needs oper, and this user 'aint got what it takes!
2458                         return false;
2459                 }
2460                 return true;
2461         }
2462
2463         // anything else - return false.
2464         log(DEBUG,"umode %c not known by any ruleset",umode);
2465         return false;
2466 }
2467
2468 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2469 {
2470         string_list p;
2471         p.clear();
2472         if (ModeDefined(umode,MT_CLIENT))
2473         {
2474                 for (int i = 0; i <= MODCOUNT; i++)
2475                 {
2476                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2477                         {
2478                                 log(DEBUG,"Module claims umode %c",umode);
2479                                 return true;
2480                         }
2481                 }
2482                 log(DEBUG,"No module claims umode %c",umode);
2483                 return false;
2484         }
2485         else
2486         {
2487                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2488                 return false;
2489         }
2490 }
2491
2492 void handle_mode(char **parameters, int pcnt, userrec *user)
2493 {
2494         chanrec* Ptr;
2495         userrec* dest;
2496         int can_change,i;
2497         int direction = 1;
2498         char outpars[MAXBUF];
2499
2500         dest = Find(parameters[0]);
2501
2502         if ((dest) && (pcnt == 1))
2503         {
2504                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2505                 return;
2506         }
2507
2508         if ((dest) && (pcnt > 1))
2509         {
2510                 char dmodes[MAXBUF];
2511                 strncpy(dmodes,dest->modes,MAXBUF);
2512                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2513
2514                 can_change = 0;
2515                 if (user != dest)
2516                 {
2517                         if (strchr(user->modes,'o'))
2518                         {
2519                                 can_change = 1;
2520                         }
2521                 }
2522                 else
2523                 {
2524                         can_change = 1;
2525                 }
2526                 if (!can_change)
2527                 {
2528                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2529                         return;
2530                 }
2531
2532                 strcpy(outpars,"+");
2533                 direction = 1;
2534
2535                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2536                         return;
2537
2538                 for (i = 0; i < strlen(parameters[1]); i++)
2539                 {
2540                         if (parameters[1][i] == '+')
2541                         {
2542                                 if (direction != 1)
2543                                 {
2544                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2545                                         {
2546                                                 outpars[strlen(outpars)-1] = '+';
2547                                         }
2548                                         else
2549                                         {
2550                                                 strcat(outpars,"+");
2551                                         }
2552                                 }
2553                                 direction = 1;
2554                         }
2555                         else
2556                         if (parameters[1][i] == '-')
2557                         {
2558                                 if (direction != 0)
2559                                 {
2560                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2561                                         {
2562                                                 outpars[strlen(outpars)-1] = '-';
2563                                         }
2564                                         else
2565                                         {
2566                                                 strcat(outpars,"-");
2567                                         }
2568                                 }
2569                                 direction = 0;
2570                         }
2571                         else
2572                         {
2573                                 can_change = 0;
2574                                 if (strchr(user->modes,'o'))
2575                                 {
2576                                         can_change = 1;
2577                                 }
2578                                 else
2579                                 {
2580                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2581                                         {
2582                                                 can_change = 1;
2583                                         }
2584                                 }
2585                                 if (can_change)
2586                                 {
2587                                         if (direction == 1)
2588                                         {
2589                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2590                                                 {
2591                                                         char umode = parameters[1][i];
2592                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2593                                                         {
2594                                                                 dmodes[strlen(dmodes)+1]='\0';
2595                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2596                                                                 outpars[strlen(outpars)+1]='\0';
2597                                                                 outpars[strlen(outpars)] = parameters[1][i];
2598                                                         }
2599                                                 }
2600                                         }
2601                                         else
2602                                         {
2603                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2604                                                 {
2605                                                         char umode = parameters[1][i];
2606                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2607                                                         {
2608                                                                 int q = 0;
2609                                                                 char temp[MAXBUF];
2610                                                                 char moo[MAXBUF];
2611
2612                                                                 outpars[strlen(outpars)+1]='\0';
2613                                                                 outpars[strlen(outpars)] = parameters[1][i];
2614
2615                                                                 strcpy(temp,"");
2616                                                                 for (q = 0; q < strlen(dmodes); q++)
2617                                                                 {
2618                                                                         if (dmodes[q] != parameters[1][i])
2619                                                                         {
2620                                                                                 moo[0] = dmodes[q];
2621                                                                                 moo[1] = '\0';
2622                                                                                 strcat(temp,moo);
2623                                                                         }
2624                                                                 }
2625                                                                 strcpy(dmodes,temp);
2626                                                         }
2627                                                 }
2628                                         }
2629                                 }
2630                         }
2631                 }
2632                 if (strlen(outpars))
2633                 {
2634                         char b[MAXBUF];
2635                         strcpy(b,"");
2636                         int z = 0;
2637                         int i = 0;
2638                         while (i < strlen (outpars))
2639                         {
2640                                 b[z++] = outpars[i++];
2641                                 b[z] = '\0';
2642                                 if (i<strlen(outpars)-1)
2643                                 {
2644                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2645                                         {
2646                                                 // someones playing silly buggers and trying
2647                                                 // to put a +- or -+ into the line...
2648                                                 i++;
2649                                         }
2650                                 }
2651                                 if (i == strlen(outpars)-1)
2652                                 {
2653                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2654                                         {
2655                                                 i++;
2656                                         }
2657                                 }
2658                         }
2659
2660                         z = strlen(b)-1;
2661                         if ((b[z] == '-') || (b[z] == '+'))
2662                                 b[z] == '\0';
2663
2664                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2665                                 return;
2666
2667                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2668
2669                         if (strlen(dmodes)>MAXMODES)
2670                         {
2671                                 dmodes[MAXMODES-1] = '\0';
2672                         }
2673                         log(DEBUG,"Stripped mode line");
2674                         log(DEBUG,"Line dest is now %s",dmodes);
2675                         strncpy(dest->modes,dmodes,MAXMODES);
2676
2677                 }
2678
2679                 return;
2680         }
2681
2682         Ptr = FindChan(parameters[0]);
2683         if (Ptr)
2684         {
2685                 if (pcnt == 1)
2686                 {
2687                         /* just /modes #channel */
2688                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2689                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2690                         return;
2691                 }
2692                 else
2693                 if (pcnt == 2)
2694                 {
2695                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2696                         {
2697
2698                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2699                                 {
2700                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2701                                 }
2702                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2703                         }
2704                 }
2705
2706                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2707                 {
2708                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
2709                         return;
2710                 }
2711
2712                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false);
2713         }
2714         else
2715         {
2716                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
2717         }
2718 }
2719
2720
2721
2722
2723 void server_mode(char **parameters, int pcnt, userrec *user)
2724 {
2725         chanrec* Ptr;
2726         userrec* dest;
2727         int can_change,i;
2728         int direction = 1;
2729         char outpars[MAXBUF];
2730
2731         dest = Find(parameters[0]);
2732
2733         // fix: ChroNiCk found this - we cant use this as debug if its null!
2734         if (dest)
2735         {
2736                 log(DEBUG,"server_mode on %s",dest->nick);
2737         }
2738
2739         if ((dest) && (pcnt > 1))
2740         {
2741                 log(DEBUG,"params > 1");
2742
2743                 char dmodes[MAXBUF];
2744                 strncpy(dmodes,dest->modes,MAXBUF);
2745
2746                 strcpy(outpars,"+");
2747                 direction = 1;
2748
2749                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2750                         return;
2751
2752                 for (i = 0; i < strlen(parameters[1]); i++)
2753                 {
2754                         if (parameters[1][i] == '+')
2755                         {
2756                                 if (direction != 1)
2757                                 {
2758                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2759                                         {
2760                                                 outpars[strlen(outpars)-1] = '+';
2761                                         }
2762                                         else
2763                                         {
2764                                                 strcat(outpars,"+");
2765                                         }
2766                                 }
2767                                 direction = 1;
2768                         }
2769                         else
2770                         if (parameters[1][i] == '-')
2771                         {
2772                                 if (direction != 0)
2773                                 {
2774                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2775                                         {
2776                                                 outpars[strlen(outpars)-1] = '-';
2777                                         }
2778                                         else
2779                                         {
2780                                                 strcat(outpars,"-");
2781                                         }
2782                                 }
2783                                 direction = 0;
2784                         }
2785                         else
2786                         {
2787                                 log(DEBUG,"begin mode processing entry");
2788                                 can_change = 1;
2789                                 if (can_change)
2790                                 {
2791                                         if (direction == 1)
2792                                         {
2793                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
2794                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2795                                                 {
2796                                                         char umode = parameters[1][i];
2797                                                         log(DEBUG,"umode %c is an allowed umode",umode);
2798                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2799                                                         {
2800                                                                 dmodes[strlen(dmodes)+1]='\0';
2801                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2802                                                                 outpars[strlen(outpars)+1]='\0';
2803                                                                 outpars[strlen(outpars)] = parameters[1][i];
2804                                                         }
2805                                                 }
2806                                         }
2807                                         else
2808                                         {
2809                                                 // can only remove a mode they already have
2810                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
2811                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2812                                                 {
2813                                                         char umode = parameters[1][i];
2814                                                         log(DEBUG,"umode %c is an allowed umode",umode);
2815                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2816                                                         {
2817                                                                 int q = 0;
2818                                                                 char temp[MAXBUF];
2819                                                                 char moo[MAXBUF];
2820
2821                                                                 outpars[strlen(outpars)+1]='\0';
2822                                                                 outpars[strlen(outpars)] = parameters[1][i];
2823
2824                                                                 strcpy(temp,"");
2825                                                                 for (q = 0; q < strlen(dmodes); q++)
2826                                                                 {
2827                                                                         if (dmodes[q] != parameters[1][i])
2828                                                                         {
2829                                                                                 moo[0] = dmodes[q];
2830                                                                                 moo[1] = '\0';
2831                                                                                 strcat(temp,moo);
2832                                                                         }
2833                                                                 }
2834                                                                 strcpy(dmodes,temp);
2835                                                         }
2836                                                 }
2837                                         }
2838                                 }
2839                         }
2840                 }
2841                 if (strlen(outpars))
2842                 {
2843                         char b[MAXBUF];
2844                         strcpy(b,"");
2845                         int z = 0;
2846                         int i = 0;
2847                         while (i < strlen (outpars))
2848                         {
2849                                 b[z++] = outpars[i++];
2850                                 b[z] = '\0';
2851                                 if (i<strlen(outpars)-1)
2852                                 {
2853                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2854                                         {
2855                                                 // someones playing silly buggers and trying
2856                                                 // to put a +- or -+ into the line...
2857                                                 i++;
2858                                         }
2859                                 }
2860                                 if (i == strlen(outpars)-1)
2861                                 {
2862                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2863                                         {
2864                                                 i++;
2865                                         }
2866                                 }
2867                         }
2868
2869                         z = strlen(b)-1;
2870                         if ((b[z] == '-') || (b[z] == '+'))
2871                                 b[z] == '\0';
2872
2873                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2874                                 return;
2875
2876                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2877
2878                         if (strlen(dmodes)>MAXMODES)
2879                         {
2880                                 dmodes[MAXMODES-1] = '\0';
2881                         }
2882                         log(DEBUG,"Stripped mode line");
2883                         log(DEBUG,"Line dest is now %s",dmodes);
2884                         strncpy(dest->modes,dmodes,MAXMODES);
2885
2886                 }
2887
2888                 return;
2889         }
2890
2891         Ptr = FindChan(parameters[0]);
2892         if (Ptr)
2893         {
2894                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true);
2895         }
2896         else
2897         {
2898                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
2899         }
2900 }
2901
2902
2903 /* This function pokes and hacks at a parameter list like the following:
2904  *
2905  * PART #winbot, #darkgalaxy :m00!
2906  *
2907  * to turn it into a series of individual calls like this:
2908  *
2909  * PART #winbot :m00!
2910  * PART #darkgalaxy :m00!
2911  *
2912  * The seperate calls are sent to a callback function provided by the caller
2913  * (the caller will usually call itself recursively). The callback function
2914  * must be a command handler. Calling this function on a line with no list causes
2915  * no action to be taken. You must provide a starting and ending parameter number
2916  * where the range of the list can be found, useful if you have a terminating
2917  * parameter as above which is actually not part of the list, or parameters
2918  * before the actual list as well. This code is used by many functions which
2919  * can function as "one to list" (see the RFC) */
2920
2921 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
2922 {
2923         char plist[MAXBUF];
2924         char *param;
2925         char *pars[32];
2926         char blog[32][MAXBUF];
2927         char blog2[32][MAXBUF];
2928         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2929         char keystr[MAXBUF];
2930         char moo[MAXBUF];
2931
2932         for (i = 0; i <32; i++)
2933                 strcpy(blog[i],"");
2934
2935         for (i = 0; i <32; i++)
2936                 strcpy(blog2[i],"");
2937
2938         strcpy(moo,"");
2939         for (i = 0; i <10; i++)
2940         {
2941                 if (!parameters[i])
2942                 {
2943                         parameters[i] = moo;
2944                 }
2945         }
2946         if (joins)
2947         {
2948                 if (pcnt > 1) /* we have a key to copy */
2949                 {
2950                         strcpy(keystr,parameters[1]);
2951                 }
2952         }
2953
2954         if (!parameters[start])
2955         {
2956                 return 0;
2957         }
2958         if (!strchr(parameters[start],','))
2959         {
2960                 return 0;
2961         }
2962         strcpy(plist,"");
2963         for (i = start; i <= end; i++)
2964         {
2965                 if (parameters[i])
2966                 {
2967                         strcat(plist,parameters[i]);
2968                 }
2969         }
2970
2971         j = 0;
2972         param = plist;
2973
2974         t = strlen(plist);
2975         for (i = 0; i < t; i++)
2976         {
2977                 if (plist[i] == ',')
2978                 {
2979                         plist[i] = '\0';
2980                         strcpy(blog[j++],param);
2981                         param = plist+i+1;
2982                 }
2983         }
2984         strcpy(blog[j++],param);
2985         total = j;
2986
2987         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2988         {
2989                 strcat(keystr,",");
2990         }
2991
2992         if ((joins) && (keystr))
2993         {
2994                 if (strchr(keystr,','))
2995                 {
2996                         j = 0;
2997                         param = keystr;
2998                         t2 = strlen(keystr);
2999                         for (i = 0; i < t2; i++)
3000                         {
3001                                 if (keystr[i] == ',')
3002                                 {
3003                                         keystr[i] = '\0';
3004                                         strcpy(blog2[j++],param);
3005                                         param = keystr+i+1;
3006                                 }
3007                         }
3008                         strcpy(blog2[j++],param);
3009                         total2 = j;
3010                 }
3011         }
3012
3013         for (j = 0; j < total; j++)
3014         {
3015                 if (blog[j])
3016                 {
3017                         pars[0] = blog[j];
3018                 }
3019                 for (q = end; q < pcnt-1; q++)
3020                 {
3021                         if (parameters[q+1])
3022                         {
3023                                 pars[q-end+1] = parameters[q+1];
3024                         }
3025                 }
3026                 if ((joins) && (parameters[1]))
3027                 {
3028                         if (pcnt > 1)
3029                         {
3030                                 pars[1] = blog2[j];
3031                         }
3032                         else
3033                         {
3034                                 pars[1] = NULL;
3035                         }
3036                 }
3037                 /* repeatedly call the function with the hacked parameter list */
3038                 if ((joins) && (pcnt > 1))
3039                 {
3040                         if (pars[1])
3041                         {
3042                                 // pars[1] already set up and containing key from blog2[j]
3043                                 fn(pars,2,u);
3044                         }
3045                         else
3046                         {
3047                                 pars[1] = parameters[1];
3048                                 fn(pars,2,u);
3049                         }
3050                 }
3051                 else
3052                 {
3053                         fn(pars,pcnt-(end-start),u);
3054                 }
3055         }
3056
3057         return 1;
3058 }
3059
3060
3061 void handle_join(char **parameters, int pcnt, userrec *user)
3062 {
3063         chanrec* Ptr;
3064         int i = 0;
3065
3066         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3067                 return;
3068         if (parameters[0][0] == '#')
3069         {
3070                 Ptr = add_channel(user,parameters[0],parameters[1]);
3071         }
3072 }
3073
3074
3075 void handle_part(char **parameters, int pcnt, userrec *user)
3076 {
3077         chanrec* Ptr;
3078
3079         if (pcnt > 1)
3080         {
3081                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3082                         return;
3083                 del_channel(user,parameters[0],parameters[1]);
3084         }
3085         else
3086         {
3087                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3088                         return;
3089                 del_channel(user,parameters[0],NULL);
3090         }
3091 }
3092
3093 void handle_kick(char **parameters, int pcnt, userrec *user)
3094 {
3095         chanrec* Ptr = FindChan(parameters[0]);
3096         userrec* u   = Find(parameters[1]);
3097
3098         if ((!u) || (!Ptr))
3099         {
3100                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3101                 return;
3102         }
3103
3104         if (!has_channel(u,Ptr))
3105         {
3106                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3107                 return;
3108         }
3109
3110         if (pcnt > 2)
3111         {
3112                 char reason[MAXBUF];
3113                 strncpy(reason,parameters[2],MAXBUF);
3114                 if (strlen(reason)>MAXKICK)
3115                 {
3116                         reason[MAXKICK-1] = '\0';
3117                 }
3118
3119                 kick_channel(user,u,Ptr,reason);
3120         }
3121         else
3122         {
3123                 kick_channel(user,u,Ptr,user->nick);
3124         }
3125 }
3126
3127
3128 void handle_die(char **parameters, int pcnt, userrec *user)
3129 {
3130         log(DEBUG,"die: %s",user->nick);
3131         if (!strcmp(parameters[0],diepass))
3132         {
3133                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3134                 sleep(DieDelay);
3135                 Exit(ERROR);
3136         }
3137         else
3138         {
3139                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3140         }
3141 }
3142
3143 void handle_restart(char **parameters, int pcnt, userrec *user)
3144 {
3145         log(DEBUG,"restart: %s",user->nick);
3146         if (!strcmp(parameters[0],restartpass))
3147         {
3148                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3149                 sleep(DieDelay);
3150                 Exit(ERROR);
3151                 /* Will finish this later when i can be arsed :) */
3152         }
3153         else
3154         {
3155                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3156         }
3157 }
3158
3159
3160 void kill_link(userrec *user,const char* r)
3161 {
3162         user_hash::iterator iter = clientlist.find(user->nick);
3163
3164         char reason[MAXBUF];
3165
3166         strncpy(reason,r,MAXBUF);
3167
3168         if (strlen(reason)>MAXQUIT)
3169         {
3170                 reason[MAXQUIT-1] = '\0';
3171         }
3172
3173         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3174         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3175         log(DEBUG,"closing fd %d",user->fd);
3176
3177         /* bugfix, cant close() a nonblocking socket (sux!) */
3178         if (user->registered == 7) {
3179                 FOREACH_MOD OnUserQuit(user);
3180                 WriteCommonExcept(user,"QUIT :%s",reason);
3181         }
3182
3183         /* push the socket on a stack of sockets due to be closed at the next opportunity
3184          * 'Client exited' is an exception to this as it means the client side has already
3185          * closed the socket, we don't need to do it.
3186          */
3187         if (strcmp(reason,"Client exited"))
3188         {
3189                 fd_reap.push_back(user->fd);
3190         }
3191
3192         bool do_purge = false;
3193
3194         if (user->registered == 7) {
3195                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3196                 AddWhoWas(user);
3197         }
3198
3199         if (iter != clientlist.end())
3200         {
3201                 log(DEBUG,"deleting user hash value %d",iter->second);
3202                 if ((iter->second) && (user->registered == 7)) {
3203                         delete iter->second;
3204                 }
3205                 clientlist.erase(iter);
3206         }
3207
3208         if (user->registered == 7) {
3209                 purge_empty_chans();
3210         }
3211 }
3212
3213
3214 void handle_kill(char **parameters, int pcnt, userrec *user)
3215 {
3216         userrec *u = Find(parameters[0]);
3217         char killreason[MAXBUF];
3218
3219         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3220         if (u)
3221         {
3222                 WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3223                 // :Brain!brain@NetAdmin.chatspike.net KILL [Brain] :homer!NetAdmin.chatspike.net!Brain (test kill)
3224                 WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3225                 sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3226                 kill_link(u,killreason);
3227         }
3228         else
3229         {
3230                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3231         }
3232 }
3233
3234 void handle_summon(char **parameters, int pcnt, userrec *user)
3235 {
3236         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3237 }
3238
3239 void handle_users(char **parameters, int pcnt, userrec *user)
3240 {
3241         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3242 }
3243
3244
3245 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3246
3247 char* Passwd(userrec *user)
3248 {
3249         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3250         {
3251                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3252                 {
3253                         return i->pass;
3254                 }
3255         }
3256         return "";
3257 }
3258
3259 bool IsDenied(userrec *user)
3260 {
3261         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3262         {
3263                 if (match(user->host,i->host) && (i->type == CC_DENY))
3264                 {
3265                         return true;
3266                 }
3267         }
3268         return false;
3269 }
3270
3271
3272
3273 void handle_pass(char **parameters, int pcnt, userrec *user)
3274 {
3275         // Check to make sure they havnt registered -- Fix by FCS
3276         if (user->registered == 7)
3277         {
3278                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
3279                 return;
3280         }
3281         if (!strcasecmp(parameters[0],Passwd(user)))
3282         {
3283                 user->haspassed = true;
3284         }
3285 }
3286
3287 void handle_invite(char **parameters, int pcnt, userrec *user)
3288 {
3289         userrec* u = Find(parameters[0]);
3290         chanrec* c = FindChan(parameters[1]);
3291
3292         if ((!c) || (!u))
3293         {
3294                 if (!c)
3295                 {
3296                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3297                 }
3298                 else
3299                 {
3300                         if (c->inviteonly)
3301                         {
3302                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
3303                         }
3304                 }
3305
3306                 return;
3307         }
3308
3309         if (c->inviteonly)
3310         {
3311                 if (cstatus(user,c) < STATUS_HOP)
3312                 {
3313                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
3314                         return;
3315                 }
3316         }
3317         if (has_channel(u,c))
3318         {
3319                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
3320                 return;
3321         }
3322         u->InviteTo(c->name);
3323         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
3324         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
3325 }
3326
3327 void handle_topic(char **parameters, int pcnt, userrec *user)
3328 {
3329         chanrec* Ptr;
3330
3331         if (pcnt == 1)
3332         {
3333                 if (strlen(parameters[0]) <= CHANMAX)
3334                 {
3335                         Ptr = FindChan(parameters[0]);
3336                         if (Ptr)
3337                         {
3338                                 if (Ptr->topicset)
3339                                 {
3340                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
3341                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
3342                                 }
3343                                 else
3344                                 {
3345                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
3346                                 }
3347                         }
3348                         else
3349                         {
3350                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3351                         }
3352                 }
3353                 return;
3354         }
3355         else if (pcnt>1)
3356         {
3357                 if (strlen(parameters[0]) <= CHANMAX)
3358                 {
3359                         Ptr = FindChan(parameters[0]);
3360                         if (Ptr)
3361                         {
3362                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
3363                                 {
3364                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
3365                                         return;
3366                                 }
3367
3368                                 char topic[MAXBUF];
3369                                 strncpy(topic,parameters[1],MAXBUF);
3370                                 if (strlen(topic)>MAXTOPIC)
3371                                 {
3372                                         topic[MAXTOPIC-1] = '\0';
3373                                 }
3374
3375                                 strcpy(Ptr->topic,topic);
3376                                 strcpy(Ptr->setby,user->nick);
3377                                 Ptr->topicset = time(NULL);
3378                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
3379                         }
3380                         else
3381                         {
3382                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3383                         }
3384                 }
3385         }
3386 }
3387
3388 /* sends out an error notice to all connected clients (not to be used
3389  * lightly!) */
3390
3391 void send_error(char *s)
3392 {
3393         log(DEBUG,"send_error: %s",s);
3394         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3395         {
3396                 if (isnick(i->second->nick))
3397                 {
3398                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
3399                 }
3400                 else
3401                 {
3402                         // fix - unregistered connections receive ERROR, not NOTICE
3403                         Write(i->second->fd,"ERROR :%s",s);
3404                 }
3405         }
3406 }
3407
3408 void Error(int status)
3409 {
3410         signal (SIGALRM, SIG_IGN);
3411         signal (SIGPIPE, SIG_IGN);
3412         signal (SIGTERM, SIG_IGN);
3413         signal (SIGABRT, SIG_IGN);
3414         signal (SIGSEGV, SIG_IGN);
3415         signal (SIGURG, SIG_IGN);
3416         signal (SIGKILL, SIG_IGN);
3417         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
3418         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
3419         exit(status);
3420 }
3421
3422 int main (int argc, char *argv[])
3423 {
3424         Start();
3425         log(DEBUG,"*** InspIRCd starting up!");
3426         if (!FileExists(CONFIG_FILE))
3427         {
3428                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
3429                 log(DEBUG,"main: no config");
3430                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
3431                 Exit(ERROR);
3432         }
3433         if (argc > 1) {
3434                 if (!strcmp(argv[1],"-nofork")) {
3435                         nofork = true;
3436                 }
3437         }
3438         if (InspIRCd() == ERROR)
3439         {
3440                 log(DEBUG,"main: daemon function bailed");
3441                 printf("ERROR: could not initialise. Shutting down.\n");
3442                 Exit(ERROR);
3443         }
3444         Exit(TRUE);
3445         return 0;
3446 }
3447
3448 template<typename T> inline string ConvToStr(const T &in)
3449 {
3450         stringstream tmp;
3451         if (!(tmp << in)) return string();
3452         return tmp.str();
3453 }
3454
3455 /* re-allocates a nick in the user_hash after they change nicknames,
3456  * returns a pointer to the new user as it may have moved */
3457
3458 userrec* ReHashNick(char* Old, char* New)
3459 {
3460         user_hash::iterator newnick;
3461         user_hash::iterator oldnick = clientlist.find(Old);
3462
3463         log(DEBUG,"ReHashNick: %s %s",Old,New);
3464
3465         if (!strcasecmp(Old,New))
3466         {
3467                 log(DEBUG,"old nick is new nick, skipping");
3468                 return oldnick->second;
3469         }
3470
3471         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
3472
3473         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
3474
3475         clientlist[New] = new userrec();
3476         clientlist[New] = oldnick->second;
3477         /*delete oldnick->second; */
3478         clientlist.erase(oldnick);
3479
3480         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
3481
3482         return clientlist[New];
3483 }
3484
3485 /* adds or updates an entry in the whowas list */
3486 void AddWhoWas(userrec* u)
3487 {
3488         user_hash::iterator iter = whowas.find(u->nick);
3489         userrec *a = new userrec();
3490         strcpy(a->nick,u->nick);
3491         strcpy(a->ident,u->ident);
3492         strcpy(a->dhost,u->dhost);
3493         strcpy(a->host,u->host);
3494         strcpy(a->fullname,u->fullname);
3495         strcpy(a->server,u->server);
3496         a->signon = u->signon;
3497
3498         /* MAX_WHOWAS:   max number of /WHOWAS items
3499          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
3500          *               can be replaced by a newer one
3501          */
3502
3503         if (iter == whowas.end())
3504         {
3505                 if (whowas.size() == WHOWAS_MAX)
3506                 {
3507                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
3508                         {
3509                                 // 3600 seconds in an hour ;)
3510                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
3511                                 {
3512                                         delete i->second;
3513                                         i->second = a;
3514                                         log(DEBUG,"added WHOWAS entry, purged an old record");
3515                                         return;
3516                                 }
3517                         }
3518                 }
3519                 else
3520                 {
3521                         log(DEBUG,"added fresh WHOWAS entry");
3522                         whowas[a->nick] = a;
3523                 }
3524         }
3525         else
3526         {
3527                 log(DEBUG,"updated WHOWAS entry");
3528                 delete iter->second;
3529                 iter->second = a;
3530         }
3531 }
3532
3533
3534 /* add a client connection to the sockets list */
3535 void AddClient(int socket, char* host, int port, bool iscached)
3536 {
3537         int i;
3538         int blocking = 1;
3539         char resolved[MAXBUF];
3540         string tempnick;
3541         char tn2[MAXBUF];
3542         user_hash::iterator iter;
3543
3544         tempnick = ConvToStr(socket) + "-unknown";
3545         sprintf(tn2,"%d-unknown",socket);
3546
3547         iter = clientlist.find(tempnick);
3548
3549         if (iter != clientlist.end()) return;
3550
3551         /*
3552          * It is OK to access the value here this way since we know
3553          * it exists, we just created it above.
3554          *
3555          * At NO other time should you access a value in a map or a
3556          * hash_map this way.
3557          */
3558         clientlist[tempnick] = new userrec();
3559
3560         NonBlocking(socket);
3561         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
3562
3563         clientlist[tempnick]->fd = socket;
3564         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
3565         strncpy(clientlist[tempnick]->host, host,160);
3566         strncpy(clientlist[tempnick]->dhost, host,160);
3567         strncpy(clientlist[tempnick]->server, ServerName,256);
3568         strncpy(clientlist[tempnick]->ident, "unknown",9);
3569         clientlist[tempnick]->registered = 0;
3570         clientlist[tempnick]->signon = time(NULL);
3571         clientlist[tempnick]->nping = time(NULL)+240;
3572         clientlist[tempnick]->lastping = 1;
3573         clientlist[tempnick]->port = port;
3574
3575         if (iscached)
3576         {
3577                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
3578         }
3579         else
3580         {
3581                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
3582         }
3583
3584         // set the registration timeout for this user
3585         unsigned long class_regtimeout = 90;
3586         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3587         {
3588                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
3589                 {
3590                         class_regtimeout = (unsigned long)i->registration_timeout;
3591                         break;
3592                 }
3593         }
3594         log(DEBUG,"Client has a connection timeout value of %d",class_regtimeout);
3595         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
3596
3597         if (clientlist.size() == MAXCLIENTS)
3598                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
3599 }
3600
3601 void handle_names(char **parameters, int pcnt, userrec *user)
3602 {
3603         chanrec* c;
3604
3605         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
3606                 return;
3607         c = FindChan(parameters[0]);
3608         if (c)
3609         {
3610                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
3611                 userlist(user,c);
3612                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
3613         }
3614         else
3615         {
3616                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3617         }
3618 }
3619
3620
3621 void handle_privmsg(char **parameters, int pcnt, userrec *user)
3622 {
3623         userrec *dest;
3624         chanrec *chan;
3625
3626         user->idle_lastmsg = time(NULL);
3627
3628         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
3629                 return;
3630         if (parameters[0][0] == '#')
3631         {
3632                 chan = FindChan(parameters[0]);
3633                 if (chan)
3634                 {
3635                         if ((chan->noexternal) && (!has_channel(user,chan)))
3636                         {
3637                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
3638                                 return;
3639                         }
3640                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
3641                         {
3642                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
3643                                 return;
3644                         }
3645                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
3646                 }
3647                 else
3648                 {
3649                         /* no such nick/channel */
3650                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3651                 }
3652                 return;
3653         }
3654
3655         dest = Find(parameters[0]);
3656         if (dest)
3657         {
3658                 if (strcmp(dest->awaymsg,""))
3659                 {
3660                         /* auto respond with aweh msg */
3661                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
3662                 }
3663                 WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
3664         }
3665         else
3666         {
3667                 /* no such nick/channel */
3668                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3669         }
3670 }
3671
3672 void handle_notice(char **parameters, int pcnt, userrec *user)
3673 {
3674         userrec *dest;
3675         chanrec *chan;
3676
3677         user->idle_lastmsg = time(NULL);
3678
3679         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
3680                 return;
3681         if (parameters[0][0] == '#')
3682         {
3683                 chan = FindChan(parameters[0]);
3684                 if (chan)
3685                 {
3686                         if ((chan->noexternal) && (!has_channel(user,chan)))
3687                         {
3688                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
3689                                 return;
3690                         }
3691                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
3692                         {
3693                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
3694                                 return;
3695                         }
3696                         WriteChannel(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
3697                 }
3698                 else
3699                 {
3700                         /* no such nick/channel */
3701                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3702                 }
3703                 return;
3704         }
3705
3706         dest = Find(parameters[0]);
3707         if (dest)
3708         {
3709                 WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
3710         }
3711         else
3712         {
3713                 /* no such nick/channel */
3714                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3715         }
3716 }
3717
3718 char lst[MAXBUF];
3719
3720 char* chlist(userrec *user)
3721 {
3722         int i = 0;
3723         char cmp[MAXBUF];
3724
3725         log(DEBUG,"chlist: %s",user->nick);
3726         strcpy(lst,"");
3727         if (!user)
3728         {
3729                 return lst;
3730         }
3731         for (i = 0; i != MAXCHANS; i++)
3732         {
3733                 if (user->chans[i].channel != NULL)
3734                 {
3735                         if (user->chans[i].channel->name)
3736                         {
3737                                 strcpy(cmp,user->chans[i].channel->name);
3738                                 strcat(cmp," ");
3739                                 if (!strstr(lst,cmp))
3740                                 {
3741                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
3742                                         {
3743                                                 strcat(lst,cmode(user,user->chans[i].channel));
3744                                                 strcat(lst,user->chans[i].channel->name);
3745                                                 strcat(lst," ");
3746                                         }
3747                                 }
3748                         }
3749                 }
3750         }
3751         return lst;
3752 }
3753
3754 void handle_info(char **parameters, int pcnt, userrec *user)
3755 {
3756         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
3757         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
3758         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
3759         FOREACH_MOD OnInfo(user);
3760         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
3761 }
3762
3763 void handle_time(char **parameters, int pcnt, userrec *user)
3764 {
3765         time_t rawtime;
3766         struct tm * timeinfo;
3767
3768         time ( &rawtime );
3769         timeinfo = localtime ( &rawtime );
3770         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
3771
3772 }
3773
3774 void handle_whois(char **parameters, int pcnt, userrec *user)
3775 {
3776         userrec *dest;
3777         char *t;
3778
3779         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
3780                 return;
3781         dest = Find(parameters[0]);
3782         if (dest)
3783         {
3784                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
3785                 if (dest->registered == 7)
3786                 {
3787                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
3788                         if ((user == dest) || (strchr(user->modes,'o')))
3789                         {
3790                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
3791                         }
3792                         if (strcmp(chlist(dest),""))
3793                         {
3794                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
3795                         }
3796                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
3797                         if (strcmp(dest->awaymsg,""))
3798                         {
3799                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
3800                         }
3801                         if (strchr(dest->modes,'o'))
3802                         {
3803                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
3804                         }
3805                         FOREACH_MOD OnWhois(user,dest);
3806                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
3807                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
3808
3809                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
3810                 }
3811                 else
3812                 {
3813                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3814                 }
3815         }
3816         else
3817         {
3818                 /* no such nick/channel */
3819                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3820         }
3821 }
3822
3823 void handle_quit(char **parameters, int pcnt, userrec *user)
3824 {
3825         user_hash::iterator iter = clientlist.find(user->nick);
3826         char* reason;
3827
3828         if (user->registered == 7)
3829         {
3830                 /* theres more to do here, but for now just close the socket */
3831                 if (pcnt == 1)
3832                 {
3833                         if (parameters[0][0] == ':')
3834                         {
3835                                 *parameters[0]++;
3836                         }
3837                         reason = parameters[0];
3838
3839                         if (strlen(reason)>MAXQUIT)
3840                         {
3841                                 reason[MAXQUIT-1] = '\0';
3842                         }
3843
3844                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
3845                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
3846                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
3847                 }
3848                 else
3849                 {
3850                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
3851                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
3852                         WriteCommonExcept(user,"QUIT :Client exited");
3853                 }
3854                 FOREACH_MOD OnUserQuit(user);
3855                 AddWhoWas(user);
3856         }
3857
3858         /* push the socket on a stack of sockets due to be closed at the next opportunity */
3859         fd_reap.push_back(user->fd);
3860
3861         if (iter != clientlist.end())
3862         {
3863                 log(DEBUG,"deleting user hash value %d",iter->second);
3864                 if ((iter->second) && (user->registered == 7)) {
3865                         delete iter->second;
3866                 }
3867                 clientlist.erase(iter);
3868         }
3869
3870         if (user->registered == 7) {
3871                 purge_empty_chans();
3872         }
3873 }
3874
3875 void handle_who(char **parameters, int pcnt, userrec *user)
3876 {
3877         chanrec* Ptr = NULL;
3878
3879         /* theres more to do here, but for now just close the socket */
3880         if (pcnt == 1)
3881         {
3882                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
3883                 {
3884                         if (user->chans[0].channel)
3885                         {
3886                                 Ptr = user->chans[0].channel;
3887                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3888                                 {
3889                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
3890                                         {
3891                                                 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);
3892                                         }
3893                                 }
3894                         }
3895                         if (Ptr)
3896                         {
3897                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
3898                         }
3899                         else
3900                         {
3901                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
3902                         }
3903                         return;
3904                 }
3905                 if (parameters[0][0] = '#')
3906                 {
3907                         Ptr = FindChan(parameters[0]);
3908                         if (Ptr)
3909                         {
3910                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3911                                 {
3912                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
3913                                         {
3914                                                 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);
3915                                         }
3916                                 }
3917                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
3918                         }
3919                         else
3920                         {
3921                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3922                         }
3923                 }
3924         }
3925         if (pcnt == 2)
3926         {
3927                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
3928                 {
3929                         Ptr = user->chans[0].channel;
3930                         printf(user->chans[0].channel->name);
3931                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3932                         {
3933                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
3934                                 {
3935                                         if (strchr(i->second->modes,'o'))
3936                                         {
3937                                                 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);
3938                                         }
3939                                 }
3940                         }
3941                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
3942                         return;
3943                 }
3944         }
3945 }
3946
3947 void handle_wallops(char **parameters, int pcnt, userrec *user)
3948 {
3949         WriteWallOps(user,"%s",parameters[0]);
3950 }
3951
3952 void handle_list(char **parameters, int pcnt, userrec *user)
3953 {
3954         chanrec* Ptr;
3955
3956         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
3957         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
3958         {
3959                 if ((!i->second->c_private) && (!i->second->secret))
3960                 {
3961                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
3962                 }
3963         }
3964         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
3965 }
3966
3967
3968 void handle_rehash(char **parameters, int pcnt, userrec *user)
3969 {
3970         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CONFIG_FILE);
3971         ReadConfig();
3972         FOREACH_MOD OnRehash();
3973         WriteOpers("%s is rehashing config file %s",user->nick,CONFIG_FILE);
3974 }
3975
3976
3977 int usercnt(void)
3978 {
3979         return clientlist.size();
3980 }
3981
3982 int usercount_invisible(void)
3983 {
3984         int c = 0;
3985
3986         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3987         {
3988                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
3989         }
3990         return c;
3991 }
3992
3993 int usercount_opers(void)
3994 {
3995         int c = 0;
3996
3997         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3998         {
3999                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4000         }
4001         return c;
4002 }
4003
4004 int usercount_unknown(void)
4005 {
4006         int c = 0;
4007
4008         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4009         {
4010                 if ((i->second->fd) && (i->second->registered != 7))
4011                         c++;
4012         }
4013         return c;
4014 }
4015
4016 int chancount(void)
4017 {
4018         return chanlist.size();
4019 }
4020
4021 int servercount(void)
4022 {
4023         return 1;
4024 }
4025
4026 void handle_lusers(char **parameters, int pcnt, userrec *user)
4027 {
4028         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4029         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4030         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4031         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4032         WriteServ(user->fd,"254 %s :I have %d clients and 0 servers",user->nick,usercnt());
4033 }
4034
4035 void handle_admin(char **parameters, int pcnt, userrec *user)
4036 {
4037         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4038         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4039         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4040         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4041 }
4042
4043 void ShowMOTD(userrec *user)
4044 {
4045         if (!MOTD.size())
4046         {
4047                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4048                 return;
4049         }
4050         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4051         for (int i = 0; i != MOTD.size(); i++)
4052         {
4053                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4054         }
4055         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4056 }
4057
4058 void ShowRULES(userrec *user)
4059 {
4060         if (!RULES.size())
4061         {
4062                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4063                 return;
4064         }
4065         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4066         for (int i = 0; i != RULES.size(); i++)
4067         {
4068                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4069         }
4070         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4071 }
4072
4073 /* shows the message of the day, and any other on-logon stuff */
4074 void ConnectUser(userrec *user)
4075 {
4076         user->registered = 7;
4077         user->idle_lastmsg = time(NULL);
4078         log(DEBUG,"ConnectUser: %s",user->nick);
4079
4080         if (strcmp(Passwd(user),"") && (!user->haspassed))
4081         {
4082                 kill_link(user,"Invalid password");
4083                 return;
4084         }
4085         if (IsDenied(user))
4086         {
4087                 kill_link(user,"Unauthorised connection");
4088                 return;
4089         }
4090
4091         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
4092         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
4093         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
4094         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
4095         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
4096         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);
4097         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);
4098         ShowMOTD(user);
4099         FOREACH_MOD OnUserConnect(user);
4100         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
4101 }
4102
4103 void handle_version(char **parameters, int pcnt, userrec *user)
4104 {
4105         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Id$",ServerName,SYSTEM);
4106 }
4107
4108 void handle_ping(char **parameters, int pcnt, userrec *user)
4109 {
4110         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
4111 }
4112
4113 void handle_pong(char **parameters, int pcnt, userrec *user)
4114 {
4115         // set the user as alive so they survive to next ping
4116         user->lastping = 1;
4117 }
4118
4119 void handle_motd(char **parameters, int pcnt, userrec *user)
4120 {
4121         ShowMOTD(user);
4122 }
4123
4124 void handle_rules(char **parameters, int pcnt, userrec *user)
4125 {
4126         ShowRULES(user);
4127 }
4128
4129 void handle_user(char **parameters, int pcnt, userrec *user)
4130 {
4131         if (user->registered < 3)
4132         {
4133                 if (isident(parameters[0]) == 0) {
4134                         // This kinda Sucks, According to the RFC thou, its either this,
4135                         // or "You have already registered" :p -- Craig
4136                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
4137                 }
4138                 else {
4139                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
4140                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
4141                         strncat(user->ident,parameters[0],IDENTMAX);
4142                         strncpy(user->fullname,parameters[3],128);
4143                         user->registered = (user->registered | 1);
4144                 }
4145         }
4146         else
4147         {
4148                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4149                 return;
4150         }
4151         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
4152         if (user->registered == 3)
4153         {
4154                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
4155                 ConnectUser(user);
4156         }
4157 }
4158
4159 void handle_userhost(char **parameters, int pcnt, userrec *user)
4160 {
4161         char Return[MAXBUF],junk[MAXBUF];
4162         sprintf(Return,"302 %s :",user->nick);
4163         for (int i = 0; i < pcnt; i++)
4164         {
4165                 userrec *u = Find(parameters[i]);
4166                 if (u)
4167                 {
4168                         if (strchr(u->modes,'o'))
4169                         {
4170                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
4171                                 strcat(Return,junk);
4172                         }
4173                         else
4174                         {
4175                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
4176                                 strcat(Return,junk);
4177                         }
4178                 }
4179         }
4180         WriteServ(user->fd,Return);
4181 }
4182
4183
4184 void handle_ison(char **parameters, int pcnt, userrec *user)
4185 {
4186         char Return[MAXBUF];
4187         sprintf(Return,"303 %s :",user->nick);
4188         for (int i = 0; i < pcnt; i++)
4189         {
4190                 userrec *u = Find(parameters[i]);
4191                 if (u)
4192                 {
4193                         strcat(Return,u->nick);
4194                         strcat(Return," ");
4195                 }
4196         }
4197         WriteServ(user->fd,Return);
4198 }
4199
4200
4201 void handle_away(char **parameters, int pcnt, userrec *user)
4202 {
4203         if (pcnt)
4204         {
4205                 strcpy(user->awaymsg,parameters[0]);
4206                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
4207         }
4208         else
4209         {
4210                 strcpy(user->awaymsg,"");
4211                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
4212         }
4213 }
4214
4215 void handle_whowas(char **parameters, int pcnt, userrec* user)
4216 {
4217         user_hash::iterator i = whowas.find(parameters[0]);
4218
4219         if (i == whowas.end())
4220         {
4221                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
4222                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
4223         }
4224         else
4225         {
4226                 time_t rawtime = i->second->signon;
4227                 tm *timeinfo;
4228                 char b[MAXBUF];
4229
4230                 timeinfo = localtime(&rawtime);
4231                 strcpy(b,asctime(timeinfo));
4232                 b[strlen(b)-1] = '\0';
4233
4234                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
4235                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
4236                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
4237         }
4238
4239 }
4240
4241 void handle_trace(char **parameters, int pcnt, userrec *user)
4242 {
4243         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
4244         {
4245                 if (i->second)
4246                 {
4247                         if (isnick(i->second->nick))
4248                         {
4249                                 if (strchr(i->second->modes,'o'))
4250                                 {
4251                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
4252                                 }
4253                                 else
4254                                 {
4255                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
4256                                 }
4257                         }
4258                         else
4259                         {
4260                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
4261                         }
4262                 }
4263         }
4264 }
4265
4266 void handle_modules(char **parameters, int pcnt, userrec *user)
4267 {
4268         for (int i = 0; i < module_names.size(); i++)
4269         {
4270                         Version V = modules[i]->GetVersion();
4271                         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());
4272         }
4273 }
4274
4275 void handle_stats(char **parameters, int pcnt, userrec *user)
4276 {
4277         if (pcnt != 1)
4278         {
4279                 return;
4280         }
4281         if (strlen(parameters[0])>1)
4282         {
4283                 /* make the stats query 1 character long */
4284                 parameters[0][1] = '\0';
4285         }
4286
4287         /* stats m (list number of times each command has been used, plus bytecount) */
4288         if (!strcasecmp(parameters[0],"m"))
4289         {
4290                 for (int i = 0; i < cmdlist.size(); i++)
4291                 {
4292                         if (cmdlist[i].handler_function)
4293                         {
4294                                 if (cmdlist[i].use_count)
4295                                 {
4296                                         /* RPL_STATSCOMMANDS */
4297                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
4298                                 }
4299                         }
4300                 }
4301
4302         }
4303
4304         /* stats z (debug and memory info) */
4305         if (!strcasecmp(parameters[0],"z"))
4306         {
4307                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
4308                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
4309                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
4310                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
4311                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
4312                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
4313                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
4314                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
4315         }
4316
4317         /* stats o */
4318         if (!strcasecmp(parameters[0],"o"))
4319         {
4320                 for (int i = 0; i < ConfValueEnum("oper"); i++)
4321                 {
4322                         char LoginName[MAXBUF];
4323                         char HostName[MAXBUF];
4324                         char OperType[MAXBUF];
4325                         ConfValue("oper","name",i,LoginName);
4326                         ConfValue("oper","host",i,HostName);
4327                         ConfValue("oper","type",i,OperType);
4328                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
4329                 }
4330         }
4331
4332         /* stats l (show user I/O stats) */
4333         if (!strcasecmp(parameters[0],"l"))
4334         {
4335                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
4336                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
4337                 {
4338                         if (isnick(i->second->nick))
4339                         {
4340                                 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);
4341                         }
4342                         else
4343                         {
4344                                 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);
4345                         }
4346
4347                 }
4348         }
4349
4350         /* stats u (show server uptime) */
4351         if (!strcasecmp(parameters[0],"u"))
4352         {
4353                 time_t current_time = 0;
4354                 current_time = time(NULL);
4355                 time_t server_uptime = current_time - startup_time;
4356                 struct tm* stime;
4357                 stime = gmtime(&server_uptime);
4358                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
4359                  * Craig suggested this, and it seemed a good idea so in it went */
4360                 if (stime->tm_year > 70)
4361                 {
4362                         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);
4363                 }
4364                 else
4365                 {
4366                         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);
4367                 }
4368         }
4369
4370         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
4371         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
4372
4373 }
4374
4375 void handle_connect(char **parameters, int pcnt, userrec *user)
4376 {
4377         char Link_ServerName[1024];
4378         char Link_IPAddr[1024];
4379         char Link_Port[1024];
4380         char Link_Pass[1024];
4381         int LinkPort;
4382         bool found = false;
4383
4384         for (int i = 0; i < ConfValueEnum("link"); i++)
4385         {
4386                 ConfValue("link","name",i,Link_ServerName);
4387                 ConfValue("link","ipaddr",i,Link_IPAddr);
4388                 ConfValue("link","port",i,Link_Port);
4389                 ConfValue("link","sendpass",i,Link_Pass);
4390                 log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
4391                 LinkPort = atoi(Link_Port);
4392                 if (match(Link_ServerName,parameters[0])) {
4393                         found = true;
4394                 }
4395         }
4396
4397         if (!found) {
4398                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
4399                 return;
4400         }
4401
4402         // TODO: Perform a check here to stop a server being linked twice!
4403
4404         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
4405
4406         if (me[defaultRoute])
4407         {
4408
4409                 // at this point parameters[0] is an ip in a string.
4410                 // TODO: Look this up from the <link> blocks instead!
4411                 for (int j = 0; j < 255; j++) {
4412                         if (servers[j] == NULL) {
4413                                 servers[j] = new serverrec;
4414                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
4415                                 strcpy(servers[j]->name,Link_ServerName);
4416                                 log(DEBUG,"Allocated new serverrec");
4417                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
4418                                 {
4419                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
4420                                 }
4421                                 return;
4422                         }
4423                 }
4424                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
4425         }
4426         else
4427         {
4428                 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);
4429         }
4430 }
4431
4432 void handle_squit(char **parameters, int pcnt, userrec *user)
4433 {
4434         // send out an squit across the mesh and then clear the server list (for local squit)
4435 }
4436
4437 void handle_oper(char **parameters, int pcnt, userrec *user)
4438 {
4439         char LoginName[MAXBUF];
4440         char Password[MAXBUF];
4441         char OperType[MAXBUF];
4442         char TypeName[MAXBUF];
4443         char Hostname[MAXBUF];
4444         int i,j;
4445
4446         for (i = 0; i < ConfValueEnum("oper"); i++)
4447         {
4448                 ConfValue("oper","name",i,LoginName);
4449                 ConfValue("oper","password",i,Password);
4450                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
4451                 {
4452                         /* correct oper credentials */
4453                         ConfValue("oper","type",i,OperType);
4454                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
4455                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
4456                         WriteServ(user->fd,"MODE %s :+o",user->nick);
4457                         for (j =0; j < ConfValueEnum("type"); j++)
4458                         {
4459                                 ConfValue("type","name",j,TypeName);
4460                                 if (!strcmp(TypeName,OperType))
4461                                 {
4462                                         /* found this oper's opertype */
4463                                         ConfValue("type","host",j,Hostname);
4464                                         strncpy(user->dhost,Hostname,256);
4465                                 }
4466                         }
4467                         if (!strchr(user->modes,'o'))
4468                         {
4469                                 strcat(user->modes,"o");
4470                         }
4471                         FOREACH_MOD OnOper(user);
4472                         return;
4473                 }
4474         }
4475         /* no such oper */
4476         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
4477         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
4478 }
4479
4480 void handle_nick(char **parameters, int pcnt, userrec *user)
4481 {
4482         if (pcnt < 1)
4483         {
4484                 log(DEBUG,"not enough params for handle_nick");
4485                 return;
4486         }
4487         if (!parameters[0])
4488         {
4489                 log(DEBUG,"invalid parameter passed to handle_nick");
4490                 return;
4491         }
4492         if (!strlen(parameters[0]))
4493         {
4494                 log(DEBUG,"zero length new nick passed to handle_nick");
4495                 return;
4496         }
4497         if (!user)
4498         {
4499                 log(DEBUG,"invalid user passed to handle_nick");
4500                 return;
4501         }
4502         if (!user->nick)
4503         {
4504                 log(DEBUG,"invalid old nick passed to handle_nick");
4505                 return;
4506         }
4507         if (!strcasecmp(user->nick,parameters[0]))
4508         {
4509                 log(DEBUG,"old nick is new nick, skipping");
4510                 return;
4511         }
4512         else
4513         {
4514                 if (strlen(parameters[0]) > 1)
4515                 {
4516                         if (parameters[0][0] == ':')
4517                         {
4518                                 *parameters[0]++;
4519                         }
4520                 }
4521                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
4522                 {
4523                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
4524                         return;
4525                 }
4526         }
4527         if (isnick(parameters[0]) == 0)
4528         {
4529                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
4530                 return;
4531         }
4532
4533         if (user->registered == 7)
4534         {
4535                 WriteCommon(user,"NICK %s",parameters[0]);
4536         }
4537
4538         /* change the nick of the user in the users_hash */
4539         user = ReHashNick(user->nick, parameters[0]);
4540         /* actually change the nick within the record */
4541         if (!user) return;
4542         if (!user->nick) return;
4543
4544         strncpy(user->nick, parameters[0],NICKMAX);
4545
4546         log(DEBUG,"new nick set: %s",user->nick);
4547
4548         if (user->registered < 3)
4549                 user->registered = (user->registered | 2);
4550         if (user->registered == 3)
4551         {
4552                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
4553                 ConnectUser(user);
4554         }
4555         log(DEBUG,"exit nickchange: %s",user->nick);
4556 }
4557
4558 void force_nickchange(userrec* user,const char* newnick)
4559 {
4560         char nick[MAXBUF];
4561         strcpy(nick,"");
4562
4563         if (user)
4564         {
4565                 if (newnick)
4566                 {
4567                         strncpy(nick,newnick,MAXBUF);
4568                 }
4569                 if (user->registered == 7)
4570                 {
4571                         char* pars[1];
4572                         pars[0] = nick;
4573                         handle_nick(pars,1,user);
4574                 }
4575         }
4576 }
4577
4578
4579 int process_parameters(char **command_p,char *parameters)
4580 {
4581         int i = 0;
4582         int j = 0;
4583         int q = 0;
4584         q = strlen(parameters);
4585         if (!q)
4586         {
4587                 /* no parameters, command_p invalid! */
4588                 return 0;
4589         }
4590         if (parameters[0] == ':')
4591         {
4592                 command_p[0] = parameters+1;
4593                 return 1;
4594         }
4595         if (q)
4596         {
4597                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
4598                 {
4599                         /* only one parameter */
4600                         command_p[0] = parameters;
4601                         if (parameters[0] == ':')
4602                         {
4603                                 if (strchr(parameters,' ') != NULL)
4604                                 {
4605                                         command_p[0]++;
4606                                 }
4607                         }
4608                         return 1;
4609                 }
4610         }
4611         command_p[j++] = parameters;
4612         for (i = 0; i <= q; i++)
4613         {
4614                 if (parameters[i] == ' ')
4615                 {
4616                         command_p[j++] = parameters+i+1;
4617                         parameters[i] = '\0';
4618                         if (command_p[j-1][0] == ':')
4619                         {
4620                                 *command_p[j-1]++; /* remove dodgy ":" */
4621                                 break;
4622                                 /* parameter like this marks end of the sequence */
4623                         }
4624                 }
4625         }
4626         return j; /* returns total number of items in the list */
4627 }
4628
4629 void process_command(userrec *user, char* cmd)
4630 {
4631         char *parameters;
4632         char *command;
4633         char *command_p[127];
4634         char p[MAXBUF], temp[MAXBUF];
4635         int i, j, items, cmd_found;
4636
4637         for (int i = 0; i < 127; i++)
4638                 command_p[i] = NULL;
4639
4640         if (!user)
4641         {
4642                 return;
4643         }
4644         if (!cmd)
4645         {
4646                 return;
4647         }
4648         if (!strcmp(cmd,""))
4649         {
4650                 return;
4651         }
4652
4653         int total_params = 0;
4654         for (int q = 0; q < strlen(cmd); q++)
4655         {
4656                 if (cmd[q] == ' ')
4657                         total_params++;
4658         }
4659
4660         // another phidjit bug...
4661         if (total_params > 126)
4662         {
4663                 kill_link(user,"Protocol violation");
4664                 return;
4665         }
4666
4667         strcpy(temp,cmd);
4668
4669         string tmp = cmd;
4670         FOREACH_MOD OnServerRaw(tmp,true);
4671         const char* cmd2 = tmp.c_str();
4672         snprintf(cmd,512,"%s",cmd2);
4673
4674         if (!strchr(cmd,' '))
4675         {
4676                 /* no parameters, lets skip the formalities and not chop up
4677                  * the string */
4678                 log(DEBUG,"About to preprocess command with no params");
4679                 items = 0;
4680                 command_p[0] = NULL;
4681                 parameters = NULL;
4682                 for (int i = 0; i <= strlen(cmd); i++)
4683                 {
4684                         cmd[i] = toupper(cmd[i]);
4685                 }
4686                 log(DEBUG,"Preprocess done");
4687         }
4688         else
4689         {
4690                 strcpy(cmd,"");
4691                 j = 0;
4692                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
4693                 for (i = 0; i < strlen(temp); i++)
4694                 {
4695                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
4696                         {
4697                                 cmd[j++] = temp[i];
4698                                 cmd[j] = 0;
4699                         }
4700                 }
4701                 /* split the full string into a command plus parameters */
4702                 parameters = p;
4703                 strcpy(p," ");
4704                 command = cmd;
4705                 if (strchr(cmd,' '))
4706                 {
4707                         for (i = 0; i <= strlen(cmd); i++)
4708                         {
4709                                 /* capitalise the command ONLY, leave params intact */
4710                                 cmd[i] = toupper(cmd[i]);
4711                                 /* are we nearly there yet?! :P */
4712                                 if (cmd[i] == ' ')
4713                                 {
4714                                         command = cmd;
4715                                         parameters = cmd+i+1;
4716                                         cmd[i] = '\0';
4717                                         break;
4718                                 }
4719                         }
4720                 }
4721                 else
4722                 {
4723                         for (i = 0; i <= strlen(cmd); i++)
4724                         {
4725                                 cmd[i] = toupper(cmd[i]);
4726                         }
4727                 }
4728
4729         }
4730
4731         cmd_found = 0;
4732
4733         if (strlen(command)>MAXCOMMAND)
4734         {
4735                 kill_link(user,"Protocol violation");
4736                 return;
4737         }
4738
4739         for (int x = 0; x < strlen(command); x++)
4740         {
4741                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
4742                 {
4743                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
4744                         {
4745                                 kill_link(user,"Protocol violation");
4746                                 return;
4747                         }
4748                 }
4749         }
4750
4751         for (i = 0; i != cmdlist.size(); i++)
4752         {
4753                 if (strcmp(cmdlist[i].command,""))
4754                 {
4755                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
4756                         {
4757                                 log(DEBUG,"Found matching command");
4758
4759                                 if (parameters)
4760                                 {
4761                                         if (strcmp(parameters,""))
4762                                         {
4763                                                 items = process_parameters(command_p,parameters);
4764                                         }
4765                                         else
4766                                         {
4767                                                 items = 0;
4768                                                 command_p[0] = NULL;
4769                                         }
4770                                 }
4771                                 else
4772                                 {
4773                                         items = 0;
4774                                         command_p[0] = NULL;
4775                                 }
4776
4777                                 if (user)
4778                                 {
4779                                         log(DEBUG,"Processing command");
4780
4781                                         /* activity resets the ping pending timer */
4782                                         user->nping = time(NULL) + 120;
4783                                         if ((items) < cmdlist[i].min_params)
4784                                         {
4785                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
4786                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
4787                                                 return;
4788                                         }
4789                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
4790                                         {
4791                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
4792                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
4793                                                 cmd_found = 1;
4794                                                 return;
4795                                         }
4796                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
4797                                          * deny command! */
4798                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
4799                                         {
4800                                                 if ((!isnick(user->nick)) || (user->registered != 7))
4801                                                 {
4802                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
4803                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
4804                                                         return;
4805                                                 }
4806                                         }
4807                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
4808                                         {
4809                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
4810                                                 if (cmdlist[i].handler_function)
4811                                                 {
4812                                                         /* ikky /stats counters */
4813                                                         if (temp)
4814                                                         {
4815                                                                 if (user)
4816                                                                 {
4817                                                                         user->bytes_in += strlen(temp);
4818                                                                         user->cmds_in++;
4819                                                                 }
4820                                                                 cmdlist[i].use_count++;
4821                                                                 cmdlist[i].total_bytes+=strlen(temp);
4822                                                         }
4823
4824                                                         /* WARNING: nothing may come after the
4825                                                          * command handler call, as the handler
4826                                                          * may free the user structure! */
4827
4828                                                         cmdlist[i].handler_function(command_p,items,user);
4829                                                 }
4830                                                 return;
4831                                         }
4832                                         else
4833                                         {
4834                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
4835                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
4836                                                 return;
4837                                         }
4838                                 }
4839                                 cmd_found = 1;
4840                         }
4841                 }
4842         }
4843         if ((!cmd_found) && (user))
4844         {
4845                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
4846                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
4847         }
4848 }
4849
4850
4851 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
4852 {
4853         command_t comm;
4854         /* create the command and push it onto the table */
4855         strcpy(comm.command,cmd);
4856         comm.handler_function = f;
4857         comm.flags_needed = flags;
4858         comm.min_params = minparams;
4859         comm.use_count = 0;
4860         comm.total_bytes = 0;
4861         cmdlist.push_back(comm);
4862         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
4863 }
4864
4865 void SetupCommandTable(void)
4866 {
4867   createcommand("USER",handle_user,0,4);
4868   createcommand("NICK",handle_nick,0,1);
4869   createcommand("QUIT",handle_quit,0,0);
4870   createcommand("VERSION",handle_version,0,0);
4871   createcommand("PING",handle_ping,0,1);
4872   createcommand("PONG",handle_pong,0,1);
4873   createcommand("ADMIN",handle_admin,0,0);
4874   createcommand("PRIVMSG",handle_privmsg,0,2);
4875   createcommand("INFO",handle_info,0,0);
4876   createcommand("TIME",handle_time,0,0);
4877   createcommand("WHOIS",handle_whois,0,1);
4878   createcommand("WALLOPS",handle_wallops,'o',1);
4879   createcommand("NOTICE",handle_notice,0,2);
4880   createcommand("JOIN",handle_join,0,1);
4881   createcommand("NAMES",handle_names,0,1);
4882   createcommand("PART",handle_part,0,1);
4883   createcommand("KICK",handle_kick,0,2);
4884   createcommand("MODE",handle_mode,0,1);
4885   createcommand("TOPIC",handle_topic,0,1);
4886   createcommand("WHO",handle_who,0,1);
4887   createcommand("MOTD",handle_motd,0,0);
4888   createcommand("RULES",handle_join,0,0);
4889   createcommand("OPER",handle_oper,0,2);
4890   createcommand("LIST",handle_list,0,0);
4891   createcommand("DIE",handle_die,'o',1);
4892   createcommand("RESTART",handle_restart,'o',1);
4893   createcommand("KILL",handle_kill,'o',2);
4894   createcommand("REHASH",handle_rehash,'o',0);
4895   createcommand("LUSERS",handle_lusers,0,0);
4896   createcommand("STATS",handle_stats,0,1);
4897   createcommand("USERHOST",handle_userhost,0,1);
4898   createcommand("AWAY",handle_away,0,0);
4899   createcommand("ISON",handle_ison,0,0);
4900   createcommand("SUMMON",handle_summon,0,0);
4901   createcommand("USERS",handle_users,0,0);
4902   createcommand("INVITE",handle_invite,0,2);
4903   createcommand("PASS",handle_pass,0,1);
4904   createcommand("TRACE",handle_trace,'o',0);
4905   createcommand("WHOWAS",handle_whowas,0,1);
4906   createcommand("CONNECT",handle_connect,'o',1);
4907   createcommand("SQUIT",handle_squit,'o',1);
4908   createcommand("MODULES",handle_modules,'o',0);
4909 }
4910
4911 void process_buffer(userrec *user)
4912 {
4913         if (!user)
4914         {
4915                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
4916                 return;
4917         }
4918         char cmd[MAXBUF];
4919         int i;
4920         if (!user->inbuf)
4921         {
4922                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
4923                 return;
4924         }
4925         if (!strcmp(user->inbuf,""))
4926         {
4927                 return;
4928         }
4929         strncpy(cmd,user->inbuf,MAXBUF);
4930         if (!strcmp(cmd,""))
4931         {
4932                 return;
4933         }
4934         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
4935         {
4936                 cmd[strlen(cmd)-1] = '\0';
4937         }
4938         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
4939         {
4940                 cmd[strlen(cmd)-1] = '\0';
4941         }
4942         strcpy(user->inbuf,"");
4943         if (!strcmp(cmd,""))
4944         {
4945                 return;
4946         }
4947         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
4948         tidystring(cmd);
4949         if ((user) && (cmd))
4950         {
4951                 process_command(user,cmd);
4952         }
4953 }
4954
4955 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
4956 {
4957         WriteOpers("Secure-UDP-Channel: Token='%c', Params='%s'",token,params);
4958 }
4959
4960
4961 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
4962 {
4963         char response[10240];
4964         char token = udp_msg[0];
4965         char* params = udp_msg + 2;
4966         char finalparam[1024];
4967         strcpy(finalparam," :xxxx");
4968         if (strstr(params," :")) {
4969                 strncpy(finalparam,strstr(params," :"),1024);
4970         }
4971         if (token == 'S') {
4972                 // S test.chatspike.net password :ChatSpike InspIRCd test server
4973                 char* servername = strtok(params," ");
4974                 char* password = strtok(NULL," ");
4975                 char* serverdesc = finalparam+2;
4976                 WriteOpers("CONNECT from %s (%s)",servername,udp_host,password,serverdesc);
4977
4978
4979                 char Link_ServerName[1024];
4980                 char Link_IPAddr[1024];
4981                 char Link_Port[1024];
4982                 char Link_Pass[1024];
4983                 char Link_SendPass[1024];
4984                 int LinkPort = 0;
4985
4986                 // search for a corresponding <link> block in the config files
4987                 for (int i = 0; i < ConfValueEnum("link"); i++)
4988                 {
4989                         ConfValue("link","name",i,Link_ServerName);
4990                         ConfValue("link","ipaddr",i,Link_IPAddr);
4991                         ConfValue("link","port",i,Link_Port);
4992                         ConfValue("link","recvpass",i,Link_Pass);
4993                         ConfValue("link","sendpass",i,Link_SendPass);
4994                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
4995                         LinkPort = atoi(Link_Port);
4996                         if (!strcasecmp(Link_ServerName,servername)) {
4997                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
4998                                         if (LinkPort == udp_port) {
4999                                                 // we have a matching link line -
5000                                                 // send a 'diminutive' server message back...
5001                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
5002                                                 serv->SendPacket(response,udp_host,udp_port,0);
5003                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
5004                                                 for (int j = 0; j < 255; j++) {
5005                                                         if (servers[j] == NULL) {
5006                                                                 servers[j] = new serverrec;
5007                                                                 strcpy(servers[j]->internal_addr,udp_host);
5008                                                                 strcpy(servers[j]->name,servername);
5009                                                                 // create a server record for this server
5010                                                                 snprintf(response,10240,"O %d",MyKey);
5011                                                                 serv->SendPacket(response,udp_host,udp_port,0);
5012                                                                 return;
5013                                                         }
5014                                                 }
5015                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
5016                                                 return;
5017                                         }
5018                                         else {
5019                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
5020                                         }
5021                                 }
5022                                 else {
5023                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
5024                                 }
5025                         }
5026                         else {
5027                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
5028                         }
5029                 }
5030                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
5031                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
5032                 return;
5033         }
5034         else
5035         if (token == 'O') {
5036                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
5037                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
5038                 // array, which is only added by an 'S' packet or BeginLink().
5039                 for (int i = 0; i < 255; i++) {
5040                         if (servers[i] != NULL) {
5041                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
5042                                         servers[i]->key = atoi(params);
5043                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
5044                                         serv->SendPacket("Z blah blah",udp_host,udp_port,MyKey);
5045                                         return;
5046                                 }
5047                         }
5048                 }
5049                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
5050         }
5051         else
5052         if (token == 's') {
5053                 // S test.chatspike.net password :ChatSpike InspIRCd test server
5054                 char* servername = strtok(params," ");
5055                 char* password = strtok(NULL," ");
5056                 char* serverdesc = finalparam+2;
5057
5058                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
5059                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
5060                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
5061                 // a connect, so put out an oper alert!
5062
5063
5064
5065
5066                 // for now, just accept all, we'll fix that later.
5067                 WriteOpers("%s accepted our link credentials ",servername);
5068
5069                 char Link_ServerName[1024];
5070                 char Link_IPAddr[1024];
5071                 char Link_Port[1024];
5072                 char Link_Pass[1024];
5073                 char Link_SendPass[1024];
5074                 int LinkPort = 0;
5075
5076                 // search for a corresponding <link> block in the config files
5077                 for (int i = 0; i < ConfValueEnum("link"); i++)
5078                 {
5079                         ConfValue("link","name",i,Link_ServerName);
5080                         ConfValue("link","ipaddr",i,Link_IPAddr);
5081                         ConfValue("link","port",i,Link_Port);
5082                         ConfValue("link","recvpass",i,Link_Pass);
5083                         ConfValue("link","sendpass",i,Link_SendPass);
5084                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5085                         LinkPort = atoi(Link_Port);
5086                         if (!strcasecmp(Link_ServerName,servername)) {
5087                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
5088                                         if (LinkPort == udp_port) {
5089                                                 // matching link at this end too, we're all done!
5090                                                 // at this point we must begin key exchange and insert this
5091                                                 // server into our 'active' table.
5092                                                 for (int j = 0; j < 255; j++) {
5093                                                         if (servers[j] != NULL) {
5094                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
5095                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
5096                                                                         snprintf(response,10240,"O %d",MyKey);
5097                                                                         serv->SendPacket(response,udp_host,udp_port,0);
5098                                                                         return;
5099                                                                 }
5100                                                         }
5101                                                 }
5102                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
5103                                                 return;
5104
5105                                         }
5106                                         else {
5107                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
5108                                         }
5109                                 }
5110                                 else {
5111                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
5112                                 }
5113                         }
5114                         else {
5115                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
5116                         }
5117                 }
5118                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
5119                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
5120                 return;
5121         }
5122         else
5123         if (token == 'E') {
5124                 char* error_message = finalparam+2;
5125                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
5126                 // remove this server from any lists
5127                 for (int j = 0; j < 255; j++) {
5128                         if (servers[j] != NULL) {
5129                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
5130                                         delete servers[j];
5131                                         return;
5132                                 }
5133                         }
5134                 }
5135                 return;
5136         }
5137         else {
5138
5139                 serverrec* source_server = NULL;
5140
5141                 for (int j = 0; j < 255; j++) {
5142                         if (servers[j] != NULL) {
5143                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
5144                                         if (servers[j]->key == theirkey) {
5145                                                 // found a valid key for this server, can process restricted stuff here
5146                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
5147
5148                                                 return;
5149                                         }
5150                                 }
5151                         }
5152                 }
5153
5154                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
5155         }
5156 }
5157
5158 int reap_counter = 0;
5159
5160 int InspIRCd(void)
5161 {
5162   struct sockaddr_in client, server;
5163   char addrs[MAXBUF][255];
5164   int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
5165   socklen_t length;
5166   int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
5167   int selectResult = 0;
5168   char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
5169   char resolvedHost[MAXBUF];
5170   fd_set selectFds;
5171   struct timeval tv;
5172
5173   log_file = fopen("ircd.log","a+");
5174   if (!log_file)
5175   {
5176         printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
5177         Exit(ERROR);
5178   }
5179
5180   log(DEBUG,"InspIRCd: startup: begin");
5181   log(DEBUG,"$Id$");
5182   if (geteuid() == 0)
5183   {
5184         printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
5185         Exit(ERROR);
5186         log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
5187   }
5188   SetupCommandTable();
5189   log(DEBUG,"InspIRCd: startup: default command table set up");
5190
5191   ReadConfig();
5192   if (strcmp(DieValue,""))
5193   {
5194         printf("WARNING: %s\n\n",DieValue);
5195         exit(0);
5196   }
5197   log(DEBUG,"InspIRCd: startup: read config");
5198
5199   int count2 = 0, count3 = 0;
5200   for (count = 0; count < ConfValueEnum("bind"); count++)
5201   {
5202         ConfValue("bind","port",count,configToken);
5203         ConfValue("bind","address",count,Addr);
5204         ConfValue("bind","type",count,Type);
5205         if (!strcmp(Type,"servers"))
5206         {
5207                 char Default[MAXBUF];
5208                 strcpy(Default,"no");
5209                 ConfValue("bind","default",count,Default);
5210                 if (strchr(Default,'y'))
5211                 {
5212                                 defaultRoute = count3;
5213                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
5214                 }
5215                 me[count3] = new serverrec(ServerName,100L,false);
5216                 me[count3]->CreateListener(Addr,atoi(configToken));
5217                 count3++;
5218         }
5219         else
5220         {
5221                 ports[count2] = atoi(configToken);
5222                 strcpy(addrs[count2],Addr);
5223                 count2++;
5224         }
5225         log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
5226   }
5227   portCount = count2;
5228   UDPportCount = count3;
5229
5230   log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
5231
5232   log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
5233
5234   printf("\n");
5235
5236   /* BugFix By Craig! :p */
5237   count2 = 0;
5238   for (count = 0; count2 < ConfValueEnum("module"); count2++)
5239   {
5240         char modfile[MAXBUF];
5241         ConfValue("module","name",count,configToken);
5242         sprintf(modfile,"%s/%s",MOD_PATH,configToken);
5243         printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
5244         log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
5245         /* If The File Doesnt exist, Trying to load it
5246          * Will Segfault the IRCd.. So, check to see if
5247          * it Exists, Before Proceeding. */
5248         if (FileExists(modfile))
5249         {
5250                 factory[count] = new ircd_module(modfile);
5251                 if (factory[count]->LastError())
5252                 {
5253                         log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
5254                         sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
5255                         Exit(ERROR);
5256                 }
5257                 if (factory[count]->factory)
5258                 {
5259                         modules[count] = factory[count]->factory->CreateModule();
5260                         /* save the module and the module's classfactory, if
5261                          * this isnt done, random crashes can occur :/ */
5262                         module_names.push_back(modfile);
5263                 }
5264                 else
5265                 {
5266                         log(DEBUG,"Unable to load %s",modfile);
5267                         sprintf("Unable to load %s\nExiting...\n",modfile);
5268                         Exit(ERROR);
5269                 }
5270                 /* Increase the Count */
5271                 count++;
5272         }
5273         else
5274         {
5275                 log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
5276                 printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
5277         }
5278   }
5279   MODCOUNT = count - 1;
5280   log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
5281
5282   printf("\nInspIRCd is now running!\n");
5283
5284   startup_time = time(NULL);
5285
5286   if (nofork)
5287   {
5288         log(VERBOSE,"Not forking as -nofork was specified");
5289   }
5290   else
5291   {
5292         if (DaemonSeed() == ERROR)
5293         {
5294                 log(DEBUG,"InspIRCd: startup: can't daemonise");
5295                 printf("ERROR: could not go into daemon mode. Shutting down.\n");
5296                 Exit(ERROR);
5297         }
5298   }
5299
5300
5301   /* setup select call */
5302   FD_ZERO(&selectFds);
5303   log(DEBUG,"InspIRCd: startup: zero selects");
5304   log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
5305
5306   for (count = 0; count < portCount; count++)
5307   {
5308           if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
5309       {
5310                 log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
5311                 return(ERROR);
5312       }
5313       if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
5314       {
5315                 log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
5316       }
5317       else                      /* well we at least bound to one socket so we'll continue */
5318       {
5319                 boundPortCount++;
5320       }
5321   }
5322
5323   log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
5324
5325   /* if we didn't bind to anything then abort */
5326   if (boundPortCount == 0)
5327   {
5328      log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
5329      return (ERROR);
5330   }
5331
5332   length = sizeof (client);
5333   int flip_flop = 0, udp_port = 0;
5334   char udp_msg[MAXBUF], udp_host[MAXBUF];
5335
5336   /* main loop for multiplexing/resetting */
5337   for (;;)
5338   {
5339       /* set up select call */
5340       for (count = 0; count < boundPortCount; count++)
5341       {
5342                 FD_SET (openSockfd[count], &selectFds);
5343       }
5344
5345       /* added timeout! select was waiting forever... wank... :/ */
5346       tv.tv_usec = 0;
5347
5348       flip_flop++;
5349       reap_counter++;
5350       if (flip_flop > 20)
5351       {
5352               tv.tv_usec = 1;
5353               flip_flop = 0;
5354       }
5355
5356         vector<int>::iterator niterator;
5357
5358
5359         // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
5360         // them in a list, then reap the list every second or so.
5361         if (reap_counter>5000) {
5362                 if (fd_reap.size() > 0) {
5363                         for( int n = 0; n < fd_reap.size(); n++)
5364                         {
5365                                 Blocking(fd_reap[n]);
5366                                 close(fd_reap[n]);
5367                                 NonBlocking(fd_reap[n]);
5368                         }
5369                 }
5370                 fd_reap.clear();
5371                 reap_counter=0;
5372         }
5373
5374
5375       tv.tv_sec = 0;
5376       selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
5377
5378       for (int x = 0; x != UDPportCount; x++)
5379       {
5380            long theirkey = 0;
5381            if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
5382            {
5383                         if (strlen(udp_msg)<1) {
5384                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
5385                         }
5386                         else {
5387                                 FOREACH_MOD OnPacketReceive(udp_msg);
5388                                 // Packets must go back via the route they arrived on :)
5389                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
5390                         }
5391            }
5392       }
5393
5394         for (user_hash::iterator count2 = clientlist.begin(); count2 != clientlist.end(); count2++)
5395         {
5396                 char data[MAXBUF];
5397
5398                 if (!count2->second) break;
5399
5400                 if (count2->second)
5401                 if (count2->second->fd)
5402                 {
5403                         // registration timeout -- didnt send USER/NICK/HOST in the time specified in
5404                         // their connection class.
5405                         if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
5406                         {
5407                                 log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
5408                                 kill_link(count2->second,"Registration timeout");
5409                                 break;
5410                         }
5411                         if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
5412                         {
5413                                 if (!count2->second->lastping)
5414                                 {
5415                                         log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
5416                                         kill_link(count2->second,"Ping timeout");
5417                                         break;
5418                                 }
5419                                 Write(count2->second->fd,"PING :%s",ServerName);
5420                                 log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
5421                                 count2->second->lastping = 0;
5422                                 count2->second->nping = time(NULL)+120;
5423                         }
5424
5425                         result = read(count2->second->fd, data, 1);
5426                         // result EAGAIN means nothing read
5427                         if (result == EAGAIN)
5428                         {
5429                         }
5430                         else
5431                         if (result == 0)
5432                         {
5433                                 if (count2->second)
5434                                 {
5435                                         log(DEBUG,"InspIRCd: Exited: %s",count2->second->nick);
5436                                         kill_link(count2->second,"Client exited");
5437                                         // must bail here? kill_link removes the hash, corrupting the iterator
5438                                         log(DEBUG,"Bailing from client exit");
5439                                         break;
5440                                 }
5441                         }
5442                         else if (result > 0)
5443                         {
5444                                 if (count2->second)
5445                                 {
5446
5447                                         // until the buffer is at 509 chars anything can be inserted into it.
5448                                         if ((strlen(count2->second->inbuf) < 509) && (data[0] != '\0')) {
5449                                                 strncat(count2->second->inbuf, data, result);
5450                                         }
5451
5452                                         // once you reach 509 chars, only a \r or \n can be inserted,
5453                                         // completing the line.
5454                                         if ((strlen(count2->second->inbuf) >= 509) && ((data[0] == '\r') || (data[0] == '\n'))) {
5455                                                 count2->second->inbuf[509] = '\r';
5456                                                 count2->second->inbuf[510] = '\n';
5457                                                 count2->second->inbuf[511] = '\0';
5458                                                 process_buffer(count2->second);
5459                                                 break;
5460                                         }
5461
5462                                         if (strchr(count2->second->inbuf, '\n') || strchr(count2->second->inbuf, '\r') || (strlen(count2->second->inbuf) > 509))
5463                                         {
5464                                                 /* at least one complete line is waiting to be processed */
5465                                                 if (!count2->second->fd)
5466                                                         break;
5467                                                 else
5468                                                 {
5469                                                         if (strlen(count2->second->inbuf)<512)
5470                                                         {
5471                                                                 // double check the length before processing!
5472                                                                 process_buffer(count2->second);
5473                                                         }
5474                                                         else
5475                                                         {
5476                                                                 strcpy(count2->second->inbuf,"");
5477                                                         }
5478                                                         break;
5479                                                 }
5480                                         }
5481                                 }
5482                         }
5483                 }
5484         }
5485
5486       /* select is reporting a waiting socket. Poll them all to find out which */
5487       if (selectResult > 0)
5488       {
5489         char target[MAXBUF], resolved[MAXBUF];
5490         for (count = 0; count < boundPortCount; count++)
5491         {
5492             if (FD_ISSET (openSockfd[count], &selectFds))
5493             {
5494               incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
5495
5496               address_cache::iterator iter = IP.find(client.sin_addr);
5497               bool iscached = false;
5498               if (iter == IP.end())
5499               {
5500                         /* ip isn't in cache, add it */
5501                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
5502                         if(CleanAndResolve(resolved, target) != TRUE)
5503                         {
5504                                 strncpy(resolved,target,MAXBUF);
5505                         }
5506                         /* hostname now in 'target' */
5507                         IP[client.sin_addr] = new string(resolved);
5508               /* hostname in cache */
5509               }
5510               else
5511               {
5512               /* found ip (cached) */
5513               strncpy(resolved, iter->second->c_str(), MAXBUF);
5514               iscached = true;
5515            }
5516
5517               if (incomingSockfd < 0)
5518               {
5519                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
5520                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
5521                         break;
5522               }
5523
5524               AddClient(incomingSockfd, resolved, ports[count], iscached);
5525               log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
5526               break;
5527             }
5528
5529            }
5530       }
5531   }
5532
5533   /* not reached */
5534   close (incomingSockfd);
5535 }
5536