src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include <unistd.h>
  45 #include <sched.h>
  46 #include "connection.h"
  47 #include "users.h"
  48 #include "servers.h"
  49 #include "ctables.h"
  50 #include "globals.h"
  51 #include "modules.h"
  52 #include "dynamic.h"
  53 #include "wildcard.h"
  54 #include "message.h"
  55
  56 #ifdef GCC3
  57 #define nspace __gnu_cxx
  58 #else
  59 #define nspace std
  60 #endif
  61
  62 int LogLevel = DEFAULT;
  63 char ServerName[MAXBUF];
  64 char Network[MAXBUF];
  65 char ServerDesc[MAXBUF];
  66 char AdminName[MAXBUF];
  67 char AdminEmail[MAXBUF];
  68 char AdminNick[MAXBUF];
  69 char diepass[MAXBUF];
  70 char restartpass[MAXBUF];
  71 char motd[MAXBUF];
  72 char rules[MAXBUF];
  73 char list[MAXBUF];
  74 char PrefixQuit[MAXBUF];
  75 char DieValue[MAXBUF];
  76 int debugging =  0;
  77 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  78 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  79 int DieDelay  =  5;
  80 time_t startup_time = time(NULL);
  81 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  82 time_t nb_start = 0;
  83
  84 extern vector<Module*> modules;
  85 std::vector<std::string> module_names;
  86 extern vector<ircd_module*> factory;
  87 std::vector<int> fd_reap;
  88
  89 extern int MODCOUNT;
  90
  91 bool nofork = false;
  92
  93 namespace nspace
  94 {
  95         template<> struct nspace::hash<in_addr>
  96         {
  97                 size_t operator()(const struct in_addr &a) const
  98                 {
  99                         size_t q;
 100                         memcpy(&q,&a,sizeof(size_t));
 101                         return q;
 102                 }
 103         };
 104
 105         template<> struct nspace::hash<string>
 106         {
 107                 size_t operator()(const string &s) const
 108                 {
 109                         char a[MAXBUF];
 110                         static struct hash<const char *> strhash;
 111                         strcpy(a,s.c_str());
 112                         strlower(a);
 113                         return strhash(a);
 114                 }
 115         };
 116 }
 117
 118
 119 struct StrHashComp
 120 {
 121
 122         bool operator()(const string& s1, const string& s2) const
 123         {
 124                 char a[MAXBUF],b[MAXBUF];
 125                 strcpy(a,s1.c_str());
 126                 strcpy(b,s2.c_str());
 127                 return (strcasecmp(a,b) == 0);
 128         }
 129
 130 };
 131
 132 struct InAddr_HashComp
 133 {
 134
 135         bool operator()(const in_addr &s1, const in_addr &s2) const
 136         {
 137                 size_t q;
 138                 size_t p;
 139
 140                 memcpy(&q,&s1,sizeof(size_t));
 141                 memcpy(&p,&s2,sizeof(size_t));
 142
 143                 return (q == p);
 144         }
 145
 146 };
 147
 148
 149 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 150 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 151 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 152 typedef std::deque<command_t> command_table;
 153
 154 serverrec* me[32];
 155
 156 FILE *log_file;
 157
 158 user_hash clientlist;
 159 chan_hash chanlist;
 160 user_hash whowas;
 161 command_table cmdlist;
 162 file_cache MOTD;
 163 file_cache RULES;
 164 address_cache IP;
 165
 166 ClassVector Classes;
 167
 168 struct linger linger = { 0 };
 169 char bannerBuffer[MAXBUF];
 170 int boundPortCount = 0;
 171 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 172 int defaultRoute = 0;
 173
 174 connection C;
 175
 176 long MyKey = C.GenKey();
 177
 178 /* prototypes */
 179
 180 int has_channel(userrec *u, chanrec *c);
 181 int usercount(chanrec *c);
 182 int usercount_i(chanrec *c);
 183 void update_stats_l(int fd,int data_out);
 184 char* Passwd(userrec *user);
 185 bool IsDenied(userrec *user);
 186 void AddWhoWas(userrec* u);
 187
 188 std::vector<long> auth_cookies;
 189 std::stringstream config_f(stringstream::in | stringstream::out);
 190
 191
 192
 193 long GetRevision()
 194 {
 195         char Revision[] = "$Revision$";
 196         char *s1 = Revision;
 197         char *savept;
 198         char *v1 = strtok_r(s1," ",&savept);
 199         s1 = savept;
 200         char *v2 = strtok_r(s1," ",&savept);
 201         s1 = savept;
 202         return (long)(atof(v2)*10000);
 203 }
 204
 205
 206 std::string getservername()
 207 {
 208         return ServerName;
 209 }
 210
 211 std::string getserverdesc()
 212 {
 213         return ServerDesc;
 214 }
 215
 216 std::string getnetworkname()
 217 {
 218         return Network;
 219 }
 220
 221 std::string getadminname()
 222 {
 223         return AdminName;
 224 }
 225
 226 std::string getadminemail()
 227 {
 228         return AdminEmail;
 229 }
 230
 231 std::string getadminnick()
 232 {
 233         return AdminNick;
 234 }
 235
 236 void log(int level,char *text, ...)
 237 {
 238         char textbuffer[MAXBUF];
 239         va_list argsPtr;
 240         time_t rawtime;
 241         struct tm * timeinfo;
 242         if (level < LogLevel)
 243                 return;
 244
 245         time(&rawtime);
 246         timeinfo = localtime (&rawtime);
 247
 248         if (log_file)
 249         {
 250                 char b[MAXBUF];
 251                 va_start (argsPtr, text);
 252                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 253                 va_end(argsPtr);
 254                 strcpy(b,asctime(timeinfo));
 255                 b[strlen(b)-1] = ':';
 256                 fprintf(log_file,"%s %s\n",b,textbuffer);
 257                 if (nofork)
 258                 {
 259                         // nofork enabled? display it on terminal too
 260                         printf("%s %s\n",b,textbuffer);
 261                 }
 262         }
 263 }
 264
 265 void readfile(file_cache &F, const char* fname)
 266 {
 267   FILE* file;
 268   char linebuf[MAXBUF];
 269
 270   log(DEBUG,"readfile: loading %s",fname);
 271   F.clear();
 272   file =  fopen(fname,"r");
 273   if (file)
 274   {
 275         while (!feof(file))
 276         {
 277                 fgets(linebuf,sizeof(linebuf),file);
 278                 linebuf[strlen(linebuf)-1]='\0';
 279                 if (!strcmp(linebuf,""))
 280                 {
 281                         strcpy(linebuf,"  ");
 282                 }
 283                 if (!feof(file))
 284                 {
 285                         F.push_back(linebuf);
 286                 }
 287         }
 288         fclose(file);
 289   }
 290   else
 291   {
 292           log(DEBUG,"readfile: failed to load file: %s",fname);
 293   }
 294   log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 295 }
 296
 297 void ReadConfig(void)
 298 {
 299   char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF];
 300   ConnectClass c;
 301
 302   LoadConf(CONFIG_FILE,&config_f);
 303
 304   ConfValue("server","name",0,ServerName,&config_f);
 305   ConfValue("server","description",0,ServerDesc,&config_f);
 306   ConfValue("server","network",0,Network,&config_f);
 307   ConfValue("admin","name",0,AdminName,&config_f);
 308   ConfValue("admin","email",0,AdminEmail,&config_f);
 309   ConfValue("admin","nick",0,AdminNick,&config_f);
 310   ConfValue("files","motd",0,motd,&config_f);
 311   ConfValue("files","rules",0,rules,&config_f);
 312   ConfValue("power","diepass",0,diepass,&config_f);
 313   ConfValue("power","pause",0,pauseval,&config_f);
 314   ConfValue("power","restartpass",0,restartpass,&config_f);
 315   ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 316   ConfValue("die","value",0,DieValue,&config_f);
 317   ConfValue("options","loglevel",0,dbg,&config_f);
 318   ConfValue("options","netbuffersize",0,NB,&config_f);
 319   NetBufferSize = atoi(NB);
 320   if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 321   {
 322         log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 323         NetBufferSize = 10240;
 324   }
 325   if (!strcmp(dbg,"debug"))
 326         LogLevel = DEBUG;
 327   if (!strcmp(dbg,"verbose"))
 328         LogLevel = VERBOSE;
 329   if (!strcmp(dbg,"default"))
 330         LogLevel = DEFAULT;
 331   if (!strcmp(dbg,"sparse"))
 332         LogLevel = SPARSE;
 333   if (!strcmp(dbg,"none"))
 334         LogLevel = NONE;
 335   readfile(MOTD,motd);
 336   log(DEBUG,"Reading message of the day");
 337   readfile(RULES,rules);
 338   log(DEBUG,"Reading connect classes");
 339   Classes.clear();
 340   for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 341   {
 342         strcpy(Value,"");
 343         ConfValue("connect","allow",i,Value,&config_f);
 344         ConfValue("connect","timeout",i,timeout,&config_f);
 345         ConfValue("connect","flood",i,flood,&config_f);
 346         if (strcmp(Value,""))
 347         {
 348                 strcpy(c.host,Value);
 349                 c.type = CC_ALLOW;
 350                 strcpy(Value,"");
 351                 ConfValue("connect","password",i,Value,&config_f);
 352                 strcpy(c.pass,Value);
 353                 c.registration_timeout = 90; // default is 2 minutes
 354                 c.flood = atoi(flood);
 355                 if (atoi(timeout)>0)
 356                 {
 357                         c.registration_timeout = atoi(timeout);
 358                 }
 359                 Classes.push_back(c);
 360                 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 361         }
 362         else
 363         {
 364                 ConfValue("connect","deny",i,Value,&config_f);
 365                 strcpy(c.host,Value);
 366                 c.type = CC_DENY;
 367                 Classes.push_back(c);
 368                 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 369         }
 370
 371   }
 372 }
 373
 374 /* write formatted text to a socket, in same format as printf */
 375
 376 void Write(int sock,char *text, ...)
 377 {
 378   if (!text)
 379   {
 380         log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 381         return;
 382   }
 383   char textbuffer[MAXBUF];
 384   va_list argsPtr;
 385   char tb[MAXBUF];
 386
 387   va_start (argsPtr, text);
 388   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 389   va_end(argsPtr);
 390   sprintf(tb,"%s\r\n",textbuffer);
 391   chop(tb);
 392   if (sock != -1)
 393   {
 394         write(sock,tb,strlen(tb));
 395         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 396   }
 397 }
 398
 399 /* write a server formatted numeric response to a single socket */
 400
 401 void WriteServ(int sock, char* text, ...)
 402 {
 403   if (!text)
 404   {
 405         log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 406         return;
 407   }
 408   char textbuffer[MAXBUF],tb[MAXBUF];
 409   va_list argsPtr;
 410   va_start (argsPtr, text);
 411
 412   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 413   va_end(argsPtr);
 414   sprintf(tb,":%s %s\r\n",ServerName,textbuffer);
 415   chop(tb);
 416   if (sock != -1)
 417   {
 418         write(sock,tb,strlen(tb));
 419         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 420   }
 421 }
 422
 423 /* write text from an originating user to originating user */
 424
 425 void WriteFrom(int sock, userrec *user,char* text, ...)
 426 {
 427   if ((!text) || (!user))
 428   {
 429         log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 430         return;
 431   }
 432   char textbuffer[MAXBUF],tb[MAXBUF];
 433   va_list argsPtr;
 434   va_start (argsPtr, text);
 435
 436   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 437   va_end(argsPtr);
 438   sprintf(tb,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 439   chop(tb);
 440   if (sock != -1)
 441   {
 442         write(sock,tb,strlen(tb));
 443         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 444   }
 445 }
 446
 447 /* write text to an destination user from a source user (e.g. user privmsg) */
 448
 449 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 450 {
 451         if ((!dest) || (!data))
 452         {
 453                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 454                 return;
 455         }
 456         char textbuffer[MAXBUF],tb[MAXBUF];
 457         va_list argsPtr;
 458         va_start (argsPtr, data);
 459         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 460         va_end(argsPtr);
 461         chop(tb);
 462
 463         // if no source given send it from the server.
 464         if (!source)
 465         {
 466                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 467         }
 468         else
 469         {
 470                 WriteFrom(dest->fd,source,"%s",textbuffer);
 471         }
 472 }
 473
 474 /* write formatted text from a source user to all users on a channel
 475  * including the sender (NOT for privmsg, notice etc!) */
 476
 477 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 478 {
 479         if ((!Ptr) || (!user) || (!text))
 480         {
 481                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 482                 return;
 483         }
 484         char textbuffer[MAXBUF];
 485         va_list argsPtr;
 486         va_start (argsPtr, text);
 487         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 488         va_end(argsPtr);
 489         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 490         {
 491                 if (has_channel(i->second,Ptr))
 492                 {
 493                         WriteTo(user,i->second,"%s",textbuffer);
 494                 }
 495         }
 496 }
 497
 498 /* write formatted text from a source user to all users on a channel
 499  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 500  * users on remote servers */
 501
 502 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 503 {
 504         if ((!Ptr) || (!text))
 505         {
 506                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 507                 return;
 508         }
 509         char textbuffer[MAXBUF];
 510         va_list argsPtr;
 511         va_start (argsPtr, text);
 512         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 513         va_end(argsPtr);
 514         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 515         {
 516                 if (has_channel(i->second,Ptr))
 517                 {
 518                         if (i->second->fd != -1)
 519                         {
 520                                 if (!user)
 521                                 {
 522                                         WriteServ(i->second->fd,"%s",textbuffer);
 523                                 }
 524                                 else
 525                                 {
 526                                         WriteTo(user,i->second,"%s",textbuffer);
 527                                 }
 528                         }
 529                 }
 530         }
 531 }
 532
 533
 534 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 535 {
 536         if ((!Ptr) || (!user) || (!text))
 537         {
 538                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 539                 return;
 540         }
 541         char textbuffer[MAXBUF];
 542         va_list argsPtr;
 543         va_start (argsPtr, text);
 544         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 545         va_end(argsPtr);
 546         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 547         {
 548                 if (i->second)
 549                 {
 550                         if (has_channel(i->second,Ptr))
 551                         {
 552                                 WriteServ(i->second->fd,"%s",textbuffer);
 553                         }
 554                 }
 555         }
 556 }
 557
 558
 559 /* write formatted text from a source user to all users on a channel except
 560  * for the sender (for privmsg etc) */
 561
 562 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 563 {
 564         if ((!Ptr) || (!user) || (!text))
 565         {
 566                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 567                 return;
 568         }
 569         char textbuffer[MAXBUF];
 570         va_list argsPtr;
 571         va_start (argsPtr, text);
 572         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 573         va_end(argsPtr);
 574
 575         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 576         {
 577                 if (i->second)
 578                 {
 579                         if (has_channel(i->second,Ptr) && (user != i->second))
 580                         {
 581                                 WriteTo(user,i->second,"%s",textbuffer);
 582                         }
 583                 }
 584         }
 585 }
 586
 587
 588 std::string GetServerDescription(char* servername)
 589 {
 590         for (int j = 0; j < 32; j++)
 591         {
 592                 if (me[j] != NULL)
 593                 {
 594                         for (int k = 0; k < me[j]->connectors.size(); k++)
 595                         {
 596                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 597                                 {
 598                                         return me[j]->connectors[k].GetDescription();
 599                                 }
 600                         }
 601                 }
 602                 return ServerDesc; // not a remote server that can be found, it must be me.
 603         }
 604 }
 605
 606
 607 /* write a formatted string to all users who share at least one common
 608  * channel, including the source user e.g. for use in NICK */
 609
 610 void WriteCommon(userrec *u, char* text, ...)
 611 {
 612         if (!u)
 613         {
 614                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 615                 return;
 616         }
 617
 618         if (u->registered != 7) {
 619                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 620                 return;
 621         }
 622
 623         char textbuffer[MAXBUF];
 624         va_list argsPtr;
 625         va_start (argsPtr, text);
 626         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 627         va_end(argsPtr);
 628
 629         WriteFrom(u->fd,u,"%s",textbuffer);
 630
 631         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 632         {
 633                 if (i->second)
 634                 {
 635                         if (common_channels(u,i->second) && (i->second != u))
 636                         {
 637                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 638                         }
 639                 }
 640         }
 641 }
 642
 643 /* write a formatted string to all users who share at least one common
 644  * channel, NOT including the source user e.g. for use in QUIT */
 645
 646 void WriteCommonExcept(userrec *u, char* text, ...)
 647 {
 648         if (!u)
 649         {
 650                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 651                 return;
 652         }
 653
 654         if (u->registered != 7) {
 655                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 656                 return;
 657         }
 658
 659         char textbuffer[MAXBUF];
 660         va_list argsPtr;
 661         va_start (argsPtr, text);
 662         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 663         va_end(argsPtr);
 664
 665         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 666         {
 667                 if (i->second)
 668                 {
 669                         if ((common_channels(u,i->second)) && (u != i->second))
 670                         {
 671                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 672                         }
 673                 }
 674         }
 675 }
 676
 677 void WriteOpers(char* text, ...)
 678 {
 679         if (!text)
 680         {
 681                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 682                 return;
 683         }
 684
 685         char textbuffer[MAXBUF];
 686         va_list argsPtr;
 687         va_start (argsPtr, text);
 688         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 689         va_end(argsPtr);
 690
 691         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 692         {
 693                 if (i->second)
 694                 {
 695                         if (strchr(i->second->modes,'o'))
 696                         {
 697                                 if (strchr(i->second->modes,'s'))
 698                                 {
 699                                         // send server notices to all with +s
 700                                         // (TODO: needs SNOMASKs)
 701                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 702                                 }
 703                         }
 704                 }
 705         }
 706 }
 707
 708 // returns TRUE of any users on channel C occupy server 'servername'.
 709
 710 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 711 {
 712         log(DEBUG,"ChanAnyOnThisServer");
 713         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 714         {
 715                 if (has_channel(i->second,c))
 716                 {
 717                         if (!strcasecmp(i->second->server,servername))
 718                         {
 719                                 return true;
 720                         }
 721                 }
 722         }
 723         return false;
 724 }
 725
 726 // returns true if user 'u' shares any common channels with any users on server 'servername'
 727
 728 bool CommonOnThisServer(userrec* u,const char* servername)
 729 {
 730         log(DEBUG,"ChanAnyOnThisServer");
 731         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 732         {
 733                 if ((common_channels(u,i->second)) && (u != i->second))
 734                 {
 735                         if (!strcasecmp(i->second->server,servername))
 736                         {
 737                                 log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 738                                 return true;
 739                         }
 740                 }
 741         }
 742         return false;
 743 }
 744
 745
 746 void NetSendToCommon(userrec* u, char* s)
 747 {
 748         char buffer[MAXBUF];
 749         snprintf(buffer,MAXBUF,"%s",s);
 750
 751         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
 752
 753         for (int j = 0; j < 32; j++)
 754         {
 755                 if (me[j] != NULL)
 756                 {
 757                         for (int k = 0; k < me[j]->connectors.size(); k++)
 758                         {
 759                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 760                                 {
 761                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 762                                 }
 763                         }
 764                 }
 765         }
 766 }
 767
 768
 769 void NetSendToAll(char* s)
 770 {
 771         char buffer[MAXBUF];
 772         snprintf(buffer,MAXBUF,"%s",s);
 773
 774         log(DEBUG,"NetSendToAll: '%s'",s);
 775
 776         for (int j = 0; j < 32; j++)
 777         {
 778                 if (me[j] != NULL)
 779                 {
 780                         for (int k = 0; k < me[j]->connectors.size(); k++)
 781                         {
 782                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 783                         }
 784                 }
 785         }
 786 }
 787
 788 void NetSendToAllAlive(char* s)
 789 {
 790         char buffer[MAXBUF];
 791         snprintf(buffer,MAXBUF,"%s",s);
 792
 793         log(DEBUG,"NetSendToAllAlive: '%s'",s);
 794
 795         for (int j = 0; j < 32; j++)
 796         {
 797                 if (me[j] != NULL)
 798                 {
 799                         for (int k = 0; k < me[j]->connectors.size(); k++)
 800                         {
 801                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
 802                                 {
 803                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 804                                 }
 805                                 else
 806                                 {
 807                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
 808                                 }
 809                         }
 810                 }
 811         }
 812 }
 813
 814
 815 void NetSendToOne(char* target,char* s)
 816 {
 817         char buffer[MAXBUF];
 818         snprintf(buffer,MAXBUF,"%s",s);
 819
 820         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
 821
 822         for (int j = 0; j < 32; j++)
 823         {
 824                 if (me[j] != NULL)
 825                 {
 826                         for (int k = 0; k < me[j]->connectors.size(); k++)
 827                         {
 828                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 829                                 {
 830                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 831                                 }
 832                         }
 833                 }
 834         }
 835 }
 836
 837 void NetSendToAllExcept(const char* target,char* s)
 838 {
 839         char buffer[MAXBUF];
 840         snprintf(buffer,MAXBUF,"%s",s);
 841
 842         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
 843
 844         for (int j = 0; j < 32; j++)
 845         {
 846                 if (me[j] != NULL)
 847                 {
 848                         for (int k = 0; k < me[j]->connectors.size(); k++)
 849                         {
 850                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 851                                 {
 852                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 853                                 }
 854                         }
 855                 }
 856         }
 857 }
 858
 859
 860 void WriteMode(const char* modes, int flags, const char* text, ...)
 861 {
 862         if ((!text) || (!modes) || (!flags))
 863         {
 864                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
 865                 return;
 866         }
 867
 868         char textbuffer[MAXBUF];
 869         va_list argsPtr;
 870         va_start (argsPtr, text);
 871         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 872         va_end(argsPtr);
 873
 874         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 875         {
 876                 if (i->second)
 877                 {
 878                         bool send_to_user = false;
 879
 880                         if (flags == WM_AND)
 881                         {
 882                                 send_to_user = true;
 883                                 for (int n = 0; n < strlen(modes); n++)
 884                                 {
 885                                         if (!hasumode(i->second,modes[n]))
 886                                         {
 887                                                 send_to_user = false;
 888                                                 break;
 889                                         }
 890                                 }
 891                         }
 892                         else if (flags == WM_OR)
 893                         {
 894                                 send_to_user = false;
 895                                 for (int n = 0; n < strlen(modes); n++)
 896                                 {
 897                                         if (hasumode(i->second,modes[n]))
 898                                         {
 899                                                 send_to_user = true;
 900                                                 break;
 901                                         }
 902                                 }
 903                         }
 904
 905                         if (send_to_user)
 906                         {
 907                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 908                         }
 909                 }
 910         }
 911 }
 912
 913
 914 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
 915 {
 916         if ((!text) || (!source))
 917         {
 918                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 919                 return;
 920         }
 921
 922         int i = 0;
 923         char textbuffer[MAXBUF];
 924         va_list argsPtr;
 925         va_start (argsPtr, text);
 926         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 927         va_end(argsPtr);
 928
 929         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 930         {
 931                 if (i->second)
 932                 {
 933                         if (strchr(i->second->modes,'w'))
 934                         {
 935                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
 936                         }
 937                 }
 938         }
 939
 940         if (!local_only)
 941         {
 942                 char buffer[MAXBUF];
 943                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
 944                 NetSendToAll(buffer);
 945         }
 946 }
 947
 948 /* convert a string to lowercase. Note following special circumstances
 949  * taken from RFC 1459. Many "official" server branches still hold to this
 950  * rule so i will too;
 951  *
 952  *  Because of IRC's scandanavian origin, the characters {}| are
 953  *  considered to be the lower case equivalents of the characters []\,
 954  *  respectively. This is a critical issue when determining the
 955  *  equivalence of two nicknames.
 956  */
 957
 958 void strlower(char *n)
 959 {
 960         if (!n)
 961         {
 962                 return;
 963         }
 964         for (int i = 0; i != strlen(n); i++)
 965         {
 966                 n[i] = tolower(n[i]);
 967                 if (n[i] == '[')
 968                         n[i] = '{';
 969                 if (n[i] == ']')
 970                         n[i] = '}';
 971                 if (n[i] == '\\')
 972                         n[i] = '|';
 973         }
 974 }
 975
 976
 977
 978 /* Find a user record by nickname and return a pointer to it */
 979
 980 userrec* Find(string nick)
 981 {
 982         user_hash::iterator iter = clientlist.find(nick);
 983
 984         if (iter == clientlist.end())
 985                 /* Couldn't find it */
 986                 return NULL;
 987
 988         return iter->second;
 989 }
 990
 991 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
 992 {
 993         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 994         {
 995                 if (i->second)
 996                 {
 997                         if (i->second->fd == fd)
 998                         {
 999                                 i->second->bytes_out+=data_out;
1000                                 i->second->cmds_out++;
1001                         }
1002                 }
1003         }
1004 }
1005
1006
1007 /* find a channel record by channel name and return a pointer to it */
1008
1009 chanrec* FindChan(const char* chan)
1010 {
1011         if (!chan)
1012         {
1013                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1014                 return NULL;
1015         }
1016
1017         chan_hash::iterator iter = chanlist.find(chan);
1018
1019         if (iter == chanlist.end())
1020                 /* Couldn't find it */
1021                 return NULL;
1022
1023         return iter->second;
1024 }
1025
1026
1027 void purge_empty_chans(void)
1028 {
1029         int go_again = 1, purge = 0;
1030
1031         while (go_again)
1032         {
1033                 go_again = 0;
1034                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1035                 {
1036                         if (i->second) {
1037                                 if (!usercount(i->second))
1038                                 {
1039                                         /* kill the record */
1040                                         if (i != chanlist.end())
1041                                         {
1042                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1043                                                 delete i->second;
1044                                                 chanlist.erase(i);
1045                                                 go_again = 1;
1046                                                 purge++;
1047                                                 break;
1048                                         }
1049                                 }
1050                                 else
1051                                 {
1052                                         log(DEBUG,"skipped purge for %s",i->second->name);
1053                                 }
1054                         }
1055                 }
1056         }
1057         log(DEBUG,"completed channel purge, killed %d",purge);
1058 }
1059
1060
1061 char scratch[MAXBUF];
1062 char sparam[MAXBUF];
1063
1064 char* chanmodes(chanrec *chan)
1065 {
1066         if (!chan)
1067         {
1068                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1069                 strcpy(scratch,"");
1070                 return scratch;
1071         }
1072
1073         strcpy(scratch,"");
1074         strcpy(sparam,"");
1075         if (chan->noexternal)
1076         {
1077                 strncat(scratch,"n",MAXMODES);
1078         }
1079         if (chan->topiclock)
1080         {
1081                 strncat(scratch,"t",MAXMODES);
1082         }
1083         if (strcmp(chan->key,""))
1084         {
1085                 strncat(scratch,"k",MAXMODES);
1086         }
1087         if (chan->limit)
1088         {
1089                 strncat(scratch,"l",MAXMODES);
1090         }
1091         if (chan->inviteonly)
1092         {
1093                 strncat(scratch,"i",MAXMODES);
1094         }
1095         if (chan->moderated)
1096         {
1097                 strncat(scratch,"m",MAXMODES);
1098         }
1099         if (chan->secret)
1100         {
1101                 strncat(scratch,"s",MAXMODES);
1102         }
1103         if (chan->c_private)
1104         {
1105                 strncat(scratch,"p",MAXMODES);
1106         }
1107         if (strcmp(chan->key,""))
1108         {
1109                 strncat(sparam,chan->key,MAXBUF);
1110         }
1111         if (chan->limit)
1112         {
1113                 char foo[24];
1114                 sprintf(foo," %d",chan->limit);
1115                 strncat(sparam,foo,MAXBUF);
1116         }
1117         if (strlen(chan->custom_modes))
1118         {
1119                 strncat(scratch,chan->custom_modes,MAXMODES);
1120                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1121                 {
1122                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1123                         if (extparam != "")
1124                         {
1125                                 strncat(sparam," ",MAXBUF);
1126                                 strncat(sparam,extparam.c_str(),MAXBUF);
1127                         }
1128                 }
1129         }
1130         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1131         strncat(scratch,sparam,MAXMODES);
1132         return scratch;
1133 }
1134
1135
1136 /* compile a userlist of a channel into a string, each nick seperated by
1137  * spaces and op, voice etc status shown as @ and + */
1138
1139 void userlist(userrec *user,chanrec *c)
1140 {
1141         if ((!c) || (!user))
1142         {
1143                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1144                 return;
1145         }
1146
1147         sprintf(list,"353 %s = %s :", user->nick, c->name);
1148         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1149         {
1150                 if (has_channel(i->second,c))
1151                 {
1152                         if (isnick(i->second->nick))
1153                         {
1154                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1155                                 {
1156                                         /* user is +i, and source not on the channel, does not show
1157                                          * nick in NAMES list */
1158                                         continue;
1159                                 }
1160                                 strcat(list,cmode(i->second,c));
1161                                 strcat(list,i->second->nick);
1162                                 strcat(list," ");
1163                                 if (strlen(list)>(480-NICKMAX))
1164                                 {
1165                                         /* list overflowed into
1166                                          * multiple numerics */
1167                                         WriteServ(user->fd,list);
1168                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1169                                 }
1170                         }
1171                 }
1172         }
1173         /* if whats left in the list isnt empty, send it */
1174         if (list[strlen(list)-1] != ':')
1175         {
1176                 WriteServ(user->fd,list);
1177         }
1178 }
1179
1180 /* return a count of the users on a specific channel accounting for
1181  * invisible users who won't increase the count. e.g. for /LIST */
1182
1183 int usercount_i(chanrec *c)
1184 {
1185         int i = 0;
1186         int count = 0;
1187
1188         if (!c)
1189         {
1190                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1191                 return 0;
1192         }
1193
1194         strcpy(list,"");
1195         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1196         {
1197                 if (i->second)
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                                         count++;
1210                                 }
1211                         }
1212                 }
1213         }
1214         log(DEBUG,"usercount_i: %s %d",c->name,count);
1215         return count;
1216 }
1217
1218
1219 int usercount(chanrec *c)
1220 {
1221         int i = 0;
1222         int count = 0;
1223
1224         if (!c)
1225         {
1226                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1227                 return 0;
1228         }
1229
1230         strcpy(list,"");
1231         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1232         {
1233                 if (i->second)
1234                 {
1235                         if (has_channel(i->second,c))
1236                         {
1237                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1238                                 {
1239                                         count++;
1240                                 }
1241                         }
1242                 }
1243         }
1244         log(DEBUG,"usercount: %s %d",c->name,count);
1245         return count;
1246 }
1247
1248
1249 /* add a channel to a user, creating the record for it if needed and linking
1250  * it to the user record */
1251
1252 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1253 {
1254         if ((!user) || (!cn))
1255         {
1256                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1257                 return 0;
1258         }
1259
1260         int i = 0;
1261         chanrec* Ptr;
1262         int created = 0;
1263         char cname[MAXBUF];
1264
1265         strncpy(cname,cn,MAXBUF);
1266
1267         // we MUST declare this wherever we use FOREACH_RESULT
1268         int MOD_RESULT = 0;
1269
1270         if (strlen(cname) > CHANMAX-1)
1271         {
1272                 cname[CHANMAX-1] = '\0';
1273         }
1274
1275         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1276
1277         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1278         {
1279                 return NULL; // already on the channel!
1280         }
1281
1282
1283         if (!FindChan(cname))
1284         {
1285                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1286                 if (MOD_RESULT) {
1287                         return NULL;
1288                 }
1289
1290                 /* create a new one */
1291                 log(DEBUG,"add_channel: creating: %s",cname);
1292                 {
1293                         chanlist[cname] = new chanrec();
1294
1295                         strcpy(chanlist[cname]->name, cname);
1296                         chanlist[cname]->topiclock = 1;
1297                         chanlist[cname]->noexternal = 1;
1298                         chanlist[cname]->created = time(NULL);
1299                         strcpy(chanlist[cname]->topic, "");
1300                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1301                         chanlist[cname]->topicset = 0;
1302                         Ptr = chanlist[cname];
1303                         log(DEBUG,"add_channel: created: %s",cname);
1304                         /* set created to 2 to indicate user
1305                          * is the first in the channel
1306                          * and should be given ops */
1307                         created = 2;
1308                 }
1309         }
1310         else
1311         {
1312                 /* channel exists, just fish out a pointer to its struct */
1313                 Ptr = FindChan(cname);
1314                 if (Ptr)
1315                 {
1316                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1317
1318                         // the override flag allows us to bypass channel modes
1319                         // and bans (used by servers)
1320                         if (!override)
1321                         {
1322                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1323                                 if (MOD_RESULT) {
1324                                         return NULL;
1325                                 }
1326
1327                                 if (strcmp(Ptr->key,""))
1328                                 {
1329                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1330                                         if (!key)
1331                                         {
1332                                                 log(DEBUG,"add_channel: no key given in JOIN");
1333                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1334                                                 return NULL;
1335                                         }
1336                                         else
1337                                         {
1338                                                 log(DEBUG,"key at %p is %s",key,key);
1339                                                 if (strcasecmp(key,Ptr->key))
1340                                                 {
1341                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1342                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1343                                                         return NULL;
1344                                                 }
1345                                         }
1346                                 }
1347                                 log(DEBUG,"add_channel: no key");
1348
1349                                 if (Ptr->inviteonly)
1350                                 {
1351                                         log(DEBUG,"add_channel: channel is +i");
1352                                         if (user->IsInvited(Ptr->name))
1353                                         {
1354                                                 /* user was invited to channel */
1355                                                 /* there may be an optional channel NOTICE here */
1356                                         }
1357                                         else
1358                                         {
1359                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1360                                                 return NULL;
1361                                         }
1362                                 }
1363                                 log(DEBUG,"add_channel: channel is not +i");
1364
1365                                 if (Ptr->limit)
1366                                 {
1367                                         if (usercount(Ptr) == Ptr->limit)
1368                                         {
1369                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1370                                                 return NULL;
1371                                         }
1372                                 }
1373
1374                                 log(DEBUG,"add_channel: about to walk banlist");
1375
1376                                 /* check user against the channel banlist */
1377                                 if (Ptr)
1378                                 {
1379                                         if (Ptr->bans.size())
1380                                         {
1381                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1382                                                 {
1383                                                         if (match(user->GetFullHost(),i->data))
1384                                                         {
1385                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1386                                                                 return NULL;
1387                                                         }
1388                                                 }
1389                                         }
1390                                 }
1391
1392                                 log(DEBUG,"add_channel: bans checked");
1393
1394
1395                                 if ((Ptr) && (user))
1396                                 {
1397                                         user->RemoveInvite(Ptr->name);
1398                                 }
1399
1400                                 log(DEBUG,"add_channel: invites removed");
1401
1402                         }
1403                         else
1404                         {
1405                                 log(DEBUG,"Overridden checks");
1406                         }
1407
1408
1409                 }
1410                 created = 1;
1411         }
1412
1413         log(DEBUG,"Passed channel checks");
1414
1415         for (int i =0; i != MAXCHANS; i++)
1416         {
1417                 log(DEBUG,"Check location %d",i);
1418                 if (user->chans[i].channel == NULL)
1419                 {
1420                         log(DEBUG,"Adding into their channel list at location %d",i);
1421
1422                         if (created == 2)
1423                         {
1424                                 /* first user in is given ops */
1425                                 user->chans[i].uc_modes = UCMODE_OP;
1426                         }
1427                         else
1428                         {
1429                                 user->chans[i].uc_modes = 0;
1430                         }
1431                         user->chans[i].channel = Ptr;
1432                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1433
1434                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1435                         {
1436                                 // use the stamdard J token with no privilages.
1437                                 char buffer[MAXBUF];
1438                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1439                                 NetSendToAll(buffer);
1440                         }
1441
1442                         log(DEBUG,"Sent JOIN to client");
1443
1444                         if (Ptr->topicset)
1445                         {
1446                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1447                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1448                         }
1449                         userlist(user,Ptr);
1450                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1451                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1452                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1453                         FOREACH_MOD OnUserJoin(user,Ptr);
1454                         return Ptr;
1455                 }
1456         }
1457         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1458         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1459         return NULL;
1460 }
1461
1462 /* remove a channel from a users record, and remove the record from memory
1463  * if the channel has become empty */
1464
1465 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1466 {
1467         if ((!user) || (!cname))
1468         {
1469                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1470                 return NULL;
1471         }
1472
1473         chanrec* Ptr;
1474         int created = 0;
1475
1476         if ((!cname) || (!user))
1477         {
1478                 return NULL;
1479         }
1480
1481         Ptr = FindChan(cname);
1482
1483         if (!Ptr)
1484         {
1485                 return NULL;
1486         }
1487
1488         FOREACH_MOD OnUserPart(user,Ptr);
1489         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1490
1491         for (int i =0; i != MAXCHANS; i++)
1492         {
1493                 /* zap it from the channel list of the user */
1494                 if (user->chans[i].channel == Ptr)
1495                 {
1496                         if (reason)
1497                         {
1498                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1499
1500                                 if (!local)
1501                                 {
1502                                         char buffer[MAXBUF];
1503                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1504                                         NetSendToAll(buffer);
1505                                 }
1506
1507
1508                         }
1509                         else
1510                         {
1511                                 if (!local)
1512                                 {
1513                                         char buffer[MAXBUF];
1514                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1515                                         NetSendToAll(buffer);
1516                                 }
1517
1518                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1519                         }
1520                         user->chans[i].uc_modes = 0;
1521                         user->chans[i].channel = NULL;
1522                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1523                         break;
1524                 }
1525         }
1526
1527         /* if there are no users left on the channel */
1528         if (!usercount(Ptr))
1529         {
1530                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1531
1532                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1533
1534                 /* kill the record */
1535                 if (iter != chanlist.end())
1536                 {
1537                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1538                         delete iter->second;
1539                         chanlist.erase(iter);
1540                 }
1541         }
1542 }
1543
1544
1545 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1546 {
1547         if ((!src) || (!user) || (!Ptr) || (!reason))
1548         {
1549                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1550                 return;
1551         }
1552
1553         int i = 0;
1554         int created = 0;
1555
1556         if ((!Ptr) || (!user) || (!src))
1557         {
1558                 return;
1559         }
1560
1561         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1562
1563         if (!has_channel(user,Ptr))
1564         {
1565                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1566                 return;
1567         }
1568         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1569         {
1570                 if (cstatus(src,Ptr) == STATUS_HOP)
1571                 {
1572                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1573                 }
1574                 else
1575                 {
1576                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1577                 }
1578
1579                 return;
1580         }
1581
1582         for (int i =0; i != MAXCHANS; i++)
1583         {
1584                 /* zap it from the channel list of the user */
1585                 if (user->chans[i].channel)
1586                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1587                 {
1588                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1589                         user->chans[i].uc_modes = 0;
1590                         user->chans[i].channel = NULL;
1591                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1592                         break;
1593                 }
1594         }
1595
1596         /* if there are no users left on the channel */
1597         if (!usercount(Ptr))
1598         {
1599                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1600
1601                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1602
1603                 /* kill the record */
1604                 if (iter != chanlist.end())
1605                 {
1606                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1607                         delete iter->second;
1608                         chanlist.erase(iter);
1609                 }
1610         }
1611 }
1612
1613
1614 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1615 {
1616         userrec *d;
1617         int i;
1618
1619         if ((!user) || (!dest) || (!chan))
1620         {
1621                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1622                 return 0;
1623         }
1624         if (status < STATUS_OP)
1625         {
1626                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1627                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1628                 return 0;
1629         }
1630         else
1631         {
1632                 if (!isnick(dest))
1633                 {
1634                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1635                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1636                         return 0;
1637                 }
1638                 d = Find(dest);
1639                 if (!d)
1640                 {
1641                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1642                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1643                         return 0;
1644                 }
1645                 else
1646                 {
1647                         for (int i = 0; i != MAXCHANS; i++)
1648                         {
1649                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1650                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1651                                 {
1652                                         if (d->chans[i].uc_modes & UCMODE_OP)
1653                                         {
1654                                                 /* mode already set on user, dont allow multiple */
1655                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1656                                                 return 0;
1657                                         }
1658                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1659                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1660                                         return 1;
1661                                 }
1662                         }
1663                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1664                 }
1665         }
1666         return 1;
1667 }
1668
1669 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1670 {
1671         userrec *d;
1672         int i;
1673
1674         if ((!user) || (!dest) || (!chan))
1675         {
1676                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1677                 return 0;
1678         }
1679         if (status != STATUS_OP)
1680         {
1681                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1682                 return 0;
1683         }
1684         else
1685         {
1686                 d = Find(dest);
1687                 if (!isnick(dest))
1688                 {
1689                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1690                         return 0;
1691                 }
1692                 if (!d)
1693                 {
1694                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1695                         return 0;
1696                 }
1697                 else
1698                 {
1699                         for (int i = 0; i != MAXCHANS; i++)
1700                         {
1701                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1702                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1703                                 {
1704                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1705                                         {
1706                                                 /* mode already set on user, dont allow multiple */
1707                                                 return 0;
1708                                         }
1709                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1710                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1711                                         return 1;
1712                                 }
1713                         }
1714                 }
1715         }
1716         return 1;
1717 }
1718
1719 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1720 {
1721         userrec *d;
1722         int i;
1723
1724         if ((!user) || (!dest) || (!chan))
1725         {
1726                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1727                 return 0;
1728         }
1729         if (status < STATUS_HOP)
1730         {
1731                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1732                 return 0;
1733         }
1734         else
1735         {
1736                 d = Find(dest);
1737                 if (!isnick(dest))
1738                 {
1739                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1740                         return 0;
1741                 }
1742                 if (!d)
1743                 {
1744                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1745                         return 0;
1746                 }
1747                 else
1748                 {
1749                         for (int i = 0; i != MAXCHANS; i++)
1750                         {
1751                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1752                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1753                                 {
1754                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1755                                         {
1756                                                 /* mode already set on user, dont allow multiple */
1757                                                 return 0;
1758                                         }
1759                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1760                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1761                                         return 1;
1762                                 }
1763                         }
1764                 }
1765         }
1766         return 1;
1767 }
1768
1769 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1770 {
1771         userrec *d;
1772         int i;
1773
1774         if ((!user) || (!dest) || (!chan))
1775         {
1776                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1777                 return 0;
1778         }
1779         if (status < STATUS_OP)
1780         {
1781                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
1782                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1783                 return 0;
1784         }
1785         else
1786         {
1787                 d = Find(dest);
1788                 if (!isnick(dest))
1789                 {
1790                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
1791                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1792                         return 0;
1793                 }
1794                 if (!d)
1795                 {
1796                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
1797                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1798                         return 0;
1799                 }
1800                 else
1801                 {
1802                         for (int i = 0; i != MAXCHANS; i++)
1803                         {
1804                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1805                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1806                                 {
1807                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
1808                                         {
1809                                                 /* mode already set on user, dont allow multiple */
1810                                                 return 0;
1811                                         }
1812                                         d->chans[i].uc_modes ^= UCMODE_OP;
1813                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
1814                                         return 1;
1815                                 }
1816                         }
1817                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
1818                 }
1819         }
1820         return 1;
1821 }
1822
1823 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
1824 {
1825         userrec *d;
1826         int i;
1827
1828         if ((!user) || (!dest) || (!chan))
1829         {
1830                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
1831                 return 0;
1832         }
1833         if (status != STATUS_OP)
1834         {
1835                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1836                 return 0;
1837         }
1838         else
1839         {
1840                 d = Find(dest);
1841                 if (!isnick(dest))
1842                 {
1843                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1844                         return 0;
1845                 }
1846                 if (!d)
1847                 {
1848                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1849                         return 0;
1850                 }
1851                 else
1852                 {
1853                         for (int i = 0; i != MAXCHANS; i++)
1854                         {
1855                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1856                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1857                                 {
1858                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
1859                                         {
1860                                                 /* mode already set on user, dont allow multiple */
1861                                                 return 0;
1862                                         }
1863                                         d->chans[i].uc_modes ^= UCMODE_HOP;
1864                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
1865                                         return 1;
1866                                 }
1867                         }
1868                 }
1869         }
1870         return 1;
1871 }
1872
1873 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
1874 {
1875         userrec *d;
1876         int i;
1877
1878         if ((!user) || (!dest) || (!chan))
1879         {
1880                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
1881                 return 0;
1882         }
1883         if (status < STATUS_HOP)
1884         {
1885                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1886                 return 0;
1887         }
1888         else
1889         {
1890                 d = Find(dest);
1891                 if (!isnick(dest))
1892                 {
1893                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1894                         return 0;
1895                 }
1896                 if (!d)
1897                 {
1898                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1899                         return 0;
1900                 }
1901                 else
1902                 {
1903                         for (int i = 0; i != MAXCHANS; i++)
1904                         {
1905                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1906                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1907                                 {
1908                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
1909                                         {
1910                                                 /* mode already set on user, dont allow multiple */
1911                                                 return 0;
1912                                         }
1913                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
1914                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
1915                                         return 1;
1916                                 }
1917                         }
1918                 }
1919         }
1920         return 1;
1921 }
1922
1923 void TidyBan(char *ban)
1924 {
1925         if (!ban) {
1926                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
1927                 return;
1928         }
1929
1930         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
1931
1932         strcpy(temp,ban);
1933
1934         char* pos_of_pling = strchr(temp,'!');
1935         char* pos_of_at = strchr(temp,'@');
1936
1937         pos_of_pling[0] = '\0';
1938         pos_of_at[0] = '\0';
1939         pos_of_pling++;
1940         pos_of_at++;
1941
1942         strncpy(NICK,temp,NICKMAX);
1943         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
1944         strncpy(HOST,pos_of_at,160);
1945
1946         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
1947 }
1948
1949 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
1950 {
1951         if ((!user) || (!dest) || (!chan)) {
1952                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
1953                 return 0;
1954         }
1955
1956         BanItem b;
1957         if ((!user) || (!dest) || (!chan))
1958                 return 0;
1959         if (strchr(dest,'!')==0)
1960                 return 0;
1961         if (strchr(dest,'@')==0)
1962                 return 0;
1963         for (int i = 0; i < strlen(dest); i++)
1964                 if (dest[i] < 32)
1965                         return 0;
1966         for (int i = 0; i < strlen(dest); i++)
1967                 if (dest[i] > 126)
1968                         return 0;
1969         int c = 0;
1970         for (int i = 0; i < strlen(dest); i++)
1971                 if (dest[i] == '!')
1972                         c++;
1973         if (c>1)
1974                 return 0;
1975         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         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
1982
1983         TidyBan(dest);
1984         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
1985         {
1986                 if (!strcasecmp(i->data,dest))
1987                 {
1988                         // dont allow a user to set the same ban twice
1989                         return 0;
1990                 }
1991         }
1992
1993         b.set_time = time(NULL);
1994         strncpy(b.data,dest,MAXBUF);
1995         strncpy(b.set_by,user->nick,NICKMAX);
1996         chan->bans.push_back(b);
1997         return 1;
1998 }
1999
2000 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2001 {
2002         if ((!user) || (!dest) || (!chan)) {
2003                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2004                 return 0;
2005         }
2006
2007         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2008         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2009         {
2010                 if (!strcasecmp(i->data,dest))
2011                 {
2012                         chan->bans.erase(i);
2013                         return 1;
2014                 }
2015         }
2016         return 0;
2017 }
2018
2019 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2020 {
2021         if (!parameters) {
2022                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2023                 return;
2024         }
2025
2026         char modelist[MAXBUF];
2027         char outlist[MAXBUF];
2028         char outstr[MAXBUF];
2029         char outpars[32][MAXBUF];
2030         int param = 2;
2031         int pc = 0;
2032         int ptr = 0;
2033         int mdir = 1;
2034         int r = 0;
2035         bool k_set = false, l_set = false;
2036
2037         if (pcnt < 2)
2038         {
2039                 return;
2040         }
2041
2042         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2043
2044         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2045                                         /* parameters[2] onwards are parameters for
2046                                          * modes that require them :) */
2047         strcpy(outlist,"+");
2048         mdir = 1;
2049
2050         log(DEBUG,"process_modes: modelist: %s",modelist);
2051
2052         for (ptr = 0; ptr < strlen(modelist); ptr++)
2053         {
2054                 r = 0;
2055
2056                 {
2057                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2058                         char modechar = modelist[ptr];
2059                         switch (modelist[ptr])
2060                         {
2061                                 case '-':
2062                                         if (mdir != 0)
2063                                         {
2064                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2065                                                 {
2066                                                         outlist[strlen(outlist)-1] = '-';
2067                                                 }
2068                                                 else
2069                                                 {
2070                                                         strcat(outlist,"-");
2071                                                 }
2072                                         }
2073                                         mdir = 0;
2074
2075                                 break;
2076
2077                                 case '+':
2078                                         if (mdir != 1)
2079                                         {
2080                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2081                                                 {
2082                                                         outlist[strlen(outlist)-1] = '+';
2083                                                 }
2084                                                 else
2085                                                 {
2086                                                         strcat(outlist,"+");
2087                                                 }
2088                                         }
2089                                         mdir = 1;
2090                                 break;
2091
2092                                 case 'o':
2093                                         log(DEBUG,"Ops");
2094                                         if ((param >= pcnt)) break;
2095                                         log(DEBUG,"Enough parameters left");
2096                                         if (mdir == 1)
2097                                         {
2098                                                 log(DEBUG,"calling give_ops");
2099                                                 r = give_ops(user,parameters[param++],chan,status);
2100                                         }
2101                                         else
2102                                         {
2103                                                 log(DEBUG,"calling take_ops");
2104                                                 r = take_ops(user,parameters[param++],chan,status);
2105                                         }
2106                                         if (r)
2107                                         {
2108                                                 strcat(outlist,"o");
2109                                                 strcpy(outpars[pc++],parameters[param-1]);
2110                                         }
2111                                 break;
2112
2113                                 case 'h':
2114                                         if ((param >= pcnt)) break;
2115                                         if (mdir == 1)
2116                                         {
2117                                                 r = give_hops(user,parameters[param++],chan,status);
2118                                         }
2119                                         else
2120                                         {
2121                                                 r = take_hops(user,parameters[param++],chan,status);
2122                                         }
2123                                         if (r)
2124                                         {
2125                                                 strcat(outlist,"h");
2126                                                 strcpy(outpars[pc++],parameters[param-1]);
2127                                         }
2128                                 break;
2129
2130
2131                                 case 'v':
2132                                         if ((param >= pcnt)) break;
2133                                         if (mdir == 1)
2134                                         {
2135                                                 r = give_voice(user,parameters[param++],chan,status);
2136                                         }
2137                                         else
2138                                         {
2139                                                 r = take_voice(user,parameters[param++],chan,status);
2140                                         }
2141                                         if (r)
2142                                         {
2143                                                 strcat(outlist,"v");
2144                                                 strcpy(outpars[pc++],parameters[param-1]);
2145                                         }
2146                                 break;
2147
2148                                 case 'b':
2149                                         if ((param >= pcnt)) break;
2150                                         if (mdir == 1)
2151                                         {
2152                                                 r = add_ban(user,parameters[param++],chan,status);
2153                                         }
2154                                         else
2155                                         {
2156                                                 r = take_ban(user,parameters[param++],chan,status);
2157                                         }
2158                                         if (r)
2159                                         {
2160                                                 strcat(outlist,"b");
2161                                                 strcpy(outpars[pc++],parameters[param-1]);
2162                                         }
2163                                 break;
2164
2165
2166                                 case 'k':
2167                                         if ((param >= pcnt))
2168                                                 break;
2169
2170                                         if (mdir == 1)
2171                                         {
2172                                                 if (k_set)
2173                                                         break;
2174
2175                                                 if (!strcmp(chan->key,""))
2176                                                 {
2177                                                         strcat(outlist,"k");
2178                                                         char key[MAXBUF];
2179                                                         strcpy(key,parameters[param++]);
2180                                                         if (strlen(key)>32) {
2181                                                                 key[31] = '\0';
2182                                                         }
2183                                                         strcpy(outpars[pc++],key);
2184                                                         strcpy(chan->key,key);
2185                                                         k_set = true;
2186                                                 }
2187                                         }
2188                                         else
2189                                         {
2190                                                 /* checks on -k are case sensitive and only accurate to the
2191                                                    first 32 characters */
2192                                                 char key[MAXBUF];
2193                                                 strcpy(key,parameters[param++]);
2194                                                 if (strlen(key)>32) {
2195                                                         key[31] = '\0';
2196                                                 }
2197                                                 /* only allow -k if correct key given */
2198                                                 if (!strcmp(chan->key,key))
2199                                                 {
2200                                                         strcat(outlist,"k");
2201                                                         strcpy(chan->key,"");
2202                                                         strcpy(outpars[pc++],key);
2203                                                 }
2204                                         }
2205                                 break;
2206
2207                                 case 'l':
2208                                         if (mdir == 0)
2209                                         {
2210                                                 if (chan->limit)
2211                                                 {
2212                                                         strcat(outlist,"l");
2213                                                         chan->limit = 0;
2214                                                 }
2215                                         }
2216
2217                                         if ((param >= pcnt)) break;
2218                                         if (mdir == 1)
2219                                         {
2220                                                 if (l_set)
2221                                                         break;
2222
2223                                                 bool invalid = false;
2224                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2225                                                 {
2226                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2227                                                         {
2228                                                                 invalid = true;
2229                                                         }
2230                                                 }
2231                                                 if (atoi(parameters[param]) < 1)
2232                                                 {
2233                                                         invalid = true;
2234                                                 }
2235
2236                                                 if (invalid)
2237                                                         break;
2238
2239                                                 chan->limit = atoi(parameters[param]);
2240                                                 if (chan->limit)
2241                                                 {
2242                                                         strcat(outlist,"l");
2243                                                         strcpy(outpars[pc++],parameters[param++]);
2244                                                         l_set = true;
2245                                                 }
2246                                         }
2247                                 break;
2248
2249                                 case 'i':
2250                                         if (chan->inviteonly != mdir)
2251                                         {
2252                                                 strcat(outlist,"i");
2253                                         }
2254                                         chan->inviteonly = mdir;
2255                                 break;
2256
2257                                 case 't':
2258                                         if (chan->topiclock != mdir)
2259                                         {
2260                                                 strcat(outlist,"t");
2261                                         }
2262                                         chan->topiclock = mdir;
2263                                 break;
2264
2265                                 case 'n':
2266                                         if (chan->noexternal != mdir)
2267                                         {
2268                                                 strcat(outlist,"n");
2269                                         }
2270                                         chan->noexternal = mdir;
2271                                 break;
2272
2273                                 case 'm':
2274                                         if (chan->moderated != mdir)
2275                                         {
2276                                                 strcat(outlist,"m");
2277                                         }
2278                                         chan->moderated = mdir;
2279                                 break;
2280
2281                                 case 's':
2282                                         if (chan->secret != mdir)
2283                                         {
2284                                                 strcat(outlist,"s");
2285                                                 if (chan->c_private)
2286                                                 {
2287                                                         chan->c_private = 0;
2288                                                         if (mdir)
2289                                                         {
2290                                                                 strcat(outlist,"-p+");
2291                                                         }
2292                                                         else
2293                                                         {
2294                                                                 strcat(outlist,"+p-");
2295                                                         }
2296                                                 }
2297                                         }
2298                                         chan->secret = mdir;
2299                                 break;
2300
2301                                 case 'p':
2302                                         if (chan->c_private != mdir)
2303                                         {
2304                                                 strcat(outlist,"p");
2305                                                 if (chan->secret)
2306                                                 {
2307                                                         chan->secret = 0;
2308                                                         if (mdir)
2309                                                         {
2310                                                                 strcat(outlist,"-s+");
2311                                                         }
2312                                                         else
2313                                                         {
2314                                                                 strcat(outlist,"+s-");
2315                                                         }
2316                                                 }
2317                                         }
2318                                         chan->c_private = mdir;
2319                                 break;
2320
2321                                 default:
2322                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2323                                         string_list p;
2324                                         p.clear();
2325                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2326                                         {
2327                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2328                                                 break;
2329                                         }
2330                                         if (ModeDefined(modechar,MT_CHANNEL))
2331                                         {
2332                                                 log(DEBUG,"A module has claimed this mode");
2333                                                 if (param<pcnt)
2334                                                 {
2335                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2336                                                         {
2337                                                                 p.push_back(parameters[param]);
2338                                                         }
2339                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2340                                                         {
2341                                                                 p.push_back(parameters[param]);
2342                                                         }
2343                                                 }
2344                                                 bool handled = false;
2345                                                 if (param>=pcnt)
2346                                                 {
2347                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2348                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2349                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2350                                                         {
2351                                                                 handled = true;
2352                                                                 param++;
2353                                                         }
2354                                                 }
2355                                                 for (int i = 0; i <= MODCOUNT; i++)
2356                                                 {
2357                                                         if (!handled)
2358                                                         {
2359                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2360                                                                 {
2361                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2362                                                                         char app[] = {modechar, 0};
2363                                                                         if (ptr>0)
2364                                                                         {
2365                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2366                                                                                 {
2367                                                                                         strcat(outlist, app);
2368                                                                                 }
2369                                                                                 else if (!strchr(outlist,modechar))
2370                                                                                 {
2371                                                                                         strcat(outlist, app);
2372                                                                                 }
2373                                                                         }
2374                                                                         chan->SetCustomMode(modechar,mdir);
2375                                                                         // include parameters in output if mode has them
2376                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2377                                                                         {
2378                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2379                                                                                 strcpy(outpars[pc++],parameters[param++]);
2380                                                                         }
2381                                                                         // break, because only one module can handle the mode.
2382                                                                         handled = true;
2383                                                                 }
2384                                                         }
2385                                                 }
2386                                         }
2387                                 break;
2388
2389                         }
2390                 }
2391         }
2392
2393         /* this ensures only the *valid* modes are sent out onto the network */
2394         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2395         {
2396                 outlist[strlen(outlist)-1] = '\0';
2397         }
2398         if (strcmp(outlist,""))
2399         {
2400                 strcpy(outstr,outlist);
2401                 for (ptr = 0; ptr < pc; ptr++)
2402                 {
2403                         strcat(outstr," ");
2404                         strcat(outstr,outpars[ptr]);
2405                 }
2406                 if (local)
2407                 {
2408                         log(DEBUG,"Local mode change");
2409                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2410                 }
2411                 else
2412                 {
2413                         if (servermode)
2414                         {
2415                                 if (!silent)
2416                                 {
2417                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2418                                         // M token for a usermode must go to all servers
2419                                         char buffer[MAXBUF];
2420                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
2421                                         NetSendToAll(buffer);
2422                                 }
2423
2424                         }
2425                         else
2426                         {
2427                                 if (!silent)
2428                                 {
2429                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2430                                         // M token for a usermode must go to all servers
2431                                         char buffer[MAXBUF];
2432                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2433                                         NetSendToAll(buffer);
2434                                 }
2435                         }
2436                 }
2437         }
2438 }
2439
2440 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2441
2442 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2443 {
2444         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2445         // RFC1459 specified modes
2446         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2447         {
2448                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2449                 return true;
2450         }
2451
2452         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2453         if ((strchr(sourcemodes,'o')) && (!adding))
2454         {
2455                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2456                 return true;
2457         }
2458         else if (umode == 'o')
2459         {
2460                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2461                 return false;
2462         }
2463
2464         // process any module-defined modes that need oper
2465         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2466         {
2467                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2468                 return true;
2469         }
2470         else
2471         if (ModeDefined(umode,MT_CLIENT))
2472         {
2473                 // process any module-defined modes that don't need oper
2474                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2475                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2476                 {
2477                         // no, this mode needs oper, and this user 'aint got what it takes!
2478                         return false;
2479                 }
2480                 return true;
2481         }
2482
2483         // anything else - return false.
2484         log(DEBUG,"umode %c not known by any ruleset",umode);
2485         return false;
2486 }
2487
2488 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2489 {
2490         userrec* s2;
2491         bool faked = false;
2492         if (!source)
2493         {
2494                 s2 = new userrec;
2495                 strncpy(s2->nick,ServerName,NICKMAX);
2496                 strcpy(s2->modes,"o");
2497                 s2->fd = -1;
2498                 source = s2;
2499                 faked = true;
2500         }
2501         string_list p;
2502         p.clear();
2503         if (ModeDefined(umode,MT_CLIENT))
2504         {
2505                 for (int i = 0; i <= MODCOUNT; i++)
2506                 {
2507                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2508                         {
2509                                 log(DEBUG,"Module claims umode %c",umode);
2510                                 return true;
2511                         }
2512                 }
2513                 log(DEBUG,"No module claims umode %c",umode);
2514                 if (faked)
2515                 {
2516                         delete s2;
2517                         source = NULL;
2518                 }
2519                 return false;
2520         }
2521         else
2522         {
2523                 if (faked)
2524                 {
2525                         delete s2;
2526                         source = NULL;
2527                 }
2528                 return false;
2529         }
2530 }
2531
2532 void handle_mode(char **parameters, int pcnt, userrec *user)
2533 {
2534         chanrec* Ptr;
2535         userrec* dest;
2536         int can_change,i;
2537         int direction = 1;
2538         char outpars[MAXBUF];
2539
2540         dest = Find(parameters[0]);
2541
2542         if (!user)
2543         {
2544                 return;
2545         }
2546
2547         if ((dest) && (pcnt == 1))
2548         {
2549                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2550                 return;
2551         }
2552
2553         if ((dest) && (pcnt > 1))
2554         {
2555                 char dmodes[MAXBUF];
2556                 strncpy(dmodes,dest->modes,MAXBUF);
2557                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2558
2559                 can_change = 0;
2560                 if (user != dest)
2561                 {
2562                         if (strchr(user->modes,'o'))
2563                         {
2564                                 can_change = 1;
2565                         }
2566                 }
2567                 else
2568                 {
2569                         can_change = 1;
2570                 }
2571                 if (!can_change)
2572                 {
2573                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2574                         return;
2575                 }
2576
2577                 strcpy(outpars,"+");
2578                 direction = 1;
2579
2580                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2581                         return;
2582
2583                 for (int i = 0; i < strlen(parameters[1]); i++)
2584                 {
2585                         if (parameters[1][i] == '+')
2586                         {
2587                                 if (direction != 1)
2588                                 {
2589                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2590                                         {
2591                                                 outpars[strlen(outpars)-1] = '+';
2592                                         }
2593                                         else
2594                                         {
2595                                                 strcat(outpars,"+");
2596                                         }
2597                                 }
2598                                 direction = 1;
2599                         }
2600                         else
2601                         if (parameters[1][i] == '-')
2602                         {
2603                                 if (direction != 0)
2604                                 {
2605                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2606                                         {
2607                                                 outpars[strlen(outpars)-1] = '-';
2608                                         }
2609                                         else
2610                                         {
2611                                                 strcat(outpars,"-");
2612                                         }
2613                                 }
2614                                 direction = 0;
2615                         }
2616                         else
2617                         {
2618                                 can_change = 0;
2619                                 if (strchr(user->modes,'o'))
2620                                 {
2621                                         can_change = 1;
2622                                 }
2623                                 else
2624                                 {
2625                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2626                                         {
2627                                                 can_change = 1;
2628                                         }
2629                                 }
2630                                 if (can_change)
2631                                 {
2632                                         if (direction == 1)
2633                                         {
2634                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2635                                                 {
2636                                                         char umode = parameters[1][i];
2637                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2638                                                         {
2639                                                                 dmodes[strlen(dmodes)+1]='\0';
2640                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2641                                                                 outpars[strlen(outpars)+1]='\0';
2642                                                                 outpars[strlen(outpars)] = parameters[1][i];
2643                                                         }
2644                                                 }
2645                                         }
2646                                         else
2647                                         {
2648                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2649                                                 {
2650                                                         char umode = parameters[1][i];
2651                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2652                                                         {
2653                                                                 int q = 0;
2654                                                                 char temp[MAXBUF];
2655                                                                 char moo[MAXBUF];
2656
2657                                                                 outpars[strlen(outpars)+1]='\0';
2658                                                                 outpars[strlen(outpars)] = parameters[1][i];
2659
2660                                                                 strcpy(temp,"");
2661                                                                 for (q = 0; q < strlen(dmodes); q++)
2662                                                                 {
2663                                                                         if (dmodes[q] != parameters[1][i])
2664                                                                         {
2665                                                                                 moo[0] = dmodes[q];
2666                                                                                 moo[1] = '\0';
2667                                                                                 strcat(temp,moo);
2668                                                                         }
2669                                                                 }
2670                                                                 strcpy(dmodes,temp);
2671                                                         }
2672                                                 }
2673                                         }
2674                                 }
2675                         }
2676                 }
2677                 if (strlen(outpars))
2678                 {
2679                         char b[MAXBUF];
2680                         strcpy(b,"");
2681                         int z = 0;
2682                         int i = 0;
2683                         while (i < strlen (outpars))
2684                         {
2685                                 b[z++] = outpars[i++];
2686                                 b[z] = '\0';
2687                                 if (i<strlen(outpars)-1)
2688                                 {
2689                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2690                                         {
2691                                                 // someones playing silly buggers and trying
2692                                                 // to put a +- or -+ into the line...
2693                                                 i++;
2694                                         }
2695                                 }
2696                                 if (i == strlen(outpars)-1)
2697                                 {
2698                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2699                                         {
2700                                                 i++;
2701                                         }
2702                                 }
2703                         }
2704
2705                         z = strlen(b)-1;
2706                         if ((b[z] == '-') || (b[z] == '+'))
2707                                 b[z] == '\0';
2708
2709                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2710                                 return;
2711
2712                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2713
2714                         // M token for a usermode must go to all servers
2715                         char buffer[MAXBUF];
2716                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2717                         NetSendToAll(buffer);
2718
2719                         if (strlen(dmodes)>MAXMODES)
2720                         {
2721                                 dmodes[MAXMODES-1] = '\0';
2722                         }
2723                         log(DEBUG,"Stripped mode line");
2724                         log(DEBUG,"Line dest is now %s",dmodes);
2725                         strncpy(dest->modes,dmodes,MAXMODES);
2726
2727                 }
2728
2729                 return;
2730         }
2731
2732         Ptr = FindChan(parameters[0]);
2733         if (Ptr)
2734         {
2735                 if (pcnt == 1)
2736                 {
2737                         /* just /modes #channel */
2738                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2739                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2740                         return;
2741                 }
2742                 else
2743                 if (pcnt == 2)
2744                 {
2745                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2746                         {
2747
2748                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2749                                 {
2750                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2751                                 }
2752                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2753                                 return;
2754                         }
2755                 }
2756
2757                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2758                 {
2759                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
2760                         return;
2761                 }
2762
2763                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
2764         }
2765         else
2766         {
2767                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
2768         }
2769 }
2770
2771
2772
2773
2774 void server_mode(char **parameters, int pcnt, userrec *user)
2775 {
2776         chanrec* Ptr;
2777         userrec* dest;
2778         int can_change,i;
2779         int direction = 1;
2780         char outpars[MAXBUF];
2781
2782         dest = Find(parameters[0]);
2783
2784         // fix: ChroNiCk found this - we cant use this as debug if its null!
2785         if (dest)
2786         {
2787                 log(DEBUG,"server_mode on %s",dest->nick);
2788         }
2789
2790         if ((dest) && (pcnt > 1))
2791         {
2792                 log(DEBUG,"params > 1");
2793
2794                 char dmodes[MAXBUF];
2795                 strncpy(dmodes,dest->modes,MAXBUF);
2796
2797                 strcpy(outpars,"+");
2798                 direction = 1;
2799
2800                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2801                         return;
2802
2803                 for (int i = 0; i < strlen(parameters[1]); i++)
2804                 {
2805                         if (parameters[1][i] == '+')
2806                         {
2807                                 if (direction != 1)
2808                                 {
2809                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2810                                         {
2811                                                 outpars[strlen(outpars)-1] = '+';
2812                                         }
2813                                         else
2814                                         {
2815                                                 strcat(outpars,"+");
2816                                         }
2817                                 }
2818                                 direction = 1;
2819                         }
2820                         else
2821                         if (parameters[1][i] == '-')
2822                         {
2823                                 if (direction != 0)
2824                                 {
2825                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2826                                         {
2827                                                 outpars[strlen(outpars)-1] = '-';
2828                                         }
2829                                         else
2830                                         {
2831                                                 strcat(outpars,"-");
2832                                         }
2833                                 }
2834                                 direction = 0;
2835                         }
2836                         else
2837                         {
2838                                 log(DEBUG,"begin mode processing entry");
2839                                 can_change = 1;
2840                                 if (can_change)
2841                                 {
2842                                         if (direction == 1)
2843                                         {
2844                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
2845                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2846                                                 {
2847                                                         char umode = parameters[1][i];
2848                                                         log(DEBUG,"umode %c is an allowed umode",umode);
2849                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2850                                                         {
2851                                                                 dmodes[strlen(dmodes)+1]='\0';
2852                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2853                                                                 outpars[strlen(outpars)+1]='\0';
2854                                                                 outpars[strlen(outpars)] = parameters[1][i];
2855                                                         }
2856                                                 }
2857                                         }
2858                                         else
2859                                         {
2860                                                 // can only remove a mode they already have
2861                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
2862                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2863                                                 {
2864                                                         char umode = parameters[1][i];
2865                                                         log(DEBUG,"umode %c is an allowed umode",umode);
2866                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2867                                                         {
2868                                                                 int q = 0;
2869                                                                 char temp[MAXBUF];
2870                                                                 char moo[MAXBUF];
2871
2872                                                                 outpars[strlen(outpars)+1]='\0';
2873                                                                 outpars[strlen(outpars)] = parameters[1][i];
2874
2875                                                                 strcpy(temp,"");
2876                                                                 for (q = 0; q < strlen(dmodes); q++)
2877                                                                 {
2878                                                                         if (dmodes[q] != parameters[1][i])
2879                                                                         {
2880                                                                                 moo[0] = dmodes[q];
2881                                                                                 moo[1] = '\0';
2882                                                                                 strcat(temp,moo);
2883                                                                         }
2884                                                                 }
2885                                                                 strcpy(dmodes,temp);
2886                                                         }
2887                                                 }
2888                                         }
2889                                 }
2890                         }
2891                 }
2892                 if (strlen(outpars))
2893                 {
2894                         char b[MAXBUF];
2895                         strcpy(b,"");
2896                         int z = 0;
2897                         int i = 0;
2898                         while (i < strlen (outpars))
2899                         {
2900                                 b[z++] = outpars[i++];
2901                                 b[z] = '\0';
2902                                 if (i<strlen(outpars)-1)
2903                                 {
2904                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2905                                         {
2906                                                 // someones playing silly buggers and trying
2907                                                 // to put a +- or -+ into the line...
2908                                                 i++;
2909                                         }
2910                                 }
2911                                 if (i == strlen(outpars)-1)
2912                                 {
2913                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2914                                         {
2915                                                 i++;
2916                                         }
2917                                 }
2918                         }
2919
2920                         z = strlen(b)-1;
2921                         if ((b[z] == '-') || (b[z] == '+'))
2922                                 b[z] == '\0';
2923
2924                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2925                                 return;
2926
2927                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2928
2929                         // M token for a usermode must go to all servers
2930                         char buffer[MAXBUF];
2931                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2932                         NetSendToAll(buffer);
2933
2934                         if (strlen(dmodes)>MAXMODES)
2935                         {
2936                                 dmodes[MAXMODES-1] = '\0';
2937                         }
2938                         log(DEBUG,"Stripped mode line");
2939                         log(DEBUG,"Line dest is now %s",dmodes);
2940                         strncpy(dest->modes,dmodes,MAXMODES);
2941
2942                 }
2943
2944                 return;
2945         }
2946
2947         Ptr = FindChan(parameters[0]);
2948         if (Ptr)
2949         {
2950                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
2951         }
2952         else
2953         {
2954                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
2955         }
2956 }
2957
2958
2959
2960 void merge_mode(char **parameters, int pcnt)
2961 {
2962         chanrec* Ptr;
2963         userrec* dest;
2964         int can_change,i;
2965         int direction = 1;
2966         char outpars[MAXBUF];
2967
2968         dest = Find(parameters[0]);
2969
2970         // fix: ChroNiCk found this - we cant use this as debug if its null!
2971         if (dest)
2972         {
2973                 log(DEBUG,"merge_mode on %s",dest->nick);
2974         }
2975
2976         if ((dest) && (pcnt > 1))
2977         {
2978                 log(DEBUG,"params > 1");
2979
2980                 char dmodes[MAXBUF];
2981                 strncpy(dmodes,dest->modes,MAXBUF);
2982
2983                 strcpy(outpars,"+");
2984                 direction = 1;
2985
2986                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2987                         return;
2988
2989                 for (int i = 0; i < strlen(parameters[1]); i++)
2990                 {
2991                         if (parameters[1][i] == '+')
2992                         {
2993                                 if (direction != 1)
2994                                 {
2995                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2996                                         {
2997                                                 outpars[strlen(outpars)-1] = '+';
2998                                         }
2999                                         else
3000                                         {
3001                                                 strcat(outpars,"+");
3002                                         }
3003                                 }
3004                                 direction = 1;
3005                         }
3006                         else
3007                         if (parameters[1][i] == '-')
3008                         {
3009                                 if (direction != 0)
3010                                 {
3011                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3012                                         {
3013                                                 outpars[strlen(outpars)-1] = '-';
3014                                         }
3015                                         else
3016                                         {
3017                                                 strcat(outpars,"-");
3018                                         }
3019                                 }
3020                                 direction = 0;
3021                         }
3022                         else
3023                         {
3024                                 log(DEBUG,"begin mode processing entry");
3025                                 can_change = 1;
3026                                 if (can_change)
3027                                 {
3028                                         if (direction == 1)
3029                                         {
3030                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3031                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3032                                                 {
3033                                                         char umode = parameters[1][i];
3034                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3035                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3036                                                         {
3037                                                                 dmodes[strlen(dmodes)+1]='\0';
3038                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3039                                                                 outpars[strlen(outpars)+1]='\0';
3040                                                                 outpars[strlen(outpars)] = parameters[1][i];
3041                                                         }
3042                                                 }
3043                                         }
3044                                         else
3045                                         {
3046                                                 // can only remove a mode they already have
3047                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3048                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3049                                                 {
3050                                                         char umode = parameters[1][i];
3051                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3052                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3053                                                         {
3054                                                                 int q = 0;
3055                                                                 char temp[MAXBUF];
3056                                                                 char moo[MAXBUF];
3057
3058                                                                 outpars[strlen(outpars)+1]='\0';
3059                                                                 outpars[strlen(outpars)] = parameters[1][i];
3060
3061                                                                 strcpy(temp,"");
3062                                                                 for (q = 0; q < strlen(dmodes); q++)
3063                                                                 {
3064                                                                         if (dmodes[q] != parameters[1][i])
3065                                                                         {
3066                                                                                 moo[0] = dmodes[q];
3067                                                                                 moo[1] = '\0';
3068                                                                                 strcat(temp,moo);
3069                                                                         }
3070                                                                 }
3071                                                                 strcpy(dmodes,temp);
3072                                                         }
3073                                                 }
3074                                         }
3075                                 }
3076                         }
3077                 }
3078                 if (strlen(outpars))
3079                 {
3080                         char b[MAXBUF];
3081                         strcpy(b,"");
3082                         int z = 0;
3083                         int i = 0;
3084                         while (i < strlen (outpars))
3085                         {
3086                                 b[z++] = outpars[i++];
3087                                 b[z] = '\0';
3088                                 if (i<strlen(outpars)-1)
3089                                 {
3090                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3091                                         {
3092                                                 // someones playing silly buggers and trying
3093                                                 // to put a +- or -+ into the line...
3094                                                 i++;
3095                                         }
3096                                 }
3097                                 if (i == strlen(outpars)-1)
3098                                 {
3099                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3100                                         {
3101                                                 i++;
3102                                         }
3103                                 }
3104                         }
3105
3106                         z = strlen(b)-1;
3107                         if ((b[z] == '-') || (b[z] == '+'))
3108                                 b[z] == '\0';
3109
3110                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3111                                 return;
3112
3113                         if (strlen(dmodes)>MAXMODES)
3114                         {
3115                                 dmodes[MAXMODES-1] = '\0';
3116                         }
3117                         log(DEBUG,"Stripped mode line");
3118                         log(DEBUG,"Line dest is now %s",dmodes);
3119                         strncpy(dest->modes,dmodes,MAXMODES);
3120
3121                 }
3122
3123                 return;
3124         }
3125
3126         Ptr = FindChan(parameters[0]);
3127         if (Ptr)
3128         {
3129                 userrec s2;
3130                 strncpy(s2.nick,ServerName,NICKMAX);
3131                 strcpy(s2.modes,"o");
3132                 s2.fd = -1;
3133                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3134         }
3135 }
3136
3137
3138 void merge_mode2(char **parameters, int pcnt, userrec* user)
3139 {
3140         chanrec* Ptr;
3141         userrec* dest;
3142         int can_change,i;
3143         int direction = 1;
3144         char outpars[MAXBUF];
3145
3146         dest = Find(parameters[0]);
3147
3148         // fix: ChroNiCk found this - we cant use this as debug if its null!
3149         if (dest)
3150         {
3151                 log(DEBUG,"merge_mode on %s",dest->nick);
3152         }
3153
3154         if ((dest) && (pcnt > 1))
3155         {
3156                 log(DEBUG,"params > 1");
3157
3158                 char dmodes[MAXBUF];
3159                 strncpy(dmodes,dest->modes,MAXBUF);
3160
3161                 strcpy(outpars,"+");
3162                 direction = 1;
3163
3164                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3165                         return;
3166
3167                 for (int i = 0; i < strlen(parameters[1]); i++)
3168                 {
3169                         if (parameters[1][i] == '+')
3170                         {
3171                                 if (direction != 1)
3172                                 {
3173                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3174                                         {
3175                                                 outpars[strlen(outpars)-1] = '+';
3176                                         }
3177                                         else
3178                                         {
3179                                                 strcat(outpars,"+");
3180                                         }
3181                                 }
3182                                 direction = 1;
3183                         }
3184                         else
3185                         if (parameters[1][i] == '-')
3186                         {
3187                                 if (direction != 0)
3188                                 {
3189                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3190                                         {
3191                                                 outpars[strlen(outpars)-1] = '-';
3192                                         }
3193                                         else
3194                                         {
3195                                                 strcat(outpars,"-");
3196                                         }
3197                                 }
3198                                 direction = 0;
3199                         }
3200                         else
3201                         {
3202                                 log(DEBUG,"begin mode processing entry");
3203                                 can_change = 1;
3204                                 if (can_change)
3205                                 {
3206                                         if (direction == 1)
3207                                         {
3208                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3209                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3210                                                 {
3211                                                         char umode = parameters[1][i];
3212                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3213                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3214                                                         {
3215                                                                 dmodes[strlen(dmodes)+1]='\0';
3216                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3217                                                                 outpars[strlen(outpars)+1]='\0';
3218                                                                 outpars[strlen(outpars)] = parameters[1][i];
3219                                                         }
3220                                                 }
3221                                         }
3222                                         else
3223                                         {
3224                                                 // can only remove a mode they already have
3225                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3226                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3227                                                 {
3228                                                         char umode = parameters[1][i];
3229                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3230                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3231                                                         {
3232                                                                 int q = 0;
3233                                                                 char temp[MAXBUF];
3234                                                                 char moo[MAXBUF];
3235
3236                                                                 outpars[strlen(outpars)+1]='\0';
3237                                                                 outpars[strlen(outpars)] = parameters[1][i];
3238
3239                                                                 strcpy(temp,"");
3240                                                                 for (q = 0; q < strlen(dmodes); q++)
3241                                                                 {
3242                                                                         if (dmodes[q] != parameters[1][i])
3243                                                                         {
3244                                                                                 moo[0] = dmodes[q];
3245                                                                                 moo[1] = '\0';
3246                                                                                 strcat(temp,moo);
3247                                                                         }
3248                                                                 }
3249                                                                 strcpy(dmodes,temp);
3250                                                         }
3251                                                 }
3252                                         }
3253                                 }
3254                         }
3255                 }
3256                 if (strlen(outpars))
3257                 {
3258                         char b[MAXBUF];
3259                         strcpy(b,"");
3260                         int z = 0;
3261                         int i = 0;
3262                         while (i < strlen (outpars))
3263                         {
3264                                 b[z++] = outpars[i++];
3265                                 b[z] = '\0';
3266                                 if (i<strlen(outpars)-1)
3267                                 {
3268                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3269                                         {
3270                                                 // someones playing silly buggers and trying
3271                                                 // to put a +- or -+ into the line...
3272                                                 i++;
3273                                         }
3274                                 }
3275                                 if (i == strlen(outpars)-1)
3276                                 {
3277                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3278                                         {
3279                                                 i++;
3280                                         }
3281                                 }
3282                         }
3283
3284                         z = strlen(b)-1;
3285                         if ((b[z] == '-') || (b[z] == '+'))
3286                                 b[z] == '\0';
3287
3288                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3289                                 return;
3290
3291                         WriteTo(user,dest,"MODE :%s",b);
3292
3293                         if (strlen(dmodes)>MAXMODES)
3294                         {
3295                                 dmodes[MAXMODES-1] = '\0';
3296                         }
3297                         log(DEBUG,"Stripped mode line");
3298                         log(DEBUG,"Line dest is now %s",dmodes);
3299                         strncpy(dest->modes,dmodes,MAXMODES);
3300
3301                 }
3302
3303                 return;
3304         }
3305
3306         Ptr = FindChan(parameters[0]);
3307         if (Ptr)
3308         {
3309                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3310                 {
3311                         return;
3312                 }
3313
3314                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3315         }
3316 }
3317
3318
3319
3320 /* This function pokes and hacks at a parameter list like the following:
3321  *
3322  * PART #winbot, #darkgalaxy :m00!
3323  *
3324  * to turn it into a series of individual calls like this:
3325  *
3326  * PART #winbot :m00!
3327  * PART #darkgalaxy :m00!
3328  *
3329  * The seperate calls are sent to a callback function provided by the caller
3330  * (the caller will usually call itself recursively). The callback function
3331  * must be a command handler. Calling this function on a line with no list causes
3332  * no action to be taken. You must provide a starting and ending parameter number
3333  * where the range of the list can be found, useful if you have a terminating
3334  * parameter as above which is actually not part of the list, or parameters
3335  * before the actual list as well. This code is used by many functions which
3336  * can function as "one to list" (see the RFC) */
3337
3338 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3339 {
3340         char plist[MAXBUF];
3341         char *param;
3342         char *pars[32];
3343         char blog[32][MAXBUF];
3344         char blog2[32][MAXBUF];
3345         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3346         char keystr[MAXBUF];
3347         char moo[MAXBUF];
3348
3349         for (int i = 0; i <32; i++)
3350                 strcpy(blog[i],"");
3351
3352         for (int i = 0; i <32; i++)
3353                 strcpy(blog2[i],"");
3354
3355         strcpy(moo,"");
3356         for (int i = 0; i <10; i++)
3357         {
3358                 if (!parameters[i])
3359                 {
3360                         parameters[i] = moo;
3361                 }
3362         }
3363         if (joins)
3364         {
3365                 if (pcnt > 1) /* we have a key to copy */
3366                 {
3367                         strcpy(keystr,parameters[1]);
3368                 }
3369         }
3370
3371         if (!parameters[start])
3372         {
3373                 return 0;
3374         }
3375         if (!strchr(parameters[start],','))
3376         {
3377                 return 0;
3378         }
3379         strcpy(plist,"");
3380         for (int i = start; i <= end; i++)
3381         {
3382                 if (parameters[i])
3383                 {
3384                         strcat(plist,parameters[i]);
3385                 }
3386         }
3387
3388         j = 0;
3389         param = plist;
3390
3391         t = strlen(plist);
3392         for (int i = 0; i < t; i++)
3393         {
3394                 if (plist[i] == ',')
3395                 {
3396                         plist[i] = '\0';
3397                         strcpy(blog[j++],param);
3398                         param = plist+i+1;
3399                         if (j>20)
3400                         {
3401                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3402                                 return 1;
3403                         }
3404                 }
3405         }
3406         strcpy(blog[j++],param);
3407         total = j;
3408
3409         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3410         {
3411                 strcat(keystr,",");
3412         }
3413
3414         if ((joins) && (keystr))
3415         {
3416                 if (strchr(keystr,','))
3417                 {
3418                         j = 0;
3419                         param = keystr;
3420                         t2 = strlen(keystr);
3421                         for (int i = 0; i < t2; i++)
3422                         {
3423                                 if (keystr[i] == ',')
3424                                 {
3425                                         keystr[i] = '\0';
3426                                         strcpy(blog2[j++],param);
3427                                         param = keystr+i+1;
3428                                 }
3429                         }
3430                         strcpy(blog2[j++],param);
3431                         total2 = j;
3432                 }
3433         }
3434
3435         for (j = 0; j < total; j++)
3436         {
3437                 if (blog[j])
3438                 {
3439                         pars[0] = blog[j];
3440                 }
3441                 for (q = end; q < pcnt-1; q++)
3442                 {
3443                         if (parameters[q+1])
3444                         {
3445                                 pars[q-end+1] = parameters[q+1];
3446                         }
3447                 }
3448                 if ((joins) && (parameters[1]))
3449                 {
3450                         if (pcnt > 1)
3451                         {
3452                                 pars[1] = blog2[j];
3453                         }
3454                         else
3455                         {
3456                                 pars[1] = NULL;
3457                         }
3458                 }
3459                 /* repeatedly call the function with the hacked parameter list */
3460                 if ((joins) && (pcnt > 1))
3461                 {
3462                         if (pars[1])
3463                         {
3464                                 // pars[1] already set up and containing key from blog2[j]
3465                                 fn(pars,2,u);
3466                         }
3467                         else
3468                         {
3469                                 pars[1] = parameters[1];
3470                                 fn(pars,2,u);
3471                         }
3472                 }
3473                 else
3474                 {
3475                         fn(pars,pcnt-(end-start),u);
3476                 }
3477         }
3478
3479         return 1;
3480 }
3481
3482
3483 void handle_join(char **parameters, int pcnt, userrec *user)
3484 {
3485         chanrec* Ptr;
3486         int i = 0;
3487
3488         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3489                 return;
3490         if (parameters[0][0] == '#')
3491         {
3492                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3493         }
3494 }
3495
3496
3497 void handle_part(char **parameters, int pcnt, userrec *user)
3498 {
3499         chanrec* Ptr;
3500
3501         if (pcnt > 1)
3502         {
3503                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3504                         return;
3505                 del_channel(user,parameters[0],parameters[1],false);
3506         }
3507         else
3508         {
3509                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3510                         return;
3511                 del_channel(user,parameters[0],NULL,false);
3512         }
3513 }
3514
3515 void handle_kick(char **parameters, int pcnt, userrec *user)
3516 {
3517         chanrec* Ptr = FindChan(parameters[0]);
3518         userrec* u   = Find(parameters[1]);
3519
3520         if ((!u) || (!Ptr))
3521         {
3522                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3523                 return;
3524         }
3525
3526         if (!has_channel(u,Ptr))
3527         {
3528                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3529                 return;
3530         }
3531
3532         char reason[MAXBUF];
3533
3534         if (pcnt > 2)
3535         {
3536                 strncpy(reason,parameters[2],MAXBUF);
3537                 if (strlen(reason)>MAXKICK)
3538                 {
3539                         reason[MAXKICK-1] = '\0';
3540                 }
3541
3542                 kick_channel(user,u,Ptr,reason);
3543         }
3544         else
3545         {
3546                 strcpy(reason,user->nick);
3547                 kick_channel(user,u,Ptr,reason);
3548         }
3549
3550         // this must be propogated so that channel membership is kept in step network-wide
3551
3552         char buffer[MAXBUF];
3553         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3554         NetSendToAll(buffer);
3555 }
3556
3557
3558 void handle_die(char **parameters, int pcnt, userrec *user)
3559 {
3560         log(DEBUG,"die: %s",user->nick);
3561         if (!strcmp(parameters[0],diepass))
3562         {
3563                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3564                 sleep(DieDelay);
3565                 Exit(ERROR);
3566         }
3567         else
3568         {
3569                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3570         }
3571 }
3572
3573 void handle_restart(char **parameters, int pcnt, userrec *user)
3574 {
3575         log(DEBUG,"restart: %s",user->nick);
3576         if (!strcmp(parameters[0],restartpass))
3577         {
3578                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3579                 sleep(DieDelay);
3580                 Exit(ERROR);
3581                 /* Will finish this later when i can be arsed :) */
3582         }
3583         else
3584         {
3585                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3586         }
3587 }
3588
3589
3590 void kill_link(userrec *user,const char* r)
3591 {
3592         user_hash::iterator iter = clientlist.find(user->nick);
3593
3594         char reason[MAXBUF];
3595
3596         strncpy(reason,r,MAXBUF);
3597
3598         if (strlen(reason)>MAXQUIT)
3599         {
3600                 reason[MAXQUIT-1] = '\0';
3601         }
3602
3603         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3604         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3605         log(DEBUG,"closing fd %d",user->fd);
3606
3607         /* bugfix, cant close() a nonblocking socket (sux!) */
3608         if (user->registered == 7) {
3609                 FOREACH_MOD OnUserQuit(user);
3610                 WriteCommonExcept(user,"QUIT :%s",reason);
3611
3612                 // Q token must go to ALL servers!!!
3613                 char buffer[MAXBUF];
3614                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3615                 NetSendToAll(buffer);
3616         }
3617
3618         /* push the socket on a stack of sockets due to be closed at the next opportunity
3619          * 'Client exited' is an exception to this as it means the client side has already
3620          * closed the socket, we don't need to do it.
3621          */
3622         fd_reap.push_back(user->fd);
3623
3624         bool do_purge = false;
3625
3626         if (user->registered == 7) {
3627                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3628                 AddWhoWas(user);
3629         }
3630
3631         if (iter != clientlist.end())
3632         {
3633                 log(DEBUG,"deleting user hash value %d",iter->second);
3634                 if ((iter->second) && (user->registered == 7)) {
3635                         delete iter->second;
3636                 }
3637                 clientlist.erase(iter);
3638         }
3639
3640         if (user->registered == 7) {
3641                 purge_empty_chans();
3642         }
3643 }
3644
3645
3646 void handle_kill(char **parameters, int pcnt, userrec *user)
3647 {
3648         userrec *u = Find(parameters[0]);
3649         char killreason[MAXBUF];
3650
3651         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3652         if (u)
3653         {
3654                 if (strcmp(ServerName,u->server))
3655                 {
3656                         // remote kill
3657                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3658                         sprintf(killreason,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
3659                         WriteCommonExcept(u,"QUIT :%s",killreason);
3660                         // K token must go to ALL servers!!!
3661                         char buffer[MAXBUF];
3662                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
3663                         NetSendToAll(buffer);
3664
3665                         user_hash::iterator iter = clientlist.find(u->nick);
3666                         if (iter != clientlist.end())
3667                         {
3668                                 log(DEBUG,"deleting user hash value %d",iter->second);
3669                                 if ((iter->second) && (user->registered == 7)) {
3670                                         delete iter->second;
3671                                         }
3672                         clientlist.erase(iter);
3673                         }
3674                         purge_empty_chans();
3675                 }
3676                 else
3677                 {
3678                         // local kill
3679                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3680                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3681                         sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3682                         kill_link(u,killreason);
3683                 }
3684         }
3685         else
3686         {
3687                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3688         }
3689 }
3690
3691 void handle_summon(char **parameters, int pcnt, userrec *user)
3692 {
3693         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3694 }
3695
3696 void handle_users(char **parameters, int pcnt, userrec *user)
3697 {
3698         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3699 }
3700
3701
3702 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3703
3704 char* Passwd(userrec *user)
3705 {
3706         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3707         {
3708                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3709                 {
3710                         return i->pass;
3711                 }
3712         }
3713         return "";
3714 }
3715
3716 bool IsDenied(userrec *user)
3717 {
3718         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3719         {
3720                 if (match(user->host,i->host) && (i->type == CC_DENY))
3721                 {
3722                         return true;
3723                 }
3724         }
3725         return false;
3726 }
3727
3728
3729
3730 void handle_pass(char **parameters, int pcnt, userrec *user)
3731 {
3732         // Check to make sure they havnt registered -- Fix by FCS
3733         if (user->registered == 7)
3734         {
3735                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
3736                 return;
3737         }
3738         if (!strcasecmp(parameters[0],Passwd(user)))
3739         {
3740                 user->haspassed = true;
3741         }
3742 }
3743
3744 void handle_invite(char **parameters, int pcnt, userrec *user)
3745 {
3746         userrec* u = Find(parameters[0]);
3747         chanrec* c = FindChan(parameters[1]);
3748
3749         if ((!c) || (!u))
3750         {
3751                 if (!c)
3752                 {
3753                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3754                 }
3755                 else
3756                 {
3757                         if (c->inviteonly)
3758                         {
3759                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
3760                         }
3761                 }
3762
3763                 return;
3764         }
3765
3766         if (c->inviteonly)
3767         {
3768                 if (cstatus(user,c) < STATUS_HOP)
3769                 {
3770                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
3771                         return;
3772                 }
3773         }
3774         if (has_channel(u,c))
3775         {
3776                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
3777                 return;
3778         }
3779         if (!has_channel(user,c))
3780         {
3781                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
3782                 return;
3783         }
3784         u->InviteTo(c->name);
3785         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
3786         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
3787
3788         // i token must go to ALL servers!!!
3789         char buffer[MAXBUF];
3790         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
3791         NetSendToAll(buffer);
3792 }
3793
3794 void handle_topic(char **parameters, int pcnt, userrec *user)
3795 {
3796         chanrec* Ptr;
3797
3798         if (pcnt == 1)
3799         {
3800                 if (strlen(parameters[0]) <= CHANMAX)
3801                 {
3802                         Ptr = FindChan(parameters[0]);
3803                         if (Ptr)
3804                         {
3805                                 if (Ptr->topicset)
3806                                 {
3807                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
3808                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
3809                                 }
3810                                 else
3811                                 {
3812                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
3813                                 }
3814                         }
3815                         else
3816                         {
3817                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3818                         }
3819                 }
3820                 return;
3821         }
3822         else if (pcnt>1)
3823         {
3824                 if (strlen(parameters[0]) <= CHANMAX)
3825                 {
3826                         Ptr = FindChan(parameters[0]);
3827                         if (Ptr)
3828                         {
3829                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
3830                                 {
3831                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
3832                                         return;
3833                                 }
3834
3835                                 char topic[MAXBUF];
3836                                 strncpy(topic,parameters[1],MAXBUF);
3837                                 if (strlen(topic)>MAXTOPIC)
3838                                 {
3839                                         topic[MAXTOPIC-1] = '\0';
3840                                 }
3841
3842                                 strcpy(Ptr->topic,topic);
3843                                 strcpy(Ptr->setby,user->nick);
3844                                 Ptr->topicset = time(NULL);
3845                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
3846
3847                                 // t token must go to ALL servers!!!
3848                                 char buffer[MAXBUF];
3849                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
3850                                 NetSendToAll(buffer);
3851                         }
3852                         else
3853                         {
3854                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3855                         }
3856                 }
3857         }
3858 }
3859
3860 /* sends out an error notice to all connected clients (not to be used
3861  * lightly!) */
3862
3863 void send_error(char *s)
3864 {
3865         log(DEBUG,"send_error: %s",s);
3866         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3867         {
3868                 if (isnick(i->second->nick))
3869                 {
3870                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
3871                 }
3872                 else
3873                 {
3874                         // fix - unregistered connections receive ERROR, not NOTICE
3875                         Write(i->second->fd,"ERROR :%s",s);
3876                 }
3877         }
3878 }
3879
3880 void Error(int status)
3881 {
3882         signal (SIGALRM, SIG_IGN);
3883         signal (SIGPIPE, SIG_IGN);
3884         signal (SIGTERM, SIG_IGN);
3885         signal (SIGABRT, SIG_IGN);
3886         signal (SIGSEGV, SIG_IGN);
3887         signal (SIGURG, SIG_IGN);
3888         signal (SIGKILL, SIG_IGN);
3889         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
3890         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
3891         exit(status);
3892 }
3893
3894
3895 int main(int argc, char *argv[])
3896 {
3897         Start();
3898         srand(time(NULL));
3899         log(DEBUG,"*** InspIRCd starting up!");
3900         if (!FileExists(CONFIG_FILE))
3901         {
3902                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
3903                 log(DEBUG,"main: no config");
3904                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
3905                 Exit(ERROR);
3906         }
3907         if (argc > 1) {
3908                 if (!strcmp(argv[1],"-nofork")) {
3909                         nofork = true;
3910                 }
3911         }
3912         if (InspIRCd() == ERROR)
3913         {
3914                 log(DEBUG,"main: daemon function bailed");
3915                 printf("ERROR: could not initialise. Shutting down.\n");
3916                 Exit(ERROR);
3917         }
3918         Exit(TRUE);
3919         return 0;
3920 }
3921
3922 template<typename T> inline string ConvToStr(const T &in)
3923 {
3924         stringstream tmp;
3925         if (!(tmp << in)) return string();
3926         return tmp.str();
3927 }
3928
3929 /* re-allocates a nick in the user_hash after they change nicknames,
3930  * returns a pointer to the new user as it may have moved */
3931
3932 userrec* ReHashNick(char* Old, char* New)
3933 {
3934         user_hash::iterator newnick;
3935         user_hash::iterator oldnick = clientlist.find(Old);
3936
3937         log(DEBUG,"ReHashNick: %s %s",Old,New);
3938
3939         if (!strcasecmp(Old,New))
3940         {
3941                 log(DEBUG,"old nick is new nick, skipping");
3942                 return oldnick->second;
3943         }
3944
3945         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
3946
3947         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
3948
3949         clientlist[New] = new userrec();
3950         clientlist[New] = oldnick->second;
3951         /*delete oldnick->second; */
3952         clientlist.erase(oldnick);
3953
3954         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
3955
3956         return clientlist[New];
3957 }
3958
3959 /* adds or updates an entry in the whowas list */
3960 void AddWhoWas(userrec* u)
3961 {
3962         user_hash::iterator iter = whowas.find(u->nick);
3963         userrec *a = new userrec();
3964         strcpy(a->nick,u->nick);
3965         strcpy(a->ident,u->ident);
3966         strcpy(a->dhost,u->dhost);
3967         strcpy(a->host,u->host);
3968         strcpy(a->fullname,u->fullname);
3969         strcpy(a->server,u->server);
3970         a->signon = u->signon;
3971
3972         /* MAX_WHOWAS:   max number of /WHOWAS items
3973          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
3974          *               can be replaced by a newer one
3975          */
3976
3977         if (iter == whowas.end())
3978         {
3979                 if (whowas.size() == WHOWAS_MAX)
3980                 {
3981                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
3982                         {
3983                                 // 3600 seconds in an hour ;)
3984                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
3985                                 {
3986                                         delete i->second;
3987                                         i->second = a;
3988                                         log(DEBUG,"added WHOWAS entry, purged an old record");
3989                                         return;
3990                                 }
3991                         }
3992                 }
3993                 else
3994                 {
3995                         log(DEBUG,"added fresh WHOWAS entry");
3996                         whowas[a->nick] = a;
3997                 }
3998         }
3999         else
4000         {
4001                 log(DEBUG,"updated WHOWAS entry");
4002                 delete iter->second;
4003                 iter->second = a;
4004         }
4005 }
4006
4007
4008 /* add a client connection to the sockets list */
4009 void AddClient(int socket, char* host, int port, bool iscached)
4010 {
4011         int i;
4012         int blocking = 1;
4013         char resolved[MAXBUF];
4014         string tempnick;
4015         char tn2[MAXBUF];
4016         user_hash::iterator iter;
4017
4018         tempnick = ConvToStr(socket) + "-unknown";
4019         sprintf(tn2,"%d-unknown",socket);
4020
4021         iter = clientlist.find(tempnick);
4022
4023         if (iter != clientlist.end()) return;
4024
4025         /*
4026          * It is OK to access the value here this way since we know
4027          * it exists, we just created it above.
4028          *
4029          * At NO other time should you access a value in a map or a
4030          * hash_map this way.
4031          */
4032         clientlist[tempnick] = new userrec();
4033
4034         NonBlocking(socket);
4035         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4036
4037         clientlist[tempnick]->fd = socket;
4038         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4039         strncpy(clientlist[tempnick]->host, host,160);
4040         strncpy(clientlist[tempnick]->dhost, host,160);
4041         strncpy(clientlist[tempnick]->server, ServerName,256);
4042         strncpy(clientlist[tempnick]->ident, "unknown",9);
4043         clientlist[tempnick]->registered = 0;
4044         clientlist[tempnick]->signon = time(NULL);
4045         clientlist[tempnick]->nping = time(NULL)+240;
4046         clientlist[tempnick]->lastping = 1;
4047         clientlist[tempnick]->port = port;
4048
4049         if (iscached)
4050         {
4051                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4052         }
4053         else
4054         {
4055                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4056         }
4057
4058         // set the registration timeout for this user
4059         unsigned long class_regtimeout = 90;
4060         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4061         {
4062                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4063                 {
4064                         class_regtimeout = (unsigned long)i->registration_timeout;
4065                         break;
4066                 }
4067         }
4068
4069         int class_flood = 0;
4070         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4071         {
4072                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4073                 {
4074                         class_flood = i->flood;
4075                         break;
4076                 }
4077         }
4078
4079         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4080         clientlist[tempnick]->flood = class_flood;
4081
4082         for (int i = 0; i < MAXCHANS; i++)
4083         {
4084                 clientlist[tempnick]->chans[i].channel = NULL;
4085                 clientlist[tempnick]->chans[i].uc_modes = 0;
4086         }
4087
4088         if (clientlist.size() == MAXCLIENTS)
4089                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4090 }
4091
4092 void handle_names(char **parameters, int pcnt, userrec *user)
4093 {
4094         chanrec* c;
4095
4096         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4097                 return;
4098         c = FindChan(parameters[0]);
4099         if (c)
4100         {
4101                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4102                 userlist(user,c);
4103                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4104         }
4105         else
4106         {
4107                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4108         }
4109 }
4110
4111 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4112 {
4113         userrec *dest;
4114         chanrec *chan;
4115
4116         user->idle_lastmsg = time(NULL);
4117
4118         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4119                 return;
4120         if (parameters[0][0] == '#')
4121         {
4122                 chan = FindChan(parameters[0]);
4123                 if (chan)
4124                 {
4125                         if ((chan->noexternal) && (!has_channel(user,chan)))
4126                         {
4127                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4128                                 return;
4129                         }
4130                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4131                         {
4132                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4133                                 return;
4134                         }
4135
4136                         int MOD_RESULT = 0;
4137
4138                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4139                         if (MOD_RESULT) {
4140                                 return;
4141                         }
4142
4143                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4144
4145                         // if any users of this channel are on remote servers, broadcast the packet
4146                         char buffer[MAXBUF];
4147                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4148                         NetSendToCommon(user,buffer);
4149                 }
4150                 else
4151                 {
4152                         /* no such nick/channel */
4153                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4154                 }
4155                 return;
4156         }
4157
4158         dest = Find(parameters[0]);
4159         if (dest)
4160         {
4161                 if (strcmp(dest->awaymsg,""))
4162                 {
4163                         /* auto respond with aweh msg */
4164                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4165                 }
4166
4167                 int MOD_RESULT = 0;
4168
4169                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4170                 if (MOD_RESULT) {
4171                         return;
4172                 }
4173
4174
4175
4176                 if (!strcmp(dest->server,user->server))
4177                 {
4178                         // direct write, same server
4179                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4180                 }
4181                 else
4182                 {
4183                         char buffer[MAXBUF];
4184                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4185                         NetSendToOne(dest->server,buffer);
4186                 }
4187         }
4188         else
4189         {
4190                 /* no such nick/channel */
4191                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4192         }
4193 }
4194
4195 void handle_notice(char **parameters, int pcnt, userrec *user)
4196 {
4197         userrec *dest;
4198         chanrec *chan;
4199
4200         user->idle_lastmsg = time(NULL);
4201
4202         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4203                 return;
4204         if (parameters[0][0] == '#')
4205         {
4206                 chan = FindChan(parameters[0]);
4207                 if (chan)
4208                 {
4209                         if ((chan->noexternal) && (!has_channel(user,chan)))
4210                         {
4211                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4212                                 return;
4213                         }
4214                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4215                         {
4216                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4217                                 return;
4218                         }
4219
4220                         int MOD_RESULT = 0;
4221
4222                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4223                         if (MOD_RESULT) {
4224                                 return;
4225                         }
4226
4227                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4228
4229                         // if any users of this channel are on remote servers, broadcast the packet
4230                         char buffer[MAXBUF];
4231                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4232                         NetSendToCommon(user,buffer);
4233                 }
4234                 else
4235                 {
4236                         /* no such nick/channel */
4237                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4238                 }
4239                 return;
4240         }
4241
4242         dest = Find(parameters[0]);
4243         if (dest)
4244         {
4245                 int MOD_RESULT = 0;
4246
4247                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4248                 if (MOD_RESULT) {
4249                         return;
4250                 }
4251
4252                 if (!strcmp(dest->server,user->server))
4253                 {
4254                         // direct write, same server
4255                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4256                 }
4257                 else
4258                 {
4259                         char buffer[MAXBUF];
4260                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4261                         NetSendToOne(dest->server,buffer);
4262                 }
4263         }
4264         else
4265         {
4266                 /* no such nick/channel */
4267                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4268         }
4269 }
4270
4271 char lst[MAXBUF];
4272
4273 char* chlist(userrec *user)
4274 {
4275         int i = 0;
4276         char cmp[MAXBUF];
4277
4278         log(DEBUG,"chlist: %s",user->nick);
4279         strcpy(lst,"");
4280         if (!user)
4281         {
4282                 return lst;
4283         }
4284         for (int i = 0; i != MAXCHANS; i++)
4285         {
4286                 if (user->chans[i].channel != NULL)
4287                 {
4288                         if (user->chans[i].channel->name)
4289                         {
4290                                 strcpy(cmp,user->chans[i].channel->name);
4291                                 strcat(cmp," ");
4292                                 if (!strstr(lst,cmp))
4293                                 {
4294                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4295                                         {
4296                                                 strcat(lst,cmode(user,user->chans[i].channel));
4297                                                 strcat(lst,user->chans[i].channel->name);
4298                                                 strcat(lst," ");
4299                                         }
4300                                 }
4301                         }
4302                 }
4303         }
4304         if (strlen(lst))
4305         {
4306                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4307         }
4308         return lst;
4309 }
4310
4311 void handle_info(char **parameters, int pcnt, userrec *user)
4312 {
4313         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4314         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4315         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4316         FOREACH_MOD OnInfo(user);
4317         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4318 }
4319
4320 void handle_time(char **parameters, int pcnt, userrec *user)
4321 {
4322         time_t rawtime;
4323         struct tm * timeinfo;
4324
4325         time ( &rawtime );
4326         timeinfo = localtime ( &rawtime );
4327         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4328
4329 }
4330
4331 void handle_whois(char **parameters, int pcnt, userrec *user)
4332 {
4333         userrec *dest;
4334         char *t;
4335
4336         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4337                 return;
4338         dest = Find(parameters[0]);
4339         if (dest)
4340         {
4341                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4342                 if (dest->registered == 7)
4343                 {
4344                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4345                         if ((user == dest) || (strchr(user->modes,'o')))
4346                         {
4347                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4348                         }
4349                         if (strcmp(chlist(dest),""))
4350                         {
4351                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4352                         }
4353                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, GetServerDescription(dest->server).c_str());
4354                         if (strcmp(dest->awaymsg,""))
4355                         {
4356                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4357                         }
4358                         if (strchr(dest->modes,'o'))
4359                         {
4360                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4361                         }
4362                         FOREACH_MOD OnWhois(user,dest);
4363                         if (!strcasecmp(user->server,dest->server))
4364                         {
4365                                 // idle time and signon line can only be sent if youre on the same server (according to RFC)
4366                                 WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4367                         }
4368
4369                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4370                 }
4371                 else
4372                 {
4373                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4374                 }
4375         }
4376         else
4377         {
4378                 /* no such nick/channel */
4379                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4380         }
4381 }
4382
4383 void send_network_quit(const char* nick, const char* reason)
4384 {
4385         char buffer[MAXBUF];
4386         snprintf(buffer,MAXBUF,"Q %s :%s",nick,reason);
4387         NetSendToAll(buffer);
4388 }
4389
4390 void handle_quit(char **parameters, int pcnt, userrec *user)
4391 {
4392         user_hash::iterator iter = clientlist.find(user->nick);
4393         char* reason;
4394
4395         if (user->registered == 7)
4396         {
4397                 /* theres more to do here, but for now just close the socket */
4398                 if (pcnt == 1)
4399                 {
4400                         if (parameters[0][0] == ':')
4401                         {
4402                                 *parameters[0]++;
4403                         }
4404                         reason = parameters[0];
4405
4406                         if (strlen(reason)>MAXQUIT)
4407                         {
4408                                 reason[MAXQUIT-1] = '\0';
4409                         }
4410
4411                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4412                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4413                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4414
4415                         char buffer[MAXBUF];
4416                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4417                         NetSendToAll(buffer);
4418                 }
4419                 else
4420                 {
4421                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4422                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4423                         WriteCommonExcept(user,"QUIT :Client exited");
4424
4425                         char buffer[MAXBUF];
4426                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4427                         NetSendToAll(buffer);
4428                 }
4429                 FOREACH_MOD OnUserQuit(user);
4430                 AddWhoWas(user);
4431         }
4432
4433         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4434         fd_reap.push_back(user->fd);
4435
4436         if (iter != clientlist.end())
4437         {
4438                 clientlist.erase(iter);
4439                 log(DEBUG,"deleting user hash value %d",iter->second);
4440                 //if ((user) && (user->registered == 7)) {
4441                         //delete user;
4442                 //}
4443         }
4444
4445         if (user->registered == 7) {
4446                 purge_empty_chans();
4447         }
4448 }
4449
4450 void handle_who(char **parameters, int pcnt, userrec *user)
4451 {
4452         chanrec* Ptr = NULL;
4453
4454         /* theres more to do here, but for now just close the socket */
4455         if (pcnt == 1)
4456         {
4457                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4458                 {
4459                         if (user->chans[0].channel)
4460                         {
4461                                 Ptr = user->chans[0].channel;
4462                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4463                                 {
4464                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4465                                         {
4466                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4467                                         }
4468                                 }
4469                         }
4470                         if (Ptr)
4471                         {
4472                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4473                         }
4474                         else
4475                         {
4476                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4477                         }
4478                         return;
4479                 }
4480                 if (parameters[0][0] == '#')
4481                 {
4482                         Ptr = FindChan(parameters[0]);
4483                         if (Ptr)
4484                         {
4485                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4486                                 {
4487                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4488                                         {
4489                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4490                                         }
4491                                 }
4492                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4493                         }
4494                         else
4495                         {
4496                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4497                         }
4498                 }
4499                 else
4500                 {
4501                         userrec* u = Find(parameters[0]);
4502                         WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, u->nick, u->ident, u->dhost, u->server, u->nick, u->fullname);
4503                 }
4504         }
4505         if (pcnt == 2)
4506         {
4507                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4508                 {
4509                         Ptr = user->chans[0].channel;
4510                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4511                         {
4512                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4513                                 {
4514                                         if (strchr(i->second->modes,'o'))
4515                                         {
4516                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4517                                         }
4518                                 }
4519                         }
4520                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4521                         return;
4522                 }
4523         }
4524 }
4525
4526 void handle_wallops(char **parameters, int pcnt, userrec *user)
4527 {
4528         WriteWallOps(user,false,"%s",parameters[0]);
4529 }
4530
4531 void handle_list(char **parameters, int pcnt, userrec *user)
4532 {
4533         chanrec* Ptr;
4534
4535         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4536         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4537         {
4538                 if ((!i->second->c_private) && (!i->second->secret))
4539                 {
4540                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4541                 }
4542         }
4543         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4544 }
4545
4546
4547 void handle_rehash(char **parameters, int pcnt, userrec *user)
4548 {
4549         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4550         ReadConfig();
4551         FOREACH_MOD OnRehash();
4552         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4553 }
4554
4555
4556 int usercnt(void)
4557 {
4558         return clientlist.size();
4559 }
4560
4561
4562 int usercount_invisible(void)
4563 {
4564         int c = 0;
4565
4566         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4567         {
4568                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4569         }
4570         return c;
4571 }
4572
4573 int usercount_opers(void)
4574 {
4575         int c = 0;
4576
4577         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4578         {
4579                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4580         }
4581         return c;
4582 }
4583
4584 int usercount_unknown(void)
4585 {
4586         int c = 0;
4587
4588         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4589         {
4590                 if ((i->second->fd) && (i->second->registered != 7))
4591                         c++;
4592         }
4593         return c;
4594 }
4595
4596 long chancount(void)
4597 {
4598         return chanlist.size();
4599 }
4600
4601 long count_servs(void)
4602 {
4603         int c = 0;
4604         //for (int j = 0; j < 255; j++)
4605         //{
4606         //      if (servers[j] != NULL)
4607         //              c++;
4608         //}
4609         return c;
4610 }
4611
4612 long servercount(void)
4613 {
4614         return count_servs()+1;
4615 }
4616
4617 long local_count()
4618 {
4619         int c = 0;
4620         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4621         {
4622                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
4623         }
4624         return c;
4625 }
4626
4627
4628 void handle_lusers(char **parameters, int pcnt, userrec *user)
4629 {
4630         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4631         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4632         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4633         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4634         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
4635 }
4636
4637 void handle_admin(char **parameters, int pcnt, userrec *user)
4638 {
4639         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4640         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4641         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4642         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4643 }
4644
4645 void ShowMOTD(userrec *user)
4646 {
4647         if (!MOTD.size())
4648         {
4649                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4650                 return;
4651         }
4652         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4653         for (int i = 0; i != MOTD.size(); i++)
4654         {
4655                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4656         }
4657         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4658 }
4659
4660 void ShowRULES(userrec *user)
4661 {
4662         if (!RULES.size())
4663         {
4664                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4665                 return;
4666         }
4667         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4668         for (int i = 0; i != RULES.size(); i++)
4669         {
4670                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4671         }
4672         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4673 }
4674
4675 /* shows the message of the day, and any other on-logon stuff */
4676 void ConnectUser(userrec *user)
4677 {
4678         user->registered = 7;
4679         user->idle_lastmsg = time(NULL);
4680         log(DEBUG,"ConnectUser: %s",user->nick);
4681
4682         if (strcmp(Passwd(user),"") && (!user->haspassed))
4683         {
4684                 kill_link(user,"Invalid password");
4685                 return;
4686         }
4687         if (IsDenied(user))
4688         {
4689                 kill_link(user,"Unauthorised connection");
4690                 return;
4691         }
4692
4693         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
4694         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
4695         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
4696         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
4697         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
4698         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);
4699         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);
4700         ShowMOTD(user);
4701         FOREACH_MOD OnUserConnect(user);
4702         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
4703
4704         char buffer[MAXBUF];
4705         snprintf(buffer,MAXBUF,"N %d %s %s %s %s +%s %s :%s",user->age,user->nick,user->host,user->dhost,user->ident,user->modes,ServerName,user->fullname);
4706         NetSendToAll(buffer);
4707 }
4708
4709 void handle_version(char **parameters, int pcnt, userrec *user)
4710 {
4711         char Revision[] = "$Revision$";
4712
4713         char *s1 = Revision;
4714         char *savept;
4715         char *v1 = strtok_r(s1," ",&savept);
4716         s1 = savept;
4717         char *v2 = strtok_r(s1," ",&savept);
4718         s1 = savept;
4719
4720         WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%d)",user->nick,VERSION,v2,ServerName,SYSTEM,OPTIMISATION);
4721 }
4722
4723 void handle_ping(char **parameters, int pcnt, userrec *user)
4724 {
4725         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
4726 }
4727
4728 void handle_pong(char **parameters, int pcnt, userrec *user)
4729 {
4730         // set the user as alive so they survive to next ping
4731         user->lastping = 1;
4732 }
4733
4734 void handle_motd(char **parameters, int pcnt, userrec *user)
4735 {
4736         ShowMOTD(user);
4737 }
4738
4739 void handle_rules(char **parameters, int pcnt, userrec *user)
4740 {
4741         ShowRULES(user);
4742 }
4743
4744 void handle_user(char **parameters, int pcnt, userrec *user)
4745 {
4746         if (user->registered < 3)
4747         {
4748                 if (isident(parameters[0]) == 0) {
4749                         // This kinda Sucks, According to the RFC thou, its either this,
4750                         // or "You have already registered" :p -- Craig
4751                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
4752                 }
4753                 else {
4754                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
4755                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
4756                         strncat(user->ident,parameters[0],IDENTMAX);
4757                         strncpy(user->fullname,parameters[3],128);
4758                         user->registered = (user->registered | 1);
4759                 }
4760         }
4761         else
4762         {
4763                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4764                 return;
4765         }
4766         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
4767         if (user->registered == 3)
4768         {
4769                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
4770                 ConnectUser(user);
4771         }
4772 }
4773
4774 void handle_userhost(char **parameters, int pcnt, userrec *user)
4775 {
4776         char Return[MAXBUF],junk[MAXBUF];
4777         sprintf(Return,"302 %s :",user->nick);
4778         for (int i = 0; i < pcnt; i++)
4779         {
4780                 userrec *u = Find(parameters[i]);
4781                 if (u)
4782                 {
4783                         if (strchr(u->modes,'o'))
4784                         {
4785                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
4786                                 strcat(Return,junk);
4787                         }
4788                         else
4789                         {
4790                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
4791                                 strcat(Return,junk);
4792                         }
4793                 }
4794         }
4795         WriteServ(user->fd,Return);
4796 }
4797
4798
4799 void handle_ison(char **parameters, int pcnt, userrec *user)
4800 {
4801         char Return[MAXBUF];
4802         sprintf(Return,"303 %s :",user->nick);
4803         for (int i = 0; i < pcnt; i++)
4804         {
4805                 userrec *u = Find(parameters[i]);
4806                 if (u)
4807                 {
4808                         strcat(Return,u->nick);
4809                         strcat(Return," ");
4810                 }
4811         }
4812         WriteServ(user->fd,Return);
4813 }
4814
4815
4816 void handle_away(char **parameters, int pcnt, userrec *user)
4817 {
4818         if (pcnt)
4819         {
4820                 strcpy(user->awaymsg,parameters[0]);
4821                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
4822         }
4823         else
4824         {
4825                 strcpy(user->awaymsg,"");
4826                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
4827         }
4828 }
4829
4830 void handle_whowas(char **parameters, int pcnt, userrec* user)
4831 {
4832         user_hash::iterator i = whowas.find(parameters[0]);
4833
4834         if (i == whowas.end())
4835         {
4836                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
4837                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
4838         }
4839         else
4840         {
4841                 time_t rawtime = i->second->signon;
4842                 tm *timeinfo;
4843                 char b[MAXBUF];
4844
4845                 timeinfo = localtime(&rawtime);
4846                 strcpy(b,asctime(timeinfo));
4847                 b[strlen(b)-1] = '\0';
4848
4849                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
4850                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
4851                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
4852         }
4853
4854 }
4855
4856 void handle_trace(char **parameters, int pcnt, userrec *user)
4857 {
4858         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
4859         {
4860                 if (i->second)
4861                 {
4862                         if (isnick(i->second->nick))
4863                         {
4864                                 if (strchr(i->second->modes,'o'))
4865                                 {
4866                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
4867                                 }
4868                                 else
4869                                 {
4870                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
4871                                 }
4872                         }
4873                         else
4874                         {
4875                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
4876                         }
4877                 }
4878         }
4879 }
4880
4881 void handle_modules(char **parameters, int pcnt, userrec *user)
4882 {
4883         for (int i = 0; i < module_names.size(); i++)
4884         {
4885                         Version V = modules[i]->GetVersion();
4886                         char modulename[MAXBUF];
4887                         strncpy(modulename,module_names[i].c_str(),256);
4888                         WriteServ(user->fd,"900 %s :0x%08lx %d.%d.%d.%d %s",user->nick,modules[i],V.Major,V.Minor,V.Revision,V.Build,CleanFilename(modulename));
4889         }
4890 }
4891
4892 // calls a handler function for a command
4893
4894 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
4895 {
4896                 for (int i = 0; i < cmdlist.size(); i++)
4897                 {
4898                         if (!strcasecmp(cmdlist[i].command,commandname))
4899                         {
4900                                 if (cmdlist[i].handler_function)
4901                                 {
4902                                         if (pcnt>=cmdlist[i].min_params)
4903                                         {
4904                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
4905                                                 {
4906                                                         cmdlist[i].handler_function(parameters,pcnt,user);
4907                                                 }
4908                                         }
4909                                 }
4910                         }
4911                 }
4912 }
4913
4914 void handle_stats(char **parameters, int pcnt, userrec *user)
4915 {
4916         if (pcnt != 1)
4917         {
4918                 return;
4919         }
4920         if (strlen(parameters[0])>1)
4921         {
4922                 /* make the stats query 1 character long */
4923                 parameters[0][1] = '\0';
4924         }
4925
4926         /* stats m (list number of times each command has been used, plus bytecount) */
4927         if (!strcasecmp(parameters[0],"m"))
4928         {
4929                 for (int i = 0; i < cmdlist.size(); i++)
4930                 {
4931                         if (cmdlist[i].handler_function)
4932                         {
4933                                 if (cmdlist[i].use_count)
4934                                 {
4935                                         /* RPL_STATSCOMMANDS */
4936                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
4937                                 }
4938                         }
4939                 }
4940
4941         }
4942
4943         /* stats z (debug and memory info) */
4944         if (!strcasecmp(parameters[0],"z"))
4945         {
4946                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
4947                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
4948                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
4949                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
4950                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
4951                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
4952                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
4953                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
4954         }
4955
4956         /* stats o */
4957         if (!strcasecmp(parameters[0],"o"))
4958         {
4959                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
4960                 {
4961                         char LoginName[MAXBUF];
4962                         char HostName[MAXBUF];
4963                         char OperType[MAXBUF];
4964                         ConfValue("oper","name",i,LoginName,&config_f);
4965                         ConfValue("oper","host",i,HostName,&config_f);
4966                         ConfValue("oper","type",i,OperType,&config_f);
4967                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
4968                 }
4969         }
4970
4971         /* stats l (show user I/O stats) */
4972         if (!strcasecmp(parameters[0],"l"))
4973         {
4974                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
4975                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
4976                 {
4977                         if (isnick(i->second->nick))
4978                         {
4979                                 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);
4980                         }
4981                         else
4982                         {
4983                                 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);
4984                         }
4985
4986                 }
4987         }
4988
4989         /* stats u (show server uptime) */
4990         if (!strcasecmp(parameters[0],"u"))
4991         {
4992                 time_t current_time = 0;
4993                 current_time = time(NULL);
4994                 time_t server_uptime = current_time - startup_time;
4995                 struct tm* stime;
4996                 stime = gmtime(&server_uptime);
4997                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
4998                  * Craig suggested this, and it seemed a good idea so in it went */
4999                 if (stime->tm_year > 70)
5000                 {
5001                         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);
5002                 }
5003                 else
5004                 {
5005                         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);
5006                 }
5007         }
5008
5009         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5010         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5011
5012 }
5013
5014 void handle_connect(char **parameters, int pcnt, userrec *user)
5015 {
5016         char Link_ServerName[1024];
5017         char Link_IPAddr[1024];
5018         char Link_Port[1024];
5019         char Link_Pass[1024];
5020         int LinkPort;
5021         bool found = false;
5022
5023         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5024         {
5025                 if (!found)
5026                 {
5027                         ConfValue("link","name",i,Link_ServerName,&config_f);
5028                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5029                         ConfValue("link","port",i,Link_Port,&config_f);
5030                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
5031                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5032                         LinkPort = atoi(Link_Port);
5033                         if (match(Link_ServerName,parameters[0])) {
5034                                 found = true;
5035                                 break;
5036                         }
5037                 }
5038         }
5039
5040         if (!found) {
5041                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5042                 return;
5043         }
5044
5045         // TODO: Perform a check here to stop a server being linked twice!
5046
5047         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5048
5049         if (me[defaultRoute])
5050         {
5051                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
5052                 return;
5053         }
5054         else
5055         {
5056                 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);
5057         }
5058 }
5059
5060 void DoSplitEveryone()
5061 {
5062         bool go_again = true;
5063         while (go_again)
5064         {
5065                 go_again = false;
5066                 for (int i = 0; i < 32; i++)
5067                 {
5068                         if (me[i] != NULL)
5069                         {
5070                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
5071                                 {
5072                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
5073                                         {
5074                                                 j->routes.clear();
5075                                                 j->CloseConnection();
5076                                                 me[i]->connectors.erase(j);
5077                                                 go_again = true;
5078                                                 break;
5079                                         }
5080                                 }
5081                         }
5082                 }
5083         }
5084         log(DEBUG,"Removed server. Will remove clients...");
5085         // iterate through the userlist and remove all users on this server.
5086         // because we're dealing with a mesh, we dont have to deal with anything
5087         // "down-route" from this server (nice huh)
5088         go_again = true;
5089         char reason[MAXBUF];
5090         while (go_again)
5091         {
5092                 go_again = false;
5093                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
5094                 {
5095                         if (strcasecmp(u->second->server,ServerName))
5096                         {
5097                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
5098                                 kill_link(u->second,reason);
5099                                 go_again = true;
5100                                 break;
5101                         }
5102                 }
5103         }
5104 }
5105
5106
5107
5108 void handle_squit(char **parameters, int pcnt, userrec *user)
5109 {
5110         // send out an squit across the mesh and then clear the server list (for local squit)
5111         if (!pcnt)
5112         {
5113                 WriteOpers("SQUIT command issued by %s",user->nick);
5114                 char buffer[MAXBUF];
5115                 snprintf(buffer,MAXBUF,"& %s",ServerName);
5116                 NetSendToAll(buffer);
5117                 DoSplitEveryone();
5118         }
5119         else
5120         {
5121                 WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet.");
5122         }
5123 }
5124
5125 char islast(const char* s)
5126 {
5127         char c = '`';
5128         for (int j = 0; j < 32; j++)
5129         {
5130                 if (me[j] != NULL)
5131                 {
5132                         for (int k = 0; k < me[j]->connectors.size(); k++)
5133                         {
5134                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
5135                                 {
5136                                         c = '|';
5137                                 }
5138                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
5139                                 {
5140                                         c = '`';
5141                                 }
5142                         }
5143                 }
5144         }
5145         return c;
5146 }
5147
5148 long map_count(const char* s)
5149 {
5150         int c = 0;
5151         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
5152         {
5153                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
5154         }
5155         return c;
5156 }
5157
5158 void handle_links(char **parameters, int pcnt, userrec *user)
5159 {
5160         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5161         for (int j = 0; j < 32; j++)
5162         {
5163                 if (me[j] != NULL)
5164                 {
5165                         for (int k = 0; k < me[j]->connectors.size(); k++)
5166                         {
5167                                 WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,me[j]->connectors[k].GetServerName().c_str(),ServerName,me[j]->connectors[k].GetDescription().c_str());
5168                         }
5169                 }
5170         }
5171         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5172 }
5173
5174 void handle_map(char **parameters, int pcnt, userrec *user)
5175 {
5176         char line[MAXBUF];
5177         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
5178         while (strlen(line) < 50)
5179                 strcat(line," ");
5180         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
5181         for (int j = 0; j < 32; j++)
5182         {
5183                 if (me[j] != NULL)
5184                 {
5185                         for (int k = 0; k < me[j]->connectors.size(); k++)
5186                         {
5187                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
5188                                 while (strlen(line) < 50)
5189                                         strcat(line," ");
5190                                 WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(me[j]->connectors[k].GetServerName().c_str()),(float)(((float)map_count(me[j]->connectors[k].GetServerName().c_str())/(float)usercnt())*100));
5191                         }
5192                 }
5193         }
5194         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5195 }
5196
5197
5198 void handle_oper(char **parameters, int pcnt, userrec *user)
5199 {
5200         char LoginName[MAXBUF];
5201         char Password[MAXBUF];
5202         char OperType[MAXBUF];
5203         char TypeName[MAXBUF];
5204         char Hostname[MAXBUF];
5205         int i,j;
5206
5207         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5208         {
5209                 ConfValue("oper","name",i,LoginName,&config_f);
5210                 ConfValue("oper","password",i,Password,&config_f);
5211                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5212                 {
5213                         /* correct oper credentials */
5214                         ConfValue("oper","type",i,OperType,&config_f);
5215                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5216                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5217                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5218                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5219                         {
5220                                 ConfValue("type","name",j,TypeName,&config_f);
5221                                 if (!strcmp(TypeName,OperType))
5222                                 {
5223                                         /* found this oper's opertype */
5224                                         ConfValue("type","host",j,Hostname,&config_f);
5225                                         ChangeDisplayedHost(user,Hostname);
5226                                 }
5227                         }
5228                         if (!strchr(user->modes,'o'))
5229                         {
5230                                 strcat(user->modes,"o");
5231                         }
5232                         FOREACH_MOD OnOper(user);
5233                         return;
5234                 }
5235         }
5236         /* no such oper */
5237         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5238         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5239 }
5240
5241 void handle_nick(char **parameters, int pcnt, userrec *user)
5242 {
5243         if (pcnt < 1)
5244         {
5245                 log(DEBUG,"not enough params for handle_nick");
5246                 return;
5247         }
5248         if (!parameters[0])
5249         {
5250                 log(DEBUG,"invalid parameter passed to handle_nick");
5251                 return;
5252         }
5253         if (!strlen(parameters[0]))
5254         {
5255                 log(DEBUG,"zero length new nick passed to handle_nick");
5256                 return;
5257         }
5258         if (!user)
5259         {
5260                 log(DEBUG,"invalid user passed to handle_nick");
5261                 return;
5262         }
5263         if (!user->nick)
5264         {
5265                 log(DEBUG,"invalid old nick passed to handle_nick");
5266                 return;
5267         }
5268         if (!strcasecmp(user->nick,parameters[0]))
5269         {
5270                 log(DEBUG,"old nick is new nick, skipping");
5271                 return;
5272         }
5273         else
5274         {
5275                 if (strlen(parameters[0]) > 1)
5276                 {
5277                         if (parameters[0][0] == ':')
5278                         {
5279                                 *parameters[0]++;
5280                         }
5281                 }
5282                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5283                 {
5284                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5285                         return;
5286                 }
5287         }
5288         if (isnick(parameters[0]) == 0)
5289         {
5290                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5291                 return;
5292         }
5293
5294         if (user->registered == 7)
5295         {
5296                 WriteCommon(user,"NICK %s",parameters[0]);
5297
5298                 // Q token must go to ALL servers!!!
5299                 char buffer[MAXBUF];
5300                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5301                 NetSendToAll(buffer);
5302
5303         }
5304
5305         /* change the nick of the user in the users_hash */
5306         user = ReHashNick(user->nick, parameters[0]);
5307         /* actually change the nick within the record */
5308         if (!user) return;
5309         if (!user->nick) return;
5310
5311         strncpy(user->nick, parameters[0],NICKMAX);
5312
5313         log(DEBUG,"new nick set: %s",user->nick);
5314
5315         if (user->registered < 3)
5316                 user->registered = (user->registered | 2);
5317         if (user->registered == 3)
5318         {
5319                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5320                 ConnectUser(user);
5321         }
5322         log(DEBUG,"exit nickchange: %s",user->nick);
5323 }
5324
5325 void force_nickchange(userrec* user,const char* newnick)
5326 {
5327         char nick[MAXBUF];
5328         strcpy(nick,"");
5329
5330         if (user)
5331         {
5332                 if (newnick)
5333                 {
5334                         strncpy(nick,newnick,MAXBUF);
5335                 }
5336                 if (user->registered == 7)
5337                 {
5338                         char* pars[1];
5339                         pars[0] = nick;
5340                         handle_nick(pars,1,user);
5341                 }
5342         }
5343 }
5344
5345
5346 int process_parameters(char **command_p,char *parameters)
5347 {
5348         int i = 0;
5349         int j = 0;
5350         int q = 0;
5351         q = strlen(parameters);
5352         if (!q)
5353         {
5354                 /* no parameters, command_p invalid! */
5355                 return 0;
5356         }
5357         if (parameters[0] == ':')
5358         {
5359                 command_p[0] = parameters+1;
5360                 return 1;
5361         }
5362         if (q)
5363         {
5364                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5365                 {
5366                         /* only one parameter */
5367                         command_p[0] = parameters;
5368                         if (parameters[0] == ':')
5369                         {
5370                                 if (strchr(parameters,' ') != NULL)
5371                                 {
5372                                         command_p[0]++;
5373                                 }
5374                         }
5375                         return 1;
5376                 }
5377         }
5378         command_p[j++] = parameters;
5379         for (int i = 0; i <= q; i++)
5380         {
5381                 if (parameters[i] == ' ')
5382                 {
5383                         command_p[j++] = parameters+i+1;
5384                         parameters[i] = '\0';
5385                         if (command_p[j-1][0] == ':')
5386                         {
5387                                 *command_p[j-1]++; /* remove dodgy ":" */
5388                                 break;
5389                                 /* parameter like this marks end of the sequence */
5390                         }
5391                 }
5392         }
5393         return j; /* returns total number of items in the list */
5394 }
5395
5396 void process_command(userrec *user, char* cmd)
5397 {
5398         char *parameters;
5399         char *command;
5400         char *command_p[127];
5401         char p[MAXBUF], temp[MAXBUF];
5402         int i, j, items, cmd_found;
5403
5404         for (int i = 0; i < 127; i++)
5405                 command_p[i] = NULL;
5406
5407         if (!user)
5408         {
5409                 return;
5410         }
5411         if (!cmd)
5412         {
5413                 return;
5414         }
5415         if (!strcmp(cmd,""))
5416         {
5417                 return;
5418         }
5419
5420         int total_params = 0;
5421         if (strlen(cmd)>2)
5422         {
5423                 for (int q = 0; q < strlen(cmd)-1; q++)
5424                 {
5425                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5426                         {
5427                                 total_params++;
5428                                 // found a 'trailing', we dont count them after this.
5429                                 break;
5430                         }
5431                         if (cmd[q] == ' ')
5432                                 total_params++;
5433                 }
5434         }
5435
5436         // another phidjit bug...
5437         if (total_params > 126)
5438         {
5439                 kill_link(user,"Protocol violation (1)");
5440                 return;
5441         }
5442
5443         strcpy(temp,cmd);
5444
5445         std::string tmp = cmd;
5446         for (int i = 0; i <= MODCOUNT; i++)
5447         {
5448                 std::string oldtmp = tmp;
5449                 modules[i]->OnServerRaw(tmp,true);
5450                 if (oldtmp != tmp)
5451                 {
5452                         log(DEBUG,"A Module changed the input string!");
5453                         log(DEBUG,"New string: %s",tmp.c_str());
5454                         log(DEBUG,"Old string: %s",oldtmp.c_str());
5455                         break;
5456                 }
5457         }
5458         strncpy(cmd,tmp.c_str(),MAXBUF);
5459         strcpy(temp,cmd);
5460
5461         if (!strchr(cmd,' '))
5462         {
5463                 /* no parameters, lets skip the formalities and not chop up
5464                  * the string */
5465                 log(DEBUG,"About to preprocess command with no params");
5466                 items = 0;
5467                 command_p[0] = NULL;
5468                 parameters = NULL;
5469                 for (int i = 0; i <= strlen(cmd); i++)
5470                 {
5471                         cmd[i] = toupper(cmd[i]);
5472                 }
5473                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5474                 command = cmd;
5475         }
5476         else
5477         {
5478                 strcpy(cmd,"");
5479                 j = 0;
5480                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5481                 for (int i = 0; i < strlen(temp); i++)
5482                 {
5483                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5484                         {
5485                                 cmd[j++] = temp[i];
5486                                 cmd[j] = 0;
5487                         }
5488                 }
5489                 /* split the full string into a command plus parameters */
5490                 parameters = p;
5491                 strcpy(p," ");
5492                 command = cmd;
5493                 if (strchr(cmd,' '))
5494                 {
5495                         for (int i = 0; i <= strlen(cmd); i++)
5496                         {
5497                                 /* capitalise the command ONLY, leave params intact */
5498                                 cmd[i] = toupper(cmd[i]);
5499                                 /* are we nearly there yet?! :P */
5500                                 if (cmd[i] == ' ')
5501                                 {
5502                                         command = cmd;
5503                                         parameters = cmd+i+1;
5504                                         cmd[i] = '\0';
5505                                         break;
5506                                 }
5507                         }
5508                 }
5509                 else
5510                 {
5511                         for (int i = 0; i <= strlen(cmd); i++)
5512                         {
5513                                 cmd[i] = toupper(cmd[i]);
5514                         }
5515                 }
5516
5517         }
5518         cmd_found = 0;
5519
5520         if (strlen(command)>MAXCOMMAND)
5521         {
5522                 kill_link(user,"Protocol violation (2)");
5523                 return;
5524         }
5525
5526         for (int x = 0; x < strlen(command); x++)
5527         {
5528                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5529                 {
5530                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5531                         {
5532                                 if (!strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5533                                 {
5534                                         kill_link(user,"Protocol violation (3)");
5535                                         return;
5536                                 }
5537                         }
5538                 }
5539         }
5540
5541         for (int i = 0; i != cmdlist.size(); i++)
5542         {
5543                 if (strcmp(cmdlist[i].command,""))
5544                 {
5545                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5546                         {
5547                                 log(DEBUG,"Found matching command");
5548
5549                                 if (parameters)
5550                                 {
5551                                         if (strcmp(parameters,""))
5552                                         {
5553                                                 items = process_parameters(command_p,parameters);
5554                                         }
5555                                         else
5556                                         {
5557                                                 items = 0;
5558                                                 command_p[0] = NULL;
5559                                         }
5560                                 }
5561                                 else
5562                                 {
5563                                         items = 0;
5564                                         command_p[0] = NULL;
5565                                 }
5566
5567                                 if (user)
5568                                 {
5569                                         log(DEBUG,"Processing command");
5570
5571                                         /* activity resets the ping pending timer */
5572                                         user->nping = time(NULL) + 120;
5573                                         if ((items) < cmdlist[i].min_params)
5574                                         {
5575                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5576                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5577                                                 return;
5578                                         }
5579                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5580                                         {
5581                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5582                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5583                                                 cmd_found = 1;
5584                                                 return;
5585                                         }
5586                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5587                                          * deny command! */
5588                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5589                                         {
5590                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5591                                                 {
5592                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5593                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5594                                                         return;
5595                                                 }
5596                                         }
5597                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5598                                         {
5599                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5600                                                 if (cmdlist[i].handler_function)
5601                                                 {
5602                                                         /* ikky /stats counters */
5603                                                         if (temp)
5604                                                         {
5605                                                                 if (user)
5606                                                                 {
5607                                                                         user->bytes_in += strlen(temp);
5608                                                                         user->cmds_in++;
5609                                                                 }
5610                                                                 cmdlist[i].use_count++;
5611                                                                 cmdlist[i].total_bytes+=strlen(temp);
5612                                                         }
5613
5614                                                         /* WARNING: nothing may come after the
5615                                                          * command handler call, as the handler
5616                                                          * may free the user structure! */
5617
5618                                                         cmdlist[i].handler_function(command_p,items,user);
5619                                                 }
5620                                                 return;
5621                                         }
5622                                         else
5623                                         {
5624                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5625                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5626                                                 return;
5627                                         }
5628                                 }
5629                                 cmd_found = 1;
5630                         }
5631                 }
5632         }
5633         if ((!cmd_found) && (user))
5634         {
5635                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5636                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5637         }
5638 }
5639
5640
5641 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5642 {
5643         command_t comm;
5644         /* create the command and push it onto the table */
5645         strcpy(comm.command,cmd);
5646         comm.handler_function = f;
5647         comm.flags_needed = flags;
5648         comm.min_params = minparams;
5649         comm.use_count = 0;
5650         comm.total_bytes = 0;
5651         cmdlist.push_back(comm);
5652         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5653 }
5654
5655 void SetupCommandTable(void)
5656 {
5657         createcommand("USER",handle_user,0,4);
5658         createcommand("NICK",handle_nick,0,1);
5659         createcommand("QUIT",handle_quit,0,0);
5660         createcommand("VERSION",handle_version,0,0);
5661         createcommand("PING",handle_ping,0,1);
5662         createcommand("PONG",handle_pong,0,1);
5663         createcommand("ADMIN",handle_admin,0,0);
5664         createcommand("PRIVMSG",handle_privmsg,0,2);
5665         createcommand("INFO",handle_info,0,0);
5666         createcommand("TIME",handle_time,0,0);
5667         createcommand("WHOIS",handle_whois,0,1);
5668         createcommand("WALLOPS",handle_wallops,'o',1);
5669         createcommand("NOTICE",handle_notice,0,2);
5670         createcommand("JOIN",handle_join,0,1);
5671         createcommand("NAMES",handle_names,0,1);
5672         createcommand("PART",handle_part,0,1);
5673         createcommand("KICK",handle_kick,0,2);
5674         createcommand("MODE",handle_mode,0,1);
5675         createcommand("TOPIC",handle_topic,0,1);
5676         createcommand("WHO",handle_who,0,1);
5677         createcommand("MOTD",handle_motd,0,0);
5678         createcommand("RULES",handle_rules,0,0);
5679         createcommand("OPER",handle_oper,0,2);
5680         createcommand("LIST",handle_list,0,0);
5681         createcommand("DIE",handle_die,'o',1);
5682         createcommand("RESTART",handle_restart,'o',1);
5683         createcommand("KILL",handle_kill,'o',2);
5684         createcommand("REHASH",handle_rehash,'o',0);
5685         createcommand("LUSERS",handle_lusers,0,0);
5686         createcommand("STATS",handle_stats,0,1);
5687         createcommand("USERHOST",handle_userhost,0,1);
5688         createcommand("AWAY",handle_away,0,0);
5689         createcommand("ISON",handle_ison,0,0);
5690         createcommand("SUMMON",handle_summon,0,0);
5691         createcommand("USERS",handle_users,0,0);
5692         createcommand("INVITE",handle_invite,0,2);
5693         createcommand("PASS",handle_pass,0,1);
5694         createcommand("TRACE",handle_trace,'o',0);
5695         createcommand("WHOWAS",handle_whowas,0,1);
5696         createcommand("CONNECT",handle_connect,'o',1);
5697         createcommand("SQUIT",handle_squit,'o',0);
5698         createcommand("MODULES",handle_modules,'o',0);
5699         createcommand("LINKS",handle_links,0,0);
5700         createcommand("MAP",handle_map,0,0);
5701 }
5702
5703 void process_buffer(const char* cmdbuf,userrec *user)
5704 {
5705         if (!user)
5706         {
5707                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5708                 return;
5709         }
5710         char cmd[MAXBUF];
5711         int i;
5712         if (!cmdbuf)
5713         {
5714                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5715                 return;
5716         }
5717         if (!strcmp(cmdbuf,""))
5718         {
5719                 return;
5720         }
5721         strncpy(cmd,cmdbuf,MAXBUF);
5722         if (!strcmp(cmd,""))
5723         {
5724                 return;
5725         }
5726         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5727         {
5728                 cmd[strlen(cmd)-1] = '\0';
5729         }
5730         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5731         {
5732                 cmd[strlen(cmd)-1] = '\0';
5733         }
5734         if (!strcmp(cmd,""))
5735         {
5736                 return;
5737         }
5738         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5739         tidystring(cmd);
5740         if ((user) && (cmd))
5741         {
5742                 process_command(user,cmd);
5743         }
5744 }
5745
5746 void DoSync(serverrec* serv, char* udp_host)
5747 {
5748         char data[MAXBUF];
5749         // send start of sync marker: Y <timestamp>
5750         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
5751         // except the ones its receiving it from.
5752         snprintf(data,MAXBUF,"Y %d",time(NULL));
5753         serv->SendPacket(data,udp_host);
5754         // send users and channels
5755         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
5756         {
5757                 snprintf(data,MAXBUF,"N %d %s %s %s %s +%s %s :%s",u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->modes,u->second->server,u->second->fullname);
5758                 serv->SendPacket(data,udp_host);
5759                 if (strcmp(chlist(u->second),""))
5760                 {
5761                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
5762                         serv->SendPacket(data,udp_host);
5763                 }
5764         }
5765         // send channel modes, topics etc...
5766         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
5767         {
5768                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
5769                 serv->SendPacket(data,udp_host);
5770                 if (strcmp(c->second->topic,""))
5771                 {
5772                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
5773                         serv->SendPacket(data,udp_host);
5774                 }
5775                 // send current banlist
5776
5777                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
5778                 {
5779                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
5780                         serv->SendPacket(data,udp_host);
5781                 }
5782         }
5783         // send end of sync marker: E <timestamp>
5784         snprintf(data,MAXBUF,"F %d",time(NULL));
5785         serv->SendPacket(data,udp_host);
5786         // ircd sends its serverlist after the end of sync here
5787 }
5788
5789
5790 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5791 {
5792         char* src = strtok(params," ");
5793         char* dest = strtok(NULL," :");
5794         char* text = strtok(NULL,"\r\n");
5795         text++;
5796
5797         userrec* user = Find(src);
5798         if (user)
5799         {
5800                 userrec* dst = Find(dest);
5801
5802                 if (dst)
5803                 {
5804                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
5805                 }
5806                 else
5807                 {
5808                         chanrec* d = FindChan(dest);
5809                         if (d)
5810                         {
5811                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
5812                         }
5813                 }
5814         }
5815
5816 }
5817
5818
5819 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5820 {
5821         char* src = strtok(params," ");
5822         char* dest = strtok(NULL," :");
5823         char* text = strtok(NULL,"\r\n");
5824         text++;
5825
5826         userrec* user = Find(src);
5827         if (user)
5828         {
5829                 userrec* dst = Find(dest);
5830
5831                 if (dst)
5832                 {
5833                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
5834                 }
5835                 else
5836                 {
5837                         chanrec* d = FindChan(dest);
5838                         if (d)
5839                         {
5840                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
5841                         }
5842                 }
5843         }
5844
5845 }
5846
5847 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5848 {
5849         char* nick = strtok(params," ");
5850         char* from = strtok(NULL," ");
5851         char* channel = strtok(NULL," ");
5852         userrec* u = Find(nick);
5853         userrec* user = Find(from);
5854         chanrec* c = FindChan(channel);
5855         if ((c) && (u) && (user))
5856         {
5857                 u->InviteTo(c->name);
5858                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
5859         }
5860 }
5861
5862 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5863 {
5864         char* setby = strtok(params," ");
5865         char* channel = strtok(NULL," :");
5866         char* topic = strtok(NULL,"\r\n");
5867         topic++;
5868         userrec* u = Find(setby);
5869         chanrec* c = FindChan(channel);
5870         if ((c) && (u))
5871         {
5872                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
5873                 strncpy(c->topic,topic,MAXTOPIC);
5874                 strncpy(c->setby,u->nick,NICKMAX);
5875         }
5876 }
5877
5878
5879 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5880 {
5881         char* tm = strtok(params," ");
5882         char* setby = strtok(NULL," ");
5883         char* channel = strtok(NULL," :");
5884         char* topic = strtok(NULL,"\r\n");
5885         topic++;
5886         time_t TS = atoi(tm);
5887         chanrec* c = FindChan(channel);
5888         if (c)
5889         {
5890                 // in the case of topics and TS, the *NEWER*
5891                 if (TS <= c->topicset)
5892                 {
5893                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
5894                         strncpy(c->topic,topic,MAXTOPIC);
5895                         strncpy(c->setby,setby,NICKMAX);
5896                 }
5897         }
5898 }
5899
5900 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5901 {
5902         char* pars[128];
5903         char original[MAXBUF],target[MAXBUF];
5904         strncpy(original,params,MAXBUF);
5905         int index = 0;
5906         char* parameter = strtok(params," ");
5907         strncpy(target,parameter,MAXBUF);
5908         while (parameter)
5909         {
5910                 pars[index++] = parameter;
5911                 parameter = strtok(NULL," ");
5912         }
5913         merge_mode(pars,index);
5914         if (FindChan(target))
5915         {
5916                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
5917         }
5918         if (Find(target))
5919         {
5920                 WriteTo(NULL,Find(target),"MODE %s",original);
5921         }
5922 }
5923
5924 // m is modes set by users only (not servers) valid targets are channels or users.
5925
5926 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5927 {
5928         // m blah #chatspike +b *!test@*4
5929         char* pars[128];
5930         char original[MAXBUF];
5931         strncpy(original,params,MAXBUF);
5932
5933         if (!strchr(params,' '))
5934         {
5935                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
5936                 return;
5937         }
5938
5939         int index = 0;
5940
5941         char* src = strtok(params," ");
5942         userrec* user = Find(src);
5943
5944         if (user)
5945         {
5946                 log(DEBUG,"Found user: %s",user->nick);
5947                 char* parameter = strtok(NULL," ");
5948                 while (parameter)
5949                 {
5950                         pars[index++] = parameter;
5951                         parameter = strtok(NULL," ");
5952                 }
5953
5954                 log(DEBUG,"Calling merge_mode2");
5955                 merge_mode2(pars,index,user);
5956         }
5957 }
5958
5959
5960 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5961 {
5962         char* nick = strtok(params," ");
5963         char* channel = strtok(NULL," :");
5964         char* reason = strtok(NULL,"\r\n");
5965         userrec* user = Find(nick);
5966         reason++;
5967         if (user)
5968         {
5969                 if (strcmp(reason,""))
5970                 {
5971                         del_channel(user,channel,reason,true);
5972                 }
5973                 else
5974                 {
5975                         del_channel(user,channel,NULL,true);
5976                 }
5977         }
5978 }
5979
5980 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5981 {
5982         char* src = strtok(params," ");
5983         char* nick = strtok(NULL," :");
5984         char* reason = strtok(NULL,"\r\n");
5985         char kreason[MAXBUF];
5986         reason++;
5987
5988         userrec* u = Find(nick);
5989         userrec* user = Find(src);
5990
5991         if ((user) && (u))
5992         {
5993                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
5994                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
5995                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
5996                 kill_link(u,kreason);
5997         }
5998 }
5999
6000 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6001 {
6002         char* nick = strtok(params," :");
6003         char* reason = strtok(NULL,"\r\n");
6004         reason++;
6005
6006         userrec* user = Find(nick);
6007
6008         if (user)
6009         {
6010                 if (strlen(reason)>MAXQUIT)
6011                 {
6012                         reason[MAXQUIT-1] = '\0';
6013                 }
6014
6015
6016                 WriteCommonExcept(user,"QUIT :%s",reason);
6017
6018                 user_hash::iterator iter = clientlist.find(user->nick);
6019
6020                 if (iter != clientlist.end())
6021                 {
6022                         log(DEBUG,"deleting user hash value %d",iter->second);
6023                         if ((iter->second) && (user->registered == 7)) {
6024                                 delete iter->second;
6025                         }
6026                         clientlist.erase(iter);
6027                 }
6028
6029                 purge_empty_chans();
6030         }
6031 }
6032
6033 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6034 {
6035         char* oldnick = strtok(params," ");
6036         char* newnick = strtok(NULL," ");
6037
6038         userrec* user = Find(oldnick);
6039
6040         if (user)
6041         {
6042                 WriteCommon(user,"NICK %s",newnick);
6043                 user = ReHashNick(user->nick, newnick);
6044                 if (!user) return;
6045                 if (!user->nick) return;
6046                 strncpy(user->nick, newnick,NICKMAX);
6047                 log(DEBUG,"new nick set: %s",user->nick);
6048         }
6049 }
6050
6051 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6052 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6053 {
6054         char* src = strtok(params," ");
6055         char* dest = strtok(NULL," ");
6056         char* channel = strtok(NULL," :");
6057         char* reason = strtok(NULL,"\r\n");
6058         reason++;
6059         userrec* s = Find(src);
6060         userrec* d = Find(dest);
6061         chanrec* c = FindChan(channel);
6062         if ((s) && (d) && (c))
6063         {
6064                 kick_channel(s,d,c,reason);
6065         }
6066 }
6067
6068 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6069 {
6070         char* who = strtok(params," :");
6071         char* text = strtok(NULL,"\r\n");
6072         text++;
6073         userrec* s = Find(who);
6074         if (s)
6075         {
6076                 WriteWallOps(s,true,text);
6077         }
6078 }
6079
6080
6081 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6082 {
6083         char* tm = strtok(params," ");
6084         char* nick = strtok(NULL," ");
6085         char* host = strtok(NULL," ");
6086         char* dhost = strtok(NULL," ");
6087         char* ident = strtok(NULL," ");
6088         char* modes = strtok(NULL," ");
6089         char* server = strtok(NULL," :");
6090         char* gecos = strtok(NULL,"\r\n");
6091         gecos++;
6092         modes++;
6093         time_t TS = atoi(tm);
6094         user_hash::iterator iter = clientlist.find(nick);
6095         if (iter != clientlist.end())
6096         {
6097                 // nick collision
6098                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6099                 char str[MAXBUF];
6100                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6101                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6102                 kill_link(iter->second,str);
6103         }
6104         clientlist[nick] = new userrec();
6105         // remote users have an fd of -1. This is so that our Write abstraction
6106         // routines know to route any messages to this record away to whatever server
6107         // theyre on.
6108         clientlist[nick]->fd = -1;
6109         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6110         strncpy(clientlist[nick]->host, host,160);
6111         strncpy(clientlist[nick]->dhost, dhost,160);
6112         strncpy(clientlist[nick]->server, server,256);
6113         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
6114         strncpy(clientlist[nick]->fullname, gecos,128);
6115         clientlist[nick]->signon = TS;
6116         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6117         clientlist[nick]->lastping = 1;
6118         clientlist[nick]->port = 0; // so is this...
6119         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6120         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6121         for (int i = 0; i < MAXCHANS; i++)
6122         {
6123                 clientlist[nick]->chans[i].channel = NULL;
6124                 clientlist[nick]->chans[i].uc_modes = 0;
6125         }
6126 }
6127
6128 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6129 {
6130         long tdiff = time(NULL) - atoi(params);
6131         if (tdiff)
6132                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6133 }
6134
6135 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6136 {
6137         char* nick = strtok(params," :");
6138         char* gecos = strtok(NULL,"\r\n");
6139
6140         userrec* user = Find(nick);
6141
6142         if (user)
6143                 strncpy(user->fullname,gecos,MAXBUF);
6144 }
6145
6146 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6147 {
6148         char* nick = strtok(params," ");
6149         char* host = strtok(NULL," ");
6150
6151         userrec* user = Find(nick);
6152
6153         if (user)
6154                 strncpy(user->dhost,host,160);
6155 }
6156
6157 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6158 {
6159         // %s %s %d %d
6160         // + test3.chatspike.net 7010 -2016508415
6161         char* servername = strtok(params," ");
6162         char* ipaddr = strtok(NULL," ");
6163         char* ipport = strtok(NULL," ");
6164         char* cookie = strtok(NULL," ");
6165         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
6166
6167
6168         bool conn_already = false;
6169         for (int i = 0; i < 32; i++)
6170         {
6171                 if (me[i] != NULL)
6172                 {
6173                         for (int j = 0; j < me[i]->connectors.size(); j++)
6174                         {
6175                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
6176                                 {
6177                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
6178                                         {
6179                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
6180                                                 conn_already = true;
6181                                         }
6182                                 }
6183                         }
6184                 }
6185         }
6186         if (!conn_already)
6187                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
6188 }
6189
6190 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6191 {
6192         char* server = strtok(params," ");
6193         char* data = strtok(NULL,"\r\n");
6194         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
6195         NetSendToOne(server,data);
6196 }
6197
6198 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6199 {
6200         // IMPORTANT NOTE
6201         // The J token currently has no timestamp - this needs looking at
6202         // because it will allow splitriding.
6203         char* nick = strtok(params," ");
6204         char* channel = strtok(NULL," ");
6205         userrec* user = Find(nick);
6206         while (channel)
6207         {
6208                 if ((user != NULL) && (strcmp(channel,"")))
6209                 {
6210                         char privilage = '\0';
6211                         if (channel[0] != '#')
6212                         {
6213                                 privilage = channel[0];
6214                                 channel++;
6215                         }
6216                         add_channel(user,channel,"",true);
6217
6218                         // now work out the privilages they should have on each channel
6219                         // and send the appropriate servermodes.
6220                         for (int i = 0; i != MAXCHANS; i++)
6221                         {
6222                                 if (user->chans[i].channel)
6223                                 {
6224                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6225                                         {
6226                                                 if (privilage == '@')
6227                                                 {
6228                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6229                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6230                                                 }
6231                                                 if (privilage == '%')
6232                                                 {
6233                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6234                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6235                                                 }
6236                                                 if (privilage == '+')
6237                                                 {
6238                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6239                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6240                                                 }
6241                                         }
6242                                 }
6243                         }
6244
6245                 }
6246                 channel = strtok(NULL," ");
6247         }
6248 }
6249
6250 void NetSendMyRoutingTable()
6251 {
6252         // send out a line saying what is reachable to us.
6253         // E.g. if A is linked to B C and D, send out:
6254         // $ A B C D
6255         // if its only linked to B and D send out:
6256         // $ A B D
6257         // if it has no links, dont even send out the line at all.
6258         char buffer[MAXBUF];
6259         sprintf(buffer,"$ %s",ServerName);
6260         bool sendit = false;
6261         for (int i = 0; i < 32; i++)
6262         {
6263                 if (me[i] != NULL)
6264                 {
6265                         for (int j = 0; j < me[i]->connectors.size(); j++)
6266                         {
6267                                 if (me[i]->connectors[j].GetState() != STATE_DISCONNECTED)
6268                                 {
6269                                         strncat(buffer," ",MAXBUF);
6270                                         strncat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
6271                                         sendit = true;
6272                                 }
6273                         }
6274                 }
6275         }
6276         if (sendit)
6277                 NetSendToAll(buffer);
6278 }
6279
6280 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6281 {
6282         log(DEBUG,"Storing routing table...");
6283         char* sourceserver = strtok(params," ");
6284         char* server = strtok(NULL," ");
6285         for (int i = 0; i < 32; i++)
6286         {
6287                 if (me[i] != NULL)
6288                 {
6289                         for (int j = 0; j < me[i]->connectors.size(); j++)
6290                         {
6291                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
6292                                 {
6293                                         me[i]->connectors[j].routes.clear();
6294                                         log(DEBUG,"Found entry for source server.");
6295                                         while (server)
6296                                         {
6297                                                 // store each route
6298                                                 me[i]->connectors[j].routes.push_back(server);
6299                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
6300                                                 server = strtok(NULL," ");
6301                                         }
6302                                         return;
6303                                 }
6304                         }
6305                 }
6306         }
6307         log(DEBUG,"Warning! routing table received from nonexistent server!");
6308 }
6309
6310
6311 void DoSplit(const char* params)
6312 {
6313         bool go_again = true;
6314         while (go_again)
6315         {
6316                 go_again = false;
6317                 for (int i = 0; i < 32; i++)
6318                 {
6319                         if (me[i] != NULL)
6320                         {
6321                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
6322                                 {
6323                                         if (!strcasecmp(j->GetServerName().c_str(),params))
6324                                         {
6325                                                 j->routes.clear();
6326                                                 j->CloseConnection();
6327                                                 me[i]->connectors.erase(j);
6328                                                 go_again = true;
6329                                                 break;
6330                                         }
6331                                 }
6332                         }
6333                 }
6334         }
6335         log(DEBUG,"Removed server. Will remove clients...");
6336         // iterate through the userlist and remove all users on this server.
6337         // because we're dealing with a mesh, we dont have to deal with anything
6338         // "down-route" from this server (nice huh)
6339         go_again = true;
6340         char reason[MAXBUF];
6341         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
6342         while (go_again)
6343         {
6344                 go_again = false;
6345                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
6346                 {
6347                         if (!strcasecmp(u->second->server,params))
6348                         {
6349                                 kill_link(u->second,reason);
6350                                 go_again = true;
6351                                 break;
6352                         }
6353                 }
6354         }
6355 }
6356
6357 // removes a server. Will NOT remove its users!
6358
6359 void RemoveServer(const char* name)
6360 {
6361         bool go_again = true;
6362         while (go_again)
6363         {
6364                 go_again = false;
6365                 for (int i = 0; i < 32; i++)
6366                 {
6367                         if (me[i] != NULL)
6368                         {
6369                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
6370                                 {
6371                                         if (!strcasecmp(j->GetServerName().c_str(),name))
6372                                         {
6373                                                 j->routes.clear();
6374                                                 j->CloseConnection();
6375                                                 me[i]->connectors.erase(j);
6376                                                 go_again = true;
6377                                                 break;
6378                                         }
6379                                 }
6380                         }
6381                 }
6382         }
6383 }
6384
6385 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6386 {
6387         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
6388         bool go_again = true;
6389         while (go_again)
6390         {
6391                 go_again = false;
6392                 for (int i = 0; i < 32; i++)
6393                 {
6394                         if (me[i] != NULL)
6395                         {
6396                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
6397                                 {
6398                                         if (!strcasecmp(j->GetServerName().c_str(),params))
6399                                         {
6400                                                 j->routes.clear();
6401                                                 j->CloseConnection();
6402                                                 me[i]->connectors.erase(j);
6403                                                 go_again = true;
6404                                                 break;
6405                                         }
6406                                 }
6407                         }
6408                 }
6409         }
6410         log(DEBUG,"Removed server. Will remove clients...");
6411         // iterate through the userlist and remove all users on this server.
6412         // because we're dealing with a mesh, we dont have to deal with anything
6413         // "down-route" from this server (nice huh)
6414         go_again = true;
6415         char reason[MAXBUF];
6416         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
6417         while (go_again)
6418         {
6419                 go_again = false;
6420                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
6421                 {
6422                         if (!strcasecmp(u->second->server,params))
6423                         {
6424                                 kill_link(u->second,reason);
6425                                 go_again = true;
6426                                 break;
6427                         }
6428                 }
6429         }
6430 }
6431
6432 long authcookie;
6433
6434
6435 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,char* ipaddr,int port)
6436 {
6437         char buffer[MAXBUF];
6438
6439         switch(token)
6440         {
6441                 // Y <TS>
6442                 // start netburst
6443                 case 'Y':
6444                         nb_start = time(NULL);
6445                         WriteOpers("Server %s is starting netburst.",udp_host);
6446                         // now broadcast this new servers address out to all servers that are linked to us,
6447                         // except the newcomer. They'll all attempt to connect back to it.
6448                         authcookie = rand()*rand();
6449                         snprintf(buffer,MAXBUF,"~ %d",authcookie);
6450                         NetSendToAll(buffer);
6451                 break;
6452                 // ~
6453                 // Store authcookie
6454                 // once stored, this authcookie permits other servers to log in
6455                 // without user or password, using it.
6456                 case '~':
6457                         auth_cookies.push_back(atoi(params));
6458                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
6459                 break;
6460                 // connect back to a server using an authcookie
6461                 case '+':
6462                         handle_plus(token,params,source,reply,udp_host);
6463                 break;
6464                 // routing table
6465                 case '$':
6466                         handle_dollar(token,params,source,reply,udp_host);
6467                 break;
6468                 // node unreachable - we cant route to a server, sooooo we slit it off.
6469                 // servers can generate these for themselves for an squit.
6470                 case '&':
6471                         handle_amp(token,params,source,reply,udp_host);
6472                 break;
6473                 // R <server> <data>
6474                 // redirect token, send all of <data> along to the given
6475                 // server as this server has been found to still have a route to it
6476                 case 'R':
6477                         handle_R(token,params,source,reply,udp_host);
6478                 break;
6479                 // ?
6480                 // ping
6481                 case '?':
6482                         reply->SendPacket("!",udp_host);
6483                 break;
6484                 // ?
6485                 // pong
6486                 case '!':
6487                 break;
6488                 // *
6489                 // no operation
6490                 case '*':
6491                 break;
6492                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6493                 // introduce remote client
6494                 case 'N':
6495                         handle_N(token,params,source,reply,udp_host);
6496                 break;
6497                 // a <NICK> :<GECOS>
6498                 // change GECOS (SETNAME)
6499                 case 'a':
6500                         handle_a(token,params,source,reply,udp_host);
6501                 break;
6502                 // b <NICK> :<HOST>
6503                 // change displayed host (SETHOST)
6504                 case 'b':
6505                         handle_b(token,params,source,reply,udp_host);
6506                 break;
6507                 // t <NICK> <CHANNEL> :<TOPIC>
6508                 // change a channel topic
6509                 case 't':
6510                         handle_t(token,params,source,reply,udp_host);
6511                 break;
6512                 // i <NICK> <CHANNEL>
6513                 // invite a user to a channel
6514                 case 'i':
6515                         handle_i(token,params,source,reply,udp_host);
6516                 break;
6517                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6518                 // kick a user from a channel
6519                 case 'k':
6520                         handle_k(token,params,source,reply,udp_host);
6521                 break;
6522                 // n <NICK> <NEWNICK>
6523                 // change nickname of client -- a server should only be able to
6524                 // change the nicknames of clients that reside on it unless
6525                 // they are ulined.
6526                 case 'n':
6527                         handle_n(token,params,source,reply,udp_host);
6528                 break;
6529                 // J <NICK> <CHANLIST>
6530                 // Join user to channel list, merge channel permissions
6531                 case 'J':
6532                         handle_J(token,params,source,reply,udp_host);
6533                 break;
6534                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6535                 // change channel topic (netburst only)
6536                 case 'T':
6537                         handle_T(token,params,source,reply,udp_host);
6538                 break;
6539                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6540                 // Server setting modes on an object
6541                 case 'M':
6542                         handle_M(token,params,source,reply,udp_host);
6543                 break;
6544                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6545                 // User setting modes on an object
6546                 case 'm':
6547                         handle_m(token,params,source,reply,udp_host);
6548                 break;
6549                 // P <SOURCE> <TARGET> :<TEXT>
6550                 // Send a private/channel message
6551                 case 'P':
6552                         handle_P(token,params,source,reply,udp_host);
6553                 break;
6554                 // V <SOURCE> <TARGET> :<TEXT>
6555                 // Send a private/channel notice
6556                 case 'V':
6557                         handle_V(token,params,source,reply,udp_host);
6558                 break;
6559                 // L <SOURCE> <CHANNEL> :<REASON>
6560                 // User parting a channel
6561                 case 'L':
6562                         handle_L(token,params,source,reply,udp_host);
6563                 break;
6564                 // Q <SOURCE> :<REASON>
6565                 // user quitting
6566                 case 'Q':
6567                         handle_Q(token,params,source,reply,udp_host);
6568                 break;
6569                 // K <SOURCE> <DEST> :<REASON>
6570                 // remote kill
6571                 case 'K':
6572                         handle_K(token,params,source,reply,udp_host);
6573                 break;
6574                 // @ <SOURCE> :<TEXT>
6575                 // wallops
6576                 case '@':
6577                         handle_AT(token,params,source,reply,udp_host);
6578                 break;
6579                 // F <TS>
6580                 // end netburst
6581                 case 'F':
6582                         WriteOpers("Server %s has completed netburst. (%d secs)",udp_host,time(NULL)-nb_start);
6583                         handle_F(token,params,source,reply,udp_host);
6584                         nb_start = 0;
6585                         // tell all the other servers to use this authcookie to connect back again
6586                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
6587                         snprintf(buffer,MAXBUF,"+ %s %s %d %d",udp_host,ipaddr,port,authcookie);
6588                         NetSendToAllExcept(udp_host,buffer);
6589                 break;
6590                 // X <reserved>
6591                 // Send netburst now
6592                 case 'X':
6593                         WriteOpers("Sending my netburst to %s",udp_host);
6594                         DoSync(source,udp_host);
6595                         WriteOpers("Send of netburst to %s completed",udp_host);
6596                         NetSendMyRoutingTable();
6597                 break;
6598                 // anything else
6599                 default:
6600                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6601                 break;
6602         }
6603 }
6604
6605
6606 void handle_link_packet(char* udp_msg, char* udp_host, serverrec *serv)
6607 {
6608         char response[10240];
6609         char token = udp_msg[0];
6610         char* params = udp_msg + 2;
6611         char finalparam[1024];
6612         strcpy(finalparam," :xxxx");
6613         if (strstr(udp_msg," :")) {
6614                 strncpy(finalparam,strstr(udp_msg," :"),1024);
6615         }
6616         if (token == '-') {
6617                 char* cookie = strtok(params," ");
6618                 char* servername = strtok(NULL," ");
6619                 char* serverdesc = finalparam+2;
6620
6621                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,udp_host);
6622
6623                 for (int u = 0; u < auth_cookies.size(); u++)
6624                 {
6625                         if (auth_cookies[u] == atoi(cookie))
6626                         {
6627                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
6628
6629
6630                                 for (int j = 0; j < 32; j++)
6631                                 {
6632                                         if (me[j] != NULL)
6633                                         {
6634                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
6635                                                 {
6636                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),udp_host))
6637                                                         {
6638                                                                 me[j]->connectors[k].SetServerName(servername);
6639                                                                 me[j]->connectors[k].SetDescription(serverdesc);
6640                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
6641                                                                 NetSendMyRoutingTable();
6642                                                                 return;
6643                                                         }
6644                                                 }
6645                                         }
6646                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",udp_host);
6647                                         return;
6648                                 }
6649
6650
6651                                 return;
6652                         }
6653                 }
6654                 // bad cookie, bad bad! go sit in the corner!
6655                 WriteOpers("Bad cookie from %s!",servername);
6656                 return;
6657         }
6658         else
6659         if (token == 'S') {
6660                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
6661                 char* servername = strtok(params," ");
6662                 char* password = strtok(NULL," ");
6663                 char* myport = strtok(NULL," ");
6664                 char* revision = strtok(NULL," ");
6665                 char* serverdesc = finalparam+2;
6666
6667                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,udp_host,atoi(myport));
6668
6669                 ircd_connector* cn = serv->FindHost(servername);
6670
6671                 if (cn)
6672                 {
6673                         WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName);
6674                         char buffer[MAXBUF];
6675                         sprintf(buffer,"E :Server %s already exists!",servername);
6676                         serv->SendPacket(buffer,udp_host);
6677                         RemoveServer(udp_host);
6678                         return;
6679                 }
6680
6681                 if (atoi(revision) != GetRevision())
6682                 {
6683                         WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision());
6684                         char buffer[MAXBUF];
6685                         sprintf(buffer,"E :Version number mismatch");
6686                         serv->SendPacket(buffer,udp_host);
6687                         RemoveServer(udp_host);
6688                         RemoveServer(servername);
6689                         return;
6690                 }
6691
6692                 for (int j = 0; j < serv->connectors.size(); j++)
6693                 {
6694                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),udp_host))
6695                         {
6696                                 serv->connectors[j].SetServerName(servername);
6697                                 serv->connectors[j].SetDescription(serverdesc);
6698                                 serv->connectors[j].SetServerPort(atoi(myport));
6699                         }
6700                 }
6701
6702
6703                 char Link_ServerName[1024];
6704                 char Link_IPAddr[1024];
6705                 char Link_Port[1024];
6706                 char Link_Pass[1024];
6707                 char Link_SendPass[1024];
6708                 int LinkPort = 0;
6709
6710                 // search for a corresponding <link> block in the config files
6711                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6712                 {
6713                         ConfValue("link","name",i,Link_ServerName,&config_f);
6714                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6715                         ConfValue("link","port",i,Link_Port,&config_f);
6716                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6717                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6718                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6719                         LinkPort = atoi(Link_Port);
6720                         if (!strcasecmp(Link_ServerName,servername))
6721                         {
6722                                 // we have a matching link line -
6723                                 // send a 'diminutive' server message back...
6724                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6725                                 serv->SendPacket(response,servername);
6726
6727                                 for (int t = 0; t < serv->connectors.size(); t++)
6728                                 {
6729                                         if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername))
6730                                         {
6731                                                 serv->connectors[t].SetState(STATE_CONNECTED);
6732                                         }
6733                                 }
6734
6735                                 return;
6736                         }
6737                 }
6738                 char buffer[MAXBUF];
6739                 sprintf(buffer,"E :Access is denied (no matching link block)");
6740                 serv->SendPacket(buffer,udp_host);
6741                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6742                 RemoveServer(udp_host);
6743                 RemoveServer(servername);
6744                 return;
6745         }
6746         else
6747         if (token == 's') {
6748                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6749                 char* servername = strtok(params," ");
6750                 char* password = strtok(NULL," ");
6751                 char* serverdesc = finalparam+2;
6752
6753                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6754                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6755                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6756                 // a connect, so put out an oper alert!
6757
6758                 // for now, just accept all, we'll fix that later.
6759                 WriteOpers("%s accepted our link credentials ",servername);
6760
6761                 char Link_ServerName[1024];
6762                 char Link_IPAddr[1024];
6763                 char Link_Port[1024];
6764                 char Link_Pass[1024];
6765                 char Link_SendPass[1024];
6766                 int LinkPort = 0;
6767
6768                 // search for a corresponding <link> block in the config files
6769                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6770                 {
6771                         ConfValue("link","name",i,Link_ServerName,&config_f);
6772                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6773                         ConfValue("link","port",i,Link_Port,&config_f);
6774                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6775                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6776                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6777                         LinkPort = atoi(Link_Port);
6778                         if (!strcasecmp(Link_ServerName,servername))
6779                         {
6780                                 // matching link at this end too, we're all done!
6781                                 // at this point we must begin key exchange and insert this
6782                                 // server into our 'active' table.
6783                                 for (int j = 0; j < 32; j++)
6784                                 {
6785                                         if (me[j] != NULL)
6786                                         {
6787                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
6788                                                 {
6789                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),udp_host))
6790                                                         {
6791                                                                 char buffer[MAXBUF];
6792                                                                 me[j]->connectors[k].SetDescription(serverdesc);
6793                                                                 me[j]->connectors[k].SetState(STATE_CONNECTED);
6794                                                                 sprintf(buffer,"X 0");
6795                                                                 serv->SendPacket(buffer,udp_host);
6796                                                                 DoSync(me[j],udp_host);
6797                                                                 NetSendMyRoutingTable();
6798                                                                 return;
6799                                                         }
6800                                                 }
6801                                         }
6802                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6803                                         return;
6804                                 }
6805                         }
6806                         else {
6807                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6808                         }
6809                 }
6810                 char buffer[MAXBUF];
6811                 sprintf(buffer,"E :Access is denied (no matching link block)");
6812                 serv->SendPacket(buffer,udp_host);
6813                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6814                 RemoveServer(udp_host);
6815                 RemoveServer(servername);
6816                 return;
6817         }
6818         else
6819         if (token == 'E') {
6820                 char* error_message = finalparam+2;
6821                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6822                 return;
6823         }
6824         else {
6825
6826                 serverrec* source_server = NULL;
6827
6828                 for (int j = 0; j < 32; j++)
6829                 {
6830                         if (me[j] != NULL)
6831                         {
6832                                 for (int x = 0; x < me[j]->connectors.size(); x++)
6833                                 {
6834                                         log(DEBUG,"Servers are: '%s' '%s'",udp_host,me[j]->connectors[x].GetServerName().c_str());
6835                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),udp_host))
6836                                         {
6837                                                 if (me[j]->connectors[x].GetState() == STATE_CONNECTED)
6838                                                 {
6839                                                         // found a valid ircd_connector.
6840                                                         process_restricted_commands(token,params,me[j],serv,udp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
6841                                                         return;
6842                                                 }
6843                                         }
6844                                 }
6845                         }
6846                 }
6847
6848                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",udp_host,token);
6849         }
6850 }
6851
6852 int reap_counter = 0;
6853
6854 int InspIRCd(void)
6855 {
6856         struct sockaddr_in client, server;
6857         char addrs[MAXBUF][255];
6858         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6859         socklen_t length;
6860         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6861         int selectResult = 0, selectResult2 = 0;
6862         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6863         char resolvedHost[MAXBUF];
6864         fd_set selectFds;
6865         struct timeval tv;
6866
6867         log_file = fopen("ircd.log","a+");
6868         if (!log_file)
6869         {
6870                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6871                 Exit(ERROR);
6872         }
6873
6874         log(DEBUG,"InspIRCd: startup: begin");
6875         log(DEBUG,"$Id$");
6876         if (geteuid() == 0)
6877         {
6878                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6879                 Exit(ERROR);
6880                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6881         }
6882         SetupCommandTable();
6883         log(DEBUG,"InspIRCd: startup: default command table set up");
6884
6885         ReadConfig();
6886         if (strcmp(DieValue,""))
6887         {
6888                 printf("WARNING: %s\n\n",DieValue);
6889                 exit(0);
6890         }
6891         log(DEBUG,"InspIRCd: startup: read config");
6892
6893         int count2 = 0, count3 = 0;
6894
6895         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6896         {
6897                 ConfValue("bind","port",count,configToken,&config_f);
6898                 ConfValue("bind","address",count,Addr,&config_f);
6899                 ConfValue("bind","type",count,Type,&config_f);
6900                 if (!strcmp(Type,"servers"))
6901                 {
6902                         char Default[MAXBUF];
6903                         strcpy(Default,"no");
6904                         ConfValue("bind","default",count,Default,&config_f);
6905                         if (strchr(Default,'y'))
6906                         {
6907                                 defaultRoute = count3;
6908                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6909                         }
6910                         me[count3] = new serverrec(ServerName,100L,false);
6911                         me[count3]->CreateListener(Addr,atoi(configToken));
6912                         count3++;
6913                 }
6914                 else
6915                 {
6916                         ports[count2] = atoi(configToken);
6917                         strcpy(addrs[count2],Addr);
6918                         count2++;
6919                 }
6920                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6921         }
6922         portCount = count2;
6923         UDPportCount = count3;
6924
6925         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6926
6927         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6928
6929         printf("\n");
6930
6931         /* BugFix By Craig! :p */
6932         count = 0;
6933         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6934         {
6935                 char modfile[MAXBUF];
6936                 ConfValue("module","name",count2,configToken,&config_f);
6937                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6938                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6939                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6940                 /* If The File Doesnt exist, Trying to load it
6941                  * Will Segfault the IRCd.. So, check to see if
6942                  * it Exists, Before Proceeding. */
6943                 if (FileExists(modfile))
6944                 {
6945                         factory[count] = new ircd_module(modfile);
6946                         if (factory[count]->LastError())
6947                         {
6948                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6949                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6950                                 Exit(ERROR);
6951                         }
6952                         if (factory[count]->factory)
6953                         {
6954                                 modules[count] = factory[count]->factory->CreateModule();
6955                                 /* save the module and the module's classfactory, if
6956                                  * this isnt done, random crashes can occur :/ */
6957                                 module_names.push_back(modfile);
6958                         }
6959                         else
6960                         {
6961                                 log(DEBUG,"Unable to load %s",modfile);
6962                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6963                                 Exit(ERROR);
6964                         }
6965                         /* Increase the Count */
6966                         count++;
6967                 }
6968                 else
6969                 {
6970                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6971                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6972                 }
6973         }
6974         MODCOUNT = count - 1;
6975         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6976
6977         printf("\nInspIRCd is now running!\n");
6978
6979         startup_time = time(NULL);
6980
6981         if (nofork)
6982         {
6983                 log(VERBOSE,"Not forking as -nofork was specified");
6984         }
6985         else
6986         {
6987                 if (DaemonSeed() == ERROR)
6988                 {
6989                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6990                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6991                         Exit(ERROR);
6992                 }
6993         }
6994
6995
6996         /* setup select call */
6997         FD_ZERO(&selectFds);
6998         log(DEBUG,"InspIRCd: startup: zero selects");
6999         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
7000
7001         for (count = 0; count < portCount; count++)
7002         {
7003                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
7004                 {
7005                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
7006                         return(ERROR);
7007                 }
7008                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
7009                 {
7010                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
7011                 }
7012                 else    /* well we at least bound to one socket so we'll continue */
7013                 {
7014                         boundPortCount++;
7015                 }
7016         }
7017
7018         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
7019
7020         /* if we didn't bind to anything then abort */
7021         if (boundPortCount == 0)
7022         {
7023                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
7024                 return (ERROR);
7025         }
7026
7027
7028         length = sizeof (client);
7029         char udp_msg[MAXBUF], udp_host[MAXBUF];
7030
7031         /* main loop, this never returns */
7032         for (;;)
7033         {
7034 #ifdef _POSIX_PRIORITY_SCHEDULING
7035                 sched_yield();
7036 #endif
7037
7038                 fd_set sfd;
7039                 timeval tval;
7040                 FD_ZERO(&sfd);
7041
7042                 user_hash::iterator count2 = clientlist.begin();
7043
7044                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
7045                 // them in a list, then reap the list every second or so.
7046                 if (reap_counter>300)
7047                 {
7048                         if (fd_reap.size() > 0)
7049                         {
7050                                 for( int n = 0; n < fd_reap.size(); n++)
7051                                 {
7052                                         Blocking(fd_reap[n]);
7053                                         close(fd_reap[n]);
7054                                         NonBlocking(fd_reap[n]);
7055                                 }
7056                         }
7057                         fd_reap.clear();
7058                         reap_counter=0;
7059                 }
7060                 reap_counter++;
7061
7062                 fd_set serverfds;
7063                 FD_ZERO(&serverfds);
7064                 timeval tvs;
7065
7066                 for (int x = 0; x != UDPportCount; x++)
7067                 {
7068                         FD_SET(me[x]->fd, &serverfds);
7069                 }
7070
7071                 tvs.tv_usec = 0;
7072                 tvs.tv_sec = 0;
7073
7074                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
7075                 if (servresult > 0)
7076                 {
7077                         for (int x = 0; x != UDPportCount; x++)
7078                         {
7079                                 if (FD_ISSET (me[x]->fd, &serverfds))
7080                                 {
7081                                         char remotehost[MAXBUF],resolved[MAXBUF];
7082                                         length = sizeof (client);
7083                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
7084                                         strncpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
7085                                         if(CleanAndResolve(resolved, remotehost) != TRUE)
7086                                         {
7087                                                 strncpy(resolved,remotehost,MAXBUF);
7088                                         }
7089                                         // add to this connections ircd_connector vector
7090                                         // *FIX* - we need the LOCAL port not the remote port in &client!
7091                                         me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
7092                                 }
7093                         }
7094                 }
7095
7096                 for (int x = 0; x < UDPportCount; x++)
7097                 {
7098                         std::deque<std::string> msgs;
7099                         msgs.clear();
7100                         if (me[x]->RecvPacket(msgs, udp_host))
7101                         {
7102                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
7103                                 {
7104                                         char udp_msg[MAXBUF];
7105                                         strncpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
7106                                         if (strlen(udp_msg)<1)
7107                                                 {
7108                                                 log(DEBUG,"Invalid string from %s [route%d]",udp_host,x);
7109                                                 break;
7110                                         }
7111                                         // during a netburst, send all data to all other linked servers
7112                                         if ((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
7113                                         {
7114                                                 NetSendToAllExcept(udp_host,udp_msg);
7115                                         }
7116                                         FOREACH_MOD OnPacketReceive(udp_msg);
7117                                         handle_link_packet(udp_msg, udp_host, me[x]);
7118                                 }
7119                                 goto label;
7120                         }
7121                 }
7122
7123
7124         while (count2 != clientlist.end())
7125         {
7126                 char data[10240];
7127                 tval.tv_usec = tval.tv_sec = 0;
7128                 FD_ZERO(&sfd);
7129                 int total_in_this_set = 0;
7130
7131                 user_hash::iterator xcount = count2;
7132                 user_hash::iterator endingiter = count2;
7133
7134                 if (!count2->second) break;
7135
7136                 if (count2->second)
7137                 if (count2->second->fd != 0)
7138                 {
7139                         // assemble up to 64 sockets into an fd_set
7140                         // to implement a pooling mechanism.
7141                         //
7142                         // This should be up to 64x faster than the
7143                         // old implementation.
7144                         while (total_in_this_set < 64)
7145                         {
7146                                 if (count2 != clientlist.end())
7147                                 {
7148                                         // we don't check the state of remote users.
7149                                         if (count2->second->fd > 0)
7150                                         {
7151                                                 FD_SET (count2->second->fd, &sfd);
7152
7153                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
7154                                                 // their connection class.
7155                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
7156                                                 {
7157                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
7158                                                         kill_link(count2->second,"Registration timeout");
7159                                                         goto label;
7160                                                 }
7161                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
7162                                                 {
7163                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
7164                                                         {
7165                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
7166                                                                 kill_link(count2->second,"Ping timeout");
7167                                                                 goto label;
7168                                                         }
7169                                                         Write(count2->second->fd,"PING :%s",ServerName);
7170                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
7171                                                         count2->second->lastping = 0;
7172                                                         count2->second->nping = time(NULL)+120;
7173                                                 }
7174                                         }
7175                                         count2++;
7176                                         total_in_this_set++;
7177                                 }
7178                                 else break;
7179                         }
7180
7181                         endingiter = count2;
7182                         count2 = xcount; // roll back to where we were
7183
7184                         int v = 0;
7185
7186                         tval.tv_usec = 0;
7187                         tval.tv_sec = 0;
7188                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
7189
7190                         // now loop through all of the items in this pool if any are waiting
7191                         //if (selectResult2 > 0)
7192                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
7193                         {
7194
7195 #ifdef _POSIX_PRIORITY_SCHEDULING
7196                                 sched_yield();
7197 #endif
7198
7199                                 result = EAGAIN;
7200                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
7201                                 {
7202                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
7203                                         memset(data, 0, 10240);
7204                                         result = read(count2a->second->fd, data, 10240);
7205
7206                                         if (result)
7207                                         {
7208                                                 if (result > 0)
7209                                                         log(DEBUG,"Read %d characters from socket",result);
7210                                                 userrec* current = count2a->second;
7211                                                 int currfd = current->fd;
7212                                                 char* l = strtok(data,"\n");
7213                                                 int floodlines = 0;
7214                                                 while (l)
7215                                                 {
7216                                                         floodlines++;
7217                                                         if ((floodlines > current->flood) && (current->flood != 0))
7218                                                         {
7219                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7220                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7221                                                                 kill_link(current,"Excess flood");
7222                                                                 goto label;
7223                                                         }
7224                                                         char sanitized[NetBufferSize];
7225                                                         memset(sanitized, 0, NetBufferSize);
7226                                                         int ptt = 0;
7227                                                         for (int pt = 0; pt < strlen(l); pt++)
7228                                                         {
7229                                                                 if (l[pt] != '\r')
7230                                                                 {
7231                                                                         sanitized[ptt++] = l[pt];
7232                                                                 }
7233                                                         }
7234                                                         sanitized[ptt] = '\0';
7235                                                         if (strlen(sanitized))
7236                                                         {
7237
7238
7239                                                                 // we're gonna re-scan to check if the nick is gone, after every
7240                                                                 // command - if it has, we're gonna bail
7241                                                                 bool find_again = false;
7242                                                                 process_buffer(sanitized,current);
7243
7244                                                                 // look for the user's record in case it's changed
7245                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
7246                                                                 {
7247                                                                         if (c2->second->fd == currfd)
7248                                                                         {
7249                                                                                 // found again, update pointer
7250                                                                                 current == c2->second;
7251                                                                                 find_again = true;
7252                                                                                 break;
7253                                                                         }
7254                                                                 }
7255                                                                 if (!find_again)
7256                                                                         goto label;
7257
7258                                                         }
7259                                                         l = strtok(NULL,"\n");
7260                                                 }
7261                                                 goto label;
7262                                         }
7263
7264                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
7265                                         {
7266                                                 log(DEBUG,"killing: %s",count2a->second->nick);
7267                                                 kill_link(count2a->second,strerror(errno));
7268                                                 goto label;
7269                                         }
7270                                 }
7271                                 // result EAGAIN means nothing read
7272                                 if (result == EAGAIN)
7273                                 {
7274                                 }
7275                                 else
7276                                 if (result == 0)
7277                                 {
7278                                         if (count2->second)
7279                                         {
7280                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
7281                                                 kill_link(count2a->second,"Client exited");
7282                                                 // must bail here? kill_link removes the hash, corrupting the iterator
7283                                                 log(DEBUG,"Bailing from client exit");
7284                                                 goto label;
7285                                         }
7286                                 }
7287                                 else if (result > 0)
7288                                 {
7289                                 }
7290                         }
7291                 }
7292                 for (int q = 0; q < total_in_this_set; q++)
7293                 {
7294                         // there is no iterator += operator :(
7295                         //if (count2 != clientlist.end())
7296                         //{
7297                                 count2++;
7298                         //}
7299                 }
7300         }
7301
7302         // set up select call
7303         for (count = 0; count < boundPortCount; count++)
7304         {
7305                 FD_SET (openSockfd[count], &selectFds);
7306         }
7307
7308         tv.tv_usec = 1;
7309         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
7310
7311         /* select is reporting a waiting socket. Poll them all to find out which */
7312         if (selectResult > 0)
7313         {
7314                 char target[MAXBUF], resolved[MAXBUF];
7315                 for (count = 0; count < boundPortCount; count++)
7316                 {
7317                         if (FD_ISSET (openSockfd[count], &selectFds))
7318                         {
7319                                 length = sizeof (client);
7320                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
7321
7322                                 address_cache::iterator iter = IP.find(client.sin_addr);
7323                                 bool iscached = false;
7324                                 if (iter == IP.end())
7325                                 {
7326                                         /* ip isn't in cache, add it */
7327                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7328                                         if(CleanAndResolve(resolved, target) != TRUE)
7329                                         {
7330                                                 strncpy(resolved,target,MAXBUF);
7331                                         }
7332                                         /* hostname now in 'target' */
7333                                         IP[client.sin_addr] = new string(resolved);
7334                                         /* hostname in cache */
7335                                 }
7336                                 else
7337                                 {
7338                                         /* found ip (cached) */
7339                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7340                                         iscached = true;
7341                                 }
7342
7343                                 if (incomingSockfd < 0)
7344                                 {
7345                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7346                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7347                                 }
7348                                 else
7349                                 {
7350                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7351                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7352                                 }
7353                                 goto label;
7354                         }
7355                 }
7356         }
7357         label:
7358         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7359 }
7360 /* not reached */
7361 close (incomingSockfd);
7362 }
7363