src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include "connection.h"
  45 #include "users.h"
  46 #include "servers.h"
  47 #include "ctables.h"
  48 #include "globals.h"
  49 #include "modules.h"
  50 #include "dynamic.h"
  51 #include "wildcard.h"
  52
  53 #ifdef GCC3
  54 #define nspace __gnu_cxx
  55 #else
  56 #define nspace std
  57 #endif
  58
  59 int LogLevel = DEFAULT;
  60 char ServerName[MAXBUF];
  61 char Network[MAXBUF];
  62 char ServerDesc[MAXBUF];
  63 char AdminName[MAXBUF];
  64 char AdminEmail[MAXBUF];
  65 char AdminNick[MAXBUF];
  66 char diepass[MAXBUF];
  67 char restartpass[MAXBUF];
  68 char motd[MAXBUF];
  69 char rules[MAXBUF];
  70 char list[MAXBUF];
  71 char PrefixQuit[MAXBUF];
  72 char DieValue[MAXBUF];
  73 int debugging =  0;
  74 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  75 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  76 int DieDelay  =  5;
  77 time_t startup_time = time(NULL);
  78 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  79 time_t nb_start = time(NULL);
  80
  81 extern vector<Module*> modules;
  82 std::vector<std::string> module_names;
  83 extern vector<ircd_module*> factory;
  84 std::vector<int> fd_reap;
  85
  86 extern int MODCOUNT;
  87
  88 bool nofork = false;
  89
  90 namespace nspace
  91 {
  92         template<> struct nspace::hash<in_addr>
  93         {
  94                 size_t operator()(const struct in_addr &a) const
  95                 {
  96                         size_t q;
  97                         memcpy(&q,&a,sizeof(size_t));
  98                         return q;
  99                 }
 100         };
 101
 102         template<> struct nspace::hash<string>
 103         {
 104                 size_t operator()(const string &s) const
 105                 {
 106                         char a[MAXBUF];
 107                         static struct hash<const char *> strhash;
 108                         strcpy(a,s.c_str());
 109                         strlower(a);
 110                         return strhash(a);
 111                 }
 112         };
 113 }
 114
 115
 116 struct StrHashComp
 117 {
 118
 119         bool operator()(const string& s1, const string& s2) const
 120         {
 121                 char a[MAXBUF],b[MAXBUF];
 122                 strcpy(a,s1.c_str());
 123                 strcpy(b,s2.c_str());
 124                 return (strcasecmp(a,b) == 0);
 125         }
 126
 127 };
 128
 129 struct InAddr_HashComp
 130 {
 131
 132         bool operator()(const in_addr &s1, const in_addr &s2) const
 133         {
 134                 size_t q;
 135                 size_t p;
 136
 137                 memcpy(&q,&s1,sizeof(size_t));
 138                 memcpy(&p,&s2,sizeof(size_t));
 139
 140                 return (q == p);
 141         }
 142
 143 };
 144
 145
 146 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 147 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 148 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 149 typedef std::deque<command_t> command_table;
 150
 151 serverrec* me[32];
 152 serverrec* servers[255];
 153
 154 FILE *log_file;
 155
 156 user_hash clientlist;
 157 chan_hash chanlist;
 158 user_hash whowas;
 159 command_table cmdlist;
 160 file_cache MOTD;
 161 file_cache RULES;
 162 address_cache IP;
 163
 164 ClassVector Classes;
 165
 166 struct linger linger = { 0 };
 167 char bannerBuffer[MAXBUF];
 168 int boundPortCount = 0;
 169 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 170 int defaultRoute = 0;
 171
 172 connection C;
 173
 174 long MyKey = C.GenKey();
 175
 176 /* prototypes */
 177
 178 int has_channel(userrec *u, chanrec *c);
 179 int usercount(chanrec *c);
 180 int usercount_i(chanrec *c);
 181 void update_stats_l(int fd,int data_out);
 182 char* Passwd(userrec *user);
 183 bool IsDenied(userrec *user);
 184 void AddWhoWas(userrec* u);
 185
 186 std::stringstream config_f(stringstream::in | stringstream::out);
 187
 188 void safedelete(userrec *p)
 189 {
 190         if (p)
 191         {
 192                 log(DEBUG,"deleting %s %s %s %s",p->nick,p->ident,p->dhost,p->fullname);
 193                 log(DEBUG,"safedelete(userrec*): pointer is safe to delete");
 194                 delete p;
 195                 p = NULL;
 196         }
 197         else
 198         {
 199                 log(DEBUG,"safedelete(userrec*): unsafe pointer operation squished");
 200         }
 201 }
 202
 203 void safedelete(chanrec *p)
 204 {
 205         if (p)
 206         {
 207                 delete p;
 208                 p = NULL;
 209                 log(DEBUG,"safedelete(chanrec*): pointer is safe to delete");
 210         }
 211         else
 212         {
 213                 log(DEBUG,"safedelete(chanrec*): unsafe pointer operation squished");
 214         }
 215 }
 216
 217
 218 void tidystring(char* str)
 219 {
 220         // strips out double spaces before a : parameter
 221
 222         char temp[MAXBUF];
 223         bool go_again = true;
 224
 225         if (!str)
 226         {
 227                 return;
 228         }
 229
 230         while ((str[0] == ' ') && (strlen(str)>0))
 231         {
 232                 str++;
 233         }
 234
 235         while (go_again)
 236         {
 237                 bool noparse = false;
 238                 int t = 0, a = 0;
 239                 go_again = false;
 240                 while (a < strlen(str))
 241                 {
 242                         if ((a<strlen(str)-1) && (noparse==false))
 243                         {
 244                                 if ((str[a] == ' ') && (str[a+1] == ' '))
 245                                 {
 246                                         log(DEBUG,"Tidied extra space out of string: %s",str);
 247                                         go_again = true;
 248                                         a++;
 249                                 }
 250                         }
 251
 252                         if (a<strlen(str)-1)
 253                         {
 254                                 if ((str[a] == ' ') && (str[a+1] == ':'))
 255                                 {
 256                                         noparse = true;
 257                                 }
 258                         }
 259
 260                         temp[t++] = str[a++];
 261                 }
 262                 temp[t] = '\0';
 263                 strncpy(str,temp,MAXBUF);
 264         }
 265 }
 266
 267 /* chop a string down to 512 characters and preserve linefeed (irc max
 268  * line length) */
 269
 270 void chop(char* str)
 271 {
 272   if (!str)
 273   {
 274         log(DEBUG,"ERROR! Null string passed to chop()!");
 275         return;
 276   }
 277   string temp = str;
 278   FOREACH_MOD OnServerRaw(temp,false);
 279   const char* str2 = temp.c_str();
 280   sprintf(str,"%s",str2);
 281
 282
 283   if (strlen(str) >= 512)
 284   {
 285         str[509] = '\r';
 286         str[510] = '\n';
 287         str[511] = '\0';
 288   }
 289 }
 290
 291
 292 std::string getservername()
 293 {
 294         return ServerName;
 295 }
 296
 297 std::string getserverdesc()
 298 {
 299         return ServerDesc;
 300 }
 301
 302 std::string getnetworkname()
 303 {
 304         return Network;
 305 }
 306
 307 std::string getadminname()
 308 {
 309         return AdminName;
 310 }
 311
 312 std::string getadminemail()
 313 {
 314         return AdminEmail;
 315 }
 316
 317 std::string getadminnick()
 318 {
 319         return AdminNick;
 320 }
 321
 322 void log(int level,char *text, ...)
 323 {
 324         char textbuffer[MAXBUF];
 325         va_list argsPtr;
 326         time_t rawtime;
 327         struct tm * timeinfo;
 328         if (level < LogLevel)
 329                 return;
 330
 331         time(&rawtime);
 332         timeinfo = localtime (&rawtime);
 333
 334         if (log_file)
 335         {
 336                 char b[MAXBUF];
 337                 va_start (argsPtr, text);
 338                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 339                 va_end(argsPtr);
 340                 strcpy(b,asctime(timeinfo));
 341                 b[strlen(b)-1] = ':';
 342                 fprintf(log_file,"%s %s\n",b,textbuffer);
 343                 if (nofork)
 344                 {
 345                         // nofork enabled? display it on terminal too
 346                         printf("%s %s\n",b,textbuffer);
 347                 }
 348         }
 349 }
 350
 351 void readfile(file_cache &F, const char* fname)
 352 {
 353   FILE* file;
 354   char linebuf[MAXBUF];
 355
 356   log(DEBUG,"readfile: loading %s",fname);
 357   F.clear();
 358   file =  fopen(fname,"r");
 359   if (file)
 360   {
 361         while (!feof(file))
 362         {
 363                 fgets(linebuf,sizeof(linebuf),file);
 364                 linebuf[strlen(linebuf)-1]='\0';
 365                 if (!strcmp(linebuf,""))
 366                 {
 367                         strcpy(linebuf,"  ");
 368                 }
 369                 if (!feof(file))
 370                 {
 371                         F.push_back(linebuf);
 372                 }
 373         }
 374         fclose(file);
 375   }
 376   else
 377   {
 378           log(DEBUG,"readfile: failed to load file: %s",fname);
 379   }
 380   log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 381 }
 382
 383 void ReadConfig(void)
 384 {
 385   char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF];
 386   ConnectClass c;
 387
 388   LoadConf(CONFIG_FILE,&config_f);
 389
 390   ConfValue("server","name",0,ServerName,&config_f);
 391   ConfValue("server","description",0,ServerDesc,&config_f);
 392   ConfValue("server","network",0,Network,&config_f);
 393   ConfValue("admin","name",0,AdminName,&config_f);
 394   ConfValue("admin","email",0,AdminEmail,&config_f);
 395   ConfValue("admin","nick",0,AdminNick,&config_f);
 396   ConfValue("files","motd",0,motd,&config_f);
 397   ConfValue("files","rules",0,rules,&config_f);
 398   ConfValue("power","diepass",0,diepass,&config_f);
 399   ConfValue("power","pause",0,pauseval,&config_f);
 400   ConfValue("power","restartpass",0,restartpass,&config_f);
 401   ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 402   ConfValue("die","value",0,DieValue,&config_f);
 403   ConfValue("options","loglevel",0,dbg,&config_f);
 404   ConfValue("options","netbuffersize",0,NB,&config_f);
 405   NetBufferSize = atoi(NB);
 406   if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 407   {
 408         log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 409         NetBufferSize = 10240;
 410   }
 411   if (!strcmp(dbg,"debug"))
 412         LogLevel = DEBUG;
 413   if (!strcmp(dbg,"verbose"))
 414         LogLevel = VERBOSE;
 415   if (!strcmp(dbg,"default"))
 416         LogLevel = DEFAULT;
 417   if (!strcmp(dbg,"sparse"))
 418         LogLevel = SPARSE;
 419   if (!strcmp(dbg,"none"))
 420         LogLevel = NONE;
 421   readfile(MOTD,motd);
 422   log(DEBUG,"Reading message of the day");
 423   readfile(RULES,rules);
 424   log(DEBUG,"Reading connect classes");
 425   Classes.clear();
 426   for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 427   {
 428         strcpy(Value,"");
 429         ConfValue("connect","allow",i,Value,&config_f);
 430         ConfValue("connect","timeout",i,timeout,&config_f);
 431         ConfValue("connect","flood",i,flood,&config_f);
 432         if (strcmp(Value,""))
 433         {
 434                 strcpy(c.host,Value);
 435                 c.type = CC_ALLOW;
 436                 strcpy(Value,"");
 437                 ConfValue("connect","password",i,Value,&config_f);
 438                 strcpy(c.pass,Value);
 439                 c.registration_timeout = 90; // default is 2 minutes
 440                 c.flood = atoi(flood);
 441                 if (atoi(timeout)>0)
 442                 {
 443                         c.registration_timeout = atoi(timeout);
 444                 }
 445                 Classes.push_back(c);
 446                 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 447         }
 448         else
 449         {
 450                 ConfValue("connect","deny",i,Value,&config_f);
 451                 strcpy(c.host,Value);
 452                 c.type = CC_DENY;
 453                 Classes.push_back(c);
 454                 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 455         }
 456
 457   }
 458 }
 459
 460 void Blocking(int s)
 461 {
 462   int flags;
 463   log(DEBUG,"Blocking: %d",s);
 464   flags = fcntl(s, F_GETFL, 0);
 465   fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
 466 }
 467
 468 void NonBlocking(int s)
 469 {
 470   int flags;
 471   log(DEBUG,"NonBlocking: %d",s);
 472   flags = fcntl(s, F_GETFL, 0);
 473   //fcntl(s, F_SETFL, O_NONBLOCK);
 474   fcntl(s, F_SETFL, flags | O_NONBLOCK);
 475 }
 476
 477
 478 int CleanAndResolve (char *resolvedHost, const char *unresolvedHost)
 479 {
 480   struct hostent *hostPtr = NULL;
 481   struct in_addr addr;
 482
 483   memset (resolvedHost, '\0',MAXBUF);
 484   if(unresolvedHost == NULL)
 485         return(ERROR);
 486   if ((inet_aton(unresolvedHost,&addr)) == 0)
 487         return(ERROR);
 488   hostPtr = gethostbyaddr ((char *)&addr.s_addr,sizeof(addr.s_addr),AF_INET);
 489   if (hostPtr != NULL)
 490         snprintf(resolvedHost,MAXBUF,"%s",hostPtr->h_name);
 491   else
 492         snprintf(resolvedHost,MAXBUF,"%s",unresolvedHost);
 493   return (TRUE);
 494 }
 495
 496 /* write formatted text to a socket, in same format as printf */
 497
 498 void Write(int sock,char *text, ...)
 499 {
 500   if (!text)
 501   {
 502         log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 503         return;
 504   }
 505   char textbuffer[MAXBUF];
 506   va_list argsPtr;
 507   char tb[MAXBUF];
 508
 509   va_start (argsPtr, text);
 510   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 511   va_end(argsPtr);
 512   sprintf(tb,"%s\r\n",textbuffer);
 513   chop(tb);
 514   if (sock != -1)
 515   {
 516         write(sock,tb,strlen(tb));
 517         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 518   }
 519 }
 520
 521 /* write a server formatted numeric response to a single socket */
 522
 523 void WriteServ(int sock, char* text, ...)
 524 {
 525   if (!text)
 526   {
 527         log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 528         return;
 529   }
 530   char textbuffer[MAXBUF],tb[MAXBUF];
 531   va_list argsPtr;
 532   va_start (argsPtr, text);
 533
 534   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 535   va_end(argsPtr);
 536   sprintf(tb,":%s %s\r\n",ServerName,textbuffer);
 537   chop(tb);
 538   if (sock != -1)
 539   {
 540         write(sock,tb,strlen(tb));
 541         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 542   }
 543 }
 544
 545 /* write text from an originating user to originating user */
 546
 547 void WriteFrom(int sock, userrec *user,char* text, ...)
 548 {
 549   if ((!text) || (!user))
 550   {
 551         log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 552         return;
 553   }
 554   char textbuffer[MAXBUF],tb[MAXBUF];
 555   va_list argsPtr;
 556   va_start (argsPtr, text);
 557
 558   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 559   va_end(argsPtr);
 560   sprintf(tb,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 561   chop(tb);
 562   if (sock != -1)
 563   {
 564         write(sock,tb,strlen(tb));
 565         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 566   }
 567 }
 568
 569 /* write text to an destination user from a source user (e.g. user privmsg) */
 570
 571 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 572 {
 573         if ((!dest) || (!data))
 574         {
 575                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 576                 return;
 577         }
 578         char textbuffer[MAXBUF],tb[MAXBUF];
 579         va_list argsPtr;
 580         va_start (argsPtr, data);
 581         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 582         va_end(argsPtr);
 583         chop(tb);
 584
 585         // if no source given send it from the server.
 586         if (!source)
 587         {
 588                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 589         }
 590         else
 591         {
 592                 WriteFrom(dest->fd,source,"%s",textbuffer);
 593         }
 594 }
 595
 596 /* write formatted text from a source user to all users on a channel
 597  * including the sender (NOT for privmsg, notice etc!) */
 598
 599 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 600 {
 601         if ((!Ptr) || (!user) || (!text))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 610         va_end(argsPtr);
 611         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 612         {
 613                 if (has_channel(i->second,Ptr))
 614                 {
 615                         WriteTo(user,i->second,"%s",textbuffer);
 616                 }
 617         }
 618 }
 619
 620 /* write formatted text from a source user to all users on a channel
 621  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 622  * users on remote servers */
 623
 624 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 625 {
 626         if ((!Ptr) || (!text))
 627         {
 628                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 629                 return;
 630         }
 631         char textbuffer[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, text);
 634         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 635         va_end(argsPtr);
 636         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 637         {
 638                 if (has_channel(i->second,Ptr))
 639                 {
 640                         if (i->second->fd != -1)
 641                         {
 642                                 if (!user)
 643                                 {
 644                                         WriteServ(i->second->fd,"%s",textbuffer);
 645                                 }
 646                                 else
 647                                 {
 648                                         WriteTo(user,i->second,"%s",textbuffer);
 649                                 }
 650                         }
 651                 }
 652         }
 653 }
 654
 655
 656 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 657 {
 658         if ((!Ptr) || (!user) || (!text))
 659         {
 660                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 661                 return;
 662         }
 663         char textbuffer[MAXBUF];
 664         va_list argsPtr;
 665         va_start (argsPtr, text);
 666         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 667         va_end(argsPtr);
 668         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 669         {
 670                 if (i->second)
 671                 {
 672                         if (has_channel(i->second,Ptr))
 673                         {
 674                                 WriteServ(i->second->fd,"%s",textbuffer);
 675                         }
 676                 }
 677         }
 678 }
 679
 680
 681 /* write formatted text from a source user to all users on a channel except
 682  * for the sender (for privmsg etc) */
 683
 684 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 685 {
 686         if ((!Ptr) || (!user) || (!text))
 687         {
 688                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 689                 return;
 690         }
 691         char textbuffer[MAXBUF];
 692         va_list argsPtr;
 693         va_start (argsPtr, text);
 694         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 695         va_end(argsPtr);
 696
 697         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 698         {
 699                 if (i->second)
 700                 {
 701                         if (has_channel(i->second,Ptr) && (user != i->second))
 702                         {
 703                                 WriteTo(user,i->second,"%s",textbuffer);
 704                         }
 705                 }
 706         }
 707 }
 708
 709 int c_count(userrec* u)
 710 {
 711         int z = 0;
 712         for (int i =0; i != MAXCHANS; i++)
 713                 if (u->chans[i].channel != NULL)
 714                         z++;
 715         return z;
 716
 717 }
 718
 719 /* return 0 or 1 depending if users u and u2 share one or more common channels
 720  * (used by QUIT, NICK etc which arent channel specific notices) */
 721
 722 int common_channels(userrec *u, userrec *u2)
 723 {
 724         int i = 0;
 725         int z = 0;
 726
 727         if ((!u) || (!u2))
 728         {
 729                 log(DEFAULT,"*** BUG *** common_channels was given an invalid parameter");
 730                 return 0;
 731         }
 732         for (int i = 0; i != MAXCHANS; i++)
 733         {
 734                 for (z = 0; z != MAXCHANS; z++)
 735                 {
 736                         if ((u->chans[i].channel != NULL) && (u2->chans[z].channel != NULL))
 737                         {
 738                                 if ((u->chans[i].channel == u2->chans[z].channel) && (u->chans[i].channel) && (u2->chans[z].channel) && (u->registered == 7) && (u2->registered == 7))
 739                                 {
 740                                         if ((c_count(u)) && (c_count(u2)))
 741                                         {
 742                                                 return 1;
 743                                         }
 744                                 }
 745                         }
 746                 }
 747         }
 748         return 0;
 749 }
 750
 751 /* write a formatted string to all users who share at least one common
 752  * channel, including the source user e.g. for use in NICK */
 753
 754 void WriteCommon(userrec *u, char* text, ...)
 755 {
 756         if (!u)
 757         {
 758                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 759                 return;
 760         }
 761
 762         if (u->registered != 7) {
 763                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 764                 return;
 765         }
 766
 767         char textbuffer[MAXBUF];
 768         va_list argsPtr;
 769         va_start (argsPtr, text);
 770         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 771         va_end(argsPtr);
 772
 773         WriteFrom(u->fd,u,"%s",textbuffer);
 774
 775         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 776         {
 777                 if (i->second)
 778                 {
 779                         if (common_channels(u,i->second) && (i->second != u))
 780                         {
 781                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 782                         }
 783                 }
 784         }
 785 }
 786
 787 /* write a formatted string to all users who share at least one common
 788  * channel, NOT including the source user e.g. for use in QUIT */
 789
 790 void WriteCommonExcept(userrec *u, char* text, ...)
 791 {
 792         if (!u)
 793         {
 794                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 795                 return;
 796         }
 797
 798         if (u->registered != 7) {
 799                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 800                 return;
 801         }
 802
 803         char textbuffer[MAXBUF];
 804         va_list argsPtr;
 805         va_start (argsPtr, text);
 806         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 807         va_end(argsPtr);
 808
 809         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 810         {
 811                 if (i->second)
 812                 {
 813                         if ((common_channels(u,i->second)) && (u != i->second))
 814                         {
 815                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 816                         }
 817                 }
 818         }
 819 }
 820
 821 void WriteOpers(char* text, ...)
 822 {
 823         if (!text)
 824         {
 825                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 826                 return;
 827         }
 828
 829         char textbuffer[MAXBUF];
 830         va_list argsPtr;
 831         va_start (argsPtr, text);
 832         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 833         va_end(argsPtr);
 834
 835         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 836         {
 837                 if (i->second)
 838                 {
 839                         if (strchr(i->second->modes,'o'))
 840                         {
 841                                 if (strchr(i->second->modes,'s'))
 842                                 {
 843                                         // send server notices to all with +s
 844                                         // (TODO: needs SNOMASKs)
 845                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 846                                 }
 847                         }
 848                 }
 849         }
 850 }
 851
 852 // returns TRUE of any users on channel C occupy server 'servername'.
 853
 854 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 855 {
 856         log(DEBUG,"ChanAnyOnThisServer");
 857         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 858         {
 859                 if (has_channel(i->second,c))
 860                 {
 861                         if (!strcasecmp(i->second->server,servername))
 862                         {
 863                                 return true;
 864                         }
 865                 }
 866         }
 867         return false;
 868 }
 869
 870 // returns true if user 'u' shares any common channels with any users on server 'servername'
 871
 872 bool CommonOnThisServer(userrec* u,char* servername)
 873 {
 874         log(DEBUG,"ChanAnyOnThisServer");
 875         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 876         {
 877                 if ((common_channels(u,i->second)) && (u != i->second))
 878                 {
 879                         if (!strcasecmp(i->second->server,servername))
 880                         {
 881                                 return true;
 882                         }
 883                 }
 884         }
 885         return false;
 886 }
 887
 888
 889
 890 bool hasumode(userrec* user, char mode)
 891 {
 892         if (user)
 893         {
 894                 return (strchr(user->modes,mode)>0);
 895         }
 896         else return false;
 897 }
 898
 899 void WriteMode(const char* modes, int flags, const char* text, ...)
 900 {
 901         if ((!text) || (!modes) || (!flags))
 902         {
 903                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
 904                 return;
 905         }
 906
 907         char textbuffer[MAXBUF];
 908         va_list argsPtr;
 909         va_start (argsPtr, text);
 910         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 911         va_end(argsPtr);
 912
 913         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 914         {
 915                 if (i->second)
 916                 {
 917                         bool send_to_user = false;
 918
 919                         if (flags == WM_AND)
 920                         {
 921                                 send_to_user = true;
 922                                 for (int n = 0; n < strlen(modes); n++)
 923                                 {
 924                                         if (!hasumode(i->second,modes[n]))
 925                                         {
 926                                                 send_to_user = false;
 927                                                 break;
 928                                         }
 929                                 }
 930                         }
 931                         else if (flags == WM_OR)
 932                         {
 933                                 send_to_user = false;
 934                                 for (int n = 0; n < strlen(modes); n++)
 935                                 {
 936                                         if (hasumode(i->second,modes[n]))
 937                                         {
 938                                                 send_to_user = true;
 939                                                 break;
 940                                         }
 941                                 }
 942                         }
 943
 944                         if (send_to_user)
 945                         {
 946                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 947                         }
 948                 }
 949         }
 950 }
 951
 952 void WriteWallOps(userrec *source, char* text, ...)
 953 {
 954         if ((!text) || (!source))
 955         {
 956                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 957                 return;
 958         }
 959
 960         int i = 0;
 961         char textbuffer[MAXBUF];
 962         va_list argsPtr;
 963         va_start (argsPtr, text);
 964         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 965         va_end(argsPtr);
 966
 967         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 968         {
 969                 if (i->second)
 970                 {
 971                         if (strchr(i->second->modes,'w'))
 972                         {
 973                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
 974                         }
 975                 }
 976         }
 977 }
 978
 979 /* convert a string to lowercase. Note following special circumstances
 980  * taken from RFC 1459. Many "official" server branches still hold to this
 981  * rule so i will too;
 982  *
 983  *  Because of IRC's scandanavian origin, the characters {}| are
 984  *  considered to be the lower case equivalents of the characters []\,
 985  *  respectively. This is a critical issue when determining the
 986  *  equivalence of two nicknames.
 987  */
 988
 989 void strlower(char *n)
 990 {
 991         if (!n)
 992         {
 993                 return;
 994         }
 995         for (int i = 0; i != strlen(n); i++)
 996         {
 997                 n[i] = tolower(n[i]);
 998                 if (n[i] == '[')
 999                         n[i] = '{';
1000                 if (n[i] == ']')
1001                         n[i] = '}';
1002                 if (n[i] == '\\')
1003                         n[i] = '|';
1004         }
1005 }
1006
1007 /* verify that a user's ident and nickname is valid */
1008
1009 int isident(const char* n)
1010 {
1011         char v[MAXBUF];
1012         if (!n)
1013
1014         {
1015                 return 0;
1016         }
1017         if (!strcmp(n,""))
1018         {
1019                 return 0;
1020         }
1021         for (int i = 0; i != strlen(n); i++)
1022         {
1023                 if ((n[i] < 33) || (n[i] > 125))
1024                 {
1025                         return 0;
1026                 }
1027                 /* can't occur ANYWHERE in an Ident! */
1028                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1029                 {
1030                         return 0;
1031                 }
1032         }
1033         return 1;
1034 }
1035
1036
1037 int isnick(const char* n)
1038 {
1039         int i = 0;
1040         char v[MAXBUF];
1041         if (!n)
1042         {
1043                 return 0;
1044         }
1045         if (!strcmp(n,""))
1046         {
1047                 return 0;
1048         }
1049         if (strlen(n) > NICKMAX-1)
1050         {
1051                 return 0;
1052         }
1053         for (int i = 0; i != strlen(n); i++)
1054         {
1055                 if ((n[i] < 33) || (n[i] > 125))
1056                 {
1057                         return 0;
1058                 }
1059                 /* can't occur ANYWHERE in a nickname! */
1060                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1061                 {
1062                         return 0;
1063                 }
1064                 /* can't occur as the first char of a nickname... */
1065                 if ((strchr("0123456789",n[i])) && (!i))
1066                 {
1067                         return 0;
1068                 }
1069         }
1070         return 1;
1071 }
1072
1073 /* Find a user record by nickname and return a pointer to it */
1074
1075 userrec* Find(string nick)
1076 {
1077         user_hash::iterator iter = clientlist.find(nick);
1078
1079         if (iter == clientlist.end())
1080                 /* Couldn't find it */
1081                 return NULL;
1082
1083         return iter->second;
1084 }
1085
1086 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
1087 {
1088         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1089         {
1090                 if (i->second)
1091                 {
1092                         if (i->second->fd == fd)
1093                         {
1094                                 i->second->bytes_out+=data_out;
1095                                 i->second->cmds_out++;
1096                         }
1097                 }
1098         }
1099 }
1100
1101
1102 /* find a channel record by channel name and return a pointer to it */
1103
1104 chanrec* FindChan(const char* chan)
1105 {
1106         if (!chan)
1107         {
1108                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1109                 return NULL;
1110         }
1111
1112         chan_hash::iterator iter = chanlist.find(chan);
1113
1114         if (iter == chanlist.end())
1115                 /* Couldn't find it */
1116                 return NULL;
1117
1118         return iter->second;
1119 }
1120
1121
1122 void purge_empty_chans(void)
1123 {
1124         int go_again = 1, purge = 0;
1125
1126         while (go_again)
1127         {
1128                 go_again = 0;
1129                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1130                 {
1131                         if (i->second) {
1132                                 if (!usercount(i->second))
1133                                 {
1134                                         /* kill the record */
1135                                         if (i != chanlist.end())
1136                                         {
1137                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1138                                                 delete i->second;
1139                                                 chanlist.erase(i);
1140                                                 go_again = 1;
1141                                                 purge++;
1142                                                 break;
1143                                         }
1144                                 }
1145                                 else
1146                                 {
1147                                         log(DEBUG,"skipped purge for %s",i->second->name);
1148                                 }
1149                         }
1150                 }
1151         }
1152         log(DEBUG,"completed channel purge, killed %d",purge);
1153 }
1154
1155 /* returns the status character for a given user on a channel, e.g. @ for op,
1156  * % for halfop etc. If the user has several modes set, the highest mode
1157  * the user has must be returned. */
1158
1159 char* cmode(userrec *user, chanrec *chan)
1160 {
1161         if ((!user) || (!chan))
1162         {
1163                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1164                 return "";
1165         }
1166
1167         int i;
1168         for (int i = 0; i != MAXCHANS; i++)
1169         {
1170                 if ((user->chans[i].channel == chan) && (chan != NULL))
1171                 {
1172                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1173                         {
1174                                 return "@";
1175                         }
1176                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1177                         {
1178                                 return "%";
1179                         }
1180                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1181                         {
1182                                 return "+";
1183                         }
1184                         return "";
1185                 }
1186         }
1187 }
1188
1189 char scratch[MAXBUF];
1190 char sparam[MAXBUF];
1191
1192 char* chanmodes(chanrec *chan)
1193 {
1194         if (!chan)
1195         {
1196                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1197                 strcpy(scratch,"");
1198                 return scratch;
1199         }
1200
1201         strcpy(scratch,"");
1202         strcpy(sparam,"");
1203         if (chan->noexternal)
1204         {
1205                 strncat(scratch,"n",MAXMODES);
1206         }
1207         if (chan->topiclock)
1208         {
1209                 strncat(scratch,"t",MAXMODES);
1210         }
1211         if (strcmp(chan->key,""))
1212         {
1213                 strncat(scratch,"k",MAXMODES);
1214         }
1215         if (chan->limit)
1216         {
1217                 strncat(scratch,"l",MAXMODES);
1218         }
1219         if (chan->inviteonly)
1220         {
1221                 strncat(scratch,"i",MAXMODES);
1222         }
1223         if (chan->moderated)
1224         {
1225                 strncat(scratch,"m",MAXMODES);
1226         }
1227         if (chan->secret)
1228         {
1229                 strncat(scratch,"s",MAXMODES);
1230         }
1231         if (chan->c_private)
1232         {
1233                 strncat(scratch,"p",MAXMODES);
1234         }
1235         if (strcmp(chan->key,""))
1236         {
1237                 strncat(sparam,chan->key,MAXBUF);
1238         }
1239         if (chan->limit)
1240         {
1241                 char foo[24];
1242                 sprintf(foo," %d",chan->limit);
1243                 strncat(sparam,foo,MAXBUF);
1244         }
1245         if (strlen(chan->custom_modes))
1246         {
1247                 strncat(scratch,chan->custom_modes,MAXMODES);
1248                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1249                 {
1250                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1251                         if (extparam != "")
1252                         {
1253                                 strncat(sparam," ",MAXBUF);
1254                                 strncat(sparam,extparam.c_str(),MAXBUF);
1255                         }
1256                 }
1257         }
1258         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1259         strncat(scratch,sparam,MAXMODES);
1260         return scratch;
1261 }
1262
1263 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1264  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1265  * highest mode the user has must be returned. */
1266
1267 int cstatus(userrec *user, chanrec *chan)
1268 {
1269         if ((!chan) || (!user))
1270         {
1271                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1272                 return 0;
1273         }
1274
1275         for (int i = 0; i != MAXCHANS; i++)
1276         {
1277                 if ((user->chans[i].channel == chan) && (chan != NULL))
1278                 {
1279                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1280                         {
1281                                 return STATUS_OP;
1282                         }
1283                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1284                         {
1285                                 return STATUS_HOP;
1286                         }
1287                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1288                         {
1289                                 return STATUS_VOICE;
1290                         }
1291                         return STATUS_NORMAL;
1292                 }
1293         }
1294 }
1295
1296
1297 /* compile a userlist of a channel into a string, each nick seperated by
1298  * spaces and op, voice etc status shown as @ and + */
1299
1300 void userlist(userrec *user,chanrec *c)
1301 {
1302         if ((!c) || (!user))
1303         {
1304                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1305                 return;
1306         }
1307
1308         sprintf(list,"353 %s = %s :", user->nick, c->name);
1309         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1310         {
1311                 if (has_channel(i->second,c))
1312                 {
1313                         if (isnick(i->second->nick))
1314                         {
1315                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1316                                 {
1317                                         /* user is +i, and source not on the channel, does not show
1318                                          * nick in NAMES list */
1319                                         continue;
1320                                 }
1321                                 strcat(list,cmode(i->second,c));
1322                                 strcat(list,i->second->nick);
1323                                 strcat(list," ");
1324                                 if (strlen(list)>(480-NICKMAX))
1325                                 {
1326                                         /* list overflowed into
1327                                          * multiple numerics */
1328                                         WriteServ(user->fd,list);
1329                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1330                                 }
1331                         }
1332                 }
1333         }
1334         /* if whats left in the list isnt empty, send it */
1335         if (list[strlen(list)-1] != ':')
1336         {
1337                 WriteServ(user->fd,list);
1338         }
1339 }
1340
1341 /* return a count of the users on a specific channel accounting for
1342  * invisible users who won't increase the count. e.g. for /LIST */
1343
1344 int usercount_i(chanrec *c)
1345 {
1346         int i = 0;
1347         int count = 0;
1348
1349         if (!c)
1350         {
1351                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1352                 return 0;
1353         }
1354
1355         strcpy(list,"");
1356         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1357         {
1358                 if (i->second)
1359                 {
1360                         if (has_channel(i->second,c))
1361                         {
1362                                 if (isnick(i->second->nick))
1363                                 {
1364                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1365                                         {
1366                                                 /* user is +i, and source not on the channel, does not show
1367                                                  * nick in NAMES list */
1368                                                 continue;
1369                                         }
1370                                         count++;
1371                                 }
1372                         }
1373                 }
1374         }
1375         log(DEBUG,"usercount_i: %s %d",c->name,count);
1376         return count;
1377 }
1378
1379
1380 int usercount(chanrec *c)
1381 {
1382         int i = 0;
1383         int count = 0;
1384
1385         if (!c)
1386         {
1387                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1388                 return 0;
1389         }
1390
1391         strcpy(list,"");
1392         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1393         {
1394                 if (i->second)
1395                 {
1396                         if (has_channel(i->second,c))
1397                         {
1398                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1399                                 {
1400                                         count++;
1401                                 }
1402                         }
1403                 }
1404         }
1405         log(DEBUG,"usercount: %s %d",c->name,count);
1406         return count;
1407 }
1408
1409
1410 /* add a channel to a user, creating the record for it if needed and linking
1411  * it to the user record */
1412
1413 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1414 {
1415         if ((!user) || (!cn))
1416         {
1417                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1418                 return 0;
1419         }
1420
1421         int i = 0;
1422         chanrec* Ptr;
1423         int created = 0;
1424         char cname[MAXBUF];
1425
1426         strncpy(cname,cn,MAXBUF);
1427
1428         // we MUST declare this wherever we use FOREACH_RESULT
1429         int MOD_RESULT = 0;
1430
1431         if (strlen(cname) > CHANMAX-1)
1432         {
1433                 cname[CHANMAX-1] = '\0';
1434         }
1435
1436         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1437
1438         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1439         {
1440                 return NULL; // already on the channel!
1441         }
1442
1443
1444         if (!FindChan(cname))
1445         {
1446                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1447                 if (MOD_RESULT) {
1448                         return NULL;
1449                 }
1450
1451                 /* create a new one */
1452                 log(DEBUG,"add_channel: creating: %s",cname);
1453                 {
1454                         chanlist[cname] = new chanrec();
1455
1456                         strcpy(chanlist[cname]->name, cname);
1457                         chanlist[cname]->topiclock = 1;
1458                         chanlist[cname]->noexternal = 1;
1459                         chanlist[cname]->created = time(NULL);
1460                         strcpy(chanlist[cname]->topic, "");
1461                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1462                         chanlist[cname]->topicset = 0;
1463                         Ptr = chanlist[cname];
1464                         log(DEBUG,"add_channel: created: %s",cname);
1465                         /* set created to 2 to indicate user
1466                          * is the first in the channel
1467                          * and should be given ops */
1468                         created = 2;
1469                 }
1470         }
1471         else
1472         {
1473                 /* channel exists, just fish out a pointer to its struct */
1474                 Ptr = FindChan(cname);
1475                 if (Ptr)
1476                 {
1477                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1478
1479                         // the override flag allows us to bypass channel modes
1480                         // and bans (used by servers)
1481                         if (!override)
1482                         {
1483                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1484                                 if (MOD_RESULT) {
1485                                         return NULL;
1486                                 }
1487
1488                                 if (strcmp(Ptr->key,""))
1489                                 {
1490                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1491                                         if (!key)
1492                                         {
1493                                                 log(DEBUG,"add_channel: no key given in JOIN");
1494                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1495                                                 return NULL;
1496                                         }
1497                                         else
1498                                         {
1499                                                 log(DEBUG,"key at %p is %s",key,key);
1500                                                 if (strcasecmp(key,Ptr->key))
1501                                                 {
1502                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1503                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1504                                                         return NULL;
1505                                                 }
1506                                         }
1507                                 }
1508                                 log(DEBUG,"add_channel: no key");
1509
1510                                 if (Ptr->inviteonly)
1511                                 {
1512                                         log(DEBUG,"add_channel: channel is +i");
1513                                         if (user->IsInvited(Ptr->name))
1514                                         {
1515                                                 /* user was invited to channel */
1516                                                 /* there may be an optional channel NOTICE here */
1517                                         }
1518                                         else
1519                                         {
1520                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1521                                                 return NULL;
1522                                         }
1523                                 }
1524                                 log(DEBUG,"add_channel: channel is not +i");
1525
1526                                 if (Ptr->limit)
1527                                 {
1528                                         if (usercount(Ptr) == Ptr->limit)
1529                                         {
1530                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1531                                                 return NULL;
1532                                         }
1533                                 }
1534
1535                                 log(DEBUG,"add_channel: about to walk banlist");
1536
1537                                 /* check user against the channel banlist */
1538                                 if (Ptr)
1539                                 {
1540                                         if (Ptr->bans.size())
1541                                         {
1542                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1543                                                 {
1544                                                         if (match(user->GetFullHost(),i->data))
1545                                                         {
1546                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1547                                                                 return NULL;
1548                                                         }
1549                                                 }
1550                                         }
1551                                 }
1552
1553                                 log(DEBUG,"add_channel: bans checked");
1554
1555
1556                                 if ((Ptr) && (user))
1557                                 {
1558                                         user->RemoveInvite(Ptr->name);
1559                                 }
1560
1561                                 log(DEBUG,"add_channel: invites removed");
1562
1563                         }
1564                         else
1565                         {
1566                                 log(DEBUG,"Overridden checks");
1567                         }
1568
1569
1570                 }
1571                 created = 1;
1572         }
1573
1574         log(DEBUG,"Passed channel checks");
1575
1576         for (int i =0; i != MAXCHANS; i++)
1577         {
1578                 log(DEBUG,"Check location %d",i);
1579                 if (user->chans[i].channel == NULL)
1580                 {
1581                         log(DEBUG,"Adding into their channel list at location %d",i);
1582
1583                         if (created == 2)
1584                         {
1585                                 /* first user in is given ops */
1586                                 user->chans[i].uc_modes = UCMODE_OP;
1587                         }
1588                         else
1589                         {
1590                                 user->chans[i].uc_modes = 0;
1591                         }
1592                         user->chans[i].channel = Ptr;
1593                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1594
1595                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1596                         {
1597                                 // use the stamdard J token with no privilages.
1598                                 char buffer[MAXBUF];
1599                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1600                                 for (int j = 0; j < 255; j++)
1601                                 {
1602                                         if (servers[j] != NULL)
1603                                         {
1604                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1605                                                 log(DEBUG,"Sent J token");
1606                                         }
1607                                 }
1608                         }
1609
1610                         log(DEBUG,"Sent JOIN to client");
1611
1612                         if (Ptr->topicset)
1613                         {
1614                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1615                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1616                         }
1617                         userlist(user,Ptr);
1618                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1619                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1620                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1621                         FOREACH_MOD OnUserJoin(user,Ptr);
1622                         return Ptr;
1623                 }
1624         }
1625         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1626         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1627         return NULL;
1628 }
1629
1630 /* remove a channel from a users record, and remove the record from memory
1631  * if the channel has become empty */
1632
1633 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1634 {
1635         if ((!user) || (!cname))
1636         {
1637                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1638                 return NULL;
1639         }
1640
1641         chanrec* Ptr;
1642         int created = 0;
1643
1644         if ((!cname) || (!user))
1645         {
1646                 return NULL;
1647         }
1648
1649         Ptr = FindChan(cname);
1650
1651         if (!Ptr)
1652         {
1653                 return NULL;
1654         }
1655
1656         FOREACH_MOD OnUserPart(user,Ptr);
1657         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1658
1659         for (int i =0; i != MAXCHANS; i++)
1660         {
1661                 /* zap it from the channel list of the user */
1662                 if (user->chans[i].channel == Ptr)
1663                 {
1664                         if (reason)
1665                         {
1666                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1667
1668                                 if (!local)
1669                                 {
1670                                         char buffer[MAXBUF];
1671                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1672                                         for (int j = 0; j < 255; j++)
1673                                         {
1674                                                 if (servers[j] != NULL)
1675                                                 {
1676                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1677                                                         log(DEBUG,"Sent L token (with reason)");
1678                                                 }
1679                                         }
1680                                 }
1681
1682
1683                         }
1684                         else
1685                         {
1686                                 if (!local)
1687                                 {
1688                                         char buffer[MAXBUF];
1689                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1690                                         for (int j = 0; j < 255; j++)
1691                                         {
1692                                                 if (servers[j] != NULL)
1693                                                 {
1694                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1695                                                         log(DEBUG,"Sent L token (no reason)");
1696                                                 }
1697                                         }
1698                                 }
1699
1700                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1701                         }
1702                         user->chans[i].uc_modes = 0;
1703                         user->chans[i].channel = NULL;
1704                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1705                         break;
1706                 }
1707         }
1708
1709         /* if there are no users left on the channel */
1710         if (!usercount(Ptr))
1711         {
1712                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1713
1714                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1715
1716                 /* kill the record */
1717                 if (iter != chanlist.end())
1718                 {
1719                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1720                         delete iter->second;
1721                         chanlist.erase(iter);
1722                 }
1723         }
1724 }
1725
1726
1727 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1728 {
1729         if ((!src) || (!user) || (!Ptr) || (!reason))
1730         {
1731                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1732                 return;
1733         }
1734
1735         int i = 0;
1736         int created = 0;
1737
1738         if ((!Ptr) || (!user) || (!src))
1739         {
1740                 return;
1741         }
1742
1743         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1744
1745         if (!has_channel(user,Ptr))
1746         {
1747                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1748                 return;
1749         }
1750         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1751         {
1752                 if (cstatus(src,Ptr) == STATUS_HOP)
1753                 {
1754                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1755                 }
1756                 else
1757                 {
1758                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1759                 }
1760
1761                 return;
1762         }
1763
1764         for (int i =0; i != MAXCHANS; i++)
1765         {
1766                 /* zap it from the channel list of the user */
1767                 if (user->chans[i].channel)
1768                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1769                 {
1770                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1771                         user->chans[i].uc_modes = 0;
1772                         user->chans[i].channel = NULL;
1773                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1774                         break;
1775                 }
1776         }
1777
1778         /* if there are no users left on the channel */
1779         if (!usercount(Ptr))
1780         {
1781                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1782
1783                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1784
1785                 /* kill the record */
1786                 if (iter != chanlist.end())
1787                 {
1788                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1789                         delete iter->second;
1790                         chanlist.erase(iter);
1791                 }
1792         }
1793 }
1794
1795
1796 /* returns 1 if user u has channel c in their record, 0 if not */
1797
1798 int has_channel(userrec *u, chanrec *c)
1799 {
1800         if ((!u) || (!c))
1801         {
1802                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1803                 return 0;
1804         }
1805         for (int i =0; i != MAXCHANS; i++)
1806         {
1807                 if (u->chans[i].channel == c)
1808                 {
1809                         return 1;
1810                 }
1811         }
1812         return 0;
1813 }
1814
1815 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1816 {
1817         userrec *d;
1818         int i;
1819
1820         if ((!user) || (!dest) || (!chan))
1821         {
1822                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1823                 return 0;
1824         }
1825         if (status < STATUS_OP)
1826         {
1827                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1828                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1829                 return 0;
1830         }
1831         else
1832         {
1833                 if (!isnick(dest))
1834                 {
1835                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1836                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1837                         return 0;
1838                 }
1839                 d = Find(dest);
1840                 if (!d)
1841                 {
1842                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1843                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1844                         return 0;
1845                 }
1846                 else
1847                 {
1848                         for (int i = 0; i != MAXCHANS; i++)
1849                         {
1850                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1851                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1852                                 {
1853                                         if (d->chans[i].uc_modes & UCMODE_OP)
1854                                         {
1855                                                 /* mode already set on user, dont allow multiple */
1856                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1857                                                 return 0;
1858                                         }
1859                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1860                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1861                                         return 1;
1862                                 }
1863                         }
1864                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1865                 }
1866         }
1867         return 1;
1868 }
1869
1870 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1871 {
1872         userrec *d;
1873         int i;
1874
1875         if ((!user) || (!dest) || (!chan))
1876         {
1877                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1878                 return 0;
1879         }
1880         if (status != STATUS_OP)
1881         {
1882                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1883                 return 0;
1884         }
1885         else
1886         {
1887                 d = Find(dest);
1888                 if (!isnick(dest))
1889                 {
1890                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1891                         return 0;
1892                 }
1893                 if (!d)
1894                 {
1895                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1896                         return 0;
1897                 }
1898                 else
1899                 {
1900                         for (int i = 0; i != MAXCHANS; i++)
1901                         {
1902                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1903                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1904                                 {
1905                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1906                                         {
1907                                                 /* mode already set on user, dont allow multiple */
1908                                                 return 0;
1909                                         }
1910                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1911                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1912                                         return 1;
1913                                 }
1914                         }
1915                 }
1916         }
1917         return 1;
1918 }
1919
1920 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1921 {
1922         userrec *d;
1923         int i;
1924
1925         if ((!user) || (!dest) || (!chan))
1926         {
1927                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1928                 return 0;
1929         }
1930         if (status < STATUS_HOP)
1931         {
1932                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1933                 return 0;
1934         }
1935         else
1936         {
1937                 d = Find(dest);
1938                 if (!isnick(dest))
1939                 {
1940                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1941                         return 0;
1942                 }
1943                 if (!d)
1944                 {
1945                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1946                         return 0;
1947                 }
1948                 else
1949                 {
1950                         for (int i = 0; i != MAXCHANS; i++)
1951                         {
1952                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1953                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1954                                 {
1955                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1956                                         {
1957                                                 /* mode already set on user, dont allow multiple */
1958                                                 return 0;
1959                                         }
1960                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1961                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1962                                         return 1;
1963                                 }
1964                         }
1965                 }
1966         }
1967         return 1;
1968 }
1969
1970 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1971 {
1972         userrec *d;
1973         int i;
1974
1975         if ((!user) || (!dest) || (!chan))
1976         {
1977                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1978                 return 0;
1979         }
1980         if (status < STATUS_OP)
1981         {
1982                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
1983                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1984                 return 0;
1985         }
1986         else
1987         {
1988                 d = Find(dest);
1989                 if (!isnick(dest))
1990                 {
1991                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
1992                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1993                         return 0;
1994                 }
1995                 if (!d)
1996                 {
1997                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
1998                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1999                         return 0;
2000                 }
2001                 else
2002                 {
2003                         for (int i = 0; i != MAXCHANS; i++)
2004                         {
2005                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2006                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2007                                 {
2008                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2009                                         {
2010                                                 /* mode already set on user, dont allow multiple */
2011                                                 return 0;
2012                                         }
2013                                         d->chans[i].uc_modes ^= UCMODE_OP;
2014                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2015                                         return 1;
2016                                 }
2017                         }
2018                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
2019                 }
2020         }
2021         return 1;
2022 }
2023
2024 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2025 {
2026         userrec *d;
2027         int i;
2028
2029         if ((!user) || (!dest) || (!chan))
2030         {
2031                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2032                 return 0;
2033         }
2034         if (status != STATUS_OP)
2035         {
2036                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2037                 return 0;
2038         }
2039         else
2040         {
2041                 d = Find(dest);
2042                 if (!isnick(dest))
2043                 {
2044                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2045                         return 0;
2046                 }
2047                 if (!d)
2048                 {
2049                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2050                         return 0;
2051                 }
2052                 else
2053                 {
2054                         for (int i = 0; i != MAXCHANS; i++)
2055                         {
2056                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2057                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2058                                 {
2059                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2060                                         {
2061                                                 /* mode already set on user, dont allow multiple */
2062                                                 return 0;
2063                                         }
2064                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2065                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2066                                         return 1;
2067                                 }
2068                         }
2069                 }
2070         }
2071         return 1;
2072 }
2073
2074 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2075 {
2076         userrec *d;
2077         int i;
2078
2079         if ((!user) || (!dest) || (!chan))
2080         {
2081                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2082                 return 0;
2083         }
2084         if (status < STATUS_HOP)
2085         {
2086                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2087                 return 0;
2088         }
2089         else
2090         {
2091                 d = Find(dest);
2092                 if (!isnick(dest))
2093                 {
2094                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2095                         return 0;
2096                 }
2097                 if (!d)
2098                 {
2099                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2100                         return 0;
2101                 }
2102                 else
2103                 {
2104                         for (int i = 0; i != MAXCHANS; i++)
2105                         {
2106                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2107                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2108                                 {
2109                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2110                                         {
2111                                                 /* mode already set on user, dont allow multiple */
2112                                                 return 0;
2113                                         }
2114                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2115                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2116                                         return 1;
2117                                 }
2118                         }
2119                 }
2120         }
2121         return 1;
2122 }
2123
2124 void TidyBan(char *ban)
2125 {
2126         if (!ban) {
2127                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2128                 return;
2129         }
2130
2131         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2132
2133         strcpy(temp,ban);
2134
2135         char* pos_of_pling = strchr(temp,'!');
2136         char* pos_of_at = strchr(temp,'@');
2137
2138         pos_of_pling[0] = '\0';
2139         pos_of_at[0] = '\0';
2140         pos_of_pling++;
2141         pos_of_at++;
2142
2143         strncpy(NICK,temp,NICKMAX);
2144         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2145         strncpy(HOST,pos_of_at,160);
2146
2147         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2148 }
2149
2150 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2151 {
2152         if ((!user) || (!dest) || (!chan)) {
2153                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2154                 return 0;
2155         }
2156
2157         BanItem b;
2158         if ((!user) || (!dest) || (!chan))
2159                 return 0;
2160         if (strchr(dest,'!')==0)
2161                 return 0;
2162         if (strchr(dest,'@')==0)
2163                 return 0;
2164         for (int i = 0; i < strlen(dest); i++)
2165                 if (dest[i] < 32)
2166                         return 0;
2167         for (int i = 0; i < strlen(dest); i++)
2168                 if (dest[i] > 126)
2169                         return 0;
2170         int c = 0;
2171         for (int i = 0; i < strlen(dest); i++)
2172                 if (dest[i] == '!')
2173                         c++;
2174         if (c>1)
2175                 return 0;
2176         c = 0;
2177         for (int i = 0; i < strlen(dest); i++)
2178                 if (dest[i] == '@')
2179                         c++;
2180         if (c>1)
2181                 return 0;
2182         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2183
2184         TidyBan(dest);
2185         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2186         {
2187                 if (!strcasecmp(i->data,dest))
2188                 {
2189                         // dont allow a user to set the same ban twice
2190                         return 0;
2191                 }
2192         }
2193
2194         b.set_time = time(NULL);
2195         strncpy(b.data,dest,MAXBUF);
2196         strncpy(b.set_by,user->nick,NICKMAX);
2197         chan->bans.push_back(b);
2198         return 1;
2199 }
2200
2201 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2202 {
2203         if ((!user) || (!dest) || (!chan)) {
2204                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2205                 return 0;
2206         }
2207
2208         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2209         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2210         {
2211                 if (!strcasecmp(i->data,dest))
2212                 {
2213                         chan->bans.erase(i);
2214                         return 1;
2215                 }
2216         }
2217         return 0;
2218 }
2219
2220 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2221 {
2222         if (!parameters) {
2223                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2224                 return;
2225         }
2226
2227         char modelist[MAXBUF];
2228         char outlist[MAXBUF];
2229         char outstr[MAXBUF];
2230         char outpars[32][MAXBUF];
2231         int param = 2;
2232         int pc = 0;
2233         int ptr = 0;
2234         int mdir = 1;
2235         int r = 0;
2236         bool k_set = false, l_set = false;
2237
2238         if (pcnt < 2)
2239         {
2240                 return;
2241         }
2242
2243         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2244
2245         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2246                                         /* parameters[2] onwards are parameters for
2247                                          * modes that require them :) */
2248         strcpy(outlist,"+");
2249         mdir = 1;
2250
2251         log(DEBUG,"process_modes: modelist: %s",modelist);
2252
2253         for (ptr = 0; ptr < strlen(modelist); ptr++)
2254         {
2255                 r = 0;
2256
2257                 {
2258                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2259                         char modechar = modelist[ptr];
2260                         switch (modelist[ptr])
2261                         {
2262                                 case '-':
2263                                         if (mdir != 0)
2264                                         {
2265                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2266                                                 {
2267                                                         outlist[strlen(outlist)-1] = '-';
2268                                                 }
2269                                                 else
2270                                                 {
2271                                                         strcat(outlist,"-");
2272                                                 }
2273                                         }
2274                                         mdir = 0;
2275
2276                                 break;
2277
2278                                 case '+':
2279                                         if (mdir != 1)
2280                                         {
2281                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2282                                                 {
2283                                                         outlist[strlen(outlist)-1] = '+';
2284                                                 }
2285                                                 else
2286                                                 {
2287                                                         strcat(outlist,"+");
2288                                                 }
2289                                         }
2290                                         mdir = 1;
2291                                 break;
2292
2293                                 case 'o':
2294                                         log(DEBUG,"Ops");
2295                                         if ((param >= pcnt)) break;
2296                                         log(DEBUG,"Enough parameters left");
2297                                         if (mdir == 1)
2298                                         {
2299                                                 log(DEBUG,"calling give_ops");
2300                                                 r = give_ops(user,parameters[param++],chan,status);
2301                                         }
2302                                         else
2303                                         {
2304                                                 log(DEBUG,"calling take_ops");
2305                                                 r = take_ops(user,parameters[param++],chan,status);
2306                                         }
2307                                         if (r)
2308                                         {
2309                                                 strcat(outlist,"o");
2310                                                 strcpy(outpars[pc++],parameters[param-1]);
2311                                         }
2312                                 break;
2313
2314                                 case 'h':
2315                                         if ((param >= pcnt)) break;
2316                                         if (mdir == 1)
2317                                         {
2318                                                 r = give_hops(user,parameters[param++],chan,status);
2319                                         }
2320                                         else
2321                                         {
2322                                                 r = take_hops(user,parameters[param++],chan,status);
2323                                         }
2324                                         if (r)
2325                                         {
2326                                                 strcat(outlist,"h");
2327                                                 strcpy(outpars[pc++],parameters[param-1]);
2328                                         }
2329                                 break;
2330
2331
2332                                 case 'v':
2333                                         if ((param >= pcnt)) break;
2334                                         if (mdir == 1)
2335                                         {
2336                                                 r = give_voice(user,parameters[param++],chan,status);
2337                                         }
2338                                         else
2339                                         {
2340                                                 r = take_voice(user,parameters[param++],chan,status);
2341                                         }
2342                                         if (r)
2343                                         {
2344                                                 strcat(outlist,"v");
2345                                                 strcpy(outpars[pc++],parameters[param-1]);
2346                                         }
2347                                 break;
2348
2349                                 case 'b':
2350                                         if ((param >= pcnt)) break;
2351                                         if (mdir == 1)
2352                                         {
2353                                                 r = add_ban(user,parameters[param++],chan,status);
2354                                         }
2355                                         else
2356                                         {
2357                                                 r = take_ban(user,parameters[param++],chan,status);
2358                                         }
2359                                         if (r)
2360                                         {
2361                                                 strcat(outlist,"b");
2362                                                 strcpy(outpars[pc++],parameters[param-1]);
2363                                         }
2364                                 break;
2365
2366
2367                                 case 'k':
2368                                         if ((param >= pcnt))
2369                                                 break;
2370
2371                                         if (mdir == 1)
2372                                         {
2373                                                 if (k_set)
2374                                                         break;
2375
2376                                                 if (!strcmp(chan->key,""))
2377                                                 {
2378                                                         strcat(outlist,"k");
2379                                                         char key[MAXBUF];
2380                                                         strcpy(key,parameters[param++]);
2381                                                         if (strlen(key)>32) {
2382                                                                 key[31] = '\0';
2383                                                         }
2384                                                         strcpy(outpars[pc++],key);
2385                                                         strcpy(chan->key,key);
2386                                                         k_set = true;
2387                                                 }
2388                                         }
2389                                         else
2390                                         {
2391                                                 /* checks on -k are case sensitive and only accurate to the
2392                                                    first 32 characters */
2393                                                 char key[MAXBUF];
2394                                                 strcpy(key,parameters[param++]);
2395                                                 if (strlen(key)>32) {
2396                                                         key[31] = '\0';
2397                                                 }
2398                                                 /* only allow -k if correct key given */
2399                                                 if (!strcmp(chan->key,key))
2400                                                 {
2401                                                         strcat(outlist,"k");
2402                                                         strcpy(chan->key,"");
2403                                                         strcpy(outpars[pc++],key);
2404                                                 }
2405                                         }
2406                                 break;
2407
2408                                 case 'l':
2409                                         if (mdir == 0)
2410                                         {
2411                                                 if (chan->limit)
2412                                                 {
2413                                                         strcat(outlist,"l");
2414                                                         chan->limit = 0;
2415                                                 }
2416                                         }
2417
2418                                         if ((param >= pcnt)) break;
2419                                         if (mdir == 1)
2420                                         {
2421                                                 if (l_set)
2422                                                         break;
2423
2424                                                 bool invalid = false;
2425                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2426                                                 {
2427                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2428                                                         {
2429                                                                 invalid = true;
2430                                                         }
2431                                                 }
2432                                                 if (atoi(parameters[param]) < 1)
2433                                                 {
2434                                                         invalid = true;
2435                                                 }
2436
2437                                                 if (invalid)
2438                                                         break;
2439
2440                                                 chan->limit = atoi(parameters[param]);
2441                                                 if (chan->limit)
2442                                                 {
2443                                                         strcat(outlist,"l");
2444                                                         strcpy(outpars[pc++],parameters[param++]);
2445                                                         l_set = true;
2446                                                 }
2447                                         }
2448                                 break;
2449
2450                                 case 'i':
2451                                         if (chan->inviteonly != mdir)
2452                                         {
2453                                                 strcat(outlist,"i");
2454                                         }
2455                                         chan->inviteonly = mdir;
2456                                 break;
2457
2458                                 case 't':
2459                                         if (chan->topiclock != mdir)
2460                                         {
2461                                                 strcat(outlist,"t");
2462                                         }
2463                                         chan->topiclock = mdir;
2464                                 break;
2465
2466                                 case 'n':
2467                                         if (chan->noexternal != mdir)
2468                                         {
2469                                                 strcat(outlist,"n");
2470                                         }
2471                                         chan->noexternal = mdir;
2472                                 break;
2473
2474                                 case 'm':
2475                                         if (chan->moderated != mdir)
2476                                         {
2477                                                 strcat(outlist,"m");
2478                                         }
2479                                         chan->moderated = mdir;
2480                                 break;
2481
2482                                 case 's':
2483                                         if (chan->secret != mdir)
2484                                         {
2485                                                 strcat(outlist,"s");
2486                                                 if (chan->c_private)
2487                                                 {
2488                                                         chan->c_private = 0;
2489                                                         if (mdir)
2490                                                         {
2491                                                                 strcat(outlist,"-p+");
2492                                                         }
2493                                                         else
2494                                                         {
2495                                                                 strcat(outlist,"+p-");
2496                                                         }
2497                                                 }
2498                                         }
2499                                         chan->secret = mdir;
2500                                 break;
2501
2502                                 case 'p':
2503                                         if (chan->c_private != mdir)
2504                                         {
2505                                                 strcat(outlist,"p");
2506                                                 if (chan->secret)
2507                                                 {
2508                                                         chan->secret = 0;
2509                                                         if (mdir)
2510                                                         {
2511                                                                 strcat(outlist,"-s+");
2512                                                         }
2513                                                         else
2514                                                         {
2515                                                                 strcat(outlist,"+s-");
2516                                                         }
2517                                                 }
2518                                         }
2519                                         chan->c_private = mdir;
2520                                 break;
2521
2522                                 default:
2523                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2524                                         string_list p;
2525                                         p.clear();
2526                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2527                                         {
2528                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2529                                                 break;
2530                                         }
2531                                         if (ModeDefined(modechar,MT_CHANNEL))
2532                                         {
2533                                                 log(DEBUG,"A module has claimed this mode");
2534                                                 if (param<pcnt)
2535                                                 {
2536                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2537                                                         {
2538                                                                 p.push_back(parameters[param]);
2539                                                         }
2540                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2541                                                         {
2542                                                                 p.push_back(parameters[param]);
2543                                                         }
2544                                                 }
2545                                                 bool handled = false;
2546                                                 if (param>=pcnt)
2547                                                 {
2548                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2549                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2550                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2551                                                         {
2552                                                                 handled = true;
2553                                                                 param++;
2554                                                         }
2555                                                 }
2556                                                 for (int i = 0; i <= MODCOUNT; i++)
2557                                                 {
2558                                                         if (!handled)
2559                                                         {
2560                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2561                                                                 {
2562                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2563                                                                         char app[] = {modechar, 0};
2564                                                                         if (ptr>0)
2565                                                                         {
2566                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2567                                                                                 {
2568                                                                                         strcat(outlist, app);
2569                                                                                 }
2570                                                                                 else if (!strchr(outlist,modechar))
2571                                                                                 {
2572                                                                                         strcat(outlist, app);
2573                                                                                 }
2574                                                                         }
2575                                                                         chan->SetCustomMode(modechar,mdir);
2576                                                                         // include parameters in output if mode has them
2577                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2578                                                                         {
2579                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2580                                                                                 strcpy(outpars[pc++],parameters[param++]);
2581                                                                         }
2582                                                                         // break, because only one module can handle the mode.
2583                                                                         handled = true;
2584                                                                 }
2585                                                         }
2586                                                 }
2587                                         }
2588                                 break;
2589
2590                         }
2591                 }
2592         }
2593
2594         /* this ensures only the *valid* modes are sent out onto the network */
2595         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2596         {
2597                 outlist[strlen(outlist)-1] = '\0';
2598         }
2599         if (strcmp(outlist,""))
2600         {
2601                 strcpy(outstr,outlist);
2602                 for (ptr = 0; ptr < pc; ptr++)
2603                 {
2604                         strcat(outstr," ");
2605                         strcat(outstr,outpars[ptr]);
2606                 }
2607                 if (local)
2608                 {
2609                         log(DEBUG,"Local mode change");
2610                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2611                 }
2612                 else
2613                 {
2614                         if (servermode)
2615                         {
2616                                 if (!silent)
2617                                 {
2618                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2619                                         // M token for a usermode must go to all servers
2620                                         char buffer[MAXBUF];
2621                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
2622                                         for (int j = 0; j < 255; j++)
2623                                         {
2624                                                 if (servers[j] != NULL)
2625                                                 {
2626                                                         if (strcmp(servers[j]->name,ServerName))
2627                                                         {
2628                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2629                                                                 {
2630                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2631                                                                         log(DEBUG,"Sent M token");
2632                                                                 }
2633                                                         }
2634                                                 }
2635                                         }
2636                                 }
2637
2638                         }
2639                         else
2640                         {
2641                                 if (!silent)
2642                                 {
2643                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2644                                         // M token for a usermode must go to all servers
2645                                         char buffer[MAXBUF];
2646                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2647                                         for (int j = 0; j < 255; j++)
2648                                         {
2649                                                 if (servers[j] != NULL)
2650                                                 {
2651                                                         if (strcmp(servers[j]->name,ServerName))
2652                                                         {
2653                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2654                                                                 {
2655                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2656                                                                         log(DEBUG,"Sent m token");
2657                                                                 }
2658                                                         }
2659                                                 }
2660                                         }
2661                                 }
2662                         }
2663                 }
2664         }
2665 }
2666
2667 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2668
2669 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2670 {
2671         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2672         // RFC1459 specified modes
2673         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2674         {
2675                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2676                 return true;
2677         }
2678
2679         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2680         if ((strchr(sourcemodes,'o')) && (!adding))
2681         {
2682                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2683                 return true;
2684         }
2685         else if (umode == 'o')
2686         {
2687                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2688                 return false;
2689         }
2690
2691         // process any module-defined modes that need oper
2692         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2693         {
2694                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2695                 return true;
2696         }
2697         else
2698         if (ModeDefined(umode,MT_CLIENT))
2699         {
2700                 // process any module-defined modes that don't need oper
2701                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2702                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2703                 {
2704                         // no, this mode needs oper, and this user 'aint got what it takes!
2705                         return false;
2706                 }
2707                 return true;
2708         }
2709
2710         // anything else - return false.
2711         log(DEBUG,"umode %c not known by any ruleset",umode);
2712         return false;
2713 }
2714
2715 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2716 {
2717         userrec* s2;
2718         bool faked = false;
2719         if (!source)
2720         {
2721                 s2 = new userrec;
2722                 strncpy(s2->nick,ServerName,NICKMAX);
2723                 strcpy(s2->modes,"o");
2724                 s2->fd = -1;
2725                 source = s2;
2726                 faked = true;
2727         }
2728         string_list p;
2729         p.clear();
2730         if (ModeDefined(umode,MT_CLIENT))
2731         {
2732                 for (int i = 0; i <= MODCOUNT; i++)
2733                 {
2734                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2735                         {
2736                                 log(DEBUG,"Module claims umode %c",umode);
2737                                 return true;
2738                         }
2739                 }
2740                 log(DEBUG,"No module claims umode %c",umode);
2741                 if (faked)
2742                 {
2743                         delete s2;
2744                         source = NULL;
2745                 }
2746                 return false;
2747         }
2748         else
2749         {
2750                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2751                 if (faked)
2752                 {
2753                         delete s2;
2754                         source = NULL;
2755                 }
2756                 return false;
2757         }
2758 }
2759
2760 void handle_mode(char **parameters, int pcnt, userrec *user)
2761 {
2762         chanrec* Ptr;
2763         userrec* dest;
2764         int can_change,i;
2765         int direction = 1;
2766         char outpars[MAXBUF];
2767
2768         dest = Find(parameters[0]);
2769
2770         if (!user)
2771         {
2772                 return;
2773         }
2774
2775         if ((dest) && (pcnt == 1))
2776         {
2777                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2778                 return;
2779         }
2780
2781         if ((dest) && (pcnt > 1))
2782         {
2783                 char dmodes[MAXBUF];
2784                 strncpy(dmodes,dest->modes,MAXBUF);
2785                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2786
2787                 can_change = 0;
2788                 if (user != dest)
2789                 {
2790                         if (strchr(user->modes,'o'))
2791                         {
2792                                 can_change = 1;
2793                         }
2794                 }
2795                 else
2796                 {
2797                         can_change = 1;
2798                 }
2799                 if (!can_change)
2800                 {
2801                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2802                         return;
2803                 }
2804
2805                 strcpy(outpars,"+");
2806                 direction = 1;
2807
2808                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2809                         return;
2810
2811                 for (int i = 0; i < strlen(parameters[1]); i++)
2812                 {
2813                         if (parameters[1][i] == '+')
2814                         {
2815                                 if (direction != 1)
2816                                 {
2817                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2818                                         {
2819                                                 outpars[strlen(outpars)-1] = '+';
2820                                         }
2821                                         else
2822                                         {
2823                                                 strcat(outpars,"+");
2824                                         }
2825                                 }
2826                                 direction = 1;
2827                         }
2828                         else
2829                         if (parameters[1][i] == '-')
2830                         {
2831                                 if (direction != 0)
2832                                 {
2833                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2834                                         {
2835                                                 outpars[strlen(outpars)-1] = '-';
2836                                         }
2837                                         else
2838                                         {
2839                                                 strcat(outpars,"-");
2840                                         }
2841                                 }
2842                                 direction = 0;
2843                         }
2844                         else
2845                         {
2846                                 can_change = 0;
2847                                 if (strchr(user->modes,'o'))
2848                                 {
2849                                         can_change = 1;
2850                                 }
2851                                 else
2852                                 {
2853                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2854                                         {
2855                                                 can_change = 1;
2856                                         }
2857                                 }
2858                                 if (can_change)
2859                                 {
2860                                         if (direction == 1)
2861                                         {
2862                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2863                                                 {
2864                                                         char umode = parameters[1][i];
2865                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2866                                                         {
2867                                                                 dmodes[strlen(dmodes)+1]='\0';
2868                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2869                                                                 outpars[strlen(outpars)+1]='\0';
2870                                                                 outpars[strlen(outpars)] = parameters[1][i];
2871                                                         }
2872                                                 }
2873                                         }
2874                                         else
2875                                         {
2876                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2877                                                 {
2878                                                         char umode = parameters[1][i];
2879                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2880                                                         {
2881                                                                 int q = 0;
2882                                                                 char temp[MAXBUF];
2883                                                                 char moo[MAXBUF];
2884
2885                                                                 outpars[strlen(outpars)+1]='\0';
2886                                                                 outpars[strlen(outpars)] = parameters[1][i];
2887
2888                                                                 strcpy(temp,"");
2889                                                                 for (q = 0; q < strlen(dmodes); q++)
2890                                                                 {
2891                                                                         if (dmodes[q] != parameters[1][i])
2892                                                                         {
2893                                                                                 moo[0] = dmodes[q];
2894                                                                                 moo[1] = '\0';
2895                                                                                 strcat(temp,moo);
2896                                                                         }
2897                                                                 }
2898                                                                 strcpy(dmodes,temp);
2899                                                         }
2900                                                 }
2901                                         }
2902                                 }
2903                         }
2904                 }
2905                 if (strlen(outpars))
2906                 {
2907                         char b[MAXBUF];
2908                         strcpy(b,"");
2909                         int z = 0;
2910                         int i = 0;
2911                         while (i < strlen (outpars))
2912                         {
2913                                 b[z++] = outpars[i++];
2914                                 b[z] = '\0';
2915                                 if (i<strlen(outpars)-1)
2916                                 {
2917                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2918                                         {
2919                                                 // someones playing silly buggers and trying
2920                                                 // to put a +- or -+ into the line...
2921                                                 i++;
2922                                         }
2923                                 }
2924                                 if (i == strlen(outpars)-1)
2925                                 {
2926                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2927                                         {
2928                                                 i++;
2929                                         }
2930                                 }
2931                         }
2932
2933                         z = strlen(b)-1;
2934                         if ((b[z] == '-') || (b[z] == '+'))
2935                                 b[z] == '\0';
2936
2937                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2938                                 return;
2939
2940                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2941
2942                         // M token for a usermode must go to all servers
2943                         char buffer[MAXBUF];
2944                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2945                         for (int j = 0; j < 255; j++)
2946                         {
2947                                 if (servers[j] != NULL)
2948                                 {
2949                                         if (strcmp(servers[j]->name,ServerName))
2950                                         {
2951                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2952                                                 log(DEBUG,"Sent m token");
2953                                         }
2954                                 }
2955                         }
2956
2957                         if (strlen(dmodes)>MAXMODES)
2958                         {
2959                                 dmodes[MAXMODES-1] = '\0';
2960                         }
2961                         log(DEBUG,"Stripped mode line");
2962                         log(DEBUG,"Line dest is now %s",dmodes);
2963                         strncpy(dest->modes,dmodes,MAXMODES);
2964
2965                 }
2966
2967                 return;
2968         }
2969
2970         Ptr = FindChan(parameters[0]);
2971         if (Ptr)
2972         {
2973                 if (pcnt == 1)
2974                 {
2975                         /* just /modes #channel */
2976                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2977                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2978                         return;
2979                 }
2980                 else
2981                 if (pcnt == 2)
2982                 {
2983                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2984                         {
2985
2986                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2987                                 {
2988                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2989                                 }
2990                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2991                                 return;
2992                         }
2993                 }
2994
2995                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2996                 {
2997                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
2998                         return;
2999                 }
3000
3001                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
3002         }
3003         else
3004         {
3005                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3006         }
3007 }
3008
3009
3010
3011
3012 void server_mode(char **parameters, int pcnt, userrec *user)
3013 {
3014         chanrec* Ptr;
3015         userrec* dest;
3016         int can_change,i;
3017         int direction = 1;
3018         char outpars[MAXBUF];
3019
3020         dest = Find(parameters[0]);
3021
3022         // fix: ChroNiCk found this - we cant use this as debug if its null!
3023         if (dest)
3024         {
3025                 log(DEBUG,"server_mode on %s",dest->nick);
3026         }
3027
3028         if ((dest) && (pcnt > 1))
3029         {
3030                 log(DEBUG,"params > 1");
3031
3032                 char dmodes[MAXBUF];
3033                 strncpy(dmodes,dest->modes,MAXBUF);
3034
3035                 strcpy(outpars,"+");
3036                 direction = 1;
3037
3038                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3039                         return;
3040
3041                 for (int i = 0; i < strlen(parameters[1]); i++)
3042                 {
3043                         if (parameters[1][i] == '+')
3044                         {
3045                                 if (direction != 1)
3046                                 {
3047                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3048                                         {
3049                                                 outpars[strlen(outpars)-1] = '+';
3050                                         }
3051                                         else
3052                                         {
3053                                                 strcat(outpars,"+");
3054                                         }
3055                                 }
3056                                 direction = 1;
3057                         }
3058                         else
3059                         if (parameters[1][i] == '-')
3060                         {
3061                                 if (direction != 0)
3062                                 {
3063                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3064                                         {
3065                                                 outpars[strlen(outpars)-1] = '-';
3066                                         }
3067                                         else
3068                                         {
3069                                                 strcat(outpars,"-");
3070                                         }
3071                                 }
3072                                 direction = 0;
3073                         }
3074                         else
3075                         {
3076                                 log(DEBUG,"begin mode processing entry");
3077                                 can_change = 1;
3078                                 if (can_change)
3079                                 {
3080                                         if (direction == 1)
3081                                         {
3082                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3083                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3084                                                 {
3085                                                         char umode = parameters[1][i];
3086                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3087                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3088                                                         {
3089                                                                 dmodes[strlen(dmodes)+1]='\0';
3090                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3091                                                                 outpars[strlen(outpars)+1]='\0';
3092                                                                 outpars[strlen(outpars)] = parameters[1][i];
3093                                                         }
3094                                                 }
3095                                         }
3096                                         else
3097                                         {
3098                                                 // can only remove a mode they already have
3099                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3100                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3101                                                 {
3102                                                         char umode = parameters[1][i];
3103                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3104                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3105                                                         {
3106                                                                 int q = 0;
3107                                                                 char temp[MAXBUF];
3108                                                                 char moo[MAXBUF];
3109
3110                                                                 outpars[strlen(outpars)+1]='\0';
3111                                                                 outpars[strlen(outpars)] = parameters[1][i];
3112
3113                                                                 strcpy(temp,"");
3114                                                                 for (q = 0; q < strlen(dmodes); q++)
3115                                                                 {
3116                                                                         if (dmodes[q] != parameters[1][i])
3117                                                                         {
3118                                                                                 moo[0] = dmodes[q];
3119                                                                                 moo[1] = '\0';
3120                                                                                 strcat(temp,moo);
3121                                                                         }
3122                                                                 }
3123                                                                 strcpy(dmodes,temp);
3124                                                         }
3125                                                 }
3126                                         }
3127                                 }
3128                         }
3129                 }
3130                 if (strlen(outpars))
3131                 {
3132                         char b[MAXBUF];
3133                         strcpy(b,"");
3134                         int z = 0;
3135                         int i = 0;
3136                         while (i < strlen (outpars))
3137                         {
3138                                 b[z++] = outpars[i++];
3139                                 b[z] = '\0';
3140                                 if (i<strlen(outpars)-1)
3141                                 {
3142                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3143                                         {
3144                                                 // someones playing silly buggers and trying
3145                                                 // to put a +- or -+ into the line...
3146                                                 i++;
3147                                         }
3148                                 }
3149                                 if (i == strlen(outpars)-1)
3150                                 {
3151                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3152                                         {
3153                                                 i++;
3154                                         }
3155                                 }
3156                         }
3157
3158                         z = strlen(b)-1;
3159                         if ((b[z] == '-') || (b[z] == '+'))
3160                                 b[z] == '\0';
3161
3162                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3163                                 return;
3164
3165                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3166
3167                         // M token for a usermode must go to all servers
3168                         char buffer[MAXBUF];
3169                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3170                         for (int j = 0; j < 255; j++)
3171                         {
3172                                 if (servers[j] != NULL)
3173                                 {
3174                                         if (strcmp(servers[j]->name,ServerName))
3175                                         {
3176                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3177                                                 log(DEBUG,"Sent m token");
3178                                         }
3179                                 }
3180                         }
3181
3182                         if (strlen(dmodes)>MAXMODES)
3183                         {
3184                                 dmodes[MAXMODES-1] = '\0';
3185                         }
3186                         log(DEBUG,"Stripped mode line");
3187                         log(DEBUG,"Line dest is now %s",dmodes);
3188                         strncpy(dest->modes,dmodes,MAXMODES);
3189
3190                 }
3191
3192                 return;
3193         }
3194
3195         Ptr = FindChan(parameters[0]);
3196         if (Ptr)
3197         {
3198                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3199         }
3200         else
3201         {
3202                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3203         }
3204 }
3205
3206
3207
3208 void merge_mode(char **parameters, int pcnt)
3209 {
3210         chanrec* Ptr;
3211         userrec* dest;
3212         int can_change,i;
3213         int direction = 1;
3214         char outpars[MAXBUF];
3215
3216         dest = Find(parameters[0]);
3217
3218         // fix: ChroNiCk found this - we cant use this as debug if its null!
3219         if (dest)
3220         {
3221                 log(DEBUG,"merge_mode on %s",dest->nick);
3222         }
3223
3224         if ((dest) && (pcnt > 1))
3225         {
3226                 log(DEBUG,"params > 1");
3227
3228                 char dmodes[MAXBUF];
3229                 strncpy(dmodes,dest->modes,MAXBUF);
3230
3231                 strcpy(outpars,"+");
3232                 direction = 1;
3233
3234                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3235                         return;
3236
3237                 for (int i = 0; i < strlen(parameters[1]); i++)
3238                 {
3239                         if (parameters[1][i] == '+')
3240                         {
3241                                 if (direction != 1)
3242                                 {
3243                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3244                                         {
3245                                                 outpars[strlen(outpars)-1] = '+';
3246                                         }
3247                                         else
3248                                         {
3249                                                 strcat(outpars,"+");
3250                                         }
3251                                 }
3252                                 direction = 1;
3253                         }
3254                         else
3255                         if (parameters[1][i] == '-')
3256                         {
3257                                 if (direction != 0)
3258                                 {
3259                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3260                                         {
3261                                                 outpars[strlen(outpars)-1] = '-';
3262                                         }
3263                                         else
3264                                         {
3265                                                 strcat(outpars,"-");
3266                                         }
3267                                 }
3268                                 direction = 0;
3269                         }
3270                         else
3271                         {
3272                                 log(DEBUG,"begin mode processing entry");
3273                                 can_change = 1;
3274                                 if (can_change)
3275                                 {
3276                                         if (direction == 1)
3277                                         {
3278                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3279                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3280                                                 {
3281                                                         char umode = parameters[1][i];
3282                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3283                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3284                                                         {
3285                                                                 dmodes[strlen(dmodes)+1]='\0';
3286                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3287                                                                 outpars[strlen(outpars)+1]='\0';
3288                                                                 outpars[strlen(outpars)] = parameters[1][i];
3289                                                         }
3290                                                 }
3291                                         }
3292                                         else
3293                                         {
3294                                                 // can only remove a mode they already have
3295                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3296                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3297                                                 {
3298                                                         char umode = parameters[1][i];
3299                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3300                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3301                                                         {
3302                                                                 int q = 0;
3303                                                                 char temp[MAXBUF];
3304                                                                 char moo[MAXBUF];
3305
3306                                                                 outpars[strlen(outpars)+1]='\0';
3307                                                                 outpars[strlen(outpars)] = parameters[1][i];
3308
3309                                                                 strcpy(temp,"");
3310                                                                 for (q = 0; q < strlen(dmodes); q++)
3311                                                                 {
3312                                                                         if (dmodes[q] != parameters[1][i])
3313                                                                         {
3314                                                                                 moo[0] = dmodes[q];
3315                                                                                 moo[1] = '\0';
3316                                                                                 strcat(temp,moo);
3317                                                                         }
3318                                                                 }
3319                                                                 strcpy(dmodes,temp);
3320                                                         }
3321                                                 }
3322                                         }
3323                                 }
3324                         }
3325                 }
3326                 if (strlen(outpars))
3327                 {
3328                         char b[MAXBUF];
3329                         strcpy(b,"");
3330                         int z = 0;
3331                         int i = 0;
3332                         while (i < strlen (outpars))
3333                         {
3334                                 b[z++] = outpars[i++];
3335                                 b[z] = '\0';
3336                                 if (i<strlen(outpars)-1)
3337                                 {
3338                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3339                                         {
3340                                                 // someones playing silly buggers and trying
3341                                                 // to put a +- or -+ into the line...
3342                                                 i++;
3343                                         }
3344                                 }
3345                                 if (i == strlen(outpars)-1)
3346                                 {
3347                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3348                                         {
3349                                                 i++;
3350                                         }
3351                                 }
3352                         }
3353
3354                         z = strlen(b)-1;
3355                         if ((b[z] == '-') || (b[z] == '+'))
3356                                 b[z] == '\0';
3357
3358                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3359                                 return;
3360
3361                         if (strlen(dmodes)>MAXMODES)
3362                         {
3363                                 dmodes[MAXMODES-1] = '\0';
3364                         }
3365                         log(DEBUG,"Stripped mode line");
3366                         log(DEBUG,"Line dest is now %s",dmodes);
3367                         strncpy(dest->modes,dmodes,MAXMODES);
3368
3369                 }
3370
3371                 return;
3372         }
3373
3374         Ptr = FindChan(parameters[0]);
3375         if (Ptr)
3376         {
3377                 userrec s2;
3378                 strncpy(s2.nick,ServerName,NICKMAX);
3379                 strcpy(s2.modes,"o");
3380                 s2.fd = -1;
3381                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3382         }
3383 }
3384
3385
3386 void merge_mode2(char **parameters, int pcnt, userrec* user)
3387 {
3388         chanrec* Ptr;
3389         userrec* dest;
3390         int can_change,i;
3391         int direction = 1;
3392         char outpars[MAXBUF];
3393
3394         dest = Find(parameters[0]);
3395
3396         // fix: ChroNiCk found this - we cant use this as debug if its null!
3397         if (dest)
3398         {
3399                 log(DEBUG,"merge_mode on %s",dest->nick);
3400         }
3401
3402         if ((dest) && (pcnt > 1))
3403         {
3404                 log(DEBUG,"params > 1");
3405
3406                 char dmodes[MAXBUF];
3407                 strncpy(dmodes,dest->modes,MAXBUF);
3408
3409                 strcpy(outpars,"+");
3410                 direction = 1;
3411
3412                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3413                         return;
3414
3415                 for (int i = 0; i < strlen(parameters[1]); i++)
3416                 {
3417                         if (parameters[1][i] == '+')
3418                         {
3419                                 if (direction != 1)
3420                                 {
3421                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3422                                         {
3423                                                 outpars[strlen(outpars)-1] = '+';
3424                                         }
3425                                         else
3426                                         {
3427                                                 strcat(outpars,"+");
3428                                         }
3429                                 }
3430                                 direction = 1;
3431                         }
3432                         else
3433                         if (parameters[1][i] == '-')
3434                         {
3435                                 if (direction != 0)
3436                                 {
3437                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3438                                         {
3439                                                 outpars[strlen(outpars)-1] = '-';
3440                                         }
3441                                         else
3442                                         {
3443                                                 strcat(outpars,"-");
3444                                         }
3445                                 }
3446                                 direction = 0;
3447                         }
3448                         else
3449                         {
3450                                 log(DEBUG,"begin mode processing entry");
3451                                 can_change = 1;
3452                                 if (can_change)
3453                                 {
3454                                         if (direction == 1)
3455                                         {
3456                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3457                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3458                                                 {
3459                                                         char umode = parameters[1][i];
3460                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3461                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3462                                                         {
3463                                                                 dmodes[strlen(dmodes)+1]='\0';
3464                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3465                                                                 outpars[strlen(outpars)+1]='\0';
3466                                                                 outpars[strlen(outpars)] = parameters[1][i];
3467                                                         }
3468                                                 }
3469                                         }
3470                                         else
3471                                         {
3472                                                 // can only remove a mode they already have
3473                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3474                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3475                                                 {
3476                                                         char umode = parameters[1][i];
3477                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3478                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3479                                                         {
3480                                                                 int q = 0;
3481                                                                 char temp[MAXBUF];
3482                                                                 char moo[MAXBUF];
3483
3484                                                                 outpars[strlen(outpars)+1]='\0';
3485                                                                 outpars[strlen(outpars)] = parameters[1][i];
3486
3487                                                                 strcpy(temp,"");
3488                                                                 for (q = 0; q < strlen(dmodes); q++)
3489                                                                 {
3490                                                                         if (dmodes[q] != parameters[1][i])
3491                                                                         {
3492                                                                                 moo[0] = dmodes[q];
3493                                                                                 moo[1] = '\0';
3494                                                                                 strcat(temp,moo);
3495                                                                         }
3496                                                                 }
3497                                                                 strcpy(dmodes,temp);
3498                                                         }
3499                                                 }
3500                                         }
3501                                 }
3502                         }
3503                 }
3504                 if (strlen(outpars))
3505                 {
3506                         char b[MAXBUF];
3507                         strcpy(b,"");
3508                         int z = 0;
3509                         int i = 0;
3510                         while (i < strlen (outpars))
3511                         {
3512                                 b[z++] = outpars[i++];
3513                                 b[z] = '\0';
3514                                 if (i<strlen(outpars)-1)
3515                                 {
3516                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3517                                         {
3518                                                 // someones playing silly buggers and trying
3519                                                 // to put a +- or -+ into the line...
3520                                                 i++;
3521                                         }
3522                                 }
3523                                 if (i == strlen(outpars)-1)
3524                                 {
3525                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3526                                         {
3527                                                 i++;
3528                                         }
3529                                 }
3530                         }
3531
3532                         z = strlen(b)-1;
3533                         if ((b[z] == '-') || (b[z] == '+'))
3534                                 b[z] == '\0';
3535
3536                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3537                                 return;
3538
3539                         WriteTo(user,dest,"MODE :%s",b);
3540
3541                         if (strlen(dmodes)>MAXMODES)
3542                         {
3543                                 dmodes[MAXMODES-1] = '\0';
3544                         }
3545                         log(DEBUG,"Stripped mode line");
3546                         log(DEBUG,"Line dest is now %s",dmodes);
3547                         strncpy(dest->modes,dmodes,MAXMODES);
3548
3549                 }
3550
3551                 return;
3552         }
3553
3554         Ptr = FindChan(parameters[0]);
3555         if (Ptr)
3556         {
3557                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3558                 {
3559                         return;
3560                 }
3561
3562                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3563         }
3564 }
3565
3566
3567
3568 /* This function pokes and hacks at a parameter list like the following:
3569  *
3570  * PART #winbot, #darkgalaxy :m00!
3571  *
3572  * to turn it into a series of individual calls like this:
3573  *
3574  * PART #winbot :m00!
3575  * PART #darkgalaxy :m00!
3576  *
3577  * The seperate calls are sent to a callback function provided by the caller
3578  * (the caller will usually call itself recursively). The callback function
3579  * must be a command handler. Calling this function on a line with no list causes
3580  * no action to be taken. You must provide a starting and ending parameter number
3581  * where the range of the list can be found, useful if you have a terminating
3582  * parameter as above which is actually not part of the list, or parameters
3583  * before the actual list as well. This code is used by many functions which
3584  * can function as "one to list" (see the RFC) */
3585
3586 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3587 {
3588         char plist[MAXBUF];
3589         char *param;
3590         char *pars[32];
3591         char blog[32][MAXBUF];
3592         char blog2[32][MAXBUF];
3593         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3594         char keystr[MAXBUF];
3595         char moo[MAXBUF];
3596
3597         for (int i = 0; i <32; i++)
3598                 strcpy(blog[i],"");
3599
3600         for (int i = 0; i <32; i++)
3601                 strcpy(blog2[i],"");
3602
3603         strcpy(moo,"");
3604         for (int i = 0; i <10; i++)
3605         {
3606                 if (!parameters[i])
3607                 {
3608                         parameters[i] = moo;
3609                 }
3610         }
3611         if (joins)
3612         {
3613                 if (pcnt > 1) /* we have a key to copy */
3614                 {
3615                         strcpy(keystr,parameters[1]);
3616                 }
3617         }
3618
3619         if (!parameters[start])
3620         {
3621                 return 0;
3622         }
3623         if (!strchr(parameters[start],','))
3624         {
3625                 return 0;
3626         }
3627         strcpy(plist,"");
3628         for (int i = start; i <= end; i++)
3629         {
3630                 if (parameters[i])
3631                 {
3632                         strcat(plist,parameters[i]);
3633                 }
3634         }
3635
3636         j = 0;
3637         param = plist;
3638
3639         t = strlen(plist);
3640         for (int i = 0; i < t; i++)
3641         {
3642                 if (plist[i] == ',')
3643                 {
3644                         plist[i] = '\0';
3645                         strcpy(blog[j++],param);
3646                         param = plist+i+1;
3647                         if (j>20)
3648                         {
3649                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3650                                 return 1;
3651                         }
3652                 }
3653         }
3654         strcpy(blog[j++],param);
3655         total = j;
3656
3657         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3658         {
3659                 strcat(keystr,",");
3660         }
3661
3662         if ((joins) && (keystr))
3663         {
3664                 if (strchr(keystr,','))
3665                 {
3666                         j = 0;
3667                         param = keystr;
3668                         t2 = strlen(keystr);
3669                         for (int i = 0; i < t2; i++)
3670                         {
3671                                 if (keystr[i] == ',')
3672                                 {
3673                                         keystr[i] = '\0';
3674                                         strcpy(blog2[j++],param);
3675                                         param = keystr+i+1;
3676                                 }
3677                         }
3678                         strcpy(blog2[j++],param);
3679                         total2 = j;
3680                 }
3681         }
3682
3683         for (j = 0; j < total; j++)
3684         {
3685                 if (blog[j])
3686                 {
3687                         pars[0] = blog[j];
3688                 }
3689                 for (q = end; q < pcnt-1; q++)
3690                 {
3691                         if (parameters[q+1])
3692                         {
3693                                 pars[q-end+1] = parameters[q+1];
3694                         }
3695                 }
3696                 if ((joins) && (parameters[1]))
3697                 {
3698                         if (pcnt > 1)
3699                         {
3700                                 pars[1] = blog2[j];
3701                         }
3702                         else
3703                         {
3704                                 pars[1] = NULL;
3705                         }
3706                 }
3707                 /* repeatedly call the function with the hacked parameter list */
3708                 if ((joins) && (pcnt > 1))
3709                 {
3710                         if (pars[1])
3711                         {
3712                                 // pars[1] already set up and containing key from blog2[j]
3713                                 fn(pars,2,u);
3714                         }
3715                         else
3716                         {
3717                                 pars[1] = parameters[1];
3718                                 fn(pars,2,u);
3719                         }
3720                 }
3721                 else
3722                 {
3723                         fn(pars,pcnt-(end-start),u);
3724                 }
3725         }
3726
3727         return 1;
3728 }
3729
3730
3731 void handle_join(char **parameters, int pcnt, userrec *user)
3732 {
3733         chanrec* Ptr;
3734         int i = 0;
3735
3736         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3737                 return;
3738         if (parameters[0][0] == '#')
3739         {
3740                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3741         }
3742 }
3743
3744
3745 void handle_part(char **parameters, int pcnt, userrec *user)
3746 {
3747         chanrec* Ptr;
3748
3749         if (pcnt > 1)
3750         {
3751                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3752                         return;
3753                 del_channel(user,parameters[0],parameters[1],false);
3754         }
3755         else
3756         {
3757                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3758                         return;
3759                 del_channel(user,parameters[0],NULL,false);
3760         }
3761 }
3762
3763 void handle_kick(char **parameters, int pcnt, userrec *user)
3764 {
3765         chanrec* Ptr = FindChan(parameters[0]);
3766         userrec* u   = Find(parameters[1]);
3767
3768         if ((!u) || (!Ptr))
3769         {
3770                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3771                 return;
3772         }
3773
3774         if (!has_channel(u,Ptr))
3775         {
3776                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3777                 return;
3778         }
3779
3780         char reason[MAXBUF];
3781
3782         if (pcnt > 2)
3783         {
3784                 strncpy(reason,parameters[2],MAXBUF);
3785                 if (strlen(reason)>MAXKICK)
3786                 {
3787                         reason[MAXKICK-1] = '\0';
3788                 }
3789
3790                 kick_channel(user,u,Ptr,reason);
3791         }
3792         else
3793         {
3794                 strcpy(reason,user->nick);
3795                 kick_channel(user,u,Ptr,reason);
3796         }
3797
3798         // this must be propogated so that channel membership is kept in step network-wide
3799
3800         char buffer[MAXBUF];
3801         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3802         for (int j = 0; j < 255; j++)
3803         {
3804                 if (servers[j] != NULL)
3805                 {
3806                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3807                         log(DEBUG,"Sent k token");
3808                 }
3809         }
3810
3811 }
3812
3813
3814 void handle_die(char **parameters, int pcnt, userrec *user)
3815 {
3816         log(DEBUG,"die: %s",user->nick);
3817         if (!strcmp(parameters[0],diepass))
3818         {
3819                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3820                 sleep(DieDelay);
3821                 Exit(ERROR);
3822         }
3823         else
3824         {
3825                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3826         }
3827 }
3828
3829 void handle_restart(char **parameters, int pcnt, userrec *user)
3830 {
3831         log(DEBUG,"restart: %s",user->nick);
3832         if (!strcmp(parameters[0],restartpass))
3833         {
3834                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3835                 sleep(DieDelay);
3836                 Exit(ERROR);
3837                 /* Will finish this later when i can be arsed :) */
3838         }
3839         else
3840         {
3841                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3842         }
3843 }
3844
3845
3846 void kill_link(userrec *user,const char* r)
3847 {
3848         user_hash::iterator iter = clientlist.find(user->nick);
3849
3850         char reason[MAXBUF];
3851
3852         strncpy(reason,r,MAXBUF);
3853
3854         if (strlen(reason)>MAXQUIT)
3855         {
3856                 reason[MAXQUIT-1] = '\0';
3857         }
3858
3859         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3860         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3861         log(DEBUG,"closing fd %d",user->fd);
3862
3863         /* bugfix, cant close() a nonblocking socket (sux!) */
3864         if (user->registered == 7) {
3865                 FOREACH_MOD OnUserQuit(user);
3866                 WriteCommonExcept(user,"QUIT :%s",reason);
3867
3868                 // Q token must go to ALL servers!!!
3869                 char buffer[MAXBUF];
3870                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3871                 for (int j = 0; j < 255; j++)
3872                 {
3873                         if (servers[j] != NULL)
3874                         {
3875                                 if (strcmp(servers[j]->name,ServerName))
3876                                 {
3877                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3878                                         log(DEBUG,"Sent Q token");
3879                                 }
3880                         }
3881                 }
3882         }
3883
3884         /* push the socket on a stack of sockets due to be closed at the next opportunity
3885          * 'Client exited' is an exception to this as it means the client side has already
3886          * closed the socket, we don't need to do it.
3887          */
3888         fd_reap.push_back(user->fd);
3889
3890         bool do_purge = false;
3891
3892         if (user->registered == 7) {
3893                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3894                 AddWhoWas(user);
3895         }
3896
3897         if (iter != clientlist.end())
3898         {
3899                 log(DEBUG,"deleting user hash value %d",iter->second);
3900                 if ((iter->second) && (user->registered == 7)) {
3901                         delete iter->second;
3902                 }
3903                 clientlist.erase(iter);
3904         }
3905
3906         if (user->registered == 7) {
3907                 purge_empty_chans();
3908         }
3909 }
3910
3911
3912 void handle_kill(char **parameters, int pcnt, userrec *user)
3913 {
3914         userrec *u = Find(parameters[0]);
3915         char killreason[MAXBUF];
3916
3917         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3918         if (u)
3919         {
3920                 WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3921                 // :Brain!brain@NetAdmin.chatspike.net KILL [Brain] :homer!NetAdmin.chatspike.net!Brain (test kill)
3922                 WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3923                 sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3924                 kill_link(u,killreason);
3925         }
3926         else
3927         {
3928                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3929         }
3930 }
3931
3932 void handle_summon(char **parameters, int pcnt, userrec *user)
3933 {
3934         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3935 }
3936
3937 void handle_users(char **parameters, int pcnt, userrec *user)
3938 {
3939         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3940 }
3941
3942
3943 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3944
3945 char* Passwd(userrec *user)
3946 {
3947         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3948         {
3949                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3950                 {
3951                         return i->pass;
3952                 }
3953         }
3954         return "";
3955 }
3956
3957 bool IsDenied(userrec *user)
3958 {
3959         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3960         {
3961                 if (match(user->host,i->host) && (i->type == CC_DENY))
3962                 {
3963                         return true;
3964                 }
3965         }
3966         return false;
3967 }
3968
3969
3970
3971 void handle_pass(char **parameters, int pcnt, userrec *user)
3972 {
3973         // Check to make sure they havnt registered -- Fix by FCS
3974         if (user->registered == 7)
3975         {
3976                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
3977                 return;
3978         }
3979         if (!strcasecmp(parameters[0],Passwd(user)))
3980         {
3981                 user->haspassed = true;
3982         }
3983 }
3984
3985 void handle_invite(char **parameters, int pcnt, userrec *user)
3986 {
3987         userrec* u = Find(parameters[0]);
3988         chanrec* c = FindChan(parameters[1]);
3989
3990         if ((!c) || (!u))
3991         {
3992                 if (!c)
3993                 {
3994                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3995                 }
3996                 else
3997                 {
3998                         if (c->inviteonly)
3999                         {
4000                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
4001                         }
4002                 }
4003
4004                 return;
4005         }
4006
4007         if (c->inviteonly)
4008         {
4009                 if (cstatus(user,c) < STATUS_HOP)
4010                 {
4011                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
4012                         return;
4013                 }
4014         }
4015         if (has_channel(u,c))
4016         {
4017                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4018                 return;
4019         }
4020         if (!has_channel(user,c))
4021         {
4022                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4023                 return;
4024         }
4025         u->InviteTo(c->name);
4026         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4027         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4028
4029         // i token must go to ALL servers!!!
4030         char buffer[MAXBUF];
4031         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
4032         for (int j = 0; j < 255; j++)
4033         {
4034                 if (servers[j] != NULL)
4035                 {
4036                         if (strcmp(servers[j]->name,ServerName))
4037                         {
4038                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4039                                 log(DEBUG,"Sent i token");
4040                         }
4041                 }
4042         }
4043 }
4044
4045 void handle_topic(char **parameters, int pcnt, userrec *user)
4046 {
4047         chanrec* Ptr;
4048
4049         if (pcnt == 1)
4050         {
4051                 if (strlen(parameters[0]) <= CHANMAX)
4052                 {
4053                         Ptr = FindChan(parameters[0]);
4054                         if (Ptr)
4055                         {
4056                                 if (Ptr->topicset)
4057                                 {
4058                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4059                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4060                                 }
4061                                 else
4062                                 {
4063                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4064                                 }
4065                         }
4066                         else
4067                         {
4068                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4069                         }
4070                 }
4071                 return;
4072         }
4073         else if (pcnt>1)
4074         {
4075                 if (strlen(parameters[0]) <= CHANMAX)
4076                 {
4077                         Ptr = FindChan(parameters[0]);
4078                         if (Ptr)
4079                         {
4080                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4081                                 {
4082                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4083                                         return;
4084                                 }
4085
4086                                 char topic[MAXBUF];
4087                                 strncpy(topic,parameters[1],MAXBUF);
4088                                 if (strlen(topic)>MAXTOPIC)
4089                                 {
4090                                         topic[MAXTOPIC-1] = '\0';
4091                                 }
4092
4093                                 strcpy(Ptr->topic,topic);
4094                                 strcpy(Ptr->setby,user->nick);
4095                                 Ptr->topicset = time(NULL);
4096                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4097
4098                                 // t token must go to ALL servers!!!
4099                                 char buffer[MAXBUF];
4100                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
4101                                 for (int j = 0; j < 255; j++)
4102                                 {
4103                                         if (servers[j] != NULL)
4104                                         {
4105                                                 if (strcmp(servers[j]->name,ServerName))
4106                                                 {
4107                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4108                                                         log(DEBUG,"Sent t token");
4109                                                 }
4110                                         }
4111                                 }
4112                         }
4113                         else
4114                         {
4115                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4116                         }
4117                 }
4118         }
4119 }
4120
4121 /* sends out an error notice to all connected clients (not to be used
4122  * lightly!) */
4123
4124 void send_error(char *s)
4125 {
4126         log(DEBUG,"send_error: %s",s);
4127         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4128         {
4129                 if (isnick(i->second->nick))
4130                 {
4131                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4132                 }
4133                 else
4134                 {
4135                         // fix - unregistered connections receive ERROR, not NOTICE
4136                         Write(i->second->fd,"ERROR :%s",s);
4137                 }
4138         }
4139 }
4140
4141 void Error(int status)
4142 {
4143         signal (SIGALRM, SIG_IGN);
4144         signal (SIGPIPE, SIG_IGN);
4145         signal (SIGTERM, SIG_IGN);
4146         signal (SIGABRT, SIG_IGN);
4147         signal (SIGSEGV, SIG_IGN);
4148         signal (SIGURG, SIG_IGN);
4149         signal (SIGKILL, SIG_IGN);
4150         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4151         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4152         exit(status);
4153 }
4154
4155
4156 int main (int argc, char *argv[])
4157 {
4158         Start();
4159         log(DEBUG,"*** InspIRCd starting up!");
4160         if (!FileExists(CONFIG_FILE))
4161         {
4162                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4163                 log(DEBUG,"main: no config");
4164                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4165                 Exit(ERROR);
4166         }
4167         if (argc > 1) {
4168                 if (!strcmp(argv[1],"-nofork")) {
4169                         nofork = true;
4170                 }
4171         }
4172         if (InspIRCd() == ERROR)
4173         {
4174                 log(DEBUG,"main: daemon function bailed");
4175                 printf("ERROR: could not initialise. Shutting down.\n");
4176                 Exit(ERROR);
4177         }
4178         Exit(TRUE);
4179         return 0;
4180 }
4181
4182 template<typename T> inline string ConvToStr(const T &in)
4183 {
4184         stringstream tmp;
4185         if (!(tmp << in)) return string();
4186         return tmp.str();
4187 }
4188
4189 /* re-allocates a nick in the user_hash after they change nicknames,
4190  * returns a pointer to the new user as it may have moved */
4191
4192 userrec* ReHashNick(char* Old, char* New)
4193 {
4194         user_hash::iterator newnick;
4195         user_hash::iterator oldnick = clientlist.find(Old);
4196
4197         log(DEBUG,"ReHashNick: %s %s",Old,New);
4198
4199         if (!strcasecmp(Old,New))
4200         {
4201                 log(DEBUG,"old nick is new nick, skipping");
4202                 return oldnick->second;
4203         }
4204
4205         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4206
4207         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4208
4209         clientlist[New] = new userrec();
4210         clientlist[New] = oldnick->second;
4211         /*delete oldnick->second; */
4212         clientlist.erase(oldnick);
4213
4214         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4215
4216         return clientlist[New];
4217 }
4218
4219 /* adds or updates an entry in the whowas list */
4220 void AddWhoWas(userrec* u)
4221 {
4222         user_hash::iterator iter = whowas.find(u->nick);
4223         userrec *a = new userrec();
4224         strcpy(a->nick,u->nick);
4225         strcpy(a->ident,u->ident);
4226         strcpy(a->dhost,u->dhost);
4227         strcpy(a->host,u->host);
4228         strcpy(a->fullname,u->fullname);
4229         strcpy(a->server,u->server);
4230         a->signon = u->signon;
4231
4232         /* MAX_WHOWAS:   max number of /WHOWAS items
4233          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4234          *               can be replaced by a newer one
4235          */
4236
4237         if (iter == whowas.end())
4238         {
4239                 if (whowas.size() == WHOWAS_MAX)
4240                 {
4241                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4242                         {
4243                                 // 3600 seconds in an hour ;)
4244                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4245                                 {
4246                                         delete i->second;
4247                                         i->second = a;
4248                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4249                                         return;
4250                                 }
4251                         }
4252                 }
4253                 else
4254                 {
4255                         log(DEBUG,"added fresh WHOWAS entry");
4256                         whowas[a->nick] = a;
4257                 }
4258         }
4259         else
4260         {
4261                 log(DEBUG,"updated WHOWAS entry");
4262                 delete iter->second;
4263                 iter->second = a;
4264         }
4265 }
4266
4267
4268 /* add a client connection to the sockets list */
4269 void AddClient(int socket, char* host, int port, bool iscached)
4270 {
4271         int i;
4272         int blocking = 1;
4273         char resolved[MAXBUF];
4274         string tempnick;
4275         char tn2[MAXBUF];
4276         user_hash::iterator iter;
4277
4278         tempnick = ConvToStr(socket) + "-unknown";
4279         sprintf(tn2,"%d-unknown",socket);
4280
4281         iter = clientlist.find(tempnick);
4282
4283         if (iter != clientlist.end()) return;
4284
4285         /*
4286          * It is OK to access the value here this way since we know
4287          * it exists, we just created it above.
4288          *
4289          * At NO other time should you access a value in a map or a
4290          * hash_map this way.
4291          */
4292         clientlist[tempnick] = new userrec();
4293
4294         NonBlocking(socket);
4295         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4296
4297         clientlist[tempnick]->fd = socket;
4298         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4299         strncpy(clientlist[tempnick]->host, host,160);
4300         strncpy(clientlist[tempnick]->dhost, host,160);
4301         strncpy(clientlist[tempnick]->server, ServerName,256);
4302         strncpy(clientlist[tempnick]->ident, "unknown",9);
4303         clientlist[tempnick]->registered = 0;
4304         clientlist[tempnick]->signon = time(NULL);
4305         clientlist[tempnick]->nping = time(NULL)+240;
4306         clientlist[tempnick]->lastping = 1;
4307         clientlist[tempnick]->port = port;
4308
4309         if (iscached)
4310         {
4311                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4312         }
4313         else
4314         {
4315                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4316         }
4317
4318         // set the registration timeout for this user
4319         unsigned long class_regtimeout = 90;
4320         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4321         {
4322                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4323                 {
4324                         class_regtimeout = (unsigned long)i->registration_timeout;
4325                         break;
4326                 }
4327         }
4328
4329         int class_flood = 0;
4330         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4331         {
4332                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4333                 {
4334                         class_flood = i->flood;
4335                         break;
4336                 }
4337         }
4338
4339         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4340         clientlist[tempnick]->flood = class_flood;
4341
4342         for (int i = 0; i < MAXCHANS; i++)
4343         {
4344                 clientlist[tempnick]->chans[i].channel = NULL;
4345                 clientlist[tempnick]->chans[i].uc_modes = 0;
4346         }
4347
4348         if (clientlist.size() == MAXCLIENTS)
4349                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4350 }
4351
4352 void handle_names(char **parameters, int pcnt, userrec *user)
4353 {
4354         chanrec* c;
4355
4356         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4357                 return;
4358         c = FindChan(parameters[0]);
4359         if (c)
4360         {
4361                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4362                 userlist(user,c);
4363                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4364         }
4365         else
4366         {
4367                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4368         }
4369 }
4370
4371 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4372 {
4373         userrec *dest;
4374         chanrec *chan;
4375
4376         user->idle_lastmsg = time(NULL);
4377
4378         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4379                 return;
4380         if (parameters[0][0] == '#')
4381         {
4382                 chan = FindChan(parameters[0]);
4383                 if (chan)
4384                 {
4385                         if ((chan->noexternal) && (!has_channel(user,chan)))
4386                         {
4387                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4388                                 return;
4389                         }
4390                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4391                         {
4392                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4393                                 return;
4394                         }
4395
4396                         int MOD_RESULT = 0;
4397
4398                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4399                         if (MOD_RESULT) {
4400                                 return;
4401                         }
4402
4403                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4404
4405                         // if any users of this channel are on remote servers, broadcast the packet
4406                         char buffer[MAXBUF];
4407                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4408                         for (int j = 0; j < 255; j++)
4409                         {
4410                                 if (servers[j] != NULL)
4411                                 {
4412                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4413                                         {
4414                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4415                                         }
4416                                 }
4417                         }
4418                 }
4419                 else
4420                 {
4421                         /* no such nick/channel */
4422                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4423                 }
4424                 return;
4425         }
4426
4427         dest = Find(parameters[0]);
4428         if (dest)
4429         {
4430                 if (strcmp(dest->awaymsg,""))
4431                 {
4432                         /* auto respond with aweh msg */
4433                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4434                 }
4435
4436                 int MOD_RESULT = 0;
4437
4438                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4439                 if (MOD_RESULT) {
4440                         return;
4441                 }
4442
4443
4444
4445                 if (!strcmp(dest->server,user->server))
4446                 {
4447                         // direct write, same server
4448                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4449                 }
4450                 else
4451                 {
4452                         for (int j = 0; j < 255; j++)
4453                         {
4454                                 if (servers[j] != NULL)
4455                                 {
4456                                         if (!strcasecmp(servers[j]->name,dest->server))
4457                                         {
4458                                                 // direct write, same server
4459                                                 char buffer[MAXBUF];
4460                                                 snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4461                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4462                                         }
4463                                 }
4464                         }
4465                 }
4466         }
4467         else
4468         {
4469                 /* no such nick/channel */
4470                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4471         }
4472 }
4473
4474 void handle_notice(char **parameters, int pcnt, userrec *user)
4475 {
4476         userrec *dest;
4477         chanrec *chan;
4478
4479         user->idle_lastmsg = time(NULL);
4480
4481         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4482                 return;
4483         if (parameters[0][0] == '#')
4484         {
4485                 chan = FindChan(parameters[0]);
4486                 if (chan)
4487                 {
4488                         if ((chan->noexternal) && (!has_channel(user,chan)))
4489                         {
4490                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4491                                 return;
4492                         }
4493                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4494                         {
4495                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4496                                 return;
4497                         }
4498
4499                         int MOD_RESULT = 0;
4500
4501                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4502                         if (MOD_RESULT) {
4503                                 return;
4504                         }
4505
4506                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4507
4508                         // if any users of this channel are on remote servers, broadcast the packet
4509                         char buffer[MAXBUF];
4510                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4511                         for (int j = 0; j < 255; j++)
4512                         {
4513                                 if (servers[j] != NULL)
4514                                 {
4515                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4516                                         {
4517                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4518                                         }
4519                                 }
4520                         }
4521                 }
4522                 else
4523                 {
4524                         /* no such nick/channel */
4525                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4526                 }
4527                 return;
4528         }
4529
4530         dest = Find(parameters[0]);
4531         if (dest)
4532         {
4533                 int MOD_RESULT = 0;
4534
4535                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4536                 if (MOD_RESULT) {
4537                         return;
4538                 }
4539
4540                 if (!strcmp(dest->server,user->server))
4541                 {
4542                         // direct write, same server
4543                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4544                 }
4545                 else
4546                 {
4547                         for (int j = 0; j < 255; j++)
4548                         {
4549                                 if (servers[j] != NULL)
4550                                 {
4551                                         if (!strcasecmp(servers[j]->name,dest->server))
4552                                         {
4553                                                 // direct write, same server
4554                                                 char buffer[MAXBUF];
4555                                                 snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4556                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4557                                         }
4558                                 }
4559                         }
4560                 }
4561         }
4562         else
4563         {
4564                 /* no such nick/channel */
4565                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4566         }
4567 }
4568
4569 char lst[MAXBUF];
4570
4571 char* chlist(userrec *user)
4572 {
4573         int i = 0;
4574         char cmp[MAXBUF];
4575
4576         log(DEBUG,"chlist: %s",user->nick);
4577         strcpy(lst,"");
4578         if (!user)
4579         {
4580                 return lst;
4581         }
4582         for (int i = 0; i != MAXCHANS; i++)
4583         {
4584                 if (user->chans[i].channel != NULL)
4585                 {
4586                         if (user->chans[i].channel->name)
4587                         {
4588                                 strcpy(cmp,user->chans[i].channel->name);
4589                                 strcat(cmp," ");
4590                                 if (!strstr(lst,cmp))
4591                                 {
4592                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4593                                         {
4594                                                 strcat(lst,cmode(user,user->chans[i].channel));
4595                                                 strcat(lst,user->chans[i].channel->name);
4596                                                 strcat(lst," ");
4597                                         }
4598                                 }
4599                         }
4600                 }
4601         }
4602         if (strlen(lst))
4603         {
4604                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4605         }
4606         return lst;
4607 }
4608
4609 void handle_info(char **parameters, int pcnt, userrec *user)
4610 {
4611         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4612         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4613         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4614         FOREACH_MOD OnInfo(user);
4615         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4616 }
4617
4618 void handle_time(char **parameters, int pcnt, userrec *user)
4619 {
4620         time_t rawtime;
4621         struct tm * timeinfo;
4622
4623         time ( &rawtime );
4624         timeinfo = localtime ( &rawtime );
4625         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4626
4627 }
4628
4629 void handle_whois(char **parameters, int pcnt, userrec *user)
4630 {
4631         userrec *dest;
4632         char *t;
4633
4634         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4635                 return;
4636         dest = Find(parameters[0]);
4637         if (dest)
4638         {
4639                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4640                 if (dest->registered == 7)
4641                 {
4642                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4643                         if ((user == dest) || (strchr(user->modes,'o')))
4644                         {
4645                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4646                         }
4647                         if (strcmp(chlist(dest),""))
4648                         {
4649                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4650                         }
4651                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4652                         if (strcmp(dest->awaymsg,""))
4653                         {
4654                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4655                         }
4656                         if (strchr(dest->modes,'o'))
4657                         {
4658                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4659                         }
4660                         FOREACH_MOD OnWhois(user,dest);
4661                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4662                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4663
4664                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4665                 }
4666                 else
4667                 {
4668                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4669                 }
4670         }
4671         else
4672         {
4673                 /* no such nick/channel */
4674                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4675         }
4676 }
4677
4678 void send_network_quit(const char* nick, const char* reason)
4679 {
4680                 char buffer[MAXBUF];
4681                 snprintf(buffer,MAXBUF,"Q %s :%s",nick,reason);
4682                 for (int j = 0; j < 255; j++)
4683                 {
4684                         if (servers[j] != NULL)
4685                         {
4686                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4687                                 log(DEBUG,"Sent Q token");
4688                         }
4689                 }
4690 }
4691
4692 void handle_quit(char **parameters, int pcnt, userrec *user)
4693 {
4694         user_hash::iterator iter = clientlist.find(user->nick);
4695         char* reason;
4696
4697         if (user->registered == 7)
4698         {
4699                 /* theres more to do here, but for now just close the socket */
4700                 if (pcnt == 1)
4701                 {
4702                         if (parameters[0][0] == ':')
4703                         {
4704                                 *parameters[0]++;
4705                         }
4706                         reason = parameters[0];
4707
4708                         if (strlen(reason)>MAXQUIT)
4709                         {
4710                                 reason[MAXQUIT-1] = '\0';
4711                         }
4712
4713                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4714                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4715                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4716
4717                         char buffer[MAXBUF];
4718                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4719                         for (int j = 0; j < 255; j++)
4720                         {
4721                                 if (servers[j] != NULL)
4722                                 {
4723                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4724                                         log(DEBUG,"Sent Q token");
4725                                 }
4726                         }
4727                 }
4728                 else
4729                 {
4730                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4731                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4732                         WriteCommonExcept(user,"QUIT :Client exited");
4733
4734                         char buffer[MAXBUF];
4735                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4736                         for (int j = 0; j < 255; j++)
4737                         {
4738                                 if (servers[j] != NULL)
4739                                 {
4740                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4741                                         log(DEBUG,"Sent Q token");
4742                                 }
4743                         }
4744                 }
4745                 FOREACH_MOD OnUserQuit(user);
4746                 AddWhoWas(user);
4747         }
4748
4749         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4750         fd_reap.push_back(user->fd);
4751
4752         if (iter != clientlist.end())
4753         {
4754                 clientlist.erase(iter);
4755                 log(DEBUG,"deleting user hash value %d",iter->second);
4756                 //if ((user) && (user->registered == 7)) {
4757                         //delete user;
4758                 //}
4759         }
4760
4761         if (user->registered == 7) {
4762                 purge_empty_chans();
4763         }
4764 }
4765
4766 void handle_who(char **parameters, int pcnt, userrec *user)
4767 {
4768         chanrec* Ptr = NULL;
4769
4770         /* theres more to do here, but for now just close the socket */
4771         if (pcnt == 1)
4772         {
4773                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4774                 {
4775                         if (user->chans[0].channel)
4776                         {
4777                                 Ptr = user->chans[0].channel;
4778                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4779                                 {
4780                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4781                                         {
4782                                                 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);
4783                                         }
4784                                 }
4785                         }
4786                         if (Ptr)
4787                         {
4788                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4789                         }
4790                         else
4791                         {
4792                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4793                         }
4794                         return;
4795                 }
4796                 if (parameters[0][0] == '#')
4797                 {
4798                         Ptr = FindChan(parameters[0]);
4799                         if (Ptr)
4800                         {
4801                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4802                                 {
4803                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4804                                         {
4805                                                 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);
4806                                         }
4807                                 }
4808                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4809                         }
4810                         else
4811                         {
4812                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4813                         }
4814                 }
4815                 else
4816                 {
4817                         userrec* u = Find(parameters[0]);
4818                         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);
4819                 }
4820         }
4821         if (pcnt == 2)
4822         {
4823                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4824                 {
4825                         Ptr = user->chans[0].channel;
4826                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4827                         {
4828                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4829                                 {
4830                                         if (strchr(i->second->modes,'o'))
4831                                         {
4832                                                 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);
4833                                         }
4834                                 }
4835                         }
4836                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4837                         return;
4838                 }
4839         }
4840 }
4841
4842 void handle_wallops(char **parameters, int pcnt, userrec *user)
4843 {
4844         WriteWallOps(user,"%s",parameters[0]);
4845 }
4846
4847 void handle_list(char **parameters, int pcnt, userrec *user)
4848 {
4849         chanrec* Ptr;
4850
4851         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4852         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4853         {
4854                 if ((!i->second->c_private) && (!i->second->secret))
4855                 {
4856                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4857                 }
4858         }
4859         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4860 }
4861
4862
4863 void handle_rehash(char **parameters, int pcnt, userrec *user)
4864 {
4865         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4866         ReadConfig();
4867         FOREACH_MOD OnRehash();
4868         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4869 }
4870
4871
4872 int usercnt(void)
4873 {
4874         return clientlist.size();
4875 }
4876
4877
4878 int usercount_invisible(void)
4879 {
4880         int c = 0;
4881
4882         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4883         {
4884                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4885         }
4886         return c;
4887 }
4888
4889 int usercount_opers(void)
4890 {
4891         int c = 0;
4892
4893         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4894         {
4895                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4896         }
4897         return c;
4898 }
4899
4900 int usercount_unknown(void)
4901 {
4902         int c = 0;
4903
4904         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4905         {
4906                 if ((i->second->fd) && (i->second->registered != 7))
4907                         c++;
4908         }
4909         return c;
4910 }
4911
4912 int chancount(void)
4913 {
4914         return chanlist.size();
4915 }
4916
4917 int servercount(void)
4918 {
4919         return 1;
4920 }
4921
4922 void handle_lusers(char **parameters, int pcnt, userrec *user)
4923 {
4924         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4925         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4926         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4927         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4928         WriteServ(user->fd,"254 %s :I have %d clients and 0 servers",user->nick,usercnt());
4929 }
4930
4931 void handle_admin(char **parameters, int pcnt, userrec *user)
4932 {
4933         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4934         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4935         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4936         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4937 }
4938
4939 void ShowMOTD(userrec *user)
4940 {
4941         if (!MOTD.size())
4942         {
4943                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4944                 return;
4945         }
4946         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4947         for (int i = 0; i != MOTD.size(); i++)
4948         {
4949                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4950         }
4951         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4952 }
4953
4954 void ShowRULES(userrec *user)
4955 {
4956         if (!RULES.size())
4957         {
4958                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4959                 return;
4960         }
4961         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4962         for (int i = 0; i != RULES.size(); i++)
4963         {
4964                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4965         }
4966         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4967 }
4968
4969 /* shows the message of the day, and any other on-logon stuff */
4970 void ConnectUser(userrec *user)
4971 {
4972         user->registered = 7;
4973         user->idle_lastmsg = time(NULL);
4974         log(DEBUG,"ConnectUser: %s",user->nick);
4975
4976         if (strcmp(Passwd(user),"") && (!user->haspassed))
4977         {
4978                 kill_link(user,"Invalid password");
4979                 return;
4980         }
4981         if (IsDenied(user))
4982         {
4983                 kill_link(user,"Unauthorised connection");
4984                 return;
4985         }
4986
4987         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
4988         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
4989         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
4990         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
4991         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
4992         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);
4993         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);
4994         ShowMOTD(user);
4995         FOREACH_MOD OnUserConnect(user);
4996         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
4997
4998         char buffer[MAXBUF];
4999         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);
5000         for (int j = 0; j < 255; j++)
5001         {
5002                 if (servers[j] != NULL)
5003                 {
5004                         if (strcmp(servers[j]->name,ServerName))
5005                         {
5006                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5007                                 log(DEBUG,"Sent N token");
5008                         }
5009                 }
5010         }
5011
5012 }
5013
5014 void handle_version(char **parameters, int pcnt, userrec *user)
5015 {
5016         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
5017 }
5018
5019 void handle_ping(char **parameters, int pcnt, userrec *user)
5020 {
5021         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
5022 }
5023
5024 void handle_pong(char **parameters, int pcnt, userrec *user)
5025 {
5026         // set the user as alive so they survive to next ping
5027         user->lastping = 1;
5028 }
5029
5030 void handle_motd(char **parameters, int pcnt, userrec *user)
5031 {
5032         ShowMOTD(user);
5033 }
5034
5035 void handle_rules(char **parameters, int pcnt, userrec *user)
5036 {
5037         ShowRULES(user);
5038 }
5039
5040 void handle_user(char **parameters, int pcnt, userrec *user)
5041 {
5042         if (user->registered < 3)
5043         {
5044                 if (isident(parameters[0]) == 0) {
5045                         // This kinda Sucks, According to the RFC thou, its either this,
5046                         // or "You have already registered" :p -- Craig
5047                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
5048                 }
5049                 else {
5050                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
5051                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
5052                         strncat(user->ident,parameters[0],IDENTMAX);
5053                         strncpy(user->fullname,parameters[3],128);
5054                         user->registered = (user->registered | 1);
5055                 }
5056         }
5057         else
5058         {
5059                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5060                 return;
5061         }
5062         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5063         if (user->registered == 3)
5064         {
5065                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5066                 ConnectUser(user);
5067         }
5068 }
5069
5070 void handle_userhost(char **parameters, int pcnt, userrec *user)
5071 {
5072         char Return[MAXBUF],junk[MAXBUF];
5073         sprintf(Return,"302 %s :",user->nick);
5074         for (int i = 0; i < pcnt; i++)
5075         {
5076                 userrec *u = Find(parameters[i]);
5077                 if (u)
5078                 {
5079                         if (strchr(u->modes,'o'))
5080                         {
5081                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5082                                 strcat(Return,junk);
5083                         }
5084                         else
5085                         {
5086                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5087                                 strcat(Return,junk);
5088                         }
5089                 }
5090         }
5091         WriteServ(user->fd,Return);
5092 }
5093
5094
5095 void handle_ison(char **parameters, int pcnt, userrec *user)
5096 {
5097         char Return[MAXBUF];
5098         sprintf(Return,"303 %s :",user->nick);
5099         for (int i = 0; i < pcnt; i++)
5100         {
5101                 userrec *u = Find(parameters[i]);
5102                 if (u)
5103                 {
5104                         strcat(Return,u->nick);
5105                         strcat(Return," ");
5106                 }
5107         }
5108         WriteServ(user->fd,Return);
5109 }
5110
5111
5112 void handle_away(char **parameters, int pcnt, userrec *user)
5113 {
5114         if (pcnt)
5115         {
5116                 strcpy(user->awaymsg,parameters[0]);
5117                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5118         }
5119         else
5120         {
5121                 strcpy(user->awaymsg,"");
5122                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5123         }
5124 }
5125
5126 void handle_whowas(char **parameters, int pcnt, userrec* user)
5127 {
5128         user_hash::iterator i = whowas.find(parameters[0]);
5129
5130         if (i == whowas.end())
5131         {
5132                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5133                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5134         }
5135         else
5136         {
5137                 time_t rawtime = i->second->signon;
5138                 tm *timeinfo;
5139                 char b[MAXBUF];
5140
5141                 timeinfo = localtime(&rawtime);
5142                 strcpy(b,asctime(timeinfo));
5143                 b[strlen(b)-1] = '\0';
5144
5145                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5146                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5147                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5148         }
5149
5150 }
5151
5152 void handle_trace(char **parameters, int pcnt, userrec *user)
5153 {
5154         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5155         {
5156                 if (i->second)
5157                 {
5158                         if (isnick(i->second->nick))
5159                         {
5160                                 if (strchr(i->second->modes,'o'))
5161                                 {
5162                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5163                                 }
5164                                 else
5165                                 {
5166                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5167                                 }
5168                         }
5169                         else
5170                         {
5171                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5172                         }
5173                 }
5174         }
5175 }
5176
5177 void handle_modules(char **parameters, int pcnt, userrec *user)
5178 {
5179         for (int i = 0; i < module_names.size(); i++)
5180         {
5181                         Version V = modules[i]->GetVersion();
5182                         char modulename[MAXBUF];
5183                         strncpy(modulename,module_names[i].c_str(),256);
5184                         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));
5185         }
5186 }
5187
5188 // calls a handler function for a command
5189
5190 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
5191 {
5192                 for (int i = 0; i < cmdlist.size(); i++)
5193                 {
5194                         if (!strcasecmp(cmdlist[i].command,commandname))
5195                         {
5196                                 if (cmdlist[i].handler_function)
5197                                 {
5198                                         if (pcnt>=cmdlist[i].min_params)
5199                                         {
5200                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
5201                                                 {
5202                                                         cmdlist[i].handler_function(parameters,pcnt,user);
5203                                                 }
5204                                         }
5205                                 }
5206                         }
5207                 }
5208 }
5209
5210 void handle_stats(char **parameters, int pcnt, userrec *user)
5211 {
5212         if (pcnt != 1)
5213         {
5214                 return;
5215         }
5216         if (strlen(parameters[0])>1)
5217         {
5218                 /* make the stats query 1 character long */
5219                 parameters[0][1] = '\0';
5220         }
5221
5222         /* stats m (list number of times each command has been used, plus bytecount) */
5223         if (!strcasecmp(parameters[0],"m"))
5224         {
5225                 for (int i = 0; i < cmdlist.size(); i++)
5226                 {
5227                         if (cmdlist[i].handler_function)
5228                         {
5229                                 if (cmdlist[i].use_count)
5230                                 {
5231                                         /* RPL_STATSCOMMANDS */
5232                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5233                                 }
5234                         }
5235                 }
5236
5237         }
5238
5239         /* stats z (debug and memory info) */
5240         if (!strcasecmp(parameters[0],"z"))
5241         {
5242                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5243                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5244                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5245                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5246                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5247                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5248                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5249                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5250         }
5251
5252         /* stats o */
5253         if (!strcasecmp(parameters[0],"o"))
5254         {
5255                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5256                 {
5257                         char LoginName[MAXBUF];
5258                         char HostName[MAXBUF];
5259                         char OperType[MAXBUF];
5260                         ConfValue("oper","name",i,LoginName,&config_f);
5261                         ConfValue("oper","host",i,HostName,&config_f);
5262                         ConfValue("oper","type",i,OperType,&config_f);
5263                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5264                 }
5265         }
5266
5267         /* stats l (show user I/O stats) */
5268         if (!strcasecmp(parameters[0],"l"))
5269         {
5270                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5271                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5272                 {
5273                         if (isnick(i->second->nick))
5274                         {
5275                                 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);
5276                         }
5277                         else
5278                         {
5279                                 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);
5280                         }
5281
5282                 }
5283         }
5284
5285         /* stats u (show server uptime) */
5286         if (!strcasecmp(parameters[0],"u"))
5287         {
5288                 time_t current_time = 0;
5289                 current_time = time(NULL);
5290                 time_t server_uptime = current_time - startup_time;
5291                 struct tm* stime;
5292                 stime = gmtime(&server_uptime);
5293                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5294                  * Craig suggested this, and it seemed a good idea so in it went */
5295                 if (stime->tm_year > 70)
5296                 {
5297                         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);
5298                 }
5299                 else
5300                 {
5301                         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);
5302                 }
5303         }
5304
5305         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5306         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5307
5308 }
5309
5310 void handle_connect(char **parameters, int pcnt, userrec *user)
5311 {
5312         char Link_ServerName[1024];
5313         char Link_IPAddr[1024];
5314         char Link_Port[1024];
5315         char Link_Pass[1024];
5316         int LinkPort;
5317         bool found = false;
5318
5319         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5320         {
5321                 ConfValue("link","name",i,Link_ServerName,&config_f);
5322                 ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5323                 ConfValue("link","port",i,Link_Port,&config_f);
5324                 ConfValue("link","sendpass",i,Link_Pass,&config_f);
5325                 log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5326                 LinkPort = atoi(Link_Port);
5327                 if (match(Link_ServerName,parameters[0])) {
5328                         found = true;
5329                 }
5330         }
5331
5332         if (!found) {
5333                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5334                 return;
5335         }
5336
5337         // TODO: Perform a check here to stop a server being linked twice!
5338
5339         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5340
5341         if (me[defaultRoute])
5342         {
5343
5344                 // at this point parameters[0] is an ip in a string.
5345                 // TODO: Look this up from the <link> blocks instead!
5346                 for (int j = 0; j < 255; j++) {
5347                         if (servers[j] == NULL) {
5348                                 servers[j] = new serverrec;
5349                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
5350                                 servers[j]->internal_port = LinkPort;
5351                                 strcpy(servers[j]->name,Link_ServerName);
5352                                 log(DEBUG,"Allocated new serverrec");
5353                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
5354                                 {
5355                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
5356                                 }
5357                                 return;
5358                         }
5359                 }
5360                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
5361         }
5362         else
5363         {
5364                 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);
5365         }
5366 }
5367
5368 void handle_squit(char **parameters, int pcnt, userrec *user)
5369 {
5370         // send out an squit across the mesh and then clear the server list (for local squit)
5371 }
5372
5373 char islast(serverrec* s)
5374 {
5375         char c = '`';
5376         for (int j = 0; j < 255; j++)
5377         {
5378                 if (servers[j] != NULL)
5379                 {
5380                         c = '|';
5381                 }
5382                 if (servers[j] == s)
5383                 {
5384                         c = '`';
5385                 }
5386         }
5387         return c;
5388 }
5389
5390 void handle_links(char **parameters, int pcnt, userrec *user)
5391 {
5392         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5393         for (int j = 0; j < 255; j++)
5394         {
5395                 if (servers[j] != NULL)
5396                 {
5397                         WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,servers[j]->name,ServerName,servers[j]->description);
5398                 }
5399         }
5400         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5401 }
5402
5403 void handle_map(char **parameters, int pcnt, userrec *user)
5404 {
5405         WriteServ(user->fd,"006 %s :%s",user->nick,ServerName);
5406         for (int j = 0; j < 255; j++)
5407         {
5408                 if (servers[j] != NULL)
5409                 {
5410                         WriteServ(user->fd,"006 %s :%c-%s",user->nick,islast(servers[j]),servers[j]->name);
5411                 }
5412         }
5413         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5414 }
5415
5416
5417 void handle_oper(char **parameters, int pcnt, userrec *user)
5418 {
5419         char LoginName[MAXBUF];
5420         char Password[MAXBUF];
5421         char OperType[MAXBUF];
5422         char TypeName[MAXBUF];
5423         char Hostname[MAXBUF];
5424         int i,j;
5425
5426         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5427         {
5428                 ConfValue("oper","name",i,LoginName,&config_f);
5429                 ConfValue("oper","password",i,Password,&config_f);
5430                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5431                 {
5432                         /* correct oper credentials */
5433                         ConfValue("oper","type",i,OperType,&config_f);
5434                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5435                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5436                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5437                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5438                         {
5439                                 ConfValue("type","name",j,TypeName,&config_f);
5440                                 if (!strcmp(TypeName,OperType))
5441                                 {
5442                                         /* found this oper's opertype */
5443                                         ConfValue("type","host",j,Hostname,&config_f);
5444                                         strncpy(user->dhost,Hostname,256);
5445                                 }
5446                         }
5447                         if (!strchr(user->modes,'o'))
5448                         {
5449                                 strcat(user->modes,"o");
5450                         }
5451                         FOREACH_MOD OnOper(user);
5452                         return;
5453                 }
5454         }
5455         /* no such oper */
5456         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5457         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5458 }
5459
5460 void handle_nick(char **parameters, int pcnt, userrec *user)
5461 {
5462         if (pcnt < 1)
5463         {
5464                 log(DEBUG,"not enough params for handle_nick");
5465                 return;
5466         }
5467         if (!parameters[0])
5468         {
5469                 log(DEBUG,"invalid parameter passed to handle_nick");
5470                 return;
5471         }
5472         if (!strlen(parameters[0]))
5473         {
5474                 log(DEBUG,"zero length new nick passed to handle_nick");
5475                 return;
5476         }
5477         if (!user)
5478         {
5479                 log(DEBUG,"invalid user passed to handle_nick");
5480                 return;
5481         }
5482         if (!user->nick)
5483         {
5484                 log(DEBUG,"invalid old nick passed to handle_nick");
5485                 return;
5486         }
5487         if (!strcasecmp(user->nick,parameters[0]))
5488         {
5489                 log(DEBUG,"old nick is new nick, skipping");
5490                 return;
5491         }
5492         else
5493         {
5494                 if (strlen(parameters[0]) > 1)
5495                 {
5496                         if (parameters[0][0] == ':')
5497                         {
5498                                 *parameters[0]++;
5499                         }
5500                 }
5501                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5502                 {
5503                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5504                         return;
5505                 }
5506         }
5507         if (isnick(parameters[0]) == 0)
5508         {
5509                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5510                 return;
5511         }
5512
5513         if (user->registered == 7)
5514         {
5515                 WriteCommon(user,"NICK %s",parameters[0]);
5516
5517                 // Q token must go to ALL servers!!!
5518                 char buffer[MAXBUF];
5519                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5520                 for (int j = 0; j < 255; j++)
5521                 {
5522                         if (servers[j] != NULL)
5523                         {
5524                                 if (strcmp(servers[j]->name,ServerName))
5525                                 {
5526                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5527                                         log(DEBUG,"Sent n token");
5528                                 }
5529                         }
5530                 }
5531
5532         }
5533
5534         /* change the nick of the user in the users_hash */
5535         user = ReHashNick(user->nick, parameters[0]);
5536         /* actually change the nick within the record */
5537         if (!user) return;
5538         if (!user->nick) return;
5539
5540         strncpy(user->nick, parameters[0],NICKMAX);
5541
5542         log(DEBUG,"new nick set: %s",user->nick);
5543
5544         if (user->registered < 3)
5545                 user->registered = (user->registered | 2);
5546         if (user->registered == 3)
5547         {
5548                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5549                 ConnectUser(user);
5550         }
5551         log(DEBUG,"exit nickchange: %s",user->nick);
5552 }
5553
5554 void force_nickchange(userrec* user,const char* newnick)
5555 {
5556         char nick[MAXBUF];
5557         strcpy(nick,"");
5558
5559         if (user)
5560         {
5561                 if (newnick)
5562                 {
5563                         strncpy(nick,newnick,MAXBUF);
5564                 }
5565                 if (user->registered == 7)
5566                 {
5567                         char* pars[1];
5568                         pars[0] = nick;
5569                         handle_nick(pars,1,user);
5570                 }
5571         }
5572 }
5573
5574
5575 int process_parameters(char **command_p,char *parameters)
5576 {
5577         int i = 0;
5578         int j = 0;
5579         int q = 0;
5580         q = strlen(parameters);
5581         if (!q)
5582         {
5583                 /* no parameters, command_p invalid! */
5584                 return 0;
5585         }
5586         if (parameters[0] == ':')
5587         {
5588                 command_p[0] = parameters+1;
5589                 return 1;
5590         }
5591         if (q)
5592         {
5593                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5594                 {
5595                         /* only one parameter */
5596                         command_p[0] = parameters;
5597                         if (parameters[0] == ':')
5598                         {
5599                                 if (strchr(parameters,' ') != NULL)
5600                                 {
5601                                         command_p[0]++;
5602                                 }
5603                         }
5604                         return 1;
5605                 }
5606         }
5607         command_p[j++] = parameters;
5608         for (int i = 0; i <= q; i++)
5609         {
5610                 if (parameters[i] == ' ')
5611                 {
5612                         command_p[j++] = parameters+i+1;
5613                         parameters[i] = '\0';
5614                         if (command_p[j-1][0] == ':')
5615                         {
5616                                 *command_p[j-1]++; /* remove dodgy ":" */
5617                                 break;
5618                                 /* parameter like this marks end of the sequence */
5619                         }
5620                 }
5621         }
5622         return j; /* returns total number of items in the list */
5623 }
5624
5625 void process_command(userrec *user, char* cmd)
5626 {
5627         char *parameters;
5628         char *command;
5629         char *command_p[127];
5630         char p[MAXBUF], temp[MAXBUF];
5631         int i, j, items, cmd_found;
5632
5633         for (int i = 0; i < 127; i++)
5634                 command_p[i] = NULL;
5635
5636         if (!user)
5637         {
5638                 return;
5639         }
5640         if (!cmd)
5641         {
5642                 return;
5643         }
5644         if (!strcmp(cmd,""))
5645         {
5646                 return;
5647         }
5648
5649         int total_params = 0;
5650         if (strlen(cmd)>2)
5651         {
5652                 for (int q = 0; q < strlen(cmd)-1; q++)
5653                 {
5654                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5655                         {
5656                                 total_params++;
5657                                 // found a 'trailing', we dont count them after this.
5658                                 break;
5659                         }
5660                         if (cmd[q] == ' ')
5661                                 total_params++;
5662                 }
5663         }
5664
5665         // another phidjit bug...
5666         if (total_params > 126)
5667         {
5668                 kill_link(user,"Protocol violation (1)");
5669                 return;
5670         }
5671
5672         strcpy(temp,cmd);
5673
5674         string tmp = cmd;
5675         FOREACH_MOD OnServerRaw(tmp,true);
5676         const char* cmd2 = tmp.c_str();
5677         snprintf(cmd,512,"%s",cmd2);
5678
5679         if (!strchr(cmd,' '))
5680         {
5681                 /* no parameters, lets skip the formalities and not chop up
5682                  * the string */
5683                 log(DEBUG,"About to preprocess command with no params");
5684                 items = 0;
5685                 command_p[0] = NULL;
5686                 parameters = NULL;
5687                 for (int i = 0; i <= strlen(cmd); i++)
5688                 {
5689                         cmd[i] = toupper(cmd[i]);
5690                 }
5691                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5692                 command = cmd;
5693         }
5694         else
5695         {
5696                 strcpy(cmd,"");
5697                 j = 0;
5698                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5699                 for (int i = 0; i < strlen(temp); i++)
5700                 {
5701                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5702                         {
5703                                 cmd[j++] = temp[i];
5704                                 cmd[j] = 0;
5705                         }
5706                 }
5707                 /* split the full string into a command plus parameters */
5708                 parameters = p;
5709                 strcpy(p," ");
5710                 command = cmd;
5711                 if (strchr(cmd,' '))
5712                 {
5713                         for (int i = 0; i <= strlen(cmd); i++)
5714                         {
5715                                 /* capitalise the command ONLY, leave params intact */
5716                                 cmd[i] = toupper(cmd[i]);
5717                                 /* are we nearly there yet?! :P */
5718                                 if (cmd[i] == ' ')
5719                                 {
5720                                         command = cmd;
5721                                         parameters = cmd+i+1;
5722                                         cmd[i] = '\0';
5723                                         break;
5724                                 }
5725                         }
5726                 }
5727                 else
5728                 {
5729                         for (int i = 0; i <= strlen(cmd); i++)
5730                         {
5731                                 cmd[i] = toupper(cmd[i]);
5732                         }
5733                 }
5734
5735         }
5736         cmd_found = 0;
5737
5738         if (strlen(command)>MAXCOMMAND)
5739         {
5740                 kill_link(user,"Protocol violation (2)");
5741                 return;
5742         }
5743
5744         for (int x = 0; x < strlen(command); x++)
5745         {
5746                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5747                 {
5748                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5749                         {
5750                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5751                                 {
5752                                         kill_link(user,"Protocol violation (3)");
5753                                         return;
5754                                 }
5755                         }
5756                 }
5757         }
5758
5759         for (int i = 0; i != cmdlist.size(); i++)
5760         {
5761                 if (strcmp(cmdlist[i].command,""))
5762                 {
5763                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5764                         {
5765                                 log(DEBUG,"Found matching command");
5766
5767                                 if (parameters)
5768                                 {
5769                                         if (strcmp(parameters,""))
5770                                         {
5771                                                 items = process_parameters(command_p,parameters);
5772                                         }
5773                                         else
5774                                         {
5775                                                 items = 0;
5776                                                 command_p[0] = NULL;
5777                                         }
5778                                 }
5779                                 else
5780                                 {
5781                                         items = 0;
5782                                         command_p[0] = NULL;
5783                                 }
5784
5785                                 if (user)
5786                                 {
5787                                         log(DEBUG,"Processing command");
5788
5789                                         /* activity resets the ping pending timer */
5790                                         user->nping = time(NULL) + 120;
5791                                         if ((items) < cmdlist[i].min_params)
5792                                         {
5793                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5794                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5795                                                 return;
5796                                         }
5797                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5798                                         {
5799                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5800                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5801                                                 cmd_found = 1;
5802                                                 return;
5803                                         }
5804                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5805                                          * deny command! */
5806                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5807                                         {
5808                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5809                                                 {
5810                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5811                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5812                                                         return;
5813                                                 }
5814                                         }
5815                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5816                                         {
5817                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5818                                                 if (cmdlist[i].handler_function)
5819                                                 {
5820                                                         /* ikky /stats counters */
5821                                                         if (temp)
5822                                                         {
5823                                                                 if (user)
5824                                                                 {
5825                                                                         user->bytes_in += strlen(temp);
5826                                                                         user->cmds_in++;
5827                                                                 }
5828                                                                 cmdlist[i].use_count++;
5829                                                                 cmdlist[i].total_bytes+=strlen(temp);
5830                                                         }
5831
5832                                                         /* WARNING: nothing may come after the
5833                                                          * command handler call, as the handler
5834                                                          * may free the user structure! */
5835
5836                                                         cmdlist[i].handler_function(command_p,items,user);
5837                                                 }
5838                                                 return;
5839                                         }
5840                                         else
5841                                         {
5842                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5843                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5844                                                 return;
5845                                         }
5846                                 }
5847                                 cmd_found = 1;
5848                         }
5849                 }
5850         }
5851         if ((!cmd_found) && (user))
5852         {
5853                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5854                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5855         }
5856 }
5857
5858
5859 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5860 {
5861         command_t comm;
5862         /* create the command and push it onto the table */
5863         strcpy(comm.command,cmd);
5864         comm.handler_function = f;
5865         comm.flags_needed = flags;
5866         comm.min_params = minparams;
5867         comm.use_count = 0;
5868         comm.total_bytes = 0;
5869         cmdlist.push_back(comm);
5870         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5871 }
5872
5873 void SetupCommandTable(void)
5874 {
5875         createcommand("USER",handle_user,0,4);
5876         createcommand("NICK",handle_nick,0,1);
5877         createcommand("QUIT",handle_quit,0,0);
5878         createcommand("VERSION",handle_version,0,0);
5879         createcommand("PING",handle_ping,0,1);
5880         createcommand("PONG",handle_pong,0,1);
5881         createcommand("ADMIN",handle_admin,0,0);
5882         createcommand("PRIVMSG",handle_privmsg,0,2);
5883         createcommand("INFO",handle_info,0,0);
5884         createcommand("TIME",handle_time,0,0);
5885         createcommand("WHOIS",handle_whois,0,1);
5886         createcommand("WALLOPS",handle_wallops,'o',1);
5887         createcommand("NOTICE",handle_notice,0,2);
5888         createcommand("JOIN",handle_join,0,1);
5889         createcommand("NAMES",handle_names,0,1);
5890         createcommand("PART",handle_part,0,1);
5891         createcommand("KICK",handle_kick,0,2);
5892         createcommand("MODE",handle_mode,0,1);
5893         createcommand("TOPIC",handle_topic,0,1);
5894         createcommand("WHO",handle_who,0,1);
5895         createcommand("MOTD",handle_motd,0,0);
5896         createcommand("RULES",handle_rules,0,0);
5897         createcommand("OPER",handle_oper,0,2);
5898         createcommand("LIST",handle_list,0,0);
5899         createcommand("DIE",handle_die,'o',1);
5900         createcommand("RESTART",handle_restart,'o',1);
5901         createcommand("KILL",handle_kill,'o',2);
5902         createcommand("REHASH",handle_rehash,'o',0);
5903         createcommand("LUSERS",handle_lusers,0,0);
5904         createcommand("STATS",handle_stats,0,1);
5905         createcommand("USERHOST",handle_userhost,0,1);
5906         createcommand("AWAY",handle_away,0,0);
5907         createcommand("ISON",handle_ison,0,0);
5908         createcommand("SUMMON",handle_summon,0,0);
5909         createcommand("USERS",handle_users,0,0);
5910         createcommand("INVITE",handle_invite,0,2);
5911         createcommand("PASS",handle_pass,0,1);
5912         createcommand("TRACE",handle_trace,'o',0);
5913         createcommand("WHOWAS",handle_whowas,0,1);
5914         createcommand("CONNECT",handle_connect,'o',1);
5915         createcommand("SQUIT",handle_squit,'o',1);
5916         createcommand("MODULES",handle_modules,'o',0);
5917         createcommand("LINKS",handle_links,0,0);
5918         createcommand("MAP",handle_map,0,0);
5919 }
5920
5921 void process_buffer(const char* cmdbuf,userrec *user)
5922 {
5923         if (!user)
5924         {
5925                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5926                 return;
5927         }
5928         char cmd[MAXBUF];
5929         int i;
5930         if (!cmdbuf)
5931         {
5932                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5933                 return;
5934         }
5935         if (!strcmp(cmdbuf,""))
5936         {
5937                 return;
5938         }
5939         strncpy(cmd,cmdbuf,MAXBUF);
5940         if (!strcmp(cmd,""))
5941         {
5942                 return;
5943         }
5944         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5945         {
5946                 cmd[strlen(cmd)-1] = '\0';
5947         }
5948         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5949         {
5950                 cmd[strlen(cmd)-1] = '\0';
5951         }
5952         if (!strcmp(cmd,""))
5953         {
5954                 return;
5955         }
5956         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5957         tidystring(cmd);
5958         if ((user) && (cmd))
5959         {
5960                 process_command(user,cmd);
5961         }
5962 }
5963
5964 void DoSync(serverrec* serv, char* udp_host,int udp_port, long MyKey)
5965 {
5966         char data[MAXBUF];
5967         // send start of sync marker: Y <timestamp>
5968         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
5969         // except the ones its receiving it from.
5970         snprintf(data,MAXBUF,"Y %d",time(NULL));
5971         serv->SendPacket(data,udp_host,udp_port,MyKey);
5972         // send users and channels
5973         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
5974         {
5975                 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);
5976                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5977                 if (strcmp(chlist(u->second),""))
5978                 {
5979                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
5980                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5981                 }
5982         }
5983         // send channel modes, topics etc...
5984         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
5985         {
5986                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
5987                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5988                 if (strcmp(c->second->topic,""))
5989                 {
5990                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
5991                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5992                 }
5993                 // send current banlist
5994
5995                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
5996                 {
5997                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
5998                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5999                 }
6000         }
6001         // send end of sync marker: E <timestamp>
6002         snprintf(data,MAXBUF,"F %d",time(NULL));
6003         serv->SendPacket(data,udp_host,udp_port,MyKey);
6004         // ircd sends its serverlist after the end of sync here
6005 }
6006
6007
6008 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6009 {
6010         char* src = strtok(params," ");
6011         char* dest = strtok(NULL," :");
6012         char* text = strtok(NULL,"\r\n");
6013         text++;
6014
6015         userrec* user = Find(src);
6016         if (user)
6017         {
6018                 userrec* dst = Find(dest);
6019
6020                 if (dst)
6021                 {
6022                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
6023                 }
6024                 else
6025                 {
6026                         chanrec* d = FindChan(dest);
6027                         if (d)
6028                         {
6029                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
6030                         }
6031                 }
6032         }
6033
6034 }
6035
6036
6037 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6038 {
6039         char* src = strtok(params," ");
6040         char* dest = strtok(NULL," :");
6041         char* text = strtok(NULL,"\r\n");
6042         text++;
6043
6044         userrec* user = Find(src);
6045         if (user)
6046         {
6047                 userrec* dst = Find(dest);
6048
6049                 if (dst)
6050                 {
6051                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
6052                 }
6053                 else
6054                 {
6055                         chanrec* d = FindChan(dest);
6056                         if (d)
6057                         {
6058                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
6059                         }
6060                 }
6061         }
6062
6063 }
6064
6065 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6066 {
6067         char* nick = strtok(params," ");
6068         char* from = strtok(params," ");
6069         char* channel = strtok(NULL," ");
6070         userrec* u = Find(nick);
6071         userrec* user = Find(from);
6072         chanrec* c = FindChan(channel);
6073         if ((c) && (u) && (user))
6074         {
6075                 u->InviteTo(c->name);
6076                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
6077         }
6078 }
6079
6080 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6081 {
6082         char* setby = strtok(params," ");
6083         char* channel = strtok(NULL," :");
6084         char* topic = strtok(NULL,"\r\n");
6085         topic++;
6086         userrec* u = Find(setby);
6087         chanrec* c = FindChan(channel);
6088         if ((c) && (u))
6089         {
6090                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
6091                 strncpy(c->topic,topic,MAXTOPIC);
6092                 strncpy(c->setby,u->nick,NICKMAX);
6093         }
6094 }
6095
6096
6097 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6098 {
6099         char* tm = strtok(params," ");
6100         char* setby = strtok(NULL," ");
6101         char* channel = strtok(NULL," :");
6102         char* topic = strtok(NULL,"\r\n");
6103         topic++;
6104         time_t TS = atoi(tm);
6105         chanrec* c = FindChan(channel);
6106         if (c)
6107         {
6108                 // in the case of topics and TS, the *NEWER*
6109                 if (TS <= c->topicset)
6110                 {
6111                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6112                         strncpy(c->topic,topic,MAXTOPIC);
6113                         strncpy(c->setby,setby,NICKMAX);
6114                 }
6115         }
6116 }
6117
6118 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6119 {
6120         char* pars[128];
6121         char original[MAXBUF],target[MAXBUF];
6122         strncpy(original,params,MAXBUF);
6123         int index = 0;
6124         char* parameter = strtok(params," ");
6125         strncpy(target,parameter,MAXBUF);
6126         while (parameter)
6127         {
6128                 pars[index++] = parameter;
6129                 parameter = strtok(NULL," ");
6130         }
6131         merge_mode(pars,index);
6132         if (FindChan(target))
6133         {
6134                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6135         }
6136         if (Find(target))
6137         {
6138                 WriteTo(NULL,Find(target),"MODE %s",original);
6139         }
6140 }
6141
6142 // m is modes set by users only (not servers) valid targets are channels or users.
6143
6144 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6145 {
6146         // m blah #chatspike +b *!test@*4
6147         char* pars[128];
6148         char original[MAXBUF];
6149         strncpy(original,params,MAXBUF);
6150
6151         if (!strchr(params,' '))
6152         {
6153                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6154                 return;
6155         }
6156
6157         int index = 0;
6158
6159         char* src = strtok(params," ");
6160         userrec* user = Find(src);
6161
6162         if (user)
6163         {
6164                 log(DEBUG,"Found user: %s",user->nick);
6165                 char* parameter = strtok(NULL," ");
6166                 while (parameter)
6167                 {
6168                         pars[index++] = parameter;
6169                         parameter = strtok(NULL," ");
6170                 }
6171
6172                 log(DEBUG,"Calling merge_mode2");
6173                 merge_mode2(pars,index,user);
6174         }
6175 }
6176
6177
6178 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6179 {
6180         char* nick = strtok(params," ");
6181         char* channel = strtok(NULL," :");
6182         char* reason = strtok(NULL,"\r\n");
6183         userrec* user = Find(nick);
6184         reason++;
6185         if (user)
6186         {
6187                 if (strcmp(reason,""))
6188                 {
6189                         del_channel(user,channel,reason,true);
6190                 }
6191                 else
6192                 {
6193                         del_channel(user,channel,NULL,true);
6194                 }
6195         }
6196 }
6197
6198 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6199 {
6200         char* nick = strtok(params," :");
6201         char* reason = strtok(NULL,"\r\n");
6202         reason++;
6203
6204         userrec* user = Find(nick);
6205
6206         if (user)
6207         {
6208                 if (strlen(reason)>MAXQUIT)
6209                 {
6210                         reason[MAXQUIT-1] = '\0';
6211                 }
6212
6213
6214                 WriteCommonExcept(user,"QUIT :%s",reason);
6215
6216                 user_hash::iterator iter = clientlist.find(user->nick);
6217
6218                 if (iter != clientlist.end())
6219                 {
6220                         log(DEBUG,"deleting user hash value %d",iter->second);
6221                         if ((iter->second) && (user->registered == 7)) {
6222                                 delete iter->second;
6223                         }
6224                         clientlist.erase(iter);
6225                 }
6226
6227                 purge_empty_chans();
6228         }
6229 }
6230
6231 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6232 {
6233         char* oldnick = strtok(params," ");
6234         char* newnick = strtok(NULL," ");
6235
6236         userrec* user = Find(oldnick);
6237
6238         if (user)
6239         {
6240                 WriteCommon(user,"NICK %s",newnick);
6241                 user = ReHashNick(user->nick, newnick);
6242                 if (!user) return;
6243                 if (!user->nick) return;
6244                 strncpy(user->nick, newnick,NICKMAX);
6245                 log(DEBUG,"new nick set: %s",user->nick);
6246         }
6247 }
6248
6249 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6250 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6251 {
6252         char* src = strtok(params," ");
6253         char* dest = strtok(NULL," ");
6254         char* channel = strtok(NULL," :");
6255         char* reason = strtok(NULL,"\r\n");
6256         reason++;
6257         userrec* s = Find(src);
6258         userrec* d = Find(dest);
6259         chanrec* c = FindChan(channel);
6260         if ((s) && (d) && (c))
6261         {
6262                 kick_channel(s,d,c,reason);
6263         }
6264 }
6265
6266 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6267 {
6268         char* tm = strtok(params," ");
6269         char* nick = strtok(NULL," ");
6270         char* host = strtok(NULL," ");
6271         char* dhost = strtok(NULL," ");
6272         char* ident = strtok(NULL," ");
6273         char* modes = strtok(NULL," ");
6274         char* server = strtok(NULL," :");
6275         char* gecos = strtok(NULL,"\r\n");
6276         gecos++;
6277         modes++;
6278         time_t TS = atoi(tm);
6279         user_hash::iterator iter = clientlist.find(nick);
6280         if (iter != clientlist.end())
6281         {
6282                 // nick collision
6283                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6284                 if (TS >= iter->second->age)
6285                 {
6286                         char str[MAXBUF];
6287                         snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6288                         WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6289                         // client on remote server is older than the local user, kill the local user
6290                         kill_link(iter->second,str);
6291                 }
6292         }
6293         clientlist[nick] = new userrec();
6294         // remote users have an fd of -1. This is so that our Write abstraction
6295         // routines know to route any messages to this record away to whatever server
6296         // theyre on.
6297         clientlist[nick]->fd = -1;
6298         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6299         strncpy(clientlist[nick]->host, host,160);
6300         strncpy(clientlist[nick]->dhost, dhost,160);
6301         strncpy(clientlist[nick]->server, server,256);
6302         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for '~'
6303         strncpy(clientlist[nick]->fullname, gecos,128);
6304         clientlist[nick]->signon = TS;
6305         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6306         clientlist[nick]->lastping = 1;
6307         clientlist[nick]->port = 0; // so is this...
6308         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6309         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6310         for (int i = 0; i < MAXCHANS; i++)
6311         {
6312                 clientlist[nick]->chans[i].channel = NULL;
6313                 clientlist[nick]->chans[i].uc_modes = 0;
6314         }
6315 }
6316
6317 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6318 {
6319         long tdiff = time(NULL) - atoi(params);
6320         if (tdiff)
6321                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6322 }
6323
6324 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6325 {
6326         // IMPORTANT NOTE
6327         // The J token currently has no timestamp - this needs looking at
6328         // because it will allow splitriding.
6329         char* nick = strtok(params," ");
6330         char* channel = strtok(NULL," ");
6331         userrec* user = Find(nick);
6332         while (channel)
6333         {
6334                 if ((user != NULL) && (strcmp(channel,"")))
6335                 {
6336                         char privilage = '\0';
6337                         if (channel[0] != '#')
6338                         {
6339                                 privilage = channel[0];
6340                                 channel++;
6341                         }
6342                         add_channel(user,channel,"",true);
6343
6344                         // now work out the privilages they should have on each channel
6345                         // and send the appropriate servermodes.
6346                         for (int i = 0; i != MAXCHANS; i++)
6347                         {
6348                                 if (user->chans[i].channel)
6349                                 {
6350                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6351                                         {
6352                                                 if (privilage == '@')
6353                                                 {
6354                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6355                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6356                                                 }
6357                                                 if (privilage == '%')
6358                                                 {
6359                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6360                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6361                                                 }
6362                                                 if (privilage == '+')
6363                                                 {
6364                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6365                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6366                                                 }
6367                                         }
6368                                 }
6369                         }
6370
6371                 }
6372                 channel = strtok(NULL," ");
6373         }
6374 }
6375
6376 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6377 {
6378         switch(token)
6379         {
6380                 // Y <TS>
6381                 // start netburst
6382                 case 'Y':
6383                         nb_start = time(NULL);
6384                         WriteOpers("Server %s is starting netburst.",source->name);
6385                 break;
6386                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6387                 // introduce remote client
6388                 case 'N':
6389                         handle_N(token,params,source,reply,udp_host,udp_port);
6390                 break;
6391                 // t <NICK> <CHANNEL> :<TOPIC>
6392                 // change a channel topic
6393                 case 't':
6394                         handle_t(token,params,source,reply,udp_host,udp_port);
6395                 break;
6396                 // i <NICK> <CHANNEL>
6397                 // invite a user to a channel
6398                 case 'i':
6399                         handle_i(token,params,source,reply,udp_host,udp_port);
6400                 break;
6401                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6402                 // kick a user from a channel
6403                 case 'k':
6404                         handle_k(token,params,source,reply,udp_host,udp_port);
6405                 break;
6406                 // n <NICK> <NEWNICK>
6407                 // change nickname of client -- a server should only be able to
6408                 // change the nicknames of clients that reside on it unless
6409                 // they are ulined.
6410                 case 'n':
6411                         handle_n(token,params,source,reply,udp_host,udp_port);
6412                 break;
6413                 // J <NICK> <CHANLIST>
6414                 // Join user to channel list, merge channel permissions
6415                 case 'J':
6416                         handle_J(token,params,source,reply,udp_host,udp_port);
6417                 break;
6418                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6419                 // change channel topic (netburst only)
6420                 case 'T':
6421                         handle_T(token,params,source,reply,udp_host,udp_port);
6422                 break;
6423                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6424                 // Server setting modes on an object
6425                 case 'M':
6426                         handle_M(token,params,source,reply,udp_host,udp_port);
6427                 break;
6428                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6429                 // User setting modes on an object
6430                 case 'm':
6431                         handle_m(token,params,source,reply,udp_host,udp_port);
6432                 break;
6433                 // P <SOURCE> <TARGET> :<TEXT>
6434                 // Send a private/channel message
6435                 case 'P':
6436                         handle_P(token,params,source,reply,udp_host,udp_port);
6437                 break;
6438                 // V <SOURCE> <TARGET> :<TEXT>
6439                 // Send a private/channel notice
6440                 case 'V':
6441                         handle_V(token,params,source,reply,udp_host,udp_port);
6442                 break;
6443                 // L <SOURCE> <CHANNEL> :<REASON>
6444                 // User parting a channel
6445                 case 'L':
6446                         handle_L(token,params,source,reply,udp_host,udp_port);
6447                 break;
6448                 // Q <SOURCE> :<REASON>
6449                 // user quitting
6450                 case 'Q':
6451                         handle_Q(token,params,source,reply,udp_host,udp_port);
6452                 break;
6453                 // F <TS>
6454                 // end netburst
6455                 case 'F':
6456                         WriteOpers("Server %s has completed netburst. (%d secs)",source->name,time(NULL)-nb_start);
6457                         handle_F(token,params,source,reply,udp_host,udp_port);
6458                 break;
6459                 // anything else
6460                 default:
6461                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6462                 break;
6463         }
6464 }
6465
6466
6467 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
6468 {
6469         char response[10240];
6470         char token = udp_msg[0];
6471         char* params = udp_msg + 2;
6472         char finalparam[1024];
6473         strcpy(finalparam," :xxxx");
6474         if (strstr(params," :")) {
6475                 strncpy(finalparam,strstr(params," :"),1024);
6476         }
6477         if (token == 'S') {
6478                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6479                 char* servername = strtok(params," ");
6480                 char* password = strtok(NULL," ");
6481                 char* serverdesc = finalparam+2;
6482                 WriteOpers("CONNECT from %s (%s)",servername,udp_host);
6483
6484
6485                 char Link_ServerName[1024];
6486                 char Link_IPAddr[1024];
6487                 char Link_Port[1024];
6488                 char Link_Pass[1024];
6489                 char Link_SendPass[1024];
6490                 int LinkPort = 0;
6491
6492                 // search for a corresponding <link> block in the config files
6493                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6494                 {
6495                         ConfValue("link","name",i,Link_ServerName,&config_f);
6496                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6497                         ConfValue("link","port",i,Link_Port,&config_f);
6498                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6499                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6500                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6501                         LinkPort = atoi(Link_Port);
6502                         if (!strcasecmp(Link_ServerName,servername)) {
6503                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6504                                         if (LinkPort == udp_port) {
6505                                                 // we have a matching link line -
6506                                                 // send a 'diminutive' server message back...
6507                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6508                                                 serv->SendPacket(response,udp_host,udp_port,0);
6509                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
6510                                                 for (int j = 0; j < 255; j++) {
6511                                                         if (servers[j] == NULL) {
6512                                                                 servers[j] = new serverrec;
6513                                                                 strcpy(servers[j]->internal_addr,udp_host);
6514                                                                 strcpy(servers[j]->name,servername);
6515                                                                 strcpy(servers[j]->description,serverdesc);
6516                                                                 servers[j]->internal_port = udp_port;
6517                                                                 // create a server record for this server
6518                                                                 snprintf(response,10240,"O %d",MyKey);
6519                                                                 serv->SendPacket(response,udp_host,udp_port,0);
6520                                                                 return;
6521                                                         }
6522                                                 }
6523                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
6524                                                 return;
6525                                         }
6526                                         else {
6527                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6528                                         }
6529                                 }
6530                                 else {
6531                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6532                                 }
6533                         }
6534                         else {
6535                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6536                         }
6537                 }
6538                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6539                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6540                 return;
6541         }
6542         else
6543         if (token == 'O') {
6544                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
6545                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
6546                 // array, which is only added by an 'S' packet or BeginLink().
6547                 for (int i = 0; i < 255; i++) {
6548                         if (servers[i] != NULL) {
6549                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
6550                                         servers[i]->key = atoi(params);
6551                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
6552                                         DoSync(serv,udp_host,udp_port,MyKey);
6553                                         return;
6554                                 }
6555                         }
6556                 }
6557                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
6558         }
6559         else
6560         if (token == 's') {
6561                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6562                 char* servername = strtok(params," ");
6563                 char* password = strtok(NULL," ");
6564                 char* serverdesc = finalparam+2;
6565
6566                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6567                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6568                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6569                 // a connect, so put out an oper alert!
6570
6571
6572
6573
6574                 // for now, just accept all, we'll fix that later.
6575                 WriteOpers("%s accepted our link credentials ",servername);
6576
6577                 char Link_ServerName[1024];
6578                 char Link_IPAddr[1024];
6579                 char Link_Port[1024];
6580                 char Link_Pass[1024];
6581                 char Link_SendPass[1024];
6582                 int LinkPort = 0;
6583
6584                 // search for a corresponding <link> block in the config files
6585                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6586                 {
6587                         ConfValue("link","name",i,Link_ServerName,&config_f);
6588                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6589                         ConfValue("link","port",i,Link_Port,&config_f);
6590                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6591                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6592                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6593                         LinkPort = atoi(Link_Port);
6594                         if (!strcasecmp(Link_ServerName,servername)) {
6595                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6596                                         if (LinkPort == udp_port) {
6597                                                 // matching link at this end too, we're all done!
6598                                                 // at this point we must begin key exchange and insert this
6599                                                 // server into our 'active' table.
6600                                                 for (int j = 0; j < 255; j++) {
6601                                                         if (servers[j] != NULL) {
6602                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6603                                                                         strcpy(servers[j]->description,serverdesc);
6604                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6605                                                                         snprintf(response,10240,"O %d",MyKey);
6606                                                                         serv->SendPacket(response,udp_host,udp_port,0);
6607                                                                         return;
6608                                                                 }
6609                                                         }
6610                                                 }
6611                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6612                                                 return;
6613
6614                                         }
6615                                         else {
6616                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6617                                         }
6618                                 }
6619                                 else {
6620                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6621                                 }
6622                         }
6623                         else {
6624                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6625                         }
6626                 }
6627                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6628                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6629                 return;
6630         }
6631         else
6632         if (token == 'E') {
6633                 char* error_message = finalparam+2;
6634                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6635                 // remove this server from any lists
6636                 for (int j = 0; j < 255; j++) {
6637                         if (servers[j] != NULL) {
6638                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6639                                         delete servers[j];
6640                                         return;
6641                                 }
6642                         }
6643                 }
6644                 return;
6645         }
6646         else {
6647
6648                 serverrec* source_server = NULL;
6649
6650                 for (int j = 0; j < 255; j++) {
6651                         if (servers[j] != NULL) {
6652                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6653                                         if (servers[j]->key == theirkey) {
6654                                                 // found a valid key for this server, can process restricted stuff here
6655                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
6656                                                 return;
6657                                         }
6658                                 }
6659                         }
6660                 }
6661
6662                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
6663         }
6664 }
6665
6666 int reap_counter = 0;
6667
6668 int InspIRCd(void)
6669 {
6670         struct sockaddr_in client, server;
6671         char addrs[MAXBUF][255];
6672         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6673         socklen_t length;
6674         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6675         int selectResult = 0, selectResult2 = 0;
6676         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6677         char resolvedHost[MAXBUF];
6678         fd_set selectFds;
6679         struct timeval tv;
6680
6681         log_file = fopen("ircd.log","a+");
6682         if (!log_file)
6683         {
6684                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6685                 Exit(ERROR);
6686         }
6687
6688         log(DEBUG,"InspIRCd: startup: begin");
6689         log(DEBUG,"$Id$");
6690         if (geteuid() == 0)
6691         {
6692                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6693                 Exit(ERROR);
6694                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6695         }
6696         SetupCommandTable();
6697         log(DEBUG,"InspIRCd: startup: default command table set up");
6698
6699         ReadConfig();
6700         if (strcmp(DieValue,""))
6701         {
6702                 printf("WARNING: %s\n\n",DieValue);
6703                 exit(0);
6704         }
6705         log(DEBUG,"InspIRCd: startup: read config");
6706
6707         int count2 = 0, count3 = 0;
6708
6709         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6710         {
6711                 ConfValue("bind","port",count,configToken,&config_f);
6712                 ConfValue("bind","address",count,Addr,&config_f);
6713                 ConfValue("bind","type",count,Type,&config_f);
6714                 if (!strcmp(Type,"servers"))
6715                 {
6716                         char Default[MAXBUF];
6717                         strcpy(Default,"no");
6718                         ConfValue("bind","default",count,Default,&config_f);
6719                         if (strchr(Default,'y'))
6720                         {
6721                                 defaultRoute = count3;
6722                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6723                         }
6724                         me[count3] = new serverrec(ServerName,100L,false);
6725                         me[count3]->CreateListener(Addr,atoi(configToken));
6726                         count3++;
6727                 }
6728                 else
6729                 {
6730                         ports[count2] = atoi(configToken);
6731                         strcpy(addrs[count2],Addr);
6732                         count2++;
6733                 }
6734                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6735         }
6736         portCount = count2;
6737         UDPportCount = count3;
6738
6739         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6740
6741         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6742
6743         printf("\n");
6744
6745         /* BugFix By Craig! :p */
6746         count = 0;
6747         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6748         {
6749                 char modfile[MAXBUF];
6750                 ConfValue("module","name",count2,configToken,&config_f);
6751                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6752                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6753                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6754                 /* If The File Doesnt exist, Trying to load it
6755                  * Will Segfault the IRCd.. So, check to see if
6756                  * it Exists, Before Proceeding. */
6757                 if (FileExists(modfile))
6758                 {
6759                         factory[count] = new ircd_module(modfile);
6760                         if (factory[count]->LastError())
6761                         {
6762                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6763                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6764                                 Exit(ERROR);
6765                         }
6766                         if (factory[count]->factory)
6767                         {
6768                                 modules[count] = factory[count]->factory->CreateModule();
6769                                 /* save the module and the module's classfactory, if
6770                                  * this isnt done, random crashes can occur :/ */
6771                                 module_names.push_back(modfile);
6772                         }
6773                         else
6774                         {
6775                                 log(DEBUG,"Unable to load %s",modfile);
6776                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6777                                 Exit(ERROR);
6778                         }
6779                         /* Increase the Count */
6780                         count++;
6781                 }
6782                 else
6783                 {
6784                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6785                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6786                 }
6787         }
6788         MODCOUNT = count - 1;
6789         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6790
6791         printf("\nInspIRCd is now running!\n");
6792
6793         startup_time = time(NULL);
6794
6795         if (nofork)
6796         {
6797                 log(VERBOSE,"Not forking as -nofork was specified");
6798         }
6799         else
6800         {
6801                 if (DaemonSeed() == ERROR)
6802                 {
6803                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6804                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6805                         Exit(ERROR);
6806                 }
6807         }
6808
6809
6810         /* setup select call */
6811         FD_ZERO(&selectFds);
6812         log(DEBUG,"InspIRCd: startup: zero selects");
6813         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
6814
6815         for (count = 0; count < portCount; count++)
6816         {
6817                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
6818                 {
6819                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
6820                         return(ERROR);
6821                 }
6822                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
6823                 {
6824                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
6825                 }
6826                 else    /* well we at least bound to one socket so we'll continue */
6827                 {
6828                         boundPortCount++;
6829                 }
6830         }
6831
6832         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
6833
6834         /* if we didn't bind to anything then abort */
6835         if (boundPortCount == 0)
6836         {
6837                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
6838                 return (ERROR);
6839         }
6840
6841         length = sizeof (client);
6842         int flip_flop = 0, udp_port = 0;
6843         char udp_msg[MAXBUF], udp_host[MAXBUF];
6844
6845         /* main loop, this never returns */
6846         for (;;)
6847         {
6848
6849                 fd_set sfd;
6850                 struct timeval tval;
6851                 FD_ZERO(&sfd);
6852
6853                 user_hash::iterator count2 = clientlist.begin();
6854
6855                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
6856                 // them in a list, then reap the list every second or so.
6857                 if (reap_counter>5000)
6858                 {
6859                         if (fd_reap.size() > 0)
6860                         {
6861                                 for( int n = 0; n < fd_reap.size(); n++)
6862                                 {
6863                                         Blocking(fd_reap[n]);
6864                                         close(fd_reap[n]);
6865                                         NonBlocking(fd_reap[n]);
6866                                 }
6867                         }
6868                         fd_reap.clear();
6869                         reap_counter=0;
6870                 }
6871
6872
6873                 for (int x = 0; x != UDPportCount; x++)
6874                 {
6875                         long theirkey = 0;
6876                         if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
6877                         {
6878                                 if (strlen(udp_msg)<1) {
6879                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
6880                         }
6881                         else
6882                         {
6883                                 FOREACH_MOD OnPacketReceive(udp_msg);
6884                                 // Packets must go back via the route they arrived on :)
6885                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
6886                                 // link packets can manipulate the usertable so beware of
6887                                 // any loops here watching the user or channels hash
6888                                 log(DEBUG,"Sync: exit 3");
6889                                 goto label;
6890                         }
6891                 }
6892         }
6893
6894
6895         while (count2 != clientlist.end())
6896         {
6897                 char data[10240];
6898                 tval.tv_usec = tval.tv_sec = 0;
6899                 FD_ZERO(&sfd);
6900                 int total_in_this_set = 0;
6901
6902                 user_hash::iterator xcount = count2;
6903                 user_hash::iterator endingiter = count2;
6904
6905                 if (!count2->second) break;
6906
6907                 if (count2->second)
6908                 if (count2->second->fd != 0)
6909                 {
6910                         // assemble up to 64 sockets into an fd_set
6911                         // to implement a pooling mechanism.
6912                         //
6913                         // This should be up to 64x faster than the
6914                         // old implementation.
6915                         while (total_in_this_set < 64)
6916                         {
6917                                 if (count2 != clientlist.end())
6918                                 {
6919                                         // we don't check the state of remote users.
6920                                         if (count2->second->fd > 0)
6921                                         {
6922                                                 FD_SET (count2->second->fd, &sfd);
6923
6924                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
6925                                                 // their connection class.
6926                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
6927                                                 {
6928                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
6929                                                         kill_link(count2->second,"Registration timeout");
6930                                                         goto label;
6931                                                 }
6932                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
6933                                                 {
6934                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
6935                                                         {
6936                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
6937                                                                 kill_link(count2->second,"Ping timeout");
6938                                                                 goto label;
6939                                                         }
6940                                                         Write(count2->second->fd,"PING :%s",ServerName);
6941                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
6942                                                         count2->second->lastping = 0;
6943                                                         count2->second->nping = time(NULL)+120;
6944                                                 }
6945                                         }
6946                                         count2++;
6947                                         total_in_this_set++;
6948                                 }
6949                                 else break;
6950                         }
6951
6952                         endingiter = count2;
6953                         count2 = xcount; // roll back to where we were
6954
6955                         int v = 0;
6956
6957                         tval.tv_usec = 0;
6958                         tval.tv_sec = 0;
6959                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
6960
6961                         // now loop through all of the items in this pool if any are waiting
6962                         //if (selectResult2 > 0)
6963                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
6964                         {
6965                                 result = EAGAIN;
6966                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
6967                                 {
6968                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
6969                                         memset(data, 0, 10240);
6970                                         result = read(count2a->second->fd, data, 10240);
6971
6972                                         if (result)
6973                                         {
6974                                                 log(DEBUG,"Read %d characters from socket",result);
6975                                                 userrec* current = count2a->second;
6976                                                 int currfd = current->fd;
6977                                                 char* l = strtok(data,"\n");
6978                                                 int floodlines = 0;
6979                                                 while (l)
6980                                                 {
6981                                                         floodlines++;
6982                                                         if ((floodlines > current->flood) && (current->flood != 0))
6983                                                         {
6984                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6985                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6986                                                                 kill_link(current,"Excess flood");
6987                                                                 goto label;
6988                                                         }
6989                                                         char sanitized[NetBufferSize];
6990                                                         memset(sanitized, 0, NetBufferSize);
6991                                                         int ptt = 0;
6992                                                         for (int pt = 0; pt < strlen(l); pt++)
6993                                                         {
6994                                                                 if (l[pt] != '\r')
6995                                                                 {
6996                                                                         sanitized[ptt++] = l[pt];
6997                                                                 }
6998                                                         }
6999                                                         sanitized[ptt] = '\0';
7000                                                         if (strlen(sanitized))
7001                                                         {
7002
7003
7004                                                                 // we're gonna re-scan to check if the nick is gone, after every
7005                                                                 // command - if it has, we're gonna bail
7006                                                                 bool find_again = false;
7007                                                                 process_buffer(sanitized,current);
7008
7009                                                                 // look for the user's record in case it's changed
7010                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
7011                                                                 {
7012                                                                         if (c2->second->fd == currfd)
7013                                                                         {
7014                                                                                 // found again, update pointer
7015                                                                                 current == c2->second;
7016                                                                                 find_again = true;
7017                                                                                 break;
7018                                                                         }
7019                                                                 }
7020                                                                 if (!find_again)
7021                                                                         goto label;
7022
7023                                                         }
7024                                                         l = strtok(NULL,"\n");
7025                                                 }
7026                                                 goto label;
7027                                         }
7028
7029                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
7030                                         {
7031                                                 log(DEBUG,"killing: %s",count2a->second->nick);
7032                                                 kill_link(count2a->second,strerror(errno));
7033                                                 goto label;
7034                                         }
7035                                 }
7036                                 // result EAGAIN means nothing read
7037                                 if (result == EAGAIN)
7038                                 {
7039                                 }
7040                                 else
7041                                 if (result == 0)
7042                                 {
7043                                         if (count2->second)
7044                                         {
7045                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
7046                                                 kill_link(count2a->second,"Client exited");
7047                                                 // must bail here? kill_link removes the hash, corrupting the iterator
7048                                                 log(DEBUG,"Bailing from client exit");
7049                                                 goto label;
7050                                         }
7051                                 }
7052                                 else if (result > 0)
7053                                 {
7054                                 }
7055                         }
7056                 }
7057                 for (int q = 0; q < total_in_this_set; q++)
7058                 {
7059                         // there is no iterator += operator :(
7060                         //if (count2 != clientlist.end())
7061                         //{
7062                                 count2++;
7063                         //}
7064                 }
7065         }
7066
7067         // set up select call
7068         for (count = 0; count < boundPortCount; count++)
7069         {
7070                 FD_SET (openSockfd[count], &selectFds);
7071         }
7072
7073         /* added timeout! select was waiting forever... wank... :/ */
7074         tv.tv_usec = 0;
7075
7076         flip_flop++;
7077         reap_counter++;
7078         if (flip_flop > 20)
7079         {
7080                 tv.tv_usec = 1;
7081                 flip_flop = 0;
7082         }
7083
7084         tv.tv_sec = 0;
7085         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
7086
7087         /* select is reporting a waiting socket. Poll them all to find out which */
7088         if (selectResult > 0)
7089         {
7090                 char target[MAXBUF], resolved[MAXBUF];
7091                 for (count = 0; count < boundPortCount; count++)
7092                 {
7093                         if (FD_ISSET (openSockfd[count], &selectFds))
7094                         {
7095                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
7096
7097                                 address_cache::iterator iter = IP.find(client.sin_addr);
7098                                 bool iscached = false;
7099                                 if (iter == IP.end())
7100                                 {
7101                                         /* ip isn't in cache, add it */
7102                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7103                                         if(CleanAndResolve(resolved, target) != TRUE)
7104                                         {
7105                                                 strncpy(resolved,target,MAXBUF);
7106                                         }
7107                                         /* hostname now in 'target' */
7108                                         IP[client.sin_addr] = new string(resolved);
7109                                         /* hostname in cache */
7110                                 }
7111                                 else
7112                                 {
7113                                         /* found ip (cached) */
7114                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7115                                         iscached = true;
7116                                 }
7117
7118                                 if (incomingSockfd < 0)
7119                                 {
7120                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7121                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7122                                 }
7123                                 else
7124                                 {
7125                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7126                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7127                                 }
7128                                 goto label;
7129                         }
7130                 }
7131         }
7132         label:
7133         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7134 }
7135 /* not reached */
7136 close (incomingSockfd);
7137 }
7138