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, bool local_only, 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         if (!local_only)
 979         {
 980                 char buffer[MAXBUF];
 981                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
 982                 for (int j = 0; j < 255; j++)
 983                 {
 984                         if (servers[j] != NULL)
 985                         {
 986                                 if (strcmp(servers[j]->name,ServerName))
 987                                 {
 988                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
 989                                         log(DEBUG,"Sent @ token");
 990                                 }
 991                         }
 992                 }
 993         }
 994 }
 995
 996 /* convert a string to lowercase. Note following special circumstances
 997  * taken from RFC 1459. Many "official" server branches still hold to this
 998  * rule so i will too;
 999  *
1000  *  Because of IRC's scandanavian origin, the characters {}| are
1001  *  considered to be the lower case equivalents of the characters []\,
1002  *  respectively. This is a critical issue when determining the
1003  *  equivalence of two nicknames.
1004  */
1005
1006 void strlower(char *n)
1007 {
1008         if (!n)
1009         {
1010                 return;
1011         }
1012         for (int i = 0; i != strlen(n); i++)
1013         {
1014                 n[i] = tolower(n[i]);
1015                 if (n[i] == '[')
1016                         n[i] = '{';
1017                 if (n[i] == ']')
1018                         n[i] = '}';
1019                 if (n[i] == '\\')
1020                         n[i] = '|';
1021         }
1022 }
1023
1024 /* verify that a user's ident and nickname is valid */
1025
1026 int isident(const char* n)
1027 {
1028         char v[MAXBUF];
1029         if (!n)
1030
1031         {
1032                 return 0;
1033         }
1034         if (!strcmp(n,""))
1035         {
1036                 return 0;
1037         }
1038         for (int i = 0; i != strlen(n); i++)
1039         {
1040                 if ((n[i] < 33) || (n[i] > 125))
1041                 {
1042                         return 0;
1043                 }
1044                 /* can't occur ANYWHERE in an Ident! */
1045                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1046                 {
1047                         return 0;
1048                 }
1049         }
1050         return 1;
1051 }
1052
1053
1054 int isnick(const char* n)
1055 {
1056         int i = 0;
1057         char v[MAXBUF];
1058         if (!n)
1059         {
1060                 return 0;
1061         }
1062         if (!strcmp(n,""))
1063         {
1064                 return 0;
1065         }
1066         if (strlen(n) > NICKMAX-1)
1067         {
1068                 return 0;
1069         }
1070         for (int i = 0; i != strlen(n); i++)
1071         {
1072                 if ((n[i] < 33) || (n[i] > 125))
1073                 {
1074                         return 0;
1075                 }
1076                 /* can't occur ANYWHERE in a nickname! */
1077                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1078                 {
1079                         return 0;
1080                 }
1081                 /* can't occur as the first char of a nickname... */
1082                 if ((strchr("0123456789",n[i])) && (!i))
1083                 {
1084                         return 0;
1085                 }
1086         }
1087         return 1;
1088 }
1089
1090 /* Find a user record by nickname and return a pointer to it */
1091
1092 userrec* Find(string nick)
1093 {
1094         user_hash::iterator iter = clientlist.find(nick);
1095
1096         if (iter == clientlist.end())
1097                 /* Couldn't find it */
1098                 return NULL;
1099
1100         return iter->second;
1101 }
1102
1103 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
1104 {
1105         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1106         {
1107                 if (i->second)
1108                 {
1109                         if (i->second->fd == fd)
1110                         {
1111                                 i->second->bytes_out+=data_out;
1112                                 i->second->cmds_out++;
1113                         }
1114                 }
1115         }
1116 }
1117
1118
1119 /* find a channel record by channel name and return a pointer to it */
1120
1121 chanrec* FindChan(const char* chan)
1122 {
1123         if (!chan)
1124         {
1125                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1126                 return NULL;
1127         }
1128
1129         chan_hash::iterator iter = chanlist.find(chan);
1130
1131         if (iter == chanlist.end())
1132                 /* Couldn't find it */
1133                 return NULL;
1134
1135         return iter->second;
1136 }
1137
1138
1139 void purge_empty_chans(void)
1140 {
1141         int go_again = 1, purge = 0;
1142
1143         while (go_again)
1144         {
1145                 go_again = 0;
1146                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1147                 {
1148                         if (i->second) {
1149                                 if (!usercount(i->second))
1150                                 {
1151                                         /* kill the record */
1152                                         if (i != chanlist.end())
1153                                         {
1154                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1155                                                 delete i->second;
1156                                                 chanlist.erase(i);
1157                                                 go_again = 1;
1158                                                 purge++;
1159                                                 break;
1160                                         }
1161                                 }
1162                                 else
1163                                 {
1164                                         log(DEBUG,"skipped purge for %s",i->second->name);
1165                                 }
1166                         }
1167                 }
1168         }
1169         log(DEBUG,"completed channel purge, killed %d",purge);
1170 }
1171
1172 /* returns the status character for a given user on a channel, e.g. @ for op,
1173  * % for halfop etc. If the user has several modes set, the highest mode
1174  * the user has must be returned. */
1175
1176 char* cmode(userrec *user, chanrec *chan)
1177 {
1178         if ((!user) || (!chan))
1179         {
1180                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1181                 return "";
1182         }
1183
1184         int i;
1185         for (int i = 0; i != MAXCHANS; i++)
1186         {
1187                 if ((user->chans[i].channel == chan) && (chan != NULL))
1188                 {
1189                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1190                         {
1191                                 return "@";
1192                         }
1193                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1194                         {
1195                                 return "%";
1196                         }
1197                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1198                         {
1199                                 return "+";
1200                         }
1201                         return "";
1202                 }
1203         }
1204 }
1205
1206 char scratch[MAXBUF];
1207 char sparam[MAXBUF];
1208
1209 char* chanmodes(chanrec *chan)
1210 {
1211         if (!chan)
1212         {
1213                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1214                 strcpy(scratch,"");
1215                 return scratch;
1216         }
1217
1218         strcpy(scratch,"");
1219         strcpy(sparam,"");
1220         if (chan->noexternal)
1221         {
1222                 strncat(scratch,"n",MAXMODES);
1223         }
1224         if (chan->topiclock)
1225         {
1226                 strncat(scratch,"t",MAXMODES);
1227         }
1228         if (strcmp(chan->key,""))
1229         {
1230                 strncat(scratch,"k",MAXMODES);
1231         }
1232         if (chan->limit)
1233         {
1234                 strncat(scratch,"l",MAXMODES);
1235         }
1236         if (chan->inviteonly)
1237         {
1238                 strncat(scratch,"i",MAXMODES);
1239         }
1240         if (chan->moderated)
1241         {
1242                 strncat(scratch,"m",MAXMODES);
1243         }
1244         if (chan->secret)
1245         {
1246                 strncat(scratch,"s",MAXMODES);
1247         }
1248         if (chan->c_private)
1249         {
1250                 strncat(scratch,"p",MAXMODES);
1251         }
1252         if (strcmp(chan->key,""))
1253         {
1254                 strncat(sparam,chan->key,MAXBUF);
1255         }
1256         if (chan->limit)
1257         {
1258                 char foo[24];
1259                 sprintf(foo," %d",chan->limit);
1260                 strncat(sparam,foo,MAXBUF);
1261         }
1262         if (strlen(chan->custom_modes))
1263         {
1264                 strncat(scratch,chan->custom_modes,MAXMODES);
1265                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1266                 {
1267                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1268                         if (extparam != "")
1269                         {
1270                                 strncat(sparam," ",MAXBUF);
1271                                 strncat(sparam,extparam.c_str(),MAXBUF);
1272                         }
1273                 }
1274         }
1275         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1276         strncat(scratch,sparam,MAXMODES);
1277         return scratch;
1278 }
1279
1280 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1281  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1282  * highest mode the user has must be returned. */
1283
1284 int cstatus(userrec *user, chanrec *chan)
1285 {
1286         if ((!chan) || (!user))
1287         {
1288                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1289                 return 0;
1290         }
1291
1292         for (int i = 0; i != MAXCHANS; i++)
1293         {
1294                 if ((user->chans[i].channel == chan) && (chan != NULL))
1295                 {
1296                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1297                         {
1298                                 return STATUS_OP;
1299                         }
1300                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1301                         {
1302                                 return STATUS_HOP;
1303                         }
1304                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1305                         {
1306                                 return STATUS_VOICE;
1307                         }
1308                         return STATUS_NORMAL;
1309                 }
1310         }
1311 }
1312
1313
1314 /* compile a userlist of a channel into a string, each nick seperated by
1315  * spaces and op, voice etc status shown as @ and + */
1316
1317 void userlist(userrec *user,chanrec *c)
1318 {
1319         if ((!c) || (!user))
1320         {
1321                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1322                 return;
1323         }
1324
1325         sprintf(list,"353 %s = %s :", user->nick, c->name);
1326         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1327         {
1328                 if (has_channel(i->second,c))
1329                 {
1330                         if (isnick(i->second->nick))
1331                         {
1332                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1333                                 {
1334                                         /* user is +i, and source not on the channel, does not show
1335                                          * nick in NAMES list */
1336                                         continue;
1337                                 }
1338                                 strcat(list,cmode(i->second,c));
1339                                 strcat(list,i->second->nick);
1340                                 strcat(list," ");
1341                                 if (strlen(list)>(480-NICKMAX))
1342                                 {
1343                                         /* list overflowed into
1344                                          * multiple numerics */
1345                                         WriteServ(user->fd,list);
1346                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1347                                 }
1348                         }
1349                 }
1350         }
1351         /* if whats left in the list isnt empty, send it */
1352         if (list[strlen(list)-1] != ':')
1353         {
1354                 WriteServ(user->fd,list);
1355         }
1356 }
1357
1358 /* return a count of the users on a specific channel accounting for
1359  * invisible users who won't increase the count. e.g. for /LIST */
1360
1361 int usercount_i(chanrec *c)
1362 {
1363         int i = 0;
1364         int count = 0;
1365
1366         if (!c)
1367         {
1368                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1369                 return 0;
1370         }
1371
1372         strcpy(list,"");
1373         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1374         {
1375                 if (i->second)
1376                 {
1377                         if (has_channel(i->second,c))
1378                         {
1379                                 if (isnick(i->second->nick))
1380                                 {
1381                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1382                                         {
1383                                                 /* user is +i, and source not on the channel, does not show
1384                                                  * nick in NAMES list */
1385                                                 continue;
1386                                         }
1387                                         count++;
1388                                 }
1389                         }
1390                 }
1391         }
1392         log(DEBUG,"usercount_i: %s %d",c->name,count);
1393         return count;
1394 }
1395
1396
1397 int usercount(chanrec *c)
1398 {
1399         int i = 0;
1400         int count = 0;
1401
1402         if (!c)
1403         {
1404                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1405                 return 0;
1406         }
1407
1408         strcpy(list,"");
1409         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1410         {
1411                 if (i->second)
1412                 {
1413                         if (has_channel(i->second,c))
1414                         {
1415                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1416                                 {
1417                                         count++;
1418                                 }
1419                         }
1420                 }
1421         }
1422         log(DEBUG,"usercount: %s %d",c->name,count);
1423         return count;
1424 }
1425
1426
1427 /* add a channel to a user, creating the record for it if needed and linking
1428  * it to the user record */
1429
1430 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1431 {
1432         if ((!user) || (!cn))
1433         {
1434                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1435                 return 0;
1436         }
1437
1438         int i = 0;
1439         chanrec* Ptr;
1440         int created = 0;
1441         char cname[MAXBUF];
1442
1443         strncpy(cname,cn,MAXBUF);
1444
1445         // we MUST declare this wherever we use FOREACH_RESULT
1446         int MOD_RESULT = 0;
1447
1448         if (strlen(cname) > CHANMAX-1)
1449         {
1450                 cname[CHANMAX-1] = '\0';
1451         }
1452
1453         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1454
1455         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1456         {
1457                 return NULL; // already on the channel!
1458         }
1459
1460
1461         if (!FindChan(cname))
1462         {
1463                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1464                 if (MOD_RESULT) {
1465                         return NULL;
1466                 }
1467
1468                 /* create a new one */
1469                 log(DEBUG,"add_channel: creating: %s",cname);
1470                 {
1471                         chanlist[cname] = new chanrec();
1472
1473                         strcpy(chanlist[cname]->name, cname);
1474                         chanlist[cname]->topiclock = 1;
1475                         chanlist[cname]->noexternal = 1;
1476                         chanlist[cname]->created = time(NULL);
1477                         strcpy(chanlist[cname]->topic, "");
1478                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1479                         chanlist[cname]->topicset = 0;
1480                         Ptr = chanlist[cname];
1481                         log(DEBUG,"add_channel: created: %s",cname);
1482                         /* set created to 2 to indicate user
1483                          * is the first in the channel
1484                          * and should be given ops */
1485                         created = 2;
1486                 }
1487         }
1488         else
1489         {
1490                 /* channel exists, just fish out a pointer to its struct */
1491                 Ptr = FindChan(cname);
1492                 if (Ptr)
1493                 {
1494                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1495
1496                         // the override flag allows us to bypass channel modes
1497                         // and bans (used by servers)
1498                         if (!override)
1499                         {
1500                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1501                                 if (MOD_RESULT) {
1502                                         return NULL;
1503                                 }
1504
1505                                 if (strcmp(Ptr->key,""))
1506                                 {
1507                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1508                                         if (!key)
1509                                         {
1510                                                 log(DEBUG,"add_channel: no key given in JOIN");
1511                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1512                                                 return NULL;
1513                                         }
1514                                         else
1515                                         {
1516                                                 log(DEBUG,"key at %p is %s",key,key);
1517                                                 if (strcasecmp(key,Ptr->key))
1518                                                 {
1519                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1520                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1521                                                         return NULL;
1522                                                 }
1523                                         }
1524                                 }
1525                                 log(DEBUG,"add_channel: no key");
1526
1527                                 if (Ptr->inviteonly)
1528                                 {
1529                                         log(DEBUG,"add_channel: channel is +i");
1530                                         if (user->IsInvited(Ptr->name))
1531                                         {
1532                                                 /* user was invited to channel */
1533                                                 /* there may be an optional channel NOTICE here */
1534                                         }
1535                                         else
1536                                         {
1537                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1538                                                 return NULL;
1539                                         }
1540                                 }
1541                                 log(DEBUG,"add_channel: channel is not +i");
1542
1543                                 if (Ptr->limit)
1544                                 {
1545                                         if (usercount(Ptr) == Ptr->limit)
1546                                         {
1547                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1548                                                 return NULL;
1549                                         }
1550                                 }
1551
1552                                 log(DEBUG,"add_channel: about to walk banlist");
1553
1554                                 /* check user against the channel banlist */
1555                                 if (Ptr)
1556                                 {
1557                                         if (Ptr->bans.size())
1558                                         {
1559                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1560                                                 {
1561                                                         if (match(user->GetFullHost(),i->data))
1562                                                         {
1563                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1564                                                                 return NULL;
1565                                                         }
1566                                                 }
1567                                         }
1568                                 }
1569
1570                                 log(DEBUG,"add_channel: bans checked");
1571
1572
1573                                 if ((Ptr) && (user))
1574                                 {
1575                                         user->RemoveInvite(Ptr->name);
1576                                 }
1577
1578                                 log(DEBUG,"add_channel: invites removed");
1579
1580                         }
1581                         else
1582                         {
1583                                 log(DEBUG,"Overridden checks");
1584                         }
1585
1586
1587                 }
1588                 created = 1;
1589         }
1590
1591         log(DEBUG,"Passed channel checks");
1592
1593         for (int i =0; i != MAXCHANS; i++)
1594         {
1595                 log(DEBUG,"Check location %d",i);
1596                 if (user->chans[i].channel == NULL)
1597                 {
1598                         log(DEBUG,"Adding into their channel list at location %d",i);
1599
1600                         if (created == 2)
1601                         {
1602                                 /* first user in is given ops */
1603                                 user->chans[i].uc_modes = UCMODE_OP;
1604                         }
1605                         else
1606                         {
1607                                 user->chans[i].uc_modes = 0;
1608                         }
1609                         user->chans[i].channel = Ptr;
1610                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1611
1612                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1613                         {
1614                                 // use the stamdard J token with no privilages.
1615                                 char buffer[MAXBUF];
1616                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1617                                 for (int j = 0; j < 255; j++)
1618                                 {
1619                                         if (servers[j] != NULL)
1620                                         {
1621                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1622                                                 log(DEBUG,"Sent J token");
1623                                         }
1624                                 }
1625                         }
1626
1627                         log(DEBUG,"Sent JOIN to client");
1628
1629                         if (Ptr->topicset)
1630                         {
1631                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1632                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1633                         }
1634                         userlist(user,Ptr);
1635                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1636                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1637                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1638                         FOREACH_MOD OnUserJoin(user,Ptr);
1639                         return Ptr;
1640                 }
1641         }
1642         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1643         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1644         return NULL;
1645 }
1646
1647 /* remove a channel from a users record, and remove the record from memory
1648  * if the channel has become empty */
1649
1650 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1651 {
1652         if ((!user) || (!cname))
1653         {
1654                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1655                 return NULL;
1656         }
1657
1658         chanrec* Ptr;
1659         int created = 0;
1660
1661         if ((!cname) || (!user))
1662         {
1663                 return NULL;
1664         }
1665
1666         Ptr = FindChan(cname);
1667
1668         if (!Ptr)
1669         {
1670                 return NULL;
1671         }
1672
1673         FOREACH_MOD OnUserPart(user,Ptr);
1674         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1675
1676         for (int i =0; i != MAXCHANS; i++)
1677         {
1678                 /* zap it from the channel list of the user */
1679                 if (user->chans[i].channel == Ptr)
1680                 {
1681                         if (reason)
1682                         {
1683                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1684
1685                                 if (!local)
1686                                 {
1687                                         char buffer[MAXBUF];
1688                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1689                                         for (int j = 0; j < 255; j++)
1690                                         {
1691                                                 if (servers[j] != NULL)
1692                                                 {
1693                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1694                                                         log(DEBUG,"Sent L token (with reason)");
1695                                                 }
1696                                         }
1697                                 }
1698
1699
1700                         }
1701                         else
1702                         {
1703                                 if (!local)
1704                                 {
1705                                         char buffer[MAXBUF];
1706                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1707                                         for (int j = 0; j < 255; j++)
1708                                         {
1709                                                 if (servers[j] != NULL)
1710                                                 {
1711                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1712                                                         log(DEBUG,"Sent L token (no reason)");
1713                                                 }
1714                                         }
1715                                 }
1716
1717                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1718                         }
1719                         user->chans[i].uc_modes = 0;
1720                         user->chans[i].channel = NULL;
1721                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1722                         break;
1723                 }
1724         }
1725
1726         /* if there are no users left on the channel */
1727         if (!usercount(Ptr))
1728         {
1729                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1730
1731                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1732
1733                 /* kill the record */
1734                 if (iter != chanlist.end())
1735                 {
1736                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1737                         delete iter->second;
1738                         chanlist.erase(iter);
1739                 }
1740         }
1741 }
1742
1743
1744 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1745 {
1746         if ((!src) || (!user) || (!Ptr) || (!reason))
1747         {
1748                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1749                 return;
1750         }
1751
1752         int i = 0;
1753         int created = 0;
1754
1755         if ((!Ptr) || (!user) || (!src))
1756         {
1757                 return;
1758         }
1759
1760         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1761
1762         if (!has_channel(user,Ptr))
1763         {
1764                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1765                 return;
1766         }
1767         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1768         {
1769                 if (cstatus(src,Ptr) == STATUS_HOP)
1770                 {
1771                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1772                 }
1773                 else
1774                 {
1775                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1776                 }
1777
1778                 return;
1779         }
1780
1781         for (int i =0; i != MAXCHANS; i++)
1782         {
1783                 /* zap it from the channel list of the user */
1784                 if (user->chans[i].channel)
1785                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1786                 {
1787                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1788                         user->chans[i].uc_modes = 0;
1789                         user->chans[i].channel = NULL;
1790                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1791                         break;
1792                 }
1793         }
1794
1795         /* if there are no users left on the channel */
1796         if (!usercount(Ptr))
1797         {
1798                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1799
1800                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1801
1802                 /* kill the record */
1803                 if (iter != chanlist.end())
1804                 {
1805                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1806                         delete iter->second;
1807                         chanlist.erase(iter);
1808                 }
1809         }
1810 }
1811
1812
1813 /* returns 1 if user u has channel c in their record, 0 if not */
1814
1815 int has_channel(userrec *u, chanrec *c)
1816 {
1817         if ((!u) || (!c))
1818         {
1819                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1820                 return 0;
1821         }
1822         for (int i =0; i != MAXCHANS; i++)
1823         {
1824                 if (u->chans[i].channel == c)
1825                 {
1826                         return 1;
1827                 }
1828         }
1829         return 0;
1830 }
1831
1832 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1833 {
1834         userrec *d;
1835         int i;
1836
1837         if ((!user) || (!dest) || (!chan))
1838         {
1839                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1840                 return 0;
1841         }
1842         if (status < STATUS_OP)
1843         {
1844                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1845                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1846                 return 0;
1847         }
1848         else
1849         {
1850                 if (!isnick(dest))
1851                 {
1852                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1853                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1854                         return 0;
1855                 }
1856                 d = Find(dest);
1857                 if (!d)
1858                 {
1859                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1860                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1861                         return 0;
1862                 }
1863                 else
1864                 {
1865                         for (int i = 0; i != MAXCHANS; i++)
1866                         {
1867                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1868                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1869                                 {
1870                                         if (d->chans[i].uc_modes & UCMODE_OP)
1871                                         {
1872                                                 /* mode already set on user, dont allow multiple */
1873                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1874                                                 return 0;
1875                                         }
1876                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1877                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1878                                         return 1;
1879                                 }
1880                         }
1881                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1882                 }
1883         }
1884         return 1;
1885 }
1886
1887 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1888 {
1889         userrec *d;
1890         int i;
1891
1892         if ((!user) || (!dest) || (!chan))
1893         {
1894                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1895                 return 0;
1896         }
1897         if (status != STATUS_OP)
1898         {
1899                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1900                 return 0;
1901         }
1902         else
1903         {
1904                 d = Find(dest);
1905                 if (!isnick(dest))
1906                 {
1907                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1908                         return 0;
1909                 }
1910                 if (!d)
1911                 {
1912                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1913                         return 0;
1914                 }
1915                 else
1916                 {
1917                         for (int i = 0; i != MAXCHANS; i++)
1918                         {
1919                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1920                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1921                                 {
1922                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1923                                         {
1924                                                 /* mode already set on user, dont allow multiple */
1925                                                 return 0;
1926                                         }
1927                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1928                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1929                                         return 1;
1930                                 }
1931                         }
1932                 }
1933         }
1934         return 1;
1935 }
1936
1937 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1938 {
1939         userrec *d;
1940         int i;
1941
1942         if ((!user) || (!dest) || (!chan))
1943         {
1944                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1945                 return 0;
1946         }
1947         if (status < STATUS_HOP)
1948         {
1949                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1950                 return 0;
1951         }
1952         else
1953         {
1954                 d = Find(dest);
1955                 if (!isnick(dest))
1956                 {
1957                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1958                         return 0;
1959                 }
1960                 if (!d)
1961                 {
1962                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1963                         return 0;
1964                 }
1965                 else
1966                 {
1967                         for (int i = 0; i != MAXCHANS; i++)
1968                         {
1969                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1970                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1971                                 {
1972                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1973                                         {
1974                                                 /* mode already set on user, dont allow multiple */
1975                                                 return 0;
1976                                         }
1977                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1978                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1979                                         return 1;
1980                                 }
1981                         }
1982                 }
1983         }
1984         return 1;
1985 }
1986
1987 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1988 {
1989         userrec *d;
1990         int i;
1991
1992         if ((!user) || (!dest) || (!chan))
1993         {
1994                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1995                 return 0;
1996         }
1997         if (status < STATUS_OP)
1998         {
1999                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
2000                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2001                 return 0;
2002         }
2003         else
2004         {
2005                 d = Find(dest);
2006                 if (!isnick(dest))
2007                 {
2008                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
2009                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2010                         return 0;
2011                 }
2012                 if (!d)
2013                 {
2014                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
2015                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2016                         return 0;
2017                 }
2018                 else
2019                 {
2020                         for (int i = 0; i != MAXCHANS; i++)
2021                         {
2022                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2023                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2024                                 {
2025                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2026                                         {
2027                                                 /* mode already set on user, dont allow multiple */
2028                                                 return 0;
2029                                         }
2030                                         d->chans[i].uc_modes ^= UCMODE_OP;
2031                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2032                                         return 1;
2033                                 }
2034                         }
2035                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
2036                 }
2037         }
2038         return 1;
2039 }
2040
2041 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2042 {
2043         userrec *d;
2044         int i;
2045
2046         if ((!user) || (!dest) || (!chan))
2047         {
2048                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2049                 return 0;
2050         }
2051         if (status != STATUS_OP)
2052         {
2053                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2054                 return 0;
2055         }
2056         else
2057         {
2058                 d = Find(dest);
2059                 if (!isnick(dest))
2060                 {
2061                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2062                         return 0;
2063                 }
2064                 if (!d)
2065                 {
2066                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2067                         return 0;
2068                 }
2069                 else
2070                 {
2071                         for (int i = 0; i != MAXCHANS; i++)
2072                         {
2073                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2074                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2075                                 {
2076                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2077                                         {
2078                                                 /* mode already set on user, dont allow multiple */
2079                                                 return 0;
2080                                         }
2081                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2082                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2083                                         return 1;
2084                                 }
2085                         }
2086                 }
2087         }
2088         return 1;
2089 }
2090
2091 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2092 {
2093         userrec *d;
2094         int i;
2095
2096         if ((!user) || (!dest) || (!chan))
2097         {
2098                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2099                 return 0;
2100         }
2101         if (status < STATUS_HOP)
2102         {
2103                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2104                 return 0;
2105         }
2106         else
2107         {
2108                 d = Find(dest);
2109                 if (!isnick(dest))
2110                 {
2111                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2112                         return 0;
2113                 }
2114                 if (!d)
2115                 {
2116                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2117                         return 0;
2118                 }
2119                 else
2120                 {
2121                         for (int i = 0; i != MAXCHANS; i++)
2122                         {
2123                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2124                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2125                                 {
2126                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2127                                         {
2128                                                 /* mode already set on user, dont allow multiple */
2129                                                 return 0;
2130                                         }
2131                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2132                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2133                                         return 1;
2134                                 }
2135                         }
2136                 }
2137         }
2138         return 1;
2139 }
2140
2141 void TidyBan(char *ban)
2142 {
2143         if (!ban) {
2144                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2145                 return;
2146         }
2147
2148         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2149
2150         strcpy(temp,ban);
2151
2152         char* pos_of_pling = strchr(temp,'!');
2153         char* pos_of_at = strchr(temp,'@');
2154
2155         pos_of_pling[0] = '\0';
2156         pos_of_at[0] = '\0';
2157         pos_of_pling++;
2158         pos_of_at++;
2159
2160         strncpy(NICK,temp,NICKMAX);
2161         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2162         strncpy(HOST,pos_of_at,160);
2163
2164         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2165 }
2166
2167 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2168 {
2169         if ((!user) || (!dest) || (!chan)) {
2170                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2171                 return 0;
2172         }
2173
2174         BanItem b;
2175         if ((!user) || (!dest) || (!chan))
2176                 return 0;
2177         if (strchr(dest,'!')==0)
2178                 return 0;
2179         if (strchr(dest,'@')==0)
2180                 return 0;
2181         for (int i = 0; i < strlen(dest); i++)
2182                 if (dest[i] < 32)
2183                         return 0;
2184         for (int i = 0; i < strlen(dest); i++)
2185                 if (dest[i] > 126)
2186                         return 0;
2187         int c = 0;
2188         for (int i = 0; i < strlen(dest); i++)
2189                 if (dest[i] == '!')
2190                         c++;
2191         if (c>1)
2192                 return 0;
2193         c = 0;
2194         for (int i = 0; i < strlen(dest); i++)
2195                 if (dest[i] == '@')
2196                         c++;
2197         if (c>1)
2198                 return 0;
2199         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2200
2201         TidyBan(dest);
2202         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2203         {
2204                 if (!strcasecmp(i->data,dest))
2205                 {
2206                         // dont allow a user to set the same ban twice
2207                         return 0;
2208                 }
2209         }
2210
2211         b.set_time = time(NULL);
2212         strncpy(b.data,dest,MAXBUF);
2213         strncpy(b.set_by,user->nick,NICKMAX);
2214         chan->bans.push_back(b);
2215         return 1;
2216 }
2217
2218 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2219 {
2220         if ((!user) || (!dest) || (!chan)) {
2221                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2222                 return 0;
2223         }
2224
2225         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2226         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2227         {
2228                 if (!strcasecmp(i->data,dest))
2229                 {
2230                         chan->bans.erase(i);
2231                         return 1;
2232                 }
2233         }
2234         return 0;
2235 }
2236
2237 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2238 {
2239         if (!parameters) {
2240                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2241                 return;
2242         }
2243
2244         char modelist[MAXBUF];
2245         char outlist[MAXBUF];
2246         char outstr[MAXBUF];
2247         char outpars[32][MAXBUF];
2248         int param = 2;
2249         int pc = 0;
2250         int ptr = 0;
2251         int mdir = 1;
2252         int r = 0;
2253         bool k_set = false, l_set = false;
2254
2255         if (pcnt < 2)
2256         {
2257                 return;
2258         }
2259
2260         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2261
2262         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2263                                         /* parameters[2] onwards are parameters for
2264                                          * modes that require them :) */
2265         strcpy(outlist,"+");
2266         mdir = 1;
2267
2268         log(DEBUG,"process_modes: modelist: %s",modelist);
2269
2270         for (ptr = 0; ptr < strlen(modelist); ptr++)
2271         {
2272                 r = 0;
2273
2274                 {
2275                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2276                         char modechar = modelist[ptr];
2277                         switch (modelist[ptr])
2278                         {
2279                                 case '-':
2280                                         if (mdir != 0)
2281                                         {
2282                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2283                                                 {
2284                                                         outlist[strlen(outlist)-1] = '-';
2285                                                 }
2286                                                 else
2287                                                 {
2288                                                         strcat(outlist,"-");
2289                                                 }
2290                                         }
2291                                         mdir = 0;
2292
2293                                 break;
2294
2295                                 case '+':
2296                                         if (mdir != 1)
2297                                         {
2298                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2299                                                 {
2300                                                         outlist[strlen(outlist)-1] = '+';
2301                                                 }
2302                                                 else
2303                                                 {
2304                                                         strcat(outlist,"+");
2305                                                 }
2306                                         }
2307                                         mdir = 1;
2308                                 break;
2309
2310                                 case 'o':
2311                                         log(DEBUG,"Ops");
2312                                         if ((param >= pcnt)) break;
2313                                         log(DEBUG,"Enough parameters left");
2314                                         if (mdir == 1)
2315                                         {
2316                                                 log(DEBUG,"calling give_ops");
2317                                                 r = give_ops(user,parameters[param++],chan,status);
2318                                         }
2319                                         else
2320                                         {
2321                                                 log(DEBUG,"calling take_ops");
2322                                                 r = take_ops(user,parameters[param++],chan,status);
2323                                         }
2324                                         if (r)
2325                                         {
2326                                                 strcat(outlist,"o");
2327                                                 strcpy(outpars[pc++],parameters[param-1]);
2328                                         }
2329                                 break;
2330
2331                                 case 'h':
2332                                         if ((param >= pcnt)) break;
2333                                         if (mdir == 1)
2334                                         {
2335                                                 r = give_hops(user,parameters[param++],chan,status);
2336                                         }
2337                                         else
2338                                         {
2339                                                 r = take_hops(user,parameters[param++],chan,status);
2340                                         }
2341                                         if (r)
2342                                         {
2343                                                 strcat(outlist,"h");
2344                                                 strcpy(outpars[pc++],parameters[param-1]);
2345                                         }
2346                                 break;
2347
2348
2349                                 case 'v':
2350                                         if ((param >= pcnt)) break;
2351                                         if (mdir == 1)
2352                                         {
2353                                                 r = give_voice(user,parameters[param++],chan,status);
2354                                         }
2355                                         else
2356                                         {
2357                                                 r = take_voice(user,parameters[param++],chan,status);
2358                                         }
2359                                         if (r)
2360                                         {
2361                                                 strcat(outlist,"v");
2362                                                 strcpy(outpars[pc++],parameters[param-1]);
2363                                         }
2364                                 break;
2365
2366                                 case 'b':
2367                                         if ((param >= pcnt)) break;
2368                                         if (mdir == 1)
2369                                         {
2370                                                 r = add_ban(user,parameters[param++],chan,status);
2371                                         }
2372                                         else
2373                                         {
2374                                                 r = take_ban(user,parameters[param++],chan,status);
2375                                         }
2376                                         if (r)
2377                                         {
2378                                                 strcat(outlist,"b");
2379                                                 strcpy(outpars[pc++],parameters[param-1]);
2380                                         }
2381                                 break;
2382
2383
2384                                 case 'k':
2385                                         if ((param >= pcnt))
2386                                                 break;
2387
2388                                         if (mdir == 1)
2389                                         {
2390                                                 if (k_set)
2391                                                         break;
2392
2393                                                 if (!strcmp(chan->key,""))
2394                                                 {
2395                                                         strcat(outlist,"k");
2396                                                         char key[MAXBUF];
2397                                                         strcpy(key,parameters[param++]);
2398                                                         if (strlen(key)>32) {
2399                                                                 key[31] = '\0';
2400                                                         }
2401                                                         strcpy(outpars[pc++],key);
2402                                                         strcpy(chan->key,key);
2403                                                         k_set = true;
2404                                                 }
2405                                         }
2406                                         else
2407                                         {
2408                                                 /* checks on -k are case sensitive and only accurate to the
2409                                                    first 32 characters */
2410                                                 char key[MAXBUF];
2411                                                 strcpy(key,parameters[param++]);
2412                                                 if (strlen(key)>32) {
2413                                                         key[31] = '\0';
2414                                                 }
2415                                                 /* only allow -k if correct key given */
2416                                                 if (!strcmp(chan->key,key))
2417                                                 {
2418                                                         strcat(outlist,"k");
2419                                                         strcpy(chan->key,"");
2420                                                         strcpy(outpars[pc++],key);
2421                                                 }
2422                                         }
2423                                 break;
2424
2425                                 case 'l':
2426                                         if (mdir == 0)
2427                                         {
2428                                                 if (chan->limit)
2429                                                 {
2430                                                         strcat(outlist,"l");
2431                                                         chan->limit = 0;
2432                                                 }
2433                                         }
2434
2435                                         if ((param >= pcnt)) break;
2436                                         if (mdir == 1)
2437                                         {
2438                                                 if (l_set)
2439                                                         break;
2440
2441                                                 bool invalid = false;
2442                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2443                                                 {
2444                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2445                                                         {
2446                                                                 invalid = true;
2447                                                         }
2448                                                 }
2449                                                 if (atoi(parameters[param]) < 1)
2450                                                 {
2451                                                         invalid = true;
2452                                                 }
2453
2454                                                 if (invalid)
2455                                                         break;
2456
2457                                                 chan->limit = atoi(parameters[param]);
2458                                                 if (chan->limit)
2459                                                 {
2460                                                         strcat(outlist,"l");
2461                                                         strcpy(outpars[pc++],parameters[param++]);
2462                                                         l_set = true;
2463                                                 }
2464                                         }
2465                                 break;
2466
2467                                 case 'i':
2468                                         if (chan->inviteonly != mdir)
2469                                         {
2470                                                 strcat(outlist,"i");
2471                                         }
2472                                         chan->inviteonly = mdir;
2473                                 break;
2474
2475                                 case 't':
2476                                         if (chan->topiclock != mdir)
2477                                         {
2478                                                 strcat(outlist,"t");
2479                                         }
2480                                         chan->topiclock = mdir;
2481                                 break;
2482
2483                                 case 'n':
2484                                         if (chan->noexternal != mdir)
2485                                         {
2486                                                 strcat(outlist,"n");
2487                                         }
2488                                         chan->noexternal = mdir;
2489                                 break;
2490
2491                                 case 'm':
2492                                         if (chan->moderated != mdir)
2493                                         {
2494                                                 strcat(outlist,"m");
2495                                         }
2496                                         chan->moderated = mdir;
2497                                 break;
2498
2499                                 case 's':
2500                                         if (chan->secret != mdir)
2501                                         {
2502                                                 strcat(outlist,"s");
2503                                                 if (chan->c_private)
2504                                                 {
2505                                                         chan->c_private = 0;
2506                                                         if (mdir)
2507                                                         {
2508                                                                 strcat(outlist,"-p+");
2509                                                         }
2510                                                         else
2511                                                         {
2512                                                                 strcat(outlist,"+p-");
2513                                                         }
2514                                                 }
2515                                         }
2516                                         chan->secret = mdir;
2517                                 break;
2518
2519                                 case 'p':
2520                                         if (chan->c_private != mdir)
2521                                         {
2522                                                 strcat(outlist,"p");
2523                                                 if (chan->secret)
2524                                                 {
2525                                                         chan->secret = 0;
2526                                                         if (mdir)
2527                                                         {
2528                                                                 strcat(outlist,"-s+");
2529                                                         }
2530                                                         else
2531                                                         {
2532                                                                 strcat(outlist,"+s-");
2533                                                         }
2534                                                 }
2535                                         }
2536                                         chan->c_private = mdir;
2537                                 break;
2538
2539                                 default:
2540                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2541                                         string_list p;
2542                                         p.clear();
2543                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2544                                         {
2545                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2546                                                 break;
2547                                         }
2548                                         if (ModeDefined(modechar,MT_CHANNEL))
2549                                         {
2550                                                 log(DEBUG,"A module has claimed this mode");
2551                                                 if (param<pcnt)
2552                                                 {
2553                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2554                                                         {
2555                                                                 p.push_back(parameters[param]);
2556                                                         }
2557                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2558                                                         {
2559                                                                 p.push_back(parameters[param]);
2560                                                         }
2561                                                 }
2562                                                 bool handled = false;
2563                                                 if (param>=pcnt)
2564                                                 {
2565                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2566                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2567                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2568                                                         {
2569                                                                 handled = true;
2570                                                                 param++;
2571                                                         }
2572                                                 }
2573                                                 for (int i = 0; i <= MODCOUNT; i++)
2574                                                 {
2575                                                         if (!handled)
2576                                                         {
2577                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2578                                                                 {
2579                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2580                                                                         char app[] = {modechar, 0};
2581                                                                         if (ptr>0)
2582                                                                         {
2583                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2584                                                                                 {
2585                                                                                         strcat(outlist, app);
2586                                                                                 }
2587                                                                                 else if (!strchr(outlist,modechar))
2588                                                                                 {
2589                                                                                         strcat(outlist, app);
2590                                                                                 }
2591                                                                         }
2592                                                                         chan->SetCustomMode(modechar,mdir);
2593                                                                         // include parameters in output if mode has them
2594                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2595                                                                         {
2596                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2597                                                                                 strcpy(outpars[pc++],parameters[param++]);
2598                                                                         }
2599                                                                         // break, because only one module can handle the mode.
2600                                                                         handled = true;
2601                                                                 }
2602                                                         }
2603                                                 }
2604                                         }
2605                                 break;
2606
2607                         }
2608                 }
2609         }
2610
2611         /* this ensures only the *valid* modes are sent out onto the network */
2612         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2613         {
2614                 outlist[strlen(outlist)-1] = '\0';
2615         }
2616         if (strcmp(outlist,""))
2617         {
2618                 strcpy(outstr,outlist);
2619                 for (ptr = 0; ptr < pc; ptr++)
2620                 {
2621                         strcat(outstr," ");
2622                         strcat(outstr,outpars[ptr]);
2623                 }
2624                 if (local)
2625                 {
2626                         log(DEBUG,"Local mode change");
2627                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2628                 }
2629                 else
2630                 {
2631                         if (servermode)
2632                         {
2633                                 if (!silent)
2634                                 {
2635                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2636                                         // M token for a usermode must go to all servers
2637                                         char buffer[MAXBUF];
2638                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
2639                                         for (int j = 0; j < 255; j++)
2640                                         {
2641                                                 if (servers[j] != NULL)
2642                                                 {
2643                                                         if (strcmp(servers[j]->name,ServerName))
2644                                                         {
2645                                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2646                                                                 log(DEBUG,"Sent M token");
2647                                                         }
2648                                                 }
2649                                         }
2650                                 }
2651
2652                         }
2653                         else
2654                         {
2655                                 if (!silent)
2656                                 {
2657                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2658                                         // M token for a usermode must go to all servers
2659                                         char buffer[MAXBUF];
2660                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2661                                         for (int j = 0; j < 255; j++)
2662                                         {
2663                                                 if (servers[j] != NULL)
2664                                                 {
2665                                                         if (strcmp(servers[j]->name,ServerName))
2666                                                         {
2667                                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2668                                                                 log(DEBUG,"Sent m token");
2669                                                         }
2670                                                 }
2671                                         }
2672                                 }
2673                         }
2674                 }
2675         }
2676 }
2677
2678 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2679
2680 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2681 {
2682         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2683         // RFC1459 specified modes
2684         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2685         {
2686                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2687                 return true;
2688         }
2689
2690         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2691         if ((strchr(sourcemodes,'o')) && (!adding))
2692         {
2693                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2694                 return true;
2695         }
2696         else if (umode == 'o')
2697         {
2698                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2699                 return false;
2700         }
2701
2702         // process any module-defined modes that need oper
2703         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2704         {
2705                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2706                 return true;
2707         }
2708         else
2709         if (ModeDefined(umode,MT_CLIENT))
2710         {
2711                 // process any module-defined modes that don't need oper
2712                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2713                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2714                 {
2715                         // no, this mode needs oper, and this user 'aint got what it takes!
2716                         return false;
2717                 }
2718                 return true;
2719         }
2720
2721         // anything else - return false.
2722         log(DEBUG,"umode %c not known by any ruleset",umode);
2723         return false;
2724 }
2725
2726 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2727 {
2728         userrec* s2;
2729         bool faked = false;
2730         if (!source)
2731         {
2732                 s2 = new userrec;
2733                 strncpy(s2->nick,ServerName,NICKMAX);
2734                 strcpy(s2->modes,"o");
2735                 s2->fd = -1;
2736                 source = s2;
2737                 faked = true;
2738         }
2739         string_list p;
2740         p.clear();
2741         if (ModeDefined(umode,MT_CLIENT))
2742         {
2743                 for (int i = 0; i <= MODCOUNT; i++)
2744                 {
2745                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2746                         {
2747                                 log(DEBUG,"Module claims umode %c",umode);
2748                                 return true;
2749                         }
2750                 }
2751                 log(DEBUG,"No module claims umode %c",umode);
2752                 if (faked)
2753                 {
2754                         delete s2;
2755                         source = NULL;
2756                 }
2757                 return false;
2758         }
2759         else
2760         {
2761                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2762                 if (faked)
2763                 {
2764                         delete s2;
2765                         source = NULL;
2766                 }
2767                 return false;
2768         }
2769 }
2770
2771 void handle_mode(char **parameters, int pcnt, userrec *user)
2772 {
2773         chanrec* Ptr;
2774         userrec* dest;
2775         int can_change,i;
2776         int direction = 1;
2777         char outpars[MAXBUF];
2778
2779         dest = Find(parameters[0]);
2780
2781         if (!user)
2782         {
2783                 return;
2784         }
2785
2786         if ((dest) && (pcnt == 1))
2787         {
2788                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2789                 return;
2790         }
2791
2792         if ((dest) && (pcnt > 1))
2793         {
2794                 char dmodes[MAXBUF];
2795                 strncpy(dmodes,dest->modes,MAXBUF);
2796                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2797
2798                 can_change = 0;
2799                 if (user != dest)
2800                 {
2801                         if (strchr(user->modes,'o'))
2802                         {
2803                                 can_change = 1;
2804                         }
2805                 }
2806                 else
2807                 {
2808                         can_change = 1;
2809                 }
2810                 if (!can_change)
2811                 {
2812                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2813                         return;
2814                 }
2815
2816                 strcpy(outpars,"+");
2817                 direction = 1;
2818
2819                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2820                         return;
2821
2822                 for (int i = 0; i < strlen(parameters[1]); i++)
2823                 {
2824                         if (parameters[1][i] == '+')
2825                         {
2826                                 if (direction != 1)
2827                                 {
2828                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2829                                         {
2830                                                 outpars[strlen(outpars)-1] = '+';
2831                                         }
2832                                         else
2833                                         {
2834                                                 strcat(outpars,"+");
2835                                         }
2836                                 }
2837                                 direction = 1;
2838                         }
2839                         else
2840                         if (parameters[1][i] == '-')
2841                         {
2842                                 if (direction != 0)
2843                                 {
2844                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2845                                         {
2846                                                 outpars[strlen(outpars)-1] = '-';
2847                                         }
2848                                         else
2849                                         {
2850                                                 strcat(outpars,"-");
2851                                         }
2852                                 }
2853                                 direction = 0;
2854                         }
2855                         else
2856                         {
2857                                 can_change = 0;
2858                                 if (strchr(user->modes,'o'))
2859                                 {
2860                                         can_change = 1;
2861                                 }
2862                                 else
2863                                 {
2864                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2865                                         {
2866                                                 can_change = 1;
2867                                         }
2868                                 }
2869                                 if (can_change)
2870                                 {
2871                                         if (direction == 1)
2872                                         {
2873                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2874                                                 {
2875                                                         char umode = parameters[1][i];
2876                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2877                                                         {
2878                                                                 dmodes[strlen(dmodes)+1]='\0';
2879                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2880                                                                 outpars[strlen(outpars)+1]='\0';
2881                                                                 outpars[strlen(outpars)] = parameters[1][i];
2882                                                         }
2883                                                 }
2884                                         }
2885                                         else
2886                                         {
2887                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2888                                                 {
2889                                                         char umode = parameters[1][i];
2890                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2891                                                         {
2892                                                                 int q = 0;
2893                                                                 char temp[MAXBUF];
2894                                                                 char moo[MAXBUF];
2895
2896                                                                 outpars[strlen(outpars)+1]='\0';
2897                                                                 outpars[strlen(outpars)] = parameters[1][i];
2898
2899                                                                 strcpy(temp,"");
2900                                                                 for (q = 0; q < strlen(dmodes); q++)
2901                                                                 {
2902                                                                         if (dmodes[q] != parameters[1][i])
2903                                                                         {
2904                                                                                 moo[0] = dmodes[q];
2905                                                                                 moo[1] = '\0';
2906                                                                                 strcat(temp,moo);
2907                                                                         }
2908                                                                 }
2909                                                                 strcpy(dmodes,temp);
2910                                                         }
2911                                                 }
2912                                         }
2913                                 }
2914                         }
2915                 }
2916                 if (strlen(outpars))
2917                 {
2918                         char b[MAXBUF];
2919                         strcpy(b,"");
2920                         int z = 0;
2921                         int i = 0;
2922                         while (i < strlen (outpars))
2923                         {
2924                                 b[z++] = outpars[i++];
2925                                 b[z] = '\0';
2926                                 if (i<strlen(outpars)-1)
2927                                 {
2928                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2929                                         {
2930                                                 // someones playing silly buggers and trying
2931                                                 // to put a +- or -+ into the line...
2932                                                 i++;
2933                                         }
2934                                 }
2935                                 if (i == strlen(outpars)-1)
2936                                 {
2937                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2938                                         {
2939                                                 i++;
2940                                         }
2941                                 }
2942                         }
2943
2944                         z = strlen(b)-1;
2945                         if ((b[z] == '-') || (b[z] == '+'))
2946                                 b[z] == '\0';
2947
2948                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2949                                 return;
2950
2951                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2952
2953                         // M token for a usermode must go to all servers
2954                         char buffer[MAXBUF];
2955                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2956                         for (int j = 0; j < 255; j++)
2957                         {
2958                                 if (servers[j] != NULL)
2959                                 {
2960                                         if (strcmp(servers[j]->name,ServerName))
2961                                         {
2962                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2963                                                 log(DEBUG,"Sent m token");
2964                                         }
2965                                 }
2966                         }
2967
2968                         if (strlen(dmodes)>MAXMODES)
2969                         {
2970                                 dmodes[MAXMODES-1] = '\0';
2971                         }
2972                         log(DEBUG,"Stripped mode line");
2973                         log(DEBUG,"Line dest is now %s",dmodes);
2974                         strncpy(dest->modes,dmodes,MAXMODES);
2975
2976                 }
2977
2978                 return;
2979         }
2980
2981         Ptr = FindChan(parameters[0]);
2982         if (Ptr)
2983         {
2984                 if (pcnt == 1)
2985                 {
2986                         /* just /modes #channel */
2987                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2988                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2989                         return;
2990                 }
2991                 else
2992                 if (pcnt == 2)
2993                 {
2994                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2995                         {
2996
2997                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2998                                 {
2999                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
3000                                 }
3001                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
3002                                 return;
3003                         }
3004                 }
3005
3006                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3007                 {
3008                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
3009                         return;
3010                 }
3011
3012                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
3013         }
3014         else
3015         {
3016                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3017         }
3018 }
3019
3020
3021
3022
3023 void server_mode(char **parameters, int pcnt, userrec *user)
3024 {
3025         chanrec* Ptr;
3026         userrec* dest;
3027         int can_change,i;
3028         int direction = 1;
3029         char outpars[MAXBUF];
3030
3031         dest = Find(parameters[0]);
3032
3033         // fix: ChroNiCk found this - we cant use this as debug if its null!
3034         if (dest)
3035         {
3036                 log(DEBUG,"server_mode on %s",dest->nick);
3037         }
3038
3039         if ((dest) && (pcnt > 1))
3040         {
3041                 log(DEBUG,"params > 1");
3042
3043                 char dmodes[MAXBUF];
3044                 strncpy(dmodes,dest->modes,MAXBUF);
3045
3046                 strcpy(outpars,"+");
3047                 direction = 1;
3048
3049                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3050                         return;
3051
3052                 for (int i = 0; i < strlen(parameters[1]); i++)
3053                 {
3054                         if (parameters[1][i] == '+')
3055                         {
3056                                 if (direction != 1)
3057                                 {
3058                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3059                                         {
3060                                                 outpars[strlen(outpars)-1] = '+';
3061                                         }
3062                                         else
3063                                         {
3064                                                 strcat(outpars,"+");
3065                                         }
3066                                 }
3067                                 direction = 1;
3068                         }
3069                         else
3070                         if (parameters[1][i] == '-')
3071                         {
3072                                 if (direction != 0)
3073                                 {
3074                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3075                                         {
3076                                                 outpars[strlen(outpars)-1] = '-';
3077                                         }
3078                                         else
3079                                         {
3080                                                 strcat(outpars,"-");
3081                                         }
3082                                 }
3083                                 direction = 0;
3084                         }
3085                         else
3086                         {
3087                                 log(DEBUG,"begin mode processing entry");
3088                                 can_change = 1;
3089                                 if (can_change)
3090                                 {
3091                                         if (direction == 1)
3092                                         {
3093                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3094                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3095                                                 {
3096                                                         char umode = parameters[1][i];
3097                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3098                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3099                                                         {
3100                                                                 dmodes[strlen(dmodes)+1]='\0';
3101                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3102                                                                 outpars[strlen(outpars)+1]='\0';
3103                                                                 outpars[strlen(outpars)] = parameters[1][i];
3104                                                         }
3105                                                 }
3106                                         }
3107                                         else
3108                                         {
3109                                                 // can only remove a mode they already have
3110                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3111                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3112                                                 {
3113                                                         char umode = parameters[1][i];
3114                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3115                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3116                                                         {
3117                                                                 int q = 0;
3118                                                                 char temp[MAXBUF];
3119                                                                 char moo[MAXBUF];
3120
3121                                                                 outpars[strlen(outpars)+1]='\0';
3122                                                                 outpars[strlen(outpars)] = parameters[1][i];
3123
3124                                                                 strcpy(temp,"");
3125                                                                 for (q = 0; q < strlen(dmodes); q++)
3126                                                                 {
3127                                                                         if (dmodes[q] != parameters[1][i])
3128                                                                         {
3129                                                                                 moo[0] = dmodes[q];
3130                                                                                 moo[1] = '\0';
3131                                                                                 strcat(temp,moo);
3132                                                                         }
3133                                                                 }
3134                                                                 strcpy(dmodes,temp);
3135                                                         }
3136                                                 }
3137                                         }
3138                                 }
3139                         }
3140                 }
3141                 if (strlen(outpars))
3142                 {
3143                         char b[MAXBUF];
3144                         strcpy(b,"");
3145                         int z = 0;
3146                         int i = 0;
3147                         while (i < strlen (outpars))
3148                         {
3149                                 b[z++] = outpars[i++];
3150                                 b[z] = '\0';
3151                                 if (i<strlen(outpars)-1)
3152                                 {
3153                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3154                                         {
3155                                                 // someones playing silly buggers and trying
3156                                                 // to put a +- or -+ into the line...
3157                                                 i++;
3158                                         }
3159                                 }
3160                                 if (i == strlen(outpars)-1)
3161                                 {
3162                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3163                                         {
3164                                                 i++;
3165                                         }
3166                                 }
3167                         }
3168
3169                         z = strlen(b)-1;
3170                         if ((b[z] == '-') || (b[z] == '+'))
3171                                 b[z] == '\0';
3172
3173                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3174                                 return;
3175
3176                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3177
3178                         // M token for a usermode must go to all servers
3179                         char buffer[MAXBUF];
3180                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3181                         for (int j = 0; j < 255; j++)
3182                         {
3183                                 if (servers[j] != NULL)
3184                                 {
3185                                         if (strcmp(servers[j]->name,ServerName))
3186                                         {
3187                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3188                                                 log(DEBUG,"Sent m token");
3189                                         }
3190                                 }
3191                         }
3192
3193                         if (strlen(dmodes)>MAXMODES)
3194                         {
3195                                 dmodes[MAXMODES-1] = '\0';
3196                         }
3197                         log(DEBUG,"Stripped mode line");
3198                         log(DEBUG,"Line dest is now %s",dmodes);
3199                         strncpy(dest->modes,dmodes,MAXMODES);
3200
3201                 }
3202
3203                 return;
3204         }
3205
3206         Ptr = FindChan(parameters[0]);
3207         if (Ptr)
3208         {
3209                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3210         }
3211         else
3212         {
3213                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3214         }
3215 }
3216
3217
3218
3219 void merge_mode(char **parameters, int pcnt)
3220 {
3221         chanrec* Ptr;
3222         userrec* dest;
3223         int can_change,i;
3224         int direction = 1;
3225         char outpars[MAXBUF];
3226
3227         dest = Find(parameters[0]);
3228
3229         // fix: ChroNiCk found this - we cant use this as debug if its null!
3230         if (dest)
3231         {
3232                 log(DEBUG,"merge_mode on %s",dest->nick);
3233         }
3234
3235         if ((dest) && (pcnt > 1))
3236         {
3237                 log(DEBUG,"params > 1");
3238
3239                 char dmodes[MAXBUF];
3240                 strncpy(dmodes,dest->modes,MAXBUF);
3241
3242                 strcpy(outpars,"+");
3243                 direction = 1;
3244
3245                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3246                         return;
3247
3248                 for (int i = 0; i < strlen(parameters[1]); i++)
3249                 {
3250                         if (parameters[1][i] == '+')
3251                         {
3252                                 if (direction != 1)
3253                                 {
3254                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3255                                         {
3256                                                 outpars[strlen(outpars)-1] = '+';
3257                                         }
3258                                         else
3259                                         {
3260                                                 strcat(outpars,"+");
3261                                         }
3262                                 }
3263                                 direction = 1;
3264                         }
3265                         else
3266                         if (parameters[1][i] == '-')
3267                         {
3268                                 if (direction != 0)
3269                                 {
3270                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3271                                         {
3272                                                 outpars[strlen(outpars)-1] = '-';
3273                                         }
3274                                         else
3275                                         {
3276                                                 strcat(outpars,"-");
3277                                         }
3278                                 }
3279                                 direction = 0;
3280                         }
3281                         else
3282                         {
3283                                 log(DEBUG,"begin mode processing entry");
3284                                 can_change = 1;
3285                                 if (can_change)
3286                                 {
3287                                         if (direction == 1)
3288                                         {
3289                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3290                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3291                                                 {
3292                                                         char umode = parameters[1][i];
3293                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3294                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3295                                                         {
3296                                                                 dmodes[strlen(dmodes)+1]='\0';
3297                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3298                                                                 outpars[strlen(outpars)+1]='\0';
3299                                                                 outpars[strlen(outpars)] = parameters[1][i];
3300                                                         }
3301                                                 }
3302                                         }
3303                                         else
3304                                         {
3305                                                 // can only remove a mode they already have
3306                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3307                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3308                                                 {
3309                                                         char umode = parameters[1][i];
3310                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3311                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3312                                                         {
3313                                                                 int q = 0;
3314                                                                 char temp[MAXBUF];
3315                                                                 char moo[MAXBUF];
3316
3317                                                                 outpars[strlen(outpars)+1]='\0';
3318                                                                 outpars[strlen(outpars)] = parameters[1][i];
3319
3320                                                                 strcpy(temp,"");
3321                                                                 for (q = 0; q < strlen(dmodes); q++)
3322                                                                 {
3323                                                                         if (dmodes[q] != parameters[1][i])
3324                                                                         {
3325                                                                                 moo[0] = dmodes[q];
3326                                                                                 moo[1] = '\0';
3327                                                                                 strcat(temp,moo);
3328                                                                         }
3329                                                                 }
3330                                                                 strcpy(dmodes,temp);
3331                                                         }
3332                                                 }
3333                                         }
3334                                 }
3335                         }
3336                 }
3337                 if (strlen(outpars))
3338                 {
3339                         char b[MAXBUF];
3340                         strcpy(b,"");
3341                         int z = 0;
3342                         int i = 0;
3343                         while (i < strlen (outpars))
3344                         {
3345                                 b[z++] = outpars[i++];
3346                                 b[z] = '\0';
3347                                 if (i<strlen(outpars)-1)
3348                                 {
3349                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3350                                         {
3351                                                 // someones playing silly buggers and trying
3352                                                 // to put a +- or -+ into the line...
3353                                                 i++;
3354                                         }
3355                                 }
3356                                 if (i == strlen(outpars)-1)
3357                                 {
3358                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3359                                         {
3360                                                 i++;
3361                                         }
3362                                 }
3363                         }
3364
3365                         z = strlen(b)-1;
3366                         if ((b[z] == '-') || (b[z] == '+'))
3367                                 b[z] == '\0';
3368
3369                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3370                                 return;
3371
3372                         if (strlen(dmodes)>MAXMODES)
3373                         {
3374                                 dmodes[MAXMODES-1] = '\0';
3375                         }
3376                         log(DEBUG,"Stripped mode line");
3377                         log(DEBUG,"Line dest is now %s",dmodes);
3378                         strncpy(dest->modes,dmodes,MAXMODES);
3379
3380                 }
3381
3382                 return;
3383         }
3384
3385         Ptr = FindChan(parameters[0]);
3386         if (Ptr)
3387         {
3388                 userrec s2;
3389                 strncpy(s2.nick,ServerName,NICKMAX);
3390                 strcpy(s2.modes,"o");
3391                 s2.fd = -1;
3392                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3393         }
3394 }
3395
3396
3397 void merge_mode2(char **parameters, int pcnt, userrec* user)
3398 {
3399         chanrec* Ptr;
3400         userrec* dest;
3401         int can_change,i;
3402         int direction = 1;
3403         char outpars[MAXBUF];
3404
3405         dest = Find(parameters[0]);
3406
3407         // fix: ChroNiCk found this - we cant use this as debug if its null!
3408         if (dest)
3409         {
3410                 log(DEBUG,"merge_mode on %s",dest->nick);
3411         }
3412
3413         if ((dest) && (pcnt > 1))
3414         {
3415                 log(DEBUG,"params > 1");
3416
3417                 char dmodes[MAXBUF];
3418                 strncpy(dmodes,dest->modes,MAXBUF);
3419
3420                 strcpy(outpars,"+");
3421                 direction = 1;
3422
3423                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3424                         return;
3425
3426                 for (int i = 0; i < strlen(parameters[1]); i++)
3427                 {
3428                         if (parameters[1][i] == '+')
3429                         {
3430                                 if (direction != 1)
3431                                 {
3432                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3433                                         {
3434                                                 outpars[strlen(outpars)-1] = '+';
3435                                         }
3436                                         else
3437                                         {
3438                                                 strcat(outpars,"+");
3439                                         }
3440                                 }
3441                                 direction = 1;
3442                         }
3443                         else
3444                         if (parameters[1][i] == '-')
3445                         {
3446                                 if (direction != 0)
3447                                 {
3448                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3449                                         {
3450                                                 outpars[strlen(outpars)-1] = '-';
3451                                         }
3452                                         else
3453                                         {
3454                                                 strcat(outpars,"-");
3455                                         }
3456                                 }
3457                                 direction = 0;
3458                         }
3459                         else
3460                         {
3461                                 log(DEBUG,"begin mode processing entry");
3462                                 can_change = 1;
3463                                 if (can_change)
3464                                 {
3465                                         if (direction == 1)
3466                                         {
3467                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3468                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3469                                                 {
3470                                                         char umode = parameters[1][i];
3471                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3472                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3473                                                         {
3474                                                                 dmodes[strlen(dmodes)+1]='\0';
3475                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3476                                                                 outpars[strlen(outpars)+1]='\0';
3477                                                                 outpars[strlen(outpars)] = parameters[1][i];
3478                                                         }
3479                                                 }
3480                                         }
3481                                         else
3482                                         {
3483                                                 // can only remove a mode they already have
3484                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3485                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3486                                                 {
3487                                                         char umode = parameters[1][i];
3488                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3489                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3490                                                         {
3491                                                                 int q = 0;
3492                                                                 char temp[MAXBUF];
3493                                                                 char moo[MAXBUF];
3494
3495                                                                 outpars[strlen(outpars)+1]='\0';
3496                                                                 outpars[strlen(outpars)] = parameters[1][i];
3497
3498                                                                 strcpy(temp,"");
3499                                                                 for (q = 0; q < strlen(dmodes); q++)
3500                                                                 {
3501                                                                         if (dmodes[q] != parameters[1][i])
3502                                                                         {
3503                                                                                 moo[0] = dmodes[q];
3504                                                                                 moo[1] = '\0';
3505                                                                                 strcat(temp,moo);
3506                                                                         }
3507                                                                 }
3508                                                                 strcpy(dmodes,temp);
3509                                                         }
3510                                                 }
3511                                         }
3512                                 }
3513                         }
3514                 }
3515                 if (strlen(outpars))
3516                 {
3517                         char b[MAXBUF];
3518                         strcpy(b,"");
3519                         int z = 0;
3520                         int i = 0;
3521                         while (i < strlen (outpars))
3522                         {
3523                                 b[z++] = outpars[i++];
3524                                 b[z] = '\0';
3525                                 if (i<strlen(outpars)-1)
3526                                 {
3527                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3528                                         {
3529                                                 // someones playing silly buggers and trying
3530                                                 // to put a +- or -+ into the line...
3531                                                 i++;
3532                                         }
3533                                 }
3534                                 if (i == strlen(outpars)-1)
3535                                 {
3536                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3537                                         {
3538                                                 i++;
3539                                         }
3540                                 }
3541                         }
3542
3543                         z = strlen(b)-1;
3544                         if ((b[z] == '-') || (b[z] == '+'))
3545                                 b[z] == '\0';
3546
3547                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3548                                 return;
3549
3550                         WriteTo(user,dest,"MODE :%s",b);
3551
3552                         if (strlen(dmodes)>MAXMODES)
3553                         {
3554                                 dmodes[MAXMODES-1] = '\0';
3555                         }
3556                         log(DEBUG,"Stripped mode line");
3557                         log(DEBUG,"Line dest is now %s",dmodes);
3558                         strncpy(dest->modes,dmodes,MAXMODES);
3559
3560                 }
3561
3562                 return;
3563         }
3564
3565         Ptr = FindChan(parameters[0]);
3566         if (Ptr)
3567         {
3568                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3569                 {
3570                         return;
3571                 }
3572
3573                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3574         }
3575 }
3576
3577
3578
3579 /* This function pokes and hacks at a parameter list like the following:
3580  *
3581  * PART #winbot, #darkgalaxy :m00!
3582  *
3583  * to turn it into a series of individual calls like this:
3584  *
3585  * PART #winbot :m00!
3586  * PART #darkgalaxy :m00!
3587  *
3588  * The seperate calls are sent to a callback function provided by the caller
3589  * (the caller will usually call itself recursively). The callback function
3590  * must be a command handler. Calling this function on a line with no list causes
3591  * no action to be taken. You must provide a starting and ending parameter number
3592  * where the range of the list can be found, useful if you have a terminating
3593  * parameter as above which is actually not part of the list, or parameters
3594  * before the actual list as well. This code is used by many functions which
3595  * can function as "one to list" (see the RFC) */
3596
3597 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3598 {
3599         char plist[MAXBUF];
3600         char *param;
3601         char *pars[32];
3602         char blog[32][MAXBUF];
3603         char blog2[32][MAXBUF];
3604         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3605         char keystr[MAXBUF];
3606         char moo[MAXBUF];
3607
3608         for (int i = 0; i <32; i++)
3609                 strcpy(blog[i],"");
3610
3611         for (int i = 0; i <32; i++)
3612                 strcpy(blog2[i],"");
3613
3614         strcpy(moo,"");
3615         for (int i = 0; i <10; i++)
3616         {
3617                 if (!parameters[i])
3618                 {
3619                         parameters[i] = moo;
3620                 }
3621         }
3622         if (joins)
3623         {
3624                 if (pcnt > 1) /* we have a key to copy */
3625                 {
3626                         strcpy(keystr,parameters[1]);
3627                 }
3628         }
3629
3630         if (!parameters[start])
3631         {
3632                 return 0;
3633         }
3634         if (!strchr(parameters[start],','))
3635         {
3636                 return 0;
3637         }
3638         strcpy(plist,"");
3639         for (int i = start; i <= end; i++)
3640         {
3641                 if (parameters[i])
3642                 {
3643                         strcat(plist,parameters[i]);
3644                 }
3645         }
3646
3647         j = 0;
3648         param = plist;
3649
3650         t = strlen(plist);
3651         for (int i = 0; i < t; i++)
3652         {
3653                 if (plist[i] == ',')
3654                 {
3655                         plist[i] = '\0';
3656                         strcpy(blog[j++],param);
3657                         param = plist+i+1;
3658                         if (j>20)
3659                         {
3660                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3661                                 return 1;
3662                         }
3663                 }
3664         }
3665         strcpy(blog[j++],param);
3666         total = j;
3667
3668         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3669         {
3670                 strcat(keystr,",");
3671         }
3672
3673         if ((joins) && (keystr))
3674         {
3675                 if (strchr(keystr,','))
3676                 {
3677                         j = 0;
3678                         param = keystr;
3679                         t2 = strlen(keystr);
3680                         for (int i = 0; i < t2; i++)
3681                         {
3682                                 if (keystr[i] == ',')
3683                                 {
3684                                         keystr[i] = '\0';
3685                                         strcpy(blog2[j++],param);
3686                                         param = keystr+i+1;
3687                                 }
3688                         }
3689                         strcpy(blog2[j++],param);
3690                         total2 = j;
3691                 }
3692         }
3693
3694         for (j = 0; j < total; j++)
3695         {
3696                 if (blog[j])
3697                 {
3698                         pars[0] = blog[j];
3699                 }
3700                 for (q = end; q < pcnt-1; q++)
3701                 {
3702                         if (parameters[q+1])
3703                         {
3704                                 pars[q-end+1] = parameters[q+1];
3705                         }
3706                 }
3707                 if ((joins) && (parameters[1]))
3708                 {
3709                         if (pcnt > 1)
3710                         {
3711                                 pars[1] = blog2[j];
3712                         }
3713                         else
3714                         {
3715                                 pars[1] = NULL;
3716                         }
3717                 }
3718                 /* repeatedly call the function with the hacked parameter list */
3719                 if ((joins) && (pcnt > 1))
3720                 {
3721                         if (pars[1])
3722                         {
3723                                 // pars[1] already set up and containing key from blog2[j]
3724                                 fn(pars,2,u);
3725                         }
3726                         else
3727                         {
3728                                 pars[1] = parameters[1];
3729                                 fn(pars,2,u);
3730                         }
3731                 }
3732                 else
3733                 {
3734                         fn(pars,pcnt-(end-start),u);
3735                 }
3736         }
3737
3738         return 1;
3739 }
3740
3741
3742 void handle_join(char **parameters, int pcnt, userrec *user)
3743 {
3744         chanrec* Ptr;
3745         int i = 0;
3746
3747         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3748                 return;
3749         if (parameters[0][0] == '#')
3750         {
3751                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3752         }
3753 }
3754
3755
3756 void handle_part(char **parameters, int pcnt, userrec *user)
3757 {
3758         chanrec* Ptr;
3759
3760         if (pcnt > 1)
3761         {
3762                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3763                         return;
3764                 del_channel(user,parameters[0],parameters[1],false);
3765         }
3766         else
3767         {
3768                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3769                         return;
3770                 del_channel(user,parameters[0],NULL,false);
3771         }
3772 }
3773
3774 void handle_kick(char **parameters, int pcnt, userrec *user)
3775 {
3776         chanrec* Ptr = FindChan(parameters[0]);
3777         userrec* u   = Find(parameters[1]);
3778
3779         if ((!u) || (!Ptr))
3780         {
3781                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3782                 return;
3783         }
3784
3785         if (!has_channel(u,Ptr))
3786         {
3787                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3788                 return;
3789         }
3790
3791         char reason[MAXBUF];
3792
3793         if (pcnt > 2)
3794         {
3795                 strncpy(reason,parameters[2],MAXBUF);
3796                 if (strlen(reason)>MAXKICK)
3797                 {
3798                         reason[MAXKICK-1] = '\0';
3799                 }
3800
3801                 kick_channel(user,u,Ptr,reason);
3802         }
3803         else
3804         {
3805                 strcpy(reason,user->nick);
3806                 kick_channel(user,u,Ptr,reason);
3807         }
3808
3809         // this must be propogated so that channel membership is kept in step network-wide
3810
3811         char buffer[MAXBUF];
3812         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3813         for (int j = 0; j < 255; j++)
3814         {
3815                 if (servers[j] != NULL)
3816                 {
3817                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3818                         log(DEBUG,"Sent k token");
3819                 }
3820         }
3821
3822 }
3823
3824
3825 void handle_die(char **parameters, int pcnt, userrec *user)
3826 {
3827         log(DEBUG,"die: %s",user->nick);
3828         if (!strcmp(parameters[0],diepass))
3829         {
3830                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3831                 sleep(DieDelay);
3832                 Exit(ERROR);
3833         }
3834         else
3835         {
3836                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3837         }
3838 }
3839
3840 void handle_restart(char **parameters, int pcnt, userrec *user)
3841 {
3842         log(DEBUG,"restart: %s",user->nick);
3843         if (!strcmp(parameters[0],restartpass))
3844         {
3845                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3846                 sleep(DieDelay);
3847                 Exit(ERROR);
3848                 /* Will finish this later when i can be arsed :) */
3849         }
3850         else
3851         {
3852                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3853         }
3854 }
3855
3856
3857 void kill_link(userrec *user,const char* r)
3858 {
3859         user_hash::iterator iter = clientlist.find(user->nick);
3860
3861         char reason[MAXBUF];
3862
3863         strncpy(reason,r,MAXBUF);
3864
3865         if (strlen(reason)>MAXQUIT)
3866         {
3867                 reason[MAXQUIT-1] = '\0';
3868         }
3869
3870         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3871         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3872         log(DEBUG,"closing fd %d",user->fd);
3873
3874         /* bugfix, cant close() a nonblocking socket (sux!) */
3875         if (user->registered == 7) {
3876                 FOREACH_MOD OnUserQuit(user);
3877                 WriteCommonExcept(user,"QUIT :%s",reason);
3878
3879                 // Q token must go to ALL servers!!!
3880                 char buffer[MAXBUF];
3881                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3882                 for (int j = 0; j < 255; j++)
3883                 {
3884                         if (servers[j] != NULL)
3885                         {
3886                                 if (strcmp(servers[j]->name,ServerName))
3887                                 {
3888                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3889                                         log(DEBUG,"Sent Q token");
3890                                 }
3891                         }
3892                 }
3893         }
3894
3895         /* push the socket on a stack of sockets due to be closed at the next opportunity
3896          * 'Client exited' is an exception to this as it means the client side has already
3897          * closed the socket, we don't need to do it.
3898          */
3899         fd_reap.push_back(user->fd);
3900
3901         bool do_purge = false;
3902
3903         if (user->registered == 7) {
3904                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3905                 AddWhoWas(user);
3906         }
3907
3908         if (iter != clientlist.end())
3909         {
3910                 log(DEBUG,"deleting user hash value %d",iter->second);
3911                 if ((iter->second) && (user->registered == 7)) {
3912                         delete iter->second;
3913                 }
3914                 clientlist.erase(iter);
3915         }
3916
3917         if (user->registered == 7) {
3918                 purge_empty_chans();
3919         }
3920 }
3921
3922
3923 void handle_kill(char **parameters, int pcnt, userrec *user)
3924 {
3925         userrec *u = Find(parameters[0]);
3926         char killreason[MAXBUF];
3927
3928         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3929         if (u)
3930         {
3931                 if (strcmp(ServerName,u->server))
3932                 {
3933                         // remote kill
3934                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3935                         sprintf(killreason,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
3936                         WriteCommonExcept(u,"QUIT :%s",killreason);
3937                         // K token must go to ALL servers!!!
3938                         char buffer[MAXBUF];
3939                                 snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
3940                         for (int j = 0; j < 255; j++)
3941                         {
3942                                 if (servers[j] != NULL)
3943                                 {
3944                                         if (strcmp(servers[j]->name,ServerName))
3945                                         {
3946                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3947                                                 log(DEBUG,"Sent K token");
3948                                         }
3949                                 }
3950                         }
3951                         user_hash::iterator iter = clientlist.find(u->nick);
3952                         if (iter != clientlist.end())
3953                         {
3954                                 log(DEBUG,"deleting user hash value %d",iter->second);
3955                                 if ((iter->second) && (user->registered == 7)) {
3956                                         delete iter->second;
3957                                         }
3958                         clientlist.erase(iter);
3959                         }
3960                         purge_empty_chans();
3961                 }
3962                 else
3963                 {
3964                         // local kill
3965                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3966                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3967                         sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3968                         kill_link(u,killreason);
3969                 }
3970         }
3971         else
3972         {
3973                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3974         }
3975 }
3976
3977 void handle_summon(char **parameters, int pcnt, userrec *user)
3978 {
3979         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3980 }
3981
3982 void handle_users(char **parameters, int pcnt, userrec *user)
3983 {
3984         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3985 }
3986
3987
3988 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3989
3990 char* Passwd(userrec *user)
3991 {
3992         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3993         {
3994                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3995                 {
3996                         return i->pass;
3997                 }
3998         }
3999         return "";
4000 }
4001
4002 bool IsDenied(userrec *user)
4003 {
4004         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4005         {
4006                 if (match(user->host,i->host) && (i->type == CC_DENY))
4007                 {
4008                         return true;
4009                 }
4010         }
4011         return false;
4012 }
4013
4014
4015
4016 void handle_pass(char **parameters, int pcnt, userrec *user)
4017 {
4018         // Check to make sure they havnt registered -- Fix by FCS
4019         if (user->registered == 7)
4020         {
4021                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4022                 return;
4023         }
4024         if (!strcasecmp(parameters[0],Passwd(user)))
4025         {
4026                 user->haspassed = true;
4027         }
4028 }
4029
4030 void handle_invite(char **parameters, int pcnt, userrec *user)
4031 {
4032         userrec* u = Find(parameters[0]);
4033         chanrec* c = FindChan(parameters[1]);
4034
4035         if ((!c) || (!u))
4036         {
4037                 if (!c)
4038                 {
4039                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
4040                 }
4041                 else
4042                 {
4043                         if (c->inviteonly)
4044                         {
4045                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
4046                         }
4047                 }
4048
4049                 return;
4050         }
4051
4052         if (c->inviteonly)
4053         {
4054                 if (cstatus(user,c) < STATUS_HOP)
4055                 {
4056                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
4057                         return;
4058                 }
4059         }
4060         if (has_channel(u,c))
4061         {
4062                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4063                 return;
4064         }
4065         if (!has_channel(user,c))
4066         {
4067                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4068                 return;
4069         }
4070         u->InviteTo(c->name);
4071         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4072         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4073
4074         // i token must go to ALL servers!!!
4075         char buffer[MAXBUF];
4076         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
4077         for (int j = 0; j < 255; j++)
4078         {
4079                 if (servers[j] != NULL)
4080                 {
4081                         if (strcmp(servers[j]->name,ServerName))
4082                         {
4083                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4084                                 log(DEBUG,"Sent i token");
4085                         }
4086                 }
4087         }
4088 }
4089
4090 void handle_topic(char **parameters, int pcnt, userrec *user)
4091 {
4092         chanrec* Ptr;
4093
4094         if (pcnt == 1)
4095         {
4096                 if (strlen(parameters[0]) <= CHANMAX)
4097                 {
4098                         Ptr = FindChan(parameters[0]);
4099                         if (Ptr)
4100                         {
4101                                 if (Ptr->topicset)
4102                                 {
4103                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4104                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4105                                 }
4106                                 else
4107                                 {
4108                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4109                                 }
4110                         }
4111                         else
4112                         {
4113                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4114                         }
4115                 }
4116                 return;
4117         }
4118         else if (pcnt>1)
4119         {
4120                 if (strlen(parameters[0]) <= CHANMAX)
4121                 {
4122                         Ptr = FindChan(parameters[0]);
4123                         if (Ptr)
4124                         {
4125                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4126                                 {
4127                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4128                                         return;
4129                                 }
4130
4131                                 char topic[MAXBUF];
4132                                 strncpy(topic,parameters[1],MAXBUF);
4133                                 if (strlen(topic)>MAXTOPIC)
4134                                 {
4135                                         topic[MAXTOPIC-1] = '\0';
4136                                 }
4137
4138                                 strcpy(Ptr->topic,topic);
4139                                 strcpy(Ptr->setby,user->nick);
4140                                 Ptr->topicset = time(NULL);
4141                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4142
4143                                 // t token must go to ALL servers!!!
4144                                 char buffer[MAXBUF];
4145                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
4146                                 for (int j = 0; j < 255; j++)
4147                                 {
4148                                         if (servers[j] != NULL)
4149                                         {
4150                                                 if (strcmp(servers[j]->name,ServerName))
4151                                                 {
4152                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4153                                                         log(DEBUG,"Sent t token");
4154                                                 }
4155                                         }
4156                                 }
4157                         }
4158                         else
4159                         {
4160                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4161                         }
4162                 }
4163         }
4164 }
4165
4166 /* sends out an error notice to all connected clients (not to be used
4167  * lightly!) */
4168
4169 void send_error(char *s)
4170 {
4171         log(DEBUG,"send_error: %s",s);
4172         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4173         {
4174                 if (isnick(i->second->nick))
4175                 {
4176                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4177                 }
4178                 else
4179                 {
4180                         // fix - unregistered connections receive ERROR, not NOTICE
4181                         Write(i->second->fd,"ERROR :%s",s);
4182                 }
4183         }
4184 }
4185
4186 void Error(int status)
4187 {
4188         signal (SIGALRM, SIG_IGN);
4189         signal (SIGPIPE, SIG_IGN);
4190         signal (SIGTERM, SIG_IGN);
4191         signal (SIGABRT, SIG_IGN);
4192         signal (SIGSEGV, SIG_IGN);
4193         signal (SIGURG, SIG_IGN);
4194         signal (SIGKILL, SIG_IGN);
4195         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4196         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4197         exit(status);
4198 }
4199
4200
4201 int main (int argc, char *argv[])
4202 {
4203         Start();
4204         log(DEBUG,"*** InspIRCd starting up!");
4205         if (!FileExists(CONFIG_FILE))
4206         {
4207                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4208                 log(DEBUG,"main: no config");
4209                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4210                 Exit(ERROR);
4211         }
4212         if (argc > 1) {
4213                 if (!strcmp(argv[1],"-nofork")) {
4214                         nofork = true;
4215                 }
4216         }
4217         if (InspIRCd() == ERROR)
4218         {
4219                 log(DEBUG,"main: daemon function bailed");
4220                 printf("ERROR: could not initialise. Shutting down.\n");
4221                 Exit(ERROR);
4222         }
4223         Exit(TRUE);
4224         return 0;
4225 }
4226
4227 template<typename T> inline string ConvToStr(const T &in)
4228 {
4229         stringstream tmp;
4230         if (!(tmp << in)) return string();
4231         return tmp.str();
4232 }
4233
4234 /* re-allocates a nick in the user_hash after they change nicknames,
4235  * returns a pointer to the new user as it may have moved */
4236
4237 userrec* ReHashNick(char* Old, char* New)
4238 {
4239         user_hash::iterator newnick;
4240         user_hash::iterator oldnick = clientlist.find(Old);
4241
4242         log(DEBUG,"ReHashNick: %s %s",Old,New);
4243
4244         if (!strcasecmp(Old,New))
4245         {
4246                 log(DEBUG,"old nick is new nick, skipping");
4247                 return oldnick->second;
4248         }
4249
4250         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4251
4252         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4253
4254         clientlist[New] = new userrec();
4255         clientlist[New] = oldnick->second;
4256         /*delete oldnick->second; */
4257         clientlist.erase(oldnick);
4258
4259         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4260
4261         return clientlist[New];
4262 }
4263
4264 /* adds or updates an entry in the whowas list */
4265 void AddWhoWas(userrec* u)
4266 {
4267         user_hash::iterator iter = whowas.find(u->nick);
4268         userrec *a = new userrec();
4269         strcpy(a->nick,u->nick);
4270         strcpy(a->ident,u->ident);
4271         strcpy(a->dhost,u->dhost);
4272         strcpy(a->host,u->host);
4273         strcpy(a->fullname,u->fullname);
4274         strcpy(a->server,u->server);
4275         a->signon = u->signon;
4276
4277         /* MAX_WHOWAS:   max number of /WHOWAS items
4278          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4279          *               can be replaced by a newer one
4280          */
4281
4282         if (iter == whowas.end())
4283         {
4284                 if (whowas.size() == WHOWAS_MAX)
4285                 {
4286                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4287                         {
4288                                 // 3600 seconds in an hour ;)
4289                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4290                                 {
4291                                         delete i->second;
4292                                         i->second = a;
4293                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4294                                         return;
4295                                 }
4296                         }
4297                 }
4298                 else
4299                 {
4300                         log(DEBUG,"added fresh WHOWAS entry");
4301                         whowas[a->nick] = a;
4302                 }
4303         }
4304         else
4305         {
4306                 log(DEBUG,"updated WHOWAS entry");
4307                 delete iter->second;
4308                 iter->second = a;
4309         }
4310 }
4311
4312
4313 /* add a client connection to the sockets list */
4314 void AddClient(int socket, char* host, int port, bool iscached)
4315 {
4316         int i;
4317         int blocking = 1;
4318         char resolved[MAXBUF];
4319         string tempnick;
4320         char tn2[MAXBUF];
4321         user_hash::iterator iter;
4322
4323         tempnick = ConvToStr(socket) + "-unknown";
4324         sprintf(tn2,"%d-unknown",socket);
4325
4326         iter = clientlist.find(tempnick);
4327
4328         if (iter != clientlist.end()) return;
4329
4330         /*
4331          * It is OK to access the value here this way since we know
4332          * it exists, we just created it above.
4333          *
4334          * At NO other time should you access a value in a map or a
4335          * hash_map this way.
4336          */
4337         clientlist[tempnick] = new userrec();
4338
4339         NonBlocking(socket);
4340         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4341
4342         clientlist[tempnick]->fd = socket;
4343         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4344         strncpy(clientlist[tempnick]->host, host,160);
4345         strncpy(clientlist[tempnick]->dhost, host,160);
4346         strncpy(clientlist[tempnick]->server, ServerName,256);
4347         strncpy(clientlist[tempnick]->ident, "unknown",9);
4348         clientlist[tempnick]->registered = 0;
4349         clientlist[tempnick]->signon = time(NULL);
4350         clientlist[tempnick]->nping = time(NULL)+240;
4351         clientlist[tempnick]->lastping = 1;
4352         clientlist[tempnick]->port = port;
4353
4354         if (iscached)
4355         {
4356                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4357         }
4358         else
4359         {
4360                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4361         }
4362
4363         // set the registration timeout for this user
4364         unsigned long class_regtimeout = 90;
4365         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4366         {
4367                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4368                 {
4369                         class_regtimeout = (unsigned long)i->registration_timeout;
4370                         break;
4371                 }
4372         }
4373
4374         int class_flood = 0;
4375         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4376         {
4377                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4378                 {
4379                         class_flood = i->flood;
4380                         break;
4381                 }
4382         }
4383
4384         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4385         clientlist[tempnick]->flood = class_flood;
4386
4387         for (int i = 0; i < MAXCHANS; i++)
4388         {
4389                 clientlist[tempnick]->chans[i].channel = NULL;
4390                 clientlist[tempnick]->chans[i].uc_modes = 0;
4391         }
4392
4393         if (clientlist.size() == MAXCLIENTS)
4394                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4395 }
4396
4397 void handle_names(char **parameters, int pcnt, userrec *user)
4398 {
4399         chanrec* c;
4400
4401         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4402                 return;
4403         c = FindChan(parameters[0]);
4404         if (c)
4405         {
4406                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4407                 userlist(user,c);
4408                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4409         }
4410         else
4411         {
4412                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4413         }
4414 }
4415
4416 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4417 {
4418         userrec *dest;
4419         chanrec *chan;
4420
4421         user->idle_lastmsg = time(NULL);
4422
4423         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4424                 return;
4425         if (parameters[0][0] == '#')
4426         {
4427                 chan = FindChan(parameters[0]);
4428                 if (chan)
4429                 {
4430                         if ((chan->noexternal) && (!has_channel(user,chan)))
4431                         {
4432                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4433                                 return;
4434                         }
4435                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4436                         {
4437                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4438                                 return;
4439                         }
4440
4441                         int MOD_RESULT = 0;
4442
4443                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4444                         if (MOD_RESULT) {
4445                                 return;
4446                         }
4447
4448                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4449
4450                         // if any users of this channel are on remote servers, broadcast the packet
4451                         char buffer[MAXBUF];
4452                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4453                         for (int j = 0; j < 255; j++)
4454                         {
4455                                 if (servers[j] != NULL)
4456                                 {
4457                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4458                                         {
4459                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4460                                         }
4461                                 }
4462                         }
4463                 }
4464                 else
4465                 {
4466                         /* no such nick/channel */
4467                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4468                 }
4469                 return;
4470         }
4471
4472         dest = Find(parameters[0]);
4473         if (dest)
4474         {
4475                 if (strcmp(dest->awaymsg,""))
4476                 {
4477                         /* auto respond with aweh msg */
4478                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4479                 }
4480
4481                 int MOD_RESULT = 0;
4482
4483                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4484                 if (MOD_RESULT) {
4485                         return;
4486                 }
4487
4488
4489
4490                 if (!strcmp(dest->server,user->server))
4491                 {
4492                         // direct write, same server
4493                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4494                 }
4495                 else
4496                 {
4497                         for (int j = 0; j < 255; j++)
4498                         {
4499                                 if (servers[j] != NULL)
4500                                 {
4501                                         if (!strcasecmp(servers[j]->name,dest->server))
4502                                         {
4503                                                 // direct write, same server
4504                                                 char buffer[MAXBUF];
4505                                                 snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4506                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4507                                         }
4508                                 }
4509                         }
4510                 }
4511         }
4512         else
4513         {
4514                 /* no such nick/channel */
4515                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4516         }
4517 }
4518
4519 void handle_notice(char **parameters, int pcnt, userrec *user)
4520 {
4521         userrec *dest;
4522         chanrec *chan;
4523
4524         user->idle_lastmsg = time(NULL);
4525
4526         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4527                 return;
4528         if (parameters[0][0] == '#')
4529         {
4530                 chan = FindChan(parameters[0]);
4531                 if (chan)
4532                 {
4533                         if ((chan->noexternal) && (!has_channel(user,chan)))
4534                         {
4535                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4536                                 return;
4537                         }
4538                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4539                         {
4540                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4541                                 return;
4542                         }
4543
4544                         int MOD_RESULT = 0;
4545
4546                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4547                         if (MOD_RESULT) {
4548                                 return;
4549                         }
4550
4551                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4552
4553                         // if any users of this channel are on remote servers, broadcast the packet
4554                         char buffer[MAXBUF];
4555                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4556                         for (int j = 0; j < 255; j++)
4557                         {
4558                                 if (servers[j] != NULL)
4559                                 {
4560                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4561                                         {
4562                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4563                                         }
4564                                 }
4565                         }
4566                 }
4567                 else
4568                 {
4569                         /* no such nick/channel */
4570                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4571                 }
4572                 return;
4573         }
4574
4575         dest = Find(parameters[0]);
4576         if (dest)
4577         {
4578                 int MOD_RESULT = 0;
4579
4580                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4581                 if (MOD_RESULT) {
4582                         return;
4583                 }
4584
4585                 if (!strcmp(dest->server,user->server))
4586                 {
4587                         // direct write, same server
4588                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4589                 }
4590                 else
4591                 {
4592                         for (int j = 0; j < 255; j++)
4593                         {
4594                                 if (servers[j] != NULL)
4595                                 {
4596                                         if (!strcasecmp(servers[j]->name,dest->server))
4597                                         {
4598                                                 // direct write, same server
4599                                                 char buffer[MAXBUF];
4600                                                 snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4601                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4602                                         }
4603                                 }
4604                         }
4605                 }
4606         }
4607         else
4608         {
4609                 /* no such nick/channel */
4610                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4611         }
4612 }
4613
4614 char lst[MAXBUF];
4615
4616 char* chlist(userrec *user)
4617 {
4618         int i = 0;
4619         char cmp[MAXBUF];
4620
4621         log(DEBUG,"chlist: %s",user->nick);
4622         strcpy(lst,"");
4623         if (!user)
4624         {
4625                 return lst;
4626         }
4627         for (int i = 0; i != MAXCHANS; i++)
4628         {
4629                 if (user->chans[i].channel != NULL)
4630                 {
4631                         if (user->chans[i].channel->name)
4632                         {
4633                                 strcpy(cmp,user->chans[i].channel->name);
4634                                 strcat(cmp," ");
4635                                 if (!strstr(lst,cmp))
4636                                 {
4637                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4638                                         {
4639                                                 strcat(lst,cmode(user,user->chans[i].channel));
4640                                                 strcat(lst,user->chans[i].channel->name);
4641                                                 strcat(lst," ");
4642                                         }
4643                                 }
4644                         }
4645                 }
4646         }
4647         if (strlen(lst))
4648         {
4649                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4650         }
4651         return lst;
4652 }
4653
4654 void handle_info(char **parameters, int pcnt, userrec *user)
4655 {
4656         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4657         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4658         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4659         FOREACH_MOD OnInfo(user);
4660         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4661 }
4662
4663 void handle_time(char **parameters, int pcnt, userrec *user)
4664 {
4665         time_t rawtime;
4666         struct tm * timeinfo;
4667
4668         time ( &rawtime );
4669         timeinfo = localtime ( &rawtime );
4670         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4671
4672 }
4673
4674 void handle_whois(char **parameters, int pcnt, userrec *user)
4675 {
4676         userrec *dest;
4677         char *t;
4678
4679         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4680                 return;
4681         dest = Find(parameters[0]);
4682         if (dest)
4683         {
4684                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4685                 if (dest->registered == 7)
4686                 {
4687                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4688                         if ((user == dest) || (strchr(user->modes,'o')))
4689                         {
4690                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4691                         }
4692                         if (strcmp(chlist(dest),""))
4693                         {
4694                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4695                         }
4696                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4697                         if (strcmp(dest->awaymsg,""))
4698                         {
4699                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4700                         }
4701                         if (strchr(dest->modes,'o'))
4702                         {
4703                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4704                         }
4705                         FOREACH_MOD OnWhois(user,dest);
4706                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4707                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4708
4709                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4710                 }
4711                 else
4712                 {
4713                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4714                 }
4715         }
4716         else
4717         {
4718                 /* no such nick/channel */
4719                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4720         }
4721 }
4722
4723 void send_network_quit(const char* nick, const char* reason)
4724 {
4725                 char buffer[MAXBUF];
4726                 snprintf(buffer,MAXBUF,"Q %s :%s",nick,reason);
4727                 for (int j = 0; j < 255; j++)
4728                 {
4729                         if (servers[j] != NULL)
4730                         {
4731                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4732                                 log(DEBUG,"Sent Q token");
4733                         }
4734                 }
4735 }
4736
4737 void handle_quit(char **parameters, int pcnt, userrec *user)
4738 {
4739         user_hash::iterator iter = clientlist.find(user->nick);
4740         char* reason;
4741
4742         if (user->registered == 7)
4743         {
4744                 /* theres more to do here, but for now just close the socket */
4745                 if (pcnt == 1)
4746                 {
4747                         if (parameters[0][0] == ':')
4748                         {
4749                                 *parameters[0]++;
4750                         }
4751                         reason = parameters[0];
4752
4753                         if (strlen(reason)>MAXQUIT)
4754                         {
4755                                 reason[MAXQUIT-1] = '\0';
4756                         }
4757
4758                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4759                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4760                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4761
4762                         char buffer[MAXBUF];
4763                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4764                         for (int j = 0; j < 255; j++)
4765                         {
4766                                 if (servers[j] != NULL)
4767                                 {
4768                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4769                                         log(DEBUG,"Sent Q token");
4770                                 }
4771                         }
4772                 }
4773                 else
4774                 {
4775                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4776                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4777                         WriteCommonExcept(user,"QUIT :Client exited");
4778
4779                         char buffer[MAXBUF];
4780                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4781                         for (int j = 0; j < 255; j++)
4782                         {
4783                                 if (servers[j] != NULL)
4784                                 {
4785                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4786                                         log(DEBUG,"Sent Q token");
4787                                 }
4788                         }
4789                 }
4790                 FOREACH_MOD OnUserQuit(user);
4791                 AddWhoWas(user);
4792         }
4793
4794         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4795         fd_reap.push_back(user->fd);
4796
4797         if (iter != clientlist.end())
4798         {
4799                 clientlist.erase(iter);
4800                 log(DEBUG,"deleting user hash value %d",iter->second);
4801                 //if ((user) && (user->registered == 7)) {
4802                         //delete user;
4803                 //}
4804         }
4805
4806         if (user->registered == 7) {
4807                 purge_empty_chans();
4808         }
4809 }
4810
4811 void handle_who(char **parameters, int pcnt, userrec *user)
4812 {
4813         chanrec* Ptr = NULL;
4814
4815         /* theres more to do here, but for now just close the socket */
4816         if (pcnt == 1)
4817         {
4818                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4819                 {
4820                         if (user->chans[0].channel)
4821                         {
4822                                 Ptr = user->chans[0].channel;
4823                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4824                                 {
4825                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4826                                         {
4827                                                 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);
4828                                         }
4829                                 }
4830                         }
4831                         if (Ptr)
4832                         {
4833                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4834                         }
4835                         else
4836                         {
4837                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4838                         }
4839                         return;
4840                 }
4841                 if (parameters[0][0] == '#')
4842                 {
4843                         Ptr = FindChan(parameters[0]);
4844                         if (Ptr)
4845                         {
4846                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4847                                 {
4848                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4849                                         {
4850                                                 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);
4851                                         }
4852                                 }
4853                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4854                         }
4855                         else
4856                         {
4857                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4858                         }
4859                 }
4860                 else
4861                 {
4862                         userrec* u = Find(parameters[0]);
4863                         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);
4864                 }
4865         }
4866         if (pcnt == 2)
4867         {
4868                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4869                 {
4870                         Ptr = user->chans[0].channel;
4871                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4872                         {
4873                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4874                                 {
4875                                         if (strchr(i->second->modes,'o'))
4876                                         {
4877                                                 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);
4878                                         }
4879                                 }
4880                         }
4881                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4882                         return;
4883                 }
4884         }
4885 }
4886
4887 void handle_wallops(char **parameters, int pcnt, userrec *user)
4888 {
4889         WriteWallOps(user,false,"%s",parameters[0]);
4890 }
4891
4892 void handle_list(char **parameters, int pcnt, userrec *user)
4893 {
4894         chanrec* Ptr;
4895
4896         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4897         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4898         {
4899                 if ((!i->second->c_private) && (!i->second->secret))
4900                 {
4901                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4902                 }
4903         }
4904         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4905 }
4906
4907
4908 void handle_rehash(char **parameters, int pcnt, userrec *user)
4909 {
4910         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4911         ReadConfig();
4912         FOREACH_MOD OnRehash();
4913         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4914 }
4915
4916
4917 int usercnt(void)
4918 {
4919         return clientlist.size();
4920 }
4921
4922
4923 int usercount_invisible(void)
4924 {
4925         int c = 0;
4926
4927         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4928         {
4929                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4930         }
4931         return c;
4932 }
4933
4934 int usercount_opers(void)
4935 {
4936         int c = 0;
4937
4938         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4939         {
4940                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4941         }
4942         return c;
4943 }
4944
4945 int usercount_unknown(void)
4946 {
4947         int c = 0;
4948
4949         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4950         {
4951                 if ((i->second->fd) && (i->second->registered != 7))
4952                         c++;
4953         }
4954         return c;
4955 }
4956
4957 long chancount(void)
4958 {
4959         return chanlist.size();
4960 }
4961
4962 long count_servs(void)
4963 {
4964         int c = 0;
4965         for (int j = 0; j < 255; j++)
4966         {
4967                 if (servers[j] != NULL)
4968                         c++;
4969         }
4970         return c;
4971 }
4972
4973 long servercount(void)
4974 {
4975         return count_servs()+1;
4976 }
4977
4978 long local_count()
4979 {
4980         int c = 0;
4981         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4982         {
4983                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
4984         }
4985         return c;
4986 }
4987
4988
4989 void handle_lusers(char **parameters, int pcnt, userrec *user)
4990 {
4991         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4992         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4993         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4994         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4995         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
4996 }
4997
4998 void handle_admin(char **parameters, int pcnt, userrec *user)
4999 {
5000         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
5001         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
5002         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
5003         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
5004 }
5005
5006 void ShowMOTD(userrec *user)
5007 {
5008         if (!MOTD.size())
5009         {
5010                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
5011                 return;
5012         }
5013         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
5014         for (int i = 0; i != MOTD.size(); i++)
5015         {
5016                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
5017         }
5018         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
5019 }
5020
5021 void ShowRULES(userrec *user)
5022 {
5023         if (!RULES.size())
5024         {
5025                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
5026                 return;
5027         }
5028         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
5029         for (int i = 0; i != RULES.size(); i++)
5030         {
5031                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
5032         }
5033         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
5034 }
5035
5036 /* shows the message of the day, and any other on-logon stuff */
5037 void ConnectUser(userrec *user)
5038 {
5039         user->registered = 7;
5040         user->idle_lastmsg = time(NULL);
5041         log(DEBUG,"ConnectUser: %s",user->nick);
5042
5043         if (strcmp(Passwd(user),"") && (!user->haspassed))
5044         {
5045                 kill_link(user,"Invalid password");
5046                 return;
5047         }
5048         if (IsDenied(user))
5049         {
5050                 kill_link(user,"Unauthorised connection");
5051                 return;
5052         }
5053
5054         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
5055         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
5056         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
5057         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
5058         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
5059         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);
5060         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);
5061         ShowMOTD(user);
5062         FOREACH_MOD OnUserConnect(user);
5063         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
5064
5065         char buffer[MAXBUF];
5066         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);
5067         for (int j = 0; j < 255; j++)
5068         {
5069                 if (servers[j] != NULL)
5070                 {
5071                         if (strcmp(servers[j]->name,ServerName))
5072                         {
5073                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5074                                 log(DEBUG,"Sent N token");
5075                         }
5076                 }
5077         }
5078
5079 }
5080
5081 void handle_version(char **parameters, int pcnt, userrec *user)
5082 {
5083         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
5084 }
5085
5086 void handle_ping(char **parameters, int pcnt, userrec *user)
5087 {
5088         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
5089 }
5090
5091 void handle_pong(char **parameters, int pcnt, userrec *user)
5092 {
5093         // set the user as alive so they survive to next ping
5094         user->lastping = 1;
5095 }
5096
5097 void handle_motd(char **parameters, int pcnt, userrec *user)
5098 {
5099         ShowMOTD(user);
5100 }
5101
5102 void handle_rules(char **parameters, int pcnt, userrec *user)
5103 {
5104         ShowRULES(user);
5105 }
5106
5107 void handle_user(char **parameters, int pcnt, userrec *user)
5108 {
5109         if (user->registered < 3)
5110         {
5111                 if (isident(parameters[0]) == 0) {
5112                         // This kinda Sucks, According to the RFC thou, its either this,
5113                         // or "You have already registered" :p -- Craig
5114                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
5115                 }
5116                 else {
5117                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
5118                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
5119                         strncat(user->ident,parameters[0],IDENTMAX);
5120                         strncpy(user->fullname,parameters[3],128);
5121                         user->registered = (user->registered | 1);
5122                 }
5123         }
5124         else
5125         {
5126                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5127                 return;
5128         }
5129         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5130         if (user->registered == 3)
5131         {
5132                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5133                 ConnectUser(user);
5134         }
5135 }
5136
5137 void handle_userhost(char **parameters, int pcnt, userrec *user)
5138 {
5139         char Return[MAXBUF],junk[MAXBUF];
5140         sprintf(Return,"302 %s :",user->nick);
5141         for (int i = 0; i < pcnt; i++)
5142         {
5143                 userrec *u = Find(parameters[i]);
5144                 if (u)
5145                 {
5146                         if (strchr(u->modes,'o'))
5147                         {
5148                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5149                                 strcat(Return,junk);
5150                         }
5151                         else
5152                         {
5153                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5154                                 strcat(Return,junk);
5155                         }
5156                 }
5157         }
5158         WriteServ(user->fd,Return);
5159 }
5160
5161
5162 void handle_ison(char **parameters, int pcnt, userrec *user)
5163 {
5164         char Return[MAXBUF];
5165         sprintf(Return,"303 %s :",user->nick);
5166         for (int i = 0; i < pcnt; i++)
5167         {
5168                 userrec *u = Find(parameters[i]);
5169                 if (u)
5170                 {
5171                         strcat(Return,u->nick);
5172                         strcat(Return," ");
5173                 }
5174         }
5175         WriteServ(user->fd,Return);
5176 }
5177
5178
5179 void handle_away(char **parameters, int pcnt, userrec *user)
5180 {
5181         if (pcnt)
5182         {
5183                 strcpy(user->awaymsg,parameters[0]);
5184                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5185         }
5186         else
5187         {
5188                 strcpy(user->awaymsg,"");
5189                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5190         }
5191 }
5192
5193 void handle_whowas(char **parameters, int pcnt, userrec* user)
5194 {
5195         user_hash::iterator i = whowas.find(parameters[0]);
5196
5197         if (i == whowas.end())
5198         {
5199                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5200                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5201         }
5202         else
5203         {
5204                 time_t rawtime = i->second->signon;
5205                 tm *timeinfo;
5206                 char b[MAXBUF];
5207
5208                 timeinfo = localtime(&rawtime);
5209                 strcpy(b,asctime(timeinfo));
5210                 b[strlen(b)-1] = '\0';
5211
5212                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5213                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5214                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5215         }
5216
5217 }
5218
5219 void handle_trace(char **parameters, int pcnt, userrec *user)
5220 {
5221         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5222         {
5223                 if (i->second)
5224                 {
5225                         if (isnick(i->second->nick))
5226                         {
5227                                 if (strchr(i->second->modes,'o'))
5228                                 {
5229                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5230                                 }
5231                                 else
5232                                 {
5233                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5234                                 }
5235                         }
5236                         else
5237                         {
5238                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5239                         }
5240                 }
5241         }
5242 }
5243
5244 void handle_modules(char **parameters, int pcnt, userrec *user)
5245 {
5246         for (int i = 0; i < module_names.size(); i++)
5247         {
5248                         Version V = modules[i]->GetVersion();
5249                         char modulename[MAXBUF];
5250                         strncpy(modulename,module_names[i].c_str(),256);
5251                         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));
5252         }
5253 }
5254
5255 // calls a handler function for a command
5256
5257 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
5258 {
5259                 for (int i = 0; i < cmdlist.size(); i++)
5260                 {
5261                         if (!strcasecmp(cmdlist[i].command,commandname))
5262                         {
5263                                 if (cmdlist[i].handler_function)
5264                                 {
5265                                         if (pcnt>=cmdlist[i].min_params)
5266                                         {
5267                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
5268                                                 {
5269                                                         cmdlist[i].handler_function(parameters,pcnt,user);
5270                                                 }
5271                                         }
5272                                 }
5273                         }
5274                 }
5275 }
5276
5277 void handle_stats(char **parameters, int pcnt, userrec *user)
5278 {
5279         if (pcnt != 1)
5280         {
5281                 return;
5282         }
5283         if (strlen(parameters[0])>1)
5284         {
5285                 /* make the stats query 1 character long */
5286                 parameters[0][1] = '\0';
5287         }
5288
5289         /* stats m (list number of times each command has been used, plus bytecount) */
5290         if (!strcasecmp(parameters[0],"m"))
5291         {
5292                 for (int i = 0; i < cmdlist.size(); i++)
5293                 {
5294                         if (cmdlist[i].handler_function)
5295                         {
5296                                 if (cmdlist[i].use_count)
5297                                 {
5298                                         /* RPL_STATSCOMMANDS */
5299                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5300                                 }
5301                         }
5302                 }
5303
5304         }
5305
5306         /* stats z (debug and memory info) */
5307         if (!strcasecmp(parameters[0],"z"))
5308         {
5309                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5310                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5311                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5312                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5313                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5314                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5315                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5316                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5317         }
5318
5319         /* stats o */
5320         if (!strcasecmp(parameters[0],"o"))
5321         {
5322                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5323                 {
5324                         char LoginName[MAXBUF];
5325                         char HostName[MAXBUF];
5326                         char OperType[MAXBUF];
5327                         ConfValue("oper","name",i,LoginName,&config_f);
5328                         ConfValue("oper","host",i,HostName,&config_f);
5329                         ConfValue("oper","type",i,OperType,&config_f);
5330                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5331                 }
5332         }
5333
5334         /* stats l (show user I/O stats) */
5335         if (!strcasecmp(parameters[0],"l"))
5336         {
5337                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5338                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5339                 {
5340                         if (isnick(i->second->nick))
5341                         {
5342                                 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);
5343                         }
5344                         else
5345                         {
5346                                 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);
5347                         }
5348
5349                 }
5350         }
5351
5352         /* stats u (show server uptime) */
5353         if (!strcasecmp(parameters[0],"u"))
5354         {
5355                 time_t current_time = 0;
5356                 current_time = time(NULL);
5357                 time_t server_uptime = current_time - startup_time;
5358                 struct tm* stime;
5359                 stime = gmtime(&server_uptime);
5360                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5361                  * Craig suggested this, and it seemed a good idea so in it went */
5362                 if (stime->tm_year > 70)
5363                 {
5364                         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);
5365                 }
5366                 else
5367                 {
5368                         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);
5369                 }
5370         }
5371
5372         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5373         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5374
5375 }
5376
5377 void handle_connect(char **parameters, int pcnt, userrec *user)
5378 {
5379         char Link_ServerName[1024];
5380         char Link_IPAddr[1024];
5381         char Link_Port[1024];
5382         char Link_Pass[1024];
5383         int LinkPort;
5384         bool found = false;
5385
5386         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5387         {
5388                 if (!found)
5389                 {
5390                         ConfValue("link","name",i,Link_ServerName,&config_f);
5391                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5392                         ConfValue("link","port",i,Link_Port,&config_f);
5393                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
5394                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5395                         LinkPort = atoi(Link_Port);
5396                         if (match(Link_ServerName,parameters[0])) {
5397                                 found = true;
5398                                 break;
5399                         }
5400                 }
5401         }
5402
5403         if (!found) {
5404                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5405                 return;
5406         }
5407
5408         // TODO: Perform a check here to stop a server being linked twice!
5409
5410         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5411
5412         if (me[defaultRoute])
5413         {
5414
5415                 // at this point parameters[0] is an ip in a string.
5416                 // TODO: Look this up from the <link> blocks instead!
5417                 for (int j = 0; j < 255; j++) {
5418                         if (servers[j] == NULL) {
5419                                 servers[j] = new serverrec;
5420                                 //servers[j]->initiator = true;
5421                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
5422                                 servers[j]->internal_port = LinkPort;
5423                                 strcpy(servers[j]->name,Link_ServerName);
5424                                 log(DEBUG,"Allocated new serverrec");
5425                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
5426                                 {
5427                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
5428                                 }
5429                                 return;
5430                         }
5431                 }
5432                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
5433         }
5434         else
5435         {
5436                 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);
5437         }
5438 }
5439
5440 void handle_squit(char **parameters, int pcnt, userrec *user)
5441 {
5442         // send out an squit across the mesh and then clear the server list (for local squit)
5443 }
5444
5445 char islast(serverrec* s)
5446 {
5447         char c = '`';
5448         for (int j = 0; j < 255; j++)
5449         {
5450                 if (servers[j] != NULL)
5451                 {
5452                         c = '|';
5453                 }
5454                 if (servers[j] == s)
5455                 {
5456                         c = '`';
5457                 }
5458         }
5459         return c;
5460 }
5461
5462 long map_count(serverrec* s)
5463 {
5464         int c = 0;
5465         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
5466         {
5467                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s->name))) c++;
5468         }
5469         return c;
5470 }
5471
5472 void handle_links(char **parameters, int pcnt, userrec *user)
5473 {
5474         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5475         for (int j = 0; j < 255; j++)
5476         {
5477                 if (servers[j] != NULL)
5478                 {
5479                         WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,servers[j]->name,ServerName,servers[j]->description);
5480                 }
5481         }
5482         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5483 }
5484
5485 void handle_map(char **parameters, int pcnt, userrec *user)
5486 {
5487         char line[MAXBUF];
5488         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
5489         while (strlen(line) < 50)
5490                 strcat(line," ");
5491         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
5492         for (int j = 0; j < 255; j++)
5493         {
5494                 if (servers[j] != NULL)
5495                 {
5496                         snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(servers[j]),servers[j]->name);
5497                         while (strlen(line) < 50)
5498                                 strcat(line," ");
5499                         WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(servers[j]),(float)(((float)map_count(servers[j])/(float)usercnt())*100));
5500                 }
5501         }
5502         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5503 }
5504
5505
5506 void handle_oper(char **parameters, int pcnt, userrec *user)
5507 {
5508         char LoginName[MAXBUF];
5509         char Password[MAXBUF];
5510         char OperType[MAXBUF];
5511         char TypeName[MAXBUF];
5512         char Hostname[MAXBUF];
5513         int i,j;
5514
5515         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5516         {
5517                 ConfValue("oper","name",i,LoginName,&config_f);
5518                 ConfValue("oper","password",i,Password,&config_f);
5519                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5520                 {
5521                         /* correct oper credentials */
5522                         ConfValue("oper","type",i,OperType,&config_f);
5523                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5524                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5525                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5526                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5527                         {
5528                                 ConfValue("type","name",j,TypeName,&config_f);
5529                                 if (!strcmp(TypeName,OperType))
5530                                 {
5531                                         /* found this oper's opertype */
5532                                         ConfValue("type","host",j,Hostname,&config_f);
5533                                         strncpy(user->dhost,Hostname,256);
5534                                 }
5535                         }
5536                         if (!strchr(user->modes,'o'))
5537                         {
5538                                 strcat(user->modes,"o");
5539                         }
5540                         FOREACH_MOD OnOper(user);
5541                         return;
5542                 }
5543         }
5544         /* no such oper */
5545         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5546         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5547 }
5548
5549 void handle_nick(char **parameters, int pcnt, userrec *user)
5550 {
5551         if (pcnt < 1)
5552         {
5553                 log(DEBUG,"not enough params for handle_nick");
5554                 return;
5555         }
5556         if (!parameters[0])
5557         {
5558                 log(DEBUG,"invalid parameter passed to handle_nick");
5559                 return;
5560         }
5561         if (!strlen(parameters[0]))
5562         {
5563                 log(DEBUG,"zero length new nick passed to handle_nick");
5564                 return;
5565         }
5566         if (!user)
5567         {
5568                 log(DEBUG,"invalid user passed to handle_nick");
5569                 return;
5570         }
5571         if (!user->nick)
5572         {
5573                 log(DEBUG,"invalid old nick passed to handle_nick");
5574                 return;
5575         }
5576         if (!strcasecmp(user->nick,parameters[0]))
5577         {
5578                 log(DEBUG,"old nick is new nick, skipping");
5579                 return;
5580         }
5581         else
5582         {
5583                 if (strlen(parameters[0]) > 1)
5584                 {
5585                         if (parameters[0][0] == ':')
5586                         {
5587                                 *parameters[0]++;
5588                         }
5589                 }
5590                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5591                 {
5592                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5593                         return;
5594                 }
5595         }
5596         if (isnick(parameters[0]) == 0)
5597         {
5598                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5599                 return;
5600         }
5601
5602         if (user->registered == 7)
5603         {
5604                 WriteCommon(user,"NICK %s",parameters[0]);
5605
5606                 // Q token must go to ALL servers!!!
5607                 char buffer[MAXBUF];
5608                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5609                 for (int j = 0; j < 255; j++)
5610                 {
5611                         if (servers[j] != NULL)
5612                         {
5613                                 if (strcmp(servers[j]->name,ServerName))
5614                                 {
5615                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5616                                         log(DEBUG,"Sent n token");
5617                                 }
5618                         }
5619                 }
5620
5621         }
5622
5623         /* change the nick of the user in the users_hash */
5624         user = ReHashNick(user->nick, parameters[0]);
5625         /* actually change the nick within the record */
5626         if (!user) return;
5627         if (!user->nick) return;
5628
5629         strncpy(user->nick, parameters[0],NICKMAX);
5630
5631         log(DEBUG,"new nick set: %s",user->nick);
5632
5633         if (user->registered < 3)
5634                 user->registered = (user->registered | 2);
5635         if (user->registered == 3)
5636         {
5637                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5638                 ConnectUser(user);
5639         }
5640         log(DEBUG,"exit nickchange: %s",user->nick);
5641 }
5642
5643 void force_nickchange(userrec* user,const char* newnick)
5644 {
5645         char nick[MAXBUF];
5646         strcpy(nick,"");
5647
5648         if (user)
5649         {
5650                 if (newnick)
5651                 {
5652                         strncpy(nick,newnick,MAXBUF);
5653                 }
5654                 if (user->registered == 7)
5655                 {
5656                         char* pars[1];
5657                         pars[0] = nick;
5658                         handle_nick(pars,1,user);
5659                 }
5660         }
5661 }
5662
5663
5664 int process_parameters(char **command_p,char *parameters)
5665 {
5666         int i = 0;
5667         int j = 0;
5668         int q = 0;
5669         q = strlen(parameters);
5670         if (!q)
5671         {
5672                 /* no parameters, command_p invalid! */
5673                 return 0;
5674         }
5675         if (parameters[0] == ':')
5676         {
5677                 command_p[0] = parameters+1;
5678                 return 1;
5679         }
5680         if (q)
5681         {
5682                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5683                 {
5684                         /* only one parameter */
5685                         command_p[0] = parameters;
5686                         if (parameters[0] == ':')
5687                         {
5688                                 if (strchr(parameters,' ') != NULL)
5689                                 {
5690                                         command_p[0]++;
5691                                 }
5692                         }
5693                         return 1;
5694                 }
5695         }
5696         command_p[j++] = parameters;
5697         for (int i = 0; i <= q; i++)
5698         {
5699                 if (parameters[i] == ' ')
5700                 {
5701                         command_p[j++] = parameters+i+1;
5702                         parameters[i] = '\0';
5703                         if (command_p[j-1][0] == ':')
5704                         {
5705                                 *command_p[j-1]++; /* remove dodgy ":" */
5706                                 break;
5707                                 /* parameter like this marks end of the sequence */
5708                         }
5709                 }
5710         }
5711         return j; /* returns total number of items in the list */
5712 }
5713
5714 void process_command(userrec *user, char* cmd)
5715 {
5716         char *parameters;
5717         char *command;
5718         char *command_p[127];
5719         char p[MAXBUF], temp[MAXBUF];
5720         int i, j, items, cmd_found;
5721
5722         for (int i = 0; i < 127; i++)
5723                 command_p[i] = NULL;
5724
5725         if (!user)
5726         {
5727                 return;
5728         }
5729         if (!cmd)
5730         {
5731                 return;
5732         }
5733         if (!strcmp(cmd,""))
5734         {
5735                 return;
5736         }
5737
5738         int total_params = 0;
5739         if (strlen(cmd)>2)
5740         {
5741                 for (int q = 0; q < strlen(cmd)-1; q++)
5742                 {
5743                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5744                         {
5745                                 total_params++;
5746                                 // found a 'trailing', we dont count them after this.
5747                                 break;
5748                         }
5749                         if (cmd[q] == ' ')
5750                                 total_params++;
5751                 }
5752         }
5753
5754         // another phidjit bug...
5755         if (total_params > 126)
5756         {
5757                 kill_link(user,"Protocol violation (1)");
5758                 return;
5759         }
5760
5761         strcpy(temp,cmd);
5762
5763         string tmp = cmd;
5764         FOREACH_MOD OnServerRaw(tmp,true);
5765         const char* cmd2 = tmp.c_str();
5766         snprintf(cmd,512,"%s",cmd2);
5767
5768         if (!strchr(cmd,' '))
5769         {
5770                 /* no parameters, lets skip the formalities and not chop up
5771                  * the string */
5772                 log(DEBUG,"About to preprocess command with no params");
5773                 items = 0;
5774                 command_p[0] = NULL;
5775                 parameters = NULL;
5776                 for (int i = 0; i <= strlen(cmd); i++)
5777                 {
5778                         cmd[i] = toupper(cmd[i]);
5779                 }
5780                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5781                 command = cmd;
5782         }
5783         else
5784         {
5785                 strcpy(cmd,"");
5786                 j = 0;
5787                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5788                 for (int i = 0; i < strlen(temp); i++)
5789                 {
5790                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5791                         {
5792                                 cmd[j++] = temp[i];
5793                                 cmd[j] = 0;
5794                         }
5795                 }
5796                 /* split the full string into a command plus parameters */
5797                 parameters = p;
5798                 strcpy(p," ");
5799                 command = cmd;
5800                 if (strchr(cmd,' '))
5801                 {
5802                         for (int i = 0; i <= strlen(cmd); i++)
5803                         {
5804                                 /* capitalise the command ONLY, leave params intact */
5805                                 cmd[i] = toupper(cmd[i]);
5806                                 /* are we nearly there yet?! :P */
5807                                 if (cmd[i] == ' ')
5808                                 {
5809                                         command = cmd;
5810                                         parameters = cmd+i+1;
5811                                         cmd[i] = '\0';
5812                                         break;
5813                                 }
5814                         }
5815                 }
5816                 else
5817                 {
5818                         for (int i = 0; i <= strlen(cmd); i++)
5819                         {
5820                                 cmd[i] = toupper(cmd[i]);
5821                         }
5822                 }
5823
5824         }
5825         cmd_found = 0;
5826
5827         if (strlen(command)>MAXCOMMAND)
5828         {
5829                 kill_link(user,"Protocol violation (2)");
5830                 return;
5831         }
5832
5833         for (int x = 0; x < strlen(command); x++)
5834         {
5835                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5836                 {
5837                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5838                         {
5839                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5840                                 {
5841                                         kill_link(user,"Protocol violation (3)");
5842                                         return;
5843                                 }
5844                         }
5845                 }
5846         }
5847
5848         for (int i = 0; i != cmdlist.size(); i++)
5849         {
5850                 if (strcmp(cmdlist[i].command,""))
5851                 {
5852                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5853                         {
5854                                 log(DEBUG,"Found matching command");
5855
5856                                 if (parameters)
5857                                 {
5858                                         if (strcmp(parameters,""))
5859                                         {
5860                                                 items = process_parameters(command_p,parameters);
5861                                         }
5862                                         else
5863                                         {
5864                                                 items = 0;
5865                                                 command_p[0] = NULL;
5866                                         }
5867                                 }
5868                                 else
5869                                 {
5870                                         items = 0;
5871                                         command_p[0] = NULL;
5872                                 }
5873
5874                                 if (user)
5875                                 {
5876                                         log(DEBUG,"Processing command");
5877
5878                                         /* activity resets the ping pending timer */
5879                                         user->nping = time(NULL) + 120;
5880                                         if ((items) < cmdlist[i].min_params)
5881                                         {
5882                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5883                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5884                                                 return;
5885                                         }
5886                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5887                                         {
5888                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5889                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5890                                                 cmd_found = 1;
5891                                                 return;
5892                                         }
5893                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5894                                          * deny command! */
5895                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5896                                         {
5897                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5898                                                 {
5899                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5900                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5901                                                         return;
5902                                                 }
5903                                         }
5904                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5905                                         {
5906                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5907                                                 if (cmdlist[i].handler_function)
5908                                                 {
5909                                                         /* ikky /stats counters */
5910                                                         if (temp)
5911                                                         {
5912                                                                 if (user)
5913                                                                 {
5914                                                                         user->bytes_in += strlen(temp);
5915                                                                         user->cmds_in++;
5916                                                                 }
5917                                                                 cmdlist[i].use_count++;
5918                                                                 cmdlist[i].total_bytes+=strlen(temp);
5919                                                         }
5920
5921                                                         /* WARNING: nothing may come after the
5922                                                          * command handler call, as the handler
5923                                                          * may free the user structure! */
5924
5925                                                         cmdlist[i].handler_function(command_p,items,user);
5926                                                 }
5927                                                 return;
5928                                         }
5929                                         else
5930                                         {
5931                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5932                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5933                                                 return;
5934                                         }
5935                                 }
5936                                 cmd_found = 1;
5937                         }
5938                 }
5939         }
5940         if ((!cmd_found) && (user))
5941         {
5942                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5943                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5944         }
5945 }
5946
5947
5948 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5949 {
5950         command_t comm;
5951         /* create the command and push it onto the table */
5952         strcpy(comm.command,cmd);
5953         comm.handler_function = f;
5954         comm.flags_needed = flags;
5955         comm.min_params = minparams;
5956         comm.use_count = 0;
5957         comm.total_bytes = 0;
5958         cmdlist.push_back(comm);
5959         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5960 }
5961
5962 void SetupCommandTable(void)
5963 {
5964         createcommand("USER",handle_user,0,4);
5965         createcommand("NICK",handle_nick,0,1);
5966         createcommand("QUIT",handle_quit,0,0);
5967         createcommand("VERSION",handle_version,0,0);
5968         createcommand("PING",handle_ping,0,1);
5969         createcommand("PONG",handle_pong,0,1);
5970         createcommand("ADMIN",handle_admin,0,0);
5971         createcommand("PRIVMSG",handle_privmsg,0,2);
5972         createcommand("INFO",handle_info,0,0);
5973         createcommand("TIME",handle_time,0,0);
5974         createcommand("WHOIS",handle_whois,0,1);
5975         createcommand("WALLOPS",handle_wallops,'o',1);
5976         createcommand("NOTICE",handle_notice,0,2);
5977         createcommand("JOIN",handle_join,0,1);
5978         createcommand("NAMES",handle_names,0,1);
5979         createcommand("PART",handle_part,0,1);
5980         createcommand("KICK",handle_kick,0,2);
5981         createcommand("MODE",handle_mode,0,1);
5982         createcommand("TOPIC",handle_topic,0,1);
5983         createcommand("WHO",handle_who,0,1);
5984         createcommand("MOTD",handle_motd,0,0);
5985         createcommand("RULES",handle_rules,0,0);
5986         createcommand("OPER",handle_oper,0,2);
5987         createcommand("LIST",handle_list,0,0);
5988         createcommand("DIE",handle_die,'o',1);
5989         createcommand("RESTART",handle_restart,'o',1);
5990         createcommand("KILL",handle_kill,'o',2);
5991         createcommand("REHASH",handle_rehash,'o',0);
5992         createcommand("LUSERS",handle_lusers,0,0);
5993         createcommand("STATS",handle_stats,0,1);
5994         createcommand("USERHOST",handle_userhost,0,1);
5995         createcommand("AWAY",handle_away,0,0);
5996         createcommand("ISON",handle_ison,0,0);
5997         createcommand("SUMMON",handle_summon,0,0);
5998         createcommand("USERS",handle_users,0,0);
5999         createcommand("INVITE",handle_invite,0,2);
6000         createcommand("PASS",handle_pass,0,1);
6001         createcommand("TRACE",handle_trace,'o',0);
6002         createcommand("WHOWAS",handle_whowas,0,1);
6003         createcommand("CONNECT",handle_connect,'o',1);
6004         createcommand("SQUIT",handle_squit,'o',1);
6005         createcommand("MODULES",handle_modules,'o',0);
6006         createcommand("LINKS",handle_links,0,0);
6007         createcommand("MAP",handle_map,0,0);
6008 }
6009
6010 void process_buffer(const char* cmdbuf,userrec *user)
6011 {
6012         if (!user)
6013         {
6014                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
6015                 return;
6016         }
6017         char cmd[MAXBUF];
6018         int i;
6019         if (!cmdbuf)
6020         {
6021                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
6022                 return;
6023         }
6024         if (!strcmp(cmdbuf,""))
6025         {
6026                 return;
6027         }
6028         strncpy(cmd,cmdbuf,MAXBUF);
6029         if (!strcmp(cmd,""))
6030         {
6031                 return;
6032         }
6033         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
6034         {
6035                 cmd[strlen(cmd)-1] = '\0';
6036         }
6037         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
6038         {
6039                 cmd[strlen(cmd)-1] = '\0';
6040         }
6041         if (!strcmp(cmd,""))
6042         {
6043                 return;
6044         }
6045         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
6046         tidystring(cmd);
6047         if ((user) && (cmd))
6048         {
6049                 process_command(user,cmd);
6050         }
6051 }
6052
6053 void DoSync(serverrec* serv, char* udp_host,int udp_port, long MyKey)
6054 {
6055         char data[MAXBUF];
6056         // send start of sync marker: Y <timestamp>
6057         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
6058         // except the ones its receiving it from.
6059         snprintf(data,MAXBUF,"Y %d",time(NULL));
6060         serv->SendPacket(data,udp_host,udp_port,MyKey);
6061         // send users and channels
6062         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
6063         {
6064                 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);
6065                 serv->SendPacket(data,udp_host,udp_port,MyKey);
6066                 if (strcmp(chlist(u->second),""))
6067                 {
6068                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
6069                         serv->SendPacket(data,udp_host,udp_port,MyKey);
6070                 }
6071         }
6072         // send channel modes, topics etc...
6073         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
6074         {
6075                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
6076                 serv->SendPacket(data,udp_host,udp_port,MyKey);
6077                 if (strcmp(c->second->topic,""))
6078                 {
6079                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
6080                         serv->SendPacket(data,udp_host,udp_port,MyKey);
6081                 }
6082                 // send current banlist
6083
6084                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
6085                 {
6086                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
6087                         serv->SendPacket(data,udp_host,udp_port,MyKey);
6088                 }
6089         }
6090         // send end of sync marker: E <timestamp>
6091         snprintf(data,MAXBUF,"F %d",time(NULL));
6092         serv->SendPacket(data,udp_host,udp_port,MyKey);
6093         // ircd sends its serverlist after the end of sync here
6094 }
6095
6096
6097 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6098 {
6099         char* src = strtok(params," ");
6100         char* dest = strtok(NULL," :");
6101         char* text = strtok(NULL,"\r\n");
6102         text++;
6103
6104         userrec* user = Find(src);
6105         if (user)
6106         {
6107                 userrec* dst = Find(dest);
6108
6109                 if (dst)
6110                 {
6111                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
6112                 }
6113                 else
6114                 {
6115                         chanrec* d = FindChan(dest);
6116                         if (d)
6117                         {
6118                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
6119                         }
6120                 }
6121         }
6122
6123 }
6124
6125
6126 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6127 {
6128         char* src = strtok(params," ");
6129         char* dest = strtok(NULL," :");
6130         char* text = strtok(NULL,"\r\n");
6131         text++;
6132
6133         userrec* user = Find(src);
6134         if (user)
6135         {
6136                 userrec* dst = Find(dest);
6137
6138                 if (dst)
6139                 {
6140                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
6141                 }
6142                 else
6143                 {
6144                         chanrec* d = FindChan(dest);
6145                         if (d)
6146                         {
6147                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
6148                         }
6149                 }
6150         }
6151
6152 }
6153
6154 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6155 {
6156         char* nick = strtok(params," ");
6157         char* from = strtok(NULL," ");
6158         char* channel = strtok(NULL," ");
6159         userrec* u = Find(nick);
6160         userrec* user = Find(from);
6161         chanrec* c = FindChan(channel);
6162         if ((c) && (u) && (user))
6163         {
6164                 u->InviteTo(c->name);
6165                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
6166         }
6167 }
6168
6169 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6170 {
6171         char* setby = strtok(params," ");
6172         char* channel = strtok(NULL," :");
6173         char* topic = strtok(NULL,"\r\n");
6174         topic++;
6175         userrec* u = Find(setby);
6176         chanrec* c = FindChan(channel);
6177         if ((c) && (u))
6178         {
6179                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
6180                 strncpy(c->topic,topic,MAXTOPIC);
6181                 strncpy(c->setby,u->nick,NICKMAX);
6182         }
6183 }
6184
6185
6186 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6187 {
6188         char* tm = strtok(params," ");
6189         char* setby = strtok(NULL," ");
6190         char* channel = strtok(NULL," :");
6191         char* topic = strtok(NULL,"\r\n");
6192         topic++;
6193         time_t TS = atoi(tm);
6194         chanrec* c = FindChan(channel);
6195         if (c)
6196         {
6197                 // in the case of topics and TS, the *NEWER*
6198                 if (TS <= c->topicset)
6199                 {
6200                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6201                         strncpy(c->topic,topic,MAXTOPIC);
6202                         strncpy(c->setby,setby,NICKMAX);
6203                 }
6204         }
6205 }
6206
6207 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6208 {
6209         char* pars[128];
6210         char original[MAXBUF],target[MAXBUF];
6211         strncpy(original,params,MAXBUF);
6212         int index = 0;
6213         char* parameter = strtok(params," ");
6214         strncpy(target,parameter,MAXBUF);
6215         while (parameter)
6216         {
6217                 pars[index++] = parameter;
6218                 parameter = strtok(NULL," ");
6219         }
6220         merge_mode(pars,index);
6221         if (FindChan(target))
6222         {
6223                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6224         }
6225         if (Find(target))
6226         {
6227                 WriteTo(NULL,Find(target),"MODE %s",original);
6228         }
6229 }
6230
6231 // m is modes set by users only (not servers) valid targets are channels or users.
6232
6233 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6234 {
6235         // m blah #chatspike +b *!test@*4
6236         char* pars[128];
6237         char original[MAXBUF];
6238         strncpy(original,params,MAXBUF);
6239
6240         if (!strchr(params,' '))
6241         {
6242                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6243                 return;
6244         }
6245
6246         int index = 0;
6247
6248         char* src = strtok(params," ");
6249         userrec* user = Find(src);
6250
6251         if (user)
6252         {
6253                 log(DEBUG,"Found user: %s",user->nick);
6254                 char* parameter = strtok(NULL," ");
6255                 while (parameter)
6256                 {
6257                         pars[index++] = parameter;
6258                         parameter = strtok(NULL," ");
6259                 }
6260
6261                 log(DEBUG,"Calling merge_mode2");
6262                 merge_mode2(pars,index,user);
6263         }
6264 }
6265
6266
6267 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6268 {
6269         char* nick = strtok(params," ");
6270         char* channel = strtok(NULL," :");
6271         char* reason = strtok(NULL,"\r\n");
6272         userrec* user = Find(nick);
6273         reason++;
6274         if (user)
6275         {
6276                 if (strcmp(reason,""))
6277                 {
6278                         del_channel(user,channel,reason,true);
6279                 }
6280                 else
6281                 {
6282                         del_channel(user,channel,NULL,true);
6283                 }
6284         }
6285 }
6286
6287 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6288 {
6289         char* src = strtok(params," ");
6290         char* nick = strtok(NULL," :");
6291         char* reason = strtok(NULL,"\r\n");
6292         char kreason[MAXBUF];
6293         reason++;
6294
6295         userrec* u = Find(nick);
6296         userrec* user = Find(src);
6297
6298         if ((user) && (u))
6299         {
6300                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
6301                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
6302                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
6303                 kill_link(u,kreason);
6304         }
6305 }
6306
6307 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6308 {
6309         char* nick = strtok(params," :");
6310         char* reason = strtok(NULL,"\r\n");
6311         reason++;
6312
6313         userrec* user = Find(nick);
6314
6315         if (user)
6316         {
6317                 if (strlen(reason)>MAXQUIT)
6318                 {
6319                         reason[MAXQUIT-1] = '\0';
6320                 }
6321
6322
6323                 WriteCommonExcept(user,"QUIT :%s",reason);
6324
6325                 user_hash::iterator iter = clientlist.find(user->nick);
6326
6327                 if (iter != clientlist.end())
6328                 {
6329                         log(DEBUG,"deleting user hash value %d",iter->second);
6330                         if ((iter->second) && (user->registered == 7)) {
6331                                 delete iter->second;
6332                         }
6333                         clientlist.erase(iter);
6334                 }
6335
6336                 purge_empty_chans();
6337         }
6338 }
6339
6340 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6341 {
6342         char* oldnick = strtok(params," ");
6343         char* newnick = strtok(NULL," ");
6344
6345         userrec* user = Find(oldnick);
6346
6347         if (user)
6348         {
6349                 WriteCommon(user,"NICK %s",newnick);
6350                 user = ReHashNick(user->nick, newnick);
6351                 if (!user) return;
6352                 if (!user->nick) return;
6353                 strncpy(user->nick, newnick,NICKMAX);
6354                 log(DEBUG,"new nick set: %s",user->nick);
6355         }
6356 }
6357
6358 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6359 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6360 {
6361         char* src = strtok(params," ");
6362         char* dest = strtok(NULL," ");
6363         char* channel = strtok(NULL," :");
6364         char* reason = strtok(NULL,"\r\n");
6365         reason++;
6366         userrec* s = Find(src);
6367         userrec* d = Find(dest);
6368         chanrec* c = FindChan(channel);
6369         if ((s) && (d) && (c))
6370         {
6371                 kick_channel(s,d,c,reason);
6372         }
6373 }
6374
6375 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6376 {
6377         char* who = strtok(params," :");
6378         char* text = strtok(NULL,"\r\n");
6379         text++;
6380         userrec* s = Find(who);
6381         if (s)
6382         {
6383                 WriteWallOps(s,true,text);
6384         }
6385 }
6386
6387
6388 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6389 {
6390         char* tm = strtok(params," ");
6391         char* nick = strtok(NULL," ");
6392         char* host = strtok(NULL," ");
6393         char* dhost = strtok(NULL," ");
6394         char* ident = strtok(NULL," ");
6395         char* modes = strtok(NULL," ");
6396         char* server = strtok(NULL," :");
6397         char* gecos = strtok(NULL,"\r\n");
6398         gecos++;
6399         modes++;
6400         time_t TS = atoi(tm);
6401         user_hash::iterator iter = clientlist.find(nick);
6402         if (iter != clientlist.end())
6403         {
6404                 // nick collision
6405                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6406                 if (TS >= iter->second->age)
6407                 {
6408                         char str[MAXBUF];
6409                         snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6410                         WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6411                         // client on remote server is older than the local user, kill the local user
6412                         kill_link(iter->second,str);
6413                 }
6414         }
6415         clientlist[nick] = new userrec();
6416         // remote users have an fd of -1. This is so that our Write abstraction
6417         // routines know to route any messages to this record away to whatever server
6418         // theyre on.
6419         clientlist[nick]->fd = -1;
6420         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6421         strncpy(clientlist[nick]->host, host,160);
6422         strncpy(clientlist[nick]->dhost, dhost,160);
6423         strncpy(clientlist[nick]->server, server,256);
6424         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for '~'
6425         strncpy(clientlist[nick]->fullname, gecos,128);
6426         clientlist[nick]->signon = TS;
6427         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6428         clientlist[nick]->lastping = 1;
6429         clientlist[nick]->port = 0; // so is this...
6430         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6431         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6432         for (int i = 0; i < MAXCHANS; i++)
6433         {
6434                 clientlist[nick]->chans[i].channel = NULL;
6435                 clientlist[nick]->chans[i].uc_modes = 0;
6436         }
6437 }
6438
6439 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6440 {
6441         long tdiff = time(NULL) - atoi(params);
6442         if (tdiff)
6443                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6444 }
6445
6446 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6447 {
6448         // IMPORTANT NOTE
6449         // The J token currently has no timestamp - this needs looking at
6450         // because it will allow splitriding.
6451         char* nick = strtok(params," ");
6452         char* channel = strtok(NULL," ");
6453         userrec* user = Find(nick);
6454         while (channel)
6455         {
6456                 if ((user != NULL) && (strcmp(channel,"")))
6457                 {
6458                         char privilage = '\0';
6459                         if (channel[0] != '#')
6460                         {
6461                                 privilage = channel[0];
6462                                 channel++;
6463                         }
6464                         add_channel(user,channel,"",true);
6465
6466                         // now work out the privilages they should have on each channel
6467                         // and send the appropriate servermodes.
6468                         for (int i = 0; i != MAXCHANS; i++)
6469                         {
6470                                 if (user->chans[i].channel)
6471                                 {
6472                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6473                                         {
6474                                                 if (privilage == '@')
6475                                                 {
6476                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6477                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6478                                                 }
6479                                                 if (privilage == '%')
6480                                                 {
6481                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6482                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6483                                                 }
6484                                                 if (privilage == '+')
6485                                                 {
6486                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6487                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6488                                                 }
6489                                         }
6490                                 }
6491                         }
6492
6493                 }
6494                 channel = strtok(NULL," ");
6495         }
6496 }
6497
6498 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6499 {
6500         switch(token)
6501         {
6502                 // Y <TS>
6503                 // start netburst
6504                 case 'Y':
6505                         nb_start = time(NULL);
6506                         WriteOpers("Server %s is starting netburst.",source->name);
6507                 break;
6508                 // ?
6509                 // ping
6510                 case '?':
6511                         reply->SendPacket("!",udp_host,udp_port,MyKey);
6512                 break;
6513                 // ?
6514                 // pong
6515                 case '!':
6516                 break;
6517                 // *
6518                 // no operation
6519                 case '*':
6520                 break;
6521                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6522                 // introduce remote client
6523                 case 'N':
6524                         handle_N(token,params,source,reply,udp_host,udp_port);
6525                 break;
6526                 // t <NICK> <CHANNEL> :<TOPIC>
6527                 // change a channel topic
6528                 case 't':
6529                         handle_t(token,params,source,reply,udp_host,udp_port);
6530                 break;
6531                 // i <NICK> <CHANNEL>
6532                 // invite a user to a channel
6533                 case 'i':
6534                         handle_i(token,params,source,reply,udp_host,udp_port);
6535                 break;
6536                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6537                 // kick a user from a channel
6538                 case 'k':
6539                         handle_k(token,params,source,reply,udp_host,udp_port);
6540                 break;
6541                 // n <NICK> <NEWNICK>
6542                 // change nickname of client -- a server should only be able to
6543                 // change the nicknames of clients that reside on it unless
6544                 // they are ulined.
6545                 case 'n':
6546                         handle_n(token,params,source,reply,udp_host,udp_port);
6547                 break;
6548                 // J <NICK> <CHANLIST>
6549                 // Join user to channel list, merge channel permissions
6550                 case 'J':
6551                         handle_J(token,params,source,reply,udp_host,udp_port);
6552                 break;
6553                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6554                 // change channel topic (netburst only)
6555                 case 'T':
6556                         handle_T(token,params,source,reply,udp_host,udp_port);
6557                 break;
6558                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6559                 // Server setting modes on an object
6560                 case 'M':
6561                         handle_M(token,params,source,reply,udp_host,udp_port);
6562                 break;
6563                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6564                 // User setting modes on an object
6565                 case 'm':
6566                         handle_m(token,params,source,reply,udp_host,udp_port);
6567                 break;
6568                 // P <SOURCE> <TARGET> :<TEXT>
6569                 // Send a private/channel message
6570                 case 'P':
6571                         handle_P(token,params,source,reply,udp_host,udp_port);
6572                 break;
6573                 // V <SOURCE> <TARGET> :<TEXT>
6574                 // Send a private/channel notice
6575                 case 'V':
6576                         handle_V(token,params,source,reply,udp_host,udp_port);
6577                 break;
6578                 // L <SOURCE> <CHANNEL> :<REASON>
6579                 // User parting a channel
6580                 case 'L':
6581                         handle_L(token,params,source,reply,udp_host,udp_port);
6582                 break;
6583                 // Q <SOURCE> :<REASON>
6584                 // user quitting
6585                 case 'Q':
6586                         handle_Q(token,params,source,reply,udp_host,udp_port);
6587                 break;
6588                 // K <SOURCE> <DEST> :<REASON>
6589                 // remote kill
6590                 case 'K':
6591                         handle_K(token,params,source,reply,udp_host,udp_port);
6592                 break;
6593                 // @ <SOURCE> :<TEXT>
6594                 // wallops
6595                 case '@':
6596                         handle_AT(token,params,source,reply,udp_host,udp_port);
6597                 break;
6598                 // F <TS>
6599                 // end netburst
6600                 case 'F':
6601                         WriteOpers("Server %s has completed netburst. (%d secs)",source->name,time(NULL)-nb_start);
6602                         handle_F(token,params,source,reply,udp_host,udp_port);
6603                 break;
6604                 // anything else
6605                 default:
6606                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6607                 break;
6608         }
6609 }
6610
6611
6612 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
6613 {
6614         char response[10240];
6615         char token = udp_msg[0];
6616         char* params = udp_msg + 2;
6617         char finalparam[1024];
6618         strcpy(finalparam," :xxxx");
6619         if (strstr(params," :")) {
6620                 strncpy(finalparam,strstr(params," :"),1024);
6621         }
6622         if (token == 'S') {
6623                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6624                 char* servername = strtok(params," ");
6625                 char* password = strtok(NULL," ");
6626                 char* serverdesc = finalparam+2;
6627                 WriteOpers("CONNECT from %s (%s)",servername,udp_host);
6628
6629
6630                 char Link_ServerName[1024];
6631                 char Link_IPAddr[1024];
6632                 char Link_Port[1024];
6633                 char Link_Pass[1024];
6634                 char Link_SendPass[1024];
6635                 int LinkPort = 0;
6636
6637                 // search for a corresponding <link> block in the config files
6638                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6639                 {
6640                         ConfValue("link","name",i,Link_ServerName,&config_f);
6641                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6642                         ConfValue("link","port",i,Link_Port,&config_f);
6643                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6644                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6645                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6646                         LinkPort = atoi(Link_Port);
6647                         if (!strcasecmp(Link_ServerName,servername)) {
6648                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6649                                         if (LinkPort == udp_port) {
6650                                                 // we have a matching link line -
6651                                                 // send a 'diminutive' server message back...
6652                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6653                                                 serv->SendPacket(response,udp_host,udp_port,0);
6654                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
6655                                                 for (int j = 0; j < 255; j++) {
6656                                                         if (servers[j] == NULL) {
6657                                                                 servers[j] = new serverrec;
6658                                                                 strcpy(servers[j]->internal_addr,udp_host);
6659                                                                 strcpy(servers[j]->name,servername);
6660                                                                 strcpy(servers[j]->description,serverdesc);
6661                                                                 servers[j]->internal_port = udp_port;
6662                                                                 // create a server record for this server
6663                                                                 WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6664                                                                 snprintf(response,10240,"O %d",MyKey);
6665                                                                 serv->SendPacket(response,udp_host,udp_port,0);
6666                                                                 return;
6667                                                         }
6668                                                 }
6669                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
6670                                                 return;
6671                                         }
6672                                         else {
6673                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6674                                         }
6675                                 }
6676                                 else {
6677                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6678                                 }
6679                         }
6680                         else {
6681                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6682                         }
6683                 }
6684                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6685                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6686                 return;
6687         }
6688         else
6689         if (token == 'O') {
6690                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
6691                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
6692                 // array, which is only added by an 'S' packet or BeginLink().
6693                 for (int i = 0; i < 255; i++) {
6694                         if (servers[i] != NULL) {
6695                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
6696                                         servers[i]->key = atoi(params);
6697                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
6698                                         DoSync(serv,udp_host,udp_port,MyKey);
6699                                         return;
6700                                 }
6701                         }
6702                 }
6703                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
6704         }
6705         else
6706         if (token == 's') {
6707                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6708                 char* servername = strtok(params," ");
6709                 char* password = strtok(NULL," ");
6710                 char* serverdesc = finalparam+2;
6711
6712                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6713                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6714                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6715                 // a connect, so put out an oper alert!
6716
6717
6718
6719
6720                 // for now, just accept all, we'll fix that later.
6721                 WriteOpers("%s accepted our link credentials ",servername);
6722
6723                 char Link_ServerName[1024];
6724                 char Link_IPAddr[1024];
6725                 char Link_Port[1024];
6726                 char Link_Pass[1024];
6727                 char Link_SendPass[1024];
6728                 int LinkPort = 0;
6729
6730                 // search for a corresponding <link> block in the config files
6731                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6732                 {
6733                         ConfValue("link","name",i,Link_ServerName,&config_f);
6734                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6735                         ConfValue("link","port",i,Link_Port,&config_f);
6736                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6737                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6738                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6739                         LinkPort = atoi(Link_Port);
6740                         if (!strcasecmp(Link_ServerName,servername)) {
6741                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6742                                         if (LinkPort == udp_port) {
6743                                                 // matching link at this end too, we're all done!
6744                                                 // at this point we must begin key exchange and insert this
6745                                                 // server into our 'active' table.
6746                                                 for (int j = 0; j < 255; j++) {
6747                                                         if (servers[j] != NULL) {
6748                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6749                                                                         strcpy(servers[j]->description,serverdesc);
6750                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6751                                                                         snprintf(response,10240,"O %d",MyKey);
6752                                                                         serv->SendPacket(response,udp_host,udp_port,0);
6753                                                                         return;
6754                                                                 }
6755                                                         }
6756                                                 }
6757                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6758                                                 return;
6759
6760                                         }
6761                                         else {
6762                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6763                                         }
6764                                 }
6765                                 else {
6766                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6767                                 }
6768                         }
6769                         else {
6770                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6771                         }
6772                 }
6773                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6774                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6775                 return;
6776         }
6777         else
6778         if (token == 'E') {
6779                 char* error_message = finalparam+2;
6780                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6781                 // remove this server from any lists
6782                 for (int j = 0; j < 255; j++) {
6783                         if (servers[j] != NULL) {
6784                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6785                                         delete servers[j];
6786                                         return;
6787                                 }
6788                         }
6789                 }
6790                 return;
6791         }
6792         else {
6793
6794                 serverrec* source_server = NULL;
6795
6796                 for (int j = 0; j < 255; j++) {
6797                         if (servers[j] != NULL) {
6798                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6799                                         if (servers[j]->key == theirkey) {
6800                                                 // found a valid key for this server, can process restricted stuff here
6801                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
6802                                                 return;
6803                                         }
6804                                 }
6805                         }
6806                 }
6807
6808                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
6809         }
6810 }
6811
6812 int reap_counter = 0;
6813
6814 int InspIRCd(void)
6815 {
6816         struct sockaddr_in client, server;
6817         char addrs[MAXBUF][255];
6818         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6819         socklen_t length;
6820         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6821         int selectResult = 0, selectResult2 = 0;
6822         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6823         char resolvedHost[MAXBUF];
6824         fd_set selectFds;
6825         struct timeval tv;
6826
6827         log_file = fopen("ircd.log","a+");
6828         if (!log_file)
6829         {
6830                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6831                 Exit(ERROR);
6832         }
6833
6834         log(DEBUG,"InspIRCd: startup: begin");
6835         log(DEBUG,"$Id$");
6836         if (geteuid() == 0)
6837         {
6838                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6839                 Exit(ERROR);
6840                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6841         }
6842         SetupCommandTable();
6843         log(DEBUG,"InspIRCd: startup: default command table set up");
6844
6845         ReadConfig();
6846         if (strcmp(DieValue,""))
6847         {
6848                 printf("WARNING: %s\n\n",DieValue);
6849                 exit(0);
6850         }
6851         log(DEBUG,"InspIRCd: startup: read config");
6852
6853         int count2 = 0, count3 = 0;
6854
6855         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6856         {
6857                 ConfValue("bind","port",count,configToken,&config_f);
6858                 ConfValue("bind","address",count,Addr,&config_f);
6859                 ConfValue("bind","type",count,Type,&config_f);
6860                 if (!strcmp(Type,"servers"))
6861                 {
6862                         char Default[MAXBUF];
6863                         strcpy(Default,"no");
6864                         ConfValue("bind","default",count,Default,&config_f);
6865                         if (strchr(Default,'y'))
6866                         {
6867                                 defaultRoute = count3;
6868                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6869                         }
6870                         me[count3] = new serverrec(ServerName,100L,false);
6871                         me[count3]->CreateListener(Addr,atoi(configToken));
6872                         count3++;
6873                 }
6874                 else
6875                 {
6876                         ports[count2] = atoi(configToken);
6877                         strcpy(addrs[count2],Addr);
6878                         count2++;
6879                 }
6880                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6881         }
6882         portCount = count2;
6883         UDPportCount = count3;
6884
6885         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6886
6887         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6888
6889         printf("\n");
6890
6891         /* BugFix By Craig! :p */
6892         count = 0;
6893         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6894         {
6895                 char modfile[MAXBUF];
6896                 ConfValue("module","name",count2,configToken,&config_f);
6897                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6898                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6899                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6900                 /* If The File Doesnt exist, Trying to load it
6901                  * Will Segfault the IRCd.. So, check to see if
6902                  * it Exists, Before Proceeding. */
6903                 if (FileExists(modfile))
6904                 {
6905                         factory[count] = new ircd_module(modfile);
6906                         if (factory[count]->LastError())
6907                         {
6908                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6909                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6910                                 Exit(ERROR);
6911                         }
6912                         if (factory[count]->factory)
6913                         {
6914                                 modules[count] = factory[count]->factory->CreateModule();
6915                                 /* save the module and the module's classfactory, if
6916                                  * this isnt done, random crashes can occur :/ */
6917                                 module_names.push_back(modfile);
6918                         }
6919                         else
6920                         {
6921                                 log(DEBUG,"Unable to load %s",modfile);
6922                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6923                                 Exit(ERROR);
6924                         }
6925                         /* Increase the Count */
6926                         count++;
6927                 }
6928                 else
6929                 {
6930                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6931                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6932                 }
6933         }
6934         MODCOUNT = count - 1;
6935         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6936
6937         printf("\nInspIRCd is now running!\n");
6938
6939         startup_time = time(NULL);
6940
6941         if (nofork)
6942         {
6943                 log(VERBOSE,"Not forking as -nofork was specified");
6944         }
6945         else
6946         {
6947                 if (DaemonSeed() == ERROR)
6948                 {
6949                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6950                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6951                         Exit(ERROR);
6952                 }
6953         }
6954
6955
6956         /* setup select call */
6957         FD_ZERO(&selectFds);
6958         log(DEBUG,"InspIRCd: startup: zero selects");
6959         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
6960
6961         for (count = 0; count < portCount; count++)
6962         {
6963                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
6964                 {
6965                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
6966                         return(ERROR);
6967                 }
6968                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
6969                 {
6970                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
6971                 }
6972                 else    /* well we at least bound to one socket so we'll continue */
6973                 {
6974                         boundPortCount++;
6975                 }
6976         }
6977
6978         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
6979
6980         /* if we didn't bind to anything then abort */
6981         if (boundPortCount == 0)
6982         {
6983                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
6984                 return (ERROR);
6985         }
6986
6987         length = sizeof (client);
6988         int flip_flop = 0, udp_port = 0;
6989         char udp_msg[MAXBUF], udp_host[MAXBUF];
6990
6991         /* main loop, this never returns */
6992         for (;;)
6993         {
6994
6995                 fd_set sfd;
6996                 timeval tval;
6997                 FD_ZERO(&sfd);
6998
6999                 user_hash::iterator count2 = clientlist.begin();
7000
7001                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
7002                 // them in a list, then reap the list every second or so.
7003                 if (reap_counter>5000)
7004                 {
7005                         if (fd_reap.size() > 0)
7006                         {
7007                                 for( int n = 0; n < fd_reap.size(); n++)
7008                                 {
7009                                         Blocking(fd_reap[n]);
7010                                         close(fd_reap[n]);
7011                                         NonBlocking(fd_reap[n]);
7012                                 }
7013                         }
7014                         fd_reap.clear();
7015                         reap_counter=0;
7016                 }
7017
7018
7019                 for (int x = 0; x != UDPportCount; x++)
7020                 {
7021                         long theirkey = 0;
7022                         if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
7023                         {
7024                                 if (strlen(udp_msg)<1) {
7025                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
7026                         }
7027                         else
7028                         {
7029                                 FOREACH_MOD OnPacketReceive(udp_msg);
7030                                 // Packets must go back via the route they arrived on :)
7031                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
7032                                 // link packets can manipulate the usertable so beware of
7033                                 // any loops here watching the user or channels hash
7034                                 log(DEBUG,"Sync: exit 3");
7035                                 goto label;
7036                         }
7037                 }
7038         }
7039
7040
7041         while (count2 != clientlist.end())
7042         {
7043                 char data[10240];
7044                 tval.tv_usec = tval.tv_sec = 0;
7045                 FD_ZERO(&sfd);
7046                 int total_in_this_set = 0;
7047
7048                 user_hash::iterator xcount = count2;
7049                 user_hash::iterator endingiter = count2;
7050
7051                 if (!count2->second) break;
7052
7053                 if (count2->second)
7054                 if (count2->second->fd != 0)
7055                 {
7056                         // assemble up to 64 sockets into an fd_set
7057                         // to implement a pooling mechanism.
7058                         //
7059                         // This should be up to 64x faster than the
7060                         // old implementation.
7061                         while (total_in_this_set < 64)
7062                         {
7063                                 if (count2 != clientlist.end())
7064                                 {
7065                                         // we don't check the state of remote users.
7066                                         if (count2->second->fd > 0)
7067                                         {
7068                                                 FD_SET (count2->second->fd, &sfd);
7069
7070                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
7071                                                 // their connection class.
7072                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
7073                                                 {
7074                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
7075                                                         kill_link(count2->second,"Registration timeout");
7076                                                         goto label;
7077                                                 }
7078                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
7079                                                 {
7080                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
7081                                                         {
7082                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
7083                                                                 kill_link(count2->second,"Ping timeout");
7084                                                                 goto label;
7085                                                         }
7086                                                         Write(count2->second->fd,"PING :%s",ServerName);
7087                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
7088                                                         count2->second->lastping = 0;
7089                                                         count2->second->nping = time(NULL)+120;
7090                                                 }
7091                                         }
7092                                         count2++;
7093                                         total_in_this_set++;
7094                                 }
7095                                 else break;
7096                         }
7097
7098                         endingiter = count2;
7099                         count2 = xcount; // roll back to where we were
7100
7101                         int v = 0;
7102
7103                         tval.tv_usec = 0;
7104                         tval.tv_sec = 0;
7105                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
7106
7107                         // now loop through all of the items in this pool if any are waiting
7108                         //if (selectResult2 > 0)
7109                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
7110                         {
7111                                 result = EAGAIN;
7112                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
7113                                 {
7114                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
7115                                         memset(data, 0, 10240);
7116                                         result = read(count2a->second->fd, data, 10240);
7117
7118                                         if (result)
7119                                         {
7120                                                 log(DEBUG,"Read %d characters from socket",result);
7121                                                 userrec* current = count2a->second;
7122                                                 int currfd = current->fd;
7123                                                 char* l = strtok(data,"\n");
7124                                                 int floodlines = 0;
7125                                                 while (l)
7126                                                 {
7127                                                         floodlines++;
7128                                                         if ((floodlines > current->flood) && (current->flood != 0))
7129                                                         {
7130                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7131                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7132                                                                 kill_link(current,"Excess flood");
7133                                                                 goto label;
7134                                                         }
7135                                                         char sanitized[NetBufferSize];
7136                                                         memset(sanitized, 0, NetBufferSize);
7137                                                         int ptt = 0;
7138                                                         for (int pt = 0; pt < strlen(l); pt++)
7139                                                         {
7140                                                                 if (l[pt] != '\r')
7141                                                                 {
7142                                                                         sanitized[ptt++] = l[pt];
7143                                                                 }
7144                                                         }
7145                                                         sanitized[ptt] = '\0';
7146                                                         if (strlen(sanitized))
7147                                                         {
7148
7149
7150                                                                 // we're gonna re-scan to check if the nick is gone, after every
7151                                                                 // command - if it has, we're gonna bail
7152                                                                 bool find_again = false;
7153                                                                 process_buffer(sanitized,current);
7154
7155                                                                 // look for the user's record in case it's changed
7156                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
7157                                                                 {
7158                                                                         if (c2->second->fd == currfd)
7159                                                                         {
7160                                                                                 // found again, update pointer
7161                                                                                 current == c2->second;
7162                                                                                 find_again = true;
7163                                                                                 break;
7164                                                                         }
7165                                                                 }
7166                                                                 if (!find_again)
7167                                                                         goto label;
7168
7169                                                         }
7170                                                         l = strtok(NULL,"\n");
7171                                                 }
7172                                                 goto label;
7173                                         }
7174
7175                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
7176                                         {
7177                                                 log(DEBUG,"killing: %s",count2a->second->nick);
7178                                                 kill_link(count2a->second,strerror(errno));
7179                                                 goto label;
7180                                         }
7181                                 }
7182                                 // result EAGAIN means nothing read
7183                                 if (result == EAGAIN)
7184                                 {
7185                                 }
7186                                 else
7187                                 if (result == 0)
7188                                 {
7189                                         if (count2->second)
7190                                         {
7191                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
7192                                                 kill_link(count2a->second,"Client exited");
7193                                                 // must bail here? kill_link removes the hash, corrupting the iterator
7194                                                 log(DEBUG,"Bailing from client exit");
7195                                                 goto label;
7196                                         }
7197                                 }
7198                                 else if (result > 0)
7199                                 {
7200                                 }
7201                         }
7202                 }
7203                 for (int q = 0; q < total_in_this_set; q++)
7204                 {
7205                         // there is no iterator += operator :(
7206                         //if (count2 != clientlist.end())
7207                         //{
7208                                 count2++;
7209                         //}
7210                 }
7211         }
7212
7213         // set up select call
7214         for (count = 0; count < boundPortCount; count++)
7215         {
7216                 FD_SET (openSockfd[count], &selectFds);
7217         }
7218
7219         /* added timeout! select was waiting forever... wank... :/ */
7220         tv.tv_usec = 0;
7221
7222         flip_flop++;
7223         reap_counter++;
7224         if (flip_flop > 20)
7225         {
7226                 tv.tv_usec = 1;
7227                 flip_flop = 0;
7228         }
7229
7230         tv.tv_sec = 0;
7231         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
7232
7233         /* select is reporting a waiting socket. Poll them all to find out which */
7234         if (selectResult > 0)
7235         {
7236                 char target[MAXBUF], resolved[MAXBUF];
7237                 for (count = 0; count < boundPortCount; count++)
7238                 {
7239                         if (FD_ISSET (openSockfd[count], &selectFds))
7240                         {
7241                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
7242
7243                                 address_cache::iterator iter = IP.find(client.sin_addr);
7244                                 bool iscached = false;
7245                                 if (iter == IP.end())
7246                                 {
7247                                         /* ip isn't in cache, add it */
7248                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7249                                         if(CleanAndResolve(resolved, target) != TRUE)
7250                                         {
7251                                                 strncpy(resolved,target,MAXBUF);
7252                                         }
7253                                         /* hostname now in 'target' */
7254                                         IP[client.sin_addr] = new string(resolved);
7255                                         /* hostname in cache */
7256                                 }
7257                                 else
7258                                 {
7259                                         /* found ip (cached) */
7260                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7261                                         iscached = true;
7262                                 }
7263
7264                                 if (incomingSockfd < 0)
7265                                 {
7266                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7267                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7268                                 }
7269                                 else
7270                                 {
7271                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7272                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7273                                 }
7274                                 goto label;
7275                         }
7276                 }
7277         }
7278         label:
7279         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7280 }
7281 /* not reached */
7282 close (incomingSockfd);
7283 }
7284