src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include "connection.h"
  45 #include "users.h"
  46 #include "servers.h"
  47 #include "ctables.h"
  48 #include "globals.h"
  49 #include "modules.h"
  50 #include "dynamic.h"
  51 #include "wildcard.h"
  52
  53 #ifdef GCC3
  54 #define nspace __gnu_cxx
  55 #else
  56 #define nspace std
  57 #endif
  58
  59 int LogLevel = DEFAULT;
  60 char ServerName[MAXBUF];
  61 char Network[MAXBUF];
  62 char ServerDesc[MAXBUF];
  63 char AdminName[MAXBUF];
  64 char AdminEmail[MAXBUF];
  65 char AdminNick[MAXBUF];
  66 char diepass[MAXBUF];
  67 char restartpass[MAXBUF];
  68 char motd[MAXBUF];
  69 char rules[MAXBUF];
  70 char list[MAXBUF];
  71 char PrefixQuit[MAXBUF];
  72 char DieValue[MAXBUF];
  73 int debugging =  0;
  74 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  75 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  76 int DieDelay  =  5;
  77 time_t startup_time = time(NULL);
  78 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  79 time_t nb_start = time(NULL);
  80
  81 extern vector<Module*> modules;
  82 std::vector<std::string> module_names;
  83 extern vector<ircd_module*> factory;
  84 std::vector<int> fd_reap;
  85
  86 extern int MODCOUNT;
  87
  88 bool nofork = false;
  89
  90 namespace nspace
  91 {
  92         template<> struct nspace::hash<in_addr>
  93         {
  94                 size_t operator()(const struct in_addr &a) const
  95                 {
  96                         size_t q;
  97                         memcpy(&q,&a,sizeof(size_t));
  98                         return q;
  99                 }
 100         };
 101
 102         template<> struct nspace::hash<string>
 103         {
 104                 size_t operator()(const string &s) const
 105                 {
 106                         char a[MAXBUF];
 107                         static struct hash<const char *> strhash;
 108                         strcpy(a,s.c_str());
 109                         strlower(a);
 110                         return strhash(a);
 111                 }
 112         };
 113 }
 114
 115
 116 struct StrHashComp
 117 {
 118
 119         bool operator()(const string& s1, const string& s2) const
 120         {
 121                 char a[MAXBUF],b[MAXBUF];
 122                 strcpy(a,s1.c_str());
 123                 strcpy(b,s2.c_str());
 124                 return (strcasecmp(a,b) == 0);
 125         }
 126
 127 };
 128
 129 struct InAddr_HashComp
 130 {
 131
 132         bool operator()(const in_addr &s1, const in_addr &s2) const
 133         {
 134                 size_t q;
 135                 size_t p;
 136
 137                 memcpy(&q,&s1,sizeof(size_t));
 138                 memcpy(&p,&s2,sizeof(size_t));
 139
 140                 return (q == p);
 141         }
 142
 143 };
 144
 145
 146 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 147 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 148 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 149 typedef std::deque<command_t> command_table;
 150
 151 serverrec* me[32];
 152 serverrec* servers[255];
 153
 154 FILE *log_file;
 155
 156 user_hash clientlist;
 157 chan_hash chanlist;
 158 user_hash whowas;
 159 command_table cmdlist;
 160 file_cache MOTD;
 161 file_cache RULES;
 162 address_cache IP;
 163
 164 ClassVector Classes;
 165
 166 struct linger linger = { 0 };
 167 char bannerBuffer[MAXBUF];
 168 int boundPortCount = 0;
 169 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 170 int defaultRoute = 0;
 171
 172 connection C;
 173
 174 long MyKey = C.GenKey();
 175
 176 /* prototypes */
 177
 178 int has_channel(userrec *u, chanrec *c);
 179 int usercount(chanrec *c);
 180 int usercount_i(chanrec *c);
 181 void update_stats_l(int fd,int data_out);
 182 char* Passwd(userrec *user);
 183 bool IsDenied(userrec *user);
 184 void AddWhoWas(userrec* u);
 185
 186 std::stringstream config_f(stringstream::in | stringstream::out);
 187
 188 void safedelete(userrec *p)
 189 {
 190         if (p)
 191         {
 192                 log(DEBUG,"deleting %s %s %s %s",p->nick,p->ident,p->dhost,p->fullname);
 193                 log(DEBUG,"safedelete(userrec*): pointer is safe to delete");
 194                 delete p;
 195                 p = NULL;
 196         }
 197         else
 198         {
 199                 log(DEBUG,"safedelete(userrec*): unsafe pointer operation squished");
 200         }
 201 }
 202
 203 void safedelete(chanrec *p)
 204 {
 205         if (p)
 206         {
 207                 delete p;
 208                 p = NULL;
 209                 log(DEBUG,"safedelete(chanrec*): pointer is safe to delete");
 210         }
 211         else
 212         {
 213                 log(DEBUG,"safedelete(chanrec*): unsafe pointer operation squished");
 214         }
 215 }
 216
 217
 218 void tidystring(char* str)
 219 {
 220         // strips out double spaces before a : parameter
 221
 222         char temp[MAXBUF];
 223         bool go_again = true;
 224
 225         if (!str)
 226         {
 227                 return;
 228         }
 229
 230         while ((str[0] == ' ') && (strlen(str)>0))
 231         {
 232                 str++;
 233         }
 234
 235         while (go_again)
 236         {
 237                 bool noparse = false;
 238                 int t = 0, a = 0;
 239                 go_again = false;
 240                 while (a < strlen(str))
 241                 {
 242                         if ((a<strlen(str)-1) && (noparse==false))
 243                         {
 244                                 if ((str[a] == ' ') && (str[a+1] == ' '))
 245                                 {
 246                                         log(DEBUG,"Tidied extra space out of string: %s",str);
 247                                         go_again = true;
 248                                         a++;
 249                                 }
 250                         }
 251
 252                         if (a<strlen(str)-1)
 253                         {
 254                                 if ((str[a] == ' ') && (str[a+1] == ':'))
 255                                 {
 256                                         noparse = true;
 257                                 }
 258                         }
 259
 260                         temp[t++] = str[a++];
 261                 }
 262                 temp[t] = '\0';
 263                 strncpy(str,temp,MAXBUF);
 264         }
 265 }
 266
 267 /* chop a string down to 512 characters and preserve linefeed (irc max
 268  * line length) */
 269
 270 void chop(char* str)
 271 {
 272   if (!str)
 273   {
 274         log(DEBUG,"ERROR! Null string passed to chop()!");
 275         return;
 276   }
 277   string temp = str;
 278   FOREACH_MOD OnServerRaw(temp,false);
 279   const char* str2 = temp.c_str();
 280   sprintf(str,"%s",str2);
 281
 282
 283   if (strlen(str) >= 512)
 284   {
 285         str[509] = '\r';
 286         str[510] = '\n';
 287         str[511] = '\0';
 288   }
 289 }
 290
 291
 292 std::string getservername()
 293 {
 294         return ServerName;
 295 }
 296
 297 std::string getserverdesc()
 298 {
 299         return ServerDesc;
 300 }
 301
 302 std::string getnetworkname()
 303 {
 304         return Network;
 305 }
 306
 307 std::string getadminname()
 308 {
 309         return AdminName;
 310 }
 311
 312 std::string getadminemail()
 313 {
 314         return AdminEmail;
 315 }
 316
 317 std::string getadminnick()
 318 {
 319         return AdminNick;
 320 }
 321
 322 void log(int level,char *text, ...)
 323 {
 324         char textbuffer[MAXBUF];
 325         va_list argsPtr;
 326         time_t rawtime;
 327         struct tm * timeinfo;
 328         if (level < LogLevel)
 329                 return;
 330
 331         time(&rawtime);
 332         timeinfo = localtime (&rawtime);
 333
 334         if (log_file)
 335         {
 336                 char b[MAXBUF];
 337                 va_start (argsPtr, text);
 338                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 339                 va_end(argsPtr);
 340                 strcpy(b,asctime(timeinfo));
 341                 b[strlen(b)-1] = ':';
 342                 fprintf(log_file,"%s %s\n",b,textbuffer);
 343                 if (nofork)
 344                 {
 345                         // nofork enabled? display it on terminal too
 346                         printf("%s %s\n",b,textbuffer);
 347                 }
 348         }
 349 }
 350
 351 void readfile(file_cache &F, const char* fname)
 352 {
 353   FILE* file;
 354   char linebuf[MAXBUF];
 355
 356   log(DEBUG,"readfile: loading %s",fname);
 357   F.clear();
 358   file =  fopen(fname,"r");
 359   if (file)
 360   {
 361         while (!feof(file))
 362         {
 363                 fgets(linebuf,sizeof(linebuf),file);
 364                 linebuf[strlen(linebuf)-1]='\0';
 365                 if (!strcmp(linebuf,""))
 366                 {
 367                         strcpy(linebuf,"  ");
 368                 }
 369                 if (!feof(file))
 370                 {
 371                         F.push_back(linebuf);
 372                 }
 373         }
 374         fclose(file);
 375   }
 376   else
 377   {
 378           log(DEBUG,"readfile: failed to load file: %s",fname);
 379   }
 380   log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 381 }
 382
 383 void ReadConfig(void)
 384 {
 385   char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF];
 386   ConnectClass c;
 387
 388   LoadConf(CONFIG_FILE,&config_f);
 389
 390   ConfValue("server","name",0,ServerName,&config_f);
 391   ConfValue("server","description",0,ServerDesc,&config_f);
 392   ConfValue("server","network",0,Network,&config_f);
 393   ConfValue("admin","name",0,AdminName,&config_f);
 394   ConfValue("admin","email",0,AdminEmail,&config_f);
 395   ConfValue("admin","nick",0,AdminNick,&config_f);
 396   ConfValue("files","motd",0,motd,&config_f);
 397   ConfValue("files","rules",0,rules,&config_f);
 398   ConfValue("power","diepass",0,diepass,&config_f);
 399   ConfValue("power","pause",0,pauseval,&config_f);
 400   ConfValue("power","restartpass",0,restartpass,&config_f);
 401   ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 402   ConfValue("die","value",0,DieValue,&config_f);
 403   ConfValue("options","loglevel",0,dbg,&config_f);
 404   ConfValue("options","netbuffersize",0,NB,&config_f);
 405   NetBufferSize = atoi(NB);
 406   if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 407   {
 408         log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 409         NetBufferSize = 10240;
 410   }
 411   if (!strcmp(dbg,"debug"))
 412         LogLevel = DEBUG;
 413   if (!strcmp(dbg,"verbose"))
 414         LogLevel = VERBOSE;
 415   if (!strcmp(dbg,"default"))
 416         LogLevel = DEFAULT;
 417   if (!strcmp(dbg,"sparse"))
 418         LogLevel = SPARSE;
 419   if (!strcmp(dbg,"none"))
 420         LogLevel = NONE;
 421   readfile(MOTD,motd);
 422   log(DEBUG,"Reading message of the day");
 423   readfile(RULES,rules);
 424   log(DEBUG,"Reading connect classes");
 425   Classes.clear();
 426   for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 427   {
 428         strcpy(Value,"");
 429         ConfValue("connect","allow",i,Value,&config_f);
 430         ConfValue("connect","timeout",i,timeout,&config_f);
 431         ConfValue("connect","flood",i,flood,&config_f);
 432         if (strcmp(Value,""))
 433         {
 434                 strcpy(c.host,Value);
 435                 c.type = CC_ALLOW;
 436                 strcpy(Value,"");
 437                 ConfValue("connect","password",i,Value,&config_f);
 438                 strcpy(c.pass,Value);
 439                 c.registration_timeout = 90; // default is 2 minutes
 440                 c.flood = atoi(flood);
 441                 if (atoi(timeout)>0)
 442                 {
 443                         c.registration_timeout = atoi(timeout);
 444                 }
 445                 Classes.push_back(c);
 446                 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 447         }
 448         else
 449         {
 450                 ConfValue("connect","deny",i,Value,&config_f);
 451                 strcpy(c.host,Value);
 452                 c.type = CC_DENY;
 453                 Classes.push_back(c);
 454                 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 455         }
 456
 457   }
 458 }
 459
 460 void Blocking(int s)
 461 {
 462   int flags;
 463   log(DEBUG,"Blocking: %d",s);
 464   flags = fcntl(s, F_GETFL, 0);
 465   fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
 466 }
 467
 468 void NonBlocking(int s)
 469 {
 470   int flags;
 471   log(DEBUG,"NonBlocking: %d",s);
 472   flags = fcntl(s, F_GETFL, 0);
 473   //fcntl(s, F_SETFL, O_NONBLOCK);
 474   fcntl(s, F_SETFL, flags | O_NONBLOCK);
 475 }
 476
 477
 478 int CleanAndResolve (char *resolvedHost, const char *unresolvedHost)
 479 {
 480   struct hostent *hostPtr = NULL;
 481   struct in_addr addr;
 482
 483   memset (resolvedHost, '\0',MAXBUF);
 484   if(unresolvedHost == NULL)
 485         return(ERROR);
 486   if ((inet_aton(unresolvedHost,&addr)) == 0)
 487         return(ERROR);
 488   hostPtr = gethostbyaddr ((char *)&addr.s_addr,sizeof(addr.s_addr),AF_INET);
 489   if (hostPtr != NULL)
 490         snprintf(resolvedHost,MAXBUF,"%s",hostPtr->h_name);
 491   else
 492         snprintf(resolvedHost,MAXBUF,"%s",unresolvedHost);
 493   return (TRUE);
 494 }
 495
 496 /* write formatted text to a socket, in same format as printf */
 497
 498 void Write(int sock,char *text, ...)
 499 {
 500   if (!text)
 501   {
 502         log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 503         return;
 504   }
 505   char textbuffer[MAXBUF];
 506   va_list argsPtr;
 507   char tb[MAXBUF];
 508
 509   va_start (argsPtr, text);
 510   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 511   va_end(argsPtr);
 512   sprintf(tb,"%s\r\n",textbuffer);
 513   chop(tb);
 514   if (sock != -1)
 515   {
 516         write(sock,tb,strlen(tb));
 517         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 518   }
 519 }
 520
 521 /* write a server formatted numeric response to a single socket */
 522
 523 void WriteServ(int sock, char* text, ...)
 524 {
 525   if (!text)
 526   {
 527         log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 528         return;
 529   }
 530   char textbuffer[MAXBUF],tb[MAXBUF];
 531   va_list argsPtr;
 532   va_start (argsPtr, text);
 533
 534   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 535   va_end(argsPtr);
 536   sprintf(tb,":%s %s\r\n",ServerName,textbuffer);
 537   chop(tb);
 538   if (sock != -1)
 539   {
 540         write(sock,tb,strlen(tb));
 541         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 542   }
 543 }
 544
 545 /* write text from an originating user to originating user */
 546
 547 void WriteFrom(int sock, userrec *user,char* text, ...)
 548 {
 549   if ((!text) || (!user))
 550   {
 551         log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 552         return;
 553   }
 554   char textbuffer[MAXBUF],tb[MAXBUF];
 555   va_list argsPtr;
 556   va_start (argsPtr, text);
 557
 558   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 559   va_end(argsPtr);
 560   sprintf(tb,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 561   chop(tb);
 562   if (sock != -1)
 563   {
 564         write(sock,tb,strlen(tb));
 565         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 566   }
 567 }
 568
 569 /* write text to an destination user from a source user (e.g. user privmsg) */
 570
 571 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 572 {
 573         if ((!dest) || (!data))
 574         {
 575                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 576                 return;
 577         }
 578         char textbuffer[MAXBUF],tb[MAXBUF];
 579         va_list argsPtr;
 580         va_start (argsPtr, data);
 581         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 582         va_end(argsPtr);
 583         chop(tb);
 584
 585         // if no source given send it from the server.
 586         if (!source)
 587         {
 588                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 589         }
 590         else
 591         {
 592                 WriteFrom(dest->fd,source,"%s",textbuffer);
 593         }
 594 }
 595
 596 /* write formatted text from a source user to all users on a channel
 597  * including the sender (NOT for privmsg, notice etc!) */
 598
 599 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 600 {
 601         if ((!Ptr) || (!user) || (!text))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 610         va_end(argsPtr);
 611         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 612         {
 613                 if (has_channel(i->second,Ptr))
 614                 {
 615                         WriteTo(user,i->second,"%s",textbuffer);
 616                 }
 617         }
 618 }
 619
 620 /* write formatted text from a source user to all users on a channel
 621  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 622  * users on remote servers */
 623
 624 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 625 {
 626         if ((!Ptr) || (!text))
 627         {
 628                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 629                 return;
 630         }
 631         char textbuffer[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, text);
 634         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 635         va_end(argsPtr);
 636         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 637         {
 638                 if (has_channel(i->second,Ptr))
 639                 {
 640                         if (i->second->fd != -1)
 641                         {
 642                                 if (!user)
 643                                 {
 644                                         WriteServ(i->second->fd,"%s",textbuffer);
 645                                 }
 646                                 else
 647                                 {
 648                                         WriteTo(user,i->second,"%s",textbuffer);
 649                                 }
 650                         }
 651                 }
 652         }
 653 }
 654
 655
 656 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 657 {
 658         if ((!Ptr) || (!user) || (!text))
 659         {
 660                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 661                 return;
 662         }
 663         char textbuffer[MAXBUF];
 664         va_list argsPtr;
 665         va_start (argsPtr, text);
 666         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 667         va_end(argsPtr);
 668         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 669         {
 670                 if (i->second)
 671                 {
 672                         if (has_channel(i->second,Ptr))
 673                         {
 674                                 WriteServ(i->second->fd,"%s",textbuffer);
 675                         }
 676                 }
 677         }
 678 }
 679
 680
 681 /* write formatted text from a source user to all users on a channel except
 682  * for the sender (for privmsg etc) */
 683
 684 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 685 {
 686         if ((!Ptr) || (!user) || (!text))
 687         {
 688                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 689                 return;
 690         }
 691         char textbuffer[MAXBUF];
 692         va_list argsPtr;
 693         va_start (argsPtr, text);
 694         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 695         va_end(argsPtr);
 696
 697         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 698         {
 699                 if (i->second)
 700                 {
 701                         if (has_channel(i->second,Ptr) && (user != i->second))
 702                         {
 703                                 WriteTo(user,i->second,"%s",textbuffer);
 704                         }
 705                 }
 706         }
 707 }
 708
 709 int c_count(userrec* u)
 710 {
 711         int z = 0;
 712         for (int i =0; i != MAXCHANS; i++)
 713                 if (u->chans[i].channel != NULL)
 714                         z++;
 715         return z;
 716
 717 }
 718
 719 /* return 0 or 1 depending if users u and u2 share one or more common channels
 720  * (used by QUIT, NICK etc which arent channel specific notices) */
 721
 722 int common_channels(userrec *u, userrec *u2)
 723 {
 724         int i = 0;
 725         int z = 0;
 726
 727         if ((!u) || (!u2))
 728         {
 729                 log(DEFAULT,"*** BUG *** common_channels was given an invalid parameter");
 730                 return 0;
 731         }
 732         for (int i = 0; i != MAXCHANS; i++)
 733         {
 734                 for (z = 0; z != MAXCHANS; z++)
 735                 {
 736                         if ((u->chans[i].channel != NULL) && (u2->chans[z].channel != NULL))
 737                         {
 738                                 if ((u->chans[i].channel == u2->chans[z].channel) && (u->chans[i].channel) && (u2->chans[z].channel) && (u->registered == 7) && (u2->registered == 7))
 739                                 {
 740                                         if ((c_count(u)) && (c_count(u2)))
 741                                         {
 742                                                 return 1;
 743                                         }
 744                                 }
 745                         }
 746                 }
 747         }
 748         return 0;
 749 }
 750
 751 /* write a formatted string to all users who share at least one common
 752  * channel, including the source user e.g. for use in NICK */
 753
 754 void WriteCommon(userrec *u, char* text, ...)
 755 {
 756         if (!u)
 757         {
 758                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 759                 return;
 760         }
 761
 762         if (u->registered != 7) {
 763                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 764                 return;
 765         }
 766
 767         char textbuffer[MAXBUF];
 768         va_list argsPtr;
 769         va_start (argsPtr, text);
 770         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 771         va_end(argsPtr);
 772
 773         WriteFrom(u->fd,u,"%s",textbuffer);
 774
 775         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 776         {
 777                 if (i->second)
 778                 {
 779                         if (common_channels(u,i->second) && (i->second != u))
 780                         {
 781                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 782                         }
 783                 }
 784         }
 785 }
 786
 787 /* write a formatted string to all users who share at least one common
 788  * channel, NOT including the source user e.g. for use in QUIT */
 789
 790 void WriteCommonExcept(userrec *u, char* text, ...)
 791 {
 792         if (!u)
 793         {
 794                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 795                 return;
 796         }
 797
 798         if (u->registered != 7) {
 799                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 800                 return;
 801         }
 802
 803         char textbuffer[MAXBUF];
 804         va_list argsPtr;
 805         va_start (argsPtr, text);
 806         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 807         va_end(argsPtr);
 808
 809         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 810         {
 811                 if (i->second)
 812                 {
 813                         if ((common_channels(u,i->second)) && (u != i->second))
 814                         {
 815                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 816                         }
 817                 }
 818         }
 819 }
 820
 821 void WriteOpers(char* text, ...)
 822 {
 823         if (!text)
 824         {
 825                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 826                 return;
 827         }
 828
 829         char textbuffer[MAXBUF];
 830         va_list argsPtr;
 831         va_start (argsPtr, text);
 832         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 833         va_end(argsPtr);
 834
 835         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 836         {
 837                 if (i->second)
 838                 {
 839                         if (strchr(i->second->modes,'o'))
 840                         {
 841                                 if (strchr(i->second->modes,'s'))
 842                                 {
 843                                         // send server notices to all with +s
 844                                         // (TODO: needs SNOMASKs)
 845                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 846                                 }
 847                         }
 848                 }
 849         }
 850 }
 851
 852 // returns TRUE of any users on channel C occupy server 'servername'.
 853
 854 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 855 {
 856         log(DEBUG,"ChanAnyOnThisServer");
 857         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 858         {
 859                 if (has_channel(i->second,c))
 860                 {
 861                         if (!strcasecmp(i->second->server,servername))
 862                         {
 863                                 return true;
 864                         }
 865                 }
 866         }
 867         return false;
 868 }
 869
 870 // returns true if user 'u' shares any common channels with any users on server 'servername'
 871
 872 bool CommonOnThisServer(userrec* u,char* servername)
 873 {
 874         log(DEBUG,"ChanAnyOnThisServer");
 875         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 876         {
 877                 if ((common_channels(u,i->second)) && (u != i->second))
 878                 {
 879                         if (!strcasecmp(i->second->server,servername))
 880                         {
 881                                 return true;
 882                         }
 883                 }
 884         }
 885         return false;
 886 }
 887
 888
 889
 890 bool hasumode(userrec* user, char mode)
 891 {
 892         if (user)
 893         {
 894                 return (strchr(user->modes,mode)>0);
 895         }
 896         else return false;
 897 }
 898
 899 void WriteMode(const char* modes, int flags, const char* text, ...)
 900 {
 901         if ((!text) || (!modes) || (!flags))
 902         {
 903                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
 904                 return;
 905         }
 906
 907         char textbuffer[MAXBUF];
 908         va_list argsPtr;
 909         va_start (argsPtr, text);
 910         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 911         va_end(argsPtr);
 912
 913         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 914         {
 915                 if (i->second)
 916                 {
 917                         bool send_to_user = false;
 918
 919                         if (flags == WM_AND)
 920                         {
 921                                 send_to_user = true;
 922                                 for (int n = 0; n < strlen(modes); n++)
 923                                 {
 924                                         if (!hasumode(i->second,modes[n]))
 925                                         {
 926                                                 send_to_user = false;
 927                                                 break;
 928                                         }
 929                                 }
 930                         }
 931                         else if (flags == WM_OR)
 932                         {
 933                                 send_to_user = false;
 934                                 for (int n = 0; n < strlen(modes); n++)
 935                                 {
 936                                         if (hasumode(i->second,modes[n]))
 937                                         {
 938                                                 send_to_user = true;
 939                                                 break;
 940                                         }
 941                                 }
 942                         }
 943
 944                         if (send_to_user)
 945                         {
 946                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 947                         }
 948                 }
 949         }
 950 }
 951
 952 void WriteWallOps(userrec *source, char* text, ...)
 953 {
 954         if ((!text) || (!source))
 955         {
 956                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 957                 return;
 958         }
 959
 960         int i = 0;
 961         char textbuffer[MAXBUF];
 962         va_list argsPtr;
 963         va_start (argsPtr, text);
 964         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 965         va_end(argsPtr);
 966
 967         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 968         {
 969                 if (i->second)
 970                 {
 971                         if (strchr(i->second->modes,'w'))
 972                         {
 973                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
 974                         }
 975                 }
 976         }
 977 }
 978
 979 /* convert a string to lowercase. Note following special circumstances
 980  * taken from RFC 1459. Many "official" server branches still hold to this
 981  * rule so i will too;
 982  *
 983  *  Because of IRC's scandanavian origin, the characters {}| are
 984  *  considered to be the lower case equivalents of the characters []\,
 985  *  respectively. This is a critical issue when determining the
 986  *  equivalence of two nicknames.
 987  */
 988
 989 void strlower(char *n)
 990 {
 991         if (!n)
 992         {
 993                 return;
 994         }
 995         for (int i = 0; i != strlen(n); i++)
 996         {
 997                 n[i] = tolower(n[i]);
 998                 if (n[i] == '[')
 999                         n[i] = '{';
1000                 if (n[i] == ']')
1001                         n[i] = '}';
1002                 if (n[i] == '\\')
1003                         n[i] = '|';
1004         }
1005 }
1006
1007 /* verify that a user's ident and nickname is valid */
1008
1009 int isident(const char* n)
1010 {
1011         char v[MAXBUF];
1012         if (!n)
1013
1014         {
1015                 return 0;
1016         }
1017         if (!strcmp(n,""))
1018         {
1019                 return 0;
1020         }
1021         for (int i = 0; i != strlen(n); i++)
1022         {
1023                 if ((n[i] < 33) || (n[i] > 125))
1024                 {
1025                         return 0;
1026                 }
1027                 /* can't occur ANYWHERE in an Ident! */
1028                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1029                 {
1030                         return 0;
1031                 }
1032         }
1033         return 1;
1034 }
1035
1036
1037 int isnick(const char* n)
1038 {
1039         int i = 0;
1040         char v[MAXBUF];
1041         if (!n)
1042         {
1043                 return 0;
1044         }
1045         if (!strcmp(n,""))
1046         {
1047                 return 0;
1048         }
1049         if (strlen(n) > NICKMAX-1)
1050         {
1051                 return 0;
1052         }
1053         for (int i = 0; i != strlen(n); i++)
1054         {
1055                 if ((n[i] < 33) || (n[i] > 125))
1056                 {
1057                         return 0;
1058                 }
1059                 /* can't occur ANYWHERE in a nickname! */
1060                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1061                 {
1062                         return 0;
1063                 }
1064                 /* can't occur as the first char of a nickname... */
1065                 if ((strchr("0123456789",n[i])) && (!i))
1066                 {
1067                         return 0;
1068                 }
1069         }
1070         return 1;
1071 }
1072
1073 /* Find a user record by nickname and return a pointer to it */
1074
1075 userrec* Find(string nick)
1076 {
1077         user_hash::iterator iter = clientlist.find(nick);
1078
1079         if (iter == clientlist.end())
1080                 /* Couldn't find it */
1081                 return NULL;
1082
1083         return iter->second;
1084 }
1085
1086 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
1087 {
1088         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1089         {
1090                 if (i->second)
1091                 {
1092                         if (i->second->fd == fd)
1093                         {
1094                                 i->second->bytes_out+=data_out;
1095                                 i->second->cmds_out++;
1096                         }
1097                 }
1098         }
1099 }
1100
1101
1102 /* find a channel record by channel name and return a pointer to it */
1103
1104 chanrec* FindChan(const char* chan)
1105 {
1106         if (!chan)
1107         {
1108                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1109                 return NULL;
1110         }
1111
1112         chan_hash::iterator iter = chanlist.find(chan);
1113
1114         if (iter == chanlist.end())
1115                 /* Couldn't find it */
1116                 return NULL;
1117
1118         return iter->second;
1119 }
1120
1121
1122 void purge_empty_chans(void)
1123 {
1124         int go_again = 1, purge = 0;
1125
1126         while (go_again)
1127         {
1128                 go_again = 0;
1129                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1130                 {
1131                         if (i->second) {
1132                                 if (!usercount(i->second))
1133                                 {
1134                                         /* kill the record */
1135                                         if (i != chanlist.end())
1136                                         {
1137                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1138                                                 delete i->second;
1139                                                 chanlist.erase(i);
1140                                                 go_again = 1;
1141                                                 purge++;
1142                                                 break;
1143                                         }
1144                                 }
1145                                 else
1146                                 {
1147                                         log(DEBUG,"skipped purge for %s",i->second->name);
1148                                 }
1149                         }
1150                 }
1151         }
1152         log(DEBUG,"completed channel purge, killed %d",purge);
1153 }
1154
1155 /* returns the status character for a given user on a channel, e.g. @ for op,
1156  * % for halfop etc. If the user has several modes set, the highest mode
1157  * the user has must be returned. */
1158
1159 char* cmode(userrec *user, chanrec *chan)
1160 {
1161         if ((!user) || (!chan))
1162         {
1163                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1164                 return "";
1165         }
1166
1167         int i;
1168         for (int i = 0; i != MAXCHANS; i++)
1169         {
1170                 if ((user->chans[i].channel == chan) && (chan != NULL))
1171                 {
1172                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1173                         {
1174                                 return "@";
1175                         }
1176                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1177                         {
1178                                 return "%";
1179                         }
1180                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1181                         {
1182                                 return "+";
1183                         }
1184                         return "";
1185                 }
1186         }
1187 }
1188
1189 char scratch[MAXBUF];
1190 char sparam[MAXBUF];
1191
1192 char* chanmodes(chanrec *chan)
1193 {
1194         if (!chan)
1195         {
1196                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1197                 strcpy(scratch,"");
1198                 return scratch;
1199         }
1200
1201         strcpy(scratch,"");
1202         strcpy(sparam,"");
1203         if (chan->noexternal)
1204         {
1205                 strncat(scratch,"n",MAXMODES);
1206         }
1207         if (chan->topiclock)
1208         {
1209                 strncat(scratch,"t",MAXMODES);
1210         }
1211         if (strcmp(chan->key,""))
1212         {
1213                 strncat(scratch,"k",MAXMODES);
1214         }
1215         if (chan->limit)
1216         {
1217                 strncat(scratch,"l",MAXMODES);
1218         }
1219         if (chan->inviteonly)
1220         {
1221                 strncat(scratch,"i",MAXMODES);
1222         }
1223         if (chan->moderated)
1224         {
1225                 strncat(scratch,"m",MAXMODES);
1226         }
1227         if (chan->secret)
1228         {
1229                 strncat(scratch,"s",MAXMODES);
1230         }
1231         if (chan->c_private)
1232         {
1233                 strncat(scratch,"p",MAXMODES);
1234         }
1235         if (strcmp(chan->key,""))
1236         {
1237                 strncat(sparam,chan->key,MAXBUF);
1238         }
1239         if (chan->limit)
1240         {
1241                 char foo[24];
1242                 sprintf(foo," %d",chan->limit);
1243                 strncat(sparam,foo,MAXBUF);
1244         }
1245         if (strlen(chan->custom_modes))
1246         {
1247                 strncat(scratch,chan->custom_modes,MAXMODES);
1248                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1249                 {
1250                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1251                         if (extparam != "")
1252                         {
1253                                 strncat(sparam," ",MAXBUF);
1254                                 strncat(sparam,extparam.c_str(),MAXBUF);
1255                         }
1256                 }
1257         }
1258         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1259         strncat(scratch,sparam,MAXMODES);
1260         return scratch;
1261 }
1262
1263 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1264  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1265  * highest mode the user has must be returned. */
1266
1267 int cstatus(userrec *user, chanrec *chan)
1268 {
1269         if ((!chan) || (!user))
1270         {
1271                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1272                 return 0;
1273         }
1274
1275         for (int i = 0; i != MAXCHANS; i++)
1276         {
1277                 if ((user->chans[i].channel == chan) && (chan != NULL))
1278                 {
1279                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1280                         {
1281                                 return STATUS_OP;
1282                         }
1283                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1284                         {
1285                                 return STATUS_HOP;
1286                         }
1287                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1288                         {
1289                                 return STATUS_VOICE;
1290                         }
1291                         return STATUS_NORMAL;
1292                 }
1293         }
1294 }
1295
1296
1297 /* compile a userlist of a channel into a string, each nick seperated by
1298  * spaces and op, voice etc status shown as @ and + */
1299
1300 void userlist(userrec *user,chanrec *c)
1301 {
1302         if ((!c) || (!user))
1303         {
1304                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1305                 return;
1306         }
1307
1308         sprintf(list,"353 %s = %s :", user->nick, c->name);
1309         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1310         {
1311                 if (has_channel(i->second,c))
1312                 {
1313                         if (isnick(i->second->nick))
1314                         {
1315                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1316                                 {
1317                                         /* user is +i, and source not on the channel, does not show
1318                                          * nick in NAMES list */
1319                                         continue;
1320                                 }
1321                                 strcat(list,cmode(i->second,c));
1322                                 strcat(list,i->second->nick);
1323                                 strcat(list," ");
1324                                 if (strlen(list)>(480-NICKMAX))
1325                                 {
1326                                         /* list overflowed into
1327                                          * multiple numerics */
1328                                         WriteServ(user->fd,list);
1329                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1330                                 }
1331                         }
1332                 }
1333         }
1334         /* if whats left in the list isnt empty, send it */
1335         if (list[strlen(list)-1] != ':')
1336         {
1337                 WriteServ(user->fd,list);
1338         }
1339 }
1340
1341 /* return a count of the users on a specific channel accounting for
1342  * invisible users who won't increase the count. e.g. for /LIST */
1343
1344 int usercount_i(chanrec *c)
1345 {
1346         int i = 0;
1347         int count = 0;
1348
1349         if (!c)
1350         {
1351                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1352                 return 0;
1353         }
1354
1355         strcpy(list,"");
1356         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1357         {
1358                 if (i->second)
1359                 {
1360                         if (has_channel(i->second,c))
1361                         {
1362                                 if (isnick(i->second->nick))
1363                                 {
1364                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1365                                         {
1366                                                 /* user is +i, and source not on the channel, does not show
1367                                                  * nick in NAMES list */
1368                                                 continue;
1369                                         }
1370                                         count++;
1371                                 }
1372                         }
1373                 }
1374         }
1375         log(DEBUG,"usercount_i: %s %d",c->name,count);
1376         return count;
1377 }
1378
1379
1380 int usercount(chanrec *c)
1381 {
1382         int i = 0;
1383         int count = 0;
1384
1385         if (!c)
1386         {
1387                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1388                 return 0;
1389         }
1390
1391         strcpy(list,"");
1392         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1393         {
1394                 if (i->second)
1395                 {
1396                         if (has_channel(i->second,c))
1397                         {
1398                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1399                                 {
1400                                         count++;
1401                                 }
1402                         }
1403                 }
1404         }
1405         log(DEBUG,"usercount: %s %d",c->name,count);
1406         return count;
1407 }
1408
1409
1410 /* add a channel to a user, creating the record for it if needed and linking
1411  * it to the user record */
1412
1413 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1414 {
1415         if ((!user) || (!cn))
1416         {
1417                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1418                 return 0;
1419         }
1420
1421         int i = 0;
1422         chanrec* Ptr;
1423         int created = 0;
1424         char cname[MAXBUF];
1425
1426         strncpy(cname,cn,MAXBUF);
1427
1428         // we MUST declare this wherever we use FOREACH_RESULT
1429         int MOD_RESULT = 0;
1430
1431         if (strlen(cname) > CHANMAX-1)
1432         {
1433                 cname[CHANMAX-1] = '\0';
1434         }
1435
1436         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1437
1438         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1439         {
1440                 return NULL; // already on the channel!
1441         }
1442
1443
1444         if (!FindChan(cname))
1445         {
1446                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1447                 if (MOD_RESULT) {
1448                         return NULL;
1449                 }
1450
1451                 /* create a new one */
1452                 log(DEBUG,"add_channel: creating: %s",cname);
1453                 {
1454                         chanlist[cname] = new chanrec();
1455
1456                         strcpy(chanlist[cname]->name, cname);
1457                         chanlist[cname]->topiclock = 1;
1458                         chanlist[cname]->noexternal = 1;
1459                         chanlist[cname]->created = time(NULL);
1460                         strcpy(chanlist[cname]->topic, "");
1461                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1462                         chanlist[cname]->topicset = 0;
1463                         Ptr = chanlist[cname];
1464                         log(DEBUG,"add_channel: created: %s",cname);
1465                         /* set created to 2 to indicate user
1466                          * is the first in the channel
1467                          * and should be given ops */
1468                         created = 2;
1469                 }
1470         }
1471         else
1472         {
1473                 /* channel exists, just fish out a pointer to its struct */
1474                 Ptr = FindChan(cname);
1475                 if (Ptr)
1476                 {
1477                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1478
1479                         // the override flag allows us to bypass channel modes
1480                         // and bans (used by servers)
1481                         if (!override)
1482                         {
1483                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1484                                 if (MOD_RESULT) {
1485                                         return NULL;
1486                                 }
1487
1488                                 if (strcmp(Ptr->key,""))
1489                                 {
1490                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1491                                         if (!key)
1492                                         {
1493                                                 log(DEBUG,"add_channel: no key given in JOIN");
1494                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1495                                                 return NULL;
1496                                         }
1497                                         else
1498                                         {
1499                                                 log(DEBUG,"key at %p is %s",key,key);
1500                                                 if (strcasecmp(key,Ptr->key))
1501                                                 {
1502                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1503                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1504                                                         return NULL;
1505                                                 }
1506                                         }
1507                                 }
1508                                 log(DEBUG,"add_channel: no key");
1509
1510                                 if (Ptr->inviteonly)
1511                                 {
1512                                         log(DEBUG,"add_channel: channel is +i");
1513                                         if (user->IsInvited(Ptr->name))
1514                                         {
1515                                                 /* user was invited to channel */
1516                                                 /* there may be an optional channel NOTICE here */
1517                                         }
1518                                         else
1519                                         {
1520                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1521                                                 return NULL;
1522                                         }
1523                                 }
1524                                 log(DEBUG,"add_channel: channel is not +i");
1525
1526                                 if (Ptr->limit)
1527                                 {
1528                                         if (usercount(Ptr) == Ptr->limit)
1529                                         {
1530                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1531                                                 return NULL;
1532                                         }
1533                                 }
1534
1535                                 log(DEBUG,"add_channel: about to walk banlist");
1536
1537                                 /* check user against the channel banlist */
1538                                 if (Ptr)
1539                                 {
1540                                         if (Ptr->bans.size())
1541                                         {
1542                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1543                                                 {
1544                                                         if (match(user->GetFullHost(),i->data))
1545                                                         {
1546                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1547                                                                 return NULL;
1548                                                         }
1549                                                 }
1550                                         }
1551                                 }
1552
1553                                 log(DEBUG,"add_channel: bans checked");
1554
1555
1556                                 if ((Ptr) && (user))
1557                                 {
1558                                         user->RemoveInvite(Ptr->name);
1559                                 }
1560
1561                                 log(DEBUG,"add_channel: invites removed");
1562
1563                         }
1564                         else
1565                         {
1566                                 log(DEBUG,"Overridden checks");
1567                         }
1568
1569
1570                 }
1571                 created = 1;
1572         }
1573
1574         log(DEBUG,"Passed channel checks");
1575
1576         for (int i =0; i != MAXCHANS; i++)
1577         {
1578                 log(DEBUG,"Check location %d",i);
1579                 if (user->chans[i].channel == NULL)
1580                 {
1581                         log(DEBUG,"Adding into their channel list at location %d",i);
1582
1583                         if (created == 2)
1584                         {
1585                                 /* first user in is given ops */
1586                                 user->chans[i].uc_modes = UCMODE_OP;
1587                         }
1588                         else
1589                         {
1590                                 user->chans[i].uc_modes = 0;
1591                         }
1592                         user->chans[i].channel = Ptr;
1593                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1594
1595                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1596                         {
1597                                 // use the stamdard J token with no privilages.
1598                                 char buffer[MAXBUF];
1599                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1600                                 for (int j = 0; j < 255; j++)
1601                                 {
1602                                         if (servers[j] != NULL)
1603                                         {
1604                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1605                                                 log(DEBUG,"Sent J token");
1606                                         }
1607                                 }
1608                         }
1609
1610                         log(DEBUG,"Sent JOIN to client");
1611
1612                         if (Ptr->topicset)
1613                         {
1614                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1615                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1616                         }
1617                         userlist(user,Ptr);
1618                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1619                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1620                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1621                         FOREACH_MOD OnUserJoin(user,Ptr);
1622                         return Ptr;
1623                 }
1624         }
1625         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1626         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1627         return NULL;
1628 }
1629
1630 /* remove a channel from a users record, and remove the record from memory
1631  * if the channel has become empty */
1632
1633 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1634 {
1635         if ((!user) || (!cname))
1636         {
1637                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1638                 return NULL;
1639         }
1640
1641         chanrec* Ptr;
1642         int created = 0;
1643
1644         if ((!cname) || (!user))
1645         {
1646                 return NULL;
1647         }
1648
1649         Ptr = FindChan(cname);
1650
1651         if (!Ptr)
1652         {
1653                 return NULL;
1654         }
1655
1656         FOREACH_MOD OnUserPart(user,Ptr);
1657         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1658
1659         for (int i =0; i != MAXCHANS; i++)
1660         {
1661                 /* zap it from the channel list of the user */
1662                 if (user->chans[i].channel == Ptr)
1663                 {
1664                         if (reason)
1665                         {
1666                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1667
1668                                 if (!local)
1669                                 {
1670                                         char buffer[MAXBUF];
1671                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1672                                         for (int j = 0; j < 255; j++)
1673                                         {
1674                                                 if (servers[j] != NULL)
1675                                                 {
1676                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1677                                                         log(DEBUG,"Sent L token (with reason)");
1678                                                 }
1679                                         }
1680                                 }
1681
1682
1683                         }
1684                         else
1685                         {
1686                                 if (!local)
1687                                 {
1688                                         char buffer[MAXBUF];
1689                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1690                                         for (int j = 0; j < 255; j++)
1691                                         {
1692                                                 if (servers[j] != NULL)
1693                                                 {
1694                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
1695                                                         log(DEBUG,"Sent L token (no reason)");
1696                                                 }
1697                                         }
1698                                 }
1699
1700                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1701                         }
1702                         user->chans[i].uc_modes = 0;
1703                         user->chans[i].channel = NULL;
1704                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1705                         break;
1706                 }
1707         }
1708
1709         /* if there are no users left on the channel */
1710         if (!usercount(Ptr))
1711         {
1712                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1713
1714                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1715
1716                 /* kill the record */
1717                 if (iter != chanlist.end())
1718                 {
1719                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1720                         delete iter->second;
1721                         chanlist.erase(iter);
1722                 }
1723         }
1724 }
1725
1726
1727 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1728 {
1729         if ((!src) || (!user) || (!Ptr) || (!reason))
1730         {
1731                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1732                 return;
1733         }
1734
1735         int i = 0;
1736         int created = 0;
1737
1738         if ((!Ptr) || (!user) || (!src))
1739         {
1740                 return;
1741         }
1742
1743         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1744
1745         if (!has_channel(user,Ptr))
1746         {
1747                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1748                 return;
1749         }
1750         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1751         {
1752                 if (cstatus(src,Ptr) == STATUS_HOP)
1753                 {
1754                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1755                 }
1756                 else
1757                 {
1758                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1759                 }
1760
1761                 return;
1762         }
1763
1764         for (int i =0; i != MAXCHANS; i++)
1765         {
1766                 /* zap it from the channel list of the user */
1767                 if (user->chans[i].channel)
1768                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1769                 {
1770                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1771                         user->chans[i].uc_modes = 0;
1772                         user->chans[i].channel = NULL;
1773                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1774                         break;
1775                 }
1776         }
1777
1778         /* if there are no users left on the channel */
1779         if (!usercount(Ptr))
1780         {
1781                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1782
1783                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1784
1785                 /* kill the record */
1786                 if (iter != chanlist.end())
1787                 {
1788                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1789                         delete iter->second;
1790                         chanlist.erase(iter);
1791                 }
1792         }
1793 }
1794
1795
1796 /* returns 1 if user u has channel c in their record, 0 if not */
1797
1798 int has_channel(userrec *u, chanrec *c)
1799 {
1800         if ((!u) || (!c))
1801         {
1802                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1803                 return 0;
1804         }
1805         for (int i =0; i != MAXCHANS; i++)
1806         {
1807                 if (u->chans[i].channel == c)
1808                 {
1809                         return 1;
1810                 }
1811         }
1812         return 0;
1813 }
1814
1815 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1816 {
1817         userrec *d;
1818         int i;
1819
1820         if ((!user) || (!dest) || (!chan))
1821         {
1822                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1823                 return 0;
1824         }
1825         if (status < STATUS_OP)
1826         {
1827                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1828                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1829                 return 0;
1830         }
1831         else
1832         {
1833                 if (!isnick(dest))
1834                 {
1835                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1836                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1837                         return 0;
1838                 }
1839                 d = Find(dest);
1840                 if (!d)
1841                 {
1842                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1843                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1844                         return 0;
1845                 }
1846                 else
1847                 {
1848                         for (int i = 0; i != MAXCHANS; i++)
1849                         {
1850                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1851                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1852                                 {
1853                                         if (d->chans[i].uc_modes & UCMODE_OP)
1854                                         {
1855                                                 /* mode already set on user, dont allow multiple */
1856                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1857                                                 return 0;
1858                                         }
1859                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1860                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1861                                         return 1;
1862                                 }
1863                         }
1864                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1865                 }
1866         }
1867         return 1;
1868 }
1869
1870 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1871 {
1872         userrec *d;
1873         int i;
1874
1875         if ((!user) || (!dest) || (!chan))
1876         {
1877                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1878                 return 0;
1879         }
1880         if (status != STATUS_OP)
1881         {
1882                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1883                 return 0;
1884         }
1885         else
1886         {
1887                 d = Find(dest);
1888                 if (!isnick(dest))
1889                 {
1890                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1891                         return 0;
1892                 }
1893                 if (!d)
1894                 {
1895                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1896                         return 0;
1897                 }
1898                 else
1899                 {
1900                         for (int i = 0; i != MAXCHANS; i++)
1901                         {
1902                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1903                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1904                                 {
1905                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1906                                         {
1907                                                 /* mode already set on user, dont allow multiple */
1908                                                 return 0;
1909                                         }
1910                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
1911                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
1912                                         return 1;
1913                                 }
1914                         }
1915                 }
1916         }
1917         return 1;
1918 }
1919
1920 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
1921 {
1922         userrec *d;
1923         int i;
1924
1925         if ((!user) || (!dest) || (!chan))
1926         {
1927                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
1928                 return 0;
1929         }
1930         if (status < STATUS_HOP)
1931         {
1932                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
1933                 return 0;
1934         }
1935         else
1936         {
1937                 d = Find(dest);
1938                 if (!isnick(dest))
1939                 {
1940                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1941                         return 0;
1942                 }
1943                 if (!d)
1944                 {
1945                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1946                         return 0;
1947                 }
1948                 else
1949                 {
1950                         for (int i = 0; i != MAXCHANS; i++)
1951                         {
1952                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1953                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1954                                 {
1955                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
1956                                         {
1957                                                 /* mode already set on user, dont allow multiple */
1958                                                 return 0;
1959                                         }
1960                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
1961                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
1962                                         return 1;
1963                                 }
1964                         }
1965                 }
1966         }
1967         return 1;
1968 }
1969
1970 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
1971 {
1972         userrec *d;
1973         int i;
1974
1975         if ((!user) || (!dest) || (!chan))
1976         {
1977                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
1978                 return 0;
1979         }
1980         if (status < STATUS_OP)
1981         {
1982                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
1983                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1984                 return 0;
1985         }
1986         else
1987         {
1988                 d = Find(dest);
1989                 if (!isnick(dest))
1990                 {
1991                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
1992                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1993                         return 0;
1994                 }
1995                 if (!d)
1996                 {
1997                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
1998                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1999                         return 0;
2000                 }
2001                 else
2002                 {
2003                         for (int i = 0; i != MAXCHANS; i++)
2004                         {
2005                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2006                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2007                                 {
2008                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2009                                         {
2010                                                 /* mode already set on user, dont allow multiple */
2011                                                 return 0;
2012                                         }
2013                                         d->chans[i].uc_modes ^= UCMODE_OP;
2014                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2015                                         return 1;
2016                                 }
2017                         }
2018                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
2019                 }
2020         }
2021         return 1;
2022 }
2023
2024 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2025 {
2026         userrec *d;
2027         int i;
2028
2029         if ((!user) || (!dest) || (!chan))
2030         {
2031                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2032                 return 0;
2033         }
2034         if (status != STATUS_OP)
2035         {
2036                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2037                 return 0;
2038         }
2039         else
2040         {
2041                 d = Find(dest);
2042                 if (!isnick(dest))
2043                 {
2044                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2045                         return 0;
2046                 }
2047                 if (!d)
2048                 {
2049                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2050                         return 0;
2051                 }
2052                 else
2053                 {
2054                         for (int i = 0; i != MAXCHANS; i++)
2055                         {
2056                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2057                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2058                                 {
2059                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2060                                         {
2061                                                 /* mode already set on user, dont allow multiple */
2062                                                 return 0;
2063                                         }
2064                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2065                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2066                                         return 1;
2067                                 }
2068                         }
2069                 }
2070         }
2071         return 1;
2072 }
2073
2074 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2075 {
2076         userrec *d;
2077         int i;
2078
2079         if ((!user) || (!dest) || (!chan))
2080         {
2081                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2082                 return 0;
2083         }
2084         if (status < STATUS_HOP)
2085         {
2086                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2087                 return 0;
2088         }
2089         else
2090         {
2091                 d = Find(dest);
2092                 if (!isnick(dest))
2093                 {
2094                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2095                         return 0;
2096                 }
2097                 if (!d)
2098                 {
2099                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2100                         return 0;
2101                 }
2102                 else
2103                 {
2104                         for (int i = 0; i != MAXCHANS; i++)
2105                         {
2106                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2107                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2108                                 {
2109                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2110                                         {
2111                                                 /* mode already set on user, dont allow multiple */
2112                                                 return 0;
2113                                         }
2114                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2115                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2116                                         return 1;
2117                                 }
2118                         }
2119                 }
2120         }
2121         return 1;
2122 }
2123
2124 void TidyBan(char *ban)
2125 {
2126         if (!ban) {
2127                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2128                 return;
2129         }
2130
2131         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2132
2133         strcpy(temp,ban);
2134
2135         char* pos_of_pling = strchr(temp,'!');
2136         char* pos_of_at = strchr(temp,'@');
2137
2138         pos_of_pling[0] = '\0';
2139         pos_of_at[0] = '\0';
2140         pos_of_pling++;
2141         pos_of_at++;
2142
2143         strncpy(NICK,temp,NICKMAX);
2144         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2145         strncpy(HOST,pos_of_at,160);
2146
2147         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2148 }
2149
2150 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2151 {
2152         if ((!user) || (!dest) || (!chan)) {
2153                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2154                 return 0;
2155         }
2156
2157         BanItem b;
2158         if ((!user) || (!dest) || (!chan))
2159                 return 0;
2160         if (strchr(dest,'!')==0)
2161                 return 0;
2162         if (strchr(dest,'@')==0)
2163                 return 0;
2164         for (int i = 0; i < strlen(dest); i++)
2165                 if (dest[i] < 32)
2166                         return 0;
2167         for (int i = 0; i < strlen(dest); i++)
2168                 if (dest[i] > 126)
2169                         return 0;
2170         int c = 0;
2171         for (int i = 0; i < strlen(dest); i++)
2172                 if (dest[i] == '!')
2173                         c++;
2174         if (c>1)
2175                 return 0;
2176         c = 0;
2177         for (int i = 0; i < strlen(dest); i++)
2178                 if (dest[i] == '@')
2179                         c++;
2180         if (c>1)
2181                 return 0;
2182         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2183
2184         TidyBan(dest);
2185         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2186         {
2187                 if (!strcasecmp(i->data,dest))
2188                 {
2189                         // dont allow a user to set the same ban twice
2190                         return 0;
2191                 }
2192         }
2193
2194         b.set_time = time(NULL);
2195         strncpy(b.data,dest,MAXBUF);
2196         strncpy(b.set_by,user->nick,NICKMAX);
2197         chan->bans.push_back(b);
2198         return 1;
2199 }
2200
2201 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2202 {
2203         if ((!user) || (!dest) || (!chan)) {
2204                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2205                 return 0;
2206         }
2207
2208         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2209         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2210         {
2211                 if (!strcasecmp(i->data,dest))
2212                 {
2213                         chan->bans.erase(i);
2214                         return 1;
2215                 }
2216         }
2217         return 0;
2218 }
2219
2220 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2221 {
2222         if (!parameters) {
2223                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2224                 return;
2225         }
2226
2227         char modelist[MAXBUF];
2228         char outlist[MAXBUF];
2229         char outstr[MAXBUF];
2230         char outpars[32][MAXBUF];
2231         int param = 2;
2232         int pc = 0;
2233         int ptr = 0;
2234         int mdir = 1;
2235         int r = 0;
2236         bool k_set = false, l_set = false;
2237
2238         if (pcnt < 2)
2239         {
2240                 return;
2241         }
2242
2243         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2244
2245         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2246                                         /* parameters[2] onwards are parameters for
2247                                          * modes that require them :) */
2248         strcpy(outlist,"+");
2249         mdir = 1;
2250
2251         log(DEBUG,"process_modes: modelist: %s",modelist);
2252
2253         for (ptr = 0; ptr < strlen(modelist); ptr++)
2254         {
2255                 r = 0;
2256
2257                 {
2258                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2259                         char modechar = modelist[ptr];
2260                         switch (modelist[ptr])
2261                         {
2262                                 case '-':
2263                                         if (mdir != 0)
2264                                         {
2265                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2266                                                 {
2267                                                         outlist[strlen(outlist)-1] = '-';
2268                                                 }
2269                                                 else
2270                                                 {
2271                                                         strcat(outlist,"-");
2272                                                 }
2273                                         }
2274                                         mdir = 0;
2275
2276                                 break;
2277
2278                                 case '+':
2279                                         if (mdir != 1)
2280                                         {
2281                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2282                                                 {
2283                                                         outlist[strlen(outlist)-1] = '+';
2284                                                 }
2285                                                 else
2286                                                 {
2287                                                         strcat(outlist,"+");
2288                                                 }
2289                                         }
2290                                         mdir = 1;
2291                                 break;
2292
2293                                 case 'o':
2294                                         log(DEBUG,"Ops");
2295                                         if ((param >= pcnt)) break;
2296                                         log(DEBUG,"Enough parameters left");
2297                                         if (mdir == 1)
2298                                         {
2299                                                 log(DEBUG,"calling give_ops");
2300                                                 r = give_ops(user,parameters[param++],chan,status);
2301                                         }
2302                                         else
2303                                         {
2304                                                 log(DEBUG,"calling take_ops");
2305                                                 r = take_ops(user,parameters[param++],chan,status);
2306                                         }
2307                                         if (r)
2308                                         {
2309                                                 strcat(outlist,"o");
2310                                                 strcpy(outpars[pc++],parameters[param-1]);
2311                                         }
2312                                 break;
2313
2314                                 case 'h':
2315                                         if ((param >= pcnt)) break;
2316                                         if (mdir == 1)
2317                                         {
2318                                                 r = give_hops(user,parameters[param++],chan,status);
2319                                         }
2320                                         else
2321                                         {
2322                                                 r = take_hops(user,parameters[param++],chan,status);
2323                                         }
2324                                         if (r)
2325                                         {
2326                                                 strcat(outlist,"h");
2327                                                 strcpy(outpars[pc++],parameters[param-1]);
2328                                         }
2329                                 break;
2330
2331
2332                                 case 'v':
2333                                         if ((param >= pcnt)) break;
2334                                         if (mdir == 1)
2335                                         {
2336                                                 r = give_voice(user,parameters[param++],chan,status);
2337                                         }
2338                                         else
2339                                         {
2340                                                 r = take_voice(user,parameters[param++],chan,status);
2341                                         }
2342                                         if (r)
2343                                         {
2344                                                 strcat(outlist,"v");
2345                                                 strcpy(outpars[pc++],parameters[param-1]);
2346                                         }
2347                                 break;
2348
2349                                 case 'b':
2350                                         if ((param >= pcnt)) break;
2351                                         if (mdir == 1)
2352                                         {
2353                                                 r = add_ban(user,parameters[param++],chan,status);
2354                                         }
2355                                         else
2356                                         {
2357                                                 r = take_ban(user,parameters[param++],chan,status);
2358                                         }
2359                                         if (r)
2360                                         {
2361                                                 strcat(outlist,"b");
2362                                                 strcpy(outpars[pc++],parameters[param-1]);
2363                                         }
2364                                 break;
2365
2366
2367                                 case 'k':
2368                                         if ((param >= pcnt))
2369                                                 break;
2370
2371                                         if (mdir == 1)
2372                                         {
2373                                                 if (k_set)
2374                                                         break;
2375
2376                                                 if (!strcmp(chan->key,""))
2377                                                 {
2378                                                         strcat(outlist,"k");
2379                                                         char key[MAXBUF];
2380                                                         strcpy(key,parameters[param++]);
2381                                                         if (strlen(key)>32) {
2382                                                                 key[31] = '\0';
2383                                                         }
2384                                                         strcpy(outpars[pc++],key);
2385                                                         strcpy(chan->key,key);
2386                                                         k_set = true;
2387                                                 }
2388                                         }
2389                                         else
2390                                         {
2391                                                 /* checks on -k are case sensitive and only accurate to the
2392                                                    first 32 characters */
2393                                                 char key[MAXBUF];
2394                                                 strcpy(key,parameters[param++]);
2395                                                 if (strlen(key)>32) {
2396                                                         key[31] = '\0';
2397                                                 }
2398                                                 /* only allow -k if correct key given */
2399                                                 if (!strcmp(chan->key,key))
2400                                                 {
2401                                                         strcat(outlist,"k");
2402                                                         strcpy(chan->key,"");
2403                                                         strcpy(outpars[pc++],key);
2404                                                 }
2405                                         }
2406                                 break;
2407
2408                                 case 'l':
2409                                         if (mdir == 0)
2410                                         {
2411                                                 if (chan->limit)
2412                                                 {
2413                                                         strcat(outlist,"l");
2414                                                         chan->limit = 0;
2415                                                 }
2416                                         }
2417
2418                                         if ((param >= pcnt)) break;
2419                                         if (mdir == 1)
2420                                         {
2421                                                 if (l_set)
2422                                                         break;
2423
2424                                                 bool invalid = false;
2425                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2426                                                 {
2427                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2428                                                         {
2429                                                                 invalid = true;
2430                                                         }
2431                                                 }
2432                                                 if (atoi(parameters[param]) < 1)
2433                                                 {
2434                                                         invalid = true;
2435                                                 }
2436
2437                                                 if (invalid)
2438                                                         break;
2439
2440                                                 chan->limit = atoi(parameters[param]);
2441                                                 if (chan->limit)
2442                                                 {
2443                                                         strcat(outlist,"l");
2444                                                         strcpy(outpars[pc++],parameters[param++]);
2445                                                         l_set = true;
2446                                                 }
2447                                         }
2448                                 break;
2449
2450                                 case 'i':
2451                                         if (chan->inviteonly != mdir)
2452                                         {
2453                                                 strcat(outlist,"i");
2454                                         }
2455                                         chan->inviteonly = mdir;
2456                                 break;
2457
2458                                 case 't':
2459                                         if (chan->topiclock != mdir)
2460                                         {
2461                                                 strcat(outlist,"t");
2462                                         }
2463                                         chan->topiclock = mdir;
2464                                 break;
2465
2466                                 case 'n':
2467                                         if (chan->noexternal != mdir)
2468                                         {
2469                                                 strcat(outlist,"n");
2470                                         }
2471                                         chan->noexternal = mdir;
2472                                 break;
2473
2474                                 case 'm':
2475                                         if (chan->moderated != mdir)
2476                                         {
2477                                                 strcat(outlist,"m");
2478                                         }
2479                                         chan->moderated = mdir;
2480                                 break;
2481
2482                                 case 's':
2483                                         if (chan->secret != mdir)
2484                                         {
2485                                                 strcat(outlist,"s");
2486                                                 if (chan->c_private)
2487                                                 {
2488                                                         chan->c_private = 0;
2489                                                         if (mdir)
2490                                                         {
2491                                                                 strcat(outlist,"-p+");
2492                                                         }
2493                                                         else
2494                                                         {
2495                                                                 strcat(outlist,"+p-");
2496                                                         }
2497                                                 }
2498                                         }
2499                                         chan->secret = mdir;
2500                                 break;
2501
2502                                 case 'p':
2503                                         if (chan->c_private != mdir)
2504                                         {
2505                                                 strcat(outlist,"p");
2506                                                 if (chan->secret)
2507                                                 {
2508                                                         chan->secret = 0;
2509                                                         if (mdir)
2510                                                         {
2511                                                                 strcat(outlist,"-s+");
2512                                                         }
2513                                                         else
2514                                                         {
2515                                                                 strcat(outlist,"+s-");
2516                                                         }
2517                                                 }
2518                                         }
2519                                         chan->c_private = mdir;
2520                                 break;
2521
2522                                 default:
2523                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2524                                         string_list p;
2525                                         p.clear();
2526                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2527                                         {
2528                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2529                                                 break;
2530                                         }
2531                                         if (ModeDefined(modechar,MT_CHANNEL))
2532                                         {
2533                                                 log(DEBUG,"A module has claimed this mode");
2534                                                 if (param<pcnt)
2535                                                 {
2536                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2537                                                         {
2538                                                                 p.push_back(parameters[param]);
2539                                                         }
2540                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2541                                                         {
2542                                                                 p.push_back(parameters[param]);
2543                                                         }
2544                                                 }
2545                                                 bool handled = false;
2546                                                 if (param>=pcnt)
2547                                                 {
2548                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2549                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2550                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2551                                                         {
2552                                                                 handled = true;
2553                                                                 param++;
2554                                                         }
2555                                                 }
2556                                                 for (int i = 0; i <= MODCOUNT; i++)
2557                                                 {
2558                                                         if (!handled)
2559                                                         {
2560                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2561                                                                 {
2562                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2563                                                                         char app[] = {modechar, 0};
2564                                                                         if (ptr>0)
2565                                                                         {
2566                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2567                                                                                 {
2568                                                                                         strcat(outlist, app);
2569                                                                                 }
2570                                                                                 else if (!strchr(outlist,modechar))
2571                                                                                 {
2572                                                                                         strcat(outlist, app);
2573                                                                                 }
2574                                                                         }
2575                                                                         chan->SetCustomMode(modechar,mdir);
2576                                                                         // include parameters in output if mode has them
2577                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2578                                                                         {
2579                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2580                                                                                 strcpy(outpars[pc++],parameters[param++]);
2581                                                                         }
2582                                                                         // break, because only one module can handle the mode.
2583                                                                         handled = true;
2584                                                                 }
2585                                                         }
2586                                                 }
2587                                         }
2588                                 break;
2589
2590                         }
2591                 }
2592         }
2593
2594         /* this ensures only the *valid* modes are sent out onto the network */
2595         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2596         {
2597                 outlist[strlen(outlist)-1] = '\0';
2598         }
2599         if (strcmp(outlist,""))
2600         {
2601                 strcpy(outstr,outlist);
2602                 for (ptr = 0; ptr < pc; ptr++)
2603                 {
2604                         strcat(outstr," ");
2605                         strcat(outstr,outpars[ptr]);
2606                 }
2607                 if (local)
2608                 {
2609                         log(DEBUG,"Local mode change");
2610                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2611                 }
2612                 else
2613                 {
2614                         if (servermode)
2615                         {
2616                                 if (!silent)
2617                                 {
2618                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2619                                         // M token for a usermode must go to all servers
2620                                         char buffer[MAXBUF];
2621                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
2622                                         for (int j = 0; j < 255; j++)
2623                                         {
2624                                                 if (servers[j] != NULL)
2625                                                 {
2626                                                         if (strcmp(servers[j]->name,ServerName))
2627                                                         {
2628                                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2629                                                                 log(DEBUG,"Sent M token");
2630                                                         }
2631                                                 }
2632                                         }
2633                                 }
2634
2635                         }
2636                         else
2637                         {
2638                                 if (!silent)
2639                                 {
2640                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2641                                         // M token for a usermode must go to all servers
2642                                         char buffer[MAXBUF];
2643                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2644                                         for (int j = 0; j < 255; j++)
2645                                         {
2646                                                 if (servers[j] != NULL)
2647                                                 {
2648                                                         if (strcmp(servers[j]->name,ServerName))
2649                                                         {
2650                                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2651                                                                 log(DEBUG,"Sent m token");
2652                                                         }
2653                                                 }
2654                                         }
2655                                 }
2656                         }
2657                 }
2658         }
2659 }
2660
2661 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2662
2663 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2664 {
2665         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2666         // RFC1459 specified modes
2667         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2668         {
2669                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2670                 return true;
2671         }
2672
2673         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2674         if ((strchr(sourcemodes,'o')) && (!adding))
2675         {
2676                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2677                 return true;
2678         }
2679         else if (umode == 'o')
2680         {
2681                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2682                 return false;
2683         }
2684
2685         // process any module-defined modes that need oper
2686         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2687         {
2688                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2689                 return true;
2690         }
2691         else
2692         if (ModeDefined(umode,MT_CLIENT))
2693         {
2694                 // process any module-defined modes that don't need oper
2695                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2696                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2697                 {
2698                         // no, this mode needs oper, and this user 'aint got what it takes!
2699                         return false;
2700                 }
2701                 return true;
2702         }
2703
2704         // anything else - return false.
2705         log(DEBUG,"umode %c not known by any ruleset",umode);
2706         return false;
2707 }
2708
2709 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2710 {
2711         userrec* s2;
2712         bool faked = false;
2713         if (!source)
2714         {
2715                 s2 = new userrec;
2716                 strncpy(s2->nick,ServerName,NICKMAX);
2717                 strcpy(s2->modes,"o");
2718                 s2->fd = -1;
2719                 source = s2;
2720                 faked = true;
2721         }
2722         string_list p;
2723         p.clear();
2724         if (ModeDefined(umode,MT_CLIENT))
2725         {
2726                 for (int i = 0; i <= MODCOUNT; i++)
2727                 {
2728                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2729                         {
2730                                 log(DEBUG,"Module claims umode %c",umode);
2731                                 return true;
2732                         }
2733                 }
2734                 log(DEBUG,"No module claims umode %c",umode);
2735                 if (faked)
2736                 {
2737                         delete s2;
2738                         source = NULL;
2739                 }
2740                 return false;
2741         }
2742         else
2743         {
2744                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2745                 if (faked)
2746                 {
2747                         delete s2;
2748                         source = NULL;
2749                 }
2750                 return false;
2751         }
2752 }
2753
2754 void handle_mode(char **parameters, int pcnt, userrec *user)
2755 {
2756         chanrec* Ptr;
2757         userrec* dest;
2758         int can_change,i;
2759         int direction = 1;
2760         char outpars[MAXBUF];
2761
2762         dest = Find(parameters[0]);
2763
2764         if (!user)
2765         {
2766                 return;
2767         }
2768
2769         if ((dest) && (pcnt == 1))
2770         {
2771                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2772                 return;
2773         }
2774
2775         if ((dest) && (pcnt > 1))
2776         {
2777                 char dmodes[MAXBUF];
2778                 strncpy(dmodes,dest->modes,MAXBUF);
2779                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2780
2781                 can_change = 0;
2782                 if (user != dest)
2783                 {
2784                         if (strchr(user->modes,'o'))
2785                         {
2786                                 can_change = 1;
2787                         }
2788                 }
2789                 else
2790                 {
2791                         can_change = 1;
2792                 }
2793                 if (!can_change)
2794                 {
2795                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2796                         return;
2797                 }
2798
2799                 strcpy(outpars,"+");
2800                 direction = 1;
2801
2802                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2803                         return;
2804
2805                 for (int i = 0; i < strlen(parameters[1]); i++)
2806                 {
2807                         if (parameters[1][i] == '+')
2808                         {
2809                                 if (direction != 1)
2810                                 {
2811                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2812                                         {
2813                                                 outpars[strlen(outpars)-1] = '+';
2814                                         }
2815                                         else
2816                                         {
2817                                                 strcat(outpars,"+");
2818                                         }
2819                                 }
2820                                 direction = 1;
2821                         }
2822                         else
2823                         if (parameters[1][i] == '-')
2824                         {
2825                                 if (direction != 0)
2826                                 {
2827                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2828                                         {
2829                                                 outpars[strlen(outpars)-1] = '-';
2830                                         }
2831                                         else
2832                                         {
2833                                                 strcat(outpars,"-");
2834                                         }
2835                                 }
2836                                 direction = 0;
2837                         }
2838                         else
2839                         {
2840                                 can_change = 0;
2841                                 if (strchr(user->modes,'o'))
2842                                 {
2843                                         can_change = 1;
2844                                 }
2845                                 else
2846                                 {
2847                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2848                                         {
2849                                                 can_change = 1;
2850                                         }
2851                                 }
2852                                 if (can_change)
2853                                 {
2854                                         if (direction == 1)
2855                                         {
2856                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2857                                                 {
2858                                                         char umode = parameters[1][i];
2859                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2860                                                         {
2861                                                                 dmodes[strlen(dmodes)+1]='\0';
2862                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2863                                                                 outpars[strlen(outpars)+1]='\0';
2864                                                                 outpars[strlen(outpars)] = parameters[1][i];
2865                                                         }
2866                                                 }
2867                                         }
2868                                         else
2869                                         {
2870                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2871                                                 {
2872                                                         char umode = parameters[1][i];
2873                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2874                                                         {
2875                                                                 int q = 0;
2876                                                                 char temp[MAXBUF];
2877                                                                 char moo[MAXBUF];
2878
2879                                                                 outpars[strlen(outpars)+1]='\0';
2880                                                                 outpars[strlen(outpars)] = parameters[1][i];
2881
2882                                                                 strcpy(temp,"");
2883                                                                 for (q = 0; q < strlen(dmodes); q++)
2884                                                                 {
2885                                                                         if (dmodes[q] != parameters[1][i])
2886                                                                         {
2887                                                                                 moo[0] = dmodes[q];
2888                                                                                 moo[1] = '\0';
2889                                                                                 strcat(temp,moo);
2890                                                                         }
2891                                                                 }
2892                                                                 strcpy(dmodes,temp);
2893                                                         }
2894                                                 }
2895                                         }
2896                                 }
2897                         }
2898                 }
2899                 if (strlen(outpars))
2900                 {
2901                         char b[MAXBUF];
2902                         strcpy(b,"");
2903                         int z = 0;
2904                         int i = 0;
2905                         while (i < strlen (outpars))
2906                         {
2907                                 b[z++] = outpars[i++];
2908                                 b[z] = '\0';
2909                                 if (i<strlen(outpars)-1)
2910                                 {
2911                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2912                                         {
2913                                                 // someones playing silly buggers and trying
2914                                                 // to put a +- or -+ into the line...
2915                                                 i++;
2916                                         }
2917                                 }
2918                                 if (i == strlen(outpars)-1)
2919                                 {
2920                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2921                                         {
2922                                                 i++;
2923                                         }
2924                                 }
2925                         }
2926
2927                         z = strlen(b)-1;
2928                         if ((b[z] == '-') || (b[z] == '+'))
2929                                 b[z] == '\0';
2930
2931                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2932                                 return;
2933
2934                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2935
2936                         // M token for a usermode must go to all servers
2937                         char buffer[MAXBUF];
2938                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2939                         for (int j = 0; j < 255; j++)
2940                         {
2941                                 if (servers[j] != NULL)
2942                                 {
2943                                         if (strcmp(servers[j]->name,ServerName))
2944                                         {
2945                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2946                                                 log(DEBUG,"Sent m token");
2947                                         }
2948                                 }
2949                         }
2950
2951                         if (strlen(dmodes)>MAXMODES)
2952                         {
2953                                 dmodes[MAXMODES-1] = '\0';
2954                         }
2955                         log(DEBUG,"Stripped mode line");
2956                         log(DEBUG,"Line dest is now %s",dmodes);
2957                         strncpy(dest->modes,dmodes,MAXMODES);
2958
2959                 }
2960
2961                 return;
2962         }
2963
2964         Ptr = FindChan(parameters[0]);
2965         if (Ptr)
2966         {
2967                 if (pcnt == 1)
2968                 {
2969                         /* just /modes #channel */
2970                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2971                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2972                         return;
2973                 }
2974                 else
2975                 if (pcnt == 2)
2976                 {
2977                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2978                         {
2979
2980                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2981                                 {
2982                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2983                                 }
2984                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2985                                 return;
2986                         }
2987                 }
2988
2989                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2990                 {
2991                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
2992                         return;
2993                 }
2994
2995                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
2996         }
2997         else
2998         {
2999                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3000         }
3001 }
3002
3003
3004
3005
3006 void server_mode(char **parameters, int pcnt, userrec *user)
3007 {
3008         chanrec* Ptr;
3009         userrec* dest;
3010         int can_change,i;
3011         int direction = 1;
3012         char outpars[MAXBUF];
3013
3014         dest = Find(parameters[0]);
3015
3016         // fix: ChroNiCk found this - we cant use this as debug if its null!
3017         if (dest)
3018         {
3019                 log(DEBUG,"server_mode on %s",dest->nick);
3020         }
3021
3022         if ((dest) && (pcnt > 1))
3023         {
3024                 log(DEBUG,"params > 1");
3025
3026                 char dmodes[MAXBUF];
3027                 strncpy(dmodes,dest->modes,MAXBUF);
3028
3029                 strcpy(outpars,"+");
3030                 direction = 1;
3031
3032                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3033                         return;
3034
3035                 for (int i = 0; i < strlen(parameters[1]); i++)
3036                 {
3037                         if (parameters[1][i] == '+')
3038                         {
3039                                 if (direction != 1)
3040                                 {
3041                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3042                                         {
3043                                                 outpars[strlen(outpars)-1] = '+';
3044                                         }
3045                                         else
3046                                         {
3047                                                 strcat(outpars,"+");
3048                                         }
3049                                 }
3050                                 direction = 1;
3051                         }
3052                         else
3053                         if (parameters[1][i] == '-')
3054                         {
3055                                 if (direction != 0)
3056                                 {
3057                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3058                                         {
3059                                                 outpars[strlen(outpars)-1] = '-';
3060                                         }
3061                                         else
3062                                         {
3063                                                 strcat(outpars,"-");
3064                                         }
3065                                 }
3066                                 direction = 0;
3067                         }
3068                         else
3069                         {
3070                                 log(DEBUG,"begin mode processing entry");
3071                                 can_change = 1;
3072                                 if (can_change)
3073                                 {
3074                                         if (direction == 1)
3075                                         {
3076                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3077                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3078                                                 {
3079                                                         char umode = parameters[1][i];
3080                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3081                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3082                                                         {
3083                                                                 dmodes[strlen(dmodes)+1]='\0';
3084                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3085                                                                 outpars[strlen(outpars)+1]='\0';
3086                                                                 outpars[strlen(outpars)] = parameters[1][i];
3087                                                         }
3088                                                 }
3089                                         }
3090                                         else
3091                                         {
3092                                                 // can only remove a mode they already have
3093                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3094                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
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                                                                 int q = 0;
3101                                                                 char temp[MAXBUF];
3102                                                                 char moo[MAXBUF];
3103
3104                                                                 outpars[strlen(outpars)+1]='\0';
3105                                                                 outpars[strlen(outpars)] = parameters[1][i];
3106
3107                                                                 strcpy(temp,"");
3108                                                                 for (q = 0; q < strlen(dmodes); q++)
3109                                                                 {
3110                                                                         if (dmodes[q] != parameters[1][i])
3111                                                                         {
3112                                                                                 moo[0] = dmodes[q];
3113                                                                                 moo[1] = '\0';
3114                                                                                 strcat(temp,moo);
3115                                                                         }
3116                                                                 }
3117                                                                 strcpy(dmodes,temp);
3118                                                         }
3119                                                 }
3120                                         }
3121                                 }
3122                         }
3123                 }
3124                 if (strlen(outpars))
3125                 {
3126                         char b[MAXBUF];
3127                         strcpy(b,"");
3128                         int z = 0;
3129                         int i = 0;
3130                         while (i < strlen (outpars))
3131                         {
3132                                 b[z++] = outpars[i++];
3133                                 b[z] = '\0';
3134                                 if (i<strlen(outpars)-1)
3135                                 {
3136                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3137                                         {
3138                                                 // someones playing silly buggers and trying
3139                                                 // to put a +- or -+ into the line...
3140                                                 i++;
3141                                         }
3142                                 }
3143                                 if (i == strlen(outpars)-1)
3144                                 {
3145                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3146                                         {
3147                                                 i++;
3148                                         }
3149                                 }
3150                         }
3151
3152                         z = strlen(b)-1;
3153                         if ((b[z] == '-') || (b[z] == '+'))
3154                                 b[z] == '\0';
3155
3156                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3157                                 return;
3158
3159                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3160
3161                         // M token for a usermode must go to all servers
3162                         char buffer[MAXBUF];
3163                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3164                         for (int j = 0; j < 255; j++)
3165                         {
3166                                 if (servers[j] != NULL)
3167                                 {
3168                                         if (strcmp(servers[j]->name,ServerName))
3169                                         {
3170                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3171                                                 log(DEBUG,"Sent m token");
3172                                         }
3173                                 }
3174                         }
3175
3176                         if (strlen(dmodes)>MAXMODES)
3177                         {
3178                                 dmodes[MAXMODES-1] = '\0';
3179                         }
3180                         log(DEBUG,"Stripped mode line");
3181                         log(DEBUG,"Line dest is now %s",dmodes);
3182                         strncpy(dest->modes,dmodes,MAXMODES);
3183
3184                 }
3185
3186                 return;
3187         }
3188
3189         Ptr = FindChan(parameters[0]);
3190         if (Ptr)
3191         {
3192                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3193         }
3194         else
3195         {
3196                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3197         }
3198 }
3199
3200
3201
3202 void merge_mode(char **parameters, int pcnt)
3203 {
3204         chanrec* Ptr;
3205         userrec* dest;
3206         int can_change,i;
3207         int direction = 1;
3208         char outpars[MAXBUF];
3209
3210         dest = Find(parameters[0]);
3211
3212         // fix: ChroNiCk found this - we cant use this as debug if its null!
3213         if (dest)
3214         {
3215                 log(DEBUG,"merge_mode on %s",dest->nick);
3216         }
3217
3218         if ((dest) && (pcnt > 1))
3219         {
3220                 log(DEBUG,"params > 1");
3221
3222                 char dmodes[MAXBUF];
3223                 strncpy(dmodes,dest->modes,MAXBUF);
3224
3225                 strcpy(outpars,"+");
3226                 direction = 1;
3227
3228                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3229                         return;
3230
3231                 for (int i = 0; i < strlen(parameters[1]); i++)
3232                 {
3233                         if (parameters[1][i] == '+')
3234                         {
3235                                 if (direction != 1)
3236                                 {
3237                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3238                                         {
3239                                                 outpars[strlen(outpars)-1] = '+';
3240                                         }
3241                                         else
3242                                         {
3243                                                 strcat(outpars,"+");
3244                                         }
3245                                 }
3246                                 direction = 1;
3247                         }
3248                         else
3249                         if (parameters[1][i] == '-')
3250                         {
3251                                 if (direction != 0)
3252                                 {
3253                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3254                                         {
3255                                                 outpars[strlen(outpars)-1] = '-';
3256                                         }
3257                                         else
3258                                         {
3259                                                 strcat(outpars,"-");
3260                                         }
3261                                 }
3262                                 direction = 0;
3263                         }
3264                         else
3265                         {
3266                                 log(DEBUG,"begin mode processing entry");
3267                                 can_change = 1;
3268                                 if (can_change)
3269                                 {
3270                                         if (direction == 1)
3271                                         {
3272                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3273                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3274                                                 {
3275                                                         char umode = parameters[1][i];
3276                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3277                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3278                                                         {
3279                                                                 dmodes[strlen(dmodes)+1]='\0';
3280                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3281                                                                 outpars[strlen(outpars)+1]='\0';
3282                                                                 outpars[strlen(outpars)] = parameters[1][i];
3283                                                         }
3284                                                 }
3285                                         }
3286                                         else
3287                                         {
3288                                                 // can only remove a mode they already have
3289                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3290                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
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                                                                 int q = 0;
3297                                                                 char temp[MAXBUF];
3298                                                                 char moo[MAXBUF];
3299
3300                                                                 outpars[strlen(outpars)+1]='\0';
3301                                                                 outpars[strlen(outpars)] = parameters[1][i];
3302
3303                                                                 strcpy(temp,"");
3304                                                                 for (q = 0; q < strlen(dmodes); q++)
3305                                                                 {
3306                                                                         if (dmodes[q] != parameters[1][i])
3307                                                                         {
3308                                                                                 moo[0] = dmodes[q];
3309                                                                                 moo[1] = '\0';
3310                                                                                 strcat(temp,moo);
3311                                                                         }
3312                                                                 }
3313                                                                 strcpy(dmodes,temp);
3314                                                         }
3315                                                 }
3316                                         }
3317                                 }
3318                         }
3319                 }
3320                 if (strlen(outpars))
3321                 {
3322                         char b[MAXBUF];
3323                         strcpy(b,"");
3324                         int z = 0;
3325                         int i = 0;
3326                         while (i < strlen (outpars))
3327                         {
3328                                 b[z++] = outpars[i++];
3329                                 b[z] = '\0';
3330                                 if (i<strlen(outpars)-1)
3331                                 {
3332                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3333                                         {
3334                                                 // someones playing silly buggers and trying
3335                                                 // to put a +- or -+ into the line...
3336                                                 i++;
3337                                         }
3338                                 }
3339                                 if (i == strlen(outpars)-1)
3340                                 {
3341                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3342                                         {
3343                                                 i++;
3344                                         }
3345                                 }
3346                         }
3347
3348                         z = strlen(b)-1;
3349                         if ((b[z] == '-') || (b[z] == '+'))
3350                                 b[z] == '\0';
3351
3352                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3353                                 return;
3354
3355                         if (strlen(dmodes)>MAXMODES)
3356                         {
3357                                 dmodes[MAXMODES-1] = '\0';
3358                         }
3359                         log(DEBUG,"Stripped mode line");
3360                         log(DEBUG,"Line dest is now %s",dmodes);
3361                         strncpy(dest->modes,dmodes,MAXMODES);
3362
3363                 }
3364
3365                 return;
3366         }
3367
3368         Ptr = FindChan(parameters[0]);
3369         if (Ptr)
3370         {
3371                 userrec s2;
3372                 strncpy(s2.nick,ServerName,NICKMAX);
3373                 strcpy(s2.modes,"o");
3374                 s2.fd = -1;
3375                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3376         }
3377 }
3378
3379
3380 void merge_mode2(char **parameters, int pcnt, userrec* user)
3381 {
3382         chanrec* Ptr;
3383         userrec* dest;
3384         int can_change,i;
3385         int direction = 1;
3386         char outpars[MAXBUF];
3387
3388         dest = Find(parameters[0]);
3389
3390         // fix: ChroNiCk found this - we cant use this as debug if its null!
3391         if (dest)
3392         {
3393                 log(DEBUG,"merge_mode on %s",dest->nick);
3394         }
3395
3396         if ((dest) && (pcnt > 1))
3397         {
3398                 log(DEBUG,"params > 1");
3399
3400                 char dmodes[MAXBUF];
3401                 strncpy(dmodes,dest->modes,MAXBUF);
3402
3403                 strcpy(outpars,"+");
3404                 direction = 1;
3405
3406                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3407                         return;
3408
3409                 for (int i = 0; i < strlen(parameters[1]); i++)
3410                 {
3411                         if (parameters[1][i] == '+')
3412                         {
3413                                 if (direction != 1)
3414                                 {
3415                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3416                                         {
3417                                                 outpars[strlen(outpars)-1] = '+';
3418                                         }
3419                                         else
3420                                         {
3421                                                 strcat(outpars,"+");
3422                                         }
3423                                 }
3424                                 direction = 1;
3425                         }
3426                         else
3427                         if (parameters[1][i] == '-')
3428                         {
3429                                 if (direction != 0)
3430                                 {
3431                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3432                                         {
3433                                                 outpars[strlen(outpars)-1] = '-';
3434                                         }
3435                                         else
3436                                         {
3437                                                 strcat(outpars,"-");
3438                                         }
3439                                 }
3440                                 direction = 0;
3441                         }
3442                         else
3443                         {
3444                                 log(DEBUG,"begin mode processing entry");
3445                                 can_change = 1;
3446                                 if (can_change)
3447                                 {
3448                                         if (direction == 1)
3449                                         {
3450                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3451                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3452                                                 {
3453                                                         char umode = parameters[1][i];
3454                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3455                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3456                                                         {
3457                                                                 dmodes[strlen(dmodes)+1]='\0';
3458                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3459                                                                 outpars[strlen(outpars)+1]='\0';
3460                                                                 outpars[strlen(outpars)] = parameters[1][i];
3461                                                         }
3462                                                 }
3463                                         }
3464                                         else
3465                                         {
3466                                                 // can only remove a mode they already have
3467                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3468                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
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                                                                 int q = 0;
3475                                                                 char temp[MAXBUF];
3476                                                                 char moo[MAXBUF];
3477
3478                                                                 outpars[strlen(outpars)+1]='\0';
3479                                                                 outpars[strlen(outpars)] = parameters[1][i];
3480
3481                                                                 strcpy(temp,"");
3482                                                                 for (q = 0; q < strlen(dmodes); q++)
3483                                                                 {
3484                                                                         if (dmodes[q] != parameters[1][i])
3485                                                                         {
3486                                                                                 moo[0] = dmodes[q];
3487                                                                                 moo[1] = '\0';
3488                                                                                 strcat(temp,moo);
3489                                                                         }
3490                                                                 }
3491                                                                 strcpy(dmodes,temp);
3492                                                         }
3493                                                 }
3494                                         }
3495                                 }
3496                         }
3497                 }
3498                 if (strlen(outpars))
3499                 {
3500                         char b[MAXBUF];
3501                         strcpy(b,"");
3502                         int z = 0;
3503                         int i = 0;
3504                         while (i < strlen (outpars))
3505                         {
3506                                 b[z++] = outpars[i++];
3507                                 b[z] = '\0';
3508                                 if (i<strlen(outpars)-1)
3509                                 {
3510                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3511                                         {
3512                                                 // someones playing silly buggers and trying
3513                                                 // to put a +- or -+ into the line...
3514                                                 i++;
3515                                         }
3516                                 }
3517                                 if (i == strlen(outpars)-1)
3518                                 {
3519                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3520                                         {
3521                                                 i++;
3522                                         }
3523                                 }
3524                         }
3525
3526                         z = strlen(b)-1;
3527                         if ((b[z] == '-') || (b[z] == '+'))
3528                                 b[z] == '\0';
3529
3530                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3531                                 return;
3532
3533                         WriteTo(user,dest,"MODE :%s",b);
3534
3535                         if (strlen(dmodes)>MAXMODES)
3536                         {
3537                                 dmodes[MAXMODES-1] = '\0';
3538                         }
3539                         log(DEBUG,"Stripped mode line");
3540                         log(DEBUG,"Line dest is now %s",dmodes);
3541                         strncpy(dest->modes,dmodes,MAXMODES);
3542
3543                 }
3544
3545                 return;
3546         }
3547
3548         Ptr = FindChan(parameters[0]);
3549         if (Ptr)
3550         {
3551                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3552                 {
3553                         return;
3554                 }
3555
3556                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3557         }
3558 }
3559
3560
3561
3562 /* This function pokes and hacks at a parameter list like the following:
3563  *
3564  * PART #winbot, #darkgalaxy :m00!
3565  *
3566  * to turn it into a series of individual calls like this:
3567  *
3568  * PART #winbot :m00!
3569  * PART #darkgalaxy :m00!
3570  *
3571  * The seperate calls are sent to a callback function provided by the caller
3572  * (the caller will usually call itself recursively). The callback function
3573  * must be a command handler. Calling this function on a line with no list causes
3574  * no action to be taken. You must provide a starting and ending parameter number
3575  * where the range of the list can be found, useful if you have a terminating
3576  * parameter as above which is actually not part of the list, or parameters
3577  * before the actual list as well. This code is used by many functions which
3578  * can function as "one to list" (see the RFC) */
3579
3580 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3581 {
3582         char plist[MAXBUF];
3583         char *param;
3584         char *pars[32];
3585         char blog[32][MAXBUF];
3586         char blog2[32][MAXBUF];
3587         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3588         char keystr[MAXBUF];
3589         char moo[MAXBUF];
3590
3591         for (int i = 0; i <32; i++)
3592                 strcpy(blog[i],"");
3593
3594         for (int i = 0; i <32; i++)
3595                 strcpy(blog2[i],"");
3596
3597         strcpy(moo,"");
3598         for (int i = 0; i <10; i++)
3599         {
3600                 if (!parameters[i])
3601                 {
3602                         parameters[i] = moo;
3603                 }
3604         }
3605         if (joins)
3606         {
3607                 if (pcnt > 1) /* we have a key to copy */
3608                 {
3609                         strcpy(keystr,parameters[1]);
3610                 }
3611         }
3612
3613         if (!parameters[start])
3614         {
3615                 return 0;
3616         }
3617         if (!strchr(parameters[start],','))
3618         {
3619                 return 0;
3620         }
3621         strcpy(plist,"");
3622         for (int i = start; i <= end; i++)
3623         {
3624                 if (parameters[i])
3625                 {
3626                         strcat(plist,parameters[i]);
3627                 }
3628         }
3629
3630         j = 0;
3631         param = plist;
3632
3633         t = strlen(plist);
3634         for (int i = 0; i < t; i++)
3635         {
3636                 if (plist[i] == ',')
3637                 {
3638                         plist[i] = '\0';
3639                         strcpy(blog[j++],param);
3640                         param = plist+i+1;
3641                         if (j>20)
3642                         {
3643                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3644                                 return 1;
3645                         }
3646                 }
3647         }
3648         strcpy(blog[j++],param);
3649         total = j;
3650
3651         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3652         {
3653                 strcat(keystr,",");
3654         }
3655
3656         if ((joins) && (keystr))
3657         {
3658                 if (strchr(keystr,','))
3659                 {
3660                         j = 0;
3661                         param = keystr;
3662                         t2 = strlen(keystr);
3663                         for (int i = 0; i < t2; i++)
3664                         {
3665                                 if (keystr[i] == ',')
3666                                 {
3667                                         keystr[i] = '\0';
3668                                         strcpy(blog2[j++],param);
3669                                         param = keystr+i+1;
3670                                 }
3671                         }
3672                         strcpy(blog2[j++],param);
3673                         total2 = j;
3674                 }
3675         }
3676
3677         for (j = 0; j < total; j++)
3678         {
3679                 if (blog[j])
3680                 {
3681                         pars[0] = blog[j];
3682                 }
3683                 for (q = end; q < pcnt-1; q++)
3684                 {
3685                         if (parameters[q+1])
3686                         {
3687                                 pars[q-end+1] = parameters[q+1];
3688                         }
3689                 }
3690                 if ((joins) && (parameters[1]))
3691                 {
3692                         if (pcnt > 1)
3693                         {
3694                                 pars[1] = blog2[j];
3695                         }
3696                         else
3697                         {
3698                                 pars[1] = NULL;
3699                         }
3700                 }
3701                 /* repeatedly call the function with the hacked parameter list */
3702                 if ((joins) && (pcnt > 1))
3703                 {
3704                         if (pars[1])
3705                         {
3706                                 // pars[1] already set up and containing key from blog2[j]
3707                                 fn(pars,2,u);
3708                         }
3709                         else
3710                         {
3711                                 pars[1] = parameters[1];
3712                                 fn(pars,2,u);
3713                         }
3714                 }
3715                 else
3716                 {
3717                         fn(pars,pcnt-(end-start),u);
3718                 }
3719         }
3720
3721         return 1;
3722 }
3723
3724
3725 void handle_join(char **parameters, int pcnt, userrec *user)
3726 {
3727         chanrec* Ptr;
3728         int i = 0;
3729
3730         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3731                 return;
3732         if (parameters[0][0] == '#')
3733         {
3734                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3735         }
3736 }
3737
3738
3739 void handle_part(char **parameters, int pcnt, userrec *user)
3740 {
3741         chanrec* Ptr;
3742
3743         if (pcnt > 1)
3744         {
3745                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3746                         return;
3747                 del_channel(user,parameters[0],parameters[1],false);
3748         }
3749         else
3750         {
3751                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3752                         return;
3753                 del_channel(user,parameters[0],NULL,false);
3754         }
3755 }
3756
3757 void handle_kick(char **parameters, int pcnt, userrec *user)
3758 {
3759         chanrec* Ptr = FindChan(parameters[0]);
3760         userrec* u   = Find(parameters[1]);
3761
3762         if ((!u) || (!Ptr))
3763         {
3764                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3765                 return;
3766         }
3767
3768         if (!has_channel(u,Ptr))
3769         {
3770                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3771                 return;
3772         }
3773
3774         char reason[MAXBUF];
3775
3776         if (pcnt > 2)
3777         {
3778                 strncpy(reason,parameters[2],MAXBUF);
3779                 if (strlen(reason)>MAXKICK)
3780                 {
3781                         reason[MAXKICK-1] = '\0';
3782                 }
3783
3784                 kick_channel(user,u,Ptr,reason);
3785         }
3786         else
3787         {
3788                 strcpy(reason,user->nick);
3789                 kick_channel(user,u,Ptr,reason);
3790         }
3791
3792         // this must be propogated so that channel membership is kept in step network-wide
3793
3794         char buffer[MAXBUF];
3795         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3796         for (int j = 0; j < 255; j++)
3797         {
3798                 if (servers[j] != NULL)
3799                 {
3800                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3801                         log(DEBUG,"Sent k token");
3802                 }
3803         }
3804
3805 }
3806
3807
3808 void handle_die(char **parameters, int pcnt, userrec *user)
3809 {
3810         log(DEBUG,"die: %s",user->nick);
3811         if (!strcmp(parameters[0],diepass))
3812         {
3813                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3814                 sleep(DieDelay);
3815                 Exit(ERROR);
3816         }
3817         else
3818         {
3819                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3820         }
3821 }
3822
3823 void handle_restart(char **parameters, int pcnt, userrec *user)
3824 {
3825         log(DEBUG,"restart: %s",user->nick);
3826         if (!strcmp(parameters[0],restartpass))
3827         {
3828                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3829                 sleep(DieDelay);
3830                 Exit(ERROR);
3831                 /* Will finish this later when i can be arsed :) */
3832         }
3833         else
3834         {
3835                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3836         }
3837 }
3838
3839
3840 void kill_link(userrec *user,const char* r)
3841 {
3842         user_hash::iterator iter = clientlist.find(user->nick);
3843
3844         char reason[MAXBUF];
3845
3846         strncpy(reason,r,MAXBUF);
3847
3848         if (strlen(reason)>MAXQUIT)
3849         {
3850                 reason[MAXQUIT-1] = '\0';
3851         }
3852
3853         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3854         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3855         log(DEBUG,"closing fd %d",user->fd);
3856
3857         /* bugfix, cant close() a nonblocking socket (sux!) */
3858         if (user->registered == 7) {
3859                 FOREACH_MOD OnUserQuit(user);
3860                 WriteCommonExcept(user,"QUIT :%s",reason);
3861
3862                 // Q token must go to ALL servers!!!
3863                 char buffer[MAXBUF];
3864                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3865                 for (int j = 0; j < 255; j++)
3866                 {
3867                         if (servers[j] != NULL)
3868                         {
3869                                 if (strcmp(servers[j]->name,ServerName))
3870                                 {
3871                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3872                                         log(DEBUG,"Sent Q token");
3873                                 }
3874                         }
3875                 }
3876         }
3877
3878         /* push the socket on a stack of sockets due to be closed at the next opportunity
3879          * 'Client exited' is an exception to this as it means the client side has already
3880          * closed the socket, we don't need to do it.
3881          */
3882         fd_reap.push_back(user->fd);
3883
3884         bool do_purge = false;
3885
3886         if (user->registered == 7) {
3887                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3888                 AddWhoWas(user);
3889         }
3890
3891         if (iter != clientlist.end())
3892         {
3893                 log(DEBUG,"deleting user hash value %d",iter->second);
3894                 if ((iter->second) && (user->registered == 7)) {
3895                         delete iter->second;
3896                 }
3897                 clientlist.erase(iter);
3898         }
3899
3900         if (user->registered == 7) {
3901                 purge_empty_chans();
3902         }
3903 }
3904
3905
3906 void handle_kill(char **parameters, int pcnt, userrec *user)
3907 {
3908         userrec *u = Find(parameters[0]);
3909         char killreason[MAXBUF];
3910
3911         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3912         if (u)
3913         {
3914                 WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3915                 // :Brain!brain@NetAdmin.chatspike.net KILL [Brain] :homer!NetAdmin.chatspike.net!Brain (test kill)
3916                 WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3917                 sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3918                 kill_link(u,killreason);
3919         }
3920         else
3921         {
3922                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3923         }
3924 }
3925
3926 void handle_summon(char **parameters, int pcnt, userrec *user)
3927 {
3928         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3929 }
3930
3931 void handle_users(char **parameters, int pcnt, userrec *user)
3932 {
3933         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3934 }
3935
3936
3937 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3938
3939 char* Passwd(userrec *user)
3940 {
3941         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3942         {
3943                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3944                 {
3945                         return i->pass;
3946                 }
3947         }
3948         return "";
3949 }
3950
3951 bool IsDenied(userrec *user)
3952 {
3953         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3954         {
3955                 if (match(user->host,i->host) && (i->type == CC_DENY))
3956                 {
3957                         return true;
3958                 }
3959         }
3960         return false;
3961 }
3962
3963
3964
3965 void handle_pass(char **parameters, int pcnt, userrec *user)
3966 {
3967         // Check to make sure they havnt registered -- Fix by FCS
3968         if (user->registered == 7)
3969         {
3970                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
3971                 return;
3972         }
3973         if (!strcasecmp(parameters[0],Passwd(user)))
3974         {
3975                 user->haspassed = true;
3976         }
3977 }
3978
3979 void handle_invite(char **parameters, int pcnt, userrec *user)
3980 {
3981         userrec* u = Find(parameters[0]);
3982         chanrec* c = FindChan(parameters[1]);
3983
3984         if ((!c) || (!u))
3985         {
3986                 if (!c)
3987                 {
3988                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3989                 }
3990                 else
3991                 {
3992                         if (c->inviteonly)
3993                         {
3994                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
3995                         }
3996                 }
3997
3998                 return;
3999         }
4000
4001         if (c->inviteonly)
4002         {
4003                 if (cstatus(user,c) < STATUS_HOP)
4004                 {
4005                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
4006                         return;
4007                 }
4008         }
4009         if (has_channel(u,c))
4010         {
4011                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4012                 return;
4013         }
4014         if (!has_channel(user,c))
4015         {
4016                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4017                 return;
4018         }
4019         u->InviteTo(c->name);
4020         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4021         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4022
4023         // i token must go to ALL servers!!!
4024         char buffer[MAXBUF];
4025         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
4026         for (int j = 0; j < 255; j++)
4027         {
4028                 if (servers[j] != NULL)
4029                 {
4030                         if (strcmp(servers[j]->name,ServerName))
4031                         {
4032                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4033                                 log(DEBUG,"Sent i token");
4034                         }
4035                 }
4036         }
4037 }
4038
4039 void handle_topic(char **parameters, int pcnt, userrec *user)
4040 {
4041         chanrec* Ptr;
4042
4043         if (pcnt == 1)
4044         {
4045                 if (strlen(parameters[0]) <= CHANMAX)
4046                 {
4047                         Ptr = FindChan(parameters[0]);
4048                         if (Ptr)
4049                         {
4050                                 if (Ptr->topicset)
4051                                 {
4052                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4053                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4054                                 }
4055                                 else
4056                                 {
4057                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4058                                 }
4059                         }
4060                         else
4061                         {
4062                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4063                         }
4064                 }
4065                 return;
4066         }
4067         else if (pcnt>1)
4068         {
4069                 if (strlen(parameters[0]) <= CHANMAX)
4070                 {
4071                         Ptr = FindChan(parameters[0]);
4072                         if (Ptr)
4073                         {
4074                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4075                                 {
4076                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4077                                         return;
4078                                 }
4079
4080                                 char topic[MAXBUF];
4081                                 strncpy(topic,parameters[1],MAXBUF);
4082                                 if (strlen(topic)>MAXTOPIC)
4083                                 {
4084                                         topic[MAXTOPIC-1] = '\0';
4085                                 }
4086
4087                                 strcpy(Ptr->topic,topic);
4088                                 strcpy(Ptr->setby,user->nick);
4089                                 Ptr->topicset = time(NULL);
4090                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4091
4092                                 // t token must go to ALL servers!!!
4093                                 char buffer[MAXBUF];
4094                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
4095                                 for (int j = 0; j < 255; j++)
4096                                 {
4097                                         if (servers[j] != NULL)
4098                                         {
4099                                                 if (strcmp(servers[j]->name,ServerName))
4100                                                 {
4101                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4102                                                         log(DEBUG,"Sent t token");
4103                                                 }
4104                                         }
4105                                 }
4106                         }
4107                         else
4108                         {
4109                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4110                         }
4111                 }
4112         }
4113 }
4114
4115 /* sends out an error notice to all connected clients (not to be used
4116  * lightly!) */
4117
4118 void send_error(char *s)
4119 {
4120         log(DEBUG,"send_error: %s",s);
4121         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4122         {
4123                 if (isnick(i->second->nick))
4124                 {
4125                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4126                 }
4127                 else
4128                 {
4129                         // fix - unregistered connections receive ERROR, not NOTICE
4130                         Write(i->second->fd,"ERROR :%s",s);
4131                 }
4132         }
4133 }
4134
4135 void Error(int status)
4136 {
4137         signal (SIGALRM, SIG_IGN);
4138         signal (SIGPIPE, SIG_IGN);
4139         signal (SIGTERM, SIG_IGN);
4140         signal (SIGABRT, SIG_IGN);
4141         signal (SIGSEGV, SIG_IGN);
4142         signal (SIGURG, SIG_IGN);
4143         signal (SIGKILL, SIG_IGN);
4144         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4145         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4146         exit(status);
4147 }
4148
4149
4150 int main (int argc, char *argv[])
4151 {
4152         Start();
4153         log(DEBUG,"*** InspIRCd starting up!");
4154         if (!FileExists(CONFIG_FILE))
4155         {
4156                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4157                 log(DEBUG,"main: no config");
4158                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4159                 Exit(ERROR);
4160         }
4161         if (argc > 1) {
4162                 if (!strcmp(argv[1],"-nofork")) {
4163                         nofork = true;
4164                 }
4165         }
4166         if (InspIRCd() == ERROR)
4167         {
4168                 log(DEBUG,"main: daemon function bailed");
4169                 printf("ERROR: could not initialise. Shutting down.\n");
4170                 Exit(ERROR);
4171         }
4172         Exit(TRUE);
4173         return 0;
4174 }
4175
4176 template<typename T> inline string ConvToStr(const T &in)
4177 {
4178         stringstream tmp;
4179         if (!(tmp << in)) return string();
4180         return tmp.str();
4181 }
4182
4183 /* re-allocates a nick in the user_hash after they change nicknames,
4184  * returns a pointer to the new user as it may have moved */
4185
4186 userrec* ReHashNick(char* Old, char* New)
4187 {
4188         user_hash::iterator newnick;
4189         user_hash::iterator oldnick = clientlist.find(Old);
4190
4191         log(DEBUG,"ReHashNick: %s %s",Old,New);
4192
4193         if (!strcasecmp(Old,New))
4194         {
4195                 log(DEBUG,"old nick is new nick, skipping");
4196                 return oldnick->second;
4197         }
4198
4199         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4200
4201         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4202
4203         clientlist[New] = new userrec();
4204         clientlist[New] = oldnick->second;
4205         /*delete oldnick->second; */
4206         clientlist.erase(oldnick);
4207
4208         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4209
4210         return clientlist[New];
4211 }
4212
4213 /* adds or updates an entry in the whowas list */
4214 void AddWhoWas(userrec* u)
4215 {
4216         user_hash::iterator iter = whowas.find(u->nick);
4217         userrec *a = new userrec();
4218         strcpy(a->nick,u->nick);
4219         strcpy(a->ident,u->ident);
4220         strcpy(a->dhost,u->dhost);
4221         strcpy(a->host,u->host);
4222         strcpy(a->fullname,u->fullname);
4223         strcpy(a->server,u->server);
4224         a->signon = u->signon;
4225
4226         /* MAX_WHOWAS:   max number of /WHOWAS items
4227          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4228          *               can be replaced by a newer one
4229          */
4230
4231         if (iter == whowas.end())
4232         {
4233                 if (whowas.size() == WHOWAS_MAX)
4234                 {
4235                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4236                         {
4237                                 // 3600 seconds in an hour ;)
4238                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4239                                 {
4240                                         delete i->second;
4241                                         i->second = a;
4242                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4243                                         return;
4244                                 }
4245                         }
4246                 }
4247                 else
4248                 {
4249                         log(DEBUG,"added fresh WHOWAS entry");
4250                         whowas[a->nick] = a;
4251                 }
4252         }
4253         else
4254         {
4255                 log(DEBUG,"updated WHOWAS entry");
4256                 delete iter->second;
4257                 iter->second = a;
4258         }
4259 }
4260
4261
4262 /* add a client connection to the sockets list */
4263 void AddClient(int socket, char* host, int port, bool iscached)
4264 {
4265         int i;
4266         int blocking = 1;
4267         char resolved[MAXBUF];
4268         string tempnick;
4269         char tn2[MAXBUF];
4270         user_hash::iterator iter;
4271
4272         tempnick = ConvToStr(socket) + "-unknown";
4273         sprintf(tn2,"%d-unknown",socket);
4274
4275         iter = clientlist.find(tempnick);
4276
4277         if (iter != clientlist.end()) return;
4278
4279         /*
4280          * It is OK to access the value here this way since we know
4281          * it exists, we just created it above.
4282          *
4283          * At NO other time should you access a value in a map or a
4284          * hash_map this way.
4285          */
4286         clientlist[tempnick] = new userrec();
4287
4288         NonBlocking(socket);
4289         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4290
4291         clientlist[tempnick]->fd = socket;
4292         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4293         strncpy(clientlist[tempnick]->host, host,160);
4294         strncpy(clientlist[tempnick]->dhost, host,160);
4295         strncpy(clientlist[tempnick]->server, ServerName,256);
4296         strncpy(clientlist[tempnick]->ident, "unknown",9);
4297         clientlist[tempnick]->registered = 0;
4298         clientlist[tempnick]->signon = time(NULL);
4299         clientlist[tempnick]->nping = time(NULL)+240;
4300         clientlist[tempnick]->lastping = 1;
4301         clientlist[tempnick]->port = port;
4302
4303         if (iscached)
4304         {
4305                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4306         }
4307         else
4308         {
4309                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4310         }
4311
4312         // set the registration timeout for this user
4313         unsigned long class_regtimeout = 90;
4314         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4315         {
4316                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4317                 {
4318                         class_regtimeout = (unsigned long)i->registration_timeout;
4319                         break;
4320                 }
4321         }
4322
4323         int class_flood = 0;
4324         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4325         {
4326                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4327                 {
4328                         class_flood = i->flood;
4329                         break;
4330                 }
4331         }
4332
4333         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4334         clientlist[tempnick]->flood = class_flood;
4335
4336         for (int i = 0; i < MAXCHANS; i++)
4337         {
4338                 clientlist[tempnick]->chans[i].channel = NULL;
4339                 clientlist[tempnick]->chans[i].uc_modes = 0;
4340         }
4341
4342         if (clientlist.size() == MAXCLIENTS)
4343                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4344 }
4345
4346 void handle_names(char **parameters, int pcnt, userrec *user)
4347 {
4348         chanrec* c;
4349
4350         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4351                 return;
4352         c = FindChan(parameters[0]);
4353         if (c)
4354         {
4355                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4356                 userlist(user,c);
4357                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4358         }
4359         else
4360         {
4361                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4362         }
4363 }
4364
4365 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4366 {
4367         userrec *dest;
4368         chanrec *chan;
4369
4370         user->idle_lastmsg = time(NULL);
4371
4372         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4373                 return;
4374         if (parameters[0][0] == '#')
4375         {
4376                 chan = FindChan(parameters[0]);
4377                 if (chan)
4378                 {
4379                         if ((chan->noexternal) && (!has_channel(user,chan)))
4380                         {
4381                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4382                                 return;
4383                         }
4384                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4385                         {
4386                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4387                                 return;
4388                         }
4389
4390                         int MOD_RESULT = 0;
4391
4392                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4393                         if (MOD_RESULT) {
4394                                 return;
4395                         }
4396
4397                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4398
4399                         // if any users of this channel are on remote servers, broadcast the packet
4400                         char buffer[MAXBUF];
4401                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4402                         for (int j = 0; j < 255; j++)
4403                         {
4404                                 if (servers[j] != NULL)
4405                                 {
4406                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4407                                         {
4408                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4409                                         }
4410                                 }
4411                         }
4412                 }
4413                 else
4414                 {
4415                         /* no such nick/channel */
4416                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4417                 }
4418                 return;
4419         }
4420
4421         dest = Find(parameters[0]);
4422         if (dest)
4423         {
4424                 if (strcmp(dest->awaymsg,""))
4425                 {
4426                         /* auto respond with aweh msg */
4427                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4428                 }
4429
4430                 int MOD_RESULT = 0;
4431
4432                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4433                 if (MOD_RESULT) {
4434                         return;
4435                 }
4436
4437
4438
4439                 if (!strcmp(dest->server,user->server))
4440                 {
4441                         // direct write, same server
4442                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4443                 }
4444                 else
4445                 {
4446                         for (int j = 0; j < 255; j++)
4447                         {
4448                                 if (servers[j] != NULL)
4449                                 {
4450                                         if (!strcasecmp(servers[j]->name,dest->server))
4451                                         {
4452                                                 // direct write, same server
4453                                                 char buffer[MAXBUF];
4454                                                 snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4455                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4456                                         }
4457                                 }
4458                         }
4459                 }
4460         }
4461         else
4462         {
4463                 /* no such nick/channel */
4464                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4465         }
4466 }
4467
4468 void handle_notice(char **parameters, int pcnt, userrec *user)
4469 {
4470         userrec *dest;
4471         chanrec *chan;
4472
4473         user->idle_lastmsg = time(NULL);
4474
4475         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4476                 return;
4477         if (parameters[0][0] == '#')
4478         {
4479                 chan = FindChan(parameters[0]);
4480                 if (chan)
4481                 {
4482                         if ((chan->noexternal) && (!has_channel(user,chan)))
4483                         {
4484                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4485                                 return;
4486                         }
4487                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4488                         {
4489                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4490                                 return;
4491                         }
4492
4493                         int MOD_RESULT = 0;
4494
4495                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4496                         if (MOD_RESULT) {
4497                                 return;
4498                         }
4499
4500                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4501
4502                         // if any users of this channel are on remote servers, broadcast the packet
4503                         char buffer[MAXBUF];
4504                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4505                         for (int j = 0; j < 255; j++)
4506                         {
4507                                 if (servers[j] != NULL)
4508                                 {
4509                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4510                                         {
4511                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4512                                         }
4513                                 }
4514                         }
4515                 }
4516                 else
4517                 {
4518                         /* no such nick/channel */
4519                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4520                 }
4521                 return;
4522         }
4523
4524         dest = Find(parameters[0]);
4525         if (dest)
4526         {
4527                 int MOD_RESULT = 0;
4528
4529                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4530                 if (MOD_RESULT) {
4531                         return;
4532                 }
4533
4534                 if (!strcmp(dest->server,user->server))
4535                 {
4536                         // direct write, same server
4537                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4538                 }
4539                 else
4540                 {
4541                         for (int j = 0; j < 255; j++)
4542                         {
4543                                 if (servers[j] != NULL)
4544                                 {
4545                                         if (!strcasecmp(servers[j]->name,dest->server))
4546                                         {
4547                                                 // direct write, same server
4548                                                 char buffer[MAXBUF];
4549                                                 snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4550                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4551                                         }
4552                                 }
4553                         }
4554                 }
4555         }
4556         else
4557         {
4558                 /* no such nick/channel */
4559                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4560         }
4561 }
4562
4563 char lst[MAXBUF];
4564
4565 char* chlist(userrec *user)
4566 {
4567         int i = 0;
4568         char cmp[MAXBUF];
4569
4570         log(DEBUG,"chlist: %s",user->nick);
4571         strcpy(lst,"");
4572         if (!user)
4573         {
4574                 return lst;
4575         }
4576         for (int i = 0; i != MAXCHANS; i++)
4577         {
4578                 if (user->chans[i].channel != NULL)
4579                 {
4580                         if (user->chans[i].channel->name)
4581                         {
4582                                 strcpy(cmp,user->chans[i].channel->name);
4583                                 strcat(cmp," ");
4584                                 if (!strstr(lst,cmp))
4585                                 {
4586                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4587                                         {
4588                                                 strcat(lst,cmode(user,user->chans[i].channel));
4589                                                 strcat(lst,user->chans[i].channel->name);
4590                                                 strcat(lst," ");
4591                                         }
4592                                 }
4593                         }
4594                 }
4595         }
4596         if (strlen(lst))
4597         {
4598                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4599         }
4600         return lst;
4601 }
4602
4603 void handle_info(char **parameters, int pcnt, userrec *user)
4604 {
4605         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4606         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4607         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4608         FOREACH_MOD OnInfo(user);
4609         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4610 }
4611
4612 void handle_time(char **parameters, int pcnt, userrec *user)
4613 {
4614         time_t rawtime;
4615         struct tm * timeinfo;
4616
4617         time ( &rawtime );
4618         timeinfo = localtime ( &rawtime );
4619         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4620
4621 }
4622
4623 void handle_whois(char **parameters, int pcnt, userrec *user)
4624 {
4625         userrec *dest;
4626         char *t;
4627
4628         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4629                 return;
4630         dest = Find(parameters[0]);
4631         if (dest)
4632         {
4633                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4634                 if (dest->registered == 7)
4635                 {
4636                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4637                         if ((user == dest) || (strchr(user->modes,'o')))
4638                         {
4639                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4640                         }
4641                         if (strcmp(chlist(dest),""))
4642                         {
4643                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4644                         }
4645                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4646                         if (strcmp(dest->awaymsg,""))
4647                         {
4648                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4649                         }
4650                         if (strchr(dest->modes,'o'))
4651                         {
4652                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4653                         }
4654                         FOREACH_MOD OnWhois(user,dest);
4655                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4656                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4657
4658                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4659                 }
4660                 else
4661                 {
4662                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4663                 }
4664         }
4665         else
4666         {
4667                 /* no such nick/channel */
4668                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4669         }
4670 }
4671
4672 void send_network_quit(const char* nick, const char* reason)
4673 {
4674                 char buffer[MAXBUF];
4675                 snprintf(buffer,MAXBUF,"Q %s :%s",nick,reason);
4676                 for (int j = 0; j < 255; j++)
4677                 {
4678                         if (servers[j] != NULL)
4679                         {
4680                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4681                                 log(DEBUG,"Sent Q token");
4682                         }
4683                 }
4684 }
4685
4686 void handle_quit(char **parameters, int pcnt, userrec *user)
4687 {
4688         user_hash::iterator iter = clientlist.find(user->nick);
4689         char* reason;
4690
4691         if (user->registered == 7)
4692         {
4693                 /* theres more to do here, but for now just close the socket */
4694                 if (pcnt == 1)
4695                 {
4696                         if (parameters[0][0] == ':')
4697                         {
4698                                 *parameters[0]++;
4699                         }
4700                         reason = parameters[0];
4701
4702                         if (strlen(reason)>MAXQUIT)
4703                         {
4704                                 reason[MAXQUIT-1] = '\0';
4705                         }
4706
4707                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4708                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4709                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4710
4711                         char buffer[MAXBUF];
4712                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4713                         for (int j = 0; j < 255; j++)
4714                         {
4715                                 if (servers[j] != NULL)
4716                                 {
4717                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4718                                         log(DEBUG,"Sent Q token");
4719                                 }
4720                         }
4721                 }
4722                 else
4723                 {
4724                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4725                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4726                         WriteCommonExcept(user,"QUIT :Client exited");
4727
4728                         char buffer[MAXBUF];
4729                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4730                         for (int j = 0; j < 255; j++)
4731                         {
4732                                 if (servers[j] != NULL)
4733                                 {
4734                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4735                                         log(DEBUG,"Sent Q token");
4736                                 }
4737                         }
4738                 }
4739                 FOREACH_MOD OnUserQuit(user);
4740                 AddWhoWas(user);
4741         }
4742
4743         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4744         fd_reap.push_back(user->fd);
4745
4746         if (iter != clientlist.end())
4747         {
4748                 clientlist.erase(iter);
4749                 log(DEBUG,"deleting user hash value %d",iter->second);
4750                 //if ((user) && (user->registered == 7)) {
4751                         //delete user;
4752                 //}
4753         }
4754
4755         if (user->registered == 7) {
4756                 purge_empty_chans();
4757         }
4758 }
4759
4760 void handle_who(char **parameters, int pcnt, userrec *user)
4761 {
4762         chanrec* Ptr = NULL;
4763
4764         /* theres more to do here, but for now just close the socket */
4765         if (pcnt == 1)
4766         {
4767                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4768                 {
4769                         if (user->chans[0].channel)
4770                         {
4771                                 Ptr = user->chans[0].channel;
4772                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4773                                 {
4774                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4775                                         {
4776                                                 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);
4777                                         }
4778                                 }
4779                         }
4780                         if (Ptr)
4781                         {
4782                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4783                         }
4784                         else
4785                         {
4786                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4787                         }
4788                         return;
4789                 }
4790                 if (parameters[0][0] == '#')
4791                 {
4792                         Ptr = FindChan(parameters[0]);
4793                         if (Ptr)
4794                         {
4795                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4796                                 {
4797                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4798                                         {
4799                                                 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);
4800                                         }
4801                                 }
4802                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4803                         }
4804                         else
4805                         {
4806                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4807                         }
4808                 }
4809                 else
4810                 {
4811                         userrec* u = Find(parameters[0]);
4812                         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);
4813                 }
4814         }
4815         if (pcnt == 2)
4816         {
4817                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4818                 {
4819                         Ptr = user->chans[0].channel;
4820                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4821                         {
4822                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4823                                 {
4824                                         if (strchr(i->second->modes,'o'))
4825                                         {
4826                                                 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);
4827                                         }
4828                                 }
4829                         }
4830                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4831                         return;
4832                 }
4833         }
4834 }
4835
4836 void handle_wallops(char **parameters, int pcnt, userrec *user)
4837 {
4838         WriteWallOps(user,"%s",parameters[0]);
4839 }
4840
4841 void handle_list(char **parameters, int pcnt, userrec *user)
4842 {
4843         chanrec* Ptr;
4844
4845         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4846         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4847         {
4848                 if ((!i->second->c_private) && (!i->second->secret))
4849                 {
4850                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4851                 }
4852         }
4853         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4854 }
4855
4856
4857 void handle_rehash(char **parameters, int pcnt, userrec *user)
4858 {
4859         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4860         ReadConfig();
4861         FOREACH_MOD OnRehash();
4862         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4863 }
4864
4865
4866 int usercnt(void)
4867 {
4868         return clientlist.size();
4869 }
4870
4871
4872 int usercount_invisible(void)
4873 {
4874         int c = 0;
4875
4876         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4877         {
4878                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4879         }
4880         return c;
4881 }
4882
4883 int usercount_opers(void)
4884 {
4885         int c = 0;
4886
4887         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4888         {
4889                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4890         }
4891         return c;
4892 }
4893
4894 int usercount_unknown(void)
4895 {
4896         int c = 0;
4897
4898         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4899         {
4900                 if ((i->second->fd) && (i->second->registered != 7))
4901                         c++;
4902         }
4903         return c;
4904 }
4905
4906 long chancount(void)
4907 {
4908         return chanlist.size();
4909 }
4910
4911 long count_servs(void)
4912 {
4913         int c = 0;
4914         for (int j = 0; j < 255; j++)
4915         {
4916                 if (servers[j] != NULL)
4917                         c++;
4918         }
4919         return c;
4920 }
4921
4922 long servercount(void)
4923 {
4924         return count_servs()+1;
4925 }
4926
4927 long local_count()
4928 {
4929         int c = 0;
4930         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4931         {
4932                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
4933         }
4934         return c;
4935 }
4936
4937
4938 void handle_lusers(char **parameters, int pcnt, userrec *user)
4939 {
4940         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4941         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4942         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4943         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4944         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
4945 }
4946
4947 void handle_admin(char **parameters, int pcnt, userrec *user)
4948 {
4949         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4950         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4951         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4952         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4953 }
4954
4955 void ShowMOTD(userrec *user)
4956 {
4957         if (!MOTD.size())
4958         {
4959                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4960                 return;
4961         }
4962         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4963         for (int i = 0; i != MOTD.size(); i++)
4964         {
4965                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4966         }
4967         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4968 }
4969
4970 void ShowRULES(userrec *user)
4971 {
4972         if (!RULES.size())
4973         {
4974                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4975                 return;
4976         }
4977         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4978         for (int i = 0; i != RULES.size(); i++)
4979         {
4980                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4981         }
4982         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4983 }
4984
4985 /* shows the message of the day, and any other on-logon stuff */
4986 void ConnectUser(userrec *user)
4987 {
4988         user->registered = 7;
4989         user->idle_lastmsg = time(NULL);
4990         log(DEBUG,"ConnectUser: %s",user->nick);
4991
4992         if (strcmp(Passwd(user),"") && (!user->haspassed))
4993         {
4994                 kill_link(user,"Invalid password");
4995                 return;
4996         }
4997         if (IsDenied(user))
4998         {
4999                 kill_link(user,"Unauthorised connection");
5000                 return;
5001         }
5002
5003         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
5004         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
5005         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
5006         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
5007         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
5008         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);
5009         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);
5010         ShowMOTD(user);
5011         FOREACH_MOD OnUserConnect(user);
5012         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
5013
5014         char buffer[MAXBUF];
5015         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);
5016         for (int j = 0; j < 255; j++)
5017         {
5018                 if (servers[j] != NULL)
5019                 {
5020                         if (strcmp(servers[j]->name,ServerName))
5021                         {
5022                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5023                                 log(DEBUG,"Sent N token");
5024                         }
5025                 }
5026         }
5027
5028 }
5029
5030 void handle_version(char **parameters, int pcnt, userrec *user)
5031 {
5032         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
5033 }
5034
5035 void handle_ping(char **parameters, int pcnt, userrec *user)
5036 {
5037         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
5038 }
5039
5040 void handle_pong(char **parameters, int pcnt, userrec *user)
5041 {
5042         // set the user as alive so they survive to next ping
5043         user->lastping = 1;
5044 }
5045
5046 void handle_motd(char **parameters, int pcnt, userrec *user)
5047 {
5048         ShowMOTD(user);
5049 }
5050
5051 void handle_rules(char **parameters, int pcnt, userrec *user)
5052 {
5053         ShowRULES(user);
5054 }
5055
5056 void handle_user(char **parameters, int pcnt, userrec *user)
5057 {
5058         if (user->registered < 3)
5059         {
5060                 if (isident(parameters[0]) == 0) {
5061                         // This kinda Sucks, According to the RFC thou, its either this,
5062                         // or "You have already registered" :p -- Craig
5063                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
5064                 }
5065                 else {
5066                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
5067                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
5068                         strncat(user->ident,parameters[0],IDENTMAX);
5069                         strncpy(user->fullname,parameters[3],128);
5070                         user->registered = (user->registered | 1);
5071                 }
5072         }
5073         else
5074         {
5075                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5076                 return;
5077         }
5078         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5079         if (user->registered == 3)
5080         {
5081                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5082                 ConnectUser(user);
5083         }
5084 }
5085
5086 void handle_userhost(char **parameters, int pcnt, userrec *user)
5087 {
5088         char Return[MAXBUF],junk[MAXBUF];
5089         sprintf(Return,"302 %s :",user->nick);
5090         for (int i = 0; i < pcnt; i++)
5091         {
5092                 userrec *u = Find(parameters[i]);
5093                 if (u)
5094                 {
5095                         if (strchr(u->modes,'o'))
5096                         {
5097                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5098                                 strcat(Return,junk);
5099                         }
5100                         else
5101                         {
5102                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5103                                 strcat(Return,junk);
5104                         }
5105                 }
5106         }
5107         WriteServ(user->fd,Return);
5108 }
5109
5110
5111 void handle_ison(char **parameters, int pcnt, userrec *user)
5112 {
5113         char Return[MAXBUF];
5114         sprintf(Return,"303 %s :",user->nick);
5115         for (int i = 0; i < pcnt; i++)
5116         {
5117                 userrec *u = Find(parameters[i]);
5118                 if (u)
5119                 {
5120                         strcat(Return,u->nick);
5121                         strcat(Return," ");
5122                 }
5123         }
5124         WriteServ(user->fd,Return);
5125 }
5126
5127
5128 void handle_away(char **parameters, int pcnt, userrec *user)
5129 {
5130         if (pcnt)
5131         {
5132                 strcpy(user->awaymsg,parameters[0]);
5133                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5134         }
5135         else
5136         {
5137                 strcpy(user->awaymsg,"");
5138                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5139         }
5140 }
5141
5142 void handle_whowas(char **parameters, int pcnt, userrec* user)
5143 {
5144         user_hash::iterator i = whowas.find(parameters[0]);
5145
5146         if (i == whowas.end())
5147         {
5148                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5149                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5150         }
5151         else
5152         {
5153                 time_t rawtime = i->second->signon;
5154                 tm *timeinfo;
5155                 char b[MAXBUF];
5156
5157                 timeinfo = localtime(&rawtime);
5158                 strcpy(b,asctime(timeinfo));
5159                 b[strlen(b)-1] = '\0';
5160
5161                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5162                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5163                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5164         }
5165
5166 }
5167
5168 void handle_trace(char **parameters, int pcnt, userrec *user)
5169 {
5170         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5171         {
5172                 if (i->second)
5173                 {
5174                         if (isnick(i->second->nick))
5175                         {
5176                                 if (strchr(i->second->modes,'o'))
5177                                 {
5178                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5179                                 }
5180                                 else
5181                                 {
5182                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5183                                 }
5184                         }
5185                         else
5186                         {
5187                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5188                         }
5189                 }
5190         }
5191 }
5192
5193 void handle_modules(char **parameters, int pcnt, userrec *user)
5194 {
5195         for (int i = 0; i < module_names.size(); i++)
5196         {
5197                         Version V = modules[i]->GetVersion();
5198                         char modulename[MAXBUF];
5199                         strncpy(modulename,module_names[i].c_str(),256);
5200                         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));
5201         }
5202 }
5203
5204 // calls a handler function for a command
5205
5206 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
5207 {
5208                 for (int i = 0; i < cmdlist.size(); i++)
5209                 {
5210                         if (!strcasecmp(cmdlist[i].command,commandname))
5211                         {
5212                                 if (cmdlist[i].handler_function)
5213                                 {
5214                                         if (pcnt>=cmdlist[i].min_params)
5215                                         {
5216                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
5217                                                 {
5218                                                         cmdlist[i].handler_function(parameters,pcnt,user);
5219                                                 }
5220                                         }
5221                                 }
5222                         }
5223                 }
5224 }
5225
5226 void handle_stats(char **parameters, int pcnt, userrec *user)
5227 {
5228         if (pcnt != 1)
5229         {
5230                 return;
5231         }
5232         if (strlen(parameters[0])>1)
5233         {
5234                 /* make the stats query 1 character long */
5235                 parameters[0][1] = '\0';
5236         }
5237
5238         /* stats m (list number of times each command has been used, plus bytecount) */
5239         if (!strcasecmp(parameters[0],"m"))
5240         {
5241                 for (int i = 0; i < cmdlist.size(); i++)
5242                 {
5243                         if (cmdlist[i].handler_function)
5244                         {
5245                                 if (cmdlist[i].use_count)
5246                                 {
5247                                         /* RPL_STATSCOMMANDS */
5248                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5249                                 }
5250                         }
5251                 }
5252
5253         }
5254
5255         /* stats z (debug and memory info) */
5256         if (!strcasecmp(parameters[0],"z"))
5257         {
5258                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5259                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5260                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5261                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5262                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5263                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5264                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5265                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5266         }
5267
5268         /* stats o */
5269         if (!strcasecmp(parameters[0],"o"))
5270         {
5271                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5272                 {
5273                         char LoginName[MAXBUF];
5274                         char HostName[MAXBUF];
5275                         char OperType[MAXBUF];
5276                         ConfValue("oper","name",i,LoginName,&config_f);
5277                         ConfValue("oper","host",i,HostName,&config_f);
5278                         ConfValue("oper","type",i,OperType,&config_f);
5279                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5280                 }
5281         }
5282
5283         /* stats l (show user I/O stats) */
5284         if (!strcasecmp(parameters[0],"l"))
5285         {
5286                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5287                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5288                 {
5289                         if (isnick(i->second->nick))
5290                         {
5291                                 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);
5292                         }
5293                         else
5294                         {
5295                                 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);
5296                         }
5297
5298                 }
5299         }
5300
5301         /* stats u (show server uptime) */
5302         if (!strcasecmp(parameters[0],"u"))
5303         {
5304                 time_t current_time = 0;
5305                 current_time = time(NULL);
5306                 time_t server_uptime = current_time - startup_time;
5307                 struct tm* stime;
5308                 stime = gmtime(&server_uptime);
5309                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5310                  * Craig suggested this, and it seemed a good idea so in it went */
5311                 if (stime->tm_year > 70)
5312                 {
5313                         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);
5314                 }
5315                 else
5316                 {
5317                         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);
5318                 }
5319         }
5320
5321         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5322         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5323
5324 }
5325
5326 void handle_connect(char **parameters, int pcnt, userrec *user)
5327 {
5328         char Link_ServerName[1024];
5329         char Link_IPAddr[1024];
5330         char Link_Port[1024];
5331         char Link_Pass[1024];
5332         int LinkPort;
5333         bool found = false;
5334
5335         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5336         {
5337                 ConfValue("link","name",i,Link_ServerName,&config_f);
5338                 ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5339                 ConfValue("link","port",i,Link_Port,&config_f);
5340                 ConfValue("link","sendpass",i,Link_Pass,&config_f);
5341                 log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5342                 LinkPort = atoi(Link_Port);
5343                 if (match(Link_ServerName,parameters[0])) {
5344                         found = true;
5345                 }
5346         }
5347
5348         if (!found) {
5349                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5350                 return;
5351         }
5352
5353         // TODO: Perform a check here to stop a server being linked twice!
5354
5355         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5356
5357         if (me[defaultRoute])
5358         {
5359
5360                 // at this point parameters[0] is an ip in a string.
5361                 // TODO: Look this up from the <link> blocks instead!
5362                 for (int j = 0; j < 255; j++) {
5363                         if (servers[j] == NULL) {
5364                                 servers[j] = new serverrec;
5365                                 //servers[j]->initiator = true;
5366                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
5367                                 servers[j]->internal_port = LinkPort;
5368                                 strcpy(servers[j]->name,Link_ServerName);
5369                                 log(DEBUG,"Allocated new serverrec");
5370                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
5371                                 {
5372                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
5373                                 }
5374                                 return;
5375                         }
5376                 }
5377                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
5378         }
5379         else
5380         {
5381                 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);
5382         }
5383 }
5384
5385 void handle_squit(char **parameters, int pcnt, userrec *user)
5386 {
5387         // send out an squit across the mesh and then clear the server list (for local squit)
5388 }
5389
5390 char islast(serverrec* s)
5391 {
5392         char c = '`';
5393         for (int j = 0; j < 255; j++)
5394         {
5395                 if (servers[j] != NULL)
5396                 {
5397                         c = '|';
5398                 }
5399                 if (servers[j] == s)
5400                 {
5401                         c = '`';
5402                 }
5403         }
5404         return c;
5405 }
5406
5407 long map_count(serverrec* s)
5408 {
5409         int c = 0;
5410         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
5411         {
5412                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s->name))) c++;
5413         }
5414         return c;
5415 }
5416
5417 void handle_links(char **parameters, int pcnt, userrec *user)
5418 {
5419         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5420         for (int j = 0; j < 255; j++)
5421         {
5422                 if (servers[j] != NULL)
5423                 {
5424                         WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,servers[j]->name,ServerName,servers[j]->description);
5425                 }
5426         }
5427         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5428 }
5429
5430 void handle_map(char **parameters, int pcnt, userrec *user)
5431 {
5432         char line[MAXBUF];
5433         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
5434         while (strlen(line) < 50)
5435                 strcat(line," ");
5436         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
5437         for (int j = 0; j < 255; j++)
5438         {
5439                 if (servers[j] != NULL)
5440                 {
5441                         snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(servers[j]),servers[j]->name);
5442                         while (strlen(line) < 50)
5443                                 strcat(line," ");
5444                         WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(servers[j]),(float)(((float)map_count(servers[j])/(float)usercnt())*100));
5445                 }
5446         }
5447         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5448 }
5449
5450
5451 void handle_oper(char **parameters, int pcnt, userrec *user)
5452 {
5453         char LoginName[MAXBUF];
5454         char Password[MAXBUF];
5455         char OperType[MAXBUF];
5456         char TypeName[MAXBUF];
5457         char Hostname[MAXBUF];
5458         int i,j;
5459
5460         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5461         {
5462                 ConfValue("oper","name",i,LoginName,&config_f);
5463                 ConfValue("oper","password",i,Password,&config_f);
5464                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5465                 {
5466                         /* correct oper credentials */
5467                         ConfValue("oper","type",i,OperType,&config_f);
5468                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5469                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5470                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5471                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5472                         {
5473                                 ConfValue("type","name",j,TypeName,&config_f);
5474                                 if (!strcmp(TypeName,OperType))
5475                                 {
5476                                         /* found this oper's opertype */
5477                                         ConfValue("type","host",j,Hostname,&config_f);
5478                                         strncpy(user->dhost,Hostname,256);
5479                                 }
5480                         }
5481                         if (!strchr(user->modes,'o'))
5482                         {
5483                                 strcat(user->modes,"o");
5484                         }
5485                         FOREACH_MOD OnOper(user);
5486                         return;
5487                 }
5488         }
5489         /* no such oper */
5490         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5491         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5492 }
5493
5494 void handle_nick(char **parameters, int pcnt, userrec *user)
5495 {
5496         if (pcnt < 1)
5497         {
5498                 log(DEBUG,"not enough params for handle_nick");
5499                 return;
5500         }
5501         if (!parameters[0])
5502         {
5503                 log(DEBUG,"invalid parameter passed to handle_nick");
5504                 return;
5505         }
5506         if (!strlen(parameters[0]))
5507         {
5508                 log(DEBUG,"zero length new nick passed to handle_nick");
5509                 return;
5510         }
5511         if (!user)
5512         {
5513                 log(DEBUG,"invalid user passed to handle_nick");
5514                 return;
5515         }
5516         if (!user->nick)
5517         {
5518                 log(DEBUG,"invalid old nick passed to handle_nick");
5519                 return;
5520         }
5521         if (!strcasecmp(user->nick,parameters[0]))
5522         {
5523                 log(DEBUG,"old nick is new nick, skipping");
5524                 return;
5525         }
5526         else
5527         {
5528                 if (strlen(parameters[0]) > 1)
5529                 {
5530                         if (parameters[0][0] == ':')
5531                         {
5532                                 *parameters[0]++;
5533                         }
5534                 }
5535                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5536                 {
5537                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5538                         return;
5539                 }
5540         }
5541         if (isnick(parameters[0]) == 0)
5542         {
5543                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5544                 return;
5545         }
5546
5547         if (user->registered == 7)
5548         {
5549                 WriteCommon(user,"NICK %s",parameters[0]);
5550
5551                 // Q token must go to ALL servers!!!
5552                 char buffer[MAXBUF];
5553                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5554                 for (int j = 0; j < 255; j++)
5555                 {
5556                         if (servers[j] != NULL)
5557                         {
5558                                 if (strcmp(servers[j]->name,ServerName))
5559                                 {
5560                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5561                                         log(DEBUG,"Sent n token");
5562                                 }
5563                         }
5564                 }
5565
5566         }
5567
5568         /* change the nick of the user in the users_hash */
5569         user = ReHashNick(user->nick, parameters[0]);
5570         /* actually change the nick within the record */
5571         if (!user) return;
5572         if (!user->nick) return;
5573
5574         strncpy(user->nick, parameters[0],NICKMAX);
5575
5576         log(DEBUG,"new nick set: %s",user->nick);
5577
5578         if (user->registered < 3)
5579                 user->registered = (user->registered | 2);
5580         if (user->registered == 3)
5581         {
5582                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5583                 ConnectUser(user);
5584         }
5585         log(DEBUG,"exit nickchange: %s",user->nick);
5586 }
5587
5588 void force_nickchange(userrec* user,const char* newnick)
5589 {
5590         char nick[MAXBUF];
5591         strcpy(nick,"");
5592
5593         if (user)
5594         {
5595                 if (newnick)
5596                 {
5597                         strncpy(nick,newnick,MAXBUF);
5598                 }
5599                 if (user->registered == 7)
5600                 {
5601                         char* pars[1];
5602                         pars[0] = nick;
5603                         handle_nick(pars,1,user);
5604                 }
5605         }
5606 }
5607
5608
5609 int process_parameters(char **command_p,char *parameters)
5610 {
5611         int i = 0;
5612         int j = 0;
5613         int q = 0;
5614         q = strlen(parameters);
5615         if (!q)
5616         {
5617                 /* no parameters, command_p invalid! */
5618                 return 0;
5619         }
5620         if (parameters[0] == ':')
5621         {
5622                 command_p[0] = parameters+1;
5623                 return 1;
5624         }
5625         if (q)
5626         {
5627                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5628                 {
5629                         /* only one parameter */
5630                         command_p[0] = parameters;
5631                         if (parameters[0] == ':')
5632                         {
5633                                 if (strchr(parameters,' ') != NULL)
5634                                 {
5635                                         command_p[0]++;
5636                                 }
5637                         }
5638                         return 1;
5639                 }
5640         }
5641         command_p[j++] = parameters;
5642         for (int i = 0; i <= q; i++)
5643         {
5644                 if (parameters[i] == ' ')
5645                 {
5646                         command_p[j++] = parameters+i+1;
5647                         parameters[i] = '\0';
5648                         if (command_p[j-1][0] == ':')
5649                         {
5650                                 *command_p[j-1]++; /* remove dodgy ":" */
5651                                 break;
5652                                 /* parameter like this marks end of the sequence */
5653                         }
5654                 }
5655         }
5656         return j; /* returns total number of items in the list */
5657 }
5658
5659 void process_command(userrec *user, char* cmd)
5660 {
5661         char *parameters;
5662         char *command;
5663         char *command_p[127];
5664         char p[MAXBUF], temp[MAXBUF];
5665         int i, j, items, cmd_found;
5666
5667         for (int i = 0; i < 127; i++)
5668                 command_p[i] = NULL;
5669
5670         if (!user)
5671         {
5672                 return;
5673         }
5674         if (!cmd)
5675         {
5676                 return;
5677         }
5678         if (!strcmp(cmd,""))
5679         {
5680                 return;
5681         }
5682
5683         int total_params = 0;
5684         if (strlen(cmd)>2)
5685         {
5686                 for (int q = 0; q < strlen(cmd)-1; q++)
5687                 {
5688                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5689                         {
5690                                 total_params++;
5691                                 // found a 'trailing', we dont count them after this.
5692                                 break;
5693                         }
5694                         if (cmd[q] == ' ')
5695                                 total_params++;
5696                 }
5697         }
5698
5699         // another phidjit bug...
5700         if (total_params > 126)
5701         {
5702                 kill_link(user,"Protocol violation (1)");
5703                 return;
5704         }
5705
5706         strcpy(temp,cmd);
5707
5708         string tmp = cmd;
5709         FOREACH_MOD OnServerRaw(tmp,true);
5710         const char* cmd2 = tmp.c_str();
5711         snprintf(cmd,512,"%s",cmd2);
5712
5713         if (!strchr(cmd,' '))
5714         {
5715                 /* no parameters, lets skip the formalities and not chop up
5716                  * the string */
5717                 log(DEBUG,"About to preprocess command with no params");
5718                 items = 0;
5719                 command_p[0] = NULL;
5720                 parameters = NULL;
5721                 for (int i = 0; i <= strlen(cmd); i++)
5722                 {
5723                         cmd[i] = toupper(cmd[i]);
5724                 }
5725                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5726                 command = cmd;
5727         }
5728         else
5729         {
5730                 strcpy(cmd,"");
5731                 j = 0;
5732                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5733                 for (int i = 0; i < strlen(temp); i++)
5734                 {
5735                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5736                         {
5737                                 cmd[j++] = temp[i];
5738                                 cmd[j] = 0;
5739                         }
5740                 }
5741                 /* split the full string into a command plus parameters */
5742                 parameters = p;
5743                 strcpy(p," ");
5744                 command = cmd;
5745                 if (strchr(cmd,' '))
5746                 {
5747                         for (int i = 0; i <= strlen(cmd); i++)
5748                         {
5749                                 /* capitalise the command ONLY, leave params intact */
5750                                 cmd[i] = toupper(cmd[i]);
5751                                 /* are we nearly there yet?! :P */
5752                                 if (cmd[i] == ' ')
5753                                 {
5754                                         command = cmd;
5755                                         parameters = cmd+i+1;
5756                                         cmd[i] = '\0';
5757                                         break;
5758                                 }
5759                         }
5760                 }
5761                 else
5762                 {
5763                         for (int i = 0; i <= strlen(cmd); i++)
5764                         {
5765                                 cmd[i] = toupper(cmd[i]);
5766                         }
5767                 }
5768
5769         }
5770         cmd_found = 0;
5771
5772         if (strlen(command)>MAXCOMMAND)
5773         {
5774                 kill_link(user,"Protocol violation (2)");
5775                 return;
5776         }
5777
5778         for (int x = 0; x < strlen(command); x++)
5779         {
5780                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5781                 {
5782                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5783                         {
5784                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5785                                 {
5786                                         kill_link(user,"Protocol violation (3)");
5787                                         return;
5788                                 }
5789                         }
5790                 }
5791         }
5792
5793         for (int i = 0; i != cmdlist.size(); i++)
5794         {
5795                 if (strcmp(cmdlist[i].command,""))
5796                 {
5797                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5798                         {
5799                                 log(DEBUG,"Found matching command");
5800
5801                                 if (parameters)
5802                                 {
5803                                         if (strcmp(parameters,""))
5804                                         {
5805                                                 items = process_parameters(command_p,parameters);
5806                                         }
5807                                         else
5808                                         {
5809                                                 items = 0;
5810                                                 command_p[0] = NULL;
5811                                         }
5812                                 }
5813                                 else
5814                                 {
5815                                         items = 0;
5816                                         command_p[0] = NULL;
5817                                 }
5818
5819                                 if (user)
5820                                 {
5821                                         log(DEBUG,"Processing command");
5822
5823                                         /* activity resets the ping pending timer */
5824                                         user->nping = time(NULL) + 120;
5825                                         if ((items) < cmdlist[i].min_params)
5826                                         {
5827                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5828                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5829                                                 return;
5830                                         }
5831                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5832                                         {
5833                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5834                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5835                                                 cmd_found = 1;
5836                                                 return;
5837                                         }
5838                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5839                                          * deny command! */
5840                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5841                                         {
5842                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5843                                                 {
5844                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5845                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5846                                                         return;
5847                                                 }
5848                                         }
5849                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5850                                         {
5851                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5852                                                 if (cmdlist[i].handler_function)
5853                                                 {
5854                                                         /* ikky /stats counters */
5855                                                         if (temp)
5856                                                         {
5857                                                                 if (user)
5858                                                                 {
5859                                                                         user->bytes_in += strlen(temp);
5860                                                                         user->cmds_in++;
5861                                                                 }
5862                                                                 cmdlist[i].use_count++;
5863                                                                 cmdlist[i].total_bytes+=strlen(temp);
5864                                                         }
5865
5866                                                         /* WARNING: nothing may come after the
5867                                                          * command handler call, as the handler
5868                                                          * may free the user structure! */
5869
5870                                                         cmdlist[i].handler_function(command_p,items,user);
5871                                                 }
5872                                                 return;
5873                                         }
5874                                         else
5875                                         {
5876                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5877                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5878                                                 return;
5879                                         }
5880                                 }
5881                                 cmd_found = 1;
5882                         }
5883                 }
5884         }
5885         if ((!cmd_found) && (user))
5886         {
5887                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5888                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5889         }
5890 }
5891
5892
5893 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5894 {
5895         command_t comm;
5896         /* create the command and push it onto the table */
5897         strcpy(comm.command,cmd);
5898         comm.handler_function = f;
5899         comm.flags_needed = flags;
5900         comm.min_params = minparams;
5901         comm.use_count = 0;
5902         comm.total_bytes = 0;
5903         cmdlist.push_back(comm);
5904         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5905 }
5906
5907 void SetupCommandTable(void)
5908 {
5909         createcommand("USER",handle_user,0,4);
5910         createcommand("NICK",handle_nick,0,1);
5911         createcommand("QUIT",handle_quit,0,0);
5912         createcommand("VERSION",handle_version,0,0);
5913         createcommand("PING",handle_ping,0,1);
5914         createcommand("PONG",handle_pong,0,1);
5915         createcommand("ADMIN",handle_admin,0,0);
5916         createcommand("PRIVMSG",handle_privmsg,0,2);
5917         createcommand("INFO",handle_info,0,0);
5918         createcommand("TIME",handle_time,0,0);
5919         createcommand("WHOIS",handle_whois,0,1);
5920         createcommand("WALLOPS",handle_wallops,'o',1);
5921         createcommand("NOTICE",handle_notice,0,2);
5922         createcommand("JOIN",handle_join,0,1);
5923         createcommand("NAMES",handle_names,0,1);
5924         createcommand("PART",handle_part,0,1);
5925         createcommand("KICK",handle_kick,0,2);
5926         createcommand("MODE",handle_mode,0,1);
5927         createcommand("TOPIC",handle_topic,0,1);
5928         createcommand("WHO",handle_who,0,1);
5929         createcommand("MOTD",handle_motd,0,0);
5930         createcommand("RULES",handle_rules,0,0);
5931         createcommand("OPER",handle_oper,0,2);
5932         createcommand("LIST",handle_list,0,0);
5933         createcommand("DIE",handle_die,'o',1);
5934         createcommand("RESTART",handle_restart,'o',1);
5935         createcommand("KILL",handle_kill,'o',2);
5936         createcommand("REHASH",handle_rehash,'o',0);
5937         createcommand("LUSERS",handle_lusers,0,0);
5938         createcommand("STATS",handle_stats,0,1);
5939         createcommand("USERHOST",handle_userhost,0,1);
5940         createcommand("AWAY",handle_away,0,0);
5941         createcommand("ISON",handle_ison,0,0);
5942         createcommand("SUMMON",handle_summon,0,0);
5943         createcommand("USERS",handle_users,0,0);
5944         createcommand("INVITE",handle_invite,0,2);
5945         createcommand("PASS",handle_pass,0,1);
5946         createcommand("TRACE",handle_trace,'o',0);
5947         createcommand("WHOWAS",handle_whowas,0,1);
5948         createcommand("CONNECT",handle_connect,'o',1);
5949         createcommand("SQUIT",handle_squit,'o',1);
5950         createcommand("MODULES",handle_modules,'o',0);
5951         createcommand("LINKS",handle_links,0,0);
5952         createcommand("MAP",handle_map,0,0);
5953 }
5954
5955 void process_buffer(const char* cmdbuf,userrec *user)
5956 {
5957         if (!user)
5958         {
5959                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5960                 return;
5961         }
5962         char cmd[MAXBUF];
5963         int i;
5964         if (!cmdbuf)
5965         {
5966                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5967                 return;
5968         }
5969         if (!strcmp(cmdbuf,""))
5970         {
5971                 return;
5972         }
5973         strncpy(cmd,cmdbuf,MAXBUF);
5974         if (!strcmp(cmd,""))
5975         {
5976                 return;
5977         }
5978         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5979         {
5980                 cmd[strlen(cmd)-1] = '\0';
5981         }
5982         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5983         {
5984                 cmd[strlen(cmd)-1] = '\0';
5985         }
5986         if (!strcmp(cmd,""))
5987         {
5988                 return;
5989         }
5990         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5991         tidystring(cmd);
5992         if ((user) && (cmd))
5993         {
5994                 process_command(user,cmd);
5995         }
5996 }
5997
5998 void DoSync(serverrec* serv, char* udp_host,int udp_port, long MyKey)
5999 {
6000         char data[MAXBUF];
6001         // send start of sync marker: Y <timestamp>
6002         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
6003         // except the ones its receiving it from.
6004         snprintf(data,MAXBUF,"Y %d",time(NULL));
6005         serv->SendPacket(data,udp_host,udp_port,MyKey);
6006         // send users and channels
6007         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
6008         {
6009                 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);
6010                 serv->SendPacket(data,udp_host,udp_port,MyKey);
6011                 if (strcmp(chlist(u->second),""))
6012                 {
6013                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
6014                         serv->SendPacket(data,udp_host,udp_port,MyKey);
6015                 }
6016         }
6017         // send channel modes, topics etc...
6018         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
6019         {
6020                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
6021                 serv->SendPacket(data,udp_host,udp_port,MyKey);
6022                 if (strcmp(c->second->topic,""))
6023                 {
6024                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
6025                         serv->SendPacket(data,udp_host,udp_port,MyKey);
6026                 }
6027                 // send current banlist
6028
6029                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
6030                 {
6031                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
6032                         serv->SendPacket(data,udp_host,udp_port,MyKey);
6033                 }
6034         }
6035         // send end of sync marker: E <timestamp>
6036         snprintf(data,MAXBUF,"F %d",time(NULL));
6037         serv->SendPacket(data,udp_host,udp_port,MyKey);
6038         // ircd sends its serverlist after the end of sync here
6039 }
6040
6041
6042 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6043 {
6044         char* src = strtok(params," ");
6045         char* dest = strtok(NULL," :");
6046         char* text = strtok(NULL,"\r\n");
6047         text++;
6048
6049         userrec* user = Find(src);
6050         if (user)
6051         {
6052                 userrec* dst = Find(dest);
6053
6054                 if (dst)
6055                 {
6056                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
6057                 }
6058                 else
6059                 {
6060                         chanrec* d = FindChan(dest);
6061                         if (d)
6062                         {
6063                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
6064                         }
6065                 }
6066         }
6067
6068 }
6069
6070
6071 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6072 {
6073         char* src = strtok(params," ");
6074         char* dest = strtok(NULL," :");
6075         char* text = strtok(NULL,"\r\n");
6076         text++;
6077
6078         userrec* user = Find(src);
6079         if (user)
6080         {
6081                 userrec* dst = Find(dest);
6082
6083                 if (dst)
6084                 {
6085                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
6086                 }
6087                 else
6088                 {
6089                         chanrec* d = FindChan(dest);
6090                         if (d)
6091                         {
6092                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
6093                         }
6094                 }
6095         }
6096
6097 }
6098
6099 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6100 {
6101         char* nick = strtok(params," ");
6102         char* from = strtok(NULL," ");
6103         char* channel = strtok(NULL," ");
6104         userrec* u = Find(nick);
6105         userrec* user = Find(from);
6106         chanrec* c = FindChan(channel);
6107         if ((c) && (u) && (user))
6108         {
6109                 u->InviteTo(c->name);
6110                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
6111         }
6112 }
6113
6114 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6115 {
6116         char* setby = strtok(params," ");
6117         char* channel = strtok(NULL," :");
6118         char* topic = strtok(NULL,"\r\n");
6119         topic++;
6120         userrec* u = Find(setby);
6121         chanrec* c = FindChan(channel);
6122         if ((c) && (u))
6123         {
6124                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
6125                 strncpy(c->topic,topic,MAXTOPIC);
6126                 strncpy(c->setby,u->nick,NICKMAX);
6127         }
6128 }
6129
6130
6131 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6132 {
6133         char* tm = strtok(params," ");
6134         char* setby = strtok(NULL," ");
6135         char* channel = strtok(NULL," :");
6136         char* topic = strtok(NULL,"\r\n");
6137         topic++;
6138         time_t TS = atoi(tm);
6139         chanrec* c = FindChan(channel);
6140         if (c)
6141         {
6142                 // in the case of topics and TS, the *NEWER*
6143                 if (TS <= c->topicset)
6144                 {
6145                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6146                         strncpy(c->topic,topic,MAXTOPIC);
6147                         strncpy(c->setby,setby,NICKMAX);
6148                 }
6149         }
6150 }
6151
6152 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6153 {
6154         char* pars[128];
6155         char original[MAXBUF],target[MAXBUF];
6156         strncpy(original,params,MAXBUF);
6157         int index = 0;
6158         char* parameter = strtok(params," ");
6159         strncpy(target,parameter,MAXBUF);
6160         while (parameter)
6161         {
6162                 pars[index++] = parameter;
6163                 parameter = strtok(NULL," ");
6164         }
6165         merge_mode(pars,index);
6166         if (FindChan(target))
6167         {
6168                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6169         }
6170         if (Find(target))
6171         {
6172                 WriteTo(NULL,Find(target),"MODE %s",original);
6173         }
6174 }
6175
6176 // m is modes set by users only (not servers) valid targets are channels or users.
6177
6178 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6179 {
6180         // m blah #chatspike +b *!test@*4
6181         char* pars[128];
6182         char original[MAXBUF];
6183         strncpy(original,params,MAXBUF);
6184
6185         if (!strchr(params,' '))
6186         {
6187                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6188                 return;
6189         }
6190
6191         int index = 0;
6192
6193         char* src = strtok(params," ");
6194         userrec* user = Find(src);
6195
6196         if (user)
6197         {
6198                 log(DEBUG,"Found user: %s",user->nick);
6199                 char* parameter = strtok(NULL," ");
6200                 while (parameter)
6201                 {
6202                         pars[index++] = parameter;
6203                         parameter = strtok(NULL," ");
6204                 }
6205
6206                 log(DEBUG,"Calling merge_mode2");
6207                 merge_mode2(pars,index,user);
6208         }
6209 }
6210
6211
6212 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6213 {
6214         char* nick = strtok(params," ");
6215         char* channel = strtok(NULL," :");
6216         char* reason = strtok(NULL,"\r\n");
6217         userrec* user = Find(nick);
6218         reason++;
6219         if (user)
6220         {
6221                 if (strcmp(reason,""))
6222                 {
6223                         del_channel(user,channel,reason,true);
6224                 }
6225                 else
6226                 {
6227                         del_channel(user,channel,NULL,true);
6228                 }
6229         }
6230 }
6231
6232 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6233 {
6234         char* nick = strtok(params," :");
6235         char* reason = strtok(NULL,"\r\n");
6236         reason++;
6237
6238         userrec* user = Find(nick);
6239
6240         if (user)
6241         {
6242                 if (strlen(reason)>MAXQUIT)
6243                 {
6244                         reason[MAXQUIT-1] = '\0';
6245                 }
6246
6247
6248                 WriteCommonExcept(user,"QUIT :%s",reason);
6249
6250                 user_hash::iterator iter = clientlist.find(user->nick);
6251
6252                 if (iter != clientlist.end())
6253                 {
6254                         log(DEBUG,"deleting user hash value %d",iter->second);
6255                         if ((iter->second) && (user->registered == 7)) {
6256                                 delete iter->second;
6257                         }
6258                         clientlist.erase(iter);
6259                 }
6260
6261                 purge_empty_chans();
6262         }
6263 }
6264
6265 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6266 {
6267         char* oldnick = strtok(params," ");
6268         char* newnick = strtok(NULL," ");
6269
6270         userrec* user = Find(oldnick);
6271
6272         if (user)
6273         {
6274                 WriteCommon(user,"NICK %s",newnick);
6275                 user = ReHashNick(user->nick, newnick);
6276                 if (!user) return;
6277                 if (!user->nick) return;
6278                 strncpy(user->nick, newnick,NICKMAX);
6279                 log(DEBUG,"new nick set: %s",user->nick);
6280         }
6281 }
6282
6283 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6284 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6285 {
6286         char* src = strtok(params," ");
6287         char* dest = strtok(NULL," ");
6288         char* channel = strtok(NULL," :");
6289         char* reason = strtok(NULL,"\r\n");
6290         reason++;
6291         userrec* s = Find(src);
6292         userrec* d = Find(dest);
6293         chanrec* c = FindChan(channel);
6294         if ((s) && (d) && (c))
6295         {
6296                 kick_channel(s,d,c,reason);
6297         }
6298 }
6299
6300 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6301 {
6302         char* tm = strtok(params," ");
6303         char* nick = strtok(NULL," ");
6304         char* host = strtok(NULL," ");
6305         char* dhost = strtok(NULL," ");
6306         char* ident = strtok(NULL," ");
6307         char* modes = strtok(NULL," ");
6308         char* server = strtok(NULL," :");
6309         char* gecos = strtok(NULL,"\r\n");
6310         gecos++;
6311         modes++;
6312         time_t TS = atoi(tm);
6313         user_hash::iterator iter = clientlist.find(nick);
6314         if (iter != clientlist.end())
6315         {
6316                 // nick collision
6317                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6318                 if (TS >= iter->second->age)
6319                 {
6320                         char str[MAXBUF];
6321                         snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6322                         WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6323                         // client on remote server is older than the local user, kill the local user
6324                         kill_link(iter->second,str);
6325                 }
6326         }
6327         clientlist[nick] = new userrec();
6328         // remote users have an fd of -1. This is so that our Write abstraction
6329         // routines know to route any messages to this record away to whatever server
6330         // theyre on.
6331         clientlist[nick]->fd = -1;
6332         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6333         strncpy(clientlist[nick]->host, host,160);
6334         strncpy(clientlist[nick]->dhost, dhost,160);
6335         strncpy(clientlist[nick]->server, server,256);
6336         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for '~'
6337         strncpy(clientlist[nick]->fullname, gecos,128);
6338         clientlist[nick]->signon = TS;
6339         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6340         clientlist[nick]->lastping = 1;
6341         clientlist[nick]->port = 0; // so is this...
6342         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6343         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6344         for (int i = 0; i < MAXCHANS; i++)
6345         {
6346                 clientlist[nick]->chans[i].channel = NULL;
6347                 clientlist[nick]->chans[i].uc_modes = 0;
6348         }
6349 }
6350
6351 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6352 {
6353         long tdiff = time(NULL) - atoi(params);
6354         if (tdiff)
6355                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6356 }
6357
6358 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6359 {
6360         // IMPORTANT NOTE
6361         // The J token currently has no timestamp - this needs looking at
6362         // because it will allow splitriding.
6363         char* nick = strtok(params," ");
6364         char* channel = strtok(NULL," ");
6365         userrec* user = Find(nick);
6366         while (channel)
6367         {
6368                 if ((user != NULL) && (strcmp(channel,"")))
6369                 {
6370                         char privilage = '\0';
6371                         if (channel[0] != '#')
6372                         {
6373                                 privilage = channel[0];
6374                                 channel++;
6375                         }
6376                         add_channel(user,channel,"",true);
6377
6378                         // now work out the privilages they should have on each channel
6379                         // and send the appropriate servermodes.
6380                         for (int i = 0; i != MAXCHANS; i++)
6381                         {
6382                                 if (user->chans[i].channel)
6383                                 {
6384                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6385                                         {
6386                                                 if (privilage == '@')
6387                                                 {
6388                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6389                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6390                                                 }
6391                                                 if (privilage == '%')
6392                                                 {
6393                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6394                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6395                                                 }
6396                                                 if (privilage == '+')
6397                                                 {
6398                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6399                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6400                                                 }
6401                                         }
6402                                 }
6403                         }
6404
6405                 }
6406                 channel = strtok(NULL," ");
6407         }
6408 }
6409
6410 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6411 {
6412         switch(token)
6413         {
6414                 // Y <TS>
6415                 // start netburst
6416                 case 'Y':
6417                         nb_start = time(NULL);
6418                         WriteOpers("Server %s is starting netburst.",source->name);
6419                 break;
6420                 // ?
6421                 // ping
6422                 case '?':
6423                         reply->SendPacket("!",udp_host,udp_port,MyKey);
6424                 break;
6425                 // ?
6426                 // pong
6427                 case '!':
6428                 break;
6429                 // *
6430                 // no operation
6431                 case '*':
6432                 break;
6433                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6434                 // introduce remote client
6435                 case 'N':
6436                         handle_N(token,params,source,reply,udp_host,udp_port);
6437                 break;
6438                 // t <NICK> <CHANNEL> :<TOPIC>
6439                 // change a channel topic
6440                 case 't':
6441                         handle_t(token,params,source,reply,udp_host,udp_port);
6442                 break;
6443                 // i <NICK> <CHANNEL>
6444                 // invite a user to a channel
6445                 case 'i':
6446                         handle_i(token,params,source,reply,udp_host,udp_port);
6447                 break;
6448                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6449                 // kick a user from a channel
6450                 case 'k':
6451                         handle_k(token,params,source,reply,udp_host,udp_port);
6452                 break;
6453                 // n <NICK> <NEWNICK>
6454                 // change nickname of client -- a server should only be able to
6455                 // change the nicknames of clients that reside on it unless
6456                 // they are ulined.
6457                 case 'n':
6458                         handle_n(token,params,source,reply,udp_host,udp_port);
6459                 break;
6460                 // J <NICK> <CHANLIST>
6461                 // Join user to channel list, merge channel permissions
6462                 case 'J':
6463                         handle_J(token,params,source,reply,udp_host,udp_port);
6464                 break;
6465                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6466                 // change channel topic (netburst only)
6467                 case 'T':
6468                         handle_T(token,params,source,reply,udp_host,udp_port);
6469                 break;
6470                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6471                 // Server setting modes on an object
6472                 case 'M':
6473                         handle_M(token,params,source,reply,udp_host,udp_port);
6474                 break;
6475                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6476                 // User setting modes on an object
6477                 case 'm':
6478                         handle_m(token,params,source,reply,udp_host,udp_port);
6479                 break;
6480                 // P <SOURCE> <TARGET> :<TEXT>
6481                 // Send a private/channel message
6482                 case 'P':
6483                         handle_P(token,params,source,reply,udp_host,udp_port);
6484                 break;
6485                 // V <SOURCE> <TARGET> :<TEXT>
6486                 // Send a private/channel notice
6487                 case 'V':
6488                         handle_V(token,params,source,reply,udp_host,udp_port);
6489                 break;
6490                 // L <SOURCE> <CHANNEL> :<REASON>
6491                 // User parting a channel
6492                 case 'L':
6493                         handle_L(token,params,source,reply,udp_host,udp_port);
6494                 break;
6495                 // Q <SOURCE> :<REASON>
6496                 // user quitting
6497                 case 'Q':
6498                         handle_Q(token,params,source,reply,udp_host,udp_port);
6499                 break;
6500                 // F <TS>
6501                 // end netburst
6502                 case 'F':
6503                         WriteOpers("Server %s has completed netburst. (%d secs)",source->name,time(NULL)-nb_start);
6504                         handle_F(token,params,source,reply,udp_host,udp_port);
6505                 break;
6506                 // anything else
6507                 default:
6508                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6509                 break;
6510         }
6511 }
6512
6513
6514 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
6515 {
6516         char response[10240];
6517         char token = udp_msg[0];
6518         char* params = udp_msg + 2;
6519         char finalparam[1024];
6520         strcpy(finalparam," :xxxx");
6521         if (strstr(params," :")) {
6522                 strncpy(finalparam,strstr(params," :"),1024);
6523         }
6524         if (token == 'S') {
6525                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6526                 char* servername = strtok(params," ");
6527                 char* password = strtok(NULL," ");
6528                 char* serverdesc = finalparam+2;
6529                 WriteOpers("CONNECT from %s (%s)",servername,udp_host);
6530
6531
6532                 char Link_ServerName[1024];
6533                 char Link_IPAddr[1024];
6534                 char Link_Port[1024];
6535                 char Link_Pass[1024];
6536                 char Link_SendPass[1024];
6537                 int LinkPort = 0;
6538
6539                 // search for a corresponding <link> block in the config files
6540                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6541                 {
6542                         ConfValue("link","name",i,Link_ServerName,&config_f);
6543                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6544                         ConfValue("link","port",i,Link_Port,&config_f);
6545                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6546                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6547                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6548                         LinkPort = atoi(Link_Port);
6549                         if (!strcasecmp(Link_ServerName,servername)) {
6550                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6551                                         if (LinkPort == udp_port) {
6552                                                 // we have a matching link line -
6553                                                 // send a 'diminutive' server message back...
6554                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6555                                                 serv->SendPacket(response,udp_host,udp_port,0);
6556                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
6557                                                 for (int j = 0; j < 255; j++) {
6558                                                         if (servers[j] == NULL) {
6559                                                                 servers[j] = new serverrec;
6560                                                                 strcpy(servers[j]->internal_addr,udp_host);
6561                                                                 strcpy(servers[j]->name,servername);
6562                                                                 strcpy(servers[j]->description,serverdesc);
6563                                                                 servers[j]->internal_port = udp_port;
6564                                                                 // create a server record for this server
6565                                                                 WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6566                                                                 snprintf(response,10240,"O %d",MyKey);
6567                                                                 serv->SendPacket(response,udp_host,udp_port,0);
6568                                                                 return;
6569                                                         }
6570                                                 }
6571                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
6572                                                 return;
6573                                         }
6574                                         else {
6575                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6576                                         }
6577                                 }
6578                                 else {
6579                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6580                                 }
6581                         }
6582                         else {
6583                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6584                         }
6585                 }
6586                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6587                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6588                 return;
6589         }
6590         else
6591         if (token == 'O') {
6592                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
6593                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
6594                 // array, which is only added by an 'S' packet or BeginLink().
6595                 for (int i = 0; i < 255; i++) {
6596                         if (servers[i] != NULL) {
6597                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
6598                                         servers[i]->key = atoi(params);
6599                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
6600                                         DoSync(serv,udp_host,udp_port,MyKey);
6601                                         return;
6602                                 }
6603                         }
6604                 }
6605                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
6606         }
6607         else
6608         if (token == 's') {
6609                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6610                 char* servername = strtok(params," ");
6611                 char* password = strtok(NULL," ");
6612                 char* serverdesc = finalparam+2;
6613
6614                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6615                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6616                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6617                 // a connect, so put out an oper alert!
6618
6619
6620
6621
6622                 // for now, just accept all, we'll fix that later.
6623                 WriteOpers("%s accepted our link credentials ",servername);
6624
6625                 char Link_ServerName[1024];
6626                 char Link_IPAddr[1024];
6627                 char Link_Port[1024];
6628                 char Link_Pass[1024];
6629                 char Link_SendPass[1024];
6630                 int LinkPort = 0;
6631
6632                 // search for a corresponding <link> block in the config files
6633                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6634                 {
6635                         ConfValue("link","name",i,Link_ServerName,&config_f);
6636                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6637                         ConfValue("link","port",i,Link_Port,&config_f);
6638                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6639                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6640                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6641                         LinkPort = atoi(Link_Port);
6642                         if (!strcasecmp(Link_ServerName,servername)) {
6643                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6644                                         if (LinkPort == udp_port) {
6645                                                 // matching link at this end too, we're all done!
6646                                                 // at this point we must begin key exchange and insert this
6647                                                 // server into our 'active' table.
6648                                                 for (int j = 0; j < 255; j++) {
6649                                                         if (servers[j] != NULL) {
6650                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6651                                                                         strcpy(servers[j]->description,serverdesc);
6652                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6653                                                                         snprintf(response,10240,"O %d",MyKey);
6654                                                                         serv->SendPacket(response,udp_host,udp_port,0);
6655                                                                         return;
6656                                                                 }
6657                                                         }
6658                                                 }
6659                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6660                                                 return;
6661
6662                                         }
6663                                         else {
6664                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6665                                         }
6666                                 }
6667                                 else {
6668                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6669                                 }
6670                         }
6671                         else {
6672                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6673                         }
6674                 }
6675                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6676                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6677                 return;
6678         }
6679         else
6680         if (token == 'E') {
6681                 char* error_message = finalparam+2;
6682                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6683                 // remove this server from any lists
6684                 for (int j = 0; j < 255; j++) {
6685                         if (servers[j] != NULL) {
6686                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6687                                         delete servers[j];
6688                                         return;
6689                                 }
6690                         }
6691                 }
6692                 return;
6693         }
6694         else {
6695
6696                 serverrec* source_server = NULL;
6697
6698                 for (int j = 0; j < 255; j++) {
6699                         if (servers[j] != NULL) {
6700                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6701                                         if (servers[j]->key == theirkey) {
6702                                                 // found a valid key for this server, can process restricted stuff here
6703                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
6704                                                 return;
6705                                         }
6706                                 }
6707                         }
6708                 }
6709
6710                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
6711         }
6712 }
6713
6714 int reap_counter = 0;
6715
6716 int InspIRCd(void)
6717 {
6718         struct sockaddr_in client, server;
6719         char addrs[MAXBUF][255];
6720         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6721         socklen_t length;
6722         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6723         int selectResult = 0, selectResult2 = 0;
6724         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6725         char resolvedHost[MAXBUF];
6726         fd_set selectFds;
6727         struct timeval tv;
6728
6729         log_file = fopen("ircd.log","a+");
6730         if (!log_file)
6731         {
6732                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6733                 Exit(ERROR);
6734         }
6735
6736         log(DEBUG,"InspIRCd: startup: begin");
6737         log(DEBUG,"$Id$");
6738         if (geteuid() == 0)
6739         {
6740                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6741                 Exit(ERROR);
6742                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6743         }
6744         SetupCommandTable();
6745         log(DEBUG,"InspIRCd: startup: default command table set up");
6746
6747         ReadConfig();
6748         if (strcmp(DieValue,""))
6749         {
6750                 printf("WARNING: %s\n\n",DieValue);
6751                 exit(0);
6752         }
6753         log(DEBUG,"InspIRCd: startup: read config");
6754
6755         int count2 = 0, count3 = 0;
6756
6757         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6758         {
6759                 ConfValue("bind","port",count,configToken,&config_f);
6760                 ConfValue("bind","address",count,Addr,&config_f);
6761                 ConfValue("bind","type",count,Type,&config_f);
6762                 if (!strcmp(Type,"servers"))
6763                 {
6764                         char Default[MAXBUF];
6765                         strcpy(Default,"no");
6766                         ConfValue("bind","default",count,Default,&config_f);
6767                         if (strchr(Default,'y'))
6768                         {
6769                                 defaultRoute = count3;
6770                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6771                         }
6772                         me[count3] = new serverrec(ServerName,100L,false);
6773                         me[count3]->CreateListener(Addr,atoi(configToken));
6774                         count3++;
6775                 }
6776                 else
6777                 {
6778                         ports[count2] = atoi(configToken);
6779                         strcpy(addrs[count2],Addr);
6780                         count2++;
6781                 }
6782                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6783         }
6784         portCount = count2;
6785         UDPportCount = count3;
6786
6787         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6788
6789         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6790
6791         printf("\n");
6792
6793         /* BugFix By Craig! :p */
6794         count = 0;
6795         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6796         {
6797                 char modfile[MAXBUF];
6798                 ConfValue("module","name",count2,configToken,&config_f);
6799                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6800                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6801                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6802                 /* If The File Doesnt exist, Trying to load it
6803                  * Will Segfault the IRCd.. So, check to see if
6804                  * it Exists, Before Proceeding. */
6805                 if (FileExists(modfile))
6806                 {
6807                         factory[count] = new ircd_module(modfile);
6808                         if (factory[count]->LastError())
6809                         {
6810                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6811                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6812                                 Exit(ERROR);
6813                         }
6814                         if (factory[count]->factory)
6815                         {
6816                                 modules[count] = factory[count]->factory->CreateModule();
6817                                 /* save the module and the module's classfactory, if
6818                                  * this isnt done, random crashes can occur :/ */
6819                                 module_names.push_back(modfile);
6820                         }
6821                         else
6822                         {
6823                                 log(DEBUG,"Unable to load %s",modfile);
6824                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6825                                 Exit(ERROR);
6826                         }
6827                         /* Increase the Count */
6828                         count++;
6829                 }
6830                 else
6831                 {
6832                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6833                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6834                 }
6835         }
6836         MODCOUNT = count - 1;
6837         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6838
6839         printf("\nInspIRCd is now running!\n");
6840
6841         startup_time = time(NULL);
6842
6843         if (nofork)
6844         {
6845                 log(VERBOSE,"Not forking as -nofork was specified");
6846         }
6847         else
6848         {
6849                 if (DaemonSeed() == ERROR)
6850                 {
6851                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6852                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6853                         Exit(ERROR);
6854                 }
6855         }
6856
6857
6858         /* setup select call */
6859         FD_ZERO(&selectFds);
6860         log(DEBUG,"InspIRCd: startup: zero selects");
6861         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
6862
6863         for (count = 0; count < portCount; count++)
6864         {
6865                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
6866                 {
6867                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
6868                         return(ERROR);
6869                 }
6870                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
6871                 {
6872                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
6873                 }
6874                 else    /* well we at least bound to one socket so we'll continue */
6875                 {
6876                         boundPortCount++;
6877                 }
6878         }
6879
6880         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
6881
6882         /* if we didn't bind to anything then abort */
6883         if (boundPortCount == 0)
6884         {
6885                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
6886                 return (ERROR);
6887         }
6888
6889         length = sizeof (client);
6890         int flip_flop = 0, udp_port = 0;
6891         char udp_msg[MAXBUF], udp_host[MAXBUF];
6892
6893         /* main loop, this never returns */
6894         for (;;)
6895         {
6896
6897                 fd_set sfd;
6898                 timeval tval;
6899                 FD_ZERO(&sfd);
6900
6901                 user_hash::iterator count2 = clientlist.begin();
6902
6903                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
6904                 // them in a list, then reap the list every second or so.
6905                 if (reap_counter>5000)
6906                 {
6907                         if (fd_reap.size() > 0)
6908                         {
6909                                 for( int n = 0; n < fd_reap.size(); n++)
6910                                 {
6911                                         Blocking(fd_reap[n]);
6912                                         close(fd_reap[n]);
6913                                         NonBlocking(fd_reap[n]);
6914                                 }
6915                         }
6916                         fd_reap.clear();
6917                         reap_counter=0;
6918                 }
6919
6920
6921                 for (int x = 0; x != UDPportCount; x++)
6922                 {
6923                         long theirkey = 0;
6924                         if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
6925                         {
6926                                 if (strlen(udp_msg)<1) {
6927                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
6928                         }
6929                         else
6930                         {
6931                                 FOREACH_MOD OnPacketReceive(udp_msg);
6932                                 // Packets must go back via the route they arrived on :)
6933                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
6934                                 // link packets can manipulate the usertable so beware of
6935                                 // any loops here watching the user or channels hash
6936                                 log(DEBUG,"Sync: exit 3");
6937                                 goto label;
6938                         }
6939                 }
6940         }
6941
6942
6943         while (count2 != clientlist.end())
6944         {
6945                 char data[10240];
6946                 tval.tv_usec = tval.tv_sec = 0;
6947                 FD_ZERO(&sfd);
6948                 int total_in_this_set = 0;
6949
6950                 user_hash::iterator xcount = count2;
6951                 user_hash::iterator endingiter = count2;
6952
6953                 if (!count2->second) break;
6954
6955                 if (count2->second)
6956                 if (count2->second->fd != 0)
6957                 {
6958                         // assemble up to 64 sockets into an fd_set
6959                         // to implement a pooling mechanism.
6960                         //
6961                         // This should be up to 64x faster than the
6962                         // old implementation.
6963                         while (total_in_this_set < 64)
6964                         {
6965                                 if (count2 != clientlist.end())
6966                                 {
6967                                         // we don't check the state of remote users.
6968                                         if (count2->second->fd > 0)
6969                                         {
6970                                                 FD_SET (count2->second->fd, &sfd);
6971
6972                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
6973                                                 // their connection class.
6974                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
6975                                                 {
6976                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
6977                                                         kill_link(count2->second,"Registration timeout");
6978                                                         goto label;
6979                                                 }
6980                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
6981                                                 {
6982                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
6983                                                         {
6984                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
6985                                                                 kill_link(count2->second,"Ping timeout");
6986                                                                 goto label;
6987                                                         }
6988                                                         Write(count2->second->fd,"PING :%s",ServerName);
6989                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
6990                                                         count2->second->lastping = 0;
6991                                                         count2->second->nping = time(NULL)+120;
6992                                                 }
6993                                         }
6994                                         count2++;
6995                                         total_in_this_set++;
6996                                 }
6997                                 else break;
6998                         }
6999
7000                         endingiter = count2;
7001                         count2 = xcount; // roll back to where we were
7002
7003                         int v = 0;
7004
7005                         tval.tv_usec = 0;
7006                         tval.tv_sec = 0;
7007                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
7008
7009                         // now loop through all of the items in this pool if any are waiting
7010                         //if (selectResult2 > 0)
7011                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
7012                         {
7013                                 result = EAGAIN;
7014                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
7015                                 {
7016                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
7017                                         memset(data, 0, 10240);
7018                                         result = read(count2a->second->fd, data, 10240);
7019
7020                                         if (result)
7021                                         {
7022                                                 log(DEBUG,"Read %d characters from socket",result);
7023                                                 userrec* current = count2a->second;
7024                                                 int currfd = current->fd;
7025                                                 char* l = strtok(data,"\n");
7026                                                 int floodlines = 0;
7027                                                 while (l)
7028                                                 {
7029                                                         floodlines++;
7030                                                         if ((floodlines > current->flood) && (current->flood != 0))
7031                                                         {
7032                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7033                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7034                                                                 kill_link(current,"Excess flood");
7035                                                                 goto label;
7036                                                         }
7037                                                         char sanitized[NetBufferSize];
7038                                                         memset(sanitized, 0, NetBufferSize);
7039                                                         int ptt = 0;
7040                                                         for (int pt = 0; pt < strlen(l); pt++)
7041                                                         {
7042                                                                 if (l[pt] != '\r')
7043                                                                 {
7044                                                                         sanitized[ptt++] = l[pt];
7045                                                                 }
7046                                                         }
7047                                                         sanitized[ptt] = '\0';
7048                                                         if (strlen(sanitized))
7049                                                         {
7050
7051
7052                                                                 // we're gonna re-scan to check if the nick is gone, after every
7053                                                                 // command - if it has, we're gonna bail
7054                                                                 bool find_again = false;
7055                                                                 process_buffer(sanitized,current);
7056
7057                                                                 // look for the user's record in case it's changed
7058                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
7059                                                                 {
7060                                                                         if (c2->second->fd == currfd)
7061                                                                         {
7062                                                                                 // found again, update pointer
7063                                                                                 current == c2->second;
7064                                                                                 find_again = true;
7065                                                                                 break;
7066                                                                         }
7067                                                                 }
7068                                                                 if (!find_again)
7069                                                                         goto label;
7070
7071                                                         }
7072                                                         l = strtok(NULL,"\n");
7073                                                 }
7074                                                 goto label;
7075                                         }
7076
7077                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
7078                                         {
7079                                                 log(DEBUG,"killing: %s",count2a->second->nick);
7080                                                 kill_link(count2a->second,strerror(errno));
7081                                                 goto label;
7082                                         }
7083                                 }
7084                                 // result EAGAIN means nothing read
7085                                 if (result == EAGAIN)
7086                                 {
7087                                 }
7088                                 else
7089                                 if (result == 0)
7090                                 {
7091                                         if (count2->second)
7092                                         {
7093                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
7094                                                 kill_link(count2a->second,"Client exited");
7095                                                 // must bail here? kill_link removes the hash, corrupting the iterator
7096                                                 log(DEBUG,"Bailing from client exit");
7097                                                 goto label;
7098                                         }
7099                                 }
7100                                 else if (result > 0)
7101                                 {
7102                                 }
7103                         }
7104                 }
7105                 for (int q = 0; q < total_in_this_set; q++)
7106                 {
7107                         // there is no iterator += operator :(
7108                         //if (count2 != clientlist.end())
7109                         //{
7110                                 count2++;
7111                         //}
7112                 }
7113         }
7114
7115         // set up select call
7116         for (count = 0; count < boundPortCount; count++)
7117         {
7118                 FD_SET (openSockfd[count], &selectFds);
7119         }
7120
7121         /* added timeout! select was waiting forever... wank... :/ */
7122         tv.tv_usec = 0;
7123
7124         flip_flop++;
7125         reap_counter++;
7126         if (flip_flop > 20)
7127         {
7128                 tv.tv_usec = 1;
7129                 flip_flop = 0;
7130         }
7131
7132         tv.tv_sec = 0;
7133         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
7134
7135         /* select is reporting a waiting socket. Poll them all to find out which */
7136         if (selectResult > 0)
7137         {
7138                 char target[MAXBUF], resolved[MAXBUF];
7139                 for (count = 0; count < boundPortCount; count++)
7140                 {
7141                         if (FD_ISSET (openSockfd[count], &selectFds))
7142                         {
7143                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
7144
7145                                 address_cache::iterator iter = IP.find(client.sin_addr);
7146                                 bool iscached = false;
7147                                 if (iter == IP.end())
7148                                 {
7149                                         /* ip isn't in cache, add it */
7150                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7151                                         if(CleanAndResolve(resolved, target) != TRUE)
7152                                         {
7153                                                 strncpy(resolved,target,MAXBUF);
7154                                         }
7155                                         /* hostname now in 'target' */
7156                                         IP[client.sin_addr] = new string(resolved);
7157                                         /* hostname in cache */
7158                                 }
7159                                 else
7160                                 {
7161                                         /* found ip (cached) */
7162                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7163                                         iscached = true;
7164                                 }
7165
7166                                 if (incomingSockfd < 0)
7167                                 {
7168                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7169                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7170                                 }
7171                                 else
7172                                 {
7173                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7174                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7175                                 }
7176                                 goto label;
7177                         }
7178                 }
7179         }
7180         label:
7181         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7182 }
7183 /* not reached */
7184 close (incomingSockfd);
7185 }
7186