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",ServerName,chan->name, outstr);
2622                                         for (int j = 0; j < 255; j++)
2623                                         {
2624                                                 if (servers[j] != NULL)
2625                                                 {
2626                                                         if (strcmp(servers[j]->name,ServerName))
2627                                                         {
2628                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2629                                                                 {
2630                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2631                                                                         log(DEBUG,"Sent M token");
2632                                                                 }
2633                                                         }
2634                                                 }
2635                                         }
2636                                 }
2637
2638                         }
2639                         else
2640                         {
2641                                 if (!silent)
2642                                 {
2643                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2644                                         // M token for a usermode must go to all servers
2645                                         char buffer[MAXBUF];
2646                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2647                                         for (int j = 0; j < 255; j++)
2648                                         {
2649                                                 if (servers[j] != NULL)
2650                                                 {
2651                                                         if (strcmp(servers[j]->name,ServerName))
2652                                                         {
2653                                                                 if (ChanAnyOnThisServer(chan,servers[j]->name))
2654                                                                 {
2655                                                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2656                                                                         log(DEBUG,"Sent m token");
2657                                                                 }
2658                                                         }
2659                                                 }
2660                                         }
2661                                 }
2662                         }
2663                 }
2664         }
2665 }
2666
2667 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2668
2669 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2670 {
2671         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2672         // RFC1459 specified modes
2673         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2674         {
2675                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2676                 return true;
2677         }
2678
2679         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2680         if ((strchr(sourcemodes,'o')) && (!adding))
2681         {
2682                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2683                 return true;
2684         }
2685         else if (umode == 'o')
2686         {
2687                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2688                 return false;
2689         }
2690
2691         // process any module-defined modes that need oper
2692         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2693         {
2694                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2695                 return true;
2696         }
2697         else
2698         if (ModeDefined(umode,MT_CLIENT))
2699         {
2700                 // process any module-defined modes that don't need oper
2701                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2702                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2703                 {
2704                         // no, this mode needs oper, and this user 'aint got what it takes!
2705                         return false;
2706                 }
2707                 return true;
2708         }
2709
2710         // anything else - return false.
2711         log(DEBUG,"umode %c not known by any ruleset",umode);
2712         return false;
2713 }
2714
2715 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2716 {
2717         userrec* s2;
2718         bool faked = false;
2719         if (!source)
2720         {
2721                 s2 = new userrec;
2722                 strncpy(s2->nick,ServerName,NICKMAX);
2723                 strcpy(s2->modes,"o");
2724                 s2->fd = -1;
2725                 source = s2;
2726                 faked = true;
2727         }
2728         string_list p;
2729         p.clear();
2730         if (ModeDefined(umode,MT_CLIENT))
2731         {
2732                 for (int i = 0; i <= MODCOUNT; i++)
2733                 {
2734                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2735                         {
2736                                 log(DEBUG,"Module claims umode %c",umode);
2737                                 return true;
2738                         }
2739                 }
2740                 log(DEBUG,"No module claims umode %c",umode);
2741                 if (faked)
2742                 {
2743                         delete s2;
2744                         source = NULL;
2745                 }
2746                 return false;
2747         }
2748         else
2749         {
2750                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2751                 if (faked)
2752                 {
2753                         delete s2;
2754                         source = NULL;
2755                 }
2756                 return false;
2757         }
2758 }
2759
2760 void handle_mode(char **parameters, int pcnt, userrec *user)
2761 {
2762         chanrec* Ptr;
2763         userrec* dest;
2764         int can_change,i;
2765         int direction = 1;
2766         char outpars[MAXBUF];
2767
2768         dest = Find(parameters[0]);
2769
2770         if (!user)
2771         {
2772                 return;
2773         }
2774
2775         if ((dest) && (pcnt == 1))
2776         {
2777                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2778                 return;
2779         }
2780
2781         if ((dest) && (pcnt > 1))
2782         {
2783                 char dmodes[MAXBUF];
2784                 strncpy(dmodes,dest->modes,MAXBUF);
2785                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2786
2787                 can_change = 0;
2788                 if (user != dest)
2789                 {
2790                         if (strchr(user->modes,'o'))
2791                         {
2792                                 can_change = 1;
2793                         }
2794                 }
2795                 else
2796                 {
2797                         can_change = 1;
2798                 }
2799                 if (!can_change)
2800                 {
2801                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2802                         return;
2803                 }
2804
2805                 strcpy(outpars,"+");
2806                 direction = 1;
2807
2808                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2809                         return;
2810
2811                 for (int i = 0; i < strlen(parameters[1]); i++)
2812                 {
2813                         if (parameters[1][i] == '+')
2814                         {
2815                                 if (direction != 1)
2816                                 {
2817                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2818                                         {
2819                                                 outpars[strlen(outpars)-1] = '+';
2820                                         }
2821                                         else
2822                                         {
2823                                                 strcat(outpars,"+");
2824                                         }
2825                                 }
2826                                 direction = 1;
2827                         }
2828                         else
2829                         if (parameters[1][i] == '-')
2830                         {
2831                                 if (direction != 0)
2832                                 {
2833                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2834                                         {
2835                                                 outpars[strlen(outpars)-1] = '-';
2836                                         }
2837                                         else
2838                                         {
2839                                                 strcat(outpars,"-");
2840                                         }
2841                                 }
2842                                 direction = 0;
2843                         }
2844                         else
2845                         {
2846                                 can_change = 0;
2847                                 if (strchr(user->modes,'o'))
2848                                 {
2849                                         can_change = 1;
2850                                 }
2851                                 else
2852                                 {
2853                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2854                                         {
2855                                                 can_change = 1;
2856                                         }
2857                                 }
2858                                 if (can_change)
2859                                 {
2860                                         if (direction == 1)
2861                                         {
2862                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2863                                                 {
2864                                                         char umode = parameters[1][i];
2865                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2866                                                         {
2867                                                                 dmodes[strlen(dmodes)+1]='\0';
2868                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2869                                                                 outpars[strlen(outpars)+1]='\0';
2870                                                                 outpars[strlen(outpars)] = parameters[1][i];
2871                                                         }
2872                                                 }
2873                                         }
2874                                         else
2875                                         {
2876                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2877                                                 {
2878                                                         char umode = parameters[1][i];
2879                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2880                                                         {
2881                                                                 int q = 0;
2882                                                                 char temp[MAXBUF];
2883                                                                 char moo[MAXBUF];
2884
2885                                                                 outpars[strlen(outpars)+1]='\0';
2886                                                                 outpars[strlen(outpars)] = parameters[1][i];
2887
2888                                                                 strcpy(temp,"");
2889                                                                 for (q = 0; q < strlen(dmodes); q++)
2890                                                                 {
2891                                                                         if (dmodes[q] != parameters[1][i])
2892                                                                         {
2893                                                                                 moo[0] = dmodes[q];
2894                                                                                 moo[1] = '\0';
2895                                                                                 strcat(temp,moo);
2896                                                                         }
2897                                                                 }
2898                                                                 strcpy(dmodes,temp);
2899                                                         }
2900                                                 }
2901                                         }
2902                                 }
2903                         }
2904                 }
2905                 if (strlen(outpars))
2906                 {
2907                         char b[MAXBUF];
2908                         strcpy(b,"");
2909                         int z = 0;
2910                         int i = 0;
2911                         while (i < strlen (outpars))
2912                         {
2913                                 b[z++] = outpars[i++];
2914                                 b[z] = '\0';
2915                                 if (i<strlen(outpars)-1)
2916                                 {
2917                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2918                                         {
2919                                                 // someones playing silly buggers and trying
2920                                                 // to put a +- or -+ into the line...
2921                                                 i++;
2922                                         }
2923                                 }
2924                                 if (i == strlen(outpars)-1)
2925                                 {
2926                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2927                                         {
2928                                                 i++;
2929                                         }
2930                                 }
2931                         }
2932
2933                         z = strlen(b)-1;
2934                         if ((b[z] == '-') || (b[z] == '+'))
2935                                 b[z] == '\0';
2936
2937                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
2938                                 return;
2939
2940                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
2941
2942                         // M token for a usermode must go to all servers
2943                         char buffer[MAXBUF];
2944                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
2945                         for (int j = 0; j < 255; j++)
2946                         {
2947                                 if (servers[j] != NULL)
2948                                 {
2949                                         if (strcmp(servers[j]->name,ServerName))
2950                                         {
2951                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
2952                                                 log(DEBUG,"Sent m token");
2953                                         }
2954                                 }
2955                         }
2956
2957                         if (strlen(dmodes)>MAXMODES)
2958                         {
2959                                 dmodes[MAXMODES-1] = '\0';
2960                         }
2961                         log(DEBUG,"Stripped mode line");
2962                         log(DEBUG,"Line dest is now %s",dmodes);
2963                         strncpy(dest->modes,dmodes,MAXMODES);
2964
2965                 }
2966
2967                 return;
2968         }
2969
2970         Ptr = FindChan(parameters[0]);
2971         if (Ptr)
2972         {
2973                 if (pcnt == 1)
2974                 {
2975                         /* just /modes #channel */
2976                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
2977                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
2978                         return;
2979                 }
2980                 else
2981                 if (pcnt == 2)
2982                 {
2983                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
2984                         {
2985
2986                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
2987                                 {
2988                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
2989                                 }
2990                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
2991                         }
2992                 }
2993
2994                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
2995                 {
2996                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
2997                         return;
2998                 }
2999
3000                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
3001         }
3002         else
3003         {
3004                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3005         }
3006 }
3007
3008
3009
3010
3011 void server_mode(char **parameters, int pcnt, userrec *user)
3012 {
3013         chanrec* Ptr;
3014         userrec* dest;
3015         int can_change,i;
3016         int direction = 1;
3017         char outpars[MAXBUF];
3018
3019         dest = Find(parameters[0]);
3020
3021         // fix: ChroNiCk found this - we cant use this as debug if its null!
3022         if (dest)
3023         {
3024                 log(DEBUG,"server_mode on %s",dest->nick);
3025         }
3026
3027         if ((dest) && (pcnt > 1))
3028         {
3029                 log(DEBUG,"params > 1");
3030
3031                 char dmodes[MAXBUF];
3032                 strncpy(dmodes,dest->modes,MAXBUF);
3033
3034                 strcpy(outpars,"+");
3035                 direction = 1;
3036
3037                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3038                         return;
3039
3040                 for (int i = 0; i < strlen(parameters[1]); i++)
3041                 {
3042                         if (parameters[1][i] == '+')
3043                         {
3044                                 if (direction != 1)
3045                                 {
3046                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3047                                         {
3048                                                 outpars[strlen(outpars)-1] = '+';
3049                                         }
3050                                         else
3051                                         {
3052                                                 strcat(outpars,"+");
3053                                         }
3054                                 }
3055                                 direction = 1;
3056                         }
3057                         else
3058                         if (parameters[1][i] == '-')
3059                         {
3060                                 if (direction != 0)
3061                                 {
3062                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3063                                         {
3064                                                 outpars[strlen(outpars)-1] = '-';
3065                                         }
3066                                         else
3067                                         {
3068                                                 strcat(outpars,"-");
3069                                         }
3070                                 }
3071                                 direction = 0;
3072                         }
3073                         else
3074                         {
3075                                 log(DEBUG,"begin mode processing entry");
3076                                 can_change = 1;
3077                                 if (can_change)
3078                                 {
3079                                         if (direction == 1)
3080                                         {
3081                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3082                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3083                                                 {
3084                                                         char umode = parameters[1][i];
3085                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3086                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3087                                                         {
3088                                                                 dmodes[strlen(dmodes)+1]='\0';
3089                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3090                                                                 outpars[strlen(outpars)+1]='\0';
3091                                                                 outpars[strlen(outpars)] = parameters[1][i];
3092                                                         }
3093                                                 }
3094                                         }
3095                                         else
3096                                         {
3097                                                 // can only remove a mode they already have
3098                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3099                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3100                                                 {
3101                                                         char umode = parameters[1][i];
3102                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3103                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3104                                                         {
3105                                                                 int q = 0;
3106                                                                 char temp[MAXBUF];
3107                                                                 char moo[MAXBUF];
3108
3109                                                                 outpars[strlen(outpars)+1]='\0';
3110                                                                 outpars[strlen(outpars)] = parameters[1][i];
3111
3112                                                                 strcpy(temp,"");
3113                                                                 for (q = 0; q < strlen(dmodes); q++)
3114                                                                 {
3115                                                                         if (dmodes[q] != parameters[1][i])
3116                                                                         {
3117                                                                                 moo[0] = dmodes[q];
3118                                                                                 moo[1] = '\0';
3119                                                                                 strcat(temp,moo);
3120                                                                         }
3121                                                                 }
3122                                                                 strcpy(dmodes,temp);
3123                                                         }
3124                                                 }
3125                                         }
3126                                 }
3127                         }
3128                 }
3129                 if (strlen(outpars))
3130                 {
3131                         char b[MAXBUF];
3132                         strcpy(b,"");
3133                         int z = 0;
3134                         int i = 0;
3135                         while (i < strlen (outpars))
3136                         {
3137                                 b[z++] = outpars[i++];
3138                                 b[z] = '\0';
3139                                 if (i<strlen(outpars)-1)
3140                                 {
3141                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3142                                         {
3143                                                 // someones playing silly buggers and trying
3144                                                 // to put a +- or -+ into the line...
3145                                                 i++;
3146                                         }
3147                                 }
3148                                 if (i == strlen(outpars)-1)
3149                                 {
3150                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3151                                         {
3152                                                 i++;
3153                                         }
3154                                 }
3155                         }
3156
3157                         z = strlen(b)-1;
3158                         if ((b[z] == '-') || (b[z] == '+'))
3159                                 b[z] == '\0';
3160
3161                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3162                                 return;
3163
3164                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3165
3166                         // M token for a usermode must go to all servers
3167                         char buffer[MAXBUF];
3168                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3169                         for (int j = 0; j < 255; j++)
3170                         {
3171                                 if (servers[j] != NULL)
3172                                 {
3173                                         if (strcmp(servers[j]->name,ServerName))
3174                                         {
3175                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3176                                                 log(DEBUG,"Sent m token");
3177                                         }
3178                                 }
3179                         }
3180
3181                         if (strlen(dmodes)>MAXMODES)
3182                         {
3183                                 dmodes[MAXMODES-1] = '\0';
3184                         }
3185                         log(DEBUG,"Stripped mode line");
3186                         log(DEBUG,"Line dest is now %s",dmodes);
3187                         strncpy(dest->modes,dmodes,MAXMODES);
3188
3189                 }
3190
3191                 return;
3192         }
3193
3194         Ptr = FindChan(parameters[0]);
3195         if (Ptr)
3196         {
3197                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3198         }
3199         else
3200         {
3201                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3202         }
3203 }
3204
3205
3206
3207 void merge_mode(char **parameters, int pcnt)
3208 {
3209         chanrec* Ptr;
3210         userrec* dest;
3211         int can_change,i;
3212         int direction = 1;
3213         char outpars[MAXBUF];
3214
3215         dest = Find(parameters[0]);
3216
3217         // fix: ChroNiCk found this - we cant use this as debug if its null!
3218         if (dest)
3219         {
3220                 log(DEBUG,"merge_mode on %s",dest->nick);
3221         }
3222
3223         if ((dest) && (pcnt > 1))
3224         {
3225                 log(DEBUG,"params > 1");
3226
3227                 char dmodes[MAXBUF];
3228                 strncpy(dmodes,dest->modes,MAXBUF);
3229
3230                 strcpy(outpars,"+");
3231                 direction = 1;
3232
3233                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3234                         return;
3235
3236                 for (int i = 0; i < strlen(parameters[1]); i++)
3237                 {
3238                         if (parameters[1][i] == '+')
3239                         {
3240                                 if (direction != 1)
3241                                 {
3242                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3243                                         {
3244                                                 outpars[strlen(outpars)-1] = '+';
3245                                         }
3246                                         else
3247                                         {
3248                                                 strcat(outpars,"+");
3249                                         }
3250                                 }
3251                                 direction = 1;
3252                         }
3253                         else
3254                         if (parameters[1][i] == '-')
3255                         {
3256                                 if (direction != 0)
3257                                 {
3258                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3259                                         {
3260                                                 outpars[strlen(outpars)-1] = '-';
3261                                         }
3262                                         else
3263                                         {
3264                                                 strcat(outpars,"-");
3265                                         }
3266                                 }
3267                                 direction = 0;
3268                         }
3269                         else
3270                         {
3271                                 log(DEBUG,"begin mode processing entry");
3272                                 can_change = 1;
3273                                 if (can_change)
3274                                 {
3275                                         if (direction == 1)
3276                                         {
3277                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3278                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3279                                                 {
3280                                                         char umode = parameters[1][i];
3281                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3282                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3283                                                         {
3284                                                                 dmodes[strlen(dmodes)+1]='\0';
3285                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3286                                                                 outpars[strlen(outpars)+1]='\0';
3287                                                                 outpars[strlen(outpars)] = parameters[1][i];
3288                                                         }
3289                                                 }
3290                                         }
3291                                         else
3292                                         {
3293                                                 // can only remove a mode they already have
3294                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3295                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3296                                                 {
3297                                                         char umode = parameters[1][i];
3298                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3299                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3300                                                         {
3301                                                                 int q = 0;
3302                                                                 char temp[MAXBUF];
3303                                                                 char moo[MAXBUF];
3304
3305                                                                 outpars[strlen(outpars)+1]='\0';
3306                                                                 outpars[strlen(outpars)] = parameters[1][i];
3307
3308                                                                 strcpy(temp,"");
3309                                                                 for (q = 0; q < strlen(dmodes); q++)
3310                                                                 {
3311                                                                         if (dmodes[q] != parameters[1][i])
3312                                                                         {
3313                                                                                 moo[0] = dmodes[q];
3314                                                                                 moo[1] = '\0';
3315                                                                                 strcat(temp,moo);
3316                                                                         }
3317                                                                 }
3318                                                                 strcpy(dmodes,temp);
3319                                                         }
3320                                                 }
3321                                         }
3322                                 }
3323                         }
3324                 }
3325                 if (strlen(outpars))
3326                 {
3327                         char b[MAXBUF];
3328                         strcpy(b,"");
3329                         int z = 0;
3330                         int i = 0;
3331                         while (i < strlen (outpars))
3332                         {
3333                                 b[z++] = outpars[i++];
3334                                 b[z] = '\0';
3335                                 if (i<strlen(outpars)-1)
3336                                 {
3337                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3338                                         {
3339                                                 // someones playing silly buggers and trying
3340                                                 // to put a +- or -+ into the line...
3341                                                 i++;
3342                                         }
3343                                 }
3344                                 if (i == strlen(outpars)-1)
3345                                 {
3346                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3347                                         {
3348                                                 i++;
3349                                         }
3350                                 }
3351                         }
3352
3353                         z = strlen(b)-1;
3354                         if ((b[z] == '-') || (b[z] == '+'))
3355                                 b[z] == '\0';
3356
3357                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3358                                 return;
3359
3360                         if (strlen(dmodes)>MAXMODES)
3361                         {
3362                                 dmodes[MAXMODES-1] = '\0';
3363                         }
3364                         log(DEBUG,"Stripped mode line");
3365                         log(DEBUG,"Line dest is now %s",dmodes);
3366                         strncpy(dest->modes,dmodes,MAXMODES);
3367
3368                 }
3369
3370                 return;
3371         }
3372
3373         Ptr = FindChan(parameters[0]);
3374         if (Ptr)
3375         {
3376                 userrec s2;
3377                 strncpy(s2.nick,ServerName,NICKMAX);
3378                 strcpy(s2.modes,"o");
3379                 s2.fd = -1;
3380                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3381         }
3382 }
3383
3384
3385 void merge_mode2(char **parameters, int pcnt, userrec* user)
3386 {
3387         chanrec* Ptr;
3388         userrec* dest;
3389         int can_change,i;
3390         int direction = 1;
3391         char outpars[MAXBUF];
3392
3393         dest = Find(parameters[0]);
3394
3395         // fix: ChroNiCk found this - we cant use this as debug if its null!
3396         if (dest)
3397         {
3398                 log(DEBUG,"merge_mode on %s",dest->nick);
3399         }
3400
3401         if ((dest) && (pcnt > 1))
3402         {
3403                 log(DEBUG,"params > 1");
3404
3405                 char dmodes[MAXBUF];
3406                 strncpy(dmodes,dest->modes,MAXBUF);
3407
3408                 strcpy(outpars,"+");
3409                 direction = 1;
3410
3411                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3412                         return;
3413
3414                 for (int i = 0; i < strlen(parameters[1]); i++)
3415                 {
3416                         if (parameters[1][i] == '+')
3417                         {
3418                                 if (direction != 1)
3419                                 {
3420                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3421                                         {
3422                                                 outpars[strlen(outpars)-1] = '+';
3423                                         }
3424                                         else
3425                                         {
3426                                                 strcat(outpars,"+");
3427                                         }
3428                                 }
3429                                 direction = 1;
3430                         }
3431                         else
3432                         if (parameters[1][i] == '-')
3433                         {
3434                                 if (direction != 0)
3435                                 {
3436                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3437                                         {
3438                                                 outpars[strlen(outpars)-1] = '-';
3439                                         }
3440                                         else
3441                                         {
3442                                                 strcat(outpars,"-");
3443                                         }
3444                                 }
3445                                 direction = 0;
3446                         }
3447                         else
3448                         {
3449                                 log(DEBUG,"begin mode processing entry");
3450                                 can_change = 1;
3451                                 if (can_change)
3452                                 {
3453                                         if (direction == 1)
3454                                         {
3455                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3456                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3457                                                 {
3458                                                         char umode = parameters[1][i];
3459                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3460                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3461                                                         {
3462                                                                 dmodes[strlen(dmodes)+1]='\0';
3463                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3464                                                                 outpars[strlen(outpars)+1]='\0';
3465                                                                 outpars[strlen(outpars)] = parameters[1][i];
3466                                                         }
3467                                                 }
3468                                         }
3469                                         else
3470                                         {
3471                                                 // can only remove a mode they already have
3472                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3473                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3474                                                 {
3475                                                         char umode = parameters[1][i];
3476                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3477                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3478                                                         {
3479                                                                 int q = 0;
3480                                                                 char temp[MAXBUF];
3481                                                                 char moo[MAXBUF];
3482
3483                                                                 outpars[strlen(outpars)+1]='\0';
3484                                                                 outpars[strlen(outpars)] = parameters[1][i];
3485
3486                                                                 strcpy(temp,"");
3487                                                                 for (q = 0; q < strlen(dmodes); q++)
3488                                                                 {
3489                                                                         if (dmodes[q] != parameters[1][i])
3490                                                                         {
3491                                                                                 moo[0] = dmodes[q];
3492                                                                                 moo[1] = '\0';
3493                                                                                 strcat(temp,moo);
3494                                                                         }
3495                                                                 }
3496                                                                 strcpy(dmodes,temp);
3497                                                         }
3498                                                 }
3499                                         }
3500                                 }
3501                         }
3502                 }
3503                 if (strlen(outpars))
3504                 {
3505                         char b[MAXBUF];
3506                         strcpy(b,"");
3507                         int z = 0;
3508                         int i = 0;
3509                         while (i < strlen (outpars))
3510                         {
3511                                 b[z++] = outpars[i++];
3512                                 b[z] = '\0';
3513                                 if (i<strlen(outpars)-1)
3514                                 {
3515                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3516                                         {
3517                                                 // someones playing silly buggers and trying
3518                                                 // to put a +- or -+ into the line...
3519                                                 i++;
3520                                         }
3521                                 }
3522                                 if (i == strlen(outpars)-1)
3523                                 {
3524                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3525                                         {
3526                                                 i++;
3527                                         }
3528                                 }
3529                         }
3530
3531                         z = strlen(b)-1;
3532                         if ((b[z] == '-') || (b[z] == '+'))
3533                                 b[z] == '\0';
3534
3535                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3536                                 return;
3537
3538                         WriteTo(user,dest,"MODE :%s",b);
3539
3540                         if (strlen(dmodes)>MAXMODES)
3541                         {
3542                                 dmodes[MAXMODES-1] = '\0';
3543                         }
3544                         log(DEBUG,"Stripped mode line");
3545                         log(DEBUG,"Line dest is now %s",dmodes);
3546                         strncpy(dest->modes,dmodes,MAXMODES);
3547
3548                 }
3549
3550                 return;
3551         }
3552
3553         Ptr = FindChan(parameters[0]);
3554         if (Ptr)
3555         {
3556                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3557                 {
3558                         return;
3559                 }
3560
3561                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3562         }
3563 }
3564
3565
3566
3567 /* This function pokes and hacks at a parameter list like the following:
3568  *
3569  * PART #winbot, #darkgalaxy :m00!
3570  *
3571  * to turn it into a series of individual calls like this:
3572  *
3573  * PART #winbot :m00!
3574  * PART #darkgalaxy :m00!
3575  *
3576  * The seperate calls are sent to a callback function provided by the caller
3577  * (the caller will usually call itself recursively). The callback function
3578  * must be a command handler. Calling this function on a line with no list causes
3579  * no action to be taken. You must provide a starting and ending parameter number
3580  * where the range of the list can be found, useful if you have a terminating
3581  * parameter as above which is actually not part of the list, or parameters
3582  * before the actual list as well. This code is used by many functions which
3583  * can function as "one to list" (see the RFC) */
3584
3585 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3586 {
3587         char plist[MAXBUF];
3588         char *param;
3589         char *pars[32];
3590         char blog[32][MAXBUF];
3591         char blog2[32][MAXBUF];
3592         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3593         char keystr[MAXBUF];
3594         char moo[MAXBUF];
3595
3596         for (int i = 0; i <32; i++)
3597                 strcpy(blog[i],"");
3598
3599         for (int i = 0; i <32; i++)
3600                 strcpy(blog2[i],"");
3601
3602         strcpy(moo,"");
3603         for (int i = 0; i <10; i++)
3604         {
3605                 if (!parameters[i])
3606                 {
3607                         parameters[i] = moo;
3608                 }
3609         }
3610         if (joins)
3611         {
3612                 if (pcnt > 1) /* we have a key to copy */
3613                 {
3614                         strcpy(keystr,parameters[1]);
3615                 }
3616         }
3617
3618         if (!parameters[start])
3619         {
3620                 return 0;
3621         }
3622         if (!strchr(parameters[start],','))
3623         {
3624                 return 0;
3625         }
3626         strcpy(plist,"");
3627         for (int i = start; i <= end; i++)
3628         {
3629                 if (parameters[i])
3630                 {
3631                         strcat(plist,parameters[i]);
3632                 }
3633         }
3634
3635         j = 0;
3636         param = plist;
3637
3638         t = strlen(plist);
3639         for (int i = 0; i < t; i++)
3640         {
3641                 if (plist[i] == ',')
3642                 {
3643                         plist[i] = '\0';
3644                         strcpy(blog[j++],param);
3645                         param = plist+i+1;
3646                         if (j>20)
3647                         {
3648                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3649                                 return 1;
3650                         }
3651                 }
3652         }
3653         strcpy(blog[j++],param);
3654         total = j;
3655
3656         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3657         {
3658                 strcat(keystr,",");
3659         }
3660
3661         if ((joins) && (keystr))
3662         {
3663                 if (strchr(keystr,','))
3664                 {
3665                         j = 0;
3666                         param = keystr;
3667                         t2 = strlen(keystr);
3668                         for (int i = 0; i < t2; i++)
3669                         {
3670                                 if (keystr[i] == ',')
3671                                 {
3672                                         keystr[i] = '\0';
3673                                         strcpy(blog2[j++],param);
3674                                         param = keystr+i+1;
3675                                 }
3676                         }
3677                         strcpy(blog2[j++],param);
3678                         total2 = j;
3679                 }
3680         }
3681
3682         for (j = 0; j < total; j++)
3683         {
3684                 if (blog[j])
3685                 {
3686                         pars[0] = blog[j];
3687                 }
3688                 for (q = end; q < pcnt-1; q++)
3689                 {
3690                         if (parameters[q+1])
3691                         {
3692                                 pars[q-end+1] = parameters[q+1];
3693                         }
3694                 }
3695                 if ((joins) && (parameters[1]))
3696                 {
3697                         if (pcnt > 1)
3698                         {
3699                                 pars[1] = blog2[j];
3700                         }
3701                         else
3702                         {
3703                                 pars[1] = NULL;
3704                         }
3705                 }
3706                 /* repeatedly call the function with the hacked parameter list */
3707                 if ((joins) && (pcnt > 1))
3708                 {
3709                         if (pars[1])
3710                         {
3711                                 // pars[1] already set up and containing key from blog2[j]
3712                                 fn(pars,2,u);
3713                         }
3714                         else
3715                         {
3716                                 pars[1] = parameters[1];
3717                                 fn(pars,2,u);
3718                         }
3719                 }
3720                 else
3721                 {
3722                         fn(pars,pcnt-(end-start),u);
3723                 }
3724         }
3725
3726         return 1;
3727 }
3728
3729
3730 void handle_join(char **parameters, int pcnt, userrec *user)
3731 {
3732         chanrec* Ptr;
3733         int i = 0;
3734
3735         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3736                 return;
3737         if (parameters[0][0] == '#')
3738         {
3739                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3740         }
3741 }
3742
3743
3744 void handle_part(char **parameters, int pcnt, userrec *user)
3745 {
3746         chanrec* Ptr;
3747
3748         if (pcnt > 1)
3749         {
3750                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3751                         return;
3752                 del_channel(user,parameters[0],parameters[1],false);
3753         }
3754         else
3755         {
3756                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3757                         return;
3758                 del_channel(user,parameters[0],NULL,false);
3759         }
3760 }
3761
3762 void handle_kick(char **parameters, int pcnt, userrec *user)
3763 {
3764         chanrec* Ptr = FindChan(parameters[0]);
3765         userrec* u   = Find(parameters[1]);
3766
3767         if ((!u) || (!Ptr))
3768         {
3769                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3770                 return;
3771         }
3772
3773         if (!has_channel(u,Ptr))
3774         {
3775                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3776                 return;
3777         }
3778
3779         char reason[MAXBUF];
3780
3781         if (pcnt > 2)
3782         {
3783                 strncpy(reason,parameters[2],MAXBUF);
3784                 if (strlen(reason)>MAXKICK)
3785                 {
3786                         reason[MAXKICK-1] = '\0';
3787                 }
3788
3789                 kick_channel(user,u,Ptr,reason);
3790         }
3791         else
3792         {
3793                 strcpy(reason,user->nick);
3794                 kick_channel(user,u,Ptr,reason);
3795         }
3796
3797         // this must be propogated so that channel membership is kept in step network-wide
3798
3799         char buffer[MAXBUF];
3800         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3801         for (int j = 0; j < 255; j++)
3802         {
3803                 if (servers[j] != NULL)
3804                 {
3805                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3806                         log(DEBUG,"Sent k token");
3807                 }
3808         }
3809
3810 }
3811
3812
3813 void handle_die(char **parameters, int pcnt, userrec *user)
3814 {
3815         log(DEBUG,"die: %s",user->nick);
3816         if (!strcmp(parameters[0],diepass))
3817         {
3818                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3819                 sleep(DieDelay);
3820                 Exit(ERROR);
3821         }
3822         else
3823         {
3824                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3825         }
3826 }
3827
3828 void handle_restart(char **parameters, int pcnt, userrec *user)
3829 {
3830         log(DEBUG,"restart: %s",user->nick);
3831         if (!strcmp(parameters[0],restartpass))
3832         {
3833                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3834                 sleep(DieDelay);
3835                 Exit(ERROR);
3836                 /* Will finish this later when i can be arsed :) */
3837         }
3838         else
3839         {
3840                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3841         }
3842 }
3843
3844
3845 void kill_link(userrec *user,const char* r)
3846 {
3847         user_hash::iterator iter = clientlist.find(user->nick);
3848
3849         char reason[MAXBUF];
3850
3851         strncpy(reason,r,MAXBUF);
3852
3853         if (strlen(reason)>MAXQUIT)
3854         {
3855                 reason[MAXQUIT-1] = '\0';
3856         }
3857
3858         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3859         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3860         log(DEBUG,"closing fd %d",user->fd);
3861
3862         /* bugfix, cant close() a nonblocking socket (sux!) */
3863         if (user->registered == 7) {
3864                 FOREACH_MOD OnUserQuit(user);
3865                 WriteCommonExcept(user,"QUIT :%s",reason);
3866
3867                 // Q token must go to ALL servers!!!
3868                 char buffer[MAXBUF];
3869                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3870                 for (int j = 0; j < 255; j++)
3871                 {
3872                         if (servers[j] != NULL)
3873                         {
3874                                 if (strcmp(servers[j]->name,ServerName))
3875                                 {
3876                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
3877                                         log(DEBUG,"Sent Q token");
3878                                 }
3879                         }
3880                 }
3881         }
3882
3883         /* push the socket on a stack of sockets due to be closed at the next opportunity
3884          * 'Client exited' is an exception to this as it means the client side has already
3885          * closed the socket, we don't need to do it.
3886          */
3887         fd_reap.push_back(user->fd);
3888
3889         bool do_purge = false;
3890
3891         if (user->registered == 7) {
3892                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3893                 AddWhoWas(user);
3894         }
3895
3896         if (iter != clientlist.end())
3897         {
3898                 log(DEBUG,"deleting user hash value %d",iter->second);
3899                 if ((iter->second) && (user->registered == 7)) {
3900                         delete iter->second;
3901                 }
3902                 clientlist.erase(iter);
3903         }
3904
3905         if (user->registered == 7) {
3906                 purge_empty_chans();
3907         }
3908 }
3909
3910
3911 void handle_kill(char **parameters, int pcnt, userrec *user)
3912 {
3913         userrec *u = Find(parameters[0]);
3914         char killreason[MAXBUF];
3915
3916         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3917         if (u)
3918         {
3919                 WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3920                 // :Brain!brain@NetAdmin.chatspike.net KILL [Brain] :homer!NetAdmin.chatspike.net!Brain (test kill)
3921                 WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3922                 sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3923                 kill_link(u,killreason);
3924         }
3925         else
3926         {
3927                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3928         }
3929 }
3930
3931 void handle_summon(char **parameters, int pcnt, userrec *user)
3932 {
3933         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3934 }
3935
3936 void handle_users(char **parameters, int pcnt, userrec *user)
3937 {
3938         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3939 }
3940
3941
3942 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3943
3944 char* Passwd(userrec *user)
3945 {
3946         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3947         {
3948                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
3949                 {
3950                         return i->pass;
3951                 }
3952         }
3953         return "";
3954 }
3955
3956 bool IsDenied(userrec *user)
3957 {
3958         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3959         {
3960                 if (match(user->host,i->host) && (i->type == CC_DENY))
3961                 {
3962                         return true;
3963                 }
3964         }
3965         return false;
3966 }
3967
3968
3969
3970 void handle_pass(char **parameters, int pcnt, userrec *user)
3971 {
3972         // Check to make sure they havnt registered -- Fix by FCS
3973         if (user->registered == 7)
3974         {
3975                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
3976                 return;
3977         }
3978         if (!strcasecmp(parameters[0],Passwd(user)))
3979         {
3980                 user->haspassed = true;
3981         }
3982 }
3983
3984 void handle_invite(char **parameters, int pcnt, userrec *user)
3985 {
3986         userrec* u = Find(parameters[0]);
3987         chanrec* c = FindChan(parameters[1]);
3988
3989         if ((!c) || (!u))
3990         {
3991                 if (!c)
3992                 {
3993                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3994                 }
3995                 else
3996                 {
3997                         if (c->inviteonly)
3998                         {
3999                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
4000                         }
4001                 }
4002
4003                 return;
4004         }
4005
4006         if (c->inviteonly)
4007         {
4008                 if (cstatus(user,c) < STATUS_HOP)
4009                 {
4010                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
4011                         return;
4012                 }
4013         }
4014         if (has_channel(u,c))
4015         {
4016                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4017                 return;
4018         }
4019         if (!has_channel(user,c))
4020         {
4021                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4022                 return;
4023         }
4024         u->InviteTo(c->name);
4025         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4026         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4027 }
4028
4029 void handle_topic(char **parameters, int pcnt, userrec *user)
4030 {
4031         chanrec* Ptr;
4032
4033         if (pcnt == 1)
4034         {
4035                 if (strlen(parameters[0]) <= CHANMAX)
4036                 {
4037                         Ptr = FindChan(parameters[0]);
4038                         if (Ptr)
4039                         {
4040                                 if (Ptr->topicset)
4041                                 {
4042                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4043                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4044                                 }
4045                                 else
4046                                 {
4047                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4048                                 }
4049                         }
4050                         else
4051                         {
4052                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4053                         }
4054                 }
4055                 return;
4056         }
4057         else if (pcnt>1)
4058         {
4059                 if (strlen(parameters[0]) <= CHANMAX)
4060                 {
4061                         Ptr = FindChan(parameters[0]);
4062                         if (Ptr)
4063                         {
4064                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4065                                 {
4066                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4067                                         return;
4068                                 }
4069
4070                                 char topic[MAXBUF];
4071                                 strncpy(topic,parameters[1],MAXBUF);
4072                                 if (strlen(topic)>MAXTOPIC)
4073                                 {
4074                                         topic[MAXTOPIC-1] = '\0';
4075                                 }
4076
4077                                 strcpy(Ptr->topic,topic);
4078                                 strcpy(Ptr->setby,user->nick);
4079                                 Ptr->topicset = time(NULL);
4080                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4081                         }
4082                         else
4083                         {
4084                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4085                         }
4086                 }
4087         }
4088 }
4089
4090 /* sends out an error notice to all connected clients (not to be used
4091  * lightly!) */
4092
4093 void send_error(char *s)
4094 {
4095         log(DEBUG,"send_error: %s",s);
4096         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4097         {
4098                 if (isnick(i->second->nick))
4099                 {
4100                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4101                 }
4102                 else
4103                 {
4104                         // fix - unregistered connections receive ERROR, not NOTICE
4105                         Write(i->second->fd,"ERROR :%s",s);
4106                 }
4107         }
4108 }
4109
4110 void Error(int status)
4111 {
4112         signal (SIGALRM, SIG_IGN);
4113         signal (SIGPIPE, SIG_IGN);
4114         signal (SIGTERM, SIG_IGN);
4115         signal (SIGABRT, SIG_IGN);
4116         signal (SIGSEGV, SIG_IGN);
4117         signal (SIGURG, SIG_IGN);
4118         signal (SIGKILL, SIG_IGN);
4119         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4120         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4121         exit(status);
4122 }
4123
4124
4125 int main (int argc, char *argv[])
4126 {
4127         Start();
4128         log(DEBUG,"*** InspIRCd starting up!");
4129         if (!FileExists(CONFIG_FILE))
4130         {
4131                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4132                 log(DEBUG,"main: no config");
4133                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4134                 Exit(ERROR);
4135         }
4136         if (argc > 1) {
4137                 if (!strcmp(argv[1],"-nofork")) {
4138                         nofork = true;
4139                 }
4140         }
4141         if (InspIRCd() == ERROR)
4142         {
4143                 log(DEBUG,"main: daemon function bailed");
4144                 printf("ERROR: could not initialise. Shutting down.\n");
4145                 Exit(ERROR);
4146         }
4147         Exit(TRUE);
4148         return 0;
4149 }
4150
4151 template<typename T> inline string ConvToStr(const T &in)
4152 {
4153         stringstream tmp;
4154         if (!(tmp << in)) return string();
4155         return tmp.str();
4156 }
4157
4158 /* re-allocates a nick in the user_hash after they change nicknames,
4159  * returns a pointer to the new user as it may have moved */
4160
4161 userrec* ReHashNick(char* Old, char* New)
4162 {
4163         user_hash::iterator newnick;
4164         user_hash::iterator oldnick = clientlist.find(Old);
4165
4166         log(DEBUG,"ReHashNick: %s %s",Old,New);
4167
4168         if (!strcasecmp(Old,New))
4169         {
4170                 log(DEBUG,"old nick is new nick, skipping");
4171                 return oldnick->second;
4172         }
4173
4174         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4175
4176         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4177
4178         clientlist[New] = new userrec();
4179         clientlist[New] = oldnick->second;
4180         /*delete oldnick->second; */
4181         clientlist.erase(oldnick);
4182
4183         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4184
4185         return clientlist[New];
4186 }
4187
4188 /* adds or updates an entry in the whowas list */
4189 void AddWhoWas(userrec* u)
4190 {
4191         user_hash::iterator iter = whowas.find(u->nick);
4192         userrec *a = new userrec();
4193         strcpy(a->nick,u->nick);
4194         strcpy(a->ident,u->ident);
4195         strcpy(a->dhost,u->dhost);
4196         strcpy(a->host,u->host);
4197         strcpy(a->fullname,u->fullname);
4198         strcpy(a->server,u->server);
4199         a->signon = u->signon;
4200
4201         /* MAX_WHOWAS:   max number of /WHOWAS items
4202          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4203          *               can be replaced by a newer one
4204          */
4205
4206         if (iter == whowas.end())
4207         {
4208                 if (whowas.size() == WHOWAS_MAX)
4209                 {
4210                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4211                         {
4212                                 // 3600 seconds in an hour ;)
4213                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4214                                 {
4215                                         delete i->second;
4216                                         i->second = a;
4217                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4218                                         return;
4219                                 }
4220                         }
4221                 }
4222                 else
4223                 {
4224                         log(DEBUG,"added fresh WHOWAS entry");
4225                         whowas[a->nick] = a;
4226                 }
4227         }
4228         else
4229         {
4230                 log(DEBUG,"updated WHOWAS entry");
4231                 delete iter->second;
4232                 iter->second = a;
4233         }
4234 }
4235
4236
4237 /* add a client connection to the sockets list */
4238 void AddClient(int socket, char* host, int port, bool iscached)
4239 {
4240         int i;
4241         int blocking = 1;
4242         char resolved[MAXBUF];
4243         string tempnick;
4244         char tn2[MAXBUF];
4245         user_hash::iterator iter;
4246
4247         tempnick = ConvToStr(socket) + "-unknown";
4248         sprintf(tn2,"%d-unknown",socket);
4249
4250         iter = clientlist.find(tempnick);
4251
4252         if (iter != clientlist.end()) return;
4253
4254         /*
4255          * It is OK to access the value here this way since we know
4256          * it exists, we just created it above.
4257          *
4258          * At NO other time should you access a value in a map or a
4259          * hash_map this way.
4260          */
4261         clientlist[tempnick] = new userrec();
4262
4263         NonBlocking(socket);
4264         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4265
4266         clientlist[tempnick]->fd = socket;
4267         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4268         strncpy(clientlist[tempnick]->host, host,160);
4269         strncpy(clientlist[tempnick]->dhost, host,160);
4270         strncpy(clientlist[tempnick]->server, ServerName,256);
4271         strncpy(clientlist[tempnick]->ident, "unknown",9);
4272         clientlist[tempnick]->registered = 0;
4273         clientlist[tempnick]->signon = time(NULL);
4274         clientlist[tempnick]->nping = time(NULL)+240;
4275         clientlist[tempnick]->lastping = 1;
4276         clientlist[tempnick]->port = port;
4277
4278         if (iscached)
4279         {
4280                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4281         }
4282         else
4283         {
4284                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4285         }
4286
4287         // set the registration timeout for this user
4288         unsigned long class_regtimeout = 90;
4289         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4290         {
4291                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4292                 {
4293                         class_regtimeout = (unsigned long)i->registration_timeout;
4294                         break;
4295                 }
4296         }
4297
4298         int class_flood = 0;
4299         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4300         {
4301                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4302                 {
4303                         class_flood = i->flood;
4304                         break;
4305                 }
4306         }
4307
4308         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4309         clientlist[tempnick]->flood = class_flood;
4310
4311         for (int i = 0; i < MAXCHANS; i++)
4312         {
4313                 clientlist[tempnick]->chans[i].channel = NULL;
4314                 clientlist[tempnick]->chans[i].uc_modes = 0;
4315         }
4316
4317         if (clientlist.size() == MAXCLIENTS)
4318                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4319 }
4320
4321 void handle_names(char **parameters, int pcnt, userrec *user)
4322 {
4323         chanrec* c;
4324
4325         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4326                 return;
4327         c = FindChan(parameters[0]);
4328         if (c)
4329         {
4330                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4331                 userlist(user,c);
4332                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4333         }
4334         else
4335         {
4336                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4337         }
4338 }
4339
4340 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4341 {
4342         userrec *dest;
4343         chanrec *chan;
4344
4345         user->idle_lastmsg = time(NULL);
4346
4347         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4348                 return;
4349         if (parameters[0][0] == '#')
4350         {
4351                 chan = FindChan(parameters[0]);
4352                 if (chan)
4353                 {
4354                         if ((chan->noexternal) && (!has_channel(user,chan)))
4355                         {
4356                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4357                                 return;
4358                         }
4359                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4360                         {
4361                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4362                                 return;
4363                         }
4364
4365                         int MOD_RESULT = 0;
4366
4367                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4368                         if (MOD_RESULT) {
4369                                 return;
4370                         }
4371
4372                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4373
4374                         // if any users of this channel are on remote servers, broadcast the packet
4375                         char buffer[MAXBUF];
4376                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4377                         for (int j = 0; j < 255; j++)
4378                         {
4379                                 if (servers[j] != NULL)
4380                                 {
4381                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4382                                         {
4383                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4384                                         }
4385                                 }
4386                         }
4387                 }
4388                 else
4389                 {
4390                         /* no such nick/channel */
4391                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4392                 }
4393                 return;
4394         }
4395
4396         dest = Find(parameters[0]);
4397         if (dest)
4398         {
4399                 if (strcmp(dest->awaymsg,""))
4400                 {
4401                         /* auto respond with aweh msg */
4402                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4403                 }
4404
4405                 int MOD_RESULT = 0;
4406
4407                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4408                 if (MOD_RESULT) {
4409                         return;
4410                 }
4411
4412
4413
4414                 if (!strcmp(dest->server,user->server))
4415                 {
4416                         // direct write, same server
4417                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4418                 }
4419                 else
4420                 {
4421                         for (int j = 0; j < 255; j++)
4422                         {
4423                                 if (servers[j] != NULL)
4424                                 {
4425                                         if (!strcasecmp(servers[j]->name,dest->server))
4426                                         {
4427                                                 // direct write, same server
4428                                                 char buffer[MAXBUF];
4429                                                 snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4430                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4431                                         }
4432                                 }
4433                         }
4434                 }
4435         }
4436         else
4437         {
4438                 /* no such nick/channel */
4439                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4440         }
4441 }
4442
4443 void handle_notice(char **parameters, int pcnt, userrec *user)
4444 {
4445         userrec *dest;
4446         chanrec *chan;
4447
4448         user->idle_lastmsg = time(NULL);
4449
4450         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4451                 return;
4452         if (parameters[0][0] == '#')
4453         {
4454                 chan = FindChan(parameters[0]);
4455                 if (chan)
4456                 {
4457                         if ((chan->noexternal) && (!has_channel(user,chan)))
4458                         {
4459                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4460                                 return;
4461                         }
4462                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4463                         {
4464                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4465                                 return;
4466                         }
4467
4468                         int MOD_RESULT = 0;
4469
4470                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4471                         if (MOD_RESULT) {
4472                                 return;
4473                         }
4474
4475                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4476
4477                         // if any users of this channel are on remote servers, broadcast the packet
4478                         char buffer[MAXBUF];
4479                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4480                         for (int j = 0; j < 255; j++)
4481                         {
4482                                 if (servers[j] != NULL)
4483                                 {
4484                                         if (ChanAnyOnThisServer(chan,servers[j]->name))
4485                                         {
4486                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4487                                         }
4488                                 }
4489                         }
4490                 }
4491                 else
4492                 {
4493                         /* no such nick/channel */
4494                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4495                 }
4496                 return;
4497         }
4498
4499         dest = Find(parameters[0]);
4500         if (dest)
4501         {
4502                 int MOD_RESULT = 0;
4503
4504                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4505                 if (MOD_RESULT) {
4506                         return;
4507                 }
4508
4509                 if (!strcmp(dest->server,user->server))
4510                 {
4511                         // direct write, same server
4512                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4513                 }
4514                 else
4515                 {
4516                         for (int j = 0; j < 255; j++)
4517                         {
4518                                 if (servers[j] != NULL)
4519                                 {
4520                                         if (!strcasecmp(servers[j]->name,dest->server))
4521                                         {
4522                                                 // direct write, same server
4523                                                 char buffer[MAXBUF];
4524                                                 snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4525                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4526                                         }
4527                                 }
4528                         }
4529                 }
4530         }
4531         else
4532         {
4533                 /* no such nick/channel */
4534                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4535         }
4536 }
4537
4538 char lst[MAXBUF];
4539
4540 char* chlist(userrec *user)
4541 {
4542         int i = 0;
4543         char cmp[MAXBUF];
4544
4545         log(DEBUG,"chlist: %s",user->nick);
4546         strcpy(lst,"");
4547         if (!user)
4548         {
4549                 return lst;
4550         }
4551         for (int i = 0; i != MAXCHANS; i++)
4552         {
4553                 if (user->chans[i].channel != NULL)
4554                 {
4555                         if (user->chans[i].channel->name)
4556                         {
4557                                 strcpy(cmp,user->chans[i].channel->name);
4558                                 strcat(cmp," ");
4559                                 if (!strstr(lst,cmp))
4560                                 {
4561                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4562                                         {
4563                                                 strcat(lst,cmode(user,user->chans[i].channel));
4564                                                 strcat(lst,user->chans[i].channel->name);
4565                                                 strcat(lst," ");
4566                                         }
4567                                 }
4568                         }
4569                 }
4570         }
4571         if (strlen(lst))
4572         {
4573                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4574         }
4575         return lst;
4576 }
4577
4578 void handle_info(char **parameters, int pcnt, userrec *user)
4579 {
4580         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4581         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4582         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4583         FOREACH_MOD OnInfo(user);
4584         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4585 }
4586
4587 void handle_time(char **parameters, int pcnt, userrec *user)
4588 {
4589         time_t rawtime;
4590         struct tm * timeinfo;
4591
4592         time ( &rawtime );
4593         timeinfo = localtime ( &rawtime );
4594         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4595
4596 }
4597
4598 void handle_whois(char **parameters, int pcnt, userrec *user)
4599 {
4600         userrec *dest;
4601         char *t;
4602
4603         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4604                 return;
4605         dest = Find(parameters[0]);
4606         if (dest)
4607         {
4608                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4609                 if (dest->registered == 7)
4610                 {
4611                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4612                         if ((user == dest) || (strchr(user->modes,'o')))
4613                         {
4614                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4615                         }
4616                         if (strcmp(chlist(dest),""))
4617                         {
4618                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4619                         }
4620                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4621                         if (strcmp(dest->awaymsg,""))
4622                         {
4623                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4624                         }
4625                         if (strchr(dest->modes,'o'))
4626                         {
4627                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4628                         }
4629                         FOREACH_MOD OnWhois(user,dest);
4630                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4631                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4632
4633                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4634                 }
4635                 else
4636                 {
4637                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4638                 }
4639         }
4640         else
4641         {
4642                 /* no such nick/channel */
4643                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4644         }
4645 }
4646
4647 void handle_quit(char **parameters, int pcnt, userrec *user)
4648 {
4649         user_hash::iterator iter = clientlist.find(user->nick);
4650         char* reason;
4651
4652         if (user->registered == 7)
4653         {
4654                 /* theres more to do here, but for now just close the socket */
4655                 if (pcnt == 1)
4656                 {
4657                         if (parameters[0][0] == ':')
4658                         {
4659                                 *parameters[0]++;
4660                         }
4661                         reason = parameters[0];
4662
4663                         if (strlen(reason)>MAXQUIT)
4664                         {
4665                                 reason[MAXQUIT-1] = '\0';
4666                         }
4667
4668                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4669                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4670                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4671
4672                         char buffer[MAXBUF];
4673                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4674                         for (int j = 0; j < 255; j++)
4675                         {
4676                                 if (servers[j] != NULL)
4677                                 {
4678                                         if (CommonOnThisServer(user,servers[j]->name))
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                 else
4687                 {
4688                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4689                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4690                         WriteCommonExcept(user,"QUIT :Client exited");
4691
4692                         char buffer[MAXBUF];
4693                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4694                         for (int j = 0; j < 255; j++)
4695                         {
4696                                 if (servers[j] != NULL)
4697                                 {
4698                                         if (CommonOnThisServer(user,servers[j]->name))
4699                                         {
4700                                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4701                                                 log(DEBUG,"Sent Q token");
4702                                         }
4703                                         }
4704                         }
4705                 }
4706                 FOREACH_MOD OnUserQuit(user);
4707                 AddWhoWas(user);
4708         }
4709
4710         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4711         fd_reap.push_back(user->fd);
4712
4713         if (iter != clientlist.end())
4714         {
4715                 clientlist.erase(iter);
4716                 log(DEBUG,"deleting user hash value %d",iter->second);
4717                 //if ((user) && (user->registered == 7)) {
4718                         //delete user;
4719                 //}
4720         }
4721
4722         if (user->registered == 7) {
4723                 purge_empty_chans();
4724         }
4725 }
4726
4727 void handle_who(char **parameters, int pcnt, userrec *user)
4728 {
4729         chanrec* Ptr = NULL;
4730
4731         /* theres more to do here, but for now just close the socket */
4732         if (pcnt == 1)
4733         {
4734                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4735                 {
4736                         if (user->chans[0].channel)
4737                         {
4738                                 Ptr = user->chans[0].channel;
4739                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4740                                 {
4741                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4742                                         {
4743                                                 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);
4744                                         }
4745                                 }
4746                         }
4747                         if (Ptr)
4748                         {
4749                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4750                         }
4751                         else
4752                         {
4753                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4754                         }
4755                         return;
4756                 }
4757                 if (parameters[0][0] == '#')
4758                 {
4759                         Ptr = FindChan(parameters[0]);
4760                         if (Ptr)
4761                         {
4762                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4763                                 {
4764                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4765                                         {
4766                                                 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);
4767                                         }
4768                                 }
4769                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4770                         }
4771                         else
4772                         {
4773                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4774                         }
4775                 }
4776                 else
4777                 {
4778                         userrec* u = Find(parameters[0]);
4779                         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);
4780                 }
4781         }
4782         if (pcnt == 2)
4783         {
4784                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4785                 {
4786                         Ptr = user->chans[0].channel;
4787                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4788                         {
4789                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4790                                 {
4791                                         if (strchr(i->second->modes,'o'))
4792                                         {
4793                                                 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);
4794                                         }
4795                                 }
4796                         }
4797                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4798                         return;
4799                 }
4800         }
4801 }
4802
4803 void handle_wallops(char **parameters, int pcnt, userrec *user)
4804 {
4805         WriteWallOps(user,"%s",parameters[0]);
4806 }
4807
4808 void handle_list(char **parameters, int pcnt, userrec *user)
4809 {
4810         chanrec* Ptr;
4811
4812         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4813         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4814         {
4815                 if ((!i->second->c_private) && (!i->second->secret))
4816                 {
4817                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4818                 }
4819         }
4820         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4821 }
4822
4823
4824 void handle_rehash(char **parameters, int pcnt, userrec *user)
4825 {
4826         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4827         ReadConfig();
4828         FOREACH_MOD OnRehash();
4829         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4830 }
4831
4832
4833 int usercnt(void)
4834 {
4835         return clientlist.size();
4836 }
4837
4838
4839 int usercount_invisible(void)
4840 {
4841         int c = 0;
4842
4843         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4844         {
4845                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4846         }
4847         return c;
4848 }
4849
4850 int usercount_opers(void)
4851 {
4852         int c = 0;
4853
4854         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4855         {
4856                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4857         }
4858         return c;
4859 }
4860
4861 int usercount_unknown(void)
4862 {
4863         int c = 0;
4864
4865         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4866         {
4867                 if ((i->second->fd) && (i->second->registered != 7))
4868                         c++;
4869         }
4870         return c;
4871 }
4872
4873 int chancount(void)
4874 {
4875         return chanlist.size();
4876 }
4877
4878 int servercount(void)
4879 {
4880         return 1;
4881 }
4882
4883 void handle_lusers(char **parameters, int pcnt, userrec *user)
4884 {
4885         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4886         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4887         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4888         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4889         WriteServ(user->fd,"254 %s :I have %d clients and 0 servers",user->nick,usercnt());
4890 }
4891
4892 void handle_admin(char **parameters, int pcnt, userrec *user)
4893 {
4894         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4895         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4896         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4897         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4898 }
4899
4900 void ShowMOTD(userrec *user)
4901 {
4902         if (!MOTD.size())
4903         {
4904                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4905                 return;
4906         }
4907         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4908         for (int i = 0; i != MOTD.size(); i++)
4909         {
4910                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4911         }
4912         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4913 }
4914
4915 void ShowRULES(userrec *user)
4916 {
4917         if (!RULES.size())
4918         {
4919                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4920                 return;
4921         }
4922         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4923         for (int i = 0; i != RULES.size(); i++)
4924         {
4925                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4926         }
4927         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4928 }
4929
4930 /* shows the message of the day, and any other on-logon stuff */
4931 void ConnectUser(userrec *user)
4932 {
4933         user->registered = 7;
4934         user->idle_lastmsg = time(NULL);
4935         log(DEBUG,"ConnectUser: %s",user->nick);
4936
4937         if (strcmp(Passwd(user),"") && (!user->haspassed))
4938         {
4939                 kill_link(user,"Invalid password");
4940                 return;
4941         }
4942         if (IsDenied(user))
4943         {
4944                 kill_link(user,"Unauthorised connection");
4945                 return;
4946         }
4947
4948         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
4949         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
4950         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
4951         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
4952         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
4953         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);
4954         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);
4955         ShowMOTD(user);
4956         FOREACH_MOD OnUserConnect(user);
4957         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
4958
4959         char buffer[MAXBUF];
4960         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);
4961         for (int j = 0; j < 255; j++)
4962         {
4963                 if (servers[j] != NULL)
4964                 {
4965                         if (strcmp(servers[j]->name,ServerName))
4966                         {
4967                                 me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
4968                                 log(DEBUG,"Sent N token");
4969                         }
4970                 }
4971         }
4972
4973 }
4974
4975 void handle_version(char **parameters, int pcnt, userrec *user)
4976 {
4977         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
4978 }
4979
4980 void handle_ping(char **parameters, int pcnt, userrec *user)
4981 {
4982         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
4983 }
4984
4985 void handle_pong(char **parameters, int pcnt, userrec *user)
4986 {
4987         // set the user as alive so they survive to next ping
4988         user->lastping = 1;
4989 }
4990
4991 void handle_motd(char **parameters, int pcnt, userrec *user)
4992 {
4993         ShowMOTD(user);
4994 }
4995
4996 void handle_rules(char **parameters, int pcnt, userrec *user)
4997 {
4998         ShowRULES(user);
4999 }
5000
5001 void handle_user(char **parameters, int pcnt, userrec *user)
5002 {
5003         if (user->registered < 3)
5004         {
5005                 if (isident(parameters[0]) == 0) {
5006                         // This kinda Sucks, According to the RFC thou, its either this,
5007                         // or "You have already registered" :p -- Craig
5008                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
5009                 }
5010                 else {
5011                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
5012                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
5013                         strncat(user->ident,parameters[0],IDENTMAX);
5014                         strncpy(user->fullname,parameters[3],128);
5015                         user->registered = (user->registered | 1);
5016                 }
5017         }
5018         else
5019         {
5020                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5021                 return;
5022         }
5023         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5024         if (user->registered == 3)
5025         {
5026                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5027                 ConnectUser(user);
5028         }
5029 }
5030
5031 void handle_userhost(char **parameters, int pcnt, userrec *user)
5032 {
5033         char Return[MAXBUF],junk[MAXBUF];
5034         sprintf(Return,"302 %s :",user->nick);
5035         for (int i = 0; i < pcnt; i++)
5036         {
5037                 userrec *u = Find(parameters[i]);
5038                 if (u)
5039                 {
5040                         if (strchr(u->modes,'o'))
5041                         {
5042                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5043                                 strcat(Return,junk);
5044                         }
5045                         else
5046                         {
5047                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5048                                 strcat(Return,junk);
5049                         }
5050                 }
5051         }
5052         WriteServ(user->fd,Return);
5053 }
5054
5055
5056 void handle_ison(char **parameters, int pcnt, userrec *user)
5057 {
5058         char Return[MAXBUF];
5059         sprintf(Return,"303 %s :",user->nick);
5060         for (int i = 0; i < pcnt; i++)
5061         {
5062                 userrec *u = Find(parameters[i]);
5063                 if (u)
5064                 {
5065                         strcat(Return,u->nick);
5066                         strcat(Return," ");
5067                 }
5068         }
5069         WriteServ(user->fd,Return);
5070 }
5071
5072
5073 void handle_away(char **parameters, int pcnt, userrec *user)
5074 {
5075         if (pcnt)
5076         {
5077                 strcpy(user->awaymsg,parameters[0]);
5078                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5079         }
5080         else
5081         {
5082                 strcpy(user->awaymsg,"");
5083                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5084         }
5085 }
5086
5087 void handle_whowas(char **parameters, int pcnt, userrec* user)
5088 {
5089         user_hash::iterator i = whowas.find(parameters[0]);
5090
5091         if (i == whowas.end())
5092         {
5093                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5094                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5095         }
5096         else
5097         {
5098                 time_t rawtime = i->second->signon;
5099                 tm *timeinfo;
5100                 char b[MAXBUF];
5101
5102                 timeinfo = localtime(&rawtime);
5103                 strcpy(b,asctime(timeinfo));
5104                 b[strlen(b)-1] = '\0';
5105
5106                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5107                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5108                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5109         }
5110
5111 }
5112
5113 void handle_trace(char **parameters, int pcnt, userrec *user)
5114 {
5115         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5116         {
5117                 if (i->second)
5118                 {
5119                         if (isnick(i->second->nick))
5120                         {
5121                                 if (strchr(i->second->modes,'o'))
5122                                 {
5123                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5124                                 }
5125                                 else
5126                                 {
5127                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5128                                 }
5129                         }
5130                         else
5131                         {
5132                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5133                         }
5134                 }
5135         }
5136 }
5137
5138 void handle_modules(char **parameters, int pcnt, userrec *user)
5139 {
5140         for (int i = 0; i < module_names.size(); i++)
5141         {
5142                         Version V = modules[i]->GetVersion();
5143                         char modulename[MAXBUF];
5144                         strncpy(modulename,module_names[i].c_str(),256);
5145                         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));
5146         }
5147 }
5148
5149 void handle_stats(char **parameters, int pcnt, userrec *user)
5150 {
5151         if (pcnt != 1)
5152         {
5153                 return;
5154         }
5155         if (strlen(parameters[0])>1)
5156         {
5157                 /* make the stats query 1 character long */
5158                 parameters[0][1] = '\0';
5159         }
5160
5161         /* stats m (list number of times each command has been used, plus bytecount) */
5162         if (!strcasecmp(parameters[0],"m"))
5163         {
5164                 for (int i = 0; i < cmdlist.size(); i++)
5165                 {
5166                         if (cmdlist[i].handler_function)
5167                         {
5168                                 if (cmdlist[i].use_count)
5169                                 {
5170                                         /* RPL_STATSCOMMANDS */
5171                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5172                                 }
5173                         }
5174                 }
5175
5176         }
5177
5178         /* stats z (debug and memory info) */
5179         if (!strcasecmp(parameters[0],"z"))
5180         {
5181                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5182                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5183                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5184                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5185                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5186                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5187                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5188                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5189         }
5190
5191         /* stats o */
5192         if (!strcasecmp(parameters[0],"o"))
5193         {
5194                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5195                 {
5196                         char LoginName[MAXBUF];
5197                         char HostName[MAXBUF];
5198                         char OperType[MAXBUF];
5199                         ConfValue("oper","name",i,LoginName,&config_f);
5200                         ConfValue("oper","host",i,HostName,&config_f);
5201                         ConfValue("oper","type",i,OperType,&config_f);
5202                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5203                 }
5204         }
5205
5206         /* stats l (show user I/O stats) */
5207         if (!strcasecmp(parameters[0],"l"))
5208         {
5209                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5210                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5211                 {
5212                         if (isnick(i->second->nick))
5213                         {
5214                                 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);
5215                         }
5216                         else
5217                         {
5218                                 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);
5219                         }
5220
5221                 }
5222         }
5223
5224         /* stats u (show server uptime) */
5225         if (!strcasecmp(parameters[0],"u"))
5226         {
5227                 time_t current_time = 0;
5228                 current_time = time(NULL);
5229                 time_t server_uptime = current_time - startup_time;
5230                 struct tm* stime;
5231                 stime = gmtime(&server_uptime);
5232                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5233                  * Craig suggested this, and it seemed a good idea so in it went */
5234                 if (stime->tm_year > 70)
5235                 {
5236                         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);
5237                 }
5238                 else
5239                 {
5240                         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);
5241                 }
5242         }
5243
5244         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5245         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5246
5247 }
5248
5249 void handle_connect(char **parameters, int pcnt, userrec *user)
5250 {
5251         char Link_ServerName[1024];
5252         char Link_IPAddr[1024];
5253         char Link_Port[1024];
5254         char Link_Pass[1024];
5255         int LinkPort;
5256         bool found = false;
5257
5258         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5259         {
5260                 ConfValue("link","name",i,Link_ServerName,&config_f);
5261                 ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5262                 ConfValue("link","port",i,Link_Port,&config_f);
5263                 ConfValue("link","sendpass",i,Link_Pass,&config_f);
5264                 log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5265                 LinkPort = atoi(Link_Port);
5266                 if (match(Link_ServerName,parameters[0])) {
5267                         found = true;
5268                 }
5269         }
5270
5271         if (!found) {
5272                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5273                 return;
5274         }
5275
5276         // TODO: Perform a check here to stop a server being linked twice!
5277
5278         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5279
5280         if (me[defaultRoute])
5281         {
5282
5283                 // at this point parameters[0] is an ip in a string.
5284                 // TODO: Look this up from the <link> blocks instead!
5285                 for (int j = 0; j < 255; j++) {
5286                         if (servers[j] == NULL) {
5287                                 servers[j] = new serverrec;
5288                                 strcpy(servers[j]->internal_addr,Link_IPAddr);
5289                                 servers[j]->internal_port = LinkPort;
5290                                 strcpy(servers[j]->name,Link_ServerName);
5291                                 log(DEBUG,"Allocated new serverrec");
5292                                 if (!me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass))
5293                                 {
5294                                         WriteServ(user->fd,"NOTICE %s :*** Failed to send auth packet to %s!",user->nick,Link_IPAddr);
5295                                 }
5296                                 return;
5297                         }
5298                 }
5299                 WriteServ(user->fd,"NOTICE %s :*** Failed to create server record for address %s!",user->nick,Link_IPAddr);
5300         }
5301         else
5302         {
5303                 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);
5304         }
5305 }
5306
5307 void handle_squit(char **parameters, int pcnt, userrec *user)
5308 {
5309         // send out an squit across the mesh and then clear the server list (for local squit)
5310 }
5311
5312 char islast(serverrec* s)
5313 {
5314         char c = '`';
5315         for (int j = 0; j < 255; j++)
5316         {
5317                 if (servers[j] != NULL)
5318                 {
5319                         c = '|';
5320                 }
5321                 if (servers[j] == s)
5322                 {
5323                         c = '`';
5324                 }
5325         }
5326         return c;
5327 }
5328
5329 void handle_links(char **parameters, int pcnt, userrec *user)
5330 {
5331         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5332         for (int j = 0; j < 255; j++)
5333         {
5334                 if (servers[j] != NULL)
5335                 {
5336                         WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,servers[j]->name,ServerName,servers[j]->description);
5337                 }
5338         }
5339         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5340 }
5341
5342 void handle_map(char **parameters, int pcnt, userrec *user)
5343 {
5344         WriteServ(user->fd,"006 %s :%s",user->nick,ServerName);
5345         for (int j = 0; j < 255; j++)
5346         {
5347                 if (servers[j] != NULL)
5348                 {
5349                         WriteServ(user->fd,"006 %s :%c-%s",user->nick,islast(servers[j]),servers[j]->name);
5350                 }
5351         }
5352         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5353 }
5354
5355
5356 void handle_oper(char **parameters, int pcnt, userrec *user)
5357 {
5358         char LoginName[MAXBUF];
5359         char Password[MAXBUF];
5360         char OperType[MAXBUF];
5361         char TypeName[MAXBUF];
5362         char Hostname[MAXBUF];
5363         int i,j;
5364
5365         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5366         {
5367                 ConfValue("oper","name",i,LoginName,&config_f);
5368                 ConfValue("oper","password",i,Password,&config_f);
5369                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5370                 {
5371                         /* correct oper credentials */
5372                         ConfValue("oper","type",i,OperType,&config_f);
5373                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5374                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5375                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5376                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5377                         {
5378                                 ConfValue("type","name",j,TypeName,&config_f);
5379                                 if (!strcmp(TypeName,OperType))
5380                                 {
5381                                         /* found this oper's opertype */
5382                                         ConfValue("type","host",j,Hostname,&config_f);
5383                                         strncpy(user->dhost,Hostname,256);
5384                                 }
5385                         }
5386                         if (!strchr(user->modes,'o'))
5387                         {
5388                                 strcat(user->modes,"o");
5389                         }
5390                         FOREACH_MOD OnOper(user);
5391                         return;
5392                 }
5393         }
5394         /* no such oper */
5395         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5396         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5397 }
5398
5399 void handle_nick(char **parameters, int pcnt, userrec *user)
5400 {
5401         if (pcnt < 1)
5402         {
5403                 log(DEBUG,"not enough params for handle_nick");
5404                 return;
5405         }
5406         if (!parameters[0])
5407         {
5408                 log(DEBUG,"invalid parameter passed to handle_nick");
5409                 return;
5410         }
5411         if (!strlen(parameters[0]))
5412         {
5413                 log(DEBUG,"zero length new nick passed to handle_nick");
5414                 return;
5415         }
5416         if (!user)
5417         {
5418                 log(DEBUG,"invalid user passed to handle_nick");
5419                 return;
5420         }
5421         if (!user->nick)
5422         {
5423                 log(DEBUG,"invalid old nick passed to handle_nick");
5424                 return;
5425         }
5426         if (!strcasecmp(user->nick,parameters[0]))
5427         {
5428                 log(DEBUG,"old nick is new nick, skipping");
5429                 return;
5430         }
5431         else
5432         {
5433                 if (strlen(parameters[0]) > 1)
5434                 {
5435                         if (parameters[0][0] == ':')
5436                         {
5437                                 *parameters[0]++;
5438                         }
5439                 }
5440                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5441                 {
5442                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5443                         return;
5444                 }
5445         }
5446         if (isnick(parameters[0]) == 0)
5447         {
5448                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5449                 return;
5450         }
5451
5452         if (user->registered == 7)
5453         {
5454                 WriteCommon(user,"NICK %s",parameters[0]);
5455
5456                 // Q token must go to ALL servers!!!
5457                 char buffer[MAXBUF];
5458                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5459                 for (int j = 0; j < 255; j++)
5460                 {
5461                         if (servers[j] != NULL)
5462                         {
5463                                 if (strcmp(servers[j]->name,ServerName))
5464                                 {
5465                                         me[defaultRoute]->SendPacket(buffer,servers[j]->internal_addr,servers[j]->internal_port,MyKey);
5466                                         log(DEBUG,"Sent n token");
5467                                 }
5468                         }
5469                 }
5470
5471         }
5472
5473         /* change the nick of the user in the users_hash */
5474         user = ReHashNick(user->nick, parameters[0]);
5475         /* actually change the nick within the record */
5476         if (!user) return;
5477         if (!user->nick) return;
5478
5479         strncpy(user->nick, parameters[0],NICKMAX);
5480
5481         log(DEBUG,"new nick set: %s",user->nick);
5482
5483         if (user->registered < 3)
5484                 user->registered = (user->registered | 2);
5485         if (user->registered == 3)
5486         {
5487                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5488                 ConnectUser(user);
5489         }
5490         log(DEBUG,"exit nickchange: %s",user->nick);
5491 }
5492
5493 void force_nickchange(userrec* user,const char* newnick)
5494 {
5495         char nick[MAXBUF];
5496         strcpy(nick,"");
5497
5498         if (user)
5499         {
5500                 if (newnick)
5501                 {
5502                         strncpy(nick,newnick,MAXBUF);
5503                 }
5504                 if (user->registered == 7)
5505                 {
5506                         char* pars[1];
5507                         pars[0] = nick;
5508                         handle_nick(pars,1,user);
5509                 }
5510         }
5511 }
5512
5513
5514 int process_parameters(char **command_p,char *parameters)
5515 {
5516         int i = 0;
5517         int j = 0;
5518         int q = 0;
5519         q = strlen(parameters);
5520         if (!q)
5521         {
5522                 /* no parameters, command_p invalid! */
5523                 return 0;
5524         }
5525         if (parameters[0] == ':')
5526         {
5527                 command_p[0] = parameters+1;
5528                 return 1;
5529         }
5530         if (q)
5531         {
5532                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5533                 {
5534                         /* only one parameter */
5535                         command_p[0] = parameters;
5536                         if (parameters[0] == ':')
5537                         {
5538                                 if (strchr(parameters,' ') != NULL)
5539                                 {
5540                                         command_p[0]++;
5541                                 }
5542                         }
5543                         return 1;
5544                 }
5545         }
5546         command_p[j++] = parameters;
5547         for (int i = 0; i <= q; i++)
5548         {
5549                 if (parameters[i] == ' ')
5550                 {
5551                         command_p[j++] = parameters+i+1;
5552                         parameters[i] = '\0';
5553                         if (command_p[j-1][0] == ':')
5554                         {
5555                                 *command_p[j-1]++; /* remove dodgy ":" */
5556                                 break;
5557                                 /* parameter like this marks end of the sequence */
5558                         }
5559                 }
5560         }
5561         return j; /* returns total number of items in the list */
5562 }
5563
5564 void process_command(userrec *user, char* cmd)
5565 {
5566         char *parameters;
5567         char *command;
5568         char *command_p[127];
5569         char p[MAXBUF], temp[MAXBUF];
5570         int i, j, items, cmd_found;
5571
5572         for (int i = 0; i < 127; i++)
5573                 command_p[i] = NULL;
5574
5575         if (!user)
5576         {
5577                 return;
5578         }
5579         if (!cmd)
5580         {
5581                 return;
5582         }
5583         if (!strcmp(cmd,""))
5584         {
5585                 return;
5586         }
5587
5588         int total_params = 0;
5589         if (strlen(cmd)>2)
5590         {
5591                 for (int q = 0; q < strlen(cmd)-1; q++)
5592                 {
5593                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5594                         {
5595                                 total_params++;
5596                                 // found a 'trailing', we dont count them after this.
5597                                 break;
5598                         }
5599                         if (cmd[q] == ' ')
5600                                 total_params++;
5601                 }
5602         }
5603
5604         // another phidjit bug...
5605         if (total_params > 126)
5606         {
5607                 kill_link(user,"Protocol violation (1)");
5608                 return;
5609         }
5610
5611         strcpy(temp,cmd);
5612
5613         string tmp = cmd;
5614         FOREACH_MOD OnServerRaw(tmp,true);
5615         const char* cmd2 = tmp.c_str();
5616         snprintf(cmd,512,"%s",cmd2);
5617
5618         if (!strchr(cmd,' '))
5619         {
5620                 /* no parameters, lets skip the formalities and not chop up
5621                  * the string */
5622                 log(DEBUG,"About to preprocess command with no params");
5623                 items = 0;
5624                 command_p[0] = NULL;
5625                 parameters = NULL;
5626                 for (int i = 0; i <= strlen(cmd); i++)
5627                 {
5628                         cmd[i] = toupper(cmd[i]);
5629                 }
5630                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5631                 command = cmd;
5632         }
5633         else
5634         {
5635                 strcpy(cmd,"");
5636                 j = 0;
5637                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5638                 for (int i = 0; i < strlen(temp); i++)
5639                 {
5640                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5641                         {
5642                                 cmd[j++] = temp[i];
5643                                 cmd[j] = 0;
5644                         }
5645                 }
5646                 /* split the full string into a command plus parameters */
5647                 parameters = p;
5648                 strcpy(p," ");
5649                 command = cmd;
5650                 if (strchr(cmd,' '))
5651                 {
5652                         for (int i = 0; i <= strlen(cmd); i++)
5653                         {
5654                                 /* capitalise the command ONLY, leave params intact */
5655                                 cmd[i] = toupper(cmd[i]);
5656                                 /* are we nearly there yet?! :P */
5657                                 if (cmd[i] == ' ')
5658                                 {
5659                                         command = cmd;
5660                                         parameters = cmd+i+1;
5661                                         cmd[i] = '\0';
5662                                         break;
5663                                 }
5664                         }
5665                 }
5666                 else
5667                 {
5668                         for (int i = 0; i <= strlen(cmd); i++)
5669                         {
5670                                 cmd[i] = toupper(cmd[i]);
5671                         }
5672                 }
5673
5674         }
5675         cmd_found = 0;
5676
5677         if (strlen(command)>MAXCOMMAND)
5678         {
5679                 kill_link(user,"Protocol violation (2)");
5680                 return;
5681         }
5682
5683         for (int x = 0; x < strlen(command); x++)
5684         {
5685                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5686                 {
5687                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5688                         {
5689                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5690                                 {
5691                                         kill_link(user,"Protocol violation (3)");
5692                                         return;
5693                                 }
5694                         }
5695                 }
5696         }
5697
5698         for (int i = 0; i != cmdlist.size(); i++)
5699         {
5700                 if (strcmp(cmdlist[i].command,""))
5701                 {
5702                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5703                         {
5704                                 log(DEBUG,"Found matching command");
5705
5706                                 if (parameters)
5707                                 {
5708                                         if (strcmp(parameters,""))
5709                                         {
5710                                                 items = process_parameters(command_p,parameters);
5711                                         }
5712                                         else
5713                                         {
5714                                                 items = 0;
5715                                                 command_p[0] = NULL;
5716                                         }
5717                                 }
5718                                 else
5719                                 {
5720                                         items = 0;
5721                                         command_p[0] = NULL;
5722                                 }
5723
5724                                 if (user)
5725                                 {
5726                                         log(DEBUG,"Processing command");
5727
5728                                         /* activity resets the ping pending timer */
5729                                         user->nping = time(NULL) + 120;
5730                                         if ((items) < cmdlist[i].min_params)
5731                                         {
5732                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5733                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5734                                                 return;
5735                                         }
5736                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5737                                         {
5738                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5739                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5740                                                 cmd_found = 1;
5741                                                 return;
5742                                         }
5743                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5744                                          * deny command! */
5745                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5746                                         {
5747                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5748                                                 {
5749                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5750                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5751                                                         return;
5752                                                 }
5753                                         }
5754                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5755                                         {
5756                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5757                                                 if (cmdlist[i].handler_function)
5758                                                 {
5759                                                         /* ikky /stats counters */
5760                                                         if (temp)
5761                                                         {
5762                                                                 if (user)
5763                                                                 {
5764                                                                         user->bytes_in += strlen(temp);
5765                                                                         user->cmds_in++;
5766                                                                 }
5767                                                                 cmdlist[i].use_count++;
5768                                                                 cmdlist[i].total_bytes+=strlen(temp);
5769                                                         }
5770
5771                                                         /* WARNING: nothing may come after the
5772                                                          * command handler call, as the handler
5773                                                          * may free the user structure! */
5774
5775                                                         cmdlist[i].handler_function(command_p,items,user);
5776                                                 }
5777                                                 return;
5778                                         }
5779                                         else
5780                                         {
5781                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5782                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5783                                                 return;
5784                                         }
5785                                 }
5786                                 cmd_found = 1;
5787                         }
5788                 }
5789         }
5790         if ((!cmd_found) && (user))
5791         {
5792                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5793                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5794         }
5795 }
5796
5797
5798 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5799 {
5800         command_t comm;
5801         /* create the command and push it onto the table */
5802         strcpy(comm.command,cmd);
5803         comm.handler_function = f;
5804         comm.flags_needed = flags;
5805         comm.min_params = minparams;
5806         comm.use_count = 0;
5807         comm.total_bytes = 0;
5808         cmdlist.push_back(comm);
5809         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5810 }
5811
5812 void SetupCommandTable(void)
5813 {
5814         createcommand("USER",handle_user,0,4);
5815         createcommand("NICK",handle_nick,0,1);
5816         createcommand("QUIT",handle_quit,0,0);
5817         createcommand("VERSION",handle_version,0,0);
5818         createcommand("PING",handle_ping,0,1);
5819         createcommand("PONG",handle_pong,0,1);
5820         createcommand("ADMIN",handle_admin,0,0);
5821         createcommand("PRIVMSG",handle_privmsg,0,2);
5822         createcommand("INFO",handle_info,0,0);
5823         createcommand("TIME",handle_time,0,0);
5824         createcommand("WHOIS",handle_whois,0,1);
5825         createcommand("WALLOPS",handle_wallops,'o',1);
5826         createcommand("NOTICE",handle_notice,0,2);
5827         createcommand("JOIN",handle_join,0,1);
5828         createcommand("NAMES",handle_names,0,1);
5829         createcommand("PART",handle_part,0,1);
5830         createcommand("KICK",handle_kick,0,2);
5831         createcommand("MODE",handle_mode,0,1);
5832         createcommand("TOPIC",handle_topic,0,1);
5833         createcommand("WHO",handle_who,0,1);
5834         createcommand("MOTD",handle_motd,0,0);
5835         createcommand("RULES",handle_rules,0,0);
5836         createcommand("OPER",handle_oper,0,2);
5837         createcommand("LIST",handle_list,0,0);
5838         createcommand("DIE",handle_die,'o',1);
5839         createcommand("RESTART",handle_restart,'o',1);
5840         createcommand("KILL",handle_kill,'o',2);
5841         createcommand("REHASH",handle_rehash,'o',0);
5842         createcommand("LUSERS",handle_lusers,0,0);
5843         createcommand("STATS",handle_stats,0,1);
5844         createcommand("USERHOST",handle_userhost,0,1);
5845         createcommand("AWAY",handle_away,0,0);
5846         createcommand("ISON",handle_ison,0,0);
5847         createcommand("SUMMON",handle_summon,0,0);
5848         createcommand("USERS",handle_users,0,0);
5849         createcommand("INVITE",handle_invite,0,2);
5850         createcommand("PASS",handle_pass,0,1);
5851         createcommand("TRACE",handle_trace,'o',0);
5852         createcommand("WHOWAS",handle_whowas,0,1);
5853         createcommand("CONNECT",handle_connect,'o',1);
5854         createcommand("SQUIT",handle_squit,'o',1);
5855         createcommand("MODULES",handle_modules,'o',0);
5856         createcommand("LINKS",handle_links,0,0);
5857         createcommand("MAP",handle_map,0,0);
5858 }
5859
5860 void process_buffer(const char* cmdbuf,userrec *user)
5861 {
5862         if (!user)
5863         {
5864                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5865                 return;
5866         }
5867         char cmd[MAXBUF];
5868         int i;
5869         if (!cmdbuf)
5870         {
5871                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5872                 return;
5873         }
5874         if (!strcmp(cmdbuf,""))
5875         {
5876                 return;
5877         }
5878         strncpy(cmd,cmdbuf,MAXBUF);
5879         if (!strcmp(cmd,""))
5880         {
5881                 return;
5882         }
5883         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5884         {
5885                 cmd[strlen(cmd)-1] = '\0';
5886         }
5887         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5888         {
5889                 cmd[strlen(cmd)-1] = '\0';
5890         }
5891         if (!strcmp(cmd,""))
5892         {
5893                 return;
5894         }
5895         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5896         tidystring(cmd);
5897         if ((user) && (cmd))
5898         {
5899                 process_command(user,cmd);
5900         }
5901 }
5902
5903 void DoSync(serverrec* serv, char* udp_host,int udp_port, long MyKey)
5904 {
5905         char data[MAXBUF];
5906         // send start of sync marker: Y <timestamp>
5907         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
5908         // except the ones its receiving it from.
5909         snprintf(data,MAXBUF,"Y %d",time(NULL));
5910         serv->SendPacket(data,udp_host,udp_port,MyKey);
5911         // send users and channels
5912         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
5913         {
5914                 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);
5915                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5916                 if (strcmp(chlist(u->second),""))
5917                 {
5918                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
5919                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5920                 }
5921         }
5922         // send channel modes, topics etc...
5923         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
5924         {
5925                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
5926                 serv->SendPacket(data,udp_host,udp_port,MyKey);
5927                 if (strcmp(c->second->topic,""))
5928                 {
5929                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
5930                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5931                 }
5932                 // send current banlist
5933
5934                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
5935                 {
5936                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
5937                         serv->SendPacket(data,udp_host,udp_port,MyKey);
5938                 }
5939         }
5940         // send end of sync marker: E <timestamp>
5941         snprintf(data,MAXBUF,"F %d",time(NULL));
5942         serv->SendPacket(data,udp_host,udp_port,MyKey);
5943         // ircd sends its serverlist after the end of sync here
5944 }
5945
5946
5947 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5948 {
5949         char* src = strtok(params," ");
5950         char* dest = strtok(NULL," :");
5951         char* text = strtok(NULL,"\r\n");
5952         text++;
5953
5954         userrec* user = Find(src);
5955         if (user)
5956         {
5957                 userrec* dst = Find(dest);
5958
5959                 if (dst)
5960                 {
5961                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
5962                 }
5963                 else
5964                 {
5965                         chanrec* d = FindChan(dest);
5966                         if (d)
5967                         {
5968                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
5969                         }
5970                 }
5971         }
5972
5973 }
5974
5975
5976 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
5977 {
5978         char* src = strtok(params," ");
5979         char* dest = strtok(NULL," :");
5980         char* text = strtok(NULL,"\r\n");
5981         text++;
5982
5983         userrec* user = Find(src);
5984         if (user)
5985         {
5986                 userrec* dst = Find(dest);
5987
5988                 if (dst)
5989                 {
5990                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
5991                 }
5992                 else
5993                 {
5994                         chanrec* d = FindChan(dest);
5995                         if (d)
5996                         {
5997                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
5998                         }
5999                 }
6000         }
6001
6002 }
6003
6004
6005 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6006 {
6007         char* tm = strtok(params," ");
6008         char* setby = strtok(NULL," ");
6009         char* channel = strtok(NULL," :");
6010         char* topic = strtok(NULL,"\r\n");
6011         topic++;
6012         time_t TS = atoi(tm);
6013         chanrec* c = FindChan(channel);
6014         if (c)
6015         {
6016                 // in the case of topics and TS, the *NEWER*
6017                 if (TS <= c->topicset)
6018                 {
6019                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6020                         strncpy(c->topic,topic,MAXTOPIC);
6021                         strncpy(c->setby,setby,NICKMAX);
6022                 }
6023         }
6024 }
6025
6026 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6027 {
6028         char* pars[128];
6029         char original[MAXBUF],target[MAXBUF];
6030         strncpy(original,params,MAXBUF);
6031         int index = 0;
6032         char* parameter = strtok(params," ");
6033         strncpy(target,parameter,MAXBUF);
6034         while (parameter)
6035         {
6036                 pars[index++] = parameter;
6037                 parameter = strtok(NULL," ");
6038         }
6039         merge_mode(pars,index);
6040         if (FindChan(target))
6041         {
6042                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6043         }
6044         if (Find(target))
6045         {
6046                 WriteTo(NULL,Find(target),"MODE %s",original);
6047         }
6048 }
6049
6050 // m is modes set by users only (not servers) valid targets are channels or users.
6051
6052 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6053 {
6054         // m blah #chatspike +b *!test@*4
6055         char* pars[128];
6056         char original[MAXBUF];
6057         strncpy(original,params,MAXBUF);
6058
6059         if (!strchr(params,' '))
6060         {
6061                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6062                 return;
6063         }
6064
6065         int index = 0;
6066
6067         char* src = strtok(params," ");
6068         userrec* user = Find(src);
6069
6070         if (user)
6071         {
6072                 log(DEBUG,"Found user: %s",user->nick);
6073                 char* parameter = strtok(NULL," ");
6074                 while (parameter)
6075                 {
6076                         pars[index++] = parameter;
6077                         parameter = strtok(NULL," ");
6078                 }
6079
6080                 log(DEBUG,"Calling merge_mode2");
6081                 merge_mode2(pars,index,user);
6082         }
6083 }
6084
6085
6086 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6087 {
6088         char* nick = strtok(params," ");
6089         char* channel = strtok(NULL," :");
6090         char* reason = strtok(NULL,"\r\n");
6091         userrec* user = Find(nick);
6092         reason++;
6093         if (user)
6094         {
6095                 if (strcmp(reason,""))
6096                 {
6097                         del_channel(user,channel,reason,true);
6098                 }
6099                 else
6100                 {
6101                         del_channel(user,channel,NULL,true);
6102                 }
6103         }
6104 }
6105
6106 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6107 {
6108         char* nick = strtok(params," :");
6109         char* reason = strtok(NULL,"\r\n");
6110         reason++;
6111
6112         userrec* user = Find(nick);
6113
6114         if (user)
6115         {
6116                 if (strlen(reason)>MAXQUIT)
6117                 {
6118                         reason[MAXQUIT-1] = '\0';
6119                 }
6120
6121
6122                 WriteCommonExcept(user,"QUIT :%s",reason);
6123
6124                 user_hash::iterator iter = clientlist.find(user->nick);
6125
6126                 if (iter != clientlist.end())
6127                 {
6128                         log(DEBUG,"deleting user hash value %d",iter->second);
6129                         if ((iter->second) && (user->registered == 7)) {
6130                                 delete iter->second;
6131                         }
6132                         clientlist.erase(iter);
6133                 }
6134
6135                 purge_empty_chans();
6136         }
6137 }
6138
6139 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6140 {
6141         char* oldnick = strtok(params," ");
6142         char* newnick = strtok(NULL," ");
6143
6144         userrec* user = Find(oldnick);
6145
6146         if (user)
6147         {
6148                 WriteCommon(user,"NICK %s",newnick);
6149                 user = ReHashNick(user->nick, newnick);
6150                 if (!user) return;
6151                 if (!user->nick) return;
6152                 strncpy(user->nick, newnick,NICKMAX);
6153                 log(DEBUG,"new nick set: %s",user->nick);
6154         }
6155 }
6156
6157 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6158 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6159 {
6160         char* src = strtok(params," ");
6161         char* dest = strtok(NULL," ");
6162         char* channel = strtok(NULL," :");
6163         char* reason = strtok(NULL,"\r\n");
6164         reason++;
6165         userrec* s = Find(src);
6166         userrec* d = Find(dest);
6167         chanrec* c = FindChan(channel);
6168         if ((s) && (d) && (c))
6169         {
6170                 kick_channel(s,d,c,reason);
6171         }
6172 }
6173
6174 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6175 {
6176         char* tm = strtok(params," ");
6177         char* nick = strtok(NULL," ");
6178         char* host = strtok(NULL," ");
6179         char* dhost = strtok(NULL," ");
6180         char* ident = strtok(NULL," ");
6181         char* modes = strtok(NULL," ");
6182         char* server = strtok(NULL," :");
6183         char* gecos = strtok(NULL,"\r\n");
6184         gecos++;
6185         modes++;
6186         time_t TS = atoi(tm);
6187         user_hash::iterator iter = clientlist.find(nick);
6188         if (iter != clientlist.end())
6189         {
6190                 // nick collision
6191                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6192                 if (TS >= iter->second->age)
6193                 {
6194                         char str[MAXBUF];
6195                         snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6196                         WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6197                         // client on remote server is older than the local user, kill the local user
6198                         kill_link(iter->second,str);
6199                 }
6200         }
6201         clientlist[nick] = new userrec();
6202         // remote users have an fd of -1. This is so that our Write abstraction
6203         // routines know to route any messages to this record away to whatever server
6204         // theyre on.
6205         clientlist[nick]->fd = -1;
6206         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6207         strncpy(clientlist[nick]->host, host,160);
6208         strncpy(clientlist[nick]->dhost, dhost,160);
6209         strncpy(clientlist[nick]->server, server,256);
6210         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for '~'
6211         strncpy(clientlist[nick]->fullname, gecos,128);
6212         clientlist[nick]->signon = TS;
6213         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6214         clientlist[nick]->lastping = 1;
6215         clientlist[nick]->port = 0; // so is this...
6216         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6217         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6218         for (int i = 0; i < MAXCHANS; i++)
6219         {
6220                 clientlist[nick]->chans[i].channel = NULL;
6221                 clientlist[nick]->chans[i].uc_modes = 0;
6222         }
6223 }
6224
6225 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6226 {
6227         long tdiff = time(NULL) - atoi(params);
6228         if (tdiff)
6229                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6230 }
6231
6232 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6233 {
6234         // IMPORTANT NOTE
6235         // The J token currently has no timestamp - this needs looking at
6236         // because it will allow splitriding.
6237         char* nick = strtok(params," ");
6238         char* channel = strtok(NULL," ");
6239         userrec* user = Find(nick);
6240         while (channel)
6241         {
6242                 if ((user != NULL) && (strcmp(channel,"")))
6243                 {
6244                         char privilage = '\0';
6245                         if (channel[0] != '#')
6246                         {
6247                                 privilage = channel[0];
6248                                 channel++;
6249                         }
6250                         add_channel(user,channel,"",true);
6251
6252                         // now work out the privilages they should have on each channel
6253                         // and send the appropriate servermodes.
6254                         for (int i = 0; i != MAXCHANS; i++)
6255                         {
6256                                 if (user->chans[i].channel)
6257                                 {
6258                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6259                                         {
6260                                                 if (privilage == '@')
6261                                                 {
6262                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6263                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6264                                                 }
6265                                                 if (privilage == '%')
6266                                                 {
6267                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6268                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6269                                                 }
6270                                                 if (privilage == '+')
6271                                                 {
6272                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6273                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6274                                                 }
6275                                         }
6276                                 }
6277                         }
6278
6279                 }
6280                 channel = strtok(NULL," ");
6281         }
6282 }
6283
6284 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,int udp_port)
6285 {
6286         switch(token)
6287         {
6288                 // Y <TS>
6289                 // start netburst
6290                 case 'Y':
6291                         nb_start = time(NULL);
6292                         WriteOpers("Server %s is starting netburst.",source->name);
6293                 break;
6294                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6295                 // introduce remote client
6296                 case 'N':
6297                         handle_N(token,params,source,reply,udp_host,udp_port);
6298                 break;
6299                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6300                 case 'k':
6301                         handle_k(token,params,source,reply,udp_host,udp_port);
6302                 break;
6303                 // n <NICK> <NEWNICK>
6304                 // change nickname of client -- a server should only be able to
6305                 // change the nicknames of clients that reside on it unless
6306                 // they are ulined.
6307                 case 'n':
6308                         handle_n(token,params,source,reply,udp_host,udp_port);
6309                 break;
6310                 // J <NICK> <CHANLIST>
6311                 // Join user to channel list, merge channel permissions
6312                 case 'J':
6313                         handle_J(token,params,source,reply,udp_host,udp_port);
6314                 break;
6315                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6316                 // change channel topic (netburst only)
6317                 case 'T':
6318                         handle_T(token,params,source,reply,udp_host,udp_port);
6319                 break;
6320                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6321                 // Server setting modes on an object
6322                 case 'M':
6323                         handle_M(token,params,source,reply,udp_host,udp_port);
6324                 break;
6325                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6326                 // User setting modes on an object
6327                 case 'm':
6328                         handle_m(token,params,source,reply,udp_host,udp_port);
6329                 break;
6330                 // P <SOURCE> <TARGET> :<TEXT>
6331                 // Send a private/channel message
6332                 case 'P':
6333                         handle_P(token,params,source,reply,udp_host,udp_port);
6334                 break;
6335                 // V <SOURCE> <TARGET> :<TEXT>
6336                 // Send a private/channel notice
6337                 case 'V':
6338                         handle_V(token,params,source,reply,udp_host,udp_port);
6339                 break;
6340                 // L <SOURCE> <CHANNEL> :<REASON>
6341                 // User parting a channel
6342                 case 'L':
6343                         handle_L(token,params,source,reply,udp_host,udp_port);
6344                 break;
6345                 // Q <SOURCE> :<REASON>
6346                 // user quitting
6347                 case 'Q':
6348                         handle_Q(token,params,source,reply,udp_host,udp_port);
6349                 break;
6350                 // F <TS>
6351                 // end netburst
6352                 case 'F':
6353                         WriteOpers("Server %s has completed netburst. (%d secs)",source->name,time(NULL)-nb_start);
6354                         handle_F(token,params,source,reply,udp_host,udp_port);
6355                 break;
6356                 // anything else
6357                 default:
6358                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6359                 break;
6360         }
6361 }
6362
6363
6364 void handle_link_packet(long theirkey, char* udp_msg, char* udp_host, int udp_port, serverrec *serv)
6365 {
6366         char response[10240];
6367         char token = udp_msg[0];
6368         char* params = udp_msg + 2;
6369         char finalparam[1024];
6370         strcpy(finalparam," :xxxx");
6371         if (strstr(params," :")) {
6372                 strncpy(finalparam,strstr(params," :"),1024);
6373         }
6374         if (token == 'S') {
6375                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6376                 char* servername = strtok(params," ");
6377                 char* password = strtok(NULL," ");
6378                 char* serverdesc = finalparam+2;
6379                 WriteOpers("CONNECT from %s (%s)",servername,udp_host);
6380
6381
6382                 char Link_ServerName[1024];
6383                 char Link_IPAddr[1024];
6384                 char Link_Port[1024];
6385                 char Link_Pass[1024];
6386                 char Link_SendPass[1024];
6387                 int LinkPort = 0;
6388
6389                 // search for a corresponding <link> block in the config files
6390                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6391                 {
6392                         ConfValue("link","name",i,Link_ServerName,&config_f);
6393                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6394                         ConfValue("link","port",i,Link_Port,&config_f);
6395                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6396                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6397                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6398                         LinkPort = atoi(Link_Port);
6399                         if (!strcasecmp(Link_ServerName,servername)) {
6400                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6401                                         if (LinkPort == udp_port) {
6402                                                 // we have a matching link line -
6403                                                 // send a 'diminutive' server message back...
6404                                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6405                                                 serv->SendPacket(response,udp_host,udp_port,0);
6406                                                 WriteOpers("CONNECT from %s accepted, authenticating",servername);
6407                                                 for (int j = 0; j < 255; j++) {
6408                                                         if (servers[j] == NULL) {
6409                                                                 servers[j] = new serverrec;
6410                                                                 strcpy(servers[j]->internal_addr,udp_host);
6411                                                                 strcpy(servers[j]->name,servername);
6412                                                                 strcpy(servers[j]->description,serverdesc);
6413                                                                 servers[j]->internal_port = udp_port;
6414                                                                 // create a server record for this server
6415                                                                 snprintf(response,10240,"O %d",MyKey);
6416                                                                 serv->SendPacket(response,udp_host,udp_port,0);
6417                                                                 return;
6418                                                         }
6419                                                 }
6420                                                 WriteOpers("Internal error connecting to %s, failed to create server record!",servername);
6421                                                 return;
6422                                         }
6423                                         else {
6424                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6425                                         }
6426                                 }
6427                                 else {
6428                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6429                                 }
6430                         }
6431                         else {
6432                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6433                         }
6434                 }
6435                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6436                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6437                 return;
6438         }
6439         else
6440         if (token == 'O') {
6441                 // if this is received, this means the server-ip that sent it said "OK" to credentials.
6442                 // only when a server says this do we exchange keys. The server MUST have an entry in the servers
6443                 // array, which is only added by an 'S' packet or BeginLink().
6444                 for (int i = 0; i < 255; i++) {
6445                         if (servers[i] != NULL) {
6446                                 if (!strcasecmp(servers[i]->internal_addr,udp_host)) {
6447                                         servers[i]->key = atoi(params);
6448                                         log(DEBUG,"Key for this server is now %d",servers[i]->key);
6449                                         DoSync(serv,udp_host,udp_port,MyKey);
6450                                         return;
6451                                 }
6452                         }
6453                 }
6454                 WriteOpers("\2WARNING!\2 Server ip %s attempted a key exchange, but is not in the authentication state! Possible intrusion attempt!",udp_host);
6455         }
6456         else
6457         if (token == 's') {
6458                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6459                 char* servername = strtok(params," ");
6460                 char* password = strtok(NULL," ");
6461                 char* serverdesc = finalparam+2;
6462
6463                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6464                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6465                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6466                 // a connect, so put out an oper alert!
6467
6468
6469
6470
6471                 // for now, just accept all, we'll fix that later.
6472                 WriteOpers("%s accepted our link credentials ",servername);
6473
6474                 char Link_ServerName[1024];
6475                 char Link_IPAddr[1024];
6476                 char Link_Port[1024];
6477                 char Link_Pass[1024];
6478                 char Link_SendPass[1024];
6479                 int LinkPort = 0;
6480
6481                 // search for a corresponding <link> block in the config files
6482                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6483                 {
6484                         ConfValue("link","name",i,Link_ServerName,&config_f);
6485                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6486                         ConfValue("link","port",i,Link_Port,&config_f);
6487                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6488                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6489                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6490                         LinkPort = atoi(Link_Port);
6491                         if (!strcasecmp(Link_ServerName,servername)) {
6492                                 if (!strcasecmp(Link_IPAddr,udp_host)) {
6493                                         if (LinkPort == udp_port) {
6494                                                 // matching link at this end too, we're all done!
6495                                                 // at this point we must begin key exchange and insert this
6496                                                 // server into our 'active' table.
6497                                                 for (int j = 0; j < 255; j++) {
6498                                                         if (servers[j] != NULL) {
6499                                                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6500                                                                         strcpy(servers[j]->description,serverdesc);
6501                                                                         WriteOpers("Server %s authenticated, exchanging server keys...",servername);
6502                                                                         snprintf(response,10240,"O %d",MyKey);
6503                                                                         serv->SendPacket(response,udp_host,udp_port,0);
6504                                                                         return;
6505                                                                 }
6506                                                         }
6507                                                 }
6508                                                 WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6509                                                 return;
6510
6511                                         }
6512                                         else {
6513                                                 log(DEBUG,"Port numbers '%d' and '%d' don't match",LinkPort,udp_port);
6514                                         }
6515                                 }
6516                                 else {
6517                                         log(DEBUG,"IP Addresses '%s' and '%s' don't match",Link_IPAddr,udp_host);
6518                                 }
6519                         }
6520                         else {
6521                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6522                         }
6523                 }
6524                 serv->SendPacket("E :Access is denied (no matching link block)",udp_host,udp_port,0);
6525                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6526                 return;
6527         }
6528         else
6529         if (token == 'E') {
6530                 char* error_message = finalparam+2;
6531                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6532                 // remove this server from any lists
6533                 for (int j = 0; j < 255; j++) {
6534                         if (servers[j] != NULL) {
6535                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6536                                         delete servers[j];
6537                                         return;
6538                                 }
6539                         }
6540                 }
6541                 return;
6542         }
6543         else {
6544
6545                 serverrec* source_server = NULL;
6546
6547                 for (int j = 0; j < 255; j++) {
6548                         if (servers[j] != NULL) {
6549                                 if (!strcasecmp(servers[j]->internal_addr,udp_host)) {
6550                                         if (servers[j]->key == theirkey) {
6551                                                 // found a valid key for this server, can process restricted stuff here
6552                                                 process_restricted_commands(token,params,servers[j],serv,udp_host,udp_port);
6553                                                 return;
6554                                         }
6555                                 }
6556                         }
6557                 }
6558
6559                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s:%d: %c",udp_host,udp_port,token);
6560         }
6561 }
6562
6563 int reap_counter = 0;
6564
6565 int InspIRCd(void)
6566 {
6567         struct sockaddr_in client, server;
6568         char addrs[MAXBUF][255];
6569         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6570         socklen_t length;
6571         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6572         int selectResult = 0, selectResult2 = 0;
6573         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6574         char resolvedHost[MAXBUF];
6575         fd_set selectFds;
6576         struct timeval tv;
6577
6578         log_file = fopen("ircd.log","a+");
6579         if (!log_file)
6580         {
6581                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6582                 Exit(ERROR);
6583         }
6584
6585         log(DEBUG,"InspIRCd: startup: begin");
6586         log(DEBUG,"$Id$");
6587         if (geteuid() == 0)
6588         {
6589                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6590                 Exit(ERROR);
6591                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6592         }
6593         SetupCommandTable();
6594         log(DEBUG,"InspIRCd: startup: default command table set up");
6595
6596         ReadConfig();
6597         if (strcmp(DieValue,""))
6598         {
6599                 printf("WARNING: %s\n\n",DieValue);
6600                 exit(0);
6601         }
6602         log(DEBUG,"InspIRCd: startup: read config");
6603
6604         int count2 = 0, count3 = 0;
6605
6606         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6607         {
6608                 ConfValue("bind","port",count,configToken,&config_f);
6609                 ConfValue("bind","address",count,Addr,&config_f);
6610                 ConfValue("bind","type",count,Type,&config_f);
6611                 if (!strcmp(Type,"servers"))
6612                 {
6613                         char Default[MAXBUF];
6614                         strcpy(Default,"no");
6615                         ConfValue("bind","default",count,Default,&config_f);
6616                         if (strchr(Default,'y'))
6617                         {
6618                                 defaultRoute = count3;
6619                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6620                         }
6621                         me[count3] = new serverrec(ServerName,100L,false);
6622                         me[count3]->CreateListener(Addr,atoi(configToken));
6623                         count3++;
6624                 }
6625                 else
6626                 {
6627                         ports[count2] = atoi(configToken);
6628                         strcpy(addrs[count2],Addr);
6629                         count2++;
6630                 }
6631                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6632         }
6633         portCount = count2;
6634         UDPportCount = count3;
6635
6636         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6637
6638         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6639
6640         printf("\n");
6641
6642         /* BugFix By Craig! :p */
6643         count = 0;
6644         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6645         {
6646                 char modfile[MAXBUF];
6647                 ConfValue("module","name",count2,configToken,&config_f);
6648                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6649                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6650                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6651                 /* If The File Doesnt exist, Trying to load it
6652                  * Will Segfault the IRCd.. So, check to see if
6653                  * it Exists, Before Proceeding. */
6654                 if (FileExists(modfile))
6655                 {
6656                         factory[count] = new ircd_module(modfile);
6657                         if (factory[count]->LastError())
6658                         {
6659                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6660                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6661                                 Exit(ERROR);
6662                         }
6663                         if (factory[count]->factory)
6664                         {
6665                                 modules[count] = factory[count]->factory->CreateModule();
6666                                 /* save the module and the module's classfactory, if
6667                                  * this isnt done, random crashes can occur :/ */
6668                                 module_names.push_back(modfile);
6669                         }
6670                         else
6671                         {
6672                                 log(DEBUG,"Unable to load %s",modfile);
6673                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6674                                 Exit(ERROR);
6675                         }
6676                         /* Increase the Count */
6677                         count++;
6678                 }
6679                 else
6680                 {
6681                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6682                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6683                 }
6684         }
6685         MODCOUNT = count - 1;
6686         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6687
6688         printf("\nInspIRCd is now running!\n");
6689
6690         startup_time = time(NULL);
6691
6692         if (nofork)
6693         {
6694                 log(VERBOSE,"Not forking as -nofork was specified");
6695         }
6696         else
6697         {
6698                 if (DaemonSeed() == ERROR)
6699                 {
6700                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6701                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6702                         Exit(ERROR);
6703                 }
6704         }
6705
6706
6707         /* setup select call */
6708         FD_ZERO(&selectFds);
6709         log(DEBUG,"InspIRCd: startup: zero selects");
6710         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
6711
6712         for (count = 0; count < portCount; count++)
6713         {
6714                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
6715                 {
6716                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
6717                         return(ERROR);
6718                 }
6719                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
6720                 {
6721                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
6722                 }
6723                 else    /* well we at least bound to one socket so we'll continue */
6724                 {
6725                         boundPortCount++;
6726                 }
6727         }
6728
6729         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
6730
6731         /* if we didn't bind to anything then abort */
6732         if (boundPortCount == 0)
6733         {
6734                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
6735                 return (ERROR);
6736         }
6737
6738         length = sizeof (client);
6739         int flip_flop = 0, udp_port = 0;
6740         char udp_msg[MAXBUF], udp_host[MAXBUF];
6741
6742         /* main loop, this never returns */
6743         for (;;)
6744         {
6745
6746                 fd_set sfd;
6747                 struct timeval tval;
6748                 FD_ZERO(&sfd);
6749
6750                 user_hash::iterator count2 = clientlist.begin();
6751
6752                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
6753                 // them in a list, then reap the list every second or so.
6754                 if (reap_counter>5000)
6755                 {
6756                         if (fd_reap.size() > 0)
6757                         {
6758                                 for( int n = 0; n < fd_reap.size(); n++)
6759                                 {
6760                                         Blocking(fd_reap[n]);
6761                                         close(fd_reap[n]);
6762                                         NonBlocking(fd_reap[n]);
6763                                 }
6764                         }
6765                         fd_reap.clear();
6766                         reap_counter=0;
6767                 }
6768
6769
6770                 for (int x = 0; x != UDPportCount; x++)
6771                 {
6772                         long theirkey = 0;
6773                         if (me[x]->RecvPacket(udp_msg, udp_host, udp_port, theirkey))
6774                         {
6775                                 if (strlen(udp_msg)<1) {
6776                                 log(DEBUG,"Invalid datagram from %s:%d:%d [route%d]",udp_host,udp_port,me[x]->port,x);
6777                         }
6778                         else
6779                         {
6780                                 FOREACH_MOD OnPacketReceive(udp_msg);
6781                                 // Packets must go back via the route they arrived on :)
6782                                 handle_link_packet(theirkey, udp_msg, udp_host, udp_port, me[x]);
6783                                 // link packets can manipulate the usertable so beware of
6784                                 // any loops here watching the user or channels hash
6785                                 log(DEBUG,"Sync: exit 3");
6786                                 goto label;
6787                         }
6788                 }
6789         }
6790
6791
6792         while (count2 != clientlist.end())
6793         {
6794                 char data[10240];
6795                 tval.tv_usec = tval.tv_sec = 0;
6796                 FD_ZERO(&sfd);
6797                 int total_in_this_set = 0;
6798
6799                 user_hash::iterator xcount = count2;
6800                 user_hash::iterator endingiter = count2;
6801
6802                 if (!count2->second) break;
6803
6804                 if (count2->second)
6805                 if (count2->second->fd != 0)
6806                 {
6807                         // assemble up to 64 sockets into an fd_set
6808                         // to implement a pooling mechanism.
6809                         //
6810                         // This should be up to 64x faster than the
6811                         // old implementation.
6812                         while (total_in_this_set < 64)
6813                         {
6814                                 if (count2 != clientlist.end())
6815                                 {
6816                                         // we don't check the state of remote users.
6817                                         if (count2->second->fd > 0)
6818                                         {
6819                                                 FD_SET (count2->second->fd, &sfd);
6820
6821                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
6822                                                 // their connection class.
6823                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
6824                                                 {
6825                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
6826                                                         kill_link(count2->second,"Registration timeout");
6827                                                         goto label;
6828                                                 }
6829                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
6830                                                 {
6831                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
6832                                                         {
6833                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
6834                                                                 kill_link(count2->second,"Ping timeout");
6835                                                                 goto label;
6836                                                         }
6837                                                         Write(count2->second->fd,"PING :%s",ServerName);
6838                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
6839                                                         count2->second->lastping = 0;
6840                                                         count2->second->nping = time(NULL)+120;
6841                                                 }
6842                                         }
6843                                         count2++;
6844                                         total_in_this_set++;
6845                                 }
6846                                 else break;
6847                         }
6848
6849                         endingiter = count2;
6850                         count2 = xcount; // roll back to where we were
6851
6852                         int v = 0;
6853
6854                         tval.tv_usec = 0;
6855                         tval.tv_sec = 0;
6856                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
6857
6858                         // now loop through all of the items in this pool if any are waiting
6859                         //if (selectResult2 > 0)
6860                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
6861                         {
6862                                 result = EAGAIN;
6863                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
6864                                 {
6865                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
6866                                         memset(data, 0, 10240);
6867                                         result = read(count2a->second->fd, data, 10240);
6868
6869                                         if (result)
6870                                         {
6871                                                 log(DEBUG,"Read %d characters from socket",result);
6872                                                 userrec* current = count2a->second;
6873                                                 int currfd = current->fd;
6874                                                 char* l = strtok(data,"\n");
6875                                                 int floodlines = 0;
6876                                                 while (l)
6877                                                 {
6878                                                         floodlines++;
6879                                                         if ((floodlines > current->flood) && (current->flood != 0))
6880                                                         {
6881                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6882                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
6883                                                                 kill_link(current,"Excess flood");
6884                                                                 goto label;
6885                                                         }
6886                                                         char sanitized[NetBufferSize];
6887                                                         memset(sanitized, 0, NetBufferSize);
6888                                                         int ptt = 0;
6889                                                         for (int pt = 0; pt < strlen(l); pt++)
6890                                                         {
6891                                                                 if (l[pt] != '\r')
6892                                                                 {
6893                                                                         sanitized[ptt++] = l[pt];
6894                                                                 }
6895                                                         }
6896                                                         sanitized[ptt] = '\0';
6897                                                         if (strlen(sanitized))
6898                                                         {
6899
6900
6901                                                                 // we're gonna re-scan to check if the nick is gone, after every
6902                                                                 // command - if it has, we're gonna bail
6903                                                                 bool find_again = false;
6904                                                                 process_buffer(sanitized,current);
6905
6906                                                                 // look for the user's record in case it's changed
6907                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
6908                                                                 {
6909                                                                         if (c2->second->fd == currfd)
6910                                                                         {
6911                                                                                 // found again, update pointer
6912                                                                                 current == c2->second;
6913                                                                                 find_again = true;
6914                                                                                 break;
6915                                                                         }
6916                                                                 }
6917                                                                 if (!find_again)
6918                                                                         goto label;
6919
6920                                                         }
6921                                                         l = strtok(NULL,"\n");
6922                                                 }
6923                                                 goto label;
6924                                         }
6925
6926                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
6927                                         {
6928                                                 log(DEBUG,"killing: %s",count2a->second->nick);
6929                                                 kill_link(count2a->second,strerror(errno));
6930                                                 goto label;
6931                                         }
6932                                 }
6933                                 // result EAGAIN means nothing read
6934                                 if (result == EAGAIN)
6935                                 {
6936                                 }
6937                                 else
6938                                 if (result == 0)
6939                                 {
6940                                         if (count2->second)
6941                                         {
6942                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
6943                                                 kill_link(count2a->second,"Client exited");
6944                                                 // must bail here? kill_link removes the hash, corrupting the iterator
6945                                                 log(DEBUG,"Bailing from client exit");
6946                                                 goto label;
6947                                         }
6948                                 }
6949                                 else if (result > 0)
6950                                 {
6951                                 }
6952                         }
6953                 }
6954                 for (int q = 0; q < total_in_this_set; q++)
6955                 {
6956                         // there is no iterator += operator :(
6957                         //if (count2 != clientlist.end())
6958                         //{
6959                                 count2++;
6960                         //}
6961                 }
6962         }
6963
6964         // set up select call
6965         for (count = 0; count < boundPortCount; count++)
6966         {
6967                 FD_SET (openSockfd[count], &selectFds);
6968         }
6969
6970         /* added timeout! select was waiting forever... wank... :/ */
6971         tv.tv_usec = 0;
6972
6973         flip_flop++;
6974         reap_counter++;
6975         if (flip_flop > 20)
6976         {
6977                 tv.tv_usec = 1;
6978                 flip_flop = 0;
6979         }
6980
6981         tv.tv_sec = 0;
6982         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
6983
6984         /* select is reporting a waiting socket. Poll them all to find out which */
6985         if (selectResult > 0)
6986         {
6987                 char target[MAXBUF], resolved[MAXBUF];
6988                 for (count = 0; count < boundPortCount; count++)
6989                 {
6990                         if (FD_ISSET (openSockfd[count], &selectFds))
6991                         {
6992                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
6993
6994                                 address_cache::iterator iter = IP.find(client.sin_addr);
6995                                 bool iscached = false;
6996                                 if (iter == IP.end())
6997                                 {
6998                                         /* ip isn't in cache, add it */
6999                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7000                                         if(CleanAndResolve(resolved, target) != TRUE)
7001                                         {
7002                                                 strncpy(resolved,target,MAXBUF);
7003                                         }
7004                                         /* hostname now in 'target' */
7005                                         IP[client.sin_addr] = new string(resolved);
7006                                         /* hostname in cache */
7007                                 }
7008                                 else
7009                                 {
7010                                         /* found ip (cached) */
7011                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7012                                         iscached = true;
7013                                 }
7014
7015                                 if (incomingSockfd < 0)
7016                                 {
7017                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7018                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7019                                 }
7020                                 else
7021                                 {
7022                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7023                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7024                                 }
7025                                 goto label;
7026                         }
7027                 }
7028         }
7029         label:
7030         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7031 }
7032 /* not reached */
7033 close (incomingSockfd);
7034 }
7035