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