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