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 <unistd.h>
  45 #include <sched.h>
  46 #include "connection.h"
  47 #include "users.h"
  48 #include "servers.h"
  49 #include "ctables.h"
  50 #include "globals.h"
  51 #include "modules.h"
  52 #include "dynamic.h"
  53 #include "wildcard.h"
  54 #include "message.h"
  55 #include "mode.h"
  56 #include "commands.h"
  57 #include "xline.h"
  58 #include "inspstring.h"
  59 #include "dnsqueue.h"
  60
  61 #ifdef GCC3
  62 #define nspace __gnu_cxx
  63 #else
  64 #define nspace std
  65 #endif
  66
  67 int LogLevel = DEFAULT;
  68 char ServerName[MAXBUF];
  69 char Network[MAXBUF];
  70 char ServerDesc[MAXBUF];
  71 char AdminName[MAXBUF];
  72 char AdminEmail[MAXBUF];
  73 char AdminNick[MAXBUF];
  74 char diepass[MAXBUF];
  75 char restartpass[MAXBUF];
  76 char motd[MAXBUF];
  77 char rules[MAXBUF];
  78 char list[MAXBUF];
  79 char PrefixQuit[MAXBUF];
  80 char DieValue[MAXBUF];
  81 char DNSServer[MAXBUF];
  82 int debugging =  0;
  83 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  84 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  85 int DieDelay  =  5;
  86 time_t startup_time = time(NULL);
  87 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  88 extern int MaxWhoResults;
  89 time_t nb_start = 0;
  90 int dns_timeout = 5;
  91
  92 char DisabledCommands[MAXBUF];
  93
  94 bool AllowHalfop = true;
  95 bool AllowProtect = true;
  96 bool AllowFounder = true;
  97
  98 extern std::vector<Module*> modules;
  99 std::vector<std::string> module_names;
 100 extern std::vector<ircd_module*> factory;
 101
 102 extern int MODCOUNT;
 103 int openSockfd[MAXSOCKS];
 104 bool nofork = false;
 105 bool unlimitcore = false;
 106
 107 time_t TIME = time(NULL);
 108
 109 namespace nspace
 110 {
 111 #ifdef GCC34
 112         template<> struct hash<in_addr>
 113 #else
 114         template<> struct nspace::hash<in_addr>
 115 #endif
 116         {
 117                 size_t operator()(const struct in_addr &a) const
 118                 {
 119                         size_t q;
 120                         memcpy(&q,&a,sizeof(size_t));
 121                         return q;
 122                 }
 123         };
 124 #ifdef GCC34
 125         template<> struct hash<string>
 126 #else
 127         template<> struct nspace::hash<string>
 128 #endif
 129         {
 130                 size_t operator()(const string &s) const
 131                 {
 132                         char a[MAXBUF];
 133                         static struct hash<const char *> strhash;
 134                         strlcpy(a,s.c_str(),MAXBUF);
 135                         strlower(a);
 136                         return strhash(a);
 137                 }
 138         };
 139 }
 140
 141
 142 struct StrHashComp
 143 {
 144
 145         bool operator()(const string& s1, const string& s2) const
 146         {
 147                 char a[MAXBUF],b[MAXBUF];
 148                 strlcpy(a,s1.c_str(),MAXBUF);
 149                 strlcpy(b,s2.c_str(),MAXBUF);
 150                 strlower(a);
 151                 strlower(b);
 152                 return (strcasecmp(a,b) == 0);
 153         }
 154
 155 };
 156
 157 struct InAddr_HashComp
 158 {
 159
 160         bool operator()(const in_addr &s1, const in_addr &s2) const
 161         {
 162                 size_t q;
 163                 size_t p;
 164
 165                 memcpy(&q,&s1,sizeof(size_t));
 166                 memcpy(&p,&s2,sizeof(size_t));
 167
 168                 return (q == p);
 169         }
 170
 171 };
 172
 173
 174 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 175 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 176 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 177 typedef std::deque<command_t> command_table;
 178
 179 serverrec* me[32];
 180
 181 FILE *log_file;
 182
 183 user_hash clientlist;
 184 chan_hash chanlist;
 185 user_hash whowas;
 186 command_table cmdlist;
 187 file_cache MOTD;
 188 file_cache RULES;
 189 address_cache IP;
 190
 191 ClassVector Classes;
 192
 193 struct linger linger = { 0 };
 194 char MyExecutable[1024];
 195 int boundPortCount = 0;
 196 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 197 int defaultRoute = 0;
 198 char ModPath[MAXBUF];
 199
 200 connection C;
 201
 202 long MyKey = C.GenKey();
 203
 204 /* prototypes */
 205
 206 int has_channel(userrec *u, chanrec *c);
 207 int usercount(chanrec *c);
 208 int usercount_i(chanrec *c);
 209 char* Passwd(userrec *user);
 210 bool IsDenied(userrec *user);
 211 void AddWhoWas(userrec* u);
 212
 213 std::vector<long> auth_cookies;
 214 std::stringstream config_f(stringstream::in | stringstream::out);
 215
 216
 217
 218 long GetRevision()
 219 {
 220         char Revision[] = "$Revision$";
 221         char *s1 = Revision;
 222         char *savept;
 223         char *v1 = strtok_r(s1," ",&savept);
 224         s1 = savept;
 225         char *v2 = strtok_r(s1," ",&savept);
 226         s1 = savept;
 227         return (long)(atof(v2)*10000);
 228 }
 229
 230
 231 std::string getservername()
 232 {
 233         return ServerName;
 234 }
 235
 236 std::string getserverdesc()
 237 {
 238         return ServerDesc;
 239 }
 240
 241 std::string getnetworkname()
 242 {
 243         return Network;
 244 }
 245
 246 std::string getadminname()
 247 {
 248         return AdminName;
 249 }
 250
 251 std::string getadminemail()
 252 {
 253         return AdminEmail;
 254 }
 255
 256 std::string getadminnick()
 257 {
 258         return AdminNick;
 259 }
 260
 261 void log(int level,char *text, ...)
 262 {
 263         char textbuffer[MAXBUF];
 264         va_list argsPtr;
 265         time_t rawtime;
 266         struct tm * timeinfo;
 267         if (level < LogLevel)
 268                 return;
 269
 270         time(&rawtime);
 271         timeinfo = localtime (&rawtime);
 272
 273         if (log_file)
 274         {
 275                 char b[MAXBUF];
 276                 va_start (argsPtr, text);
 277                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 278                 va_end(argsPtr);
 279                 strlcpy(b,asctime(timeinfo),MAXBUF);
 280                 b[strlen(b)-1] = ':';
 281                 fprintf(log_file,"%s %s\n",b,textbuffer);
 282                 if (nofork)
 283                 {
 284                         // nofork enabled? display it on terminal too
 285                         printf("%s %s\n",b,textbuffer);
 286                 }
 287         }
 288 }
 289
 290 void readfile(file_cache &F, const char* fname)
 291 {
 292         FILE* file;
 293         char linebuf[MAXBUF];
 294
 295         log(DEBUG,"readfile: loading %s",fname);
 296         F.clear();
 297         file =  fopen(fname,"r");
 298         if (file)
 299         {
 300                 while (!feof(file))
 301                 {
 302                         fgets(linebuf,sizeof(linebuf),file);
 303                         linebuf[strlen(linebuf)-1]='\0';
 304                         if (!strcmp(linebuf,""))
 305                         {
 306                                 strcpy(linebuf,"  ");
 307                         }
 308                         if (!feof(file))
 309                         {
 310                                 F.push_back(linebuf);
 311                         }
 312                 }
 313                 fclose(file);
 314         }
 315         else
 316         {
 317                 log(DEBUG,"readfile: failed to load file: %s",fname);
 318         }
 319         log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 320 }
 321
 322 void ReadConfig(bool bail, userrec* user)
 323 {
 324         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 325         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF];
 326         ConnectClass c;
 327         std::stringstream errstr;
 328
 329         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 330         {
 331                 errstr.seekg(0);
 332                 if (bail)
 333                 {
 334                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 335                         Exit(0);
 336                 }
 337                 else
 338                 {
 339                         char dataline[1024];
 340                         if (user)
 341                         {
 342                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 343                                 while (!errstr.eof())
 344                                 {
 345                                         errstr.getline(dataline,1024);
 346                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 347                                 }
 348                         }
 349                         else
 350                         {
 351                                 WriteOpers("There were errors in the configuration file:",user->nick);
 352                                 while (!errstr.eof())
 353                                 {
 354                                         errstr.getline(dataline,1024);
 355                                         WriteOpers(dataline);
 356                                 }
 357                         }
 358                         return;
 359                 }
 360         }
 361
 362         ConfValue("server","name",0,ServerName,&config_f);
 363         ConfValue("server","description",0,ServerDesc,&config_f);
 364         ConfValue("server","network",0,Network,&config_f);
 365         ConfValue("admin","name",0,AdminName,&config_f);
 366         ConfValue("admin","email",0,AdminEmail,&config_f);
 367         ConfValue("admin","nick",0,AdminNick,&config_f);
 368         ConfValue("files","motd",0,motd,&config_f);
 369         ConfValue("files","rules",0,rules,&config_f);
 370         ConfValue("power","diepass",0,diepass,&config_f);
 371         ConfValue("power","pause",0,pauseval,&config_f);
 372         ConfValue("power","restartpass",0,restartpass,&config_f);
 373         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 374         ConfValue("die","value",0,DieValue,&config_f);
 375         ConfValue("options","loglevel",0,dbg,&config_f);
 376         ConfValue("options","netbuffersize",0,NB,&config_f);
 377         ConfValue("options","maxwho",0,MW,&config_f);
 378         ConfValue("options","allowhalfop",0,AH,&config_f);
 379         ConfValue("options","allowprotect",0,AP,&config_f);
 380         ConfValue("options","allowfounder",0,AF,&config_f);
 381         ConfValue("dns","server",0,DNSServer,&config_f);
 382         ConfValue("dns","timeout",0,DNT,&config_f);
 383         ConfValue("options","moduledir",0,ModPath,&config_f);
 384         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 385
 386         NetBufferSize = atoi(NB);
 387         MaxWhoResults = atoi(MW);
 388         dns_timeout = atoi(DNT);
 389         if (!dns_timeout)
 390                 dns_timeout = 5;
 391         if (!strcmp(DNSServer,""))
 392                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 393         if (!strcmp(ModPath,""))
 394                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 395         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 396         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 397         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 398         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 399         {
 400                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 401                 NetBufferSize = 10240;
 402         }
 403         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 404         {
 405                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 406                 MaxWhoResults = 128;
 407         }
 408         if (!strcmp(dbg,"debug"))
 409                 LogLevel = DEBUG;
 410         if (!strcmp(dbg,"verbose"))
 411                 LogLevel = VERBOSE;
 412         if (!strcmp(dbg,"default"))
 413                 LogLevel = DEFAULT;
 414         if (!strcmp(dbg,"sparse"))
 415                 LogLevel = SPARSE;
 416         if (!strcmp(dbg,"none"))
 417                 LogLevel = NONE;
 418         readfile(MOTD,motd);
 419         log(DEFAULT,"Reading message of the day...");
 420         readfile(RULES,rules);
 421         log(DEFAULT,"Reading connect classes...");
 422         Classes.clear();
 423         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 424         {
 425                 strcpy(Value,"");
 426                 ConfValue("connect","allow",i,Value,&config_f);
 427                 ConfValue("connect","timeout",i,timeout,&config_f);
 428                 ConfValue("connect","flood",i,flood,&config_f);
 429                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 430                 if (strcmp(Value,""))
 431                 {
 432                         strlcpy(c.host,Value,MAXBUF);
 433                         c.type = CC_ALLOW;
 434                         strlcpy(Value,"",MAXBUF);
 435                         ConfValue("connect","password",i,Value,&config_f);
 436                         strlcpy(c.pass,Value,MAXBUF);
 437                         c.registration_timeout = 90; // default is 2 minutes
 438                         c.pingtime = 120;
 439                         c.flood = atoi(flood);
 440                         if (atoi(timeout)>0)
 441                         {
 442                                 c.registration_timeout = atoi(timeout);
 443                         }
 444                         if (atoi(pfreq)>0)
 445                         {
 446                                 c.pingtime = atoi(pfreq);
 447                         }
 448                         Classes.push_back(c);
 449                         log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 450                 }
 451                 else
 452                 {
 453                         ConfValue("connect","deny",i,Value,&config_f);
 454                         strlcpy(c.host,Value,MAXBUF);
 455                         c.type = CC_DENY;
 456                         Classes.push_back(c);
 457                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 458                 }
 459
 460         }
 461         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 462         read_xline_defaults();
 463         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 464         apply_lines();
 465         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 466         if (!bail)
 467         {
 468                 log(DEFAULT,"Adding and removing modules due to rehash...");
 469
 470                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 471
 472                 // store the old module names
 473                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 474                 {
 475                         old_module_names.push_back(*t);
 476                 }
 477
 478                 // get the new module names
 479                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 480                 {
 481                         ConfValue("module","name",count2,Value,&config_f);
 482                         new_module_names.push_back(Value);
 483                 }
 484
 485                 // now create a list of new modules that are due to be loaded
 486                 // and a seperate list of modules which are due to be unloaded
 487                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 488                 {
 489                         bool added = true;
 490                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 491                         {
 492                                 if (*old == *_new)
 493                                         added = false;
 494                         }
 495                         if (added)
 496                                 added_modules.push_back(*_new);
 497                 }
 498                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 499                 {
 500                         bool removed = true;
 501                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 502                         {
 503                                 if (*newm == *oldm)
 504                                         removed = false;
 505                         }
 506                         if (removed)
 507                                 removed_modules.push_back(*oldm);
 508                 }
 509                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 510                 // to be removed.
 511                 int rem = 0, add = 0;
 512                 if (!removed_modules.empty())
 513                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 514                 {
 515                         if (UnloadModule(removing->c_str()))
 516                         {
 517                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 518                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 519                                 rem++;
 520                         }
 521                         else
 522                         {
 523                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 524                         }
 525                 }
 526                 if (!added_modules.empty())
 527                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 528                 {
 529                         if (LoadModule(adding->c_str()))
 530                         {
 531                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 532                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 533                                 add++;
 534                         }
 535                         else
 536                         {
 537                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 538                         }
 539                 }
 540                 log(DEFAULT,"Successfully unloaded %d of %d modules and loaded %d of %d modules.",rem,removed_modules.size(),add,added_modules.size());
 541         }
 542 }
 543
 544 /* write formatted text to a socket, in same format as printf */
 545
 546 void Write(int sock,char *text, ...)
 547 {
 548         if (sock == FD_MAGIC_NUMBER)
 549                 return;
 550         if (!text)
 551         {
 552                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 553                 return;
 554         }
 555         char textbuffer[MAXBUF];
 556         va_list argsPtr;
 557         char tb[MAXBUF];
 558
 559         va_start (argsPtr, text);
 560         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 561         va_end(argsPtr);
 562         snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 563         chop(tb);
 564         if (sock != -1)
 565         {
 566                 write(sock,tb,strlen(tb));
 567         }
 568 }
 569
 570 /* write a server formatted numeric response to a single socket */
 571
 572 void WriteServ(int sock, char* text, ...)
 573 {
 574         if (sock == FD_MAGIC_NUMBER)
 575                 return;
 576         if (!text)
 577         {
 578                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 579                 return;
 580         }
 581         char textbuffer[MAXBUF],tb[MAXBUF];
 582         va_list argsPtr;
 583         va_start (argsPtr, text);
 584
 585         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 586         va_end(argsPtr);
 587         snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 588         chop(tb);
 589         if (sock != -1)
 590         {
 591                 write(sock,tb,strlen(tb));
 592         }
 593 }
 594
 595 /* write text from an originating user to originating user */
 596
 597 void WriteFrom(int sock, userrec *user,char* text, ...)
 598 {
 599         if (sock == FD_MAGIC_NUMBER)
 600                 return;
 601         if ((!text) || (!user))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF],tb[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609
 610         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 611         va_end(argsPtr);
 612         snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 613         chop(tb);
 614         if (sock != -1)
 615         {
 616                 write(sock,tb,strlen(tb));
 617         }
 618 }
 619
 620 /* write text to an destination user from a source user (e.g. user privmsg) */
 621
 622 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 623 {
 624         if ((!dest) || (!data))
 625         {
 626                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 627                 return;
 628         }
 629         if (dest->fd == FD_MAGIC_NUMBER)
 630                 return;
 631         char textbuffer[MAXBUF],tb[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, data);
 634         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 635         va_end(argsPtr);
 636         chop(tb);
 637
 638         // if no source given send it from the server.
 639         if (!source)
 640         {
 641                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 642         }
 643         else
 644         {
 645                 WriteFrom(dest->fd,source,"%s",textbuffer);
 646         }
 647 }
 648
 649 /* write formatted text from a source user to all users on a channel
 650  * including the sender (NOT for privmsg, notice etc!) */
 651
 652 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 653 {
 654         if ((!Ptr) || (!user) || (!text))
 655         {
 656                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 657                 return;
 658         }
 659         char textbuffer[MAXBUF];
 660         va_list argsPtr;
 661         va_start (argsPtr, text);
 662         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 663         va_end(argsPtr);
 664         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 665         {
 666                 if (has_channel(i->second,Ptr))
 667                 {
 668                         if (i->second->fd != FD_MAGIC_NUMBER)
 669                                 WriteTo(user,i->second,"%s",textbuffer);
 670                 }
 671         }
 672 }
 673
 674 /* write formatted text from a source user to all users on a channel
 675  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 676  * users on remote servers */
 677
 678 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 679 {
 680         if ((!Ptr) || (!text))
 681         {
 682                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 683                 return;
 684         }
 685         char textbuffer[MAXBUF];
 686         va_list argsPtr;
 687         va_start (argsPtr, text);
 688         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 689         va_end(argsPtr);
 690         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 691         {
 692                 if (has_channel(i->second,Ptr))
 693                 {
 694                         if ((i->second->fd != -1) && (i->second->fd != FD_MAGIC_NUMBER))
 695                         {
 696                                 if (!user)
 697                                 {
 698                                         WriteServ(i->second->fd,"%s",textbuffer);
 699                                 }
 700                                 else
 701                                 {
 702                                         WriteTo(user,i->second,"%s",textbuffer);
 703                                 }
 704                         }
 705                 }
 706         }
 707 }
 708
 709
 710 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 711 {
 712         if ((!Ptr) || (!user) || (!text))
 713         {
 714                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 715                 return;
 716         }
 717         char textbuffer[MAXBUF];
 718         va_list argsPtr;
 719         va_start (argsPtr, text);
 720         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 721         va_end(argsPtr);
 722         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 723         {
 724                 if (i->second)
 725                 {
 726                         if ((has_channel(i->second,Ptr)) && (i->second->fd != FD_MAGIC_NUMBER))
 727                         {
 728                                 WriteServ(i->second->fd,"%s",textbuffer);
 729                         }
 730                 }
 731         }
 732 }
 733
 734
 735 /* write formatted text from a source user to all users on a channel except
 736  * for the sender (for privmsg etc) */
 737
 738 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 739 {
 740         if ((!Ptr) || (!user) || (!text))
 741         {
 742                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 743                 return;
 744         }
 745         char textbuffer[MAXBUF];
 746         va_list argsPtr;
 747         va_start (argsPtr, text);
 748         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 749         va_end(argsPtr);
 750
 751         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 752         {
 753                 if (i->second)
 754                 {
 755                         if ((has_channel(i->second,Ptr)) && (user != i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 756                         {
 757                                 WriteTo(user,i->second,"%s",textbuffer);
 758                         }
 759                 }
 760         }
 761 }
 762
 763
 764 std::string GetServerDescription(char* servername)
 765 {
 766         for (int j = 0; j < 32; j++)
 767         {
 768                 if (me[j] != NULL)
 769                 {
 770                         for (int k = 0; k < me[j]->connectors.size(); k++)
 771                         {
 772                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 773                                 {
 774                                         return me[j]->connectors[k].GetDescription();
 775                                 }
 776                         }
 777                 }
 778                 return ServerDesc; // not a remote server that can be found, it must be me.
 779         }
 780 }
 781
 782
 783 /* write a formatted string to all users who share at least one common
 784  * channel, including the source user e.g. for use in NICK */
 785
 786 void WriteCommon(userrec *u, char* text, ...)
 787 {
 788         if (!u)
 789         {
 790                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 791                 return;
 792         }
 793
 794         if (u->registered != 7) {
 795                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 796                 return;
 797         }
 798
 799         char textbuffer[MAXBUF];
 800         va_list argsPtr;
 801         va_start (argsPtr, text);
 802         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 803         va_end(argsPtr);
 804
 805         WriteFrom(u->fd,u,"%s",textbuffer);
 806
 807         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 808         {
 809                 if (i->second)
 810                 {
 811                         if ((common_channels(u,i->second) && (i->second != u)) && (i->second->fd != FD_MAGIC_NUMBER))
 812                         {
 813                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 814                         }
 815                 }
 816         }
 817 }
 818
 819 /* write a formatted string to all users who share at least one common
 820  * channel, NOT including the source user e.g. for use in QUIT */
 821
 822 void WriteCommonExcept(userrec *u, char* text, ...)
 823 {
 824         if (!u)
 825         {
 826                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 827                 return;
 828         }
 829
 830         if (u->registered != 7) {
 831                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 832                 return;
 833         }
 834
 835         char textbuffer[MAXBUF];
 836         va_list argsPtr;
 837         va_start (argsPtr, text);
 838         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 839         va_end(argsPtr);
 840
 841         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 842         {
 843                 if (i->second)
 844                 {
 845                         if ((common_channels(u,i->second)) && (u != i->second))
 846                         {
 847                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 848                         }
 849                 }
 850         }
 851 }
 852
 853 void WriteOpers(char* text, ...)
 854 {
 855         if (!text)
 856         {
 857                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 858                 return;
 859         }
 860
 861         char textbuffer[MAXBUF];
 862         va_list argsPtr;
 863         va_start (argsPtr, text);
 864         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 865         va_end(argsPtr);
 866
 867         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 868         {
 869                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 870                 {
 871                         if (strchr(i->second->modes,'o'))
 872                         {
 873                                 if (strchr(i->second->modes,'s'))
 874                                 {
 875                                         // send server notices to all with +s
 876                                         // (TODO: needs SNOMASKs)
 877                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 878                                 }
 879                         }
 880                 }
 881         }
 882 }
 883
 884 // returns TRUE of any users on channel C occupy server 'servername'.
 885
 886 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 887 {
 888         log(DEBUG,"ChanAnyOnThisServer");
 889         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 890         {
 891                 if (has_channel(i->second,c))
 892                 {
 893                         if (!strcasecmp(i->second->server,servername))
 894                         {
 895                                 return true;
 896                         }
 897                 }
 898         }
 899         return false;
 900 }
 901
 902 // returns true if user 'u' shares any common channels with any users on server 'servername'
 903
 904 bool CommonOnThisServer(userrec* u,const char* servername)
 905 {
 906         log(DEBUG,"ChanAnyOnThisServer");
 907         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 908         {
 909                 if ((common_channels(u,i->second)) && (u != i->second))
 910                 {
 911                         if (!strcasecmp(i->second->server,servername))
 912                         {
 913                                 log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 914                                 return true;
 915                         }
 916                 }
 917         }
 918         return false;
 919 }
 920
 921
 922 void NetSendToCommon(userrec* u, char* s)
 923 {
 924         char buffer[MAXBUF];
 925         snprintf(buffer,MAXBUF,"%s",s);
 926
 927         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
 928
 929         std::string msg = buffer;
 930         FOREACH_MOD OnPacketTransmit(msg,s);
 931         strlcpy(buffer,msg.c_str(),MAXBUF);
 932
 933         for (int j = 0; j < 32; j++)
 934         {
 935                 if (me[j] != NULL)
 936                 {
 937                         for (int k = 0; k < me[j]->connectors.size(); k++)
 938                         {
 939                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 940                                 {
 941                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 942                                 }
 943                         }
 944                 }
 945         }
 946 }
 947
 948
 949 void NetSendToAll(char* s)
 950 {
 951         char buffer[MAXBUF];
 952         snprintf(buffer,MAXBUF,"%s",s);
 953
 954         log(DEBUG,"NetSendToAll: '%s'",s);
 955
 956         std::string msg = buffer;
 957         FOREACH_MOD OnPacketTransmit(msg,s);
 958         strlcpy(buffer,msg.c_str(),MAXBUF);
 959
 960         for (int j = 0; j < 32; j++)
 961         {
 962                 if (me[j] != NULL)
 963                 {
 964                         for (int k = 0; k < me[j]->connectors.size(); k++)
 965                         {
 966                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 967                         }
 968                 }
 969         }
 970 }
 971
 972 void NetSendToAllAlive(char* s)
 973 {
 974         char buffer[MAXBUF];
 975         snprintf(buffer,MAXBUF,"%s",s);
 976
 977         log(DEBUG,"NetSendToAllAlive: '%s'",s);
 978
 979         std::string msg = buffer;
 980         FOREACH_MOD OnPacketTransmit(msg,s);
 981         strlcpy(buffer,msg.c_str(),MAXBUF);
 982
 983         for (int j = 0; j < 32; j++)
 984         {
 985                 if (me[j] != NULL)
 986                 {
 987                         for (int k = 0; k < me[j]->connectors.size(); k++)
 988                         {
 989                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
 990                                 {
 991                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 992                                 }
 993                                 else
 994                                 {
 995                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
 996                                 }
 997                         }
 998                 }
 999         }
1000 }
1001
1002
1003 void NetSendToOne(char* target,char* s)
1004 {
1005         char buffer[MAXBUF];
1006         snprintf(buffer,MAXBUF,"%s",s);
1007
1008         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1009
1010         std::string msg = buffer;
1011         FOREACH_MOD OnPacketTransmit(msg,s);
1012         strlcpy(buffer,msg.c_str(),MAXBUF);
1013
1014         for (int j = 0; j < 32; j++)
1015         {
1016                 if (me[j] != NULL)
1017                 {
1018                         for (int k = 0; k < me[j]->connectors.size(); k++)
1019                         {
1020                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1021                                 {
1022                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1023                                 }
1024                         }
1025                 }
1026         }
1027 }
1028
1029 void NetSendToAllExcept(const char* target,char* s)
1030 {
1031         char buffer[MAXBUF];
1032         snprintf(buffer,MAXBUF,"%s",s);
1033
1034         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1035
1036         std::string msg = buffer;
1037         FOREACH_MOD OnPacketTransmit(msg,s);
1038         strlcpy(buffer,msg.c_str(),MAXBUF);
1039
1040         for (int j = 0; j < 32; j++)
1041         {
1042                 if (me[j] != NULL)
1043                 {
1044                         for (int k = 0; k < me[j]->connectors.size(); k++)
1045                         {
1046                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1047                                 {
1048                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1049                                 }
1050                         }
1051                 }
1052         }
1053 }
1054
1055
1056 void WriteMode(const char* modes, int flags, const char* text, ...)
1057 {
1058         if ((!text) || (!modes) || (!flags))
1059         {
1060                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1061                 return;
1062         }
1063
1064         char textbuffer[MAXBUF];
1065         va_list argsPtr;
1066         va_start (argsPtr, text);
1067         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1068         va_end(argsPtr);
1069
1070         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1071         {
1072                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1073                 {
1074                         bool send_to_user = false;
1075
1076                         if (flags == WM_AND)
1077                         {
1078                                 send_to_user = true;
1079                                 for (int n = 0; n < strlen(modes); n++)
1080                                 {
1081                                         if (!hasumode(i->second,modes[n]))
1082                                         {
1083                                                 send_to_user = false;
1084                                                 break;
1085                                         }
1086                                 }
1087                         }
1088                         else if (flags == WM_OR)
1089                         {
1090                                 send_to_user = false;
1091                                 for (int n = 0; n < strlen(modes); n++)
1092                                 {
1093                                         if (hasumode(i->second,modes[n]))
1094                                         {
1095                                                 send_to_user = true;
1096                                                 break;
1097                                         }
1098                                 }
1099                         }
1100
1101                         if (send_to_user)
1102                         {
1103                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1104                         }
1105                 }
1106         }
1107 }
1108
1109
1110 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1111 {
1112         if ((!text) || (!source))
1113         {
1114                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1115                 return;
1116         }
1117
1118         int i = 0;
1119         char textbuffer[MAXBUF];
1120         va_list argsPtr;
1121         va_start (argsPtr, text);
1122         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1123         va_end(argsPtr);
1124
1125         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1126         {
1127                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1128                 {
1129                         if (strchr(i->second->modes,'w'))
1130                         {
1131                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1132                         }
1133                 }
1134         }
1135
1136         if (!local_only)
1137         {
1138                 char buffer[MAXBUF];
1139                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1140                 NetSendToAll(buffer);
1141         }
1142 }
1143
1144 /* convert a string to lowercase. Note following special circumstances
1145  * taken from RFC 1459. Many "official" server branches still hold to this
1146  * rule so i will too;
1147  *
1148  *  Because of IRC's scandanavian origin, the characters {}| are
1149  *  considered to be the lower case equivalents of the characters []\,
1150  *  respectively. This is a critical issue when determining the
1151  *  equivalence of two nicknames.
1152  */
1153
1154 void strlower(char *n)
1155 {
1156         if (!n)
1157         {
1158                 return;
1159         }
1160         for (int i = 0; i != strlen(n); i++)
1161         {
1162                 n[i] = tolower(n[i]);
1163                 if (n[i] == '[')
1164                         n[i] = '{';
1165                 if (n[i] == ']')
1166                         n[i] = '}';
1167                 if (n[i] == '\\')
1168                         n[i] = '|';
1169         }
1170 }
1171
1172
1173
1174 /* Find a user record by nickname and return a pointer to it */
1175
1176 userrec* Find(std::string nick)
1177 {
1178         user_hash::iterator iter = clientlist.find(nick);
1179
1180         if (iter == clientlist.end())
1181                 /* Couldn't find it */
1182                 return NULL;
1183
1184         return iter->second;
1185 }
1186
1187 /* find a channel record by channel name and return a pointer to it */
1188
1189 chanrec* FindChan(const char* chan)
1190 {
1191         if (!chan)
1192         {
1193                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1194                 return NULL;
1195         }
1196
1197         chan_hash::iterator iter = chanlist.find(chan);
1198
1199         if (iter == chanlist.end())
1200                 /* Couldn't find it */
1201                 return NULL;
1202
1203         return iter->second;
1204 }
1205
1206
1207 long GetMaxBans(char* name)
1208 {
1209         char CM[MAXBUF];
1210         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1211         {
1212                 ConfValue("banlist","chan",count,CM,&config_f);
1213                 if (match(name,CM))
1214                 {
1215                         ConfValue("banlist","limit",count,CM,&config_f);
1216                         return atoi(CM);
1217                 }
1218         }
1219         return 64;
1220 }
1221
1222
1223 void purge_empty_chans(void)
1224 {
1225         int go_again = 1, purge = 0;
1226
1227         while (go_again)
1228         {
1229                 go_again = 0;
1230                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1231                 {
1232                         if (i->second) {
1233                                 if (!usercount(i->second))
1234                                 {
1235                                         /* kill the record */
1236                                         if (i != chanlist.end())
1237                                         {
1238                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1239                                                 if (i->second)
1240                                                         delete i->second;
1241                                                 chanlist.erase(i);
1242                                                 go_again = 1;
1243                                                 purge++;
1244                                                 break;
1245                                         }
1246                                 }
1247                                 else
1248                                 {
1249                                         log(DEBUG,"skipped purge for %s",i->second->name);
1250                                 }
1251                         }
1252                 }
1253         }
1254         log(DEBUG,"completed channel purge, killed %d",purge);
1255 }
1256
1257
1258 char scratch[MAXBUF];
1259 char sparam[MAXBUF];
1260
1261 char* chanmodes(chanrec *chan)
1262 {
1263         if (!chan)
1264         {
1265                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1266                 strcpy(scratch,"");
1267                 return scratch;
1268         }
1269
1270         strcpy(scratch,"");
1271         strcpy(sparam,"");
1272         if (chan->noexternal)
1273         {
1274                 strlcat(scratch,"n",MAXMODES);
1275         }
1276         if (chan->topiclock)
1277         {
1278                 strlcat(scratch,"t",MAXMODES);
1279         }
1280         if (strcmp(chan->key,""))
1281         {
1282                 strlcat(scratch,"k",MAXMODES);
1283         }
1284         if (chan->limit)
1285         {
1286                 strlcat(scratch,"l",MAXMODES);
1287         }
1288         if (chan->inviteonly)
1289         {
1290                 strlcat(scratch,"i",MAXMODES);
1291         }
1292         if (chan->moderated)
1293         {
1294                 strlcat(scratch,"m",MAXMODES);
1295         }
1296         if (chan->secret)
1297         {
1298                 strlcat(scratch,"s",MAXMODES);
1299         }
1300         if (chan->c_private)
1301         {
1302                 strlcat(scratch,"p",MAXMODES);
1303         }
1304         if (strcmp(chan->key,""))
1305         {
1306                 strlcat(sparam," ",MAXBUF);
1307                 strlcat(sparam,chan->key,MAXBUF);
1308         }
1309         if (chan->limit)
1310         {
1311                 char foo[24];
1312                 sprintf(foo," %d",chan->limit);
1313                 strlcat(sparam,foo,MAXBUF);
1314         }
1315         if (strlen(chan->custom_modes))
1316         {
1317                 strlcat(scratch,chan->custom_modes,MAXMODES);
1318                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1319                 {
1320                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1321                         if (extparam != "")
1322                         {
1323                                 strlcat(sparam," ",MAXBUF);
1324                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1325                         }
1326                 }
1327         }
1328         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1329         strlcat(scratch,sparam,MAXMODES);
1330         return scratch;
1331 }
1332
1333
1334 /* compile a userlist of a channel into a string, each nick seperated by
1335  * spaces and op, voice etc status shown as @ and + */
1336
1337 void userlist(userrec *user,chanrec *c)
1338 {
1339         if ((!c) || (!user))
1340         {
1341                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1342                 return;
1343         }
1344
1345         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1346         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1347         {
1348                 if (has_channel(i->second,c))
1349                 {
1350                         if (isnick(i->second->nick))
1351                         {
1352                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1353                                 {
1354                                         /* user is +i, and source not on the channel, does not show
1355                                          * nick in NAMES list */
1356                                         continue;
1357                                 }
1358                                 strlcat(list,cmode(i->second,c),MAXBUF);
1359                                 strlcat(list,i->second->nick,MAXBUF);
1360                                 strlcat(list," ",MAXBUF);
1361                                 if (strlen(list)>(480-NICKMAX))
1362                                 {
1363                                         /* list overflowed into
1364                                          * multiple numerics */
1365                                         WriteServ(user->fd,"%s",list);
1366                                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1367                                 }
1368                         }
1369                 }
1370         }
1371         /* if whats left in the list isnt empty, send it */     if (list[strlen(list)-1] != ':')
1372         {
1373                 WriteServ(user->fd,"%s",list);
1374         }
1375 }
1376
1377 /* return a count of the users on a specific channel accounting for
1378  * invisible users who won't increase the count. e.g. for /LIST */
1379
1380 int usercount_i(chanrec *c)
1381 {
1382         int i = 0;
1383         int count = 0;
1384
1385         if (!c)
1386         {
1387                 log(DEFAULT,"*** BUG *** usercount_i 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))
1399                                 {
1400                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1401                                         {
1402                                                 /* user is +i, and source not on the channel, does not show
1403                                                  * nick in NAMES list */
1404                                                 continue;
1405                                         }
1406                                         count++;
1407                                 }
1408                         }
1409                 }
1410         }
1411         log(DEBUG,"usercount_i: %s %d",c->name,count);
1412         return count;
1413 }
1414
1415
1416 int usercount(chanrec *c)
1417 {
1418         int i = 0;
1419         int count = 0;
1420
1421         if (!c)
1422         {
1423                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1424                 return 0;
1425         }
1426
1427         strcpy(list,"");
1428         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1429         {
1430                 if (i->second)
1431                 {
1432                         if (has_channel(i->second,c))
1433                         {
1434                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1435                                 {
1436                                         count++;
1437                                 }
1438                         }
1439                 }
1440         }
1441         log(DEBUG,"usercount: %s %d",c->name,count);
1442         return count;
1443 }
1444
1445
1446 /* add a channel to a user, creating the record for it if needed and linking
1447  * it to the user record */
1448
1449 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1450 {
1451         if ((!user) || (!cn))
1452         {
1453                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1454                 return 0;
1455         }
1456
1457         int i = 0;
1458         chanrec* Ptr;
1459         int created = 0;
1460         char cname[MAXBUF];
1461
1462         strncpy(cname,cn,MAXBUF);
1463
1464         // we MUST declare this wherever we use FOREACH_RESULT
1465         int MOD_RESULT = 0;
1466
1467         if (strlen(cname) > CHANMAX-1)
1468         {
1469                 cname[CHANMAX-1] = '\0';
1470         }
1471
1472         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1473
1474         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1475         {
1476                 return NULL; // already on the channel!
1477         }
1478
1479
1480         if (!FindChan(cname))
1481         {
1482                 int MOD_RESULT = 0;
1483                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1484                 if (MOD_RESULT == 1) {
1485                         return NULL;
1486                 }
1487
1488                 /* create a new one */
1489                 log(DEBUG,"add_channel: creating: %s",cname);
1490                 {
1491                         chanlist[cname] = new chanrec();
1492
1493                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1494                         chanlist[cname]->topiclock = 1;
1495                         chanlist[cname]->noexternal = 1;
1496                         chanlist[cname]->created = TIME;
1497                         strcpy(chanlist[cname]->topic, "");
1498                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1499                         chanlist[cname]->topicset = 0;
1500                         Ptr = chanlist[cname];
1501                         log(DEBUG,"add_channel: created: %s",cname);
1502                         /* set created to 2 to indicate user
1503                          * is the first in the channel
1504                          * and should be given ops */
1505                         created = 2;
1506                 }
1507         }
1508         else
1509         {
1510                 /* channel exists, just fish out a pointer to its struct */
1511                 Ptr = FindChan(cname);
1512                 if (Ptr)
1513                 {
1514                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1515
1516                         // the override flag allows us to bypass channel modes
1517                         // and bans (used by servers)
1518                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1519                         {
1520                                 log(DEBUG,"Not overriding...");
1521                                 int MOD_RESULT = 0;
1522                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1523                                 if (MOD_RESULT == 1) {
1524                                         return NULL;
1525                                 }
1526                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1527
1528                                 if (!MOD_RESULT)
1529                                 {
1530                                         log(DEBUG,"add_channel: checking key, invite, etc");
1531                                         int MOD_RESULT = 0;
1532                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1533                                         if (MOD_RESULT == 0)
1534                                         {
1535                                                 if (strcmp(Ptr->key,""))
1536                                                 {
1537                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1538                                                         if (!key)
1539                                                         {
1540                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1541                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1542                                                                 return NULL;
1543                                                         }
1544                                                         else
1545                                                         {
1546                                                                 if (strcasecmp(key,Ptr->key))
1547                                                                 {
1548                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1549                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1550                                                                         return NULL;
1551                                                                 }
1552                                                         }
1553                                                 }
1554                                                 log(DEBUG,"add_channel: no key");
1555                                         }
1556                                         MOD_RESULT = 0;
1557                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1558                                         if (MOD_RESULT == 0)
1559                                         {
1560                                                 if (Ptr->inviteonly)
1561                                                 {
1562                                                         log(DEBUG,"add_channel: channel is +i");
1563                                                         if (user->IsInvited(Ptr->name))
1564                                                         {
1565                                                                 /* user was invited to channel */
1566                                                                 /* there may be an optional channel NOTICE here */
1567                                                         }
1568                                                         else
1569                                                         {
1570                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1571                                                                 return NULL;
1572                                                         }
1573                                                 }
1574                                                 log(DEBUG,"add_channel: channel is not +i");
1575                                         }
1576                                         MOD_RESULT = 0;
1577                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1578                                         if (MOD_RESULT == 0)
1579                                         {
1580                                                 if (Ptr->limit)
1581                                                 {
1582                                                         if (usercount(Ptr) >= Ptr->limit)
1583                                                         {
1584                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1585                                                                 return NULL;
1586                                                         }
1587                                                 }
1588                                         }
1589                                         log(DEBUG,"add_channel: about to walk banlist");
1590                                         MOD_RESULT = 0;
1591                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1592                                         if (MOD_RESULT == 0)
1593                                         {
1594                                                 /* check user against the channel banlist */
1595                                                 if (Ptr)
1596                                                 {
1597                                                         if (Ptr->bans.size())
1598                                                         {
1599                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1600                                                                 {
1601                                                                         if (match(user->GetFullHost(),i->data))
1602                                                                         {
1603                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1604                                                                                 return NULL;
1605                                                                         }
1606                                                                 }
1607                                                         }
1608                                                 }
1609                                                 log(DEBUG,"add_channel: bans checked");
1610                                         }
1611
1612                                 }
1613
1614
1615                                 if ((Ptr) && (user))
1616                                 {
1617                                         user->RemoveInvite(Ptr->name);
1618                                 }
1619
1620                                 log(DEBUG,"add_channel: invites removed");
1621
1622                         }
1623                         else
1624                         {
1625                                 log(DEBUG,"Overridden checks");
1626                         }
1627
1628
1629                 }
1630                 created = 1;
1631         }
1632
1633         log(DEBUG,"Passed channel checks");
1634
1635         for (int i =0; i != MAXCHANS; i++)
1636         {
1637                 log(DEBUG,"Check location %d",i);
1638                 if (user->chans[i].channel == NULL)
1639                 {
1640                         log(DEBUG,"Adding into their channel list at location %d",i);
1641
1642                         if (created == 2)
1643                         {
1644                                 /* first user in is given ops */
1645                                 user->chans[i].uc_modes = UCMODE_OP;
1646                         }
1647                         else
1648                         {
1649                                 user->chans[i].uc_modes = 0;
1650                         }
1651                         user->chans[i].channel = Ptr;
1652                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1653
1654                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1655                         {
1656                                 // use the stamdard J token with no privilages.
1657                                 char buffer[MAXBUF];
1658                                 if (created == 2)
1659                                 {
1660                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1661                                 }
1662                                 else
1663                                 {
1664                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1665                                 }
1666                                 NetSendToAll(buffer);
1667                         }
1668
1669                         log(DEBUG,"Sent JOIN to client");
1670
1671                         if (Ptr->topicset)
1672                         {
1673                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1674                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1675                         }
1676                         userlist(user,Ptr);
1677                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1678                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1679                         //WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1680                         FOREACH_MOD OnUserJoin(user,Ptr);
1681                         return Ptr;
1682                 }
1683         }
1684         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1685         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1686         return NULL;
1687 }
1688
1689 /* remove a channel from a users record, and remove the record from memory
1690  * if the channel has become empty */
1691
1692 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1693 {
1694         if ((!user) || (!cname))
1695         {
1696                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1697                 return NULL;
1698         }
1699
1700         chanrec* Ptr;
1701         int created = 0;
1702
1703         if ((!cname) || (!user))
1704         {
1705                 return NULL;
1706         }
1707
1708         Ptr = FindChan(cname);
1709
1710         if (!Ptr)
1711         {
1712                 return NULL;
1713         }
1714
1715         FOREACH_MOD OnUserPart(user,Ptr);
1716         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1717
1718         for (int i =0; i != MAXCHANS; i++)
1719         {
1720                 /* zap it from the channel list of the user */
1721                 if (user->chans[i].channel == Ptr)
1722                 {
1723                         if (reason)
1724                         {
1725                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1726
1727                                 if (!local)
1728                                 {
1729                                         char buffer[MAXBUF];
1730                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1731                                         NetSendToAll(buffer);
1732                                 }
1733
1734
1735                         }
1736                         else
1737                         {
1738                                 if (!local)
1739                                 {
1740                                         char buffer[MAXBUF];
1741                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1742                                         NetSendToAll(buffer);
1743                                 }
1744
1745                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1746                         }
1747                         user->chans[i].uc_modes = 0;
1748                         user->chans[i].channel = NULL;
1749                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1750                         break;
1751                 }
1752         }
1753
1754         /* if there are no users left on the channel */
1755         if (!usercount(Ptr))
1756         {
1757                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1758
1759                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1760
1761                 /* kill the record */
1762                 if (iter != chanlist.end())
1763                 {
1764                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1765                         if (iter->second) delete iter->second;
1766                         chanlist.erase(iter);
1767                 }
1768         }
1769 }
1770
1771
1772 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1773 {
1774         if ((!src) || (!user) || (!Ptr) || (!reason))
1775         {
1776                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1777                 return;
1778         }
1779
1780         int i = 0;
1781         int created = 0;
1782
1783         if ((!Ptr) || (!user) || (!src))
1784         {
1785                 return;
1786         }
1787
1788         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1789
1790         if (!has_channel(user,Ptr))
1791         {
1792                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1793                 return;
1794         }
1795
1796         int MOD_RESULT = 0;
1797         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1798         if (MOD_RESULT == ACR_DENY)
1799                 return;
1800
1801         if (MOD_RESULT == ACR_DEFAULT)
1802         {
1803                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1804                 {
1805                         if (cstatus(src,Ptr) == STATUS_HOP)
1806                         {
1807                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1808                         }
1809                         else
1810                         {
1811                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1812                         }
1813
1814                         return;
1815                 }
1816         }
1817
1818         MOD_RESULT = 0;
1819         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1820         if (MOD_RESULT)
1821                 return;
1822
1823         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1824
1825         for (int i =0; i != MAXCHANS; i++)
1826         {
1827                 /* zap it from the channel list of the user */
1828                 if (user->chans[i].channel)
1829                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1830                 {
1831                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1832                         user->chans[i].uc_modes = 0;
1833                         user->chans[i].channel = NULL;
1834                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1835                         break;
1836                 }
1837         }
1838
1839         /* if there are no users left on the channel */
1840         if (!usercount(Ptr))
1841         {
1842                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1843
1844                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1845
1846                 /* kill the record */
1847                 if (iter != chanlist.end())
1848                 {
1849                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1850                         if (iter->second) delete iter->second;
1851                         chanlist.erase(iter);
1852                 }
1853         }
1854 }
1855
1856
1857
1858
1859 /* This function pokes and hacks at a parameter list like the following:
1860  *
1861  * PART #winbot,#darkgalaxy :m00!
1862  *
1863  * to turn it into a series of individual calls like this:
1864  *
1865  * PART #winbot :m00!
1866  * PART #darkgalaxy :m00!
1867  *
1868  * The seperate calls are sent to a callback function provided by the caller
1869  * (the caller will usually call itself recursively). The callback function
1870  * must be a command handler. Calling this function on a line with no list causes
1871  * no action to be taken. You must provide a starting and ending parameter number
1872  * where the range of the list can be found, useful if you have a terminating
1873  * parameter as above which is actually not part of the list, or parameters
1874  * before the actual list as well. This code is used by many functions which
1875  * can function as "one to list" (see the RFC) */
1876
1877 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
1878 {
1879         char plist[MAXBUF];
1880         char *param;
1881         char *pars[32];
1882         char blog[32][MAXBUF];
1883         char blog2[32][MAXBUF];
1884         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
1885         char keystr[MAXBUF];
1886         char moo[MAXBUF];
1887
1888         for (int i = 0; i <32; i++)
1889                 strcpy(blog[i],"");
1890
1891         for (int i = 0; i <32; i++)
1892                 strcpy(blog2[i],"");
1893
1894         strcpy(moo,"");
1895         for (int i = 0; i <10; i++)
1896         {
1897                 if (!parameters[i])
1898                 {
1899                         parameters[i] = moo;
1900                 }
1901         }
1902         if (joins)
1903         {
1904                 if (pcnt > 1) /* we have a key to copy */
1905                 {
1906                         strlcpy(keystr,parameters[1],MAXBUF);
1907                 }
1908         }
1909
1910         if (!parameters[start])
1911         {
1912                 return 0;
1913         }
1914         if (!strchr(parameters[start],','))
1915         {
1916                 return 0;
1917         }
1918         strcpy(plist,"");
1919         for (int i = start; i <= end; i++)
1920         {
1921                 if (parameters[i])
1922                 {
1923                         strlcat(plist,parameters[i],MAXBUF);
1924                 }
1925         }
1926
1927         j = 0;
1928         param = plist;
1929
1930         t = strlen(plist);
1931         for (int i = 0; i < t; i++)
1932         {
1933                 if (plist[i] == ',')
1934                 {
1935                         plist[i] = '\0';
1936                         strlcpy(blog[j++],param,MAXBUF);
1937                         param = plist+i+1;
1938                         if (j>20)
1939                         {
1940                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
1941                                 return 1;
1942                         }
1943                 }
1944         }
1945         strlcpy(blog[j++],param,MAXBUF);
1946         total = j;
1947
1948         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
1949         {
1950                 strcat(keystr,",");
1951         }
1952
1953         if ((joins) && (keystr))
1954         {
1955                 if (strchr(keystr,','))
1956                 {
1957                         j = 0;
1958                         param = keystr;
1959                         t2 = strlen(keystr);
1960                         for (int i = 0; i < t2; i++)
1961                         {
1962                                 if (keystr[i] == ',')
1963                                 {
1964                                         keystr[i] = '\0';
1965                                         strlcpy(blog2[j++],param,MAXBUF);
1966                                         param = keystr+i+1;
1967                                 }
1968                         }
1969                         strlcpy(blog2[j++],param,MAXBUF);
1970                         total2 = j;
1971                 }
1972         }
1973
1974         for (j = 0; j < total; j++)
1975         {
1976                 if (blog[j])
1977                 {
1978                         pars[0] = blog[j];
1979                 }
1980                 for (q = end; q < pcnt-1; q++)
1981                 {
1982                         if (parameters[q+1])
1983                         {
1984                                 pars[q-end+1] = parameters[q+1];
1985                         }
1986                 }
1987                 if ((joins) && (parameters[1]))
1988                 {
1989                         if (pcnt > 1)
1990                         {
1991                                 pars[1] = blog2[j];
1992                         }
1993                         else
1994                         {
1995                                 pars[1] = NULL;
1996                         }
1997                 }
1998                 /* repeatedly call the function with the hacked parameter list */
1999                 if ((joins) && (pcnt > 1))
2000                 {
2001                         if (pars[1])
2002                         {
2003                                 // pars[1] already set up and containing key from blog2[j]
2004                                 fn(pars,2,u);
2005                         }
2006                         else
2007                         {
2008                                 pars[1] = parameters[1];
2009                                 fn(pars,2,u);
2010                         }
2011                 }
2012                 else
2013                 {
2014                         fn(pars,pcnt-(end-start),u);
2015                 }
2016         }
2017
2018         return 1;
2019 }
2020
2021
2022
2023 void kill_link(userrec *user,const char* r)
2024 {
2025         user_hash::iterator iter = clientlist.find(user->nick);
2026
2027         char reason[MAXBUF];
2028
2029         strncpy(reason,r,MAXBUF);
2030
2031         if (strlen(reason)>MAXQUIT)
2032         {
2033                 reason[MAXQUIT-1] = '\0';
2034         }
2035
2036         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2037         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2038         log(DEBUG,"closing fd %d",user->fd);
2039
2040         /* bugfix, cant close() a nonblocking socket (sux!) */
2041         if (user->registered == 7) {
2042                 FOREACH_MOD OnUserQuit(user);
2043                 WriteCommonExcept(user,"QUIT :%s",reason);
2044
2045                 // Q token must go to ALL servers!!!
2046                 char buffer[MAXBUF];
2047                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2048                 NetSendToAll(buffer);
2049         }
2050
2051         FOREACH_MOD OnUserDisconnect(user);
2052
2053         if (user->fd > -1)
2054         {
2055                 shutdown(user->fd,2);
2056                 close(user->fd);
2057         }
2058
2059         bool do_purge = false;
2060
2061         if (user->registered == 7) {
2062                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2063                 AddWhoWas(user);
2064         }
2065
2066         if (iter != clientlist.end())
2067         {
2068                 log(DEBUG,"deleting user hash value %d",iter->second);
2069                 if ((iter->second) && (user->registered == 7)) {
2070                         if (iter->second) delete iter->second;
2071                 }
2072                 clientlist.erase(iter);
2073         }
2074
2075         if (user->registered == 7) {
2076                 purge_empty_chans();
2077         }
2078         //user = NULL;
2079 }
2080
2081 void kill_link_silent(userrec *user,const char* r)
2082 {
2083         user_hash::iterator iter = clientlist.find(user->nick);
2084
2085         char reason[MAXBUF];
2086
2087         strncpy(reason,r,MAXBUF);
2088
2089         if (strlen(reason)>MAXQUIT)
2090         {
2091                 reason[MAXQUIT-1] = '\0';
2092         }
2093
2094         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2095         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2096         log(DEBUG,"closing fd %d",user->fd);
2097
2098         /* bugfix, cant close() a nonblocking socket (sux!) */
2099         if (user->registered == 7) {
2100                 FOREACH_MOD OnUserQuit(user);
2101                 WriteCommonExcept(user,"QUIT :%s",reason);
2102
2103                 // Q token must go to ALL servers!!!
2104                 char buffer[MAXBUF];
2105                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2106                 NetSendToAll(buffer);
2107         }
2108
2109         FOREACH_MOD OnUserDisconnect(user);
2110
2111         if (user->fd > -1)
2112         {
2113                 shutdown(user->fd,2);
2114                 close(user->fd);
2115         }
2116
2117         bool do_purge = false;
2118
2119         if (iter != clientlist.end())
2120         {
2121                 log(DEBUG,"deleting user hash value %d",iter->second);
2122                 if ((iter->second) && (user->registered == 7)) {
2123                         if (iter->second) delete iter->second;
2124                 }
2125                 clientlist.erase(iter);
2126         }
2127
2128         if (user->registered == 7) {
2129                 purge_empty_chans();
2130         }
2131 }
2132
2133
2134
2135 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2136
2137 char* Passwd(userrec *user)
2138 {
2139         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2140         {
2141                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2142                 {
2143                         return i->pass;
2144                 }
2145         }
2146         return "";
2147 }
2148
2149 bool IsDenied(userrec *user)
2150 {
2151         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2152         {
2153                 if (match(user->host,i->host) && (i->type == CC_DENY))
2154                 {
2155                         return true;
2156                 }
2157         }
2158         return false;
2159 }
2160
2161
2162
2163
2164 /* sends out an error notice to all connected clients (not to be used
2165  * lightly!) */
2166
2167 void send_error(char *s)
2168 {
2169         log(DEBUG,"send_error: %s",s);
2170         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2171         {
2172                 if (isnick(i->second->nick))
2173                 {
2174                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2175                 }
2176                 else
2177                 {
2178                         // fix - unregistered connections receive ERROR, not NOTICE
2179                         Write(i->second->fd,"ERROR :%s",s);
2180                 }
2181         }
2182 }
2183
2184 void Error(int status)
2185 {
2186         signal (SIGALRM, SIG_IGN);
2187         signal (SIGPIPE, SIG_IGN);
2188         signal (SIGTERM, SIG_IGN);
2189         signal (SIGABRT, SIG_IGN);
2190         signal (SIGSEGV, SIG_IGN);
2191         signal (SIGURG, SIG_IGN);
2192         signal (SIGKILL, SIG_IGN);
2193         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2194         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2195         Exit(status);
2196 }
2197
2198
2199 int main(int argc, char **argv)
2200 {
2201         Start();
2202         srand(time(NULL));
2203         log(DEBUG,"*** InspIRCd starting up!");
2204         if (!FileExists(CONFIG_FILE))
2205         {
2206                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2207                 log(DEFAULT,"main: no config");
2208                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2209                 Exit(ERROR);
2210         }
2211         if (argc > 1) {
2212                 for (int i = 1; i < argc; i++)
2213                 {
2214                         if (!strcmp(argv[i],"-nofork")) {
2215                                 nofork = true;
2216                         }
2217                         if (!strcmp(argv[i],"-wait")) {
2218                                 sleep(6);
2219                         }
2220                         if (!strcmp(argv[i],"-nolimit")) {
2221                                 unlimitcore = true;
2222                         }
2223                 }
2224         }
2225         strlcpy(MyExecutable,argv[0],MAXBUF);
2226
2227         if (InspIRCd() == ERROR)
2228         {
2229                 log(DEFAULT,"main: daemon function bailed");
2230                 printf("ERROR: could not initialise. Shutting down.\n");
2231                 Exit(ERROR);
2232         }
2233         Exit(TRUE);
2234         return 0;
2235 }
2236
2237 template<typename T> inline string ConvToStr(const T &in)
2238 {
2239         stringstream tmp;
2240         if (!(tmp << in)) return string();
2241         return tmp.str();
2242 }
2243
2244 /* re-allocates a nick in the user_hash after they change nicknames,
2245  * returns a pointer to the new user as it may have moved */
2246
2247 userrec* ReHashNick(char* Old, char* New)
2248 {
2249         user_hash::iterator newnick;
2250         user_hash::iterator oldnick = clientlist.find(Old);
2251
2252         log(DEBUG,"ReHashNick: %s %s",Old,New);
2253
2254         if (!strcasecmp(Old,New))
2255         {
2256                 log(DEBUG,"old nick is new nick, skipping");
2257                 return oldnick->second;
2258         }
2259
2260         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2261
2262         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2263
2264         clientlist[New] = new userrec();
2265         clientlist[New] = oldnick->second;
2266         clientlist.erase(oldnick);
2267
2268         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2269
2270         return clientlist[New];
2271 }
2272
2273 /* adds or updates an entry in the whowas list */
2274 void AddWhoWas(userrec* u)
2275 {
2276         user_hash::iterator iter = whowas.find(u->nick);
2277         userrec *a = new userrec();
2278         strlcpy(a->nick,u->nick,NICKMAX);
2279         strlcpy(a->ident,u->ident,64);
2280         strlcpy(a->dhost,u->dhost,256);
2281         strlcpy(a->host,u->host,256);
2282         strlcpy(a->fullname,u->fullname,128);
2283         strlcpy(a->server,u->server,256);
2284         a->signon = u->signon;
2285
2286         /* MAX_WHOWAS:   max number of /WHOWAS items
2287          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2288          *               can be replaced by a newer one
2289          */
2290
2291         if (iter == whowas.end())
2292         {
2293                 if (whowas.size() == WHOWAS_MAX)
2294                 {
2295                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2296                         {
2297                                 // 3600 seconds in an hour ;)
2298                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2299                                 {
2300                                         if (i->second) delete i->second;
2301                                         i->second = a;
2302                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2303                                         return;
2304                                 }
2305                         }
2306                 }
2307                 else
2308                 {
2309                         log(DEBUG,"added fresh WHOWAS entry");
2310                         whowas[a->nick] = a;
2311                 }
2312         }
2313         else
2314         {
2315                 log(DEBUG,"updated WHOWAS entry");
2316                 if (iter->second) delete iter->second;
2317                 iter->second = a;
2318         }
2319 }
2320
2321
2322 /* add a client connection to the sockets list */
2323 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2324 {
2325         int i;
2326         int blocking = 1;
2327         char resolved[MAXBUF];
2328         string tempnick;
2329         char tn2[MAXBUF];
2330         user_hash::iterator iter;
2331
2332         tempnick = ConvToStr(socket) + "-unknown";
2333         sprintf(tn2,"%d-unknown",socket);
2334
2335         iter = clientlist.find(tempnick);
2336
2337         if (iter != clientlist.end()) return;
2338
2339         /*
2340          * It is OK to access the value here this way since we know
2341          * it exists, we just created it above.
2342          *
2343          * At NO other time should you access a value in a map or a
2344          * hash_map this way.
2345          */
2346         clientlist[tempnick] = new userrec();
2347
2348         NonBlocking(socket);
2349         log(DEBUG,"AddClient: %d %s %d %s",socket,host,port,ip);
2350
2351         clientlist[tempnick]->fd = socket;
2352         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2353         strncpy(clientlist[tempnick]->host, host,160);
2354         strncpy(clientlist[tempnick]->dhost, host,160);
2355         strncpy(clientlist[tempnick]->server, ServerName,256);
2356         strncpy(clientlist[tempnick]->ident, "unknown",12);
2357         clientlist[tempnick]->registered = 0;
2358         clientlist[tempnick]->signon = TIME+dns_timeout;
2359         clientlist[tempnick]->lastping = 1;
2360         clientlist[tempnick]->port = port;
2361         strncpy(clientlist[tempnick]->ip,ip,32);
2362
2363         // set the registration timeout for this user
2364         unsigned long class_regtimeout = 90;
2365         int class_flood = 0;
2366
2367         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2368         {
2369                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2370                 {
2371                         class_regtimeout = (unsigned long)i->registration_timeout;
2372                         class_flood = i->flood;
2373                         clientlist[tempnick]->pingmax = i->pingtime;
2374                         break;
2375                 }
2376         }
2377
2378         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2379         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2380         clientlist[tempnick]->flood = class_flood;
2381
2382         for (int i = 0; i < MAXCHANS; i++)
2383         {
2384                 clientlist[tempnick]->chans[i].channel = NULL;
2385                 clientlist[tempnick]->chans[i].uc_modes = 0;
2386         }
2387
2388         if (clientlist.size() == MAXCLIENTS)
2389                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2390
2391
2392         char* e = matches_exception(ip);
2393         if (!e)
2394         {
2395                 char* r = matches_zline(ip);
2396                 if (r)
2397                 {
2398                         char reason[MAXBUF];
2399                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2400                         kill_link(clientlist[tempnick],reason);
2401                 }
2402         }
2403 }
2404
2405 // this function counts all users connected, wether they are registered or NOT.
2406 int usercnt(void)
2407 {
2408         return clientlist.size();
2409 }
2410
2411 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2412 int registered_usercount(void)
2413 {
2414         int c = 0;
2415         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2416         {
2417                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2418         }
2419         return c;
2420 }
2421
2422 int usercount_invisible(void)
2423 {
2424         int c = 0;
2425
2426         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2427         {
2428                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2429         }
2430         return c;
2431 }
2432
2433 int usercount_opers(void)
2434 {
2435         int c = 0;
2436
2437         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2438         {
2439                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2440         }
2441         return c;
2442 }
2443
2444 int usercount_unknown(void)
2445 {
2446         int c = 0;
2447
2448         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2449         {
2450                 if ((i->second->fd) && (i->second->registered != 7))
2451                         c++;
2452         }
2453         return c;
2454 }
2455
2456 long chancount(void)
2457 {
2458         return chanlist.size();
2459 }
2460
2461 long count_servs(void)
2462 {
2463         int c = 0;
2464         for (int i = 0; i < 32; i++)
2465         {
2466                 if (me[i] != NULL)
2467                 {
2468                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2469                         {
2470                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2471                                 {
2472                                         c++;
2473                                 }
2474                         }
2475                 }
2476         }
2477         return c;
2478 }
2479
2480 long servercount(void)
2481 {
2482         return count_servs()+1;
2483 }
2484
2485 long local_count()
2486 {
2487         int c = 0;
2488         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2489         {
2490                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2491         }
2492         return c;
2493 }
2494
2495
2496 void ShowMOTD(userrec *user)
2497 {
2498         std::string WholeMOTD = "";
2499         if (!MOTD.size())
2500         {
2501                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2502                 return;
2503         }
2504         WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
2505         for (int i = 0; i != MOTD.size(); i++)
2506         {
2507                 WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
2508         }
2509         WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
2510         // only one write operation
2511         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2512
2513 }
2514
2515 void ShowRULES(userrec *user)
2516 {
2517         if (!RULES.size())
2518         {
2519                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2520                 return;
2521         }
2522         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2523         for (int i = 0; i != RULES.size(); i++)
2524         {
2525                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2526         }
2527         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2528 }
2529
2530 /* shows the message of the day, and any other on-logon stuff */
2531 void FullConnectUser(userrec* user)
2532 {
2533         user->registered = 7;
2534         user->idle_lastmsg = TIME;
2535         log(DEBUG,"ConnectUser: %s",user->nick);
2536
2537         if (strcmp(Passwd(user),"") && (!user->haspassed))
2538         {
2539                 kill_link(user,"Invalid password");
2540                 return;
2541         }
2542         if (IsDenied(user))
2543         {
2544                 kill_link(user,"Unauthorised connection");
2545                 return;
2546         }
2547
2548         char match_against[MAXBUF];
2549         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2550         char* e = matches_exception(match_against);
2551         if (!e)
2552         {
2553                 char* r = matches_gline(match_against);
2554                 if (r)
2555                 {
2556                         char reason[MAXBUF];
2557                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2558                         kill_link_silent(user,reason);
2559                         return;
2560                 }
2561                 r = matches_kline(user->host);
2562                 if (r)
2563                 {
2564                         char reason[MAXBUF];
2565                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2566                         kill_link_silent(user,reason);
2567                         return;
2568                 }
2569         }
2570
2571         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2572         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2573         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2574         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2575         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2576         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2577         std::stringstream v;
2578         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2579         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2580         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2581         v << std::string(Network);
2582         std::string data005 = v.str();
2583         FOREACH_MOD On005Numeric(data005);
2584         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2585         // so i'd better split it :)
2586         std::stringstream out(data005);
2587         std::string token = "";
2588         std::string line5 = "";
2589         int token_counter = 0;
2590         while (!out.eof())
2591         {
2592                 out >> token;
2593                 line5 = line5 + token + " ";
2594                 token_counter++;
2595                 if ((token_counter >= 13) || (out.eof() == true))
2596                 {
2597                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2598                         line5 = "";
2599                         token_counter = 0;
2600                 }
2601         }
2602         ShowMOTD(user);
2603         FOREACH_MOD OnUserConnect(user);
2604         WriteOpers("*** Client connecting on port %d: %s!%s@%s [%s]",user->port,user->nick,user->ident,user->host,user->ip);
2605
2606         char buffer[MAXBUF];
2607         snprintf(buffer,MAXBUF,"N %d %s %s %s %s +%s %s %s :%s",user->age,user->nick,user->host,user->dhost,user->ident,user->modes,user->ip,ServerName,user->fullname);
2608         NetSendToAll(buffer);
2609 }
2610
2611
2612 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2613 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2614 // registration timeout maximum seconds)
2615 bool AllModulesReportReady(userrec* user)
2616 {
2617         for (int i = 0; i <= MODCOUNT; i++)
2618         {
2619                 int res = modules[i]->OnCheckReady(user);
2620                         if (!res)
2621                                 return false;
2622         }
2623         return true;
2624 }
2625
2626 /* shows the message of the day, and any other on-logon stuff */
2627 void ConnectUser(userrec *user)
2628 {
2629         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2630         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2631         {
2632                 FullConnectUser(user);
2633         }
2634 }
2635
2636 void handle_version(char **parameters, int pcnt, userrec *user)
2637 {
2638         char Revision[] = "$Revision$";
2639
2640         char *s1 = Revision;
2641         char *savept;
2642         char *v1 = strtok_r(s1," ",&savept);
2643         s1 = savept;
2644         char *v2 = strtok_r(s1," ",&savept);
2645         s1 = savept;
2646
2647         WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%d)",user->nick,VERSION,v2,ServerName,SYSTEM,OPTIMISATION);
2648 }
2649
2650
2651 // calls a handler function for a command
2652
2653 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2654 {
2655                 for (int i = 0; i < cmdlist.size(); i++)
2656                 {
2657                         if (!strcasecmp(cmdlist[i].command,commandname))
2658                         {
2659                                 if (cmdlist[i].handler_function)
2660                                 {
2661                                         if (pcnt>=cmdlist[i].min_params)
2662                                         {
2663                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2664                                                 {
2665                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2666                                                 }
2667                                         }
2668                                 }
2669                         }
2670                 }
2671 }
2672
2673 void DoSplitEveryone()
2674 {
2675         bool go_again = true;
2676         while (go_again)
2677         {
2678                 go_again = false;
2679                 for (int i = 0; i < 32; i++)
2680                 {
2681                         if (me[i] != NULL)
2682                         {
2683                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2684                                 {
2685                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2686                                         {
2687                                                 j->routes.clear();
2688                                                 j->CloseConnection();
2689                                                 me[i]->connectors.erase(j);
2690                                                 go_again = true;
2691                                                 break;
2692                                         }
2693                                 }
2694                         }
2695                 }
2696         }
2697         log(DEBUG,"Removed server. Will remove clients...");
2698         // iterate through the userlist and remove all users on this server.
2699         // because we're dealing with a mesh, we dont have to deal with anything
2700         // "down-route" from this server (nice huh)
2701         go_again = true;
2702         char reason[MAXBUF];
2703         while (go_again)
2704         {
2705                 go_again = false;
2706                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2707                 {
2708                         if (strcasecmp(u->second->server,ServerName))
2709                         {
2710                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
2711                                 kill_link(u->second,reason);
2712                                 go_again = true;
2713                                 break;
2714                         }
2715                 }
2716         }
2717 }
2718
2719
2720
2721 char islast(const char* s)
2722 {
2723         char c = '`';
2724         for (int j = 0; j < 32; j++)
2725         {
2726                 if (me[j] != NULL)
2727                 {
2728                         for (int k = 0; k < me[j]->connectors.size(); k++)
2729                         {
2730                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2731                                 {
2732                                         c = '|';
2733                                 }
2734                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2735                                 {
2736                                         c = '`';
2737                                 }
2738                         }
2739                 }
2740         }
2741         return c;
2742 }
2743
2744 long map_count(const char* s)
2745 {
2746         int c = 0;
2747         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2748         {
2749                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
2750         }
2751         return c;
2752 }
2753
2754
2755 void force_nickchange(userrec* user,const char* newnick)
2756 {
2757         char nick[MAXBUF];
2758         int MOD_RESULT = 0;
2759
2760         strcpy(nick,"");
2761
2762         FOREACH_RESULT(OnUserPreNick(user,newnick));
2763         if (MOD_RESULT) {
2764                 kill_link(user,"Nickname collision");
2765                 return;
2766         }
2767         if (matches_qline(newnick))
2768         {
2769                 kill_link(user,"Nickname collision");
2770                 return;
2771         }
2772
2773         if (user)
2774         {
2775                 if (newnick)
2776                 {
2777                         strncpy(nick,newnick,MAXBUF);
2778                 }
2779                 if (user->registered == 7)
2780                 {
2781                         char* pars[1];
2782                         pars[0] = nick;
2783                         handle_nick(pars,1,user);
2784                 }
2785         }
2786 }
2787
2788
2789 int process_parameters(char **command_p,char *parameters)
2790 {
2791         int i = 0;
2792         int j = 0;
2793         int q = 0;
2794         q = strlen(parameters);
2795         if (!q)
2796         {
2797                 /* no parameters, command_p invalid! */
2798                 return 0;
2799         }
2800         if (parameters[0] == ':')
2801         {
2802                 command_p[0] = parameters+1;
2803                 return 1;
2804         }
2805         if (q)
2806         {
2807                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
2808                 {
2809                         /* only one parameter */
2810                         command_p[0] = parameters;
2811                         if (parameters[0] == ':')
2812                         {
2813                                 if (strchr(parameters,' ') != NULL)
2814                                 {
2815                                         command_p[0]++;
2816                                 }
2817                         }
2818                         return 1;
2819                 }
2820         }
2821         command_p[j++] = parameters;
2822         for (int i = 0; i <= q; i++)
2823         {
2824                 if (parameters[i] == ' ')
2825                 {
2826                         command_p[j++] = parameters+i+1;
2827                         parameters[i] = '\0';
2828                         if (command_p[j-1][0] == ':')
2829                         {
2830                                 *command_p[j-1]++; /* remove dodgy ":" */
2831                                 break;
2832                                 /* parameter like this marks end of the sequence */
2833                         }
2834                 }
2835         }
2836         return j; /* returns total number of items in the list */
2837 }
2838
2839 void process_command(userrec *user, char* cmd)
2840 {
2841         char *parameters;
2842         char *command;
2843         char *command_p[127];
2844         char p[MAXBUF], temp[MAXBUF];
2845         int i, j, items, cmd_found;
2846
2847         for (int i = 0; i < 127; i++)
2848                 command_p[i] = NULL;
2849
2850         if (!user)
2851         {
2852                 return;
2853         }
2854         if (!cmd)
2855         {
2856                 return;
2857         }
2858         if (!strcmp(cmd,""))
2859         {
2860                 return;
2861         }
2862
2863         int total_params = 0;
2864         if (strlen(cmd)>2)
2865         {
2866                 for (int q = 0; q < strlen(cmd)-1; q++)
2867                 {
2868                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
2869                         {
2870                                 total_params++;
2871                                 // found a 'trailing', we dont count them after this.
2872                                 break;
2873                         }
2874                         if (cmd[q] == ' ')
2875                                 total_params++;
2876                 }
2877         }
2878
2879         // another phidjit bug...
2880         if (total_params > 126)
2881         {
2882                 *(strchr(cmd,' ')) = '\0';
2883                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
2884                 return;
2885         }
2886
2887         strlcpy(temp,cmd,MAXBUF);
2888
2889         std::string tmp = cmd;
2890         for (int i = 0; i <= MODCOUNT; i++)
2891         {
2892                 std::string oldtmp = tmp;
2893                 modules[i]->OnServerRaw(tmp,true,user);
2894                 if (oldtmp != tmp)
2895                 {
2896                         log(DEBUG,"A Module changed the input string!");
2897                         log(DEBUG,"New string: %s",tmp.c_str());
2898                         log(DEBUG,"Old string: %s",oldtmp.c_str());
2899                         break;
2900                 }
2901         }
2902         strlcpy(cmd,tmp.c_str(),MAXBUF);
2903         strlcpy(temp,cmd,MAXBUF);
2904
2905         if (!strchr(cmd,' '))
2906         {
2907                 /* no parameters, lets skip the formalities and not chop up
2908                  * the string */
2909                 log(DEBUG,"About to preprocess command with no params");
2910                 items = 0;
2911                 command_p[0] = NULL;
2912                 parameters = NULL;
2913                 for (int i = 0; i <= strlen(cmd); i++)
2914                 {
2915                         cmd[i] = toupper(cmd[i]);
2916                 }
2917                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
2918                 command = cmd;
2919         }
2920         else
2921         {
2922                 strcpy(cmd,"");
2923                 j = 0;
2924                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
2925                 for (int i = 0; i < strlen(temp); i++)
2926                 {
2927                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
2928                         {
2929                                 cmd[j++] = temp[i];
2930                                 cmd[j] = 0;
2931                         }
2932                 }
2933                 /* split the full string into a command plus parameters */
2934                 parameters = p;
2935                 strcpy(p," ");
2936                 command = cmd;
2937                 if (strchr(cmd,' '))
2938                 {
2939                         for (int i = 0; i <= strlen(cmd); i++)
2940                         {
2941                                 /* capitalise the command ONLY, leave params intact */
2942                                 cmd[i] = toupper(cmd[i]);
2943                                 /* are we nearly there yet?! :P */
2944                                 if (cmd[i] == ' ')
2945                                 {
2946                                         command = cmd;
2947                                         parameters = cmd+i+1;
2948                                         cmd[i] = '\0';
2949                                         break;
2950                                 }
2951                         }
2952                 }
2953                 else
2954                 {
2955                         for (int i = 0; i <= strlen(cmd); i++)
2956                         {
2957                                 cmd[i] = toupper(cmd[i]);
2958                         }
2959                 }
2960
2961         }
2962         cmd_found = 0;
2963
2964         if (strlen(command)>MAXCOMMAND)
2965         {
2966                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
2967                 return;
2968         }
2969
2970         for (int x = 0; x < strlen(command); x++)
2971         {
2972                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
2973                 {
2974                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
2975                         {
2976                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
2977                                 {
2978                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
2979                                         return;
2980                                 }
2981                         }
2982                 }
2983         }
2984
2985         for (int i = 0; i != cmdlist.size(); i++)
2986         {
2987                 if (strcmp(cmdlist[i].command,""))
2988                 {
2989                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
2990                         {
2991                                 log(DEBUG,"Found matching command");
2992
2993                                 if (parameters)
2994                                 {
2995                                         if (strcmp(parameters,""))
2996                                         {
2997                                                 items = process_parameters(command_p,parameters);
2998                                         }
2999                                         else
3000                                         {
3001                                                 items = 0;
3002                                                 command_p[0] = NULL;
3003                                         }
3004                                 }
3005                                 else
3006                                 {
3007                                         items = 0;
3008                                         command_p[0] = NULL;
3009                                 }
3010
3011                                 if (user)
3012                                 {
3013                                         log(DEBUG,"Processing command");
3014
3015                                         /* activity resets the ping pending timer */
3016                                         user->nping = TIME + user->pingmax;
3017                                         if ((items) < cmdlist[i].min_params)
3018                                         {
3019                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3020                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3021                                                 return;
3022                                         }
3023                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3024                                         {
3025                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3026                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3027                                                 cmd_found = 1;
3028                                                 return;
3029                                         }
3030                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3031                                         {
3032                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3033                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3034                                                 cmd_found = 1;
3035                                                 return;
3036                                         }
3037                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3038                                          * deny command! */
3039                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3040                                         {
3041                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3042                                                 {
3043                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3044                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3045                                                         return;
3046                                                 }
3047                                         }
3048                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3049                                         {
3050                                                 char* mycmd;
3051                                                 char* savept2;
3052                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3053                                                 while (mycmd)
3054                                                 {
3055                                                         if (!strcasecmp(mycmd,command))
3056                                                         {
3057                                                                 // command is disabled!
3058                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3059                                                                 return;
3060                                                         }
3061                                                         mycmd = strtok_r(NULL," ",&savept2);
3062                                                 }
3063
3064
3065                                         }
3066                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
3067                                         {
3068                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
3069                                                 if (cmdlist[i].handler_function)
3070                                                 {
3071
3072                                                         /* ikky /stats counters */
3073                                                         if (temp)
3074                                                         {
3075                                                                 if (user)
3076                                                                 {
3077                                                                         user->bytes_in += strlen(temp);
3078                                                                         user->cmds_in++;
3079                                                                         user->bytes_out+=strlen(temp);
3080                                                                         user->cmds_out++;
3081                                                                 }
3082                                                                 cmdlist[i].use_count++;
3083                                                                 cmdlist[i].total_bytes+=strlen(temp);
3084                                                         }
3085
3086                                                         int MOD_RESULT = 0;
3087                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3088                                                         if (MOD_RESULT == 1) {
3089                                                                 return;
3090                                                         }
3091
3092                                                         /* WARNING: nothing may come after the
3093                                                          * command handler call, as the handler
3094                                                          * may free the user structure! */
3095
3096                                                         cmdlist[i].handler_function(command_p,items,user);
3097                                                 }
3098                                                 return;
3099                                         }
3100                                         else
3101                                         {
3102                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3103                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3104                                                 return;
3105                                         }
3106                                 }
3107                                 cmd_found = 1;
3108                         }
3109                 }
3110         }
3111         if ((!cmd_found) && (user))
3112         {
3113                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
3114                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3115         }
3116 }
3117
3118
3119 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3120 {
3121         command_t comm;
3122         /* create the command and push it onto the table */
3123         strlcpy(comm.command,cmd,MAXBUF);
3124         strlcpy(comm.source,source,MAXBUF);
3125         comm.handler_function = f;
3126         comm.flags_needed = flags;
3127         comm.min_params = minparams;
3128         comm.use_count = 0;
3129         comm.total_bytes = 0;
3130         cmdlist.push_back(comm);
3131         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
3132 }
3133
3134 bool removecommands(const char* source)
3135 {
3136         bool go_again = true;
3137         while (go_again)
3138         {
3139                 go_again = false;
3140                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3141                 {
3142                         if (!strcmp(i->source,source))
3143                         {
3144                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3145                                 cmdlist.erase(i);
3146                                 go_again = true;
3147                                 break;
3148                         }
3149                 }
3150         }
3151         return true;
3152 }
3153
3154 void SetupCommandTable(void)
3155 {
3156         createcommand("USER",handle_user,0,4,"<core>");
3157         createcommand("NICK",handle_nick,0,1,"<core>");
3158         createcommand("QUIT",handle_quit,0,0,"<core>");
3159         createcommand("VERSION",handle_version,0,0,"<core>");
3160         createcommand("PING",handle_ping,0,1,"<core>");
3161         createcommand("PONG",handle_pong,0,1,"<core>");
3162         createcommand("ADMIN",handle_admin,0,0,"<core>");
3163         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3164         createcommand("INFO",handle_info,0,0,"<core>");
3165         createcommand("TIME",handle_time,0,0,"<core>");
3166         createcommand("WHOIS",handle_whois,0,1,"<core>");
3167         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3168         createcommand("NOTICE",handle_notice,0,2,"<core>");
3169         createcommand("JOIN",handle_join,0,1,"<core>");
3170         createcommand("NAMES",handle_names,0,0,"<core>");
3171         createcommand("PART",handle_part,0,1,"<core>");
3172         createcommand("KICK",handle_kick,0,2,"<core>");
3173         createcommand("MODE",handle_mode,0,1,"<core>");
3174         createcommand("TOPIC",handle_topic,0,1,"<core>");
3175         createcommand("WHO",handle_who,0,1,"<core>");
3176         createcommand("MOTD",handle_motd,0,0,"<core>");
3177         createcommand("RULES",handle_rules,0,0,"<core>");
3178         createcommand("OPER",handle_oper,0,2,"<core>");
3179         createcommand("LIST",handle_list,0,0,"<core>");
3180         createcommand("DIE",handle_die,'o',1,"<core>");
3181         createcommand("RESTART",handle_restart,'o',1,"<core>");
3182         createcommand("KILL",handle_kill,'o',2,"<core>");
3183         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3184         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3185         createcommand("STATS",handle_stats,0,1,"<core>");
3186         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3187         createcommand("AWAY",handle_away,0,0,"<core>");
3188         createcommand("ISON",handle_ison,0,0,"<core>");
3189         createcommand("SUMMON",handle_summon,0,0,"<core>");
3190         createcommand("USERS",handle_users,0,0,"<core>");
3191         createcommand("INVITE",handle_invite,0,2,"<core>");
3192         createcommand("PASS",handle_pass,0,1,"<core>");
3193         createcommand("TRACE",handle_trace,'o',0,"<core>");
3194         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3195         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3196         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3197         createcommand("MODULES",handle_modules,0,0,"<core>");
3198         createcommand("LINKS",handle_links,0,0,"<core>");
3199         createcommand("MAP",handle_map,0,0,"<core>");
3200         createcommand("KLINE",handle_kline,'o',1,"<core>");
3201         createcommand("GLINE",handle_gline,'o',1,"<core>");
3202         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3203         createcommand("QLINE",handle_qline,'o',1,"<core>");
3204         createcommand("ELINE",handle_eline,'o',1,"<core>");
3205         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3206         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3207         createcommand("SERVER",handle_server,0,0,"<core>");
3208 }
3209
3210 void process_buffer(const char* cmdbuf,userrec *user)
3211 {
3212         if (!user)
3213         {
3214                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3215                 return;
3216         }
3217         char cmd[MAXBUF];
3218         int i;
3219         if (!cmdbuf)
3220         {
3221                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3222                 return;
3223         }
3224         if (!strcmp(cmdbuf,""))
3225         {
3226                 return;
3227         }
3228         while ((cmdbuf[0] == ' ') && (strlen(cmdbuf)>0)) cmdbuf++; // strip leading spaces
3229
3230         strlcpy(cmd,cmdbuf,MAXBUF);
3231         if (!strcmp(cmd,""))
3232         {
3233                 return;
3234         }
3235         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3236         {
3237                 cmd[strlen(cmd)-1] = '\0';
3238         }
3239         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3240         {
3241                 cmd[strlen(cmd)-1] = '\0';
3242         }
3243
3244         while ((cmd[strlen(cmd)-1] == ' ') && (strlen(cmd)>0)) // strip trailing spaces
3245         {
3246                 cmd[strlen(cmd)-1] = '\0';
3247         }
3248
3249         if (!strcmp(cmd,""))
3250         {
3251                 return;
3252         }
3253         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
3254         tidystring(cmd);
3255         if ((user) && (cmd))
3256         {
3257                 process_command(user,cmd);
3258         }
3259 }
3260
3261 void DoSync(serverrec* serv, char* tcp_host)
3262 {
3263         char data[MAXBUF];
3264         log(DEBUG,"Sending sync");
3265         // send start of sync marker: Y <timestamp>
3266         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3267         // except the ones its receiving it from.
3268         snprintf(data,MAXBUF,"Y %d",TIME);
3269         serv->SendPacket(data,tcp_host);
3270         // send users and channels
3271         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3272         {
3273                 snprintf(data,MAXBUF,"N %d %s %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->ip,u->second->server,u->second->fullname);
3274                 serv->SendPacket(data,tcp_host);
3275                 if (strchr(u->second->modes,'o'))
3276                 {
3277                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3278                         serv->SendPacket(data,tcp_host);
3279                 }
3280                 for (int i = 0; i <= MODCOUNT; i++)
3281                 {
3282                         string_list l = modules[i]->OnUserSync(u->second);
3283                         for (int j = 0; j < l.size(); j++)
3284                         {
3285                                 strlcpy(data,l[j].c_str(),MAXBUF);
3286                                 serv->SendPacket(data,tcp_host);
3287                         }
3288                 }
3289                 if (strcmp(chlist(u->second),""))
3290                 {
3291                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
3292                         serv->SendPacket(data,tcp_host);
3293                 }
3294         }
3295         // send channel modes, topics etc...
3296         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3297         {
3298                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3299                 serv->SendPacket(data,tcp_host);
3300                 for (int i = 0; i <= MODCOUNT; i++)
3301                 {
3302                         string_list l = modules[i]->OnChannelSync(c->second);
3303                         for (int j = 0; j < l.size(); j++)
3304                         {
3305                                 strlcpy(data,l[j].c_str(),MAXBUF);
3306                                 serv->SendPacket(data,tcp_host);
3307                         }
3308                 }
3309                 if (strcmp(c->second->topic,""))
3310                 {
3311                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3312                         serv->SendPacket(data,tcp_host);
3313                 }
3314                 // send current banlist
3315
3316                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3317                 {
3318                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3319                         serv->SendPacket(data,tcp_host);
3320                 }
3321         }
3322         // sync global zlines, glines, etc
3323         sync_xlines(serv,tcp_host);
3324
3325         for (int j = 0; j < 32; j++)
3326         {
3327                 if (me[j] != NULL)
3328                 {
3329                         for (int k = 0; k < me[j]->connectors.size(); k++)
3330                         {
3331                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3332                                 {
3333                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3334                                         serv->SendPacket(data,tcp_host);
3335                                         NetSendMyRoutingTable();
3336                                 }
3337                         }
3338                 }
3339         }
3340
3341         snprintf(data,MAXBUF,"F %d",TIME);
3342         serv->SendPacket(data,tcp_host);
3343         log(DEBUG,"Sent sync");
3344         // ircd sends its serverlist after the end of sync here
3345 }
3346
3347
3348 void NetSendMyRoutingTable()
3349 {
3350         // send out a line saying what is reachable to us.
3351         // E.g. if A is linked to B C and D, send out:
3352         // $ A B C D
3353         // if its only linked to B and D send out:
3354         // $ A B D
3355         // if it has no links, dont even send out the line at all.
3356         char buffer[MAXBUF];
3357         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3358         bool sendit = false;
3359         for (int i = 0; i < 32; i++)
3360         {
3361                 if (me[i] != NULL)
3362                 {
3363                         for (int j = 0; j < me[i]->connectors.size(); j++)
3364                         {
3365                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3366                                 {
3367                                         strlcat(buffer," ",MAXBUF);
3368                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3369                                         sendit = true;
3370                                 }
3371                         }
3372                 }
3373         }
3374         if (sendit)
3375                 NetSendToAll(buffer);
3376 }
3377
3378
3379 void DoSplit(const char* params)
3380 {
3381         bool go_again = true;
3382         while (go_again)
3383         {
3384                 go_again = false;
3385                 for (int i = 0; i < 32; i++)
3386                 {
3387                         if (me[i] != NULL)
3388                         {
3389                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3390                                 {
3391                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3392                                         {
3393                                                 j->routes.clear();
3394                                                 j->CloseConnection();
3395                                                 me[i]->connectors.erase(j);
3396                                                 go_again = true;
3397                                                 break;
3398                                         }
3399                                 }
3400                         }
3401                 }
3402         }
3403         log(DEBUG,"Removed server. Will remove clients...");
3404         // iterate through the userlist and remove all users on this server.
3405         // because we're dealing with a mesh, we dont have to deal with anything
3406         // "down-route" from this server (nice huh)
3407         go_again = true;
3408         char reason[MAXBUF];
3409         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3410         while (go_again)
3411         {
3412                 go_again = false;
3413                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3414                 {
3415                         if (!strcasecmp(u->second->server,params))
3416                         {
3417                                 kill_link(u->second,reason);
3418                                 go_again = true;
3419                                 break;
3420                         }
3421                 }
3422         }
3423 }
3424
3425 // removes a server. Will NOT remove its users!
3426
3427 void RemoveServer(const char* name)
3428 {
3429         bool go_again = true;
3430         while (go_again)
3431         {
3432                 go_again = false;
3433                 for (int i = 0; i < 32; i++)
3434                 {
3435                         if (me[i] != NULL)
3436                         {
3437                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3438                                 {
3439                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3440                                         {
3441                                                 j->routes.clear();
3442                                                 j->CloseConnection();
3443                                                 me[i]->connectors.erase(j);
3444                                                 go_again = true;
3445                                                 break;
3446                                         }
3447                                 }
3448                         }
3449                 }
3450         }
3451 }
3452
3453
3454 char MODERR[MAXBUF];
3455
3456 char* ModuleError()
3457 {
3458         return MODERR;
3459 }
3460
3461 void erase_factory(int j)
3462 {
3463         int v = 0;
3464         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3465         {
3466                 if (v == j)
3467                 {
3468                         factory.erase(t);
3469                         factory.push_back(NULL);
3470                         return;
3471                 }
3472                 v++;
3473         }
3474 }
3475
3476 void erase_module(int j)
3477 {
3478         int v = 0;
3479         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3480         {
3481                 if (v == j)
3482                 {
3483                         delete *m;
3484                         modules.erase(m);
3485                         modules.push_back(NULL);
3486                         break;
3487                 }
3488                 v++;
3489         }
3490         int v2 = 0;
3491         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3492         {
3493                 if (v2 == j)
3494                 {
3495                        module_names.erase(v);
3496                        break;
3497                 }
3498                 v2++;
3499         }
3500
3501 }
3502
3503 bool UnloadModule(const char* filename)
3504 {
3505         for (int j = 0; j != module_names.size(); j++)
3506         {
3507                 if (module_names[j] == std::string(filename))
3508                 {
3509                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3510                         {
3511                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3512                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3513                                 return false;
3514                         }
3515                         // found the module
3516                         log(DEBUG,"Deleting module...");
3517                         erase_module(j);
3518                         log(DEBUG,"Erasing module entry...");
3519                         erase_factory(j);
3520                         log(DEBUG,"Removing dependent commands...");
3521                         removecommands(filename);
3522                         log(DEFAULT,"Module %s unloaded",filename);
3523                         MODCOUNT--;
3524                         return true;
3525                 }
3526         }
3527         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3528         snprintf(MODERR,MAXBUF,"Module not loaded");
3529         return false;
3530 }
3531
3532 bool DirValid(char* dirandfile)
3533 {
3534         char work[MAXBUF];
3535         strlcpy(work,dirandfile,MAXBUF);
3536         int p = strlen(work);
3537         // we just want the dir
3538         while (strlen(work))
3539         {
3540                 if (work[p] == '/')
3541                 {
3542                         work[p] = '\0';
3543                         break;
3544                 }
3545                 work[p--] = '\0';
3546         }
3547         log(DEBUG,"Dir valid: %s",work);
3548         char buffer[MAXBUF], otherdir[MAXBUF];
3549         // Get the current working directory
3550         if( getcwd( buffer, MAXBUF ) == NULL )
3551                 return false;
3552         chdir(work);
3553         if( getcwd( otherdir, MAXBUF ) == NULL )
3554                 return false;
3555         chdir(buffer);
3556         log(DEBUG,"Dir is really: %s",otherdir);
3557         if (strlen(otherdir) >= strlen(work))
3558         {
3559                 otherdir[strlen(work)] = '\0';
3560                 log(DEBUG,"Compare: '%s' -> '%s'",otherdir,work);
3561                 if (!strcmp(otherdir,work))
3562                 {
3563                         log(DEBUG,"Match ok");
3564                         return true;
3565                 }
3566                 log(DEBUG,"No match");
3567                 return false;
3568         }
3569         else return false;
3570 }
3571
3572 bool LoadModule(const char* filename)
3573 {
3574         char modfile[MAXBUF];
3575         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3576         if (!DirValid(modfile))
3577         {
3578                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3579                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3580                 return false;
3581         }
3582         log(DEBUG,"Loading module: %s",modfile);
3583         if (FileExists(modfile))
3584         {
3585                 for (int j = 0; j < module_names.size(); j++)
3586                 {
3587                         if (module_names[j] == std::string(filename))
3588                         {
3589                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3590                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3591                                 return false;
3592                         }
3593                 }
3594                 ircd_module* a = new ircd_module(modfile);
3595                 factory[MODCOUNT+1] = a;
3596                 if (factory[MODCOUNT+1]->LastError())
3597                 {
3598                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3599                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3600                         MODCOUNT--;
3601                         return false;
3602                 }
3603                 if (factory[MODCOUNT+1]->factory)
3604                 {
3605                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3606                         modules[MODCOUNT+1] = m;
3607                         /* save the module and the module's classfactory, if
3608                          * this isnt done, random crashes can occur :/ */
3609                         module_names.push_back(filename);
3610                 }
3611                 else
3612                 {
3613                         log(DEFAULT,"Unable to load %s",modfile);
3614                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3615                         return false;
3616                 }
3617         }
3618         else
3619         {
3620                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3621                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3622                 return false;
3623         }
3624         MODCOUNT++;
3625         return true;
3626 }
3627
3628 int InspIRCd(void)
3629 {
3630         struct sockaddr_in client,server;
3631         char addrs[MAXBUF][255];
3632         int incomingSockfd, result = TRUE;
3633         socklen_t length;
3634         int count = 0;
3635         int selectResult = 0, selectResult2 = 0;
3636         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3637         char resolvedHost[MAXBUF];
3638         fd_set selectFds;
3639         timeval tv;
3640
3641         log_file = fopen("ircd.log","a+");
3642         if (!log_file)
3643         {
3644                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
3645                 Exit(ERROR);
3646         }
3647
3648         log(DEBUG,"InspIRCd: startup: begin");
3649         log(DEBUG,"$Id$");
3650         if (geteuid() == 0)
3651         {
3652                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3653                 Exit(ERROR);
3654                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3655         }
3656         SetupCommandTable();
3657         log(DEBUG,"InspIRCd: startup: default command table set up");
3658
3659         ReadConfig(true,NULL);
3660         if (strcmp(DieValue,""))
3661         {
3662                 printf("WARNING: %s\n\n",DieValue);
3663                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3664                 exit(0);
3665         }
3666         log(DEBUG,"InspIRCd: startup: read config");
3667
3668         int count2 = 0, count3 = 0;
3669
3670         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
3671         {
3672                 ConfValue("bind","port",count,configToken,&config_f);
3673                 ConfValue("bind","address",count,Addr,&config_f);
3674                 ConfValue("bind","type",count,Type,&config_f);
3675                 if (!strcmp(Type,"servers"))
3676                 {
3677                         char Default[MAXBUF];
3678                         strcpy(Default,"no");
3679                         ConfValue("bind","default",count,Default,&config_f);
3680                         if (strchr(Default,'y'))
3681                         {
3682                                 defaultRoute = count3;
3683                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
3684                         }
3685                         me[count3] = new serverrec(ServerName,100L,false);
3686                         if (!me[count3]->CreateListener(Addr,atoi(configToken)))
3687                         {
3688                                 log(DEFAULT,"Warning: Failed to bind port %d",atoi(configToken));
3689                                 printf("Warning: Failed to bind port %d\n",atoi(configToken));
3690                         }
3691                         else
3692                         {
3693                                 count3++;
3694                         }
3695                 }
3696                 else
3697                 {
3698                         ports[count2] = atoi(configToken);
3699                         strlcpy(addrs[count2],Addr,256);
3700                         count2++;
3701                 }
3702                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
3703         }
3704         portCount = count2;
3705         UDPportCount = count3;
3706
3707         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
3708         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
3709
3710         printf("\n");
3711
3712         /* BugFix By Craig! :p */
3713         MODCOUNT = -1;
3714         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
3715         {
3716                 ConfValue("module","name",count2,configToken,&config_f);
3717                 printf("Loading module... \033[1;37m%s\033[0;37m\n",configToken);
3718                 if (!LoadModule(configToken))
3719                 {
3720                         log(DEBUG,"Exiting due to a module loader error.");
3721                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
3722                         Exit(0);
3723                 }
3724         }
3725         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
3726
3727         startup_time = time(NULL);
3728
3729         char PID[MAXBUF];
3730         ConfValue("pid","file",0,PID,&config_f);
3731         // write once here, to try it out and make sure its ok
3732         WritePID(PID);
3733
3734         /* setup select call */
3735         FD_ZERO(&selectFds);
3736         log(DEBUG,"InspIRCd: startup: zero selects");
3737         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
3738
3739         for (count = 0; count < portCount; count++)
3740         {
3741                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
3742                 {
3743                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
3744                         return(ERROR);
3745                 }
3746                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
3747                 {
3748                         log(DEFAULT,"InspIRCd: startup: failed to bind port %d",ports[count]);
3749                 }
3750                 else    /* well we at least bound to one socket so we'll continue */
3751                 {
3752                         boundPortCount++;
3753                 }
3754         }
3755
3756         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
3757
3758         /* if we didn't bind to anything then abort */
3759         if (boundPortCount == 0)
3760         {
3761                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
3762                 printf("\nERROR: Was not able to bind any of %d ports! Please check your configuration.\n\n", portCount);
3763                 return (ERROR);
3764         }
3765
3766
3767         printf("\nInspIRCd is now running!\n");
3768
3769         if (nofork)
3770         {
3771                 log(VERBOSE,"Not forking as -nofork was specified");
3772         }
3773         else
3774         {
3775                 if (DaemonSeed() == ERROR)
3776                 {
3777                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
3778                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
3779                         Exit(ERROR);
3780                 }
3781         }
3782
3783         WritePID(PID);
3784
3785         length = sizeof (client);
3786         char udp_msg[MAXBUF], tcp_host[MAXBUF];
3787
3788         fd_set serverfds;
3789         timeval tvs;
3790         tvs.tv_usec = 7000L;
3791         tvs.tv_sec = 0;
3792         tv.tv_sec = 0;
3793         tv.tv_usec = 7000L;
3794         char data[10240];
3795         timeval tval;
3796         fd_set sfd;
3797         tval.tv_usec = 7000L;
3798         tval.tv_sec = 0;
3799         int total_in_this_set = 0;
3800         int v = 0;
3801         bool expire_run = false;
3802
3803         /* main loop, this never returns */
3804         for (;;)
3805         {
3806 #ifdef _POSIX_PRIORITY_SCHEDULING
3807                 sched_yield();
3808 #endif
3809                 // poll dns queue
3810                 dns_poll();
3811                 FD_ZERO(&sfd);
3812
3813                 // we only read time() once per iteration rather than tons of times!
3814                 TIME = time(NULL);
3815
3816                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
3817                 // them in a list, then reap the list every second or so.
3818                 if (((TIME % 5) == 0) && (!expire_run))
3819                 {
3820                         expire_lines();
3821                         FOREACH_MOD OnBackgroundTimer(TIME);
3822                         expire_run = true;
3823                         continue;
3824                 }
3825                 if ((TIME % 5) == 1)
3826                         expire_run = false;
3827
3828                 // fix by brain - this must be below any manipulation of the hashmap by modules
3829                 user_hash::iterator count2 = clientlist.begin();
3830
3831                 FD_ZERO(&serverfds);
3832
3833                 for (int x = 0; x != UDPportCount; x++)
3834                 {
3835                         if (me[x])
3836                                 FD_SET(me[x]->fd, &serverfds);
3837                 }
3838
3839                 // serverFds timevals went here
3840
3841                 tvs.tv_usec = 7000L;
3842                 tvs.tv_sec = 0;
3843                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
3844                 if (servresult > 0)
3845                 {
3846                         for (int x = 0; x != UDPportCount; x++)
3847                         {
3848                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
3849                                 {
3850                                         char remotehost[MAXBUF],resolved[MAXBUF];
3851                                         length = sizeof (client);
3852                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
3853                                         if (incomingSockfd != -1)
3854                                         {
3855                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
3856                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
3857                                                 {
3858                                                         strlcpy(resolved,remotehost,MAXBUF);
3859                                                 }
3860                                                 // add to this connections ircd_connector vector
3861                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
3862                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
3863                                         }
3864                                 }
3865                         }
3866                 }
3867
3868                 for (int x = 0; x < UDPportCount; x++)
3869                 {
3870                         std::deque<std::string> msgs;
3871                         msgs.clear();
3872                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
3873                         {
3874                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
3875                                 {
3876                                         char udp_msg[MAXBUF];
3877                                         strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
3878                                         log(DEBUG,"Processing: %s",udp_msg);
3879                                         if (strlen(udp_msg)<1)
3880                                         {
3881                                                 log(DEBUG,"Invalid string from %s [route%d]",tcp_host,x);
3882                                                 break;
3883                                         }
3884                                         // during a netburst, send all data to all other linked servers
3885                                         if ((((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
3886                                         {
3887                                                 if (is_uline(tcp_host))
3888                                                 {
3889                                                         if ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
3890                                                         {
3891                                                                 NetSendToAllExcept(tcp_host,udp_msg);
3892                                                         }
3893                                                 }
3894                                                 else
3895                                                         NetSendToAllExcept(tcp_host,udp_msg);
3896                                         }
3897                                         std::string msg = udp_msg;
3898                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
3899                                         strlcpy(udp_msg,msg.c_str(),MAXBUF);
3900                                         handle_link_packet(udp_msg, tcp_host, me[x]);
3901                                 }
3902                                 goto label;
3903                         }
3904                 }
3905
3906
3907         while (count2 != clientlist.end())
3908         {
3909                 FD_ZERO(&sfd);
3910                 total_in_this_set = 0;
3911
3912                 user_hash::iterator xcount = count2;
3913                 user_hash::iterator endingiter = count2;
3914
3915                 if (count2 == clientlist.end()) break;
3916
3917                 if (count2->second)
3918                 if (count2->second->fd != 0)
3919                 {
3920                         // assemble up to 64 sockets into an fd_set
3921                         // to implement a pooling mechanism.
3922                         //
3923                         // This should be up to 64x faster than the
3924                         // old implementation.
3925                         while (total_in_this_set < 64)
3926                         {
3927                                 if (count2 != clientlist.end())
3928                                 {
3929                                         // we don't check the state of remote users.
3930                                         if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
3931                                         {
3932                                                 FD_SET (count2->second->fd, &sfd);
3933
3934                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
3935                                                 // their connection class.
3936                                                 if ((TIME > count2->second->timeout) && (count2->second->registered != 7))
3937                                                 {
3938                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
3939                                                         kill_link(count2->second,"Registration timeout");
3940                                                         goto label;
3941                                                 }
3942                                                 if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
3943                                                 {
3944                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
3945                                                         count2->second->dns_done = true;
3946                                                         FullConnectUser(count2->second);
3947                                                         goto label;
3948                                                 }
3949                                                 if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
3950                                                 {
3951                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
3952                                                         FullConnectUser(count2->second);
3953                                                         goto label;
3954                                                 }
3955                                                 if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
3956                                                 {
3957                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
3958                                                         {
3959                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
3960                                                                 kill_link(count2->second,"Ping timeout");
3961                                                                 goto label;
3962                                                         }
3963                                                         Write(count2->second->fd,"PING :%s",ServerName);
3964                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
3965                                                         count2->second->lastping = 0;
3966                                                         count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
3967                                                 }
3968                                         }
3969                                         count2++;
3970                                         total_in_this_set++;
3971                                 }
3972                                 else break;
3973                         }
3974
3975                         endingiter = count2;
3976                         count2 = xcount; // roll back to where we were
3977
3978                         v = 0;
3979
3980                         // tvals defined here
3981
3982                         tval.tv_usec = 7000L;
3983                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
3984
3985                         // now loop through all of the items in this pool if any are waiting
3986                         //if (selectResult2 > 0)
3987                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
3988                         {
3989
3990 #ifdef _POSIX_PRIORITY_SCHEDULING
3991                                 sched_yield();
3992 #endif
3993
3994                                 result = EAGAIN;
3995                                 if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
3996                                 {
3997                                         memset(data, 0, 10240);
3998                                         result = read(count2a->second->fd, data, 10240);
3999
4000                                         if (result)
4001                                         {
4002                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4003                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4004                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4005                                                 for (int checker = 0; checker < result; checker++)
4006                                                 {
4007                                                         if ((data[checker] == 0) || (data[checker] == 7))
4008                                                                 data[checker] = ' ';
4009                                                 }
4010                                                 userrec* current = count2a->second;
4011                                                 int currfd = current->fd;
4012                                                 char* l = strtok(data,"\n");
4013                                                 int floodlines = 0;
4014                                                 while (l)
4015                                                 {
4016                                                         floodlines++;
4017                                                         if ((floodlines > current->flood) && (current->flood != 0))
4018                                                         {
4019                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4020                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4021                                                                 kill_link(current,"Excess flood");
4022                                                                 goto label;
4023                                                         }
4024                                                         char sanitized[NetBufferSize];
4025                                                         memset(sanitized, 0, NetBufferSize);
4026                                                         int ptt = 0;
4027                                                         for (int pt = 0; pt < strlen(l); pt++)
4028                                                         {
4029                                                                 if (l[pt] != '\r')
4030                                                                 {
4031                                                                         sanitized[ptt++] = l[pt];
4032                                                                 }
4033                                                         }
4034                                                         sanitized[ptt] = '\0';
4035                                                         if (strlen(sanitized))
4036                                                         {
4037
4038
4039                                                                 // we're gonna re-scan to check if the nick is gone, after every
4040                                                                 // command - if it has, we're gonna bail
4041                                                                 bool find_again = false;
4042                                                                 process_buffer(sanitized,current);
4043
4044                                                                 // look for the user's record in case it's changed
4045                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
4046                                                                 {
4047                                                                         if (c2->second->fd == currfd)
4048                                                                         {
4049                                                                                 // found again, update pointer
4050                                                                                 current == c2->second;
4051                                                                                 find_again = true;
4052                                                                                 break;
4053                                                                         }
4054                                                                 }
4055                                                                 if (!find_again)
4056                                                                         goto label;
4057
4058                                                         }
4059                                                         l = strtok(NULL,"\n");
4060                                                 }
4061                                                 goto label;
4062                                         }
4063
4064                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4065                                         {
4066                                                 log(DEBUG,"killing: %s",count2a->second->nick);
4067                                                 kill_link(count2a->second,strerror(errno));
4068                                                 goto label;
4069                                         }
4070                                 }
4071                                 // result EAGAIN means nothing read
4072                                 if (result == EAGAIN)
4073                                 {
4074                                 }
4075                                 else
4076                                 if (result == 0)
4077                                 {
4078                                         if (count2->second)
4079                                         {
4080                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
4081                                                 kill_link(count2a->second,"Client exited");
4082                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4083                                                 log(DEBUG,"Bailing from client exit");
4084                                                 goto label;
4085                                         }
4086                                 }
4087                                 else if (result > 0)
4088                                 {
4089                                 }
4090                         }
4091                 }
4092                 for (int q = 0; q < total_in_this_set; q++)
4093                 {
4094                         // there is no iterator += operator :(
4095                         //if (count2 != clientlist.end())
4096                         //{
4097                                 count2++;
4098                         //}
4099                 }
4100         }
4101
4102         // set up select call
4103         for (count = 0; count < boundPortCount; count++)
4104         {
4105                 FD_SET (openSockfd[count], &selectFds);
4106         }
4107
4108         tv.tv_usec = 7000L;
4109         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4110
4111         /* select is reporting a waiting socket. Poll them all to find out which */
4112         if (selectResult > 0)
4113         {
4114                 char target[MAXBUF], resolved[MAXBUF];
4115                 for (count = 0; count < boundPortCount; count++)
4116                 {
4117                         if (FD_ISSET (openSockfd[count], &selectFds))
4118                         {
4119                                 length = sizeof (client);
4120                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4121
4122                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4123                                 strlcpy (resolved, target, MAXBUF);
4124
4125                                 if (incomingSockfd < 0)
4126                                 {
4127                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
4128                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
4129                                 }
4130                                 else
4131                                 {
4132                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4133                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
4134                                 }
4135                                 goto label;
4136                         }
4137                 }
4138         }
4139         label:
4140         if (0) {};
4141 }
4142 /* not reached */
4143 close (incomingSockfd);
4144 }
4145