src/inspircd.cpp

   1 /* ---------------------------------------------------------------------
   2  *
   3  *            +------------------------------------+
   4  *            | Inspire Internet Relay Chat Daemon |
   5  *            +------------------------------------+
   6  *
   7  *       InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   8  *                           E-mail:
   9  *                    <brain@chatspike.net>
  10  *                    <Craig@chatspike.net>
  11  *
  12  *  Written by Craig Edwards, Craig McLure, and others.
  13  *  This program is free but copyrighted software; you can redistribute
  14  *  it and/or modify it under the terms of the GNU General Public
  15  *  License as published by the Free Software Foundation, version 2
  16  *  (two) ONLY.
  17  *
  18  *  This program is distributed in the hope that it will be useful,
  19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *  GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License
  24  *  along with this program; if not, write to the Free Software
  25  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  26  *
  27  * ---------------------------------------------------------------------
  28  */
  29
  30 #include "inspircd.h"
  31 #include "configreader.h"
  32 #include <signal.h>
  33 #include <time.h>
  34 #include <string>
  35 #include <exception>
  36 #include <stdexcept>
  37 #include <new>
  38 #include <map>
  39 #include <sstream>
  40 #include <fstream>
  41 #include <vector>
  42 #include <deque>
  43 #include "modules.h"
  44 #include "mode.h"
  45 #include "xline.h"
  46 #include "socketengine.h"
  47 #include "inspircd_se_config.h"
  48 #include "socket.h"
  49 #include "typedefs.h"
  50 #include "command_parse.h"
  51
  52 using irc::sockets::NonBlocking;
  53 using irc::sockets::insp_ntoa;
  54 using irc::sockets::insp_inaddr;
  55 using irc::sockets::insp_sockaddr;
  56
  57 InspIRCd* SI = NULL;
  58
  59 void InspIRCd::AddServerName(const std::string &servername)
  60 {
  61         this->Log(DEBUG,"Adding server name: %s",servername.c_str());
  62
  63         if(find(servernames.begin(), servernames.end(), servername) == servernames.end())
  64                 servernames.push_back(servername); /* Wasn't already there. */
  65 }
  66
  67 const char* InspIRCd::FindServerNamePtr(const std::string &servername)
  68 {
  69         servernamelist::iterator iter = find(servernames.begin(), servernames.end(), servername);
  70
  71         if(iter == servernames.end())
  72         {
  73                 AddServerName(servername);
  74                 iter = --servernames.end();
  75         }
  76
  77         return iter->c_str();
  78 }
  79
  80 bool InspIRCd::FindServerName(const std::string &servername)
  81 {
  82         return (find(servernames.begin(), servernames.end(), servername) != servernames.end());
  83 }
  84
  85 void InspIRCd::Exit(int status)
  86 {
  87         exit (status);
  88 }
  89
  90 void InspIRCd::Start()
  91 {
  92         printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
  93         printf("(C) ChatSpike Development team.\033[0m\n\n");
  94         printf("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special\033[0m\n");
  95         printf("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
  96         printf("Name concept:\t\t\033[1;32mLord_Zathras\033[0m\n\n");
  97 }
  98
  99 void InspIRCd::Rehash(int status)
 100 {
 101         SI->WriteOpers("Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(CONFIG_FILE));
 102         fclose(SI->Config->log_file);
 103         SI->OpenLog(NULL,0);
 104         SI->Config->Read(false,NULL);
 105         FOREACH_MOD_I(SI,I_OnRehash,OnRehash(""));
 106 }
 107
 108 void InspIRCd::SetSignals(bool SEGVHandler)
 109 {
 110         signal (SIGALRM, SIG_IGN);
 111         signal (SIGHUP, InspIRCd::Rehash);
 112         signal (SIGPIPE, SIG_IGN);
 113         signal (SIGTERM, InspIRCd::Exit);
 114 }
 115
 116 bool InspIRCd::DaemonSeed()
 117 {
 118         int childpid;
 119         if ((childpid = fork ()) < 0)
 120                 return (ERROR);
 121         else if (childpid > 0)
 122         {
 123                 /* We wait here for the child process to kill us,
 124                  * so that the shell prompt doesnt come back over
 125                  * the output */
 126                 while (1)
 127                         sleep(600);
 128         }
 129         setsid ();
 130         umask (007);
 131         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 132
 133         rlimit rl;
 134         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 135         {
 136                 this->Log(DEFAULT,"Failed to getrlimit()!");
 137                 return false;
 138         }
 139         else
 140         {
 141                 rl.rlim_cur = rl.rlim_max;
 142                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 143                         this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 144         }
 145
 146         return true;
 147 }
 148
 149 void InspIRCd::WritePID(const std::string &filename)
 150 {
 151         std::ofstream outfile(filename.c_str());
 152         if (outfile.is_open())
 153         {
 154                 outfile << getpid();
 155                 outfile.close();
 156         }
 157         else
 158         {
 159                 printf("Failed to write PID-file '%s', exiting.\n",filename.c_str());
 160                 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",filename.c_str());
 161                 Exit(0);
 162         }
 163 }
 164
 165 std::string InspIRCd::GetRevision()
 166 {
 167         return REVISION;
 168 }
 169
 170 InspIRCd::InspIRCd(int argc, char** argv)
 171         : ModCount(-1), duration_m(60), duration_h(60*60), duration_d(60*60*24), duration_w(60*60*24*7), duration_y(60*60*24*365)
 172 {
 173         bool SEGVHandler = false;
 174
 175         modules.resize(255);
 176         factory.resize(255);
 177
 178         this->Config = new ServerConfig(this);
 179         this->Start();
 180         this->module_sockets.clear();
 181         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 182         srand(this->TIME);
 183         this->Log(DEBUG,"*** InspIRCd starting up!");
 184         if (!ServerConfig::FileExists(CONFIG_FILE))
 185         {
 186                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
 187                 this->Log(DEFAULT,"main: no config");
 188                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
 189                 Exit(ERROR);
 190         }
 191         *this->LogFileName = 0;
 192         if (argc > 1) {
 193                 for (int i = 1; i < argc; i++)
 194                 {
 195                         if (!strcmp(argv[i],"-nofork"))
 196                         {
 197                                 Config->nofork = true;
 198                         }
 199                         else if(!strcmp(argv[i],"-debug"))
 200                         {
 201                                 Config->forcedebug = true;
 202                         }
 203                         else if(!strcmp(argv[i],"-nolog"))
 204                         {
 205                                 Config->writelog = false;
 206                         }
 207                         else if (!strcmp(argv[i],"-wait"))
 208                         {
 209                                 sleep(6);
 210                         }
 211                         else if (!strcmp(argv[i],"-nolimit"))
 212                         {
 213                                 printf("WARNING: The `-nolimit' option is deprecated, and now on by default. This behaviour may change in the future.\n");
 214                         }
 215                         else if (!strcmp(argv[i],"-notraceback"))
 216                         {
 217                                 SEGVHandler = false;
 218                         }
 219                         else if (!strcmp(argv[i],"-logfile"))
 220                         {
 221                                 if (argc > i+1)
 222                                 {
 223                                         strlcpy(LogFileName,argv[i+1],MAXBUF);
 224                                         printf("LOG: Setting logfile to %s\n",LogFileName);
 225                                 }
 226                                 else
 227                                 {
 228                                         printf("ERROR: The -logfile parameter must be followed by a log file name and path.\n");
 229                                         Exit(ERROR);
 230                                 }
 231                                 i++;
 232                         }
 233                         else
 234                         {
 235                                 printf("Usage: %s [-nofork] [-nolog] [-debug] [-wait] [-nolimit] [-notraceback] [-logfile <filename>]\n",argv[0]);
 236                                 Exit(ERROR);
 237                         }
 238                 }
 239         }
 240
 241         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 242
 243         this->OpenLog(argv, argc);
 244         this->stats = new serverstats();
 245         this->Parser = new CommandParser(this);
 246         this->Timers = new TimerManager();
 247         this->XLines = new XLineManager(this);
 248         Config->ClearStack();
 249         Config->Read(true, NULL);
 250         this->CheckRoot();
 251         this->Modes = new ModeParser(this);
 252         this->AddServerName(Config->ServerName);
 253         CheckDie();
 254         InitializeDisabledCommands(Config->DisabledCommands, this);
 255         stats->BoundPortCount = BindPorts(true);
 256
 257         for(int t = 0; t < 255; t++)
 258                 Config->global_implementation[t] = 0;
 259
 260         memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
 261
 262         printf("\n");
 263         this->SetSignals(SEGVHandler);
 264         if (!Config->nofork)
 265         {
 266                 if (!this->DaemonSeed())
 267                 {
 268                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 269                         Exit(ERROR);
 270                 }
 271         }
 272
 273         /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
 274          * initialize the socket engine.
 275          */
 276         SocketEngineFactory* SEF = new SocketEngineFactory();
 277         SE = SEF->Create(this);
 278         delete SEF;
 279
 280         this->Res = new DNS(this);
 281
 282         this->LoadAllModules();
 283         /* Just in case no modules were loaded - fix for bug #101 */
 284         this->BuildISupport();
 285
 286         if (!stats->BoundPortCount)
 287         {
 288                 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
 289                 Exit(ERROR);
 290         }
 291
 292         /* Add the listening sockets used for client inbound connections
 293          * to the socket engine
 294          */
 295         this->Log(DEBUG,"%d listeners",stats->BoundPortCount);
 296         for (unsigned long count = 0; count < stats->BoundPortCount; count++)
 297         {
 298                 this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]);
 299                 if (!SE->AddFd(Config->openSockfd[count]))
 300                 {
 301                         printf("\nEH? Could not add listener to socketengine. You screwed up, aborting.\n");
 302                         Exit(ERROR);
 303                 }
 304         }
 305
 306         if (!Config->nofork)
 307         {
 308                 if (kill(getppid(), SIGTERM) == -1)
 309                         printf("Error killing parent process: %s\n",strerror(errno));
 310                 fclose(stdin);
 311                 fclose(stderr);
 312                 fclose(stdout);
 313         }
 314
 315         printf("\nInspIRCd is now running!\n");
 316
 317         this->WritePID(Config->PID);
 318 }
 319
 320 std::string InspIRCd::GetVersionString()
 321 {
 322         char versiondata[MAXBUF];
 323         char dnsengine[] = "singlethread-object";
 324         if (*Config->CustomVersion)
 325         {
 326                 snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
 327         }
 328         else
 329         {
 330                 snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%lu,%s,%s]",VERSION,Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
 331         }
 332         return versiondata;
 333 }
 334
 335 char* InspIRCd::ModuleError()
 336 {
 337         return MODERR;
 338 }
 339
 340 void InspIRCd::EraseFactory(int j)
 341 {
 342         int v = 0;
 343         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
 344         {
 345                 if (v == j)
 346                 {
 347                         factory.erase(t);
 348                         factory.push_back(NULL);
 349                         return;
 350                 }
 351                 v++;
 352         }
 353 }
 354
 355 void InspIRCd::EraseModule(int j)
 356 {
 357         int v1 = 0;
 358         for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++)
 359         {
 360                 if (v1 == j)
 361                 {
 362                         DELETE(*m);
 363                         modules.erase(m);
 364                         modules.push_back(NULL);
 365                         break;
 366                 }
 367                 v1++;
 368         }
 369         int v2 = 0;
 370         for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
 371         {
 372                 if (v2 == j)
 373                 {
 374                        Config->module_names.erase(v);
 375                        break;
 376                 }
 377                 v2++;
 378         }
 379
 380 }
 381
 382 void InspIRCd::MoveTo(std::string modulename,int slot)
 383 {
 384         unsigned int v2 = 256;
 385         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 386         {
 387                 if (Config->module_names[v] == modulename)
 388                 {
 389                         // found an instance, swap it with the item at the end
 390                         v2 = v;
 391                         break;
 392                 }
 393         }
 394         if ((v2 != (unsigned int)slot) && (v2 < 256))
 395         {
 396                 // Swap the module names over
 397                 Config->module_names[v2] = Config->module_names[slot];
 398                 Config->module_names[slot] = modulename;
 399                 // now swap the module factories
 400                 ircd_module* temp = factory[v2];
 401                 factory[v2] = factory[slot];
 402                 factory[slot] = temp;
 403                 // now swap the module objects
 404                 Module* temp_module = modules[v2];
 405                 modules[v2] = modules[slot];
 406                 modules[slot] = temp_module;
 407                 // now swap the implement lists (we dont
 408                 // need to swap the global or recount it)
 409                 for (int n = 0; n < 255; n++)
 410                 {
 411                         char x = Config->implement_lists[v2][n];
 412                         Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
 413                         Config->implement_lists[slot][n] = x;
 414                 }
 415         }
 416         else
 417         {
 418                 this->Log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
 419         }
 420 }
 421
 422 void InspIRCd::MoveAfter(std::string modulename, std::string after)
 423 {
 424         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 425         {
 426                 if (Config->module_names[v] == after)
 427                 {
 428                         MoveTo(modulename, v);
 429                         return;
 430                 }
 431         }
 432 }
 433
 434 void InspIRCd::MoveBefore(std::string modulename, std::string before)
 435 {
 436         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 437         {
 438                 if (Config->module_names[v] == before)
 439                 {
 440                         if (v > 0)
 441                         {
 442                                 MoveTo(modulename, v-1);
 443                         }
 444                         else
 445                         {
 446                                 MoveTo(modulename, v);
 447                         }
 448                         return;
 449                 }
 450         }
 451 }
 452
 453 void InspIRCd::MoveToFirst(std::string modulename)
 454 {
 455         MoveTo(modulename,0);
 456 }
 457
 458 void InspIRCd::MoveToLast(std::string modulename)
 459 {
 460         MoveTo(modulename,this->GetModuleCount());
 461 }
 462
 463 void InspIRCd::BuildISupport()
 464 {
 465         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
 466         std::stringstream v;
 467         v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=(ohv)@%+ MAP MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
 468         v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
 469         v << MAXAWAY << " CHANMODES=b,k,l,psmnti FNC NETWORK=" << Config->Network << " MAXPARA=32";
 470         Config->data005 = v.str();
 471         FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
 472 }
 473
 474 bool InspIRCd::UnloadModule(const char* filename)
 475 {
 476         std::string filename_str = filename;
 477         for (unsigned int j = 0; j != Config->module_names.size(); j++)
 478         {
 479                 if (Config->module_names[j] == filename_str)
 480                 {
 481                         if (modules[j]->GetVersion().Flags & VF_STATIC)
 482                         {
 483                                 this->Log(DEFAULT,"Failed to unload STATIC module %s",filename);
 484                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
 485                                 return false;
 486                         }
 487                         /* Give the module a chance to tidy out all its metadata */
 488                         for (chan_hash::iterator c = this->chanlist.begin(); c != this->chanlist.end(); c++)
 489                         {
 490                                 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
 491                         }
 492                         for (user_hash::iterator u = this->clientlist.begin(); u != this->clientlist.end(); u++)
 493                         {
 494                                 modules[j]->OnCleanup(TYPE_USER,u->second);
 495                         }
 496
 497                         FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
 498
 499                         for(int t = 0; t < 255; t++)
 500                         {
 501                                 Config->global_implementation[t] -= Config->implement_lists[j][t];
 502                         }
 503
 504                         /* We have to renumber implement_lists after unload because the module numbers change!
 505                          */
 506                         for(int j2 = j; j2 < 254; j2++)
 507                         {
 508                                 for(int t = 0; t < 255; t++)
 509                                 {
 510                                         Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
 511                                 }
 512                         }
 513
 514                         // found the module
 515                         this->Log(DEBUG,"Removing dependent commands...");
 516                         Parser->RemoveCommands(filename);
 517                         this->Log(DEBUG,"Deleting module...");
 518                         this->EraseModule(j);
 519                         this->Log(DEBUG,"Erasing module entry...");
 520                         this->EraseFactory(j);
 521                         this->Log(DEFAULT,"Module %s unloaded",filename);
 522                         this->ModCount--;
 523                         BuildISupport();
 524                         return true;
 525                 }
 526         }
 527         this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
 528         snprintf(MODERR,MAXBUF,"Module not loaded");
 529         return false;
 530 }
 531
 532 bool InspIRCd::LoadModule(const char* filename)
 533 {
 534         char modfile[MAXBUF];
 535 #ifdef STATIC_LINK
 536         strlcpy(modfile,filename,MAXBUF);
 537 #else
 538         snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
 539 #endif
 540         std::string filename_str = filename;
 541 #ifndef STATIC_LINK
 542 #ifndef IS_CYGWIN
 543         if (!ServerConfig::DirValid(modfile))
 544         {
 545                 this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile);
 546                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
 547                 return false;
 548         }
 549 #endif
 550 #endif
 551         this->Log(DEBUG,"Loading module: %s",modfile);
 552 #ifndef STATIC_LINK
 553         if (ServerConfig::FileExists(modfile))
 554         {
 555 #endif
 556                 for (unsigned int j = 0; j < Config->module_names.size(); j++)
 557                 {
 558                         if (Config->module_names[j] == filename_str)
 559                         {
 560                                 this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
 561                                 snprintf(MODERR,MAXBUF,"Module already loaded");
 562                                 return false;
 563                         }
 564                 }
 565                 try
 566                 {
 567                         ircd_module* a = new ircd_module(this, modfile);
 568                         factory[this->ModCount+1] = a;
 569                         if (factory[this->ModCount+1]->LastError())
 570                         {
 571                                 this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError());
 572                                 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError());
 573                                 return false;
 574                         }
 575                         if ((long)factory[this->ModCount+1]->factory != -1)
 576                         {
 577                                 Module* m = factory[this->ModCount+1]->factory->CreateModule(this);
 578                                 modules[this->ModCount+1] = m;
 579                                 /* save the module and the module's classfactory, if
 580                                  * this isnt done, random crashes can occur :/ */
 581                                 Config->module_names.push_back(filename);
 582
 583                                 char* x = &Config->implement_lists[this->ModCount+1][0];
 584                                 for(int t = 0; t < 255; t++)
 585                                         x[t] = 0;
 586
 587                                 modules[this->ModCount+1]->Implements(x);
 588
 589                                 for(int t = 0; t < 255; t++)
 590                                         Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t];
 591                         }
 592                         else
 593                         {
 594                                 this->Log(DEFAULT,"Unable to load %s",modfile);
 595                                 snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint.");
 596                                 return false;
 597                         }
 598                 }
 599                 catch (ModuleException& modexcept)
 600                 {
 601                         this->Log(DEFAULT,"Unable to load %s: ",modfile,modexcept.GetReason());
 602                         snprintf(MODERR,MAXBUF,"Factory function threw an exception: %s",modexcept.GetReason());
 603                         return false;
 604                 }
 605 #ifndef STATIC_LINK
 606         }
 607         else
 608         {
 609                 this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
 610                 snprintf(MODERR,MAXBUF,"Module file could not be found");
 611                 return false;
 612         }
 613 #endif
 614         this->ModCount++;
 615         FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str));
 616         // now work out which modules, if any, want to move to the back of the queue,
 617         // and if they do, move them there.
 618         std::vector<std::string> put_to_back;
 619         std::vector<std::string> put_to_front;
 620         std::map<std::string,std::string> put_before;
 621         std::map<std::string,std::string> put_after;
 622         for (unsigned int j = 0; j < Config->module_names.size(); j++)
 623         {
 624                 if (modules[j]->Prioritize() == PRIORITY_LAST)
 625                         put_to_back.push_back(Config->module_names[j]);
 626                 else if (modules[j]->Prioritize() == PRIORITY_FIRST)
 627                         put_to_front.push_back(Config->module_names[j]);
 628                 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)
 629                         put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
 630                 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
 631                         put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
 632         }
 633         for (unsigned int j = 0; j < put_to_back.size(); j++)
 634                 MoveToLast(put_to_back[j]);
 635         for (unsigned int j = 0; j < put_to_front.size(); j++)
 636                 MoveToFirst(put_to_front[j]);
 637         for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)
 638                 MoveBefore(j->first,j->second);
 639         for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)
 640                 MoveAfter(j->first,j->second);
 641         BuildISupport();
 642         return true;
 643 }
 644
 645 void InspIRCd::DoOneIteration(bool process_module_sockets)
 646 {
 647         /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 648          * Once per loop iteration is pleanty.
 649          */
 650         OLDTIME = TIME;
 651         TIME = time(NULL);
 652
 653         /* Run background module timers every few seconds
 654          * (the docs say modules shouldnt rely on accurate
 655          * timing using this event, so we dont have to
 656          * time this exactly).
 657          */
 658         if (TIME != OLDTIME)
 659         {
 660                 if (TIME < OLDTIME)
 661                         WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
 662                 if ((TIME % 3600) == 0)
 663                 {
 664                         irc::whowas::MaintainWhoWas(TIME);
 665                 }
 666                 Timers->TickTimers(TIME);
 667                 if (process_module_sockets)
 668                         this->DoSocketTimeouts(TIME);
 669                 this->DoBackgroundUserStuff(TIME);
 670
 671                 if ((TIME % 5) == 0)
 672                 {
 673                         XLines->expire_lines();
 674                         FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 675                         Timers->TickMissedTimers(TIME);
 676                 }
 677         }
 678
 679         /* Call the socket engine to wait on the active
 680          * file descriptors. The socket engine has everything's
 681          * descriptors in its list... dns, modules, users,
 682          * servers... so its nice and easy, just one call.
 683          * This will cause any read or write events to be
 684          * dispatched to their handlers.
 685          */
 686         SE->DispatchEvents();
 687 }
 688
 689 bool InspIRCd::IsIdent(const char* n)
 690 {
 691         if (!n || !*n)
 692                 return false;
 693
 694         for (char* i = (char*)n; *i; i++)
 695         {
 696                 if ((*i >= 'A') && (*i <= '}'))
 697                 {
 698                         continue;
 699                 }
 700                 if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
 701                 {
 702                         continue;
 703                 }
 704                 return false;
 705         }
 706         return true;
 707 }
 708
 709
 710 bool InspIRCd::IsNick(const char* n)
 711 {
 712         if (!n || !*n)
 713                 return false;
 714
 715         int p = 0;
 716         for (char* i = (char*)n; *i; i++, p++)
 717         {
 718                 /* "A"-"}" can occur anywhere in a nickname */
 719                 if ((*i >= 'A') && (*i <= '}'))
 720                 {
 721                         continue;
 722                 }
 723                 /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */
 724                 if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i > n))
 725                 {
 726                         continue;
 727                 }
 728                 /* invalid character! abort */
 729                 return false;
 730         }
 731         return (p < NICKMAX - 1);
 732 }
 733
 734 int InspIRCd::Run()
 735 {
 736         while (true)
 737         {
 738                 DoOneIteration(true);
 739         }
 740         /* This is never reached -- we hope! */
 741         return 0;
 742 }
 743
 744 /**********************************************************************************/
 745
 746 /**
 747  * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
 748  */
 749
 750 int main(int argc, char** argv)
 751 {
 752         SI = new InspIRCd(argc, argv);
 753         SI->Run();
 754         delete SI;
 755         return 0;
 756 }
 757
 758 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 759  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 760  * registration timeout maximum seconds)
 761  */
 762 bool InspIRCd::AllModulesReportReady(userrec* user)
 763 {
 764         if (!Config->global_implementation[I_OnCheckReady])
 765                 return true;
 766
 767         for (int i = 0; i <= this->GetModuleCount(); i++)
 768         {
 769                 if (Config->implement_lists[i][I_OnCheckReady])
 770                 {
 771                         int res = modules[i]->OnCheckReady(user);
 772                         if (!res)
 773                                 return false;
 774                 }
 775         }
 776         return true;
 777 }
 778
 779 int InspIRCd::GetModuleCount()
 780 {
 781         return this->ModCount;
 782 }
 783
 784 time_t InspIRCd::Time()
 785 {
 786         return TIME;
 787 }
 788