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         signal(SIGCHLD, SIG_IGN);
 115 }
 116
 117 bool InspIRCd::DaemonSeed()
 118 {
 119         int childpid;
 120         if ((childpid = fork ()) < 0)
 121                 return (ERROR);
 122         else if (childpid > 0)
 123         {
 124                 /* We wait here for the child process to kill us,
 125                  * so that the shell prompt doesnt come back over
 126                  * the output.
 127                  * Sending a kill with a signal of 0 just checks
 128                  * if the child pid is still around. If theyre not,
 129                  * they threw an error and we should give up.
 130                  */
 131                 while (kill(childpid, 0) != -1)
 132                 {
 133                         sleep(1);
 134                 }
 135                 exit(ERROR);
 136         }
 137         setsid ();
 138         umask (007);
 139         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 140
 141         rlimit rl;
 142         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 143         {
 144                 this->Log(DEFAULT,"Failed to getrlimit()!");
 145                 return false;
 146         }
 147         else
 148         {
 149                 rl.rlim_cur = rl.rlim_max;
 150                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 151                         this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 152         }
 153
 154         return true;
 155 }
 156
 157 void InspIRCd::WritePID(const std::string &filename)
 158 {
 159         std::ofstream outfile(filename.c_str());
 160         if (outfile.is_open())
 161         {
 162                 outfile << getpid();
 163                 outfile.close();
 164         }
 165         else
 166         {
 167                 printf("Failed to write PID-file '%s', exiting.\n",filename.c_str());
 168                 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",filename.c_str());
 169                 Exit(0);
 170         }
 171 }
 172
 173 std::string InspIRCd::GetRevision()
 174 {
 175         return REVISION;
 176 }
 177
 178 InspIRCd::InspIRCd(int argc, char** argv)
 179         : 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)
 180 {
 181         bool SEGVHandler = false;
 182
 183         modules.resize(255);
 184         factory.resize(255);
 185
 186         this->Config = new ServerConfig(this);
 187         this->Start();
 188         this->module_sockets.clear();
 189         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 190         srand(this->TIME);
 191         this->Log(DEBUG,"*** InspIRCd starting up!");
 192         if (!ServerConfig::FileExists(CONFIG_FILE))
 193         {
 194                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
 195                 this->Log(DEFAULT,"main: no config");
 196                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
 197                 Exit(ERROR);
 198         }
 199         *this->LogFileName = 0;
 200         if (argc > 1) {
 201                 for (int i = 1; i < argc; i++)
 202                 {
 203                         if (!strcmp(argv[i],"-nofork"))
 204                         {
 205                                 Config->nofork = true;
 206                         }
 207                         else if(!strcmp(argv[i],"-debug"))
 208                         {
 209                                 Config->forcedebug = true;
 210                         }
 211                         else if(!strcmp(argv[i],"-nolog"))
 212                         {
 213                                 Config->writelog = false;
 214                         }
 215                         else if (!strcmp(argv[i],"-wait"))
 216                         {
 217                                 sleep(6);
 218                         }
 219                         else if (!strcmp(argv[i],"-nolimit"))
 220                         {
 221                                 printf("WARNING: The `-nolimit' option is deprecated, and now on by default. This behaviour may change in the future.\n");
 222                         }
 223                         else if (!strcmp(argv[i],"-notraceback"))
 224                         {
 225                                 SEGVHandler = false;
 226                         }
 227                         else if (!strcmp(argv[i],"-logfile"))
 228                         {
 229                                 if (argc > i+1)
 230                                 {
 231                                         strlcpy(LogFileName,argv[i+1],MAXBUF);
 232                                         printf("LOG: Setting logfile to %s\n",LogFileName);
 233                                 }
 234                                 else
 235                                 {
 236                                         printf("ERROR: The -logfile parameter must be followed by a log file name and path.\n");
 237                                         Exit(ERROR);
 238                                 }
 239                                 i++;
 240                         }
 241                         else
 242                         {
 243                                 printf("Usage: %s [-nofork] [-nolog] [-debug] [-wait] [-nolimit] [-notraceback] [-logfile <filename>]\n",argv[0]);
 244                                 Exit(ERROR);
 245                         }
 246                 }
 247         }
 248
 249         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 250
 251         this->OpenLog(argv, argc);
 252         this->stats = new serverstats();
 253         this->Parser = new CommandParser(this);
 254         this->Timers = new TimerManager();
 255         this->XLines = new XLineManager(this);
 256         Config->ClearStack();
 257         Config->Read(true, NULL);
 258         this->CheckRoot();
 259         this->Modes = new ModeParser(this);
 260         this->AddServerName(Config->ServerName);
 261         CheckDie();
 262         InitializeDisabledCommands(Config->DisabledCommands, this);
 263         stats->BoundPortCount = BindPorts(true);
 264
 265         for(int t = 0; t < 255; t++)
 266                 Config->global_implementation[t] = 0;
 267
 268         memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
 269
 270         printf("\n");
 271         this->SetSignals(SEGVHandler);
 272         if (!Config->nofork)
 273         {
 274                 if (!this->DaemonSeed())
 275                 {
 276                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 277                         Exit(ERROR);
 278                 }
 279         }
 280
 281         /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
 282          * initialize the socket engine.
 283          */
 284         SocketEngineFactory* SEF = new SocketEngineFactory();
 285         SE = SEF->Create(this);
 286         delete SEF;
 287
 288         this->Res = new DNS(this);
 289
 290         this->LoadAllModules();
 291         /* Just in case no modules were loaded - fix for bug #101 */
 292         this->BuildISupport();
 293
 294         if (!stats->BoundPortCount)
 295         {
 296                 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
 297                 Exit(ERROR);
 298         }
 299
 300         /* Add the listening sockets used for client inbound connections
 301          * to the socket engine
 302          */
 303         this->Log(DEBUG,"%d listeners",stats->BoundPortCount);
 304         for (unsigned long count = 0; count < stats->BoundPortCount; count++)
 305         {
 306                 this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]);
 307                 if (!SE->AddFd(Config->openSockfd[count]))
 308                 {
 309                         printf("\nEH? Could not add listener to socketengine. You screwed up, aborting.\n");
 310                         Exit(ERROR);
 311                 }
 312         }
 313
 314         if (!Config->nofork)
 315         {
 316                 if (kill(getppid(), SIGTERM) == -1)
 317                         printf("Error killing parent process: %s\n",strerror(errno));
 318                 fclose(stdin);
 319                 fclose(stderr);
 320                 fclose(stdout);
 321         }
 322
 323         printf("\nInspIRCd is now running!\n");
 324
 325         this->WritePID(Config->PID);
 326 }
 327
 328 std::string InspIRCd::GetVersionString()
 329 {
 330         char versiondata[MAXBUF];
 331         char dnsengine[] = "singlethread-object";
 332         if (*Config->CustomVersion)
 333         {
 334                 snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
 335         }
 336         else
 337         {
 338                 snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%lu,%s,%s]",VERSION,Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
 339         }
 340         return versiondata;
 341 }
 342
 343 char* InspIRCd::ModuleError()
 344 {
 345         return MODERR;
 346 }
 347
 348 void InspIRCd::EraseFactory(int j)
 349 {
 350         int v = 0;
 351         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
 352         {
 353                 if (v == j)
 354                 {
 355                         factory.erase(t);
 356                         factory.push_back(NULL);
 357                         return;
 358                 }
 359                 v++;
 360         }
 361 }
 362
 363 void InspIRCd::EraseModule(int j)
 364 {
 365         int v1 = 0;
 366         for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++)
 367         {
 368                 if (v1 == j)
 369                 {
 370                         DELETE(*m);
 371                         modules.erase(m);
 372                         modules.push_back(NULL);
 373                         break;
 374                 }
 375                 v1++;
 376         }
 377         int v2 = 0;
 378         for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
 379         {
 380                 if (v2 == j)
 381                 {
 382                        Config->module_names.erase(v);
 383                        break;
 384                 }
 385                 v2++;
 386         }
 387
 388 }
 389
 390 void InspIRCd::MoveTo(std::string modulename,int slot)
 391 {
 392         unsigned int v2 = 256;
 393         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 394         {
 395                 if (Config->module_names[v] == modulename)
 396                 {
 397                         // found an instance, swap it with the item at the end
 398                         v2 = v;
 399                         break;
 400                 }
 401         }
 402         if ((v2 != (unsigned int)slot) && (v2 < 256))
 403         {
 404                 // Swap the module names over
 405                 Config->module_names[v2] = Config->module_names[slot];
 406                 Config->module_names[slot] = modulename;
 407                 // now swap the module factories
 408                 ircd_module* temp = factory[v2];
 409                 factory[v2] = factory[slot];
 410                 factory[slot] = temp;
 411                 // now swap the module objects
 412                 Module* temp_module = modules[v2];
 413                 modules[v2] = modules[slot];
 414                 modules[slot] = temp_module;
 415                 // now swap the implement lists (we dont
 416                 // need to swap the global or recount it)
 417                 for (int n = 0; n < 255; n++)
 418                 {
 419                         char x = Config->implement_lists[v2][n];
 420                         Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
 421                         Config->implement_lists[slot][n] = x;
 422                 }
 423         }
 424         else
 425         {
 426                 this->Log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
 427         }
 428 }
 429
 430 void InspIRCd::MoveAfter(std::string modulename, std::string after)
 431 {
 432         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 433         {
 434                 if (Config->module_names[v] == after)
 435                 {
 436                         MoveTo(modulename, v);
 437                         return;
 438                 }
 439         }
 440 }
 441
 442 void InspIRCd::MoveBefore(std::string modulename, std::string before)
 443 {
 444         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 445         {
 446                 if (Config->module_names[v] == before)
 447                 {
 448                         if (v > 0)
 449                         {
 450                                 MoveTo(modulename, v-1);
 451                         }
 452                         else
 453                         {
 454                                 MoveTo(modulename, v);
 455                         }
 456                         return;
 457                 }
 458         }
 459 }
 460
 461 void InspIRCd::MoveToFirst(std::string modulename)
 462 {
 463         MoveTo(modulename,0);
 464 }
 465
 466 void InspIRCd::MoveToLast(std::string modulename)
 467 {
 468         MoveTo(modulename,this->GetModuleCount());
 469 }
 470
 471 void InspIRCd::BuildISupport()
 472 {
 473         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
 474         std::stringstream v;
 475         v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=(ohv)@%+ MAP MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
 476         v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
 477         v << MAXAWAY << " CHANMODES=b,k,l,psmnti FNC NETWORK=" << Config->Network << " MAXPARA=32";
 478         Config->data005 = v.str();
 479         FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
 480 }
 481
 482 bool InspIRCd::UnloadModule(const char* filename)
 483 {
 484         std::string filename_str = filename;
 485         for (unsigned int j = 0; j != Config->module_names.size(); j++)
 486         {
 487                 if (Config->module_names[j] == filename_str)
 488                 {
 489                         if (modules[j]->GetVersion().Flags & VF_STATIC)
 490                         {
 491                                 this->Log(DEFAULT,"Failed to unload STATIC module %s",filename);
 492                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
 493                                 return false;
 494                         }
 495                         /* Give the module a chance to tidy out all its metadata */
 496                         for (chan_hash::iterator c = this->chanlist.begin(); c != this->chanlist.end(); c++)
 497                         {
 498                                 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
 499                         }
 500                         for (user_hash::iterator u = this->clientlist.begin(); u != this->clientlist.end(); u++)
 501                         {
 502                                 modules[j]->OnCleanup(TYPE_USER,u->second);
 503                         }
 504
 505                         FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
 506
 507                         for(int t = 0; t < 255; t++)
 508                         {
 509                                 Config->global_implementation[t] -= Config->implement_lists[j][t];
 510                         }
 511
 512                         /* We have to renumber implement_lists after unload because the module numbers change!
 513                          */
 514                         for(int j2 = j; j2 < 254; j2++)
 515                         {
 516                                 for(int t = 0; t < 255; t++)
 517                                 {
 518                                         Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
 519                                 }
 520                         }
 521
 522                         // found the module
 523                         this->Log(DEBUG,"Removing dependent commands...");
 524                         Parser->RemoveCommands(filename);
 525                         this->Log(DEBUG,"Deleting module...");
 526                         this->EraseModule(j);
 527                         this->Log(DEBUG,"Erasing module entry...");
 528                         this->EraseFactory(j);
 529                         this->Log(DEFAULT,"Module %s unloaded",filename);
 530                         this->ModCount--;
 531                         BuildISupport();
 532                         return true;
 533                 }
 534         }
 535         this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
 536         snprintf(MODERR,MAXBUF,"Module not loaded");
 537         return false;
 538 }
 539
 540 bool InspIRCd::LoadModule(const char* filename)
 541 {
 542         char modfile[MAXBUF];
 543 #ifdef STATIC_LINK
 544         strlcpy(modfile,filename,MAXBUF);
 545 #else
 546         snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
 547 #endif
 548         std::string filename_str = filename;
 549 #ifndef STATIC_LINK
 550 #ifndef IS_CYGWIN
 551         if (!ServerConfig::DirValid(modfile))
 552         {
 553                 this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile);
 554                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
 555                 return false;
 556         }
 557 #endif
 558 #endif
 559         this->Log(DEBUG,"Loading module: %s",modfile);
 560 #ifndef STATIC_LINK
 561         if (ServerConfig::FileExists(modfile))
 562         {
 563 #endif
 564                 for (unsigned int j = 0; j < Config->module_names.size(); j++)
 565                 {
 566                         if (Config->module_names[j] == filename_str)
 567                         {
 568                                 this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
 569                                 snprintf(MODERR,MAXBUF,"Module already loaded");
 570                                 return false;
 571                         }
 572                 }
 573                 try
 574                 {
 575                         ircd_module* a = new ircd_module(this, modfile);
 576                         factory[this->ModCount+1] = a;
 577                         if (factory[this->ModCount+1]->LastError())
 578                         {
 579                                 this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError());
 580                                 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError());
 581                                 return false;
 582                         }
 583                         if ((long)factory[this->ModCount+1]->factory != -1)
 584                         {
 585                                 Module* m = factory[this->ModCount+1]->factory->CreateModule(this);
 586                                 modules[this->ModCount+1] = m;
 587                                 /* save the module and the module's classfactory, if
 588                                  * this isnt done, random crashes can occur :/ */
 589                                 Config->module_names.push_back(filename);
 590
 591                                 char* x = &Config->implement_lists[this->ModCount+1][0];
 592                                 for(int t = 0; t < 255; t++)
 593                                         x[t] = 0;
 594
 595                                 modules[this->ModCount+1]->Implements(x);
 596
 597                                 for(int t = 0; t < 255; t++)
 598                                         Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t];
 599                         }
 600                         else
 601                         {
 602                                 this->Log(DEFAULT,"Unable to load %s",modfile);
 603                                 snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint.");
 604                                 return false;
 605                         }
 606                 }
 607                 catch (ModuleException& modexcept)
 608                 {
 609                         this->Log(DEFAULT,"Unable to load %s: ",modfile,modexcept.GetReason());
 610                         snprintf(MODERR,MAXBUF,"Factory function threw an exception: %s",modexcept.GetReason());
 611                         return false;
 612                 }
 613 #ifndef STATIC_LINK
 614         }
 615         else
 616         {
 617                 this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
 618                 snprintf(MODERR,MAXBUF,"Module file could not be found");
 619                 return false;
 620         }
 621 #endif
 622         this->ModCount++;
 623         FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str));
 624         // now work out which modules, if any, want to move to the back of the queue,
 625         // and if they do, move them there.
 626         std::vector<std::string> put_to_back;
 627         std::vector<std::string> put_to_front;
 628         std::map<std::string,std::string> put_before;
 629         std::map<std::string,std::string> put_after;
 630         for (unsigned int j = 0; j < Config->module_names.size(); j++)
 631         {
 632                 if (modules[j]->Prioritize() == PRIORITY_LAST)
 633                         put_to_back.push_back(Config->module_names[j]);
 634                 else if (modules[j]->Prioritize() == PRIORITY_FIRST)
 635                         put_to_front.push_back(Config->module_names[j]);
 636                 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)
 637                         put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
 638                 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
 639                         put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
 640         }
 641         for (unsigned int j = 0; j < put_to_back.size(); j++)
 642                 MoveToLast(put_to_back[j]);
 643         for (unsigned int j = 0; j < put_to_front.size(); j++)
 644                 MoveToFirst(put_to_front[j]);
 645         for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)
 646                 MoveBefore(j->first,j->second);
 647         for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)
 648                 MoveAfter(j->first,j->second);
 649         BuildISupport();
 650         return true;
 651 }
 652
 653 void InspIRCd::DoOneIteration(bool process_module_sockets)
 654 {
 655         /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 656          * Once per loop iteration is pleanty.
 657          */
 658         OLDTIME = TIME;
 659         TIME = time(NULL);
 660
 661         /* Run background module timers every few seconds
 662          * (the docs say modules shouldnt rely on accurate
 663          * timing using this event, so we dont have to
 664          * time this exactly).
 665          */
 666         if (TIME != OLDTIME)
 667         {
 668                 if (TIME < OLDTIME)
 669                         WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
 670                 if ((TIME % 3600) == 0)
 671                 {
 672                         irc::whowas::MaintainWhoWas(TIME);
 673                 }
 674                 Timers->TickTimers(TIME);
 675                 if (process_module_sockets)
 676                         this->DoSocketTimeouts(TIME);
 677                 this->DoBackgroundUserStuff(TIME);
 678
 679                 if ((TIME % 5) == 0)
 680                 {
 681                         XLines->expire_lines();
 682                         FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 683                         Timers->TickMissedTimers(TIME);
 684                 }
 685         }
 686
 687         /* Call the socket engine to wait on the active
 688          * file descriptors. The socket engine has everything's
 689          * descriptors in its list... dns, modules, users,
 690          * servers... so its nice and easy, just one call.
 691          * This will cause any read or write events to be
 692          * dispatched to their handlers.
 693          */
 694         SE->DispatchEvents();
 695 }
 696
 697 bool InspIRCd::IsIdent(const char* n)
 698 {
 699         if (!n || !*n)
 700                 return false;
 701
 702         for (char* i = (char*)n; *i; i++)
 703         {
 704                 if ((*i >= 'A') && (*i <= '}'))
 705                 {
 706                         continue;
 707                 }
 708                 if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
 709                 {
 710                         continue;
 711                 }
 712                 return false;
 713         }
 714         return true;
 715 }
 716
 717
 718 bool InspIRCd::IsNick(const char* n)
 719 {
 720         if (!n || !*n)
 721                 return false;
 722
 723         int p = 0;
 724         for (char* i = (char*)n; *i; i++, p++)
 725         {
 726                 /* "A"-"}" can occur anywhere in a nickname */
 727                 if ((*i >= 'A') && (*i <= '}'))
 728                 {
 729                         continue;
 730                 }
 731                 /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */
 732                 if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i > n))
 733                 {
 734                         continue;
 735                 }
 736                 /* invalid character! abort */
 737                 return false;
 738         }
 739         return (p < NICKMAX - 1);
 740 }
 741
 742 int InspIRCd::Run()
 743 {
 744         while (true)
 745         {
 746                 DoOneIteration(true);
 747         }
 748         /* This is never reached -- we hope! */
 749         return 0;
 750 }
 751
 752 /**********************************************************************************/
 753
 754 /**
 755  * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
 756  */
 757
 758 int main(int argc, char** argv)
 759 {
 760         SI = new InspIRCd(argc, argv);
 761         SI->Run();
 762         delete SI;
 763         return 0;
 764 }
 765
 766 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 767  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 768  * registration timeout maximum seconds)
 769  */
 770 bool InspIRCd::AllModulesReportReady(userrec* user)
 771 {
 772         if (!Config->global_implementation[I_OnCheckReady])
 773                 return true;
 774
 775         for (int i = 0; i <= this->GetModuleCount(); i++)
 776         {
 777                 if (Config->implement_lists[i][I_OnCheckReady])
 778                 {
 779                         int res = modules[i]->OnCheckReady(user);
 780                         if (!res)
 781                                 return false;
 782                 }
 783         }
 784         return true;
 785 }
 786
 787 int InspIRCd::GetModuleCount()
 788 {
 789         return this->ModCount;
 790 }
 791
 792 time_t InspIRCd::Time()
 793 {
 794         return TIME;
 795 }
 796