src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* w00t was here. ;p */
  15
  16 /* $Install: src/inspircd $(BINPATH) */
  17 #include "inspircd.h"
  18 #include <signal.h>
  19
  20 #ifndef WIN32
  21         #include <dirent.h>
  22         #include <unistd.h>
  23         #include <sys/resource.h>
  24         #include <dlfcn.h>
  25         #include <getopt.h>
  26
  27         /* Some systems don't define RUSAGE_SELF. This should fix them. */
  28         #ifndef RUSAGE_SELF
  29                 #define RUSAGE_SELF 0
  30         #endif
  31
  32         /* CRT memory debugging */
  33         #ifdef DEBUG
  34         #define _CRTDBG_MAP_ALLOC
  35         #include <stdlib.h>
  36         #include <crtdbg.h>
  37         #endif
  38 #endif
  39
  40 #include <fstream>
  41 #include "xline.h"
  42 #include "bancache.h"
  43 #include "socketengine.h"
  44 #include "inspircd_se_config.h"
  45 #include "socket.h"
  46 #include "command_parse.h"
  47 #include "exitcodes.h"
  48 #include "caller.h"
  49 #include "testsuite.h"
  50
  51 using irc::sockets::insp_ntoa;
  52 using irc::sockets::insp_inaddr;
  53 using irc::sockets::insp_sockaddr;
  54
  55 InspIRCd* SI = NULL;
  56 int* mysig = NULL;
  57
  58
  59 /* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
  60  * XXX this is a bit ugly. -- w00t
  61  */
  62 const char* ExitCodes[] =
  63 {
  64                 "No error", /* 0 */
  65                 "DIE command", /* 1 */
  66                 "execv() failed", /* 2 */
  67                 "Internal error", /* 3 */
  68                 "Config file error", /* 4 */
  69                 "Logfile error", /* 5 */
  70                 "POSIX fork failed", /* 6 */
  71                 "Bad commandline parameters", /* 7 */
  72                 "No ports could be bound", /* 8 */
  73                 "Can't write PID file", /* 9 */
  74                 "SocketEngine could not initialize", /* 10 */
  75                 "Refusing to start up as root", /* 11 */
  76                 "Found a <die> tag!", /* 12 */
  77                 "Couldn't load module on startup", /* 13 */
  78                 "Could not create windows forked process", /* 14 */
  79                 "Received SIGTERM", /* 15 */
  80 };
  81
  82 void InspIRCd::Cleanup()
  83 {
  84         if (Config)
  85         {
  86                 for (unsigned int i = 0; i < Config->ports.size(); i++)
  87                 {
  88                         /* This calls the constructor and closes the listening socket */
  89                         delete Config->ports[i];
  90                 }
  91
  92                 Config->ports.clear();
  93         }
  94
  95         /* Close all client sockets, or the new process inherits them */
  96         for (std::vector<User*>::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++)
  97         {
  98                 this->Users->QuitUser((*i), "Server shutdown");
  99                 (*i)->CloseSocket();
 100         }
 101
 102         /* We do this more than once, so that any service providers get a
 103          * chance to be unhooked by the modules using them, but then get
 104          * a chance to be removed themsleves.
 105          *
 106          * XXX there may be a better way to do this with 1.2
 107          */
 108         for (int tries = 0; tries < 3; tries++)
 109         {
 110                 std::vector<std::string> module_names = Modules->GetAllModuleNames(0);
 111                 for (std::vector<std::string>::iterator k = module_names.begin(); k != module_names.end(); ++k)
 112                 {
 113                         /* Unload all modules, so they get a chance to clean up their listeners */
 114                         this->Modules->Unload(k->c_str());
 115                 }
 116         }
 117         /* Remove core commands */
 118         Parser->RemoveCommands("<core>");
 119
 120         /* Cleanup Server Names */
 121         for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)
 122                 delete (*itr);
 123
 124         /* Delete objects dynamically allocated in constructor
 125          * (destructor would be more appropriate, but we're likely exiting)
 126          */
 127
 128         // Must be deleted before modes as it decrements modelines
 129         if (this->Users)
 130         {
 131                 delete this->Users;
 132                 this->Users = 0;
 133         }
 134
 135         if (this->Modes)
 136         {
 137                 delete this->Modes;
 138                 this->Modes = 0;
 139         }
 140
 141         if (this->XLines)
 142         {
 143                 delete this->XLines;
 144                 this->XLines = 0;
 145         }
 146
 147         if (this->Parser)
 148         {
 149                 delete this->Parser;
 150                 this->Parser = 0;
 151
 152         if (this->stats)
 153         {
 154                 delete this->stats;
 155                 this->stats = 0;
 156         }
 157
 158         if (this->Modules)
 159         {
 160                 delete this->Modules;
 161                 this->Modules = 0;
 162         }
 163
 164         if (this->BanCache)
 165                 delete this->BanCache;
 166                 this->BanCache = 0;
 167         }
 168
 169         if (this->SNO)
 170         {
 171                 delete this->SNO;
 172                 this->SNO = 0;
 173         }
 174
 175         if (this->Config)
 176         {
 177                 delete this->Config;
 178                 this->Config = 0;
 179         }
 180
 181         if (this->Res)
 182         {
 183                 delete this->Res;
 184                 this->Res = 0;
 185         }
 186
 187         if (this->chanlist)
 188         {
 189                 delete chanlist;
 190                 chanlist = 0;
 191         }
 192
 193         if (this->PI)
 194         {
 195                 delete this->PI;
 196                 this->PI = 0;
 197         }
 198
 199         if (this->Threads)
 200         {
 201                 delete this->Threads;
 202                 this->Threads = 0;
 203         }
 204
 205         /* Needs to be deleted after Res, DNS has a timer */
 206         if (this->Timers)
 207         {
 208                 delete this->Timers;
 209                 this->Timers = 0;
 210         }
 211
 212         /* Close logging */
 213         this->Logs->CloseLogs();
 214
 215         if (this->Logs)
 216         {
 217                 delete this->Logs;
 218                 this->Logs = 0;
 219         }
 220 }
 221
 222 void InspIRCd::Restart(const std::string &reason)
 223 {
 224         /* SendError flushes each client's queue,
 225          * regardless of writeability state
 226          */
 227         this->SendError(reason);
 228
 229         /* Figure out our filename (if theyve renamed it, we're boned) */
 230         std::string me;
 231
 232 #ifdef WINDOWS
 233         char module[MAX_PATH];
 234         if (GetModuleFileName(NULL, module, MAX_PATH))
 235                 me = module;
 236 #else
 237         me = Config->MyDir + "/inspircd";
 238 #endif
 239
 240         char** argv = Config->argv;
 241
 242         this->Cleanup();
 243
 244         if (execv(me.c_str(), argv) == -1)
 245         {
 246                 /* Will raise a SIGABRT if not trapped */
 247                 throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));
 248         }
 249 }
 250
 251 void InspIRCd::ResetMaxBans()
 252 {
 253         for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)
 254                 i->second->ResetMaxBans();
 255 }
 256
 257 /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')
 258  * we must occasionally rehash the hash (yes really).
 259  * We do this by copying the entries from the old hash to a new hash, causing all
 260  * empty buckets to be weeded out of the hash. We dont do this on a timer, as its
 261  * very expensive, so instead we do it when the user types /REHASH and expects a
 262  * short delay anyway.
 263  */
 264 void InspIRCd::RehashUsersAndChans()
 265 {
 266         user_hash* old_users = this->Users->clientlist;
 267         user_hash* old_uuid  = this->Users->uuidlist;
 268         chan_hash* old_chans = this->chanlist;
 269
 270         this->Users->clientlist = new user_hash();
 271         this->Users->uuidlist = new user_hash();
 272         this->chanlist = new chan_hash();
 273
 274         for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)
 275                 this->Users->clientlist->insert(*n);
 276
 277         delete old_users;
 278
 279         for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++)
 280                 this->Users->uuidlist->insert(*n);
 281
 282         delete old_uuid;
 283
 284         for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)
 285                 this->chanlist->insert(*n);
 286
 287         delete old_chans;
 288 }
 289
 290 void InspIRCd::SetSignals()
 291 {
 292 #ifndef WIN32
 293         signal(SIGALRM, SIG_IGN);
 294         signal(SIGHUP, InspIRCd::SetSignal);
 295         signal(SIGPIPE, SIG_IGN);
 296         signal(SIGCHLD, SIG_IGN);
 297 #endif
 298         signal(SIGTERM, InspIRCd::SetSignal);
 299 }
 300
 301 void InspIRCd::QuickExit(int status)
 302 {
 303         exit(0);
 304 }
 305
 306 bool InspIRCd::DaemonSeed()
 307 {
 308 #ifdef WINDOWS
 309         printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());
 310         return true;
 311 #else
 312         signal(SIGTERM, InspIRCd::QuickExit);
 313
 314         int childpid;
 315         if ((childpid = fork ()) < 0)
 316                 return false;
 317         else if (childpid > 0)
 318         {
 319                 /* We wait here for the child process to kill us,
 320                  * so that the shell prompt doesnt come back over
 321                  * the output.
 322                  * Sending a kill with a signal of 0 just checks
 323                  * if the child pid is still around. If theyre not,
 324                  * they threw an error and we should give up.
 325                  */
 326                 while (kill(childpid, 0) != -1)
 327                         sleep(1);
 328                 exit(0);
 329         }
 330         setsid ();
 331         umask (007);
 332         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 333
 334         signal(SIGTERM, InspIRCd::SetSignal);
 335
 336         rlimit rl;
 337         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 338         {
 339                 this->Logs->Log("STARTUP",DEFAULT,"Failed to getrlimit()!");
 340                 return false;
 341         }
 342         else
 343         {
 344                 rl.rlim_cur = rl.rlim_max;
 345                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 346                         this->Logs->Log("STARTUP",DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 347         }
 348
 349         return true;
 350 #endif
 351 }
 352
 353 void InspIRCd::WritePID(const std::string &filename)
 354 {
 355         std::string fname = (filename.empty() ? "inspircd.pid" : filename);
 356         std::replace(fname.begin(), fname.end(), '\\', '/');
 357         if ((fname[0] != '/') && (!Config->StartsWithWindowsDriveLetter(filename)))
 358         {
 359                 std::string::size_type pos;
 360                 std::string confpath = this->ConfigFileName;
 361                 if ((pos = confpath.rfind("/")) != std::string::npos)
 362                 {
 363                         /* Leaves us with just the path */
 364                         fname = confpath.substr(0, pos) + std::string("/") + fname;
 365                 }
 366         }
 367         std::ofstream outfile(fname.c_str());
 368         if (outfile.is_open())
 369         {
 370                 outfile << getpid();
 371                 outfile.close();
 372         }
 373         else
 374         {
 375                 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
 376                 this->Logs->Log("STARTUP",DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
 377                 Exit(EXIT_STATUS_PID);
 378         }
 379 }
 380
 381 InspIRCd::InspIRCd(int argc, char** argv)
 382         : GlobalCulls(this),
 383
 384          /* Functor initialisation. Note that the ordering here is very important.
 385           *
 386           * THIS MUST MATCH ORDER OF DECLARATION OF THE HandleWhateverFunc classes
 387           * within class InspIRCd.
 388           */
 389          HandleProcessUser(this),
 390          HandleIsNick(this),
 391          HandleIsIdent(this),
 392          HandleFindDescriptor(this),
 393          HandleFloodQuitUser(this),
 394          HandleIsChannel(this),
 395          HandleIsSID(this),
 396          HandleRehash(this),
 397
 398          /* Functor pointer initialisation. Must match the order of the list above
 399           *
 400           * THIS MUST MATCH THE ORDER OF DECLARATION OF THE FUNCTORS, e.g. the methods
 401           * themselves within the class.
 402           */
 403          ProcessUser(&HandleProcessUser),
 404          IsChannel(&HandleIsChannel),
 405          IsSID(&HandleIsSID),
 406          Rehash(&HandleRehash),
 407          IsNick(&HandleIsNick),
 408          IsIdent(&HandleIsIdent),
 409          FindDescriptor(&HandleFindDescriptor),
 410          FloodQuitUser(&HandleFloodQuitUser)
 411
 412 {
 413 #ifdef WIN32
 414         // Strict, frequent checking of memory on debug builds
 415         _CrtSetDbgFlag ( _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
 416
 417         // Avoid erroneous frees on early exit
 418         WindowsIPC = 0;
 419 #endif
 420         int found_ports = 0;
 421         FailedPortList pl;
 422         int do_version = 0, do_nofork = 0, do_debug = 0,
 423             do_nolog = 0, do_root = 0, do_testsuite = 0;    /* flag variables */
 424         char c = 0;
 425
 426         // Initialize so that if we exit before proper initialization they're not deleted
 427         this->Logs = 0;
 428         this->Threads = 0;
 429         this->PI = 0;
 430         this->Users = 0;
 431         this->chanlist = 0;
 432         this->Config = 0;
 433         this->SNO = 0;
 434         this->BanCache = 0;
 435         this->Modules = 0;
 436         this->stats = 0;
 437         this->Timers = 0;
 438         this->Parser = 0;
 439         this->XLines = 0;
 440         this->Modes = 0;
 441         this->Res = 0;
 442
 443
 444         memset(&server, 0, sizeof(server));
 445         memset(&client, 0, sizeof(client));
 446
 447         // This must be created first, so other parts of Insp can use it while starting up
 448         this->Logs = new LogManager(this);
 449
 450         SocketEngineFactory* SEF = new SocketEngineFactory();
 451         SE = SEF->Create(this);
 452         delete SEF;
 453
 454         ThreadEngineFactory* tef = new ThreadEngineFactory();
 455         this->Threads = tef->Create(this);
 456         delete tef;
 457
 458         /* Default implementation does nothing */
 459         this->PI = new ProtocolInterface(this);
 460
 461         this->s_signal = 0;
 462
 463         // Create base manager classes early, so nothing breaks
 464         this->Users = new UserManager(this);
 465
 466         this->Users->unregistered_count = 0;
 467
 468         this->Users->clientlist = new user_hash();
 469         this->Users->uuidlist = new user_hash();
 470         this->chanlist = new chan_hash();
 471
 472         this->Config = new ServerConfig(this);
 473         this->SNO = new SnomaskManager(this);
 474         this->BanCache = new BanCacheManager(this);
 475         this->Modules = new ModuleManager(this);
 476         this->stats = new serverstats();
 477         this->Timers = new TimerManager(this);
 478         this->Parser = new CommandParser(this);
 479         this->XLines = new XLineManager(this);
 480
 481         this->Config->argv = argv;
 482         this->Config->argc = argc;
 483
 484         if (chdir(Config->GetFullProgDir().c_str()))
 485         {
 486                 printf("Unable to change to my directory: %s\nAborted.", strerror(errno));
 487                 exit(0);
 488         }
 489
 490         this->Config->opertypes.clear();
 491         this->Config->operclass.clear();
 492
 493         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 494         srand(this->TIME);
 495
 496         *this->LogFileName = 0;
 497         strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);
 498
 499         struct option longopts[] =
 500         {
 501                 { "nofork",     no_argument,            &do_nofork,     1       },
 502                 { "logfile",    required_argument,      NULL,           'f'     },
 503                 { "config",     required_argument,      NULL,           'c'     },
 504                 { "debug",      no_argument,            &do_debug,      1       },
 505                 { "nolog",      no_argument,            &do_nolog,      1       },
 506                 { "runasroot",  no_argument,            &do_root,       1       },
 507                 { "version",    no_argument,            &do_version,    1       },
 508                 { "testsuite",  no_argument,            &do_testsuite,  1       },
 509                 { 0, 0, 0, 0 }
 510         };
 511
 512         while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1)
 513         {
 514                 switch (c)
 515                 {
 516                         case 'f':
 517                                 /* Log filename was set */
 518                                 strlcpy(LogFileName, optarg, MAXBUF);
 519                         break;
 520                         case 'c':
 521                                 /* Config filename was set */
 522                                 strlcpy(ConfigFileName, optarg, MAXBUF);
 523                         break;
 524                         case 0:
 525                                 /* getopt_long_only() set an int variable, just keep going */
 526                         break;
 527                         default:
 528                                 /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */
 529                                 printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>]\n\
 530                                                   [--runasroot] [--version] [--config <config>] [--testsuite]\n", argv[0]);
 531                                 Exit(EXIT_STATUS_ARGV);
 532                         break;
 533                 }
 534         }
 535
 536         if (do_testsuite)
 537                 do_nofork = do_debug = true;
 538
 539         if (do_version)
 540         {
 541                 printf("\n%s r%s\n", VERSION, REVISION);
 542                 Exit(EXIT_STATUS_NOERROR);
 543         }
 544
 545 #ifdef WIN32
 546
 547         // Handle forking
 548         if(!do_nofork)
 549         {
 550                 DWORD ExitCode = WindowsForkStart(this);
 551                 if(ExitCode)
 552                         exit(ExitCode);
 553         }
 554
 555         // Set up winsock
 556         WSADATA wsadata;
 557         WSAStartup(MAKEWORD(2,0), &wsadata);
 558         ChangeWindowsSpecificPointers(this);
 559 #endif
 560         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 561
 562         /* Set the finished argument values */
 563         Config->nofork = do_nofork;
 564         Config->forcedebug = do_debug;
 565         Config->writelog = !do_nolog;
 566         Config->TestSuite = do_testsuite;
 567
 568         if (!this->OpenLog(argv, argc))
 569         {
 570                 printf("ERROR: Could not open logfile %s: %s\n\n", Config->logpath.c_str(), strerror(errno));
 571                 Exit(EXIT_STATUS_LOG);
 572         }
 573
 574         if (!ServerConfig::FileExists(this->ConfigFileName))
 575         {
 576                 printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName);
 577                 this->Logs->Log("STARTUP",DEFAULT,"Unable to open config file %s", this->ConfigFileName);
 578                 Exit(EXIT_STATUS_CONFIG);
 579         }
 580
 581         printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
 582         printf_c("(C) InspIRCd Development Team.\033[0m\n\n");
 583         printf_c("Developers:\n");
 584         printf_c("\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special\n");
 585         printf_c("\t\033[1;32mpippijn, peavey, aquanight, fez\033[0m\n\n");
 586         printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
 587
 588         Config->ClearStack();
 589
 590         this->Modes = new ModeParser(this);
 591
 592         if (!do_root)
 593                 this->CheckRoot();
 594         else
 595         {
 596                 printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");
 597                 printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");
 598                 printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");
 599                 printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");
 600                 printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");
 601                 printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");
 602                 printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");
 603                 printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");
 604                 sleep(20);
 605         }
 606
 607         this->SetSignals();
 608
 609         if (!Config->nofork)
 610         {
 611                 if (!this->DaemonSeed())
 612                 {
 613                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 614                         Logs->Log("STARTUP", DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
 615                         Exit(EXIT_STATUS_FORK);
 616                 }
 617         }
 618
 619         SE->RecoverFromFork();
 620
 621         /* During startup we don't actually initialize this
 622          * in the thread engine.
 623          */
 624         this->ConfigThread = new ConfigReaderThread(this, true, NULL);
 625         ConfigThread->Run();
 626         delete ConfigThread;
 627         this->ConfigThread = NULL;
 628
 629         this->Res = new DNS(this);
 630
 631         this->AddServerName(Config->ServerName);
 632
 633         /*
 634          * Initialise SID/UID.
 635          * For an explanation as to exactly how this works, and why it works this way, see GetUID().
 636          *   -- w00t
 637          */
 638         if (!*Config->sid)
 639         {
 640                 // Generate one
 641                 size_t sid = 0;
 642
 643                 for (const char* x = Config->ServerName; *x; ++x)
 644                         sid = 5 * sid + *x;
 645                 for (const char* y = Config->ServerDesc; *y; ++y)
 646                         sid = 5 * sid + *y;
 647                 sid = sid % 999;
 648
 649                 Config->sid[0] = (char)(sid / 100 + 48);
 650                 Config->sid[1] = (char)(((sid / 10) % 10) + 48);
 651                 Config->sid[2] = (char)(sid % 10 + 48);
 652                 Config->sid[3] = '\0';
 653         }
 654
 655         /* set up fake client again this time with the correct uid */
 656         this->FakeClient = new User(this, "#INVALID");
 657         this->FakeClient->SetFd(FD_MAGIC_NUMBER);
 658
 659         // Get XLine to do it's thing.
 660         this->XLines->CheckELines();
 661         this->XLines->ApplyLines();
 662
 663         CheckDie();
 664         int bounditems = BindPorts(true, found_ports, pl);
 665
 666         printf("\n");
 667
 668         this->Modules->LoadAll();
 669
 670         /* Just in case no modules were loaded - fix for bug #101 */
 671         this->BuildISupport();
 672         InitializeDisabledCommands(Config->DisabledCommands, this);
 673
 674         if (Config->ports.size() != (unsigned int)found_ports)
 675         {
 676                 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports);
 677                 printf("The following port(s) failed to bind:\n");
 678                 printf("Hint: Try using a public IP instead of blank or *\n\n");
 679                 int j = 1;
 680                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 681                 {
 682                         printf("%d.\tAddress: %s\tReason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
 683                 }
 684         }
 685
 686         printf("\nInspIRCd is now running as '%s'[%s] with %d max open sockets\n", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 687
 688 #ifndef WINDOWS
 689         if (!Config->nofork)
 690         {
 691                 if (kill(getppid(), SIGTERM) == -1)
 692                 {
 693                         printf("Error killing parent process: %s\n",strerror(errno));
 694                         Logs->Log("STARTUP", DEFAULT, "Error killing parent process: %s",strerror(errno));
 695                 }
 696         }
 697
 698         if (isatty(0) && isatty(1) && isatty(2))
 699         {
 700                 /* We didn't start from a TTY, we must have started from a background process -
 701                  * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
 702                  * close stdin/stdout
 703                  */
 704                 if ((!do_nofork) && (!do_testsuite))
 705                 {
 706                         fclose(stdin);
 707                         fclose(stderr);
 708                         fclose(stdout);
 709                 }
 710                 else
 711                 {
 712                         Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
 713                 }
 714         }
 715 #else
 716         WindowsIPC = new IPC(this);
 717         if(!Config->nofork)
 718         {
 719                 WindowsForkKillOwner(this);
 720                 FreeConsole();
 721         }
 722 #endif
 723
 724         Logs->Log("STARTUP", DEFAULT, "Startup complete as '%s'[%s], %d max open sockets", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 725
 726         this->WritePID(Config->PID);
 727 }
 728
 729 int InspIRCd::Run()
 730 {
 731         /* See if we're supposed to be running the test suite rather than entering the mainloop */
 732         if (Config->TestSuite)
 733         {
 734                 TestSuite* ts = new TestSuite(this);
 735                 delete ts;
 736                 Exit(0);
 737         }
 738
 739         while (true)
 740         {
 741 #ifndef WIN32
 742                 static rusage ru;
 743 #else
 744                 static time_t uptime;
 745                 static struct tm * stime;
 746                 static char window_title[100];
 747 #endif
 748
 749                 /* Check if there is a config thread which has finished executing but has not yet been freed */
 750                 if (this->ConfigThread && this->ConfigThread->GetExitFlag())
 751                 {
 752                         /* Rehash has completed */
 753                         this->Logs->Log("CONFIG",DEBUG,"Detected ConfigThread exiting, tidying up...");
 754
 755                         /* IMPORTANT: This delete may hang if you fuck up your thread syncronization.
 756                          * It will hang waiting for the ConfigThread to 'join' to avoid race conditons,
 757                          * until the other thread is completed.
 758                          */
 759                         delete ConfigThread;
 760                         ConfigThread = NULL;
 761
 762                         /* These are currently not known to be threadsafe, so they are executed outside
 763                          * of the thread. It would be pretty simple to move them to the thread Run method
 764                          * once they are known threadsafe with all the correct mutexes in place.
 765                          *
 766                          * XXX: The order of these is IMPORTANT, do not reorder them without testing
 767                          * thoroughly!!!
 768                          */
 769                         this->XLines->CheckELines();
 770                         this->XLines->ApplyLines();
 771                         this->Res->Rehash();
 772                         this->ResetMaxBans();
 773                         InitializeDisabledCommands(Config->DisabledCommands, this);
 774                         FOREACH_MOD_I(this, I_OnRehash, OnRehash(Config->RehashUser, Config->RehashParameter));
 775                         this->BuildISupport();
 776                 }
 777
 778                 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 779                  * Once per loop iteration is pleanty.
 780                  */
 781                 OLDTIME = TIME;
 782                 TIME = time(NULL);
 783
 784                 /* Run background module timers every few seconds
 785                  * (the docs say modules shouldnt rely on accurate
 786                  * timing using this event, so we dont have to
 787                  * time this exactly).
 788                  */
 789                 if (TIME != OLDTIME)
 790                 {
 791                         /* Allow a buffer of two seconds drift on this so that ntpdate etc dont harass admins */
 792                         if (TIME < OLDTIME - 2)
 793                         {
 794                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %lu secs.", (unsigned long)OLDTIME-TIME);
 795                         }
 796                         else if (TIME > OLDTIME + 2)
 797                         {
 798                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is jumping FORWARDS! Clock skipped %lu secs.", (unsigned long)TIME - OLDTIME);
 799                         }
 800
 801                         if ((TIME % 3600) == 0)
 802                         {
 803                                 this->RehashUsersAndChans();
 804                                 FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
 805                         }
 806
 807                         Timers->TickTimers(TIME);
 808                         this->DoBackgroundUserStuff();
 809
 810                         if ((TIME % 5) == 0)
 811                         {
 812                                 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 813                                 SNO->FlushSnotices();
 814                         }
 815 #ifndef WIN32
 816                         /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */
 817                         if (!getrusage(RUSAGE_SELF, &ru))
 818                         {
 819                                 gettimeofday(&this->stats->LastSampled, NULL);
 820                                 this->stats->LastCPU = ru.ru_utime;
 821                         }
 822 #else
 823                         WindowsIPC->Check();
 824 #endif
 825                 }
 826
 827                 /* Call the socket engine to wait on the active
 828                  * file descriptors. The socket engine has everything's
 829                  * descriptors in its list... dns, modules, users,
 830                  * servers... so its nice and easy, just one call.
 831                  * This will cause any read or write events to be
 832                  * dispatched to their handlers.
 833                  */
 834                 this->SE->DispatchEvents();
 835
 836                 /* if any users were quit, take them out */
 837                 this->GlobalCulls.Apply();
 838
 839                 /* If any inspsockets closed, remove them */
 840                 this->BufferedSocketCull();
 841
 842                 if (this->s_signal)
 843                 {
 844                         this->SignalHandler(s_signal);
 845                         this->s_signal = 0;
 846                 }
 847         }
 848
 849         return 0;
 850 }
 851
 852 void InspIRCd::BufferedSocketCull()
 853 {
 854         for (std::map<BufferedSocket*,BufferedSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)
 855         {
 856                 this->Logs->Log("MISC",DEBUG,"Cull socket");
 857                 SE->DelFd(x->second);
 858                 x->second->Close();
 859                 delete x->second;
 860         }
 861         SocketCull.clear();
 862 }
 863
 864 /**********************************************************************************/
 865
 866 /**
 867  * An ircd in five lines! bwahahaha. ahahahahaha. ahahah *cough*.
 868  */
 869
 870 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 871  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 872  * registration timeout maximum seconds)
 873  */
 874 bool InspIRCd::AllModulesReportReady(User* user)
 875 {
 876         for (EventHandlerIter i = Modules->EventHandlers[I_OnCheckReady].begin(); i != Modules->EventHandlers[I_OnCheckReady].end(); ++i)
 877         {
 878                 if (!(*i)->OnCheckReady(user))
 879                         return false;
 880         }
 881         return true;
 882 }
 883
 884 time_t InspIRCd::Time()
 885 {
 886         return TIME;
 887 }
 888
 889 void InspIRCd::SetSignal(int signal)
 890 {
 891         *mysig = signal;
 892 }
 893
 894 /* On posix systems, the flow of the program starts right here, with
 895  * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
 896  * defines smain() and the real main() is in the service code under
 897  * win32service.cpp. This allows the service control manager to control
 898  * the process where we are running as a windows service.
 899  */
 900 ENTRYPOINT
 901 {
 902         SI = new InspIRCd(argc, argv);
 903         mysig = &SI->s_signal;
 904         SI->Run();
 905         delete SI;
 906         return 0;
 907 }