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