src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/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         #include <pwd.h> // setuid
  31         #include <grp.h> // setgid
  32 #endif
  33
  34 #include <fstream>
  35 #include "xline.h"
  36 #include "bancache.h"
  37 #include "socketengine.h"
  38 #include "inspircd_se_config.h"
  39 #include "socket.h"
  40 #include "command_parse.h"
  41 #include "exitcodes.h"
  42 #include "caller.h"
  43 #include "testsuite.h"
  44
  45 InspIRCd* SI = NULL;
  46 int* mysig = NULL;
  47
  48 /** Seperate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
  49  * if it must.
  50  *
  51  * This is provided as a pointer so that modules can change it to their custom mapping tables,
  52  * e.g. for national character support.
  53  */
  54 unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
  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                 "Bad command handler loaded", /* 16 */
  79                 "RegisterServiceCtrlHandler failed", /* 17 */
  80                 "UpdateSCMStatus failed", /* 18 */
  81                 "CreateEvent failed" /* 19 */
  82 };
  83
  84 template<typename T> static void DeleteZero(T* n)
  85 {
  86         if (n != NULL)
  87         {
  88                 delete n;
  89                 n = NULL;
  90         }
  91 }
  92
  93 void InspIRCd::Cleanup()
  94 {
  95         if (Config)
  96         {
  97                 for (unsigned int i = 0; i < Config->ports.size(); i++)
  98                 {
  99                         /* This calls the constructor and closes the listening socket */
 100                         delete Config->ports[i];
 101                 }
 102
 103                 Config->ports.clear();
 104         }
 105
 106         /* Close all client sockets, or the new process inherits them */
 107         for (std::vector<User*>::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++)
 108         {
 109                 this->Users->QuitUser((*i), "Server shutdown");
 110                 (*i)->CloseSocket();
 111         }
 112
 113         /* We do this more than once, so that any service providers get a
 114          * chance to be unhooked by the modules using them, but then get
 115          * a chance to be removed themsleves.
 116          *
 117          * XXX there may be a better way to do this with 1.2
 118          */
 119         for (int tries = 0; tries < 3; tries++)
 120         {
 121                 std::vector<std::string> module_names = Modules->GetAllModuleNames(0);
 122                 for (std::vector<std::string>::iterator k = module_names.begin(); k != module_names.end(); ++k)
 123                 {
 124                         /* Unload all modules, so they get a chance to clean up their listeners */
 125                         this->Modules->Unload(k->c_str());
 126                 }
 127         }
 128         /* Remove core commands */
 129         Parser->RemoveCommands("<core>");
 130
 131         /* Cleanup Server Names */
 132         for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)
 133                 delete (*itr);
 134
 135         /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
 136         /* Must be deleted before modes as it decrements modelines */
 137         DeleteZero(this->Users);
 138         DeleteZero(this->Modes);
 139         DeleteZero(this->XLines);
 140         DeleteZero(this->Parser);
 141         DeleteZero(this->stats);
 142         DeleteZero(this->Modules);
 143         DeleteZero(this->BanCache);
 144         DeleteZero(this->SNO);
 145         DeleteZero(this->Config);
 146         DeleteZero(this->Res);
 147         DeleteZero(this->chanlist);
 148         DeleteZero(this->PI);
 149         DeleteZero(this->Threads);
 150         DeleteZero(this->Timers);
 151         /* Close logging */
 152         this->Logs->CloseLogs();
 153         DeleteZero(this->Logs);
 154
 155         delete RehashFinishMutex;
 156 }
 157
 158 void InspIRCd::Restart(const std::string &reason)
 159 {
 160         /* SendError flushes each client's queue,
 161          * regardless of writeability state
 162          */
 163         this->SendError(reason);
 164
 165         /* Figure out our filename (if theyve renamed it, we're boned) */
 166         std::string me;
 167
 168 #ifdef WINDOWS
 169         char module[MAX_PATH];
 170         if (GetModuleFileName(NULL, module, MAX_PATH))
 171                 me = module;
 172 #else
 173         me = Config->MyDir + "/inspircd";
 174 #endif
 175
 176         char** argv = Config->argv;
 177
 178         this->Cleanup();
 179
 180         if (execv(me.c_str(), argv) == -1)
 181         {
 182                 /* Will raise a SIGABRT if not trapped */
 183                 throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));
 184         }
 185 }
 186
 187 void InspIRCd::ResetMaxBans()
 188 {
 189         for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)
 190                 i->second->ResetMaxBans();
 191 }
 192
 193 /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')
 194  * we must occasionally rehash the hash (yes really).
 195  * We do this by copying the entries from the old hash to a new hash, causing all
 196  * empty buckets to be weeded out of the hash. We dont do this on a timer, as its
 197  * very expensive, so instead we do it when the user types /REHASH and expects a
 198  * short delay anyway.
 199  */
 200 void InspIRCd::RehashUsersAndChans()
 201 {
 202         user_hash* old_users = this->Users->clientlist;
 203         user_hash* old_uuid  = this->Users->uuidlist;
 204         chan_hash* old_chans = this->chanlist;
 205
 206         this->Users->clientlist = new user_hash();
 207         this->Users->uuidlist = new user_hash();
 208         this->chanlist = new chan_hash();
 209
 210         for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)
 211                 this->Users->clientlist->insert(*n);
 212
 213         delete old_users;
 214
 215         for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++)
 216                 this->Users->uuidlist->insert(*n);
 217
 218         delete old_uuid;
 219
 220         for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)
 221                 this->chanlist->insert(*n);
 222
 223         delete old_chans;
 224 }
 225
 226 void InspIRCd::SetSignals()
 227 {
 228 #ifndef WIN32
 229         signal(SIGALRM, SIG_IGN);
 230         signal(SIGHUP, InspIRCd::SetSignal);
 231         signal(SIGPIPE, SIG_IGN);
 232         signal(SIGCHLD, SIG_IGN);
 233         /* We want E2BIG not a signal! */
 234         signal(SIGXFSZ, SIG_IGN);
 235 #endif
 236         signal(SIGTERM, InspIRCd::SetSignal);
 237 }
 238
 239 void InspIRCd::QuickExit(int status)
 240 {
 241         exit(0);
 242 }
 243
 244 bool InspIRCd::DaemonSeed()
 245 {
 246 #ifdef WINDOWS
 247         printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());
 248         return true;
 249 #else
 250         signal(SIGTERM, InspIRCd::QuickExit);
 251
 252         int childpid;
 253         if ((childpid = fork ()) < 0)
 254                 return false;
 255         else if (childpid > 0)
 256         {
 257                 /* We wait here for the child process to kill us,
 258                  * so that the shell prompt doesnt come back over
 259                  * the output.
 260                  * Sending a kill with a signal of 0 just checks
 261                  * if the child pid is still around. If theyre not,
 262                  * they threw an error and we should give up.
 263                  */
 264                 while (kill(childpid, 0) != -1)
 265                         sleep(1);
 266                 exit(0);
 267         }
 268         setsid ();
 269         umask (007);
 270         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 271
 272         signal(SIGTERM, InspIRCd::SetSignal);
 273
 274         rlimit rl;
 275         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 276         {
 277                 this->Logs->Log("STARTUP",DEFAULT,"Failed to getrlimit()!");
 278                 return false;
 279         }
 280         else
 281         {
 282                 rl.rlim_cur = rl.rlim_max;
 283                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 284                         this->Logs->Log("STARTUP",DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 285         }
 286
 287         return true;
 288 #endif
 289 }
 290
 291 void InspIRCd::WritePID(const std::string &filename)
 292 {
 293         std::string fname = (filename.empty() ? "inspircd.pid" : filename);
 294         std::replace(fname.begin(), fname.end(), '\\', '/');
 295         if ((fname[0] != '/') && (!Config->StartsWithWindowsDriveLetter(filename)))
 296         {
 297                 std::string::size_type pos;
 298                 std::string confpath = this->ConfigFileName;
 299                 if ((pos = confpath.rfind("/")) != std::string::npos)
 300                 {
 301                         /* Leaves us with just the path */
 302                         fname = confpath.substr(0, pos) + std::string("/") + fname;
 303                 }
 304         }
 305         std::ofstream outfile(fname.c_str());
 306         if (outfile.is_open())
 307         {
 308                 outfile << getpid();
 309                 outfile.close();
 310         }
 311         else
 312         {
 313                 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
 314                 this->Logs->Log("STARTUP",DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
 315                 Exit(EXIT_STATUS_PID);
 316         }
 317 }
 318
 319 InspIRCd::InspIRCd(int argc, char** argv)
 320         : GlobalCulls(this),
 321
 322          /* Functor initialisation. Note that the ordering here is very important.
 323           *
 324           * THIS MUST MATCH ORDER OF DECLARATION OF THE HandleWhateverFunc classes
 325           * within class InspIRCd.
 326           */
 327          HandleProcessUser(this),
 328          HandleIsNick(this),
 329          HandleIsIdent(this),
 330          HandleFindDescriptor(this),
 331          HandleFloodQuitUser(this),
 332          HandleIsChannel(this),
 333          HandleIsSID(this),
 334          HandleRehash(this),
 335
 336          /* Functor pointer initialisation. Must match the order of the list above
 337           *
 338           * THIS MUST MATCH THE ORDER OF DECLARATION OF THE FUNCTORS, e.g. the methods
 339           * themselves within the class.
 340           */
 341          ProcessUser(&HandleProcessUser),
 342          IsChannel(&HandleIsChannel),
 343          IsSID(&HandleIsSID),
 344          Rehash(&HandleRehash),
 345          IsNick(&HandleIsNick),
 346          IsIdent(&HandleIsIdent),
 347          FindDescriptor(&HandleFindDescriptor),
 348          FloodQuitUser(&HandleFloodQuitUser)
 349
 350 {
 351 #ifdef WIN32
 352         // Strict, frequent checking of memory on debug builds
 353         _CrtSetDbgFlag ( _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
 354
 355         // Avoid erroneous frees on early exit
 356         WindowsIPC = 0;
 357 #endif
 358         int found_ports = 0;
 359         FailedPortList pl;
 360         int do_version = 0, do_nofork = 0, do_debug = 0,
 361             do_nolog = 0, do_root = 0, do_testsuite = 0;    /* flag variables */
 362         char c = 0;
 363
 364         // Initialize so that if we exit before proper initialization they're not deleted
 365         this->Logs = 0;
 366         this->Threads = 0;
 367         this->PI = 0;
 368         this->Users = 0;
 369         this->chanlist = 0;
 370         this->Config = 0;
 371         this->SNO = 0;
 372         this->BanCache = 0;
 373         this->Modules = 0;
 374         this->stats = 0;
 375         this->Timers = 0;
 376         this->Parser = 0;
 377         this->XLines = 0;
 378         this->Modes = 0;
 379         this->Res = 0;
 380
 381         // Initialise TIME
 382         this->TIME = time(NULL);
 383
 384         memset(&server, 0, sizeof(server));
 385         memset(&client, 0, sizeof(client));
 386
 387         // This must be created first, so other parts of Insp can use it while starting up
 388         this->Logs = new LogManager(this);
 389
 390         SocketEngineFactory* SEF = new SocketEngineFactory();
 391         SE = SEF->Create(this);
 392         delete SEF;
 393
 394         ThreadEngineFactory* tef = new ThreadEngineFactory();
 395         this->Threads = tef->Create(this);
 396         delete tef;
 397         this->Mutexes = new MutexFactory(this);
 398
 399         /* Default implementation does nothing */
 400         this->PI = new ProtocolInterface(this);
 401
 402         this->s_signal = 0;
 403
 404         // Create base manager classes early, so nothing breaks
 405         this->Users = new UserManager(this);
 406
 407         this->Users->unregistered_count = 0;
 408
 409         this->Users->clientlist = new user_hash();
 410         this->Users->uuidlist = new user_hash();
 411         this->chanlist = new chan_hash();
 412
 413         this->Config = new ServerConfig(this);
 414         this->SNO = new SnomaskManager(this);
 415         this->BanCache = new BanCacheManager(this);
 416         this->Modules = new ModuleManager(this);
 417         this->stats = new serverstats();
 418         this->Timers = new TimerManager(this);
 419         this->Parser = new CommandParser(this);
 420         this->XLines = new XLineManager(this);
 421
 422         this->Config->argv = argv;
 423         this->Config->argc = argc;
 424
 425         if (chdir(Config->GetFullProgDir().c_str()))
 426         {
 427                 printf("Unable to change to my directory: %s\nAborted.", strerror(errno));
 428                 exit(0);
 429         }
 430
 431         this->Config->opertypes.clear();
 432         this->Config->operclass.clear();
 433
 434         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 435         srand(this->TIME);
 436
 437         *this->LogFileName = 0;
 438         strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);
 439
 440         struct option longopts[] =
 441         {
 442                 { "nofork",     no_argument,            &do_nofork,     1       },
 443                 { "logfile",    required_argument,      NULL,           'f'     },
 444                 { "config",     required_argument,      NULL,           'c'     },
 445                 { "debug",      no_argument,            &do_debug,      1       },
 446                 { "nolog",      no_argument,            &do_nolog,      1       },
 447                 { "runasroot",  no_argument,            &do_root,       1       },
 448                 { "version",    no_argument,            &do_version,    1       },
 449                 { "testsuite",  no_argument,            &do_testsuite,  1       },
 450                 { 0, 0, 0, 0 }
 451         };
 452
 453         while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1)
 454         {
 455                 switch (c)
 456                 {
 457                         case 'f':
 458                                 /* Log filename was set */
 459                                 strlcpy(LogFileName, optarg, MAXBUF);
 460                         break;
 461                         case 'c':
 462                                 /* Config filename was set */
 463                                 strlcpy(ConfigFileName, optarg, MAXBUF);
 464                         break;
 465                         case 0:
 466                                 /* getopt_long_only() set an int variable, just keep going */
 467                         break;
 468                         default:
 469                                 /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */
 470                                 printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>]\n\
 471                                                   [--runasroot] [--version] [--config <config>] [--testsuite]\n", argv[0]);
 472                                 Exit(EXIT_STATUS_ARGV);
 473                         break;
 474                 }
 475         }
 476
 477         if (do_testsuite)
 478                 do_nofork = do_debug = true;
 479
 480         if (do_version)
 481         {
 482                 printf("\n%s r%s\n", VERSION, REVISION);
 483                 Exit(EXIT_STATUS_NOERROR);
 484         }
 485
 486 #ifdef WIN32
 487
 488         // Handle forking
 489         if(!do_nofork)
 490         {
 491                 DWORD ExitCode = WindowsForkStart(this);
 492                 if(ExitCode)
 493                         exit(ExitCode);
 494         }
 495
 496         // Set up winsock
 497         WSADATA wsadata;
 498         WSAStartup(MAKEWORD(2,0), &wsadata);
 499         ChangeWindowsSpecificPointers(this);
 500 #endif
 501         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 502
 503         /* Set the finished argument values */
 504         Config->nofork = do_nofork;
 505         Config->forcedebug = do_debug;
 506         Config->writelog = !do_nolog;
 507         Config->TestSuite = do_testsuite;
 508
 509         if (!this->OpenLog(argv, argc))
 510         {
 511                 printf("ERROR: Could not open logfile %s: %s\n\n", Config->logpath.c_str(), strerror(errno));
 512                 Exit(EXIT_STATUS_LOG);
 513         }
 514
 515         if (!ServerConfig::FileExists(this->ConfigFileName))
 516         {
 517 #ifdef WIN32
 518                 /* Windows can (and defaults to) hide file extensions, so let's play a bit nice for windows users. */
 519                 std::string txtconf = this->ConfigFileName;
 520                 txtconf.append(".txt");
 521
 522                 if (ServerConfig::FileExists(txtconf.c_str()))
 523                 {
 524                         strlcat(this->ConfigFileName, ".txt", MAXBUF);
 525                 }
 526                 else
 527 #endif
 528                 {
 529                         printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName);
 530                         this->Logs->Log("STARTUP",DEFAULT,"Unable to open config file %s", this->ConfigFileName);
 531                         Exit(EXIT_STATUS_CONFIG);
 532                 }
 533         }
 534
 535         printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
 536         printf_c("(C) InspIRCd Development Team.\033[0m\n\n");
 537         printf_c("Developers:\n");
 538         printf_c("\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special\n");
 539         printf_c("\t\033[1;32mpeavey, aquanight, psychon, dz, danieldg\033[0m\n\n");
 540         printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
 541
 542         Config->ClearStack();
 543
 544         this->Modes = new ModeParser(this);
 545
 546         if (!do_root)
 547                 this->CheckRoot();
 548         else
 549         {
 550                 printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");
 551                 printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");
 552                 printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");
 553                 printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");
 554                 printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");
 555                 printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");
 556                 printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");
 557                 printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");
 558                 sleep(20);
 559         }
 560
 561         this->SetSignals();
 562
 563         if (!Config->nofork)
 564         {
 565                 if (!this->DaemonSeed())
 566                 {
 567                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 568                         Logs->Log("STARTUP", DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
 569                         Exit(EXIT_STATUS_FORK);
 570                 }
 571         }
 572
 573         SE->RecoverFromFork();
 574
 575         /* During startup we don't actually initialize this
 576          * in the thread engine.
 577          */
 578         this->ConfigThread = new ConfigReaderThread(this, true, "");
 579         ConfigThread->Run();
 580         delete ConfigThread;
 581         this->ConfigThread = NULL;
 582         /* Switch over logfiles */
 583         Logs->OpenFileLogs();
 584
 585         /** Note: This is safe, the method checks for user == NULL */
 586         this->Parser->SetupCommandTable();
 587
 588         this->Res = new DNS(this);
 589
 590         this->AddServerName(Config->ServerName);
 591
 592         /*
 593          * Initialise SID/UID.
 594          * For an explanation as to exactly how this works, and why it works this way, see GetUID().
 595          *   -- w00t
 596          */
 597         if (!*Config->sid)
 598         {
 599                 // Generate one
 600                 size_t sid = 0;
 601
 602                 for (const char* x = Config->ServerName; *x; ++x)
 603                         sid = 5 * sid + *x;
 604                 for (const char* y = Config->ServerDesc; *y; ++y)
 605                         sid = 5 * sid + *y;
 606                 sid = sid % 999;
 607
 608                 Config->sid[0] = (char)(sid / 100 + 48);
 609                 Config->sid[1] = (char)(((sid / 10) % 10) + 48);
 610                 Config->sid[2] = (char)(sid % 10 + 48);
 611                 Config->sid[3] = '\0';
 612         }
 613
 614         /* set up fake client again this time with the correct uid */
 615         this->FakeClient = new User(this, "#INVALID");
 616         this->FakeClient->SetFd(FD_MAGIC_NUMBER);
 617
 618         // Get XLine to do it's thing.
 619         this->XLines->CheckELines();
 620         this->XLines->ApplyLines();
 621
 622         CheckDie();
 623         int bounditems = BindPorts(true, found_ports, pl);
 624
 625         printf("\n");
 626
 627         this->Modules->LoadAll();
 628
 629         /* Just in case no modules were loaded - fix for bug #101 */
 630         this->BuildISupport();
 631         InitializeDisabledCommands(Config->DisabledCommands, this);
 632
 633         if (Config->ports.size() != (unsigned int)found_ports)
 634         {
 635                 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports);
 636                 printf("The following port(s) failed to bind:\n");
 637                 printf("Hint: Try using a public IP instead of blank or *\n\n");
 638                 int j = 1;
 639                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 640                 {
 641                         printf("%d.\tAddress: %s\tReason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
 642                 }
 643         }
 644
 645         printf("\nInspIRCd is now running as '%s'[%s] with %d max open sockets\n", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 646
 647 #ifndef WINDOWS
 648         if (!Config->nofork)
 649         {
 650                 if (kill(getppid(), SIGTERM) == -1)
 651                 {
 652                         printf("Error killing parent process: %s\n",strerror(errno));
 653                         Logs->Log("STARTUP", DEFAULT, "Error killing parent process: %s",strerror(errno));
 654                 }
 655         }
 656
 657         if (isatty(0) && isatty(1) && isatty(2))
 658         {
 659                 /* We didn't start from a TTY, we must have started from a background process -
 660                  * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
 661                  * close stdin/stdout
 662                  */
 663                 if ((!do_nofork) && (!do_testsuite))
 664                 {
 665                         fclose(stdin);
 666                         fclose(stderr);
 667                         fclose(stdout);
 668                 }
 669                 else
 670                 {
 671                         Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
 672                 }
 673         }
 674 #else
 675         WindowsIPC = new IPC(this);
 676         if(!Config->nofork)
 677         {
 678                 WindowsForkKillOwner(this);
 679                 FreeConsole();
 680         }
 681         /* Set win32 service as running, if we are running as a service */
 682         SetServiceRunning();
 683 #endif
 684
 685         Logs->Log("STARTUP", DEFAULT, "Startup complete as '%s'[%s], %d max open sockets", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 686
 687 #ifndef WIN32
 688         if (*(this->Config->SetGroup))
 689         {
 690                 int ret;
 691
 692                 // setgroups
 693                 ret = setgroups(0, NULL);
 694
 695                 if (ret == -1)
 696                 {
 697                         this->Logs->Log("SETGROUPS", DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
 698                         this->QuickExit(0);
 699                 }
 700
 701                 // setgid
 702                 struct group *g;
 703
 704                 errno = 0;
 705                 g = getgrnam(this->Config->SetGroup);
 706
 707                 if (!g)
 708                 {
 709                         this->Logs->Log("SETGUID", DEFAULT, "getgrnam() failed (bad user?): %s", strerror(errno));
 710                         this->QuickExit(0);
 711                 }
 712
 713                 ret = setgid(g->gr_gid);
 714
 715                 if (ret == -1)
 716                 {
 717                         this->Logs->Log("SETGUID", DEFAULT, "setgid() failed (bad user?): %s", strerror(errno));
 718                         this->QuickExit(0);
 719                 }
 720         }
 721
 722         if (*(this->Config->SetUser))
 723         {
 724                 // setuid
 725                 struct passwd *u;
 726
 727                 errno = 0;
 728                 u = getpwnam(this->Config->SetUser);
 729
 730                 if (!u)
 731                 {
 732                         this->Logs->Log("SETGUID", DEFAULT, "getpwnam() failed (bad user?): %s", strerror(errno));
 733                         this->QuickExit(0);
 734                 }
 735
 736                 int ret = setuid(u->pw_uid);
 737
 738                 if (ret == -1)
 739                 {
 740                         this->Logs->Log("SETGUID", DEFAULT, "setuid() failed (bad user?): %s", strerror(errno));
 741                         this->QuickExit(0);
 742                 }
 743         }
 744 #endif
 745
 746         this->WritePID(Config->PID);
 747 }
 748
 749 int InspIRCd::Run()
 750 {
 751         /* See if we're supposed to be running the test suite rather than entering the mainloop */
 752         if (Config->TestSuite)
 753         {
 754                 TestSuite* ts = new TestSuite(this);
 755                 delete ts;
 756                 Exit(0);
 757         }
 758
 759         RehashFinishMutex = Mutexes->CreateMutex();
 760
 761         while (true)
 762         {
 763 #ifndef WIN32
 764                 static rusage ru;
 765 #else
 766                 static time_t uptime;
 767                 static struct tm * stime;
 768                 static char window_title[100];
 769 #endif
 770
 771                 /* Check if there is a config thread which has finished executing but has not yet been freed */
 772                 RehashFinishMutex->Lock();
 773                 if (this->ConfigThread && this->ConfigThread->GetExitFlag())
 774                 {
 775                         /* Rehash has completed */
 776
 777                         /* Switch over logfiles */
 778                         Logs->CloseLogs();
 779                         Logs->OpenFileLogs();
 780
 781                         this->Logs->Log("CONFIG",DEBUG,"Detected ConfigThread exiting, tidying up...");
 782
 783                         /* These are currently not known to be threadsafe, so they are executed outside
 784                          * of the thread. It would be pretty simple to move them to the thread Run method
 785                          * once they are known threadsafe with all the correct mutexes in place. This might
 786                          * not be worth the effort however as these functions execute relatively quickly
 787                          * and would not benefit from being within the config read thread.
 788                          *
 789                          * XXX: The order of these is IMPORTANT, do not reorder them without testing
 790                          * thoroughly!!!
 791                          */
 792                         this->XLines->CheckELines();
 793                         this->XLines->ApplyLines();
 794                         this->Res->Rehash();
 795                         this->ResetMaxBans();
 796                         InitializeDisabledCommands(Config->DisabledCommands, this);
 797                         User* user = !Config->RehashUserUID.empty() ? FindNick(Config->RehashUserUID) : NULL;
 798                         FOREACH_MOD_I(this, I_OnRehash, OnRehash(user, Config->RehashParameter));
 799                         this->BuildISupport();
 800
 801                         /* IMPORTANT: This delete may hang if you fuck up your thread syncronization.
 802                          * It will hang waiting for the ConfigThread to 'join' to avoid race conditons,
 803                          * until the other thread is completed.
 804                          */
 805                         delete ConfigThread;
 806                         ConfigThread = NULL;
 807                 }
 808                 RehashFinishMutex->Unlock();
 809
 810                 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 811                  * Once per loop iteration is pleanty.
 812                  */
 813                 OLDTIME = TIME;
 814                 TIME = time(NULL);
 815
 816                 /* Run background module timers every few seconds
 817                  * (the docs say modules shouldnt rely on accurate
 818                  * timing using this event, so we dont have to
 819                  * time this exactly).
 820                  */
 821                 if (TIME != OLDTIME)
 822                 {
 823                         /* Allow a buffer of two seconds drift on this so that ntpdate etc dont harass admins */
 824                         if (TIME < OLDTIME - 2)
 825                         {
 826                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %lu secs.", (unsigned long)OLDTIME-TIME);
 827                         }
 828                         else if (TIME > OLDTIME + 2)
 829                         {
 830                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is jumping FORWARDS! Clock skipped %lu secs.", (unsigned long)TIME - OLDTIME);
 831                         }
 832
 833                         if ((TIME % 3600) == 0)
 834                         {
 835                                 this->RehashUsersAndChans();
 836                                 FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
 837                         }
 838
 839                         Timers->TickTimers(TIME);
 840                         this->DoBackgroundUserStuff();
 841
 842                         if ((TIME % 5) == 0)
 843                         {
 844                                 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 845                                 SNO->FlushSnotices();
 846                         }
 847 #ifndef WIN32
 848                         /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */
 849                         if (!getrusage(RUSAGE_SELF, &ru))
 850                         {
 851                                 gettimeofday(&this->stats->LastSampled, NULL);
 852                                 this->stats->LastCPU = ru.ru_utime;
 853                         }
 854 #else
 855                         WindowsIPC->Check();
 856 #endif
 857                 }
 858
 859                 /* Call the socket engine to wait on the active
 860                  * file descriptors. The socket engine has everything's
 861                  * descriptors in its list... dns, modules, users,
 862                  * servers... so its nice and easy, just one call.
 863                  * This will cause any read or write events to be
 864                  * dispatched to their handlers.
 865                  */
 866                 this->SE->DispatchEvents();
 867
 868                 /* if any users were quit, take them out */
 869                 this->GlobalCulls.Apply();
 870
 871                 /* If any inspsockets closed, remove them */
 872                 this->BufferedSocketCull();
 873
 874                 if (this->s_signal)
 875                 {
 876                         this->SignalHandler(s_signal);
 877                         this->s_signal = 0;
 878                 }
 879         }
 880
 881         return 0;
 882 }
 883
 884 void InspIRCd::BufferedSocketCull()
 885 {
 886         for (std::map<BufferedSocket*,BufferedSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)
 887         {
 888                 this->Logs->Log("MISC",DEBUG,"Cull socket");
 889                 SE->DelFd(x->second);
 890                 x->second->Close();
 891                 delete x->second;
 892         }
 893         SocketCull.clear();
 894 }
 895
 896 /**********************************************************************************/
 897
 898 /**
 899  * An ircd in five lines! bwahahaha. ahahahahaha. ahahah *cough*.
 900  */
 901
 902 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 903  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 904  * registration timeout maximum seconds)
 905  */
 906 bool InspIRCd::AllModulesReportReady(User* user)
 907 {
 908         for (EventHandlerIter i = Modules->EventHandlers[I_OnCheckReady].begin(); i != Modules->EventHandlers[I_OnCheckReady].end(); ++i)
 909         {
 910                 if (!(*i)->OnCheckReady(user))
 911                         return false;
 912         }
 913         return true;
 914 }
 915
 916 time_t InspIRCd::Time()
 917 {
 918         return TIME;
 919 }
 920
 921 void InspIRCd::SetSignal(int signal)
 922 {
 923         *mysig = signal;
 924 }
 925
 926 /* On posix systems, the flow of the program starts right here, with
 927  * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
 928  * defines smain() and the real main() is in the service code under
 929  * win32service.cpp. This allows the service control manager to control
 930  * the process where we are running as a windows service.
 931  */
 932 ENTRYPOINT
 933 {
 934         SI = new InspIRCd(argc, argv);
 935         mysig = &SI->s_signal;
 936         SI->Run();
 937         delete SI;
 938         return 0;
 939 }