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
  39         #include <pwd.h> // setuid
  40         #include <grp.h> // setgid
  41 #endif
  42
  43 #include <fstream>
  44 #include "xline.h"
  45 #include "bancache.h"
  46 #include "socketengine.h"
  47 #include "inspircd_se_config.h"
  48 #include "socket.h"
  49 #include "command_parse.h"
  50 #include "exitcodes.h"
  51 #include "caller.h"
  52 #include "testsuite.h"
  53
  54 InspIRCd* SI = NULL;
  55 int* mysig = NULL;
  56
  57 /** Seperate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
  58  * if it must.
  59  *
  60  * This is provided as a pointer so that modules can change it to their custom mapping tables,
  61  * e.g. for national character support.
  62  */
  63 unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
  64
  65
  66 /* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
  67  * XXX this is a bit ugly. -- w00t
  68  */
  69 const char* ExitCodes[] =
  70 {
  71                 "No error", /* 0 */
  72                 "DIE command", /* 1 */
  73                 "execv() failed", /* 2 */
  74                 "Internal error", /* 3 */
  75                 "Config file error", /* 4 */
  76                 "Logfile error", /* 5 */
  77                 "POSIX fork failed", /* 6 */
  78                 "Bad commandline parameters", /* 7 */
  79                 "No ports could be bound", /* 8 */
  80                 "Can't write PID file", /* 9 */
  81                 "SocketEngine could not initialize", /* 10 */
  82                 "Refusing to start up as root", /* 11 */
  83                 "Found a <die> tag!", /* 12 */
  84                 "Couldn't load module on startup", /* 13 */
  85                 "Could not create windows forked process", /* 14 */
  86                 "Received SIGTERM", /* 15 */
  87                 "Bad command handler loaded", /* 16 */
  88                 "RegisterServiceCtrlHandler failed", /* 17 */
  89                 "UpdateSCMStatus failed", /* 18 */
  90                 "CreateEvent failed" /* 19 */
  91 };
  92
  93 template<typename T> void DeleteZero(T* n)
  94 {
  95         if (n != NULL)
  96         {
  97                 delete n;
  98                 n = NULL;
  99         }
 100 }
 101
 102 void InspIRCd::Cleanup()
 103 {
 104         if (Config)
 105         {
 106                 for (unsigned int i = 0; i < Config->ports.size(); i++)
 107                 {
 108                         /* This calls the constructor and closes the listening socket */
 109                         delete Config->ports[i];
 110                 }
 111
 112                 Config->ports.clear();
 113         }
 114
 115         /* Close all client sockets, or the new process inherits them */
 116         for (std::vector<User*>::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++)
 117         {
 118                 this->Users->QuitUser((*i), "Server shutdown");
 119                 (*i)->CloseSocket();
 120         }
 121
 122         /* We do this more than once, so that any service providers get a
 123          * chance to be unhooked by the modules using them, but then get
 124          * a chance to be removed themsleves.
 125          *
 126          * XXX there may be a better way to do this with 1.2
 127          */
 128         for (int tries = 0; tries < 3; tries++)
 129         {
 130                 std::vector<std::string> module_names = Modules->GetAllModuleNames(0);
 131                 for (std::vector<std::string>::iterator k = module_names.begin(); k != module_names.end(); ++k)
 132                 {
 133                         /* Unload all modules, so they get a chance to clean up their listeners */
 134                         this->Modules->Unload(k->c_str());
 135                 }
 136         }
 137         /* Remove core commands */
 138         Parser->RemoveCommands("<core>");
 139
 140         /* Cleanup Server Names */
 141         for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)
 142                 delete (*itr);
 143
 144         /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
 145         /* Must be deleted before modes as it decrements modelines */
 146         DeleteZero(this->Users);
 147         DeleteZero(this->Modes);
 148         DeleteZero(this->XLines);
 149         DeleteZero(this->Parser);
 150         DeleteZero(this->stats);
 151         DeleteZero(this->Modules);
 152         DeleteZero(this->BanCache);
 153         DeleteZero(this->SNO);
 154         DeleteZero(this->Config);
 155         DeleteZero(this->Res);
 156         DeleteZero(this->chanlist);
 157         DeleteZero(this->PI);
 158         DeleteZero(this->Threads);
 159         DeleteZero(this->Timers);
 160         /* Close logging */
 161         this->Logs->CloseLogs();
 162         DeleteZero(this->Logs);
 163
 164         delete RehashFinishMutex;
 165 }
 166
 167 void InspIRCd::Restart(const std::string &reason)
 168 {
 169         /* SendError flushes each client's queue,
 170          * regardless of writeability state
 171          */
 172         this->SendError(reason);
 173
 174         /* Figure out our filename (if theyve renamed it, we're boned) */
 175         std::string me;
 176
 177 #ifdef WINDOWS
 178         char module[MAX_PATH];
 179         if (GetModuleFileName(NULL, module, MAX_PATH))
 180                 me = module;
 181 #else
 182         me = Config->MyDir + "/inspircd";
 183 #endif
 184
 185         char** argv = Config->argv;
 186
 187         this->Cleanup();
 188
 189         if (execv(me.c_str(), argv) == -1)
 190         {
 191                 /* Will raise a SIGABRT if not trapped */
 192                 throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));
 193         }
 194 }
 195
 196 void InspIRCd::ResetMaxBans()
 197 {
 198         for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)
 199                 i->second->ResetMaxBans();
 200 }
 201
 202 /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')
 203  * we must occasionally rehash the hash (yes really).
 204  * We do this by copying the entries from the old hash to a new hash, causing all
 205  * empty buckets to be weeded out of the hash. We dont do this on a timer, as its
 206  * very expensive, so instead we do it when the user types /REHASH and expects a
 207  * short delay anyway.
 208  */
 209 void InspIRCd::RehashUsersAndChans()
 210 {
 211         user_hash* old_users = this->Users->clientlist;
 212         user_hash* old_uuid  = this->Users->uuidlist;
 213         chan_hash* old_chans = this->chanlist;
 214
 215         this->Users->clientlist = new user_hash();
 216         this->Users->uuidlist = new user_hash();
 217         this->chanlist = new chan_hash();
 218
 219         for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)
 220                 this->Users->clientlist->insert(*n);
 221
 222         delete old_users;
 223
 224         for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++)
 225                 this->Users->uuidlist->insert(*n);
 226
 227         delete old_uuid;
 228
 229         for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)
 230                 this->chanlist->insert(*n);
 231
 232         delete old_chans;
 233 }
 234
 235 void InspIRCd::SetSignals()
 236 {
 237 #ifndef WIN32
 238         signal(SIGALRM, SIG_IGN);
 239         signal(SIGHUP, InspIRCd::SetSignal);
 240         signal(SIGPIPE, SIG_IGN);
 241         signal(SIGCHLD, SIG_IGN);
 242 #endif
 243         signal(SIGTERM, InspIRCd::SetSignal);
 244 }
 245
 246 void InspIRCd::QuickExit(int status)
 247 {
 248         exit(0);
 249 }
 250
 251 bool InspIRCd::DaemonSeed()
 252 {
 253 #ifdef WINDOWS
 254         printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());
 255         return true;
 256 #else
 257         signal(SIGTERM, InspIRCd::QuickExit);
 258
 259         int childpid;
 260         if ((childpid = fork ()) < 0)
 261                 return false;
 262         else if (childpid > 0)
 263         {
 264                 /* We wait here for the child process to kill us,
 265                  * so that the shell prompt doesnt come back over
 266                  * the output.
 267                  * Sending a kill with a signal of 0 just checks
 268                  * if the child pid is still around. If theyre not,
 269                  * they threw an error and we should give up.
 270                  */
 271                 while (kill(childpid, 0) != -1)
 272                         sleep(1);
 273                 exit(0);
 274         }
 275         setsid ();
 276         umask (007);
 277         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 278
 279         signal(SIGTERM, InspIRCd::SetSignal);
 280
 281         rlimit rl;
 282         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 283         {
 284                 this->Logs->Log("STARTUP",DEFAULT,"Failed to getrlimit()!");
 285                 return false;
 286         }
 287         else
 288         {
 289                 rl.rlim_cur = rl.rlim_max;
 290                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 291                         this->Logs->Log("STARTUP",DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 292         }
 293
 294         return true;
 295 #endif
 296 }
 297
 298 void InspIRCd::WritePID(const std::string &filename)
 299 {
 300         std::string fname = (filename.empty() ? "inspircd.pid" : filename);
 301         std::replace(fname.begin(), fname.end(), '\\', '/');
 302         if ((fname[0] != '/') && (!Config->StartsWithWindowsDriveLetter(filename)))
 303         {
 304                 std::string::size_type pos;
 305                 std::string confpath = this->ConfigFileName;
 306                 if ((pos = confpath.rfind("/")) != std::string::npos)
 307                 {
 308                         /* Leaves us with just the path */
 309                         fname = confpath.substr(0, pos) + std::string("/") + fname;
 310                 }
 311         }
 312         std::ofstream outfile(fname.c_str());
 313         if (outfile.is_open())
 314         {
 315                 outfile << getpid();
 316                 outfile.close();
 317         }
 318         else
 319         {
 320                 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
 321                 this->Logs->Log("STARTUP",DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
 322                 Exit(EXIT_STATUS_PID);
 323         }
 324 }
 325
 326 InspIRCd::InspIRCd(int argc, char** argv)
 327         : GlobalCulls(this),
 328
 329          /* Functor initialisation. Note that the ordering here is very important.
 330           *
 331           * THIS MUST MATCH ORDER OF DECLARATION OF THE HandleWhateverFunc classes
 332           * within class InspIRCd.
 333           */
 334          HandleProcessUser(this),
 335          HandleIsNick(this),
 336          HandleIsIdent(this),
 337          HandleFindDescriptor(this),
 338          HandleFloodQuitUser(this),
 339          HandleIsChannel(this),
 340          HandleIsSID(this),
 341          HandleRehash(this),
 342
 343          /* Functor pointer initialisation. Must match the order of the list above
 344           *
 345           * THIS MUST MATCH THE ORDER OF DECLARATION OF THE FUNCTORS, e.g. the methods
 346           * themselves within the class.
 347           */
 348          ProcessUser(&HandleProcessUser),
 349          IsChannel(&HandleIsChannel),
 350          IsSID(&HandleIsSID),
 351          Rehash(&HandleRehash),
 352          IsNick(&HandleIsNick),
 353          IsIdent(&HandleIsIdent),
 354          FindDescriptor(&HandleFindDescriptor),
 355          FloodQuitUser(&HandleFloodQuitUser)
 356
 357 {
 358 #ifdef WIN32
 359         // Strict, frequent checking of memory on debug builds
 360         _CrtSetDbgFlag ( _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
 361
 362         // Avoid erroneous frees on early exit
 363         WindowsIPC = 0;
 364 #endif
 365         int found_ports = 0;
 366         FailedPortList pl;
 367         int do_version = 0, do_nofork = 0, do_debug = 0,
 368             do_nolog = 0, do_root = 0, do_testsuite = 0;    /* flag variables */
 369         char c = 0;
 370
 371         // Initialize so that if we exit before proper initialization they're not deleted
 372         this->Logs = 0;
 373         this->Threads = 0;
 374         this->PI = 0;
 375         this->Users = 0;
 376         this->chanlist = 0;
 377         this->Config = 0;
 378         this->SNO = 0;
 379         this->BanCache = 0;
 380         this->Modules = 0;
 381         this->stats = 0;
 382         this->Timers = 0;
 383         this->Parser = 0;
 384         this->XLines = 0;
 385         this->Modes = 0;
 386         this->Res = 0;
 387
 388         // Initialise TIME
 389         this->TIME = time(NULL);
 390
 391         memset(&server, 0, sizeof(server));
 392         memset(&client, 0, sizeof(client));
 393
 394         // This must be created first, so other parts of Insp can use it while starting up
 395         this->Logs = new LogManager(this);
 396
 397         SocketEngineFactory* SEF = new SocketEngineFactory();
 398         SE = SEF->Create(this);
 399         delete SEF;
 400
 401         ThreadEngineFactory* tef = new ThreadEngineFactory();
 402         this->Threads = tef->Create(this);
 403         delete tef;
 404         this->Mutexes = new MutexFactory(this);
 405
 406         /* Default implementation does nothing */
 407         this->PI = new ProtocolInterface(this);
 408
 409         this->s_signal = 0;
 410
 411         // Create base manager classes early, so nothing breaks
 412         this->Users = new UserManager(this);
 413
 414         this->Users->unregistered_count = 0;
 415
 416         this->Users->clientlist = new user_hash();
 417         this->Users->uuidlist = new user_hash();
 418         this->chanlist = new chan_hash();
 419
 420         this->Config = new ServerConfig(this);
 421         this->SNO = new SnomaskManager(this);
 422         this->BanCache = new BanCacheManager(this);
 423         this->Modules = new ModuleManager(this);
 424         this->stats = new serverstats();
 425         this->Timers = new TimerManager(this);
 426         this->Parser = new CommandParser(this);
 427         this->XLines = new XLineManager(this);
 428
 429         this->Config->argv = argv;
 430         this->Config->argc = argc;
 431
 432         if (chdir(Config->GetFullProgDir().c_str()))
 433         {
 434                 printf("Unable to change to my directory: %s\nAborted.", strerror(errno));
 435                 exit(0);
 436         }
 437
 438         this->Config->opertypes.clear();
 439         this->Config->operclass.clear();
 440
 441         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 442         srand(this->TIME);
 443
 444         *this->LogFileName = 0;
 445         strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);
 446
 447         struct option longopts[] =
 448         {
 449                 { "nofork",     no_argument,            &do_nofork,     1       },
 450                 { "logfile",    required_argument,      NULL,           'f'     },
 451                 { "config",     required_argument,      NULL,           'c'     },
 452                 { "debug",      no_argument,            &do_debug,      1       },
 453                 { "nolog",      no_argument,            &do_nolog,      1       },
 454                 { "runasroot",  no_argument,            &do_root,       1       },
 455                 { "version",    no_argument,            &do_version,    1       },
 456                 { "testsuite",  no_argument,            &do_testsuite,  1       },
 457                 { 0, 0, 0, 0 }
 458         };
 459
 460         while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1)
 461         {
 462                 switch (c)
 463                 {
 464                         case 'f':
 465                                 /* Log filename was set */
 466                                 strlcpy(LogFileName, optarg, MAXBUF);
 467                         break;
 468                         case 'c':
 469                                 /* Config filename was set */
 470                                 strlcpy(ConfigFileName, optarg, MAXBUF);
 471                         break;
 472                         case 0:
 473                                 /* getopt_long_only() set an int variable, just keep going */
 474                         break;
 475                         default:
 476                                 /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */
 477                                 printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>]\n\
 478                                                   [--runasroot] [--version] [--config <config>] [--testsuite]\n", argv[0]);
 479                                 Exit(EXIT_STATUS_ARGV);
 480                         break;
 481                 }
 482         }
 483
 484         if (do_testsuite)
 485                 do_nofork = do_debug = true;
 486
 487         if (do_version)
 488         {
 489                 printf("\n%s r%s\n", VERSION, REVISION);
 490                 Exit(EXIT_STATUS_NOERROR);
 491         }
 492
 493 #ifdef WIN32
 494
 495         // Handle forking
 496         if(!do_nofork)
 497         {
 498                 DWORD ExitCode = WindowsForkStart(this);
 499                 if(ExitCode)
 500                         exit(ExitCode);
 501         }
 502
 503         // Set up winsock
 504         WSADATA wsadata;
 505         WSAStartup(MAKEWORD(2,0), &wsadata);
 506         ChangeWindowsSpecificPointers(this);
 507 #endif
 508         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 509
 510         /* Set the finished argument values */
 511         Config->nofork = do_nofork;
 512         Config->forcedebug = do_debug;
 513         Config->writelog = !do_nolog;
 514         Config->TestSuite = do_testsuite;
 515
 516         if (!this->OpenLog(argv, argc))
 517         {
 518                 printf("ERROR: Could not open logfile %s: %s\n\n", Config->logpath.c_str(), strerror(errno));
 519                 Exit(EXIT_STATUS_LOG);
 520         }
 521
 522         if (!ServerConfig::FileExists(this->ConfigFileName))
 523         {
 524 #ifdef WIN32
 525                 /* Windows can (and defaults to) hide file extensions, so let's play a bit nice for windows users. */
 526                 std::string txtconf = this->ConfigFilename;
 527                 txtconf.append(".txt");
 528
 529                 if (ServerConfig::FileExists(txtconf.c_str()))
 530                 {
 531                         strlcat(this->ConfigFileName, ".txt", MAXBUF);
 532                 }
 533                 else
 534 #endif
 535                 {
 536                         printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName);
 537                         this->Logs->Log("STARTUP",DEFAULT,"Unable to open config file %s", this->ConfigFileName);
 538                         Exit(EXIT_STATUS_CONFIG);
 539                 }
 540         }
 541
 542         printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
 543         printf_c("(C) InspIRCd Development Team.\033[0m\n\n");
 544         printf_c("Developers:\n");
 545         printf_c("\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special\n");
 546         printf_c("\t\033[1;32mpippijn, peavey, aquanight, fez, psychon, dz\033[0m\n\n");
 547         printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
 548
 549         Config->ClearStack();
 550
 551         this->Modes = new ModeParser(this);
 552
 553         if (!do_root)
 554                 this->CheckRoot();
 555         else
 556         {
 557                 printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");
 558                 printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");
 559                 printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");
 560                 printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");
 561                 printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");
 562                 printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");
 563                 printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");
 564                 printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");
 565                 sleep(20);
 566         }
 567
 568         this->SetSignals();
 569
 570         if (!Config->nofork)
 571         {
 572                 if (!this->DaemonSeed())
 573                 {
 574                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 575                         Logs->Log("STARTUP", DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
 576                         Exit(EXIT_STATUS_FORK);
 577                 }
 578         }
 579
 580         SE->RecoverFromFork();
 581
 582         /* During startup we don't actually initialize this
 583          * in the thread engine.
 584          */
 585         this->ConfigThread = new ConfigReaderThread(this, true, "");
 586         ConfigThread->Run();
 587         delete ConfigThread;
 588         this->ConfigThread = NULL;
 589         /* Switch over logfiles */
 590         Logs->OpenFileLogs();
 591
 592         /** Note: This is safe, the method checks for user == NULL */
 593         this->Parser->SetupCommandTable();
 594
 595         this->Res = new DNS(this);
 596
 597         this->AddServerName(Config->ServerName);
 598
 599         /*
 600          * Initialise SID/UID.
 601          * For an explanation as to exactly how this works, and why it works this way, see GetUID().
 602          *   -- w00t
 603          */
 604         if (!*Config->sid)
 605         {
 606                 // Generate one
 607                 size_t sid = 0;
 608
 609                 for (const char* x = Config->ServerName; *x; ++x)
 610                         sid = 5 * sid + *x;
 611                 for (const char* y = Config->ServerDesc; *y; ++y)
 612                         sid = 5 * sid + *y;
 613                 sid = sid % 999;
 614
 615                 Config->sid[0] = (char)(sid / 100 + 48);
 616                 Config->sid[1] = (char)(((sid / 10) % 10) + 48);
 617                 Config->sid[2] = (char)(sid % 10 + 48);
 618                 Config->sid[3] = '\0';
 619         }
 620
 621         /* set up fake client again this time with the correct uid */
 622         this->FakeClient = new User(this, "#INVALID");
 623         this->FakeClient->SetFd(FD_MAGIC_NUMBER);
 624
 625         // Get XLine to do it's thing.
 626         this->XLines->CheckELines();
 627         this->XLines->ApplyLines();
 628
 629         CheckDie();
 630         int bounditems = BindPorts(true, found_ports, pl);
 631
 632         printf("\n");
 633
 634         this->Modules->LoadAll();
 635
 636         /* Just in case no modules were loaded - fix for bug #101 */
 637         this->BuildISupport();
 638         InitializeDisabledCommands(Config->DisabledCommands, this);
 639
 640         if (Config->ports.size() != (unsigned int)found_ports)
 641         {
 642                 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports);
 643                 printf("The following port(s) failed to bind:\n");
 644                 printf("Hint: Try using a public IP instead of blank or *\n\n");
 645                 int j = 1;
 646                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 647                 {
 648                         printf("%d.\tAddress: %s\tReason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
 649                 }
 650         }
 651
 652         printf("\nInspIRCd is now running as '%s'[%s] with %d max open sockets\n", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 653
 654 #ifndef WINDOWS
 655         if (!Config->nofork)
 656         {
 657                 if (kill(getppid(), SIGTERM) == -1)
 658                 {
 659                         printf("Error killing parent process: %s\n",strerror(errno));
 660                         Logs->Log("STARTUP", DEFAULT, "Error killing parent process: %s",strerror(errno));
 661                 }
 662         }
 663
 664         if (isatty(0) && isatty(1) && isatty(2))
 665         {
 666                 /* We didn't start from a TTY, we must have started from a background process -
 667                  * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
 668                  * close stdin/stdout
 669                  */
 670                 if ((!do_nofork) && (!do_testsuite))
 671                 {
 672                         fclose(stdin);
 673                         fclose(stderr);
 674                         fclose(stdout);
 675                 }
 676                 else
 677                 {
 678                         Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
 679                 }
 680         }
 681 #else
 682         WindowsIPC = new IPC(this);
 683         if(!Config->nofork)
 684         {
 685                 WindowsForkKillOwner(this);
 686                 FreeConsole();
 687         }
 688         /* Set win32 service as running, if we are running as a service */
 689         SetServiceRunning();
 690 #endif
 691
 692         Logs->Log("STARTUP", DEFAULT, "Startup complete as '%s'[%s], %d max open sockets", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 693
 694 #ifndef WIN32
 695         if (*(this->Config->SetGroup))
 696         {
 697                 int ret;
 698
 699                 // setgroups
 700                 ret = setgroups(0, NULL);
 701
 702                 if (ret == -1)
 703                 {
 704                         this->Logs->Log("SETGROUPS", DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
 705                         this->QuickExit(0);
 706                 }
 707
 708                 // setgid
 709                 struct group *g;
 710
 711                 errno = 0;
 712                 g = getgrnam(this->Config->SetGroup);
 713
 714                 if (!g)
 715                 {
 716                         this->Logs->Log("SETGUID", DEFAULT, "getgrnam() failed (bad user?): %s", strerror(errno));
 717                         this->QuickExit(0);
 718                 }
 719
 720                 ret = setgid(g->gr_gid);
 721
 722                 if (ret == -1)
 723                 {
 724                         this->Logs->Log("SETGUID", DEFAULT, "setgid() failed (bad user?): %s", strerror(errno));
 725                         this->QuickExit(0);
 726                 }
 727         }
 728
 729         if (*(this->Config->SetUser))
 730         {
 731                 // setuid
 732                 struct passwd *u;
 733
 734                 errno = 0;
 735                 u = getpwnam(this->Config->SetUser);
 736
 737                 if (!u)
 738                 {
 739                         this->Logs->Log("SETGUID", DEFAULT, "getpwnam() failed (bad user?): %s", strerror(errno));
 740                         this->QuickExit(0);
 741                 }
 742
 743                 int ret = setuid(u->pw_uid);
 744
 745                 if (ret == -1)
 746                 {
 747                         this->Logs->Log("SETGUID", DEFAULT, "setuid() failed (bad user?): %s", strerror(errno));
 748                         this->QuickExit(0);
 749                 }
 750         }
 751 #endif
 752
 753         this->WritePID(Config->PID);
 754 }
 755
 756 int InspIRCd::Run()
 757 {
 758         /* See if we're supposed to be running the test suite rather than entering the mainloop */
 759         if (Config->TestSuite)
 760         {
 761                 TestSuite* ts = new TestSuite(this);
 762                 delete ts;
 763                 Exit(0);
 764         }
 765
 766         RehashFinishMutex = Mutexes->CreateMutex();
 767
 768         while (true)
 769         {
 770 #ifndef WIN32
 771                 static rusage ru;
 772 #else
 773                 static time_t uptime;
 774                 static struct tm * stime;
 775                 static char window_title[100];
 776 #endif
 777
 778                 /* Check if there is a config thread which has finished executing but has not yet been freed */
 779                 RehashFinishMutex->Lock();
 780                 if (this->ConfigThread && this->ConfigThread->GetExitFlag())
 781                 {
 782                         /* Rehash has completed */
 783
 784                         /* Switch over logfiles */
 785                         Logs->CloseLogs();
 786                         Logs->OpenFileLogs();
 787
 788                         this->Logs->Log("CONFIG",DEBUG,"Detected ConfigThread exiting, tidying up...");
 789
 790                         /* These are currently not known to be threadsafe, so they are executed outside
 791                          * of the thread. It would be pretty simple to move them to the thread Run method
 792                          * once they are known threadsafe with all the correct mutexes in place. This might
 793                          * not be worth the effort however as these functions execute relatively quickly
 794                          * and would not benefit from being within the config read thread.
 795                          *
 796                          * XXX: The order of these is IMPORTANT, do not reorder them without testing
 797                          * thoroughly!!!
 798                          */
 799                         this->XLines->CheckELines();
 800                         this->XLines->ApplyLines();
 801                         this->Res->Rehash();
 802                         this->ResetMaxBans();
 803                         InitializeDisabledCommands(Config->DisabledCommands, this);
 804                         User* user = !Config->RehashUserUID.empty() ? FindNick(Config->RehashUserUID) : NULL;
 805                         FOREACH_MOD_I(this, I_OnRehash, OnRehash(user, Config->RehashParameter));
 806                         this->BuildISupport();
 807
 808                         /* IMPORTANT: This delete may hang if you fuck up your thread syncronization.
 809                          * It will hang waiting for the ConfigThread to 'join' to avoid race conditons,
 810                          * until the other thread is completed.
 811                          */
 812                         delete ConfigThread;
 813                         ConfigThread = NULL;
 814                 }
 815                 RehashFinishMutex->Unlock();
 816
 817                 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 818                  * Once per loop iteration is pleanty.
 819                  */
 820                 OLDTIME = TIME;
 821                 TIME = time(NULL);
 822
 823                 /* Run background module timers every few seconds
 824                  * (the docs say modules shouldnt rely on accurate
 825                  * timing using this event, so we dont have to
 826                  * time this exactly).
 827                  */
 828                 if (TIME != OLDTIME)
 829                 {
 830                         /* Allow a buffer of two seconds drift on this so that ntpdate etc dont harass admins */
 831                         if (TIME < OLDTIME - 2)
 832                         {
 833                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %lu secs.", (unsigned long)OLDTIME-TIME);
 834                         }
 835                         else if (TIME > OLDTIME + 2)
 836                         {
 837                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is jumping FORWARDS! Clock skipped %lu secs.", (unsigned long)TIME - OLDTIME);
 838                         }
 839
 840                         if ((TIME % 3600) == 0)
 841                         {
 842                                 this->RehashUsersAndChans();
 843                                 FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
 844                         }
 845
 846                         Timers->TickTimers(TIME);
 847                         this->DoBackgroundUserStuff();
 848
 849                         if ((TIME % 5) == 0)
 850                         {
 851                                 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 852                                 SNO->FlushSnotices();
 853                         }
 854 #ifndef WIN32
 855                         /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */
 856                         if (!getrusage(RUSAGE_SELF, &ru))
 857                         {
 858                                 gettimeofday(&this->stats->LastSampled, NULL);
 859                                 this->stats->LastCPU = ru.ru_utime;
 860                         }
 861 #else
 862                         WindowsIPC->Check();
 863 #endif
 864                 }
 865
 866                 /* Call the socket engine to wait on the active
 867                  * file descriptors. The socket engine has everything's
 868                  * descriptors in its list... dns, modules, users,
 869                  * servers... so its nice and easy, just one call.
 870                  * This will cause any read or write events to be
 871                  * dispatched to their handlers.
 872                  */
 873                 this->SE->DispatchEvents();
 874
 875                 /* if any users were quit, take them out */
 876                 this->GlobalCulls.Apply();
 877
 878                 /* If any inspsockets closed, remove them */
 879                 this->BufferedSocketCull();
 880
 881                 if (this->s_signal)
 882                 {
 883                         this->SignalHandler(s_signal);
 884                         this->s_signal = 0;
 885                 }
 886         }
 887
 888         return 0;
 889 }
 890
 891 void InspIRCd::BufferedSocketCull()
 892 {
 893         for (std::map<BufferedSocket*,BufferedSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)
 894         {
 895                 this->Logs->Log("MISC",DEBUG,"Cull socket");
 896                 SE->DelFd(x->second);
 897                 x->second->Close();
 898                 delete x->second;
 899         }
 900         SocketCull.clear();
 901 }
 902
 903 /**********************************************************************************/
 904
 905 /**
 906  * An ircd in five lines! bwahahaha. ahahahahaha. ahahah *cough*.
 907  */
 908
 909 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 910  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 911  * registration timeout maximum seconds)
 912  */
 913 bool InspIRCd::AllModulesReportReady(User* user)
 914 {
 915         for (EventHandlerIter i = Modules->EventHandlers[I_OnCheckReady].begin(); i != Modules->EventHandlers[I_OnCheckReady].end(); ++i)
 916         {
 917                 if (!(*i)->OnCheckReady(user))
 918                         return false;
 919         }
 920         return true;
 921 }
 922
 923 time_t InspIRCd::Time()
 924 {
 925         return TIME;
 926 }
 927
 928 void InspIRCd::SetSignal(int signal)
 929 {
 930         *mysig = signal;
 931 }
 932
 933 /* On posix systems, the flow of the program starts right here, with
 934  * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
 935  * defines smain() and the real main() is in the service code under
 936  * win32service.cpp. This allows the service control manager to control
 937  * the process where we are running as a windows service.
 938  */
 939 ENTRYPOINT
 940 {
 941         SI = new InspIRCd(argc, argv);
 942         mysig = &SI->s_signal;
 943         SI->Run();
 944         delete SI;
 945         return 0;
 946 }