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