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 /* $Core */
  15 #include "inspircd.h"
  16 #include "inspircd_version.h"
  17 #include <signal.h>
  18
  19 #ifndef WIN32
  20         #include <dirent.h>
  21         #include <unistd.h>
  22         #include <sys/resource.h>
  23         #include <dlfcn.h>
  24         #include <getopt.h>
  25
  26         /* Some systems don't define RUSAGE_SELF. This should fix them. */
  27         #ifndef RUSAGE_SELF
  28                 #define RUSAGE_SELF 0
  29         #endif
  30
  31         #include <pwd.h> // setuid
  32         #include <grp.h> // setgid
  33 #endif
  34
  35 #include <fstream>
  36 #include "xline.h"
  37 #include "bancache.h"
  38 #include "socketengine.h"
  39 #include "inspircd_se_config.h"
  40 #include "socket.h"
  41 #include "command_parse.h"
  42 #include "exitcodes.h"
  43 #include "caller.h"
  44 #include "testsuite.h"
  45
  46 InspIRCd* ServerInstance = NULL;
  47 int* mysig = NULL;
  48
  49 /** Seperate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
  50  * if it must.
  51  *
  52  * This is provided as a pointer so that modules can change it to their custom mapping tables,
  53  * e.g. for national character support.
  54  */
  55 unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
  56
  57
  58 /* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
  59  * XXX this is a bit ugly. -- w00t
  60  */
  61 const char* ExitCodes[] =
  62 {
  63                 "No error", /* 0 */
  64                 "DIE command", /* 1 */
  65                 "execv() failed", /* 2 */
  66                 "Internal error", /* 3 */
  67                 "Config file error", /* 4 */
  68                 "Logfile error", /* 5 */
  69                 "POSIX fork failed", /* 6 */
  70                 "Bad commandline parameters", /* 7 */
  71                 "No ports could be bound", /* 8 */
  72                 "Can't write PID file", /* 9 */
  73                 "SocketEngine could not initialize", /* 10 */
  74                 "Refusing to start up as root", /* 11 */
  75                 "Found a <die> tag!", /* 12 */
  76                 "Couldn't load module on startup", /* 13 */
  77                 "Could not create windows forked process", /* 14 */
  78                 "Received SIGTERM", /* 15 */
  79                 "Bad command handler loaded", /* 16 */
  80                 "RegisterServiceCtrlHandler failed", /* 17 */
  81                 "UpdateSCMStatus failed", /* 18 */
  82                 "CreateEvent failed" /* 19 */
  83 };
  84
  85 template<typename T> static void DeleteZero(T*&n)
  86 {
  87         if (n != NULL)
  88         {
  89                 delete n;
  90                 n = NULL;
  91         }
  92 }
  93
  94 void InspIRCd::Cleanup()
  95 {
  96         if (Config)
  97         {
  98                 for (unsigned int i = 0; i < ports.size(); i++)
  99                 {
 100                         /* This calls the constructor and closes the listening socket */
 101                         delete ports[i];
 102                 }
 103
 104                 ports.clear();
 105         }
 106
 107         /* Close all client sockets, or the new process inherits them */
 108         std::vector<User*>::reverse_iterator i = Users->local_users.rbegin();
 109         while (i != this->Users->local_users.rend())
 110         {
 111                 User* u = *i++;
 112                 Users->QuitUser(u, "Server shutdown");
 113                 u->CloseSocket();
 114         }
 115
 116         /* We do this more than once, so that any service providers get a
 117          * chance to be unhooked by the modules using them, but then get
 118          * a chance to be removed themsleves.
 119          *
 120          * XXX there may be a better way to do this with 1.2
 121          */
 122         for (int tries = 0; tries < 4; tries++)
 123         {
 124                 std::vector<std::string> module_names = Modules->GetAllModuleNames(0);
 125                 for (std::vector<std::string>::iterator k = module_names.begin(); k != module_names.end(); ++k)
 126                 {
 127                         /* Unload all modules, so they get a chance to clean up their listeners */
 128                         this->Modules->Unload(k->c_str());
 129                 }
 130         }
 131
 132         /* Cleanup Server Names */
 133         for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)
 134                 delete (*itr);
 135
 136         /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
 137         /* Must be deleted before modes as it decrements modelines */
 138         DeleteZero(this->FakeClient);
 139         DeleteZero(this->Users);
 140         DeleteZero(this->Modes);
 141         DeleteZero(this->XLines);
 142         DeleteZero(this->Parser);
 143         DeleteZero(this->stats);
 144         DeleteZero(this->Modules);
 145         DeleteZero(this->BanCache);
 146         DeleteZero(this->SNO);
 147         DeleteZero(this->Config);
 148         DeleteZero(this->Res);
 149         DeleteZero(this->chanlist);
 150         DeleteZero(this->PI);
 151         DeleteZero(this->Threads);
 152         DeleteZero(this->Timers);
 153         DeleteZero(this->SE);
 154         /* Close logging */
 155         this->Logs->CloseLogs();
 156         DeleteZero(this->Logs);
 157 }
 158
 159 void InspIRCd::Restart(const std::string &reason)
 160 {
 161         /* SendError flushes each client's queue,
 162          * regardless of writeability state
 163          */
 164         this->SendError(reason);
 165
 166         /* Figure out our filename (if theyve renamed it, we're boned) */
 167         std::string me;
 168
 169 #ifdef WINDOWS
 170         char module[MAX_PATH];
 171         if (GetModuleFileName(NULL, module, MAX_PATH))
 172                 me = module;
 173 #else
 174         me = Config->MyDir + "/inspircd";
 175 #endif
 176
 177         char** argv = Config->argv;
 178
 179         this->Cleanup();
 180
 181         if (execv(me.c_str(), argv) == -1)
 182         {
 183                 /* Will raise a SIGABRT if not trapped */
 184                 throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));
 185         }
 186 }
 187
 188 void InspIRCd::ResetMaxBans()
 189 {
 190         for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)
 191                 i->second->ResetMaxBans();
 192 }
 193
 194 /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')
 195  * we must occasionally rehash the hash (yes really).
 196  * We do this by copying the entries from the old hash to a new hash, causing all
 197  * empty buckets to be weeded out of the hash. We dont do this on a timer, as its
 198  * very expensive, so instead we do it when the user types /REHASH and expects a
 199  * short delay anyway.
 200  */
 201 void InspIRCd::RehashUsersAndChans()
 202 {
 203         user_hash* old_users = this->Users->clientlist;
 204         user_hash* old_uuid  = this->Users->uuidlist;
 205         chan_hash* old_chans = this->chanlist;
 206
 207         this->Users->clientlist = new user_hash();
 208         this->Users->uuidlist = new user_hash();
 209         this->chanlist = new chan_hash();
 210
 211         for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)
 212                 this->Users->clientlist->insert(*n);
 213
 214         delete old_users;
 215
 216         for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++)
 217                 this->Users->uuidlist->insert(*n);
 218
 219         delete old_uuid;
 220
 221         for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)
 222                 this->chanlist->insert(*n);
 223
 224         delete old_chans;
 225 }
 226
 227 void InspIRCd::SetSignals()
 228 {
 229 #ifndef WIN32
 230         signal(SIGALRM, SIG_IGN);
 231         signal(SIGHUP, InspIRCd::SetSignal);
 232         signal(SIGPIPE, SIG_IGN);
 233         signal(SIGCHLD, SIG_IGN);
 234         /* We want E2BIG not a signal! */
 235         signal(SIGXFSZ, SIG_IGN);
 236 #endif
 237         signal(SIGTERM, InspIRCd::SetSignal);
 238 }
 239
 240 void InspIRCd::QuickExit(int status)
 241 {
 242         exit(0);
 243 }
 244
 245 bool InspIRCd::DaemonSeed()
 246 {
 247 #ifdef WINDOWS
 248         printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());
 249         return true;
 250 #else
 251         signal(SIGTERM, InspIRCd::QuickExit);
 252
 253         int childpid;
 254         if ((childpid = fork ()) < 0)
 255                 return false;
 256         else if (childpid > 0)
 257         {
 258                 /* We wait here for the child process to kill us,
 259                  * so that the shell prompt doesnt come back over
 260                  * the output.
 261                  * Sending a kill with a signal of 0 just checks
 262                  * if the child pid is still around. If theyre not,
 263                  * they threw an error and we should give up.
 264                  */
 265                 while (kill(childpid, 0) != -1)
 266                         sleep(1);
 267                 exit(0);
 268         }
 269         setsid ();
 270         umask (007);
 271         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 272
 273         signal(SIGTERM, InspIRCd::SetSignal);
 274
 275         rlimit rl;
 276         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 277         {
 278                 this->Logs->Log("STARTUP",DEFAULT,"Failed to getrlimit()!");
 279                 return false;
 280         }
 281         else
 282         {
 283                 rl.rlim_cur = rl.rlim_max;
 284                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 285                         this->Logs->Log("STARTUP",DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 286         }
 287
 288         return true;
 289 #endif
 290 }
 291
 292 void InspIRCd::WritePID(const std::string &filename)
 293 {
 294         std::string fname = (filename.empty() ? "inspircd.pid" : filename);
 295         std::replace(fname.begin(), fname.end(), '\\', '/');
 296         if ((fname[0] != '/') && (!Config->StartsWithWindowsDriveLetter(filename)))
 297         {
 298                 std::string::size_type pos;
 299                 std::string confpath = this->ConfigFileName;
 300                 if ((pos = confpath.rfind("/")) != std::string::npos)
 301                 {
 302                         /* Leaves us with just the path */
 303                         fname = confpath.substr(0, pos) + std::string("/") + fname;
 304                 }
 305         }
 306         std::ofstream outfile(fname.c_str());
 307         if (outfile.is_open())
 308         {
 309                 outfile << getpid();
 310                 outfile.close();
 311         }
 312         else
 313         {
 314                 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
 315                 this->Logs->Log("STARTUP",DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
 316                 Exit(EXIT_STATUS_PID);
 317         }
 318 }
 319
 320 InspIRCd::InspIRCd(int argc, char** argv) :
 321          /* Functor initialisation. Note that the ordering here is very important.
 322           *
 323           * THIS MUST MATCH ORDER OF DECLARATION OF THE HandleWhateverFunc classes
 324           * within class InspIRCd.
 325           */
 326          HandleProcessUser(this),
 327          HandleIsNick(this),
 328          HandleIsIdent(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          FloodQuitUser(&HandleFloodQuitUser)
 346
 347 {
 348 #ifdef WIN32
 349         // Strict, frequent checking of memory on debug builds
 350         _CrtSetDbgFlag ( _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
 351
 352         // Avoid erroneous frees on early exit
 353         WindowsIPC = 0;
 354 #endif
 355
 356         ServerInstance = this;
 357
 358         Extensible::Register(&User::NICKForced);
 359         Extensible::Register(&User::OperQuit);
 360
 361         FailedPortList pl;
 362         int do_version = 0, do_nofork = 0, do_debug = 0,
 363             do_nolog = 0, do_root = 0, do_testsuite = 0;    /* flag variables */
 364         int c = 0;
 365
 366         // Initialize so that if we exit before proper initialization they're not deleted
 367         this->Logs = 0;
 368         this->Threads = 0;
 369         this->PI = 0;
 370         this->Users = 0;
 371         this->chanlist = 0;
 372         this->Config = 0;
 373         this->SNO = 0;
 374         this->BanCache = 0;
 375         this->Modules = 0;
 376         this->stats = 0;
 377         this->Timers = 0;
 378         this->Parser = 0;
 379         this->XLines = 0;
 380         this->Modes = 0;
 381         this->Res = 0;
 382         this->ConfigThread = NULL;
 383
 384         // Initialise TIME
 385         this->TIME = time(NULL);
 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         this->Threads = new ThreadEngine(this);
 395
 396         /* Default implementation does nothing */
 397         this->PI = new ProtocolInterface(this);
 398
 399         this->s_signal = 0;
 400
 401         // Create base manager classes early, so nothing breaks
 402         this->Users = new UserManager(this);
 403
 404         this->Users->unregistered_count = 0;
 405
 406         this->Users->clientlist = new user_hash();
 407         this->Users->uuidlist = new user_hash();
 408         this->chanlist = new chan_hash();
 409
 410         this->Config = new ServerConfig(this);
 411         this->SNO = new SnomaskManager(this);
 412         this->BanCache = new BanCacheManager(this);
 413         this->Modules = new ModuleManager();
 414         this->stats = new serverstats();
 415         this->Timers = new TimerManager(this);
 416         this->Parser = new CommandParser(this);
 417         this->XLines = new XLineManager(this);
 418
 419         this->Config->argv = argv;
 420         this->Config->argc = argc;
 421
 422         if (chdir(Config->GetFullProgDir().c_str()))
 423         {
 424                 printf("Unable to change to my directory: %s\nAborted.", strerror(errno));
 425                 exit(0);
 426         }
 427
 428         this->Config->opertypes.clear();
 429         this->Config->operclass.clear();
 430
 431         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 432         srand(this->TIME);
 433
 434         *this->LogFileName = 0;
 435         strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);
 436
 437         struct option longopts[] =
 438         {
 439                 { "nofork",     no_argument,            &do_nofork,     1       },
 440                 { "logfile",    required_argument,      NULL,           'f'     },
 441                 { "config",     required_argument,      NULL,           'c'     },
 442                 { "debug",      no_argument,            &do_debug,      1       },
 443                 { "nolog",      no_argument,            &do_nolog,      1       },
 444                 { "runasroot",  no_argument,            &do_root,       1       },
 445                 { "version",    no_argument,            &do_version,    1       },
 446                 { "testsuite",  no_argument,            &do_testsuite,  1       },
 447                 { 0, 0, 0, 0 }
 448         };
 449
 450         int index;
 451         while ((c = getopt_long_only(argc, argv, ":f:", longopts, &index)) != -1)
 452         {
 453                 switch (c)
 454                 {
 455                         case 'f':
 456                                 /* Log filename was set */
 457                                 strlcpy(LogFileName, optarg, MAXBUF);
 458                         break;
 459                         case 'c':
 460                                 /* Config filename was set */
 461                                 strlcpy(ConfigFileName, optarg, MAXBUF);
 462                         break;
 463                         case 0:
 464                                 /* getopt_long_only() set an int variable, just keep going */
 465                         break;
 466                         case '?':
 467                                 /* Unknown parameter */
 468                         default:
 469                                 /* Fall through to handle other weird values too */
 470                                 printf("Unknown parameter '%s'\n", argv[optind-1]);
 471                                 printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>]\n%*s[--runasroot] [--version] [--config <config>] [--testsuite]\n", argv[0], static_cast<int>(8+strlen(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         Config->MyExecutable = argv[0];
 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         this->Modes = new ModeParser(this);
 543
 544         if (!do_root)
 545                 this->CheckRoot();
 546         else
 547         {
 548                 printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");
 549                 printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");
 550                 printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");
 551                 printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");
 552                 printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");
 553                 printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");
 554                 printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");
 555                 printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");
 556                 sleep(20);
 557         }
 558
 559         this->SetSignals();
 560
 561         if (!Config->nofork)
 562         {
 563                 if (!this->DaemonSeed())
 564                 {
 565                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 566                         Logs->Log("STARTUP", DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
 567                         Exit(EXIT_STATUS_FORK);
 568                 }
 569         }
 570
 571         SE->RecoverFromFork();
 572
 573         /* During startup we don't actually initialize this
 574          * in the thread engine.
 575          */
 576         this->Config->Read();
 577         this->Config->Apply(NULL, "");
 578         Logs->OpenFileLogs();
 579
 580         this->Res = new DNS(this);
 581
 582         this->AddServerName(Config->ServerName);
 583
 584         /*
 585          * Initialise SID/UID.
 586          * For an explanation as to exactly how this works, and why it works this way, see GetUID().
 587          *   -- w00t
 588          */
 589         if (!*Config->sid)
 590         {
 591                 // Generate one
 592                 size_t sid = 0;
 593
 594                 for (const char* x = Config->ServerName; *x; ++x)
 595                         sid = 5 * sid + *x;
 596                 for (const char* y = Config->ServerDesc; *y; ++y)
 597                         sid = 5 * sid + *y;
 598                 sid = sid % 999;
 599
 600                 Config->sid[0] = (char)(sid / 100 + 48);
 601                 Config->sid[1] = (char)(((sid / 10) % 10) + 48);
 602                 Config->sid[2] = (char)(sid % 10 + 48);
 603                 Config->sid[3] = '\0';
 604         }
 605
 606         /* set up fake client again this time with the correct uid */
 607         this->FakeClient = new FakeUser(this, "!");
 608         this->FakeClient->SetFakeServer(Config->ServerName);
 609
 610         // Get XLine to do it's thing.
 611         this->XLines->CheckELines();
 612         this->XLines->ApplyLines();
 613
 614         int bounditems = BindPorts(pl);
 615
 616         printf("\n");
 617
 618         this->Modules->LoadAll();
 619
 620         /* Just in case no modules were loaded - fix for bug #101 */
 621         this->BuildISupport();
 622         Config->ApplyDisabledCommands(Config->DisabledCommands);
 623
 624         if (!pl.empty())
 625         {
 626                 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n",
 627                         bounditems, bounditems + (int)pl.size());
 628                 printf("The following port(s) failed to bind:\n");
 629                 printf("Hint: Try using a public IP instead of blank or *\n\n");
 630                 int j = 1;
 631                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 632                 {
 633                         printf("%d.\tAddress: %s\tReason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
 634                 }
 635         }
 636
 637         printf("\nInspIRCd is now running as '%s'[%s] with %d max open sockets\n", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 638
 639 #ifndef WINDOWS
 640         if (!Config->nofork)
 641         {
 642                 if (kill(getppid(), SIGTERM) == -1)
 643                 {
 644                         printf("Error killing parent process: %s\n",strerror(errno));
 645                         Logs->Log("STARTUP", DEFAULT, "Error killing parent process: %s",strerror(errno));
 646                 }
 647         }
 648
 649         if (isatty(0) && isatty(1) && isatty(2))
 650         {
 651                 /* We didn't start from a TTY, we must have started from a background process -
 652                  * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
 653                  * close stdin/stdout
 654                  */
 655                 if ((!do_nofork) && (!do_testsuite))
 656                 {
 657                         fclose(stdin);
 658                         fclose(stderr);
 659                         fclose(stdout);
 660                 }
 661                 else
 662                 {
 663                         Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
 664                 }
 665         }
 666 #else
 667         WindowsIPC = new IPC(this);
 668         if(!Config->nofork)
 669         {
 670                 WindowsForkKillOwner(this);
 671                 FreeConsole();
 672         }
 673         /* Set win32 service as running, if we are running as a service */
 674         SetServiceRunning();
 675 #endif
 676
 677         Logs->Log("STARTUP", DEFAULT, "Startup complete as '%s'[%s], %d max open sockets", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 678
 679 #ifndef WIN32
 680         if (*(this->Config->SetGroup))
 681         {
 682                 int ret;
 683
 684                 // setgroups
 685                 ret = setgroups(0, NULL);
 686
 687                 if (ret == -1)
 688                 {
 689                         this->Logs->Log("SETGROUPS", DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
 690                         this->QuickExit(0);
 691                 }
 692
 693                 // setgid
 694                 struct group *g;
 695
 696                 errno = 0;
 697                 g = getgrnam(this->Config->SetGroup);
 698
 699                 if (!g)
 700                 {
 701                         this->Logs->Log("SETGUID", DEFAULT, "getgrnam() failed (bad user?): %s", strerror(errno));
 702                         this->QuickExit(0);
 703                 }
 704
 705                 ret = setgid(g->gr_gid);
 706
 707                 if (ret == -1)
 708                 {
 709                         this->Logs->Log("SETGUID", DEFAULT, "setgid() failed (bad user?): %s", strerror(errno));
 710                         this->QuickExit(0);
 711                 }
 712         }
 713
 714         if (*(this->Config->SetUser))
 715         {
 716                 // setuid
 717                 struct passwd *u;
 718
 719                 errno = 0;
 720                 u = getpwnam(this->Config->SetUser);
 721
 722                 if (!u)
 723                 {
 724                         this->Logs->Log("SETGUID", DEFAULT, "getpwnam() failed (bad user?): %s", strerror(errno));
 725                         this->QuickExit(0);
 726                 }
 727
 728                 int ret = setuid(u->pw_uid);
 729
 730                 if (ret == -1)
 731                 {
 732                         this->Logs->Log("SETGUID", DEFAULT, "setuid() failed (bad user?): %s", strerror(errno));
 733                         this->QuickExit(0);
 734                 }
 735         }
 736 #endif
 737
 738         this->WritePID(Config->PID);
 739 }
 740
 741 int InspIRCd::Run()
 742 {
 743         /* See if we're supposed to be running the test suite rather than entering the mainloop */
 744         if (Config->TestSuite)
 745         {
 746                 TestSuite* ts = new TestSuite(this);
 747                 delete ts;
 748                 Exit(0);
 749         }
 750
 751         while (true)
 752         {
 753 #ifndef WIN32
 754                 static rusage ru;
 755 #else
 756                 static time_t uptime;
 757                 static struct tm * stime;
 758                 static char window_title[100];
 759 #endif
 760
 761                 /* Check if there is a config thread which has finished executing but has not yet been freed */
 762                 if (this->ConfigThread && this->ConfigThread->IsDone())
 763                 {
 764                         /* Rehash has completed */
 765                         this->Logs->Log("CONFIG",DEBUG,"Detected ConfigThread exiting, tidying up...");
 766
 767                         this->ConfigThread->Finish();
 768
 769                         ConfigThread->join();
 770                         delete ConfigThread;
 771                         ConfigThread = NULL;
 772                 }
 773
 774                 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 775                  * Once per loop iteration is pleanty.
 776                  */
 777                 OLDTIME = TIME;
 778                 TIME = time(NULL);
 779
 780                 /* Run background module timers every few seconds
 781                  * (the docs say modules shouldnt rely on accurate
 782                  * timing using this event, so we dont have to
 783                  * time this exactly).
 784                  */
 785                 if (TIME != OLDTIME)
 786                 {
 787                         /* Allow a buffer of two seconds drift on this so that ntpdate etc dont harass admins */
 788                         if (TIME < OLDTIME - 2)
 789                         {
 790                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %lu secs.", (unsigned long)OLDTIME-TIME);
 791                         }
 792                         else if (TIME > OLDTIME + 2)
 793                         {
 794                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is jumping FORWARDS! Clock skipped %lu secs.", (unsigned long)TIME - OLDTIME);
 795                         }
 796
 797                         if ((TIME % 3600) == 0)
 798                         {
 799                                 this->RehashUsersAndChans();
 800                                 FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
 801                         }
 802
 803                         Timers->TickTimers(TIME);
 804                         this->DoBackgroundUserStuff();
 805
 806                         if ((TIME % 5) == 0)
 807                         {
 808                                 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 809                                 SNO->FlushSnotices();
 810                         }
 811 #ifndef WIN32
 812                         /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */
 813                         if (!getrusage(RUSAGE_SELF, &ru))
 814                         {
 815                                 gettimeofday(&this->stats->LastSampled, NULL);
 816                                 this->stats->LastCPU = ru.ru_utime;
 817                         }
 818 #else
 819                         WindowsIPC->Check();
 820 #endif
 821                 }
 822
 823                 /* Call the socket engine to wait on the active
 824                  * file descriptors. The socket engine has everything's
 825                  * descriptors in its list... dns, modules, users,
 826                  * servers... so its nice and easy, just one call.
 827                  * This will cause any read or write events to be
 828                  * dispatched to their handlers.
 829                  */
 830                 this->SE->DispatchEvents();
 831
 832                 /* if any users were quit, take them out */
 833                 this->GlobalCulls.Apply();
 834
 835                 /* If any inspsockets closed, remove them */
 836                 this->BufferedSocketCull();
 837
 838                 if (this->s_signal)
 839                 {
 840                         this->SignalHandler(s_signal);
 841                         this->s_signal = 0;
 842                 }
 843         }
 844
 845         return 0;
 846 }
 847
 848 void InspIRCd::BufferedSocketCull()
 849 {
 850         for (std::map<BufferedSocket*,BufferedSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)
 851         {
 852                 this->Logs->Log("MISC",DEBUG,"Cull socket");
 853                 SE->DelFd(x->second);
 854                 x->second->Close();
 855                 delete x->second;
 856         }
 857         SocketCull.clear();
 858 }
 859
 860 /**********************************************************************************/
 861
 862 /**
 863  * An ircd in five lines! bwahahaha. ahahahahaha. ahahah *cough*.
 864  */
 865
 866 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 867  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 868  * registration timeout maximum seconds)
 869  */
 870 bool InspIRCd::AllModulesReportReady(User* user)
 871 {
 872         ModResult res;
 873         FIRST_MOD_RESULT(this, OnCheckReady, res, (user));
 874         return (res == MOD_RES_PASSTHRU);
 875 }
 876
 877 time_t InspIRCd::Time()
 878 {
 879         return TIME;
 880 }
 881
 882 void InspIRCd::SetSignal(int signal)
 883 {
 884         *mysig = signal;
 885 }
 886
 887 /* On posix systems, the flow of the program starts right here, with
 888  * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
 889  * defines smain() and the real main() is in the service code under
 890  * win32service.cpp. This allows the service control manager to control
 891  * the process where we are running as a windows service.
 892  */
 893 ENTRYPOINT
 894 {
 895         new InspIRCd(argc, argv);
 896         mysig = &ServerInstance->s_signal;
 897         ServerInstance->Run();
 898         delete ServerInstance;
 899         return 0;
 900 }