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
  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 void InspIRCd::Cleanup()
  86 {
  87         if (Config)
  88         {
  89                 for (unsigned int i = 0; i < Config->ports.size(); i++)
  90                 {
  91                         /* This calls the constructor and closes the listening socket */
  92                         delete Config->ports[i];
  93                 }
  94
  95                 Config->ports.clear();
  96         }
  97
  98         /* Close all client sockets, or the new process inherits them */
  99         for (std::vector<User*>::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++)
 100         {
 101                 this->Users->QuitUser((*i), "Server shutdown");
 102                 (*i)->CloseSocket();
 103         }
 104
 105         /* We do this more than once, so that any service providers get a
 106          * chance to be unhooked by the modules using them, but then get
 107          * a chance to be removed themsleves.
 108          *
 109          * XXX there may be a better way to do this with 1.2
 110          */
 111         for (int tries = 0; tries < 3; tries++)
 112         {
 113                 std::vector<std::string> module_names = Modules->GetAllModuleNames(0);
 114                 for (std::vector<std::string>::iterator k = module_names.begin(); k != module_names.end(); ++k)
 115                 {
 116                         /* Unload all modules, so they get a chance to clean up their listeners */
 117                         this->Modules->Unload(k->c_str());
 118                 }
 119         }
 120         /* Remove core commands */
 121         Parser->RemoveCommands("<core>");
 122
 123         /* Cleanup Server Names */
 124         for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)
 125                 delete (*itr);
 126
 127         /* Delete objects dynamically allocated in constructor
 128          * (destructor would be more appropriate, but we're likely exiting)
 129          */
 130
 131         // Must be deleted before modes as it decrements modelines
 132         if (this->Users)
 133         {
 134                 delete this->Users;
 135                 this->Users = 0;
 136         }
 137
 138         if (this->Modes)
 139         {
 140                 delete this->Modes;
 141                 this->Modes = 0;
 142         }
 143
 144         if (this->XLines)
 145         {
 146                 delete this->XLines;
 147                 this->XLines = 0;
 148         }
 149
 150         if (this->Parser)
 151         {
 152                 delete this->Parser;
 153                 this->Parser = 0;
 154
 155         if (this->stats)
 156         {
 157                 delete this->stats;
 158                 this->stats = 0;
 159         }
 160
 161         if (this->Modules)
 162         {
 163                 delete this->Modules;
 164                 this->Modules = 0;
 165         }
 166
 167         if (this->BanCache)
 168                 delete this->BanCache;
 169                 this->BanCache = 0;
 170         }
 171
 172         if (this->SNO)
 173         {
 174                 delete this->SNO;
 175                 this->SNO = 0;
 176         }
 177
 178         if (this->Config)
 179         {
 180                 delete this->Config;
 181                 this->Config = 0;
 182         }
 183
 184         if (this->Res)
 185         {
 186                 delete this->Res;
 187                 this->Res = 0;
 188         }
 189
 190         if (this->chanlist)
 191         {
 192                 delete chanlist;
 193                 chanlist = 0;
 194         }
 195
 196         if (this->PI)
 197         {
 198                 delete this->PI;
 199                 this->PI = 0;
 200         }
 201
 202         if (this->Threads)
 203         {
 204                 delete this->Threads;
 205                 this->Threads = 0;
 206         }
 207
 208         /* Needs to be deleted after Res, DNS has a timer */
 209         if (this->Timers)
 210         {
 211                 delete this->Timers;
 212                 this->Timers = 0;
 213         }
 214
 215         /* Close logging */
 216         this->Logs->CloseLogs();
 217
 218         if (this->Logs)
 219         {
 220                 delete this->Logs;
 221                 this->Logs = 0;
 222         }
 223
 224         delete RehashFinishMutex;
 225 }
 226
 227 void InspIRCd::Restart(const std::string &reason)
 228 {
 229         /* SendError flushes each client's queue,
 230          * regardless of writeability state
 231          */
 232         this->SendError(reason);
 233
 234         /* Figure out our filename (if theyve renamed it, we're boned) */
 235         std::string me;
 236
 237 #ifdef WINDOWS
 238         char module[MAX_PATH];
 239         if (GetModuleFileName(NULL, module, MAX_PATH))
 240                 me = module;
 241 #else
 242         me = Config->MyDir + "/inspircd";
 243 #endif
 244
 245         char** argv = Config->argv;
 246
 247         this->Cleanup();
 248
 249         if (execv(me.c_str(), argv) == -1)
 250         {
 251                 /* Will raise a SIGABRT if not trapped */
 252                 throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));
 253         }
 254 }
 255
 256 void InspIRCd::ResetMaxBans()
 257 {
 258         for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)
 259                 i->second->ResetMaxBans();
 260 }
 261
 262 /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')
 263  * we must occasionally rehash the hash (yes really).
 264  * We do this by copying the entries from the old hash to a new hash, causing all
 265  * empty buckets to be weeded out of the hash. We dont do this on a timer, as its
 266  * very expensive, so instead we do it when the user types /REHASH and expects a
 267  * short delay anyway.
 268  */
 269 void InspIRCd::RehashUsersAndChans()
 270 {
 271         user_hash* old_users = this->Users->clientlist;
 272         user_hash* old_uuid  = this->Users->uuidlist;
 273         chan_hash* old_chans = this->chanlist;
 274
 275         this->Users->clientlist = new user_hash();
 276         this->Users->uuidlist = new user_hash();
 277         this->chanlist = new chan_hash();
 278
 279         for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)
 280                 this->Users->clientlist->insert(*n);
 281
 282         delete old_users;
 283
 284         for (user_hash::const_iterator n = old_uuid->begin(); n != old_uuid->end(); n++)
 285                 this->Users->uuidlist->insert(*n);
 286
 287         delete old_uuid;
 288
 289         for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)
 290                 this->chanlist->insert(*n);
 291
 292         delete old_chans;
 293 }
 294
 295 void InspIRCd::SetSignals()
 296 {
 297 #ifndef WIN32
 298         signal(SIGALRM, SIG_IGN);
 299         signal(SIGHUP, InspIRCd::SetSignal);
 300         signal(SIGPIPE, SIG_IGN);
 301         signal(SIGCHLD, SIG_IGN);
 302 #endif
 303         signal(SIGTERM, InspIRCd::SetSignal);
 304 }
 305
 306 void InspIRCd::QuickExit(int status)
 307 {
 308         exit(0);
 309 }
 310
 311 bool InspIRCd::DaemonSeed()
 312 {
 313 #ifdef WINDOWS
 314         printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());
 315         return true;
 316 #else
 317         signal(SIGTERM, InspIRCd::QuickExit);
 318
 319         int childpid;
 320         if ((childpid = fork ()) < 0)
 321                 return false;
 322         else if (childpid > 0)
 323         {
 324                 /* We wait here for the child process to kill us,
 325                  * so that the shell prompt doesnt come back over
 326                  * the output.
 327                  * Sending a kill with a signal of 0 just checks
 328                  * if the child pid is still around. If theyre not,
 329                  * they threw an error and we should give up.
 330                  */
 331                 while (kill(childpid, 0) != -1)
 332                         sleep(1);
 333                 exit(0);
 334         }
 335         setsid ();
 336         umask (007);
 337         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 338
 339         signal(SIGTERM, InspIRCd::SetSignal);
 340
 341         rlimit rl;
 342         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 343         {
 344                 this->Logs->Log("STARTUP",DEFAULT,"Failed to getrlimit()!");
 345                 return false;
 346         }
 347         else
 348         {
 349                 rl.rlim_cur = rl.rlim_max;
 350                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 351                         this->Logs->Log("STARTUP",DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 352         }
 353
 354         return true;
 355 #endif
 356 }
 357
 358 void InspIRCd::WritePID(const std::string &filename)
 359 {
 360         std::string fname = (filename.empty() ? "inspircd.pid" : filename);
 361         std::replace(fname.begin(), fname.end(), '\\', '/');
 362         if ((fname[0] != '/') && (!Config->StartsWithWindowsDriveLetter(filename)))
 363         {
 364                 std::string::size_type pos;
 365                 std::string confpath = this->ConfigFileName;
 366                 if ((pos = confpath.rfind("/")) != std::string::npos)
 367                 {
 368                         /* Leaves us with just the path */
 369                         fname = confpath.substr(0, pos) + std::string("/") + fname;
 370                 }
 371         }
 372         std::ofstream outfile(fname.c_str());
 373         if (outfile.is_open())
 374         {
 375                 outfile << getpid();
 376                 outfile.close();
 377         }
 378         else
 379         {
 380                 printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());
 381                 this->Logs->Log("STARTUP",DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());
 382                 Exit(EXIT_STATUS_PID);
 383         }
 384 }
 385
 386 InspIRCd::InspIRCd(int argc, char** argv)
 387         : GlobalCulls(this),
 388
 389          /* Functor initialisation. Note that the ordering here is very important.
 390           *
 391           * THIS MUST MATCH ORDER OF DECLARATION OF THE HandleWhateverFunc classes
 392           * within class InspIRCd.
 393           */
 394          HandleProcessUser(this),
 395          HandleIsNick(this),
 396          HandleIsIdent(this),
 397          HandleFindDescriptor(this),
 398          HandleFloodQuitUser(this),
 399          HandleIsChannel(this),
 400          HandleIsSID(this),
 401          HandleRehash(this),
 402
 403          /* Functor pointer initialisation. Must match the order of the list above
 404           *
 405           * THIS MUST MATCH THE ORDER OF DECLARATION OF THE FUNCTORS, e.g. the methods
 406           * themselves within the class.
 407           */
 408          ProcessUser(&HandleProcessUser),
 409          IsChannel(&HandleIsChannel),
 410          IsSID(&HandleIsSID),
 411          Rehash(&HandleRehash),
 412          IsNick(&HandleIsNick),
 413          IsIdent(&HandleIsIdent),
 414          FindDescriptor(&HandleFindDescriptor),
 415          FloodQuitUser(&HandleFloodQuitUser)
 416
 417 {
 418 #ifdef WIN32
 419         // Strict, frequent checking of memory on debug builds
 420         _CrtSetDbgFlag ( _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
 421
 422         // Avoid erroneous frees on early exit
 423         WindowsIPC = 0;
 424 #endif
 425         int found_ports = 0;
 426         FailedPortList pl;
 427         int do_version = 0, do_nofork = 0, do_debug = 0,
 428             do_nolog = 0, do_root = 0, do_testsuite = 0;    /* flag variables */
 429         char c = 0;
 430
 431         // Initialize so that if we exit before proper initialization they're not deleted
 432         this->Logs = 0;
 433         this->Threads = 0;
 434         this->PI = 0;
 435         this->Users = 0;
 436         this->chanlist = 0;
 437         this->Config = 0;
 438         this->SNO = 0;
 439         this->BanCache = 0;
 440         this->Modules = 0;
 441         this->stats = 0;
 442         this->Timers = 0;
 443         this->Parser = 0;
 444         this->XLines = 0;
 445         this->Modes = 0;
 446         this->Res = 0;
 447
 448         // Initialise TIME
 449         this->TIME = time(NULL);
 450
 451         memset(&server, 0, sizeof(server));
 452         memset(&client, 0, sizeof(client));
 453
 454         // This must be created first, so other parts of Insp can use it while starting up
 455         this->Logs = new LogManager(this);
 456
 457         SocketEngineFactory* SEF = new SocketEngineFactory();
 458         SE = SEF->Create(this);
 459         delete SEF;
 460
 461         ThreadEngineFactory* tef = new ThreadEngineFactory();
 462         this->Threads = tef->Create(this);
 463         delete tef;
 464         this->Mutexes = new MutexFactory(this);
 465
 466         /* Default implementation does nothing */
 467         this->PI = new ProtocolInterface(this);
 468
 469         this->s_signal = 0;
 470
 471         // Create base manager classes early, so nothing breaks
 472         this->Users = new UserManager(this);
 473
 474         this->Users->unregistered_count = 0;
 475
 476         this->Users->clientlist = new user_hash();
 477         this->Users->uuidlist = new user_hash();
 478         this->chanlist = new chan_hash();
 479
 480         this->Config = new ServerConfig(this);
 481         this->SNO = new SnomaskManager(this);
 482         this->BanCache = new BanCacheManager(this);
 483         this->Modules = new ModuleManager(this);
 484         this->stats = new serverstats();
 485         this->Timers = new TimerManager(this);
 486         this->Parser = new CommandParser(this);
 487         this->XLines = new XLineManager(this);
 488
 489         this->Config->argv = argv;
 490         this->Config->argc = argc;
 491
 492         if (chdir(Config->GetFullProgDir().c_str()))
 493         {
 494                 printf("Unable to change to my directory: %s\nAborted.", strerror(errno));
 495                 exit(0);
 496         }
 497
 498         this->Config->opertypes.clear();
 499         this->Config->operclass.clear();
 500
 501         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 502         srand(this->TIME);
 503
 504         *this->LogFileName = 0;
 505         strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);
 506
 507         struct option longopts[] =
 508         {
 509                 { "nofork",     no_argument,            &do_nofork,     1       },
 510                 { "logfile",    required_argument,      NULL,           'f'     },
 511                 { "config",     required_argument,      NULL,           'c'     },
 512                 { "debug",      no_argument,            &do_debug,      1       },
 513                 { "nolog",      no_argument,            &do_nolog,      1       },
 514                 { "runasroot",  no_argument,            &do_root,       1       },
 515                 { "version",    no_argument,            &do_version,    1       },
 516                 { "testsuite",  no_argument,            &do_testsuite,  1       },
 517                 { 0, 0, 0, 0 }
 518         };
 519
 520         while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1)
 521         {
 522                 switch (c)
 523                 {
 524                         case 'f':
 525                                 /* Log filename was set */
 526                                 strlcpy(LogFileName, optarg, MAXBUF);
 527                         break;
 528                         case 'c':
 529                                 /* Config filename was set */
 530                                 strlcpy(ConfigFileName, optarg, MAXBUF);
 531                         break;
 532                         case 0:
 533                                 /* getopt_long_only() set an int variable, just keep going */
 534                         break;
 535                         default:
 536                                 /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */
 537                                 printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>]\n\
 538                                                   [--runasroot] [--version] [--config <config>] [--testsuite]\n", argv[0]);
 539                                 Exit(EXIT_STATUS_ARGV);
 540                         break;
 541                 }
 542         }
 543
 544         if (do_testsuite)
 545                 do_nofork = do_debug = true;
 546
 547         if (do_version)
 548         {
 549                 printf("\n%s r%s\n", VERSION, REVISION);
 550                 Exit(EXIT_STATUS_NOERROR);
 551         }
 552
 553 #ifdef WIN32
 554
 555         // Handle forking
 556         if(!do_nofork)
 557         {
 558                 DWORD ExitCode = WindowsForkStart(this);
 559                 if(ExitCode)
 560                         exit(ExitCode);
 561         }
 562
 563         // Set up winsock
 564         WSADATA wsadata;
 565         WSAStartup(MAKEWORD(2,0), &wsadata);
 566         ChangeWindowsSpecificPointers(this);
 567 #endif
 568         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 569
 570         /* Set the finished argument values */
 571         Config->nofork = do_nofork;
 572         Config->forcedebug = do_debug;
 573         Config->writelog = !do_nolog;
 574         Config->TestSuite = do_testsuite;
 575
 576         if (!this->OpenLog(argv, argc))
 577         {
 578                 printf("ERROR: Could not open logfile %s: %s\n\n", Config->logpath.c_str(), strerror(errno));
 579                 Exit(EXIT_STATUS_LOG);
 580         }
 581
 582         if (!ServerConfig::FileExists(this->ConfigFileName))
 583         {
 584                 printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName);
 585                 this->Logs->Log("STARTUP",DEFAULT,"Unable to open config file %s", this->ConfigFileName);
 586                 Exit(EXIT_STATUS_CONFIG);
 587         }
 588
 589         printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
 590         printf_c("(C) InspIRCd Development Team.\033[0m\n\n");
 591         printf_c("Developers:\n");
 592         printf_c("\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special\n");
 593         printf_c("\t\033[1;32mpippijn, peavey, aquanight, fez, psychon, dz\033[0m\n\n");
 594         printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
 595
 596         Config->ClearStack();
 597
 598         this->Modes = new ModeParser(this);
 599
 600         if (!do_root)
 601                 this->CheckRoot();
 602         else
 603         {
 604                 printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");
 605                 printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");
 606                 printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");
 607                 printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");
 608                 printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");
 609                 printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");
 610                 printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");
 611                 printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");
 612                 sleep(20);
 613         }
 614
 615         this->SetSignals();
 616
 617         if (!Config->nofork)
 618         {
 619                 if (!this->DaemonSeed())
 620                 {
 621                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 622                         Logs->Log("STARTUP", DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
 623                         Exit(EXIT_STATUS_FORK);
 624                 }
 625         }
 626
 627         SE->RecoverFromFork();
 628
 629         /* During startup we don't actually initialize this
 630          * in the thread engine.
 631          */
 632         this->ConfigThread = new ConfigReaderThread(this, true, "");
 633         ConfigThread->Run();
 634         delete ConfigThread;
 635         this->ConfigThread = NULL;
 636         /* Switch over logfiles */
 637         Logs->OpenFileLogs();
 638
 639         /** Note: This is safe, the method checks for user == NULL */
 640         this->Parser->SetupCommandTable();
 641
 642         this->Res = new DNS(this);
 643
 644         this->AddServerName(Config->ServerName);
 645
 646         /*
 647          * Initialise SID/UID.
 648          * For an explanation as to exactly how this works, and why it works this way, see GetUID().
 649          *   -- w00t
 650          */
 651         if (!*Config->sid)
 652         {
 653                 // Generate one
 654                 size_t sid = 0;
 655
 656                 for (const char* x = Config->ServerName; *x; ++x)
 657                         sid = 5 * sid + *x;
 658                 for (const char* y = Config->ServerDesc; *y; ++y)
 659                         sid = 5 * sid + *y;
 660                 sid = sid % 999;
 661
 662                 Config->sid[0] = (char)(sid / 100 + 48);
 663                 Config->sid[1] = (char)(((sid / 10) % 10) + 48);
 664                 Config->sid[2] = (char)(sid % 10 + 48);
 665                 Config->sid[3] = '\0';
 666         }
 667
 668         /* set up fake client again this time with the correct uid */
 669         this->FakeClient = new User(this, "#INVALID");
 670         this->FakeClient->SetFd(FD_MAGIC_NUMBER);
 671
 672         // Get XLine to do it's thing.
 673         this->XLines->CheckELines();
 674         this->XLines->ApplyLines();
 675
 676         CheckDie();
 677         int bounditems = BindPorts(true, found_ports, pl);
 678
 679         printf("\n");
 680
 681         this->Modules->LoadAll();
 682
 683         /* Just in case no modules were loaded - fix for bug #101 */
 684         this->BuildISupport();
 685         InitializeDisabledCommands(Config->DisabledCommands, this);
 686
 687         if (Config->ports.size() != (unsigned int)found_ports)
 688         {
 689                 printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports);
 690                 printf("The following port(s) failed to bind:\n");
 691                 printf("Hint: Try using a public IP instead of blank or *\n\n");
 692                 int j = 1;
 693                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 694                 {
 695                         printf("%d.\tAddress: %s\tReason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
 696                 }
 697         }
 698
 699         printf("\nInspIRCd is now running as '%s'[%s] with %d max open sockets\n", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 700
 701 #ifndef WINDOWS
 702         if (!Config->nofork)
 703         {
 704                 if (kill(getppid(), SIGTERM) == -1)
 705                 {
 706                         printf("Error killing parent process: %s\n",strerror(errno));
 707                         Logs->Log("STARTUP", DEFAULT, "Error killing parent process: %s",strerror(errno));
 708                 }
 709         }
 710
 711         if (isatty(0) && isatty(1) && isatty(2))
 712         {
 713                 /* We didn't start from a TTY, we must have started from a background process -
 714                  * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
 715                  * close stdin/stdout
 716                  */
 717                 if ((!do_nofork) && (!do_testsuite))
 718                 {
 719                         fclose(stdin);
 720                         fclose(stderr);
 721                         fclose(stdout);
 722                 }
 723                 else
 724                 {
 725                         Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
 726                 }
 727         }
 728 #else
 729         WindowsIPC = new IPC(this);
 730         if(!Config->nofork)
 731         {
 732                 WindowsForkKillOwner(this);
 733                 FreeConsole();
 734         }
 735         /* Set win32 service as running, if we are running as a service */
 736         SetServiceRunning();
 737 #endif
 738
 739         Logs->Log("STARTUP", DEFAULT, "Startup complete as '%s'[%s], %d max open sockets", Config->ServerName,Config->GetSID().c_str(), SE->GetMaxFds());
 740
 741 #ifndef WIN32
 742         if (*(this->Config->SetGroup))
 743         {
 744                 int ret;
 745
 746                 // setgroups
 747                 ret = setgroups(0, NULL);
 748
 749                 if (ret == -1)
 750                 {
 751                         this->Logs->Log("SETGROUPS", DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
 752                         this->QuickExit(0);
 753                 }
 754
 755                 // setgid
 756                 struct group *g;
 757
 758                 errno = 0;
 759                 g = getgrnam(this->Config->SetGroup);
 760
 761                 if (!g)
 762                 {
 763                         this->Logs->Log("SETGUID", DEFAULT, "getgrnam() failed (bad user?): %s", strerror(errno));
 764                         this->QuickExit(0);
 765                 }
 766
 767                 ret = setgid(g->gr_gid);
 768
 769                 if (ret == -1)
 770                 {
 771                         this->Logs->Log("SETGUID", DEFAULT, "setgid() failed (bad user?): %s", strerror(errno));
 772                         this->QuickExit(0);
 773                 }
 774         }
 775
 776         if (*(this->Config->SetUser))
 777         {
 778                 // setuid
 779                 struct passwd *u;
 780
 781                 errno = 0;
 782                 u = getpwnam(this->Config->SetUser);
 783
 784                 if (!u)
 785                 {
 786                         this->Logs->Log("SETGUID", DEFAULT, "getpwnam() failed (bad user?): %s", strerror(errno));
 787                         this->QuickExit(0);
 788                 }
 789
 790                 int ret = setuid(u->pw_uid);
 791
 792                 if (ret == -1)
 793                 {
 794                         this->Logs->Log("SETGUID", DEFAULT, "setuid() failed (bad user?): %s", strerror(errno));
 795                         this->QuickExit(0);
 796                 }
 797         }
 798 #endif
 799
 800         this->WritePID(Config->PID);
 801 }
 802
 803 int InspIRCd::Run()
 804 {
 805         /* See if we're supposed to be running the test suite rather than entering the mainloop */
 806         if (Config->TestSuite)
 807         {
 808                 TestSuite* ts = new TestSuite(this);
 809                 delete ts;
 810                 Exit(0);
 811         }
 812
 813         RehashFinishMutex = Mutexes->CreateMutex();
 814
 815         while (true)
 816         {
 817 #ifndef WIN32
 818                 static rusage ru;
 819 #else
 820                 static time_t uptime;
 821                 static struct tm * stime;
 822                 static char window_title[100];
 823 #endif
 824
 825                 /* Check if there is a config thread which has finished executing but has not yet been freed */
 826                 RehashFinishMutex->Lock();
 827                 if (this->ConfigThread && this->ConfigThread->GetExitFlag())
 828                 {
 829                         /* Rehash has completed */
 830
 831                         /* Switch over logfiles */
 832                         Logs->CloseLogs();
 833                         Logs->OpenFileLogs();
 834
 835                         this->Logs->Log("CONFIG",DEBUG,"Detected ConfigThread exiting, tidying up...");
 836
 837                         /* These are currently not known to be threadsafe, so they are executed outside
 838                          * of the thread. It would be pretty simple to move them to the thread Run method
 839                          * once they are known threadsafe with all the correct mutexes in place. This might
 840                          * not be worth the effort however as these functions execute relatively quickly
 841                          * and would not benefit from being within the config read thread.
 842                          *
 843                          * XXX: The order of these is IMPORTANT, do not reorder them without testing
 844                          * thoroughly!!!
 845                          */
 846                         this->XLines->CheckELines();
 847                         this->XLines->ApplyLines();
 848                         this->Res->Rehash();
 849                         this->ResetMaxBans();
 850                         InitializeDisabledCommands(Config->DisabledCommands, this);
 851                         User* user = !Config->RehashUserUID.empty() ? FindNick(Config->RehashUserUID) : NULL;
 852                         FOREACH_MOD_I(this, I_OnRehash, OnRehash(user, Config->RehashParameter));
 853                         this->BuildISupport();
 854
 855                         /* IMPORTANT: This delete may hang if you fuck up your thread syncronization.
 856                          * It will hang waiting for the ConfigThread to 'join' to avoid race conditons,
 857                          * until the other thread is completed.
 858                          */
 859                         delete ConfigThread;
 860                         ConfigThread = NULL;
 861                 }
 862                 RehashFinishMutex->Unlock();
 863
 864                 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 865                  * Once per loop iteration is pleanty.
 866                  */
 867                 OLDTIME = TIME;
 868                 TIME = time(NULL);
 869
 870                 /* Run background module timers every few seconds
 871                  * (the docs say modules shouldnt rely on accurate
 872                  * timing using this event, so we dont have to
 873                  * time this exactly).
 874                  */
 875                 if (TIME != OLDTIME)
 876                 {
 877                         /* Allow a buffer of two seconds drift on this so that ntpdate etc dont harass admins */
 878                         if (TIME < OLDTIME - 2)
 879                         {
 880                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %lu secs.", (unsigned long)OLDTIME-TIME);
 881                         }
 882                         else if (TIME > OLDTIME + 2)
 883                         {
 884                                 SNO->WriteToSnoMask('d', "\002EH?!\002 -- Time is jumping FORWARDS! Clock skipped %lu secs.", (unsigned long)TIME - OLDTIME);
 885                         }
 886
 887                         if ((TIME % 3600) == 0)
 888                         {
 889                                 this->RehashUsersAndChans();
 890                                 FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
 891                         }
 892
 893                         Timers->TickTimers(TIME);
 894                         this->DoBackgroundUserStuff();
 895
 896                         if ((TIME % 5) == 0)
 897                         {
 898                                 FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 899                                 SNO->FlushSnotices();
 900                         }
 901 #ifndef WIN32
 902                         /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */
 903                         if (!getrusage(RUSAGE_SELF, &ru))
 904                         {
 905                                 gettimeofday(&this->stats->LastSampled, NULL);
 906                                 this->stats->LastCPU = ru.ru_utime;
 907                         }
 908 #else
 909                         WindowsIPC->Check();
 910 #endif
 911                 }
 912
 913                 /* Call the socket engine to wait on the active
 914                  * file descriptors. The socket engine has everything's
 915                  * descriptors in its list... dns, modules, users,
 916                  * servers... so its nice and easy, just one call.
 917                  * This will cause any read or write events to be
 918                  * dispatched to their handlers.
 919                  */
 920                 this->SE->DispatchEvents();
 921
 922                 /* if any users were quit, take them out */
 923                 this->GlobalCulls.Apply();
 924
 925                 /* If any inspsockets closed, remove them */
 926                 this->BufferedSocketCull();
 927
 928                 if (this->s_signal)
 929                 {
 930                         this->SignalHandler(s_signal);
 931                         this->s_signal = 0;
 932                 }
 933         }
 934
 935         return 0;
 936 }
 937
 938 void InspIRCd::BufferedSocketCull()
 939 {
 940         for (std::map<BufferedSocket*,BufferedSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)
 941         {
 942                 this->Logs->Log("MISC",DEBUG,"Cull socket");
 943                 SE->DelFd(x->second);
 944                 x->second->Close();
 945                 delete x->second;
 946         }
 947         SocketCull.clear();
 948 }
 949
 950 /**********************************************************************************/
 951
 952 /**
 953  * An ircd in five lines! bwahahaha. ahahahahaha. ahahah *cough*.
 954  */
 955
 956 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 957  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 958  * registration timeout maximum seconds)
 959  */
 960 bool InspIRCd::AllModulesReportReady(User* user)
 961 {
 962         for (EventHandlerIter i = Modules->EventHandlers[I_OnCheckReady].begin(); i != Modules->EventHandlers[I_OnCheckReady].end(); ++i)
 963         {
 964                 if (!(*i)->OnCheckReady(user))
 965                         return false;
 966         }
 967         return true;
 968 }
 969
 970 time_t InspIRCd::Time()
 971 {
 972         return TIME;
 973 }
 974
 975 void InspIRCd::SetSignal(int signal)
 976 {
 977         *mysig = signal;
 978 }
 979
 980 /* On posix systems, the flow of the program starts right here, with
 981  * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
 982  * defines smain() and the real main() is in the service code under
 983  * win32service.cpp. This allows the service control manager to control
 984  * the process where we are running as a windows service.
 985  */
 986 ENTRYPOINT
 987 {
 988         SI = new InspIRCd(argc, argv);
 989         mysig = &SI->s_signal;
 990         SI->Run();
 991         delete SI;
 992         return 0;
 993 }