src/inspircd.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2020 Matt Schatz <genius3000@g3k.solutions>
   5  *   Copyright (C) 2018 Chris Novakovic <chrisnovakovic@users.noreply.github.com>
   6  *   Copyright (C) 2013, 2017-2020 Sadie Powell <sadie@witchery.services>
   7  *   Copyright (C) 2013 Adam <Adam@anope.org>
   8  *   Copyright (C) 2012-2014, 2016, 2018 Attila Molnar <attilamolnar@hush.com>
   9  *   Copyright (C) 2012 William Pitcock <nenolod@dereferenced.org>
  10  *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
  11  *   Copyright (C) 2012 ChrisTX <xpipe@hotmail.de>
  12  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
  13  *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
  14  *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
  15  *   Copyright (C) 2007-2008, 2010 Craig Edwards <brain@inspircd.org>
  16  *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
  17  *   Copyright (C) 2007 Oliver Lupton <om@inspircd.org>
  18  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
  19  *
  20  * This file is part of InspIRCd.  InspIRCd is free software: you can
  21  * redistribute it and/or modify it under the terms of the GNU General Public
  22  * License as published by the Free Software Foundation, version 2.
  23  *
  24  * This program is distributed in the hope that it will be useful, but WITHOUT
  25  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  26  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  27  * details.
  28  *
  29  * You should have received a copy of the GNU General Public License
  30  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  31  */
  32
  33
  34 #include "inspircd.h"
  35 #include <signal.h>
  36
  37 #ifndef _WIN32
  38         #include <unistd.h>
  39         #include <sys/resource.h>
  40         #include <getopt.h>
  41         #include <pwd.h> // setuid
  42         #include <grp.h> // setgid
  43 #else
  44         WORD g_wOriginalColors;
  45         WORD g_wBackgroundColor;
  46         HANDLE g_hStdout;
  47 #endif
  48
  49 #include <fstream>
  50 #include <iostream>
  51 #include "xline.h"
  52 #include "exitcodes.h"
  53
  54 InspIRCd* ServerInstance = NULL;
  55
  56 /** Separate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
  57  * if it must.
  58  *
  59  * This is provided as a pointer so that modules can change it to their custom mapping tables,
  60  * e.g. for national character support.
  61  */
  62 unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
  63
  64
  65 /* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
  66  * XXX this is a bit ugly. -- w00t
  67  */
  68 const char* ExitCodes[] =
  69 {
  70                 "No error",                                                             // 0
  71                 "DIE command",                                                  // 1
  72                 "Config file error",                                    // 2
  73                 "Logfile error",                                                // 3
  74                 "POSIX fork failed",                                    // 4
  75                 "Bad commandline parameters",                   // 5
  76                 "Can't write PID file",                                 // 6
  77                 "SocketEngine could not initialize",    // 7
  78                 "Refusing to start up as root",                 // 8
  79                 "Couldn't load module on startup",              // 9
  80                 "Received SIGTERM"                                              // 10
  81 };
  82
  83 namespace
  84 {
  85         void VoidSignalHandler(int);
  86
  87         // Warns a user running as root that they probably shouldn't.
  88         void CheckRoot()
  89         {
  90 #ifndef _WIN32
  91                 if (getegid() != 0 && geteuid() != 0)
  92                         return;
  93
  94                 std::cout << con_red << "Warning!" << con_reset << " You have started as root. Running as root is generally not required" << std::endl
  95                         << "and may allow an attacker to gain access to your system if they find a way to" << std::endl
  96                         << "exploit your IRC server." << std::endl
  97                         << std::endl;
  98                 if (isatty(fileno(stdout)))
  99                 {
 100                         std::cout << "InspIRCd will start in 30 seconds. If you are sure that you need to run as root" << std::endl
 101                                 << "then you can pass the " << con_bright << "--runasroot" << con_reset << " option to disable this wait." << std::endl;
 102                         sleep(30);
 103                 }
 104                 else
 105                 {
 106                         std::cout << "If you are sure that you need to run as root then you can pass the " << con_bright << "--runasroot" << con_reset << std::endl
 107                                 << "option to disable this error." << std::endl;
 108                                 ServerInstance->Exit(EXIT_STATUS_ROOT);
 109                 }
 110 #endif
 111         }
 112
 113         // Collects performance statistics for the STATS command.
 114         void CollectStats()
 115         {
 116 #ifndef _WIN32
 117                 static rusage ru;
 118                 if (getrusage(RUSAGE_SELF, &ru) == -1)
 119                         return; // Should never happen.
 120
 121                 ServerInstance->stats.LastSampled.tv_sec = ServerInstance->Time();
 122                 ServerInstance->stats.LastSampled.tv_nsec = ServerInstance->Time_ns();
 123                 ServerInstance->stats.LastCPU = ru.ru_utime;
 124 #else
 125                 if (!QueryPerformanceCounter(&ServerInstance->stats.LastSampled))
 126                         return; // Should never happen.
 127
 128                 FILETIME CreationTime;
 129                 FILETIME ExitTime;
 130                 FILETIME KernelTime;
 131                 FILETIME UserTime;
 132                 GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime);
 133
 134                 ServerInstance->stats.LastCPU.dwHighDateTime = KernelTime.dwHighDateTime + UserTime.dwHighDateTime;
 135                 ServerInstance->stats.LastCPU.dwLowDateTime = KernelTime.dwLowDateTime + UserTime.dwLowDateTime;
 136 #endif
 137         }
 138
 139         // Checks whether the server clock has skipped too much and warn about it if it has.
 140         void CheckTimeSkip(time_t oldtime, time_t newtime)
 141         {
 142                 if (!ServerInstance->Config->TimeSkipWarn)
 143                         return;
 144
 145                 time_t timediff = newtime - oldtime;
 146
 147                 if (timediff > ServerInstance->Config->TimeSkipWarn)
 148                         ServerInstance->SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped forwards by %lu seconds!", timediff);
 149
 150                 else if (timediff < -ServerInstance->Config->TimeSkipWarn)
 151                         ServerInstance->SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped backwards by %lu seconds!", labs(timediff));
 152         }
 153
 154         // Drops to the unprivileged user/group specified in <security:runas{user,group}>.
 155         void DropRoot()
 156         {
 157 #ifndef _WIN32
 158                 ConfigTag* security = ServerInstance->Config->ConfValue("security");
 159
 160                 const std::string SetGroup = security->getString("runasgroup");
 161                 if (!SetGroup.empty())
 162                 {
 163                         errno = 0;
 164                         if (setgroups(0, NULL) == -1)
 165                         {
 166                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
 167                                 exit(EXIT_STATUS_CONFIG);
 168                         }
 169
 170                         struct group* g = getgrnam(SetGroup.c_str());
 171                         if (!g)
 172                         {
 173                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getgrnam(%s) failed (wrong group?): %s", SetGroup.c_str(), strerror(errno));
 174                                 exit(EXIT_STATUS_CONFIG);
 175                         }
 176
 177                         if (setgid(g->gr_gid) == -1)
 178                         {
 179                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgid(%d) failed (wrong group?): %s", g->gr_gid, strerror(errno));
 180                                 exit(EXIT_STATUS_CONFIG);
 181                         }
 182                 }
 183
 184                 const std::string SetUser = security->getString("runasuser");
 185                 if (!SetUser.empty())
 186                 {
 187                         errno = 0;
 188                         struct passwd* u = getpwnam(SetUser.c_str());
 189                         if (!u)
 190                         {
 191                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getpwnam(%s) failed (wrong user?): %s", SetUser.c_str(), strerror(errno));
 192                                 exit(EXIT_STATUS_CONFIG);
 193                         }
 194
 195                         if (setuid(u->pw_uid) == -1)
 196                         {
 197                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setuid(%d) failed (wrong user?): %s", u->pw_uid, strerror(errno));
 198                                 exit(EXIT_STATUS_CONFIG);
 199                         }
 200                 }
 201 #endif
 202         }
 203
 204         // Expands a path relative to the current working directory.
 205         std::string ExpandPath(const char* path)
 206         {
 207 #ifdef _WIN32
 208                 TCHAR configPath[MAX_PATH + 1];
 209                 if (GetFullPathName(path, MAX_PATH, configPath, NULL) > 0)
 210                         return configPath;
 211 #else
 212                 char configPath[PATH_MAX + 1];
 213                 if (realpath(path, configPath))
 214                         return configPath;
 215 #endif
 216                 return path;
 217         }
 218
 219         // Locates a config file on the file system.
 220         bool FindConfigFile(std::string& path)
 221         {
 222                 if (FileSystem::FileExists(path))
 223                         return true;
 224
 225 #ifdef _WIN32
 226                 // Windows hides file extensions by default so try appending .txt to the path
 227                 // to help users who have that feature enabled and can't create .conf files.
 228                 const std::string txtpath = path + ".txt";
 229                 if (FileSystem::FileExists(txtpath))
 230                 {
 231                         path.assign(txtpath);
 232                         return true;
 233                 }
 234 #endif
 235                 return false;
 236         }
 237
 238         // Attempts to fork into the background.
 239         void ForkIntoBackground()
 240         {
 241 #ifndef _WIN32
 242                 // We use VoidSignalHandler whilst forking to avoid breaking daemon scripts
 243                 // if the parent process exits with SIGTERM (15) instead of EXIT_STATUS_NOERROR (0).
 244                 signal(SIGTERM, VoidSignalHandler);
 245
 246                 errno = 0;
 247                 int childpid = fork();
 248                 if (childpid < 0)
 249                 {
 250                         ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "fork() failed: %s", strerror(errno));
 251                         std::cout << con_red << "Error:" << con_reset << " unable to fork into background: " << strerror(errno);
 252                         ServerInstance->Exit(EXIT_STATUS_FORK);
 253                 }
 254                 else if (childpid > 0)
 255                 {
 256                         // Wait until the child process kills the parent so that the shell prompt
 257                         // doesnt display over the output. Sending a kill with a signal of 0 just
 258                         // checks that the child pid is still running. If it is not then an error
 259                         // happened and the parent should exit.
 260                         while (kill(childpid, 0) != -1)
 261                                 sleep(1);
 262                         exit(EXIT_STATUS_NOERROR);
 263                 }
 264                 else
 265                 {
 266                         setsid();
 267                         signal(SIGTERM, InspIRCd::SetSignal);
 268                         SocketEngine::RecoverFromFork();
 269                 }
 270 #endif
 271         }
 272
 273         // Increase the size of a core dump file to improve debugging problems.
 274         void IncreaseCoreDumpSize()
 275         {
 276 #ifndef _WIN32
 277                 errno = 0;
 278                 rlimit rl;
 279                 if (getrlimit(RLIMIT_CORE, &rl) == -1)
 280                 {
 281                         ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to increase core dump size: getrlimit(RLIMIT_CORE) failed: %s", strerror(errno));
 282                         return;
 283                 }
 284
 285                 rl.rlim_cur = rl.rlim_max;
 286                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 287                         ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to increase core dump size: setrlimit(RLIMIT_CORE) failed: %s", strerror(errno));
 288 #endif
 289         }
 290
 291         // Parses the command line options.
 292         void ParseOptions()
 293         {
 294                 int do_debug = 0, do_nofork = 0,    do_nolog = 0;
 295                 int do_nopid = 0, do_runasroot = 0, do_version = 0;
 296                 struct option longopts[] =
 297                 {
 298                         { "config",    required_argument, NULL,          'c' },
 299                         { "debug",     no_argument,       &do_debug,     1 },
 300                         { "nofork",    no_argument,       &do_nofork,    1 },
 301                         { "nolog",     no_argument,       &do_nolog,     1 },
 302                         { "nopid",     no_argument,       &do_nopid,     1 },
 303                         { "runasroot", no_argument,       &do_runasroot, 1 },
 304                         { "version",   no_argument,       &do_version,   1 },
 305                         { 0, 0, 0, 0 }
 306                 };
 307
 308                 char** argv = ServerInstance->Config->cmdline.argv;
 309                 int ret;
 310                 while ((ret = getopt_long(ServerInstance->Config->cmdline.argc, argv, ":c:", longopts, NULL)) != -1)
 311                 {
 312                         switch (ret)
 313                         {
 314                                 case 0:
 315                                         // A long option was specified.
 316                                         break;
 317
 318                                 case 'c':
 319                                         // The -c option was specified.
 320                                         ServerInstance->ConfigFileName = ExpandPath(optarg);
 321                                         break;
 322
 323                                 default:
 324                                         // An unknown option was specified.
 325                                         std::cout << con_red << "Error:" <<  con_reset << " unknown option '" << argv[optind] << "'." << std::endl
 326                                                 << con_bright << "Usage: " << con_reset << argv[0] << " [--config <file>] [--debug] [--nofork] [--nolog]" << std::endl
 327                                                 << std::string(strlen(argv[0]) + 8, ' ') << "[--nopid] [--runasroot] [--version]" << std::endl;
 328                                         ServerInstance->Exit(EXIT_STATUS_ARGV);
 329                                         break;
 330                         }
 331                 }
 332
 333                 if (do_version)
 334                 {
 335                         std::cout << std::endl << INSPIRCD_VERSION << std::endl;
 336                         ServerInstance->Exit(EXIT_STATUS_NOERROR);
 337                 }
 338
 339                 // Store the relevant parsed arguments
 340                 ServerInstance->Config->cmdline.forcedebug = !!do_debug;
 341                 ServerInstance->Config->cmdline.nofork = !!do_nofork;
 342                 ServerInstance->Config->cmdline.runasroot = !!do_runasroot;
 343                 ServerInstance->Config->cmdline.writelog = !do_nolog;
 344                 ServerInstance->Config->cmdline.writepid = !do_nopid;
 345         }
 346         // Seeds the random number generator if applicable.
 347         void SeedRng(timespec ts)
 348         {
 349 #if defined _WIN32
 350                 srand(ts.tv_nsec ^ ts.tv_sec);
 351 #elif !defined HAS_ARC4RANDOM_BUF
 352                 srandom(ts.tv_nsec ^ ts.tv_sec);
 353 #endif
 354         }
 355
 356         // Sets handlers for various process signals.
 357         void SetSignals()
 358         {
 359 #ifndef _WIN32
 360                 signal(SIGALRM, SIG_IGN);
 361                 signal(SIGCHLD, SIG_IGN);
 362                 signal(SIGHUP, InspIRCd::SetSignal);
 363                 signal(SIGPIPE, SIG_IGN);
 364                 signal(SIGUSR1, SIG_IGN);
 365                 signal(SIGUSR2, SIG_IGN);
 366                 signal(SIGXFSZ, SIG_IGN);
 367 #endif
 368                 signal(SIGTERM, InspIRCd::SetSignal);
 369         }
 370
 371         void TryBindPorts()
 372         {
 373                 FailedPortList pl;
 374                 ServerInstance->BindPorts(pl);
 375
 376                 if (!pl.empty())
 377                 {
 378                         std::cout << con_red << "Warning!" << con_reset << " Some of your listener" << (pl.size() == 1 ? "s" : "") << " failed to bind:" << std::endl
 379                                 << std::endl;
 380
 381                         for (FailedPortList::const_iterator iter = pl.begin(); iter != pl.end(); ++iter)
 382                         {
 383                                 const FailedPort& fp = *iter;
 384                                 std::cout << "  " << con_bright << fp.sa.str() << con_reset << ": " << strerror(fp.error) << '.' << std::endl
 385                                         << "  " << "Created from <bind> tag at " << fp.tag->getTagLocation() << std::endl
 386                                         << std::endl;
 387                         }
 388
 389                         std::cout << con_bright << "Hints:" << con_reset << std::endl
 390                                 << "- For TCP/IP listeners try using a public IP address in <bind:address> instead" << std::endl
 391                                 << "  of * or leaving it blank." << std::endl
 392                                 << "- For UNIX socket listeners try enabling <bind:rewrite> to replace old sockets." << std::endl;
 393                 }
 394         }
 395
 396         // Required for returning the proper value of EXIT_SUCCESS for the parent process.
 397         void VoidSignalHandler(int)
 398         {
 399                 exit(EXIT_STATUS_NOERROR);
 400         }
 401 }
 402
 403 void InspIRCd::Cleanup()
 404 {
 405         // Close all listening sockets
 406         for (unsigned int i = 0; i < ports.size(); i++)
 407         {
 408                 ports[i]->cull();
 409                 delete ports[i];
 410         }
 411         ports.clear();
 412
 413         // Tell modules that we're shutting down.
 414         const std::string quitmsg = "Server shutting down";
 415         FOREACH_MOD(OnShutdown, (quitmsg));
 416
 417         // Disconnect all local users
 418         const UserManager::LocalList& list = Users.GetLocalUsers();
 419         while (!list.empty())
 420                 ServerInstance->Users.QuitUser(list.front(), quitmsg);
 421
 422         GlobalCulls.Apply();
 423         Modules->UnloadAll();
 424
 425         /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
 426         /* Must be deleted before modes as it decrements modelines */
 427         if (FakeClient)
 428         {
 429                 delete FakeClient->server;
 430                 FakeClient->cull();
 431         }
 432         stdalgo::delete_zero(this->FakeClient);
 433         stdalgo::delete_zero(this->XLines);
 434         stdalgo::delete_zero(this->Config);
 435         SocketEngine::Deinit();
 436         Logs->CloseLogs();
 437 }
 438
 439 void InspIRCd::WritePID(const std::string& filename, bool exitonfail)
 440 {
 441 #ifndef _WIN32
 442         if (!ServerInstance->Config->cmdline.writepid)
 443         {
 444                 this->Logs->Log("STARTUP", LOG_DEFAULT, "--nopid specified on command line; PID file not written.");
 445                 return;
 446         }
 447
 448         std::string fname = ServerInstance->Config->Paths.PrependData(filename.empty() ? "inspircd.pid" : filename);
 449         std::ofstream outfile(fname.c_str());
 450         if (outfile.is_open())
 451         {
 452                 outfile << getpid();
 453                 outfile.close();
 454         }
 455         else
 456         {
 457                 if (exitonfail)
 458                         std::cout << "Failed to write PID-file '" << fname << "', exiting." << std::endl;
 459                 this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to write PID-file '%s'%s", fname.c_str(), (exitonfail ? ", exiting." : ""));
 460                 if (exitonfail)
 461                         Exit(EXIT_STATUS_PID);
 462         }
 463 #endif
 464 }
 465
 466 InspIRCd::InspIRCd(int argc, char** argv)
 467         : FakeClient(NULL)
 468         , ConfigFileName(INSPIRCD_CONFIG_PATH "/inspircd.conf")
 469         , ConfigThread(NULL)
 470         , Config(NULL)
 471         , XLines(NULL)
 472         , PI(&DefaultProtocolInterface)
 473         , GenRandom(&DefaultGenRandom)
 474         , IsChannel(&DefaultIsChannel)
 475         , IsNick(&DefaultIsNick)
 476         , IsIdent(&DefaultIsIdent)
 477 {
 478         ServerInstance = this;
 479
 480         UpdateTime();
 481         this->startup_time = TIME.tv_sec;
 482
 483         IncreaseCoreDumpSize();
 484         SeedRng(TIME);
 485         SocketEngine::Init();
 486
 487         this->Config = new ServerConfig;
 488         dynamic_reference_base::reset_all();
 489         this->XLines = new XLineManager;
 490
 491         this->Config->cmdline.argv = argv;
 492         this->Config->cmdline.argc = argc;
 493
 494 #ifdef _WIN32
 495         // Initialize the console values
 496         g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
 497         CONSOLE_SCREEN_BUFFER_INFO bufinf;
 498         if(GetConsoleScreenBufferInfo(g_hStdout, &bufinf))
 499         {
 500                 g_wOriginalColors = bufinf.wAttributes & 0x00FF;
 501                 g_wBackgroundColor = bufinf.wAttributes & 0x00F0;
 502         }
 503         else
 504         {
 505                 g_wOriginalColors = FOREGROUND_RED|FOREGROUND_BLUE|FOREGROUND_GREEN;
 506                 g_wBackgroundColor = 0;
 507         }
 508 #endif
 509
 510         {
 511                 ServiceProvider* provs[] =
 512                 {
 513                         &rfcevents.numeric, &rfcevents.join, &rfcevents.part, &rfcevents.kick, &rfcevents.quit, &rfcevents.nick,
 514                         &rfcevents.mode, &rfcevents.topic, &rfcevents.privmsg, &rfcevents.invite, &rfcevents.ping, &rfcevents.pong,
 515                         &rfcevents.error
 516                 };
 517                 Modules.AddServices(provs, sizeof(provs)/sizeof(provs[0]));
 518         }
 519
 520         std::cout << con_green << "InspIRCd - Internet Relay Chat Daemon" << con_reset << std::endl
 521                 << "See " << con_green << "/INFO" << con_reset << " for contributors & authors" << std::endl
 522                 << std::endl;
 523
 524         ParseOptions();
 525         if (Config->cmdline.forcedebug)
 526         {
 527                 FileWriter* fw = new FileWriter(stdout, 1);
 528                 FileLogStream* fls = new FileLogStream(LOG_RAWIO, fw);
 529                 Logs->AddLogTypes("*", fls, true);
 530         }
 531
 532         if (!FindConfigFile(ConfigFileName))
 533         {
 534                 this->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to open config file %s", ConfigFileName.c_str());
 535                 std::cout << "ERROR: Cannot open config file: " << ConfigFileName << std::endl << "Exiting..." << std::endl;
 536                 Exit(EXIT_STATUS_CONFIG);
 537         }
 538
 539         SetSignals();
 540         if (!Config->cmdline.runasroot)
 541                 CheckRoot();
 542         if (!Config->cmdline.nofork)
 543                 ForkIntoBackground();
 544
 545         std::cout << "InspIRCd Process ID: " << con_green << getpid() << con_reset << std::endl;
 546
 547         /* During startup we read the configuration now, not in
 548          * a separate thread
 549          */
 550         this->Config->Read();
 551         this->Config->Apply(NULL, "");
 552         Logs->OpenFileLogs();
 553
 554         // If we don't have a SID, generate one based on the server name and the server description
 555         if (Config->sid.empty())
 556                 Config->sid = UIDGenerator::GenerateSID(Config->ServerName, Config->ServerDesc);
 557
 558         // Initialize the UID generator with our sid
 559         this->UIDGen.init(Config->sid);
 560
 561         // Create the server user for this server
 562         this->FakeClient = new FakeUser(Config->sid, Config->ServerName, Config->ServerDesc);
 563
 564         // This is needed as all new XLines are marked pending until ApplyLines() is called
 565         this->XLines->ApplyLines();
 566
 567         std::cout << std::endl;
 568
 569         TryBindPorts();
 570
 571         this->Modules->LoadAll();
 572
 573         // Build ISupport as ModuleManager::LoadAll() does not do it
 574         this->ISupport.Build();
 575
 576         std::cout << "InspIRCd is now running as '" << Config->ServerName << "'[" << Config->GetSID() << "] with " << SocketEngine::GetMaxFds() << " max open sockets" << std::endl;
 577
 578 #ifndef _WIN32
 579         if (!Config->cmdline.nofork)
 580         {
 581                 if (kill(getppid(), SIGTERM) == -1)
 582                 {
 583                         std::cout << "Error killing parent process: " << strerror(errno) << std::endl;
 584                         Logs->Log("STARTUP", LOG_DEFAULT, "Error killing parent process: %s",strerror(errno));
 585                 }
 586         }
 587
 588         /* Explicitly shut down stdio's stdin/stdout/stderr.
 589          *
 590          * The previous logic here was to only do this if stdio was connected to a controlling
 591          * terminal.  However, we must do this always to avoid information leaks and other
 592          * problems related to stdio.
 593          *
 594          * The only exception is if we are in debug mode.
 595          *
 596          *    -- nenolod
 597          */
 598         if ((!Config->cmdline.nofork) && (!Config->cmdline.forcedebug))
 599         {
 600                 int fd = open("/dev/null", O_RDWR);
 601
 602                 fclose(stdin);
 603                 fclose(stderr);
 604                 fclose(stdout);
 605
 606                 if (dup2(fd, STDIN_FILENO) < 0)
 607                         Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdin.");
 608                 if (dup2(fd, STDOUT_FILENO) < 0)
 609                         Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdout.");
 610                 if (dup2(fd, STDERR_FILENO) < 0)
 611                         Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stderr.");
 612                 close(fd);
 613         }
 614         else
 615         {
 616                 Logs->Log("STARTUP", LOG_DEFAULT, "Keeping pseudo-tty open as we are running in the foreground.");
 617         }
 618 #else
 619         /* Set win32 service as running, if we are running as a service */
 620         SetServiceRunning();
 621
 622         // Handle forking
 623         if(!Config->cmdline.nofork)
 624         {
 625                 FreeConsole();
 626         }
 627
 628         QueryPerformanceFrequency(&stats.QPFrequency);
 629 #endif
 630
 631         WritePID(Config->PID);
 632         DropRoot();
 633
 634         Logs->Log("STARTUP", LOG_DEFAULT, "Startup complete as '%s'[%s], %lu max open sockets", Config->ServerName.c_str(),Config->GetSID().c_str(), SocketEngine::GetMaxFds());
 635 }
 636
 637 void InspIRCd::UpdateTime()
 638 {
 639 #if defined HAS_CLOCK_GETTIME
 640         clock_gettime(CLOCK_REALTIME, &TIME);
 641 #elif defined _WIN32
 642         SYSTEMTIME st;
 643         GetSystemTime(&st);
 644
 645         TIME.tv_sec = time(NULL);
 646         TIME.tv_nsec = st.wMilliseconds;
 647 #else
 648         struct timeval tv;
 649         gettimeofday(&tv, NULL);
 650
 651         TIME.tv_sec = tv.tv_sec;
 652         TIME.tv_nsec = tv.tv_usec * 1000;
 653 #endif
 654 }
 655
 656 void InspIRCd::Run()
 657 {
 658         UpdateTime();
 659         time_t OLDTIME = TIME.tv_sec;
 660
 661         while (true)
 662         {
 663                 /* Check if there is a config thread which has finished executing but has not yet been freed */
 664                 if (this->ConfigThread && this->ConfigThread->IsDone())
 665                 {
 666                         /* Rehash has completed */
 667                         this->Logs->Log("CONFIG", LOG_DEBUG, "Detected ConfigThread exiting, tidying up...");
 668
 669                         this->ConfigThread->Finish();
 670
 671                         ConfigThread->join();
 672                         delete ConfigThread;
 673                         ConfigThread = NULL;
 674                 }
 675
 676                 UpdateTime();
 677
 678                 /* Run background module timers every few seconds
 679                  * (the docs say modules should not rely on accurate
 680                  * timing using this event, so we dont have to
 681                  * time this exactly).
 682                  */
 683                 if (TIME.tv_sec != OLDTIME)
 684                 {
 685                         CollectStats();
 686                         CheckTimeSkip(OLDTIME, TIME.tv_sec);
 687
 688                         OLDTIME = TIME.tv_sec;
 689
 690                         if ((TIME.tv_sec % 3600) == 0)
 691                                 FOREACH_MOD(OnGarbageCollect, ());
 692
 693                         Timers.TickTimers(TIME.tv_sec);
 694                         Users->DoBackgroundUserStuff();
 695
 696                         if ((TIME.tv_sec % 5) == 0)
 697                         {
 698                                 FOREACH_MOD(OnBackgroundTimer, (TIME.tv_sec));
 699                                 SNO->FlushSnotices();
 700                         }
 701                 }
 702
 703                 /* Call the socket engine to wait on the active
 704                  * file descriptors. The socket engine has everything's
 705                  * descriptors in its list... dns, modules, users,
 706                  * servers... so its nice and easy, just one call.
 707                  * This will cause any read or write events to be
 708                  * dispatched to their handlers.
 709                  */
 710                 SocketEngine::DispatchTrialWrites();
 711                 SocketEngine::DispatchEvents();
 712
 713                 /* if any users were quit, take them out */
 714                 GlobalCulls.Apply();
 715                 AtomicActions.Run();
 716
 717                 if (s_signal)
 718                 {
 719                         this->SignalHandler(s_signal);
 720                         s_signal = 0;
 721                 }
 722         }
 723 }
 724
 725 sig_atomic_t InspIRCd::s_signal = 0;
 726
 727 void InspIRCd::SetSignal(int signal)
 728 {
 729         s_signal = signal;
 730 }
 731
 732 /* On posix systems, the flow of the program starts right here, with
 733  * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
 734  * defines smain() and the real main() is in the service code under
 735  * win32service.cpp. This allows the service control manager to control
 736  * the process where we are running as a windows service.
 737  */
 738 ENTRYPOINT
 739 {
 740         new InspIRCd(argc, argv);
 741         ServerInstance->Run();
 742         delete ServerInstance;
 743         return 0;
 744 }