src/inspircd.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2012 William Pitcock <nenolod@dereferenced.org>
   5  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   6  *   Copyright (C) 2003-2008 Craig Edwards <craigedwards@brainbox.cc>
   7  *   Copyright (C) 2008 Uli Schlachter <psychon@znc.in>
   8  *   Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
   9  *   Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
  10  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
  11  *   Copyright (C) 2007 Burlex <???@???>
  12  *   Copyright (C) 2003 Craig McLure <craig@chatspike.net>
  13  *   Copyright (C) 2003 randomdan <???@???>
  14  *
  15  * This file is part of InspIRCd.  InspIRCd is free software: you can
  16  * redistribute it and/or modify it under the terms of the GNU General Public
  17  * License as published by the Free Software Foundation, version 2.
  18  *
  19  * This program is distributed in the hope that it will be useful, but WITHOUT
  20  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  21  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  22  * details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  26  */
  27
  28
  29 #include "inspircd.h"
  30 #include <signal.h>
  31
  32 #ifndef _WIN32
  33         #include <unistd.h>
  34         #include <sys/resource.h>
  35         #include <dlfcn.h>
  36         #include <getopt.h>
  37         #include <pwd.h> // setuid
  38         #include <grp.h> // setgid
  39 #else
  40         WORD g_wOriginalColors;
  41         WORD g_wBackgroundColor;
  42         HANDLE g_hStdout;
  43 #endif
  44
  45 #include <fstream>
  46 #include <iostream>
  47 #include "xline.h"
  48 #include "exitcodes.h"
  49
  50 InspIRCd* ServerInstance = NULL;
  51
  52 /** Seperate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
  53  * if it must.
  54  *
  55  * This is provided as a pointer so that modules can change it to their custom mapping tables,
  56  * e.g. for national character support.
  57  */
  58 unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
  59
  60
  61 /* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
  62  * XXX this is a bit ugly. -- w00t
  63  */
  64 const char* ExitCodes[] =
  65 {
  66                 "No error",                                                             // 0
  67                 "DIE command",                                                  // 1
  68                 "Config file error",                                    // 2
  69                 "Logfile error",                                                // 3
  70                 "POSIX fork failed",                                    // 4
  71                 "Bad commandline parameters",                   // 5
  72                 "Can't write PID file",                                 // 6
  73                 "SocketEngine could not initialize",    // 7
  74                 "Refusing to start up as root",                 // 8
  75                 "Couldn't load module on startup",              // 9
  76                 "Received SIGTERM"                                              // 10
  77 };
  78
  79 namespace
  80 {
  81         // Deletes a pointer and then zeroes it.
  82         template<typename T>
  83         void DeleteZero(T*& pr)
  84         {
  85                 T* p = pr;
  86                 pr = NULL;
  87                 delete p;
  88         }
  89
  90         // Drops to the unprivileged user/group specified in <security:runas{user,group}>.
  91         void DropRoot()
  92         {
  93 #ifndef _WIN32
  94                 ConfigTag* security = ServerInstance->Config->ConfValue("security");
  95
  96                 const std::string SetGroup = security->getString("runasgroup");
  97                 if (!SetGroup.empty())
  98                 {
  99                         errno = 0;
 100                         if (setgroups(0, NULL) == -1)
 101                         {
 102                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
 103                                 exit(EXIT_STATUS_CONFIG);
 104                         }
 105
 106                         struct group* g = getgrnam(SetGroup.c_str());
 107                         if (!g)
 108                         {
 109                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getgrnam(%s) failed (wrong group?): %s", SetGroup.c_str(), strerror(errno));
 110                                 exit(EXIT_STATUS_CONFIG);
 111                         }
 112
 113                         if (setgid(g->gr_gid) == -1)
 114                         {
 115                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgid(%d) failed (wrong group?): %s", g->gr_gid, strerror(errno));
 116                                 exit(EXIT_STATUS_CONFIG);
 117                         }
 118                 }
 119
 120                 const std::string SetUser = security->getString("runasuser");
 121                 if (!SetUser.empty())
 122                 {
 123                         errno = 0;
 124                         struct passwd* u = getpwnam(SetUser.c_str());
 125                         if (!u)
 126                         {
 127                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getpwnam(%s) failed (wrong user?): %s", SetUser.c_str(), strerror(errno));
 128                                 exit(EXIT_STATUS_CONFIG);
 129                         }
 130
 131                         if (setuid(u->pw_uid) == -1)
 132                         {
 133                                 ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setuid(%d) failed (wrong user?): %s", u->pw_uid, strerror(errno));
 134                                 exit(EXIT_STATUS_CONFIG);
 135                         }
 136                 }
 137 #endif
 138         }
 139
 140         // Seeds the random number generator if applicable.
 141         void SeedRng(timespec ts)
 142         {
 143 #if defined _WIN32
 144                 srand(ts.tv_nsec ^ ts.tv_sec);
 145 #elif !defined HAS_ARC4RANDOM_BUF
 146                 srandom(ts.tv_nsec ^ ts.tv_sec);
 147 #endif
 148         }
 149
 150         // Required for returning the proper value of EXIT_SUCCESS for the parent process.
 151         void VoidSignalHandler(int)
 152         {
 153                 exit(EXIT_STATUS_NOERROR);
 154         }
 155 }
 156
 157 void InspIRCd::Cleanup()
 158 {
 159         // Close all listening sockets
 160         for (unsigned int i = 0; i < ports.size(); i++)
 161         {
 162                 ports[i]->cull();
 163                 delete ports[i];
 164         }
 165         ports.clear();
 166
 167         // Tell modules that we're shutting down.
 168         const std::string quitmsg = "Server shutting down";
 169         FOREACH_MOD(OnShutdown, (quitmsg));
 170
 171         // Disconnect all local users
 172         const UserManager::LocalList& list = Users.GetLocalUsers();
 173         while (!list.empty())
 174                 ServerInstance->Users.QuitUser(list.front(), quitmsg);
 175
 176         GlobalCulls.Apply();
 177         Modules->UnloadAll();
 178
 179         /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
 180         /* Must be deleted before modes as it decrements modelines */
 181         if (FakeClient)
 182         {
 183                 delete FakeClient->server;
 184                 FakeClient->cull();
 185         }
 186         DeleteZero(this->FakeClient);
 187         DeleteZero(this->XLines);
 188         DeleteZero(this->Config);
 189         SocketEngine::Deinit();
 190         Logs->CloseLogs();
 191 }
 192
 193 void InspIRCd::SetSignals()
 194 {
 195 #ifndef _WIN32
 196         signal(SIGALRM, SIG_IGN);
 197         signal(SIGCHLD, SIG_IGN);
 198         signal(SIGHUP, InspIRCd::SetSignal);
 199         signal(SIGPIPE, SIG_IGN);
 200         signal(SIGUSR1, SIG_IGN);
 201         signal(SIGUSR2, SIG_IGN);
 202         signal(SIGXFSZ, SIG_IGN);
 203 #endif
 204         signal(SIGTERM, InspIRCd::SetSignal);
 205 }
 206
 207 bool InspIRCd::DaemonSeed()
 208 {
 209 #ifdef _WIN32
 210         std::cout << "InspIRCd Process ID: " << con_green << GetCurrentProcessId() << con_reset << std::endl;
 211         return true;
 212 #else
 213         // Do not use exit() here: It will exit with status SIGTERM which would break e.g. daemon scripts
 214         signal(SIGTERM, VoidSignalHandler);
 215
 216         int childpid = fork();
 217         if (childpid < 0)
 218                 return false;
 219         else if (childpid > 0)
 220         {
 221                 /* We wait here for the child process to kill us,
 222                  * so that the shell prompt doesnt come back over
 223                  * the output.
 224                  * Sending a kill with a signal of 0 just checks
 225                  * if the child pid is still around. If theyre not,
 226                  * they threw an error and we should give up.
 227                  */
 228                 while (kill(childpid, 0) != -1)
 229                         sleep(1);
 230                 exit(EXIT_STATUS_NOERROR);
 231         }
 232         setsid ();
 233         std::cout << "InspIRCd Process ID: " << con_green << getpid() << con_reset << std::endl;
 234
 235         signal(SIGTERM, InspIRCd::SetSignal);
 236
 237         rlimit rl;
 238         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 239         {
 240                 this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to getrlimit()!");
 241                 return false;
 242         }
 243         rl.rlim_cur = rl.rlim_max;
 244
 245         if (setrlimit(RLIMIT_CORE, &rl) == -1)
 246                         this->Logs->Log("STARTUP", LOG_DEFAULT, "setrlimit() failed, cannot increase coredump size.");
 247
 248         return true;
 249 #endif
 250 }
 251
 252 void InspIRCd::WritePID(const std::string& filename, bool exitonfail)
 253 {
 254 #ifndef _WIN32
 255         if (!ServerInstance->Config->cmdline.writepid)
 256         {
 257                 this->Logs->Log("STARTUP", LOG_DEFAULT, "--nopid specified on command line; PID file not written.");
 258                 return;
 259         }
 260
 261         std::string fname = ServerInstance->Config->Paths.PrependData(filename.empty() ? "inspircd.pid" : filename);
 262         std::ofstream outfile(fname.c_str());
 263         if (outfile.is_open())
 264         {
 265                 outfile << getpid();
 266                 outfile.close();
 267         }
 268         else
 269         {
 270                 if (exitonfail)
 271                         std::cout << "Failed to write PID-file '" << fname << "', exiting." << std::endl;
 272                 this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to write PID-file '%s'%s", fname.c_str(), (exitonfail ? ", exiting." : ""));
 273                 if (exitonfail)
 274                         Exit(EXIT_STATUS_PID);
 275         }
 276 #endif
 277 }
 278
 279 InspIRCd::InspIRCd(int argc, char** argv)
 280         : FakeClient(NULL)
 281         , ConfigFileName(INSPIRCD_CONFIG_PATH "/inspircd.conf")
 282         , ConfigThread(NULL)
 283         , Config(NULL)
 284         , XLines(NULL)
 285         , PI(&DefaultProtocolInterface)
 286         , GenRandom(&DefaultGenRandom)
 287         , IsChannel(&DefaultIsChannel)
 288         , IsNick(&DefaultIsNick)
 289         , IsIdent(&DefaultIsIdent)
 290 {
 291         ServerInstance = this;
 292
 293         UpdateTime();
 294         this->startup_time = TIME.tv_sec;
 295
 296         SeedRng(TIME);
 297         SocketEngine::Init();
 298
 299         this->Config = new ServerConfig;
 300         dynamic_reference_base::reset_all();
 301         this->XLines = new XLineManager;
 302
 303         this->Config->cmdline.argv = argv;
 304         this->Config->cmdline.argc = argc;
 305
 306 #ifdef _WIN32
 307         // Initialize the console values
 308         g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
 309         CONSOLE_SCREEN_BUFFER_INFO bufinf;
 310         if(GetConsoleScreenBufferInfo(g_hStdout, &bufinf))
 311         {
 312                 g_wOriginalColors = bufinf.wAttributes & 0x00FF;
 313                 g_wBackgroundColor = bufinf.wAttributes & 0x00F0;
 314         }
 315         else
 316         {
 317                 g_wOriginalColors = FOREGROUND_RED|FOREGROUND_BLUE|FOREGROUND_GREEN;
 318                 g_wBackgroundColor = 0;
 319         }
 320 #endif
 321
 322         {
 323                 ServiceProvider* provs[] =
 324                 {
 325                         &rfcevents.numeric, &rfcevents.join, &rfcevents.part, &rfcevents.kick, &rfcevents.quit, &rfcevents.nick,
 326                         &rfcevents.mode, &rfcevents.topic, &rfcevents.privmsg, &rfcevents.invite, &rfcevents.ping, &rfcevents.pong,
 327                         &rfcevents.error
 328                 };
 329                 Modules.AddServices(provs, sizeof(provs)/sizeof(provs[0]));
 330         }
 331
 332         // Flag variables passed to getopt_long() later
 333         int do_version = 0, do_nofork = 0, do_debug = 0,
 334                 do_nolog = 0, do_nopid = 0, do_root = 0;
 335         struct option longopts[] =
 336         {
 337                 { "nofork",     no_argument,            &do_nofork,     1       },
 338                 { "config",     required_argument,      NULL,           'c'     },
 339                 { "debug",      no_argument,            &do_debug,      1       },
 340                 { "nolog",      no_argument,            &do_nolog,      1       },
 341                 { "nopid",      no_argument,            &do_nopid,      1       },
 342                 { "runasroot",  no_argument,            &do_root,       1       },
 343                 { "version",    no_argument,            &do_version,    1       },
 344                 { 0, 0, 0, 0 }
 345         };
 346
 347         int c;
 348         int index;
 349         while ((c = getopt_long(argc, argv, ":c:", longopts, &index)) != -1)
 350         {
 351                 switch (c)
 352                 {
 353                         case 'c':
 354                                 /* Config filename was set */
 355                                 ConfigFileName = optarg;
 356 #ifdef _WIN32
 357                                 TCHAR configPath[MAX_PATH + 1];
 358                                 if (GetFullPathName(optarg, MAX_PATH, configPath, NULL) > 0)
 359                                         ConfigFileName = configPath;
 360 #else
 361                                 char configPath[PATH_MAX + 1];
 362                                 if (realpath(optarg, configPath))
 363                                         ConfigFileName = configPath;
 364 #endif
 365                         break;
 366                         case 0:
 367                                 /* getopt_long_only() set an int variable, just keep going */
 368                         break;
 369                         case '?':
 370                                 /* Unknown parameter */
 371                         default:
 372                                 /* Fall through to handle other weird values too */
 373                                 std::cout << "Unknown parameter '" << argv[optind-1] << "'" << std::endl;
 374                                 std::cout << "Usage: " << argv[0] << " [--nofork] [--nolog] [--nopid] [--debug] [--config <config>]" << std::endl <<
 375                                         std::string(static_cast<size_t>(8+strlen(argv[0])), ' ') << "[--runasroot] [--version]" << std::endl;
 376                                 Exit(EXIT_STATUS_ARGV);
 377                         break;
 378                 }
 379         }
 380
 381         if (do_version)
 382         {
 383                 std::cout << std::endl << INSPIRCD_VERSION << std::endl;
 384                 Exit(EXIT_STATUS_NOERROR);
 385         }
 386
 387 #ifdef _WIN32
 388         // Set up winsock
 389         WSADATA wsadata;
 390         WSAStartup(MAKEWORD(2,2), &wsadata);
 391 #endif
 392
 393         /* Set the finished argument values */
 394         Config->cmdline.nofork = (do_nofork != 0);
 395         Config->cmdline.forcedebug = (do_debug != 0);
 396         Config->cmdline.writelog = !do_nolog;
 397         Config->cmdline.writepid = !do_nopid;
 398
 399         if (do_debug)
 400         {
 401                 FileWriter* fw = new FileWriter(stdout, 1);
 402                 FileLogStream* fls = new FileLogStream(LOG_RAWIO, fw);
 403                 Logs->AddLogTypes("*", fls, true);
 404         }
 405
 406         if (!FileSystem::FileExists(ConfigFileName))
 407         {
 408 #ifdef _WIN32
 409                 /* Windows can (and defaults to) hide file extensions, so let's play a bit nice for windows users. */
 410                 std::string txtconf = this->ConfigFileName;
 411                 txtconf.append(".txt");
 412
 413                 if (FileSystem::FileExists(txtconf))
 414                 {
 415                         ConfigFileName = txtconf;
 416                 }
 417                 else
 418 #endif
 419                 {
 420                         std::cout << "ERROR: Cannot open config file: " << ConfigFileName << std::endl << "Exiting..." << std::endl;
 421                         this->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to open config file %s", ConfigFileName.c_str());
 422                         Exit(EXIT_STATUS_CONFIG);
 423                 }
 424         }
 425
 426         std::cout << con_green << "InspIRCd - Internet Relay Chat Daemon" << con_reset << std::endl;
 427         std::cout << "For contributors & authors: " << con_green << "See /INFO Output" << con_reset << std::endl;
 428
 429 #ifndef _WIN32
 430         if (!do_root)
 431                 this->CheckRoot();
 432         else
 433         {
 434                 std::cout << "* WARNING * WARNING * WARNING * WARNING * WARNING *" << std::endl
 435                 << "YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED" << std::endl
 436                 << "AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED" << std::endl
 437                 << "OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR" << std::endl
 438                 << "SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN" << std::endl
 439                 << "TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART" << std::endl
 440                 << "THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!" << std::endl << std::endl
 441                 << "InspIRCd starting in 20 seconds, ctrl+c to abort..." << std::endl;
 442                 sleep(20);
 443         }
 444 #endif
 445
 446         this->SetSignals();
 447
 448         if (!Config->cmdline.nofork)
 449         {
 450                 if (!this->DaemonSeed())
 451                 {
 452                         std::cout << "ERROR: could not go into daemon mode. Shutting down." << std::endl;
 453                         Logs->Log("STARTUP", LOG_DEFAULT, "ERROR: could not go into daemon mode. Shutting down.");
 454                         Exit(EXIT_STATUS_FORK);
 455                 }
 456         }
 457
 458         SocketEngine::RecoverFromFork();
 459
 460         /* During startup we read the configuration now, not in
 461          * a seperate thread
 462          */
 463         this->Config->Read();
 464         this->Config->Apply(NULL, "");
 465         Logs->OpenFileLogs();
 466
 467         // If we don't have a SID, generate one based on the server name and the server description
 468         if (Config->sid.empty())
 469                 Config->sid = UIDGenerator::GenerateSID(Config->ServerName, Config->ServerDesc);
 470
 471         // Initialize the UID generator with our sid
 472         this->UIDGen.init(Config->sid);
 473
 474         // Create the server user for this server
 475         this->FakeClient = new FakeUser(Config->sid, Config->ServerName, Config->ServerDesc);
 476
 477         // This is needed as all new XLines are marked pending until ApplyLines() is called
 478         this->XLines->ApplyLines();
 479
 480         FailedPortList pl;
 481         int bounditems = BindPorts(pl);
 482
 483         std::cout << std::endl;
 484
 485         this->Modules->LoadAll();
 486
 487         // Build ISupport as ModuleManager::LoadAll() does not do it
 488         this->ISupport.Build();
 489
 490         if (!pl.empty())
 491         {
 492                 std::cout << std::endl << "WARNING: Not all your client ports could be bound -- " << std::endl << "starting anyway with " << bounditems
 493                         << " of " << bounditems + (int)pl.size() << " client ports bound." << std::endl << std::endl;
 494                 std::cout << "The following port(s) failed to bind:" << std::endl << std::endl;
 495                 int j = 1;
 496                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 497                 {
 498                         std::cout << j << ".\tAddress: " << i->first.str() << " \tReason: " << strerror(i->second) << std::endl;
 499                 }
 500
 501                 std::cout << std::endl << "Hint: Try using a public IP instead of blank or *" << std::endl;
 502         }
 503
 504         std::cout << "InspIRCd is now running as '" << Config->ServerName << "'[" << Config->GetSID() << "] with " << SocketEngine::GetMaxFds() << " max open sockets" << std::endl;
 505
 506 #ifndef _WIN32
 507         if (!Config->cmdline.nofork)
 508         {
 509                 if (kill(getppid(), SIGTERM) == -1)
 510                 {
 511                         std::cout << "Error killing parent process: " << strerror(errno) << std::endl;
 512                         Logs->Log("STARTUP", LOG_DEFAULT, "Error killing parent process: %s",strerror(errno));
 513                 }
 514         }
 515
 516         /* Explicitly shut down stdio's stdin/stdout/stderr.
 517          *
 518          * The previous logic here was to only do this if stdio was connected to a controlling
 519          * terminal.  However, we must do this always to avoid information leaks and other
 520          * problems related to stdio.
 521          *
 522          * The only exception is if we are in debug mode.
 523          *
 524          *    -- nenolod
 525          */
 526         if ((!do_nofork) && (!Config->cmdline.forcedebug))
 527         {
 528                 int fd = open("/dev/null", O_RDWR);
 529
 530                 fclose(stdin);
 531                 fclose(stderr);
 532                 fclose(stdout);
 533
 534                 if (dup2(fd, STDIN_FILENO) < 0)
 535                         Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdin.");
 536                 if (dup2(fd, STDOUT_FILENO) < 0)
 537                         Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdout.");
 538                 if (dup2(fd, STDERR_FILENO) < 0)
 539                         Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stderr.");
 540                 close(fd);
 541         }
 542         else
 543         {
 544                 Logs->Log("STARTUP", LOG_DEFAULT, "Keeping pseudo-tty open as we are running in the foreground.");
 545         }
 546 #else
 547         /* Set win32 service as running, if we are running as a service */
 548         SetServiceRunning();
 549
 550         // Handle forking
 551         if(!do_nofork)
 552         {
 553                 FreeConsole();
 554         }
 555
 556         QueryPerformanceFrequency(&stats.QPFrequency);
 557 #endif
 558
 559         WritePID(Config->PID);
 560         DropRoot();
 561
 562         Logs->Log("STARTUP", LOG_DEFAULT, "Startup complete as '%s'[%s], %lu max open sockets", Config->ServerName.c_str(),Config->GetSID().c_str(), SocketEngine::GetMaxFds());
 563 }
 564
 565 void InspIRCd::UpdateTime()
 566 {
 567 #ifdef _WIN32
 568         SYSTEMTIME st;
 569         GetSystemTime(&st);
 570
 571         TIME.tv_sec = time(NULL);
 572         TIME.tv_nsec = st.wMilliseconds;
 573 #else
 574         #ifdef HAS_CLOCK_GETTIME
 575                 clock_gettime(CLOCK_REALTIME, &TIME);
 576         #else
 577                 struct timeval tv;
 578                 gettimeofday(&tv, NULL);
 579                 TIME.tv_sec = tv.tv_sec;
 580                 TIME.tv_nsec = tv.tv_usec * 1000;
 581         #endif
 582 #endif
 583 }
 584
 585 void InspIRCd::Run()
 586 {
 587         UpdateTime();
 588         time_t OLDTIME = TIME.tv_sec;
 589
 590         while (true)
 591         {
 592 #ifndef _WIN32
 593                 static rusage ru;
 594 #endif
 595
 596                 /* Check if there is a config thread which has finished executing but has not yet been freed */
 597                 if (this->ConfigThread && this->ConfigThread->IsDone())
 598                 {
 599                         /* Rehash has completed */
 600                         this->Logs->Log("CONFIG", LOG_DEBUG, "Detected ConfigThread exiting, tidying up...");
 601
 602                         this->ConfigThread->Finish();
 603
 604                         ConfigThread->join();
 605                         delete ConfigThread;
 606                         ConfigThread = NULL;
 607                 }
 608
 609                 UpdateTime();
 610
 611                 /* Run background module timers every few seconds
 612                  * (the docs say modules shouldnt rely on accurate
 613                  * timing using this event, so we dont have to
 614                  * time this exactly).
 615                  */
 616                 if (TIME.tv_sec != OLDTIME)
 617                 {
 618 #ifndef _WIN32
 619                         getrusage(RUSAGE_SELF, &ru);
 620                         stats.LastSampled = TIME;
 621                         stats.LastCPU = ru.ru_utime;
 622 #else
 623                         if(QueryPerformanceCounter(&stats.LastSampled))
 624                         {
 625                                 FILETIME CreationTime;
 626                                 FILETIME ExitTime;
 627                                 FILETIME KernelTime;
 628                                 FILETIME UserTime;
 629                                 GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime);
 630                                 stats.LastCPU.dwHighDateTime = KernelTime.dwHighDateTime + UserTime.dwHighDateTime;
 631                                 stats.LastCPU.dwLowDateTime = KernelTime.dwLowDateTime + UserTime.dwLowDateTime;
 632                         }
 633 #endif
 634
 635                         if (Config->TimeSkipWarn)
 636                         {
 637                                 time_t timediff = TIME.tv_sec - OLDTIME;
 638
 639                                 if (timediff > Config->TimeSkipWarn)
 640                                         SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped forwards by %lu seconds!", timediff);
 641
 642                                 else if (timediff < -Config->TimeSkipWarn)
 643                                         SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped backwards by %lu seconds!", labs(timediff));
 644                         }
 645
 646                         OLDTIME = TIME.tv_sec;
 647
 648                         if ((TIME.tv_sec % 3600) == 0)
 649                         {
 650                                 FOREACH_MOD(OnGarbageCollect, ());
 651
 652                                 // HACK: ELines are not expired properly at the moment but it can't be fixed as
 653                                 // the 2.0 XLine system is a spaghetti nightmare. Instead we skip over expired
 654                                 // ELines in XLineManager::CheckELines() and expire them here instead.
 655                                 XLines->GetAll("E");
 656                         }
 657
 658                         Timers.TickTimers(TIME.tv_sec);
 659                         Users->DoBackgroundUserStuff();
 660
 661                         if ((TIME.tv_sec % 5) == 0)
 662                         {
 663                                 FOREACH_MOD(OnBackgroundTimer, (TIME.tv_sec));
 664                                 SNO->FlushSnotices();
 665                         }
 666                 }
 667
 668                 /* Call the socket engine to wait on the active
 669                  * file descriptors. The socket engine has everything's
 670                  * descriptors in its list... dns, modules, users,
 671                  * servers... so its nice and easy, just one call.
 672                  * This will cause any read or write events to be
 673                  * dispatched to their handlers.
 674                  */
 675                 SocketEngine::DispatchTrialWrites();
 676                 SocketEngine::DispatchEvents();
 677
 678                 /* if any users were quit, take them out */
 679                 GlobalCulls.Apply();
 680                 AtomicActions.Run();
 681
 682                 if (s_signal)
 683                 {
 684                         this->SignalHandler(s_signal);
 685                         s_signal = 0;
 686                 }
 687         }
 688 }
 689
 690 sig_atomic_t InspIRCd::s_signal = 0;
 691
 692 void InspIRCd::SetSignal(int signal)
 693 {
 694         s_signal = signal;
 695 }
 696
 697 /* On posix systems, the flow of the program starts right here, with
 698  * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
 699  * defines smain() and the real main() is in the service code under
 700  * win32service.cpp. This allows the service control manager to control
 701  * the process where we are running as a windows service.
 702  */
 703 ENTRYPOINT
 704 {
 705         new InspIRCd(argc, argv);
 706         ServerInstance->Run();
 707         delete ServerInstance;
 708         return 0;
 709 }