-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "inspircd.h"\r#include "configreader.h"\r#include <signal.h>\r\r#ifndef WIN32\r#include <dirent.h>\r#include <unistd.h>\r#include <sys/resource.h>\r#include <dlfcn.h>\r#include <getopt.h>\r\r/* Some systems don't define RUSAGE_SELF. This should fix them. */\r#ifndef RUSAGE_SELF\r #define RUSAGE_SELF 0\r#endif\r\r#endif\r\r#include <exception>\r#include <fstream>\r#include "modules.h"\r#include "mode.h"\r#include "xline.h"\r#include "socketengine.h"\r#include "inspircd_se_config.h"\r#include "socket.h"\r#include "typedefs.h"\r#include "command_parse.h"\r#include "exitcodes.h"\r\r#ifdef WIN32\r\r/* This MUST remain static and delcared outside the class, so that WriteProcessMemory can reference it properly */\rstatic DWORD owner_processid = 0;\r\rDWORD WindowsForkStart(InspIRCd * Instance)\r{\r /* Windows implementation of fork() :P */\r\r char module[MAX_PATH];\r if(!GetModuleFileName(NULL, module, MAX_PATH))\r {\r printf("GetModuleFileName() failed.\n");\r return false;\r }\r\r STARTUPINFO startupinfo;\r PROCESS_INFORMATION procinfo;\r ZeroMemory(&startupinfo, sizeof(STARTUPINFO));\r ZeroMemory(&procinfo, sizeof(PROCESS_INFORMATION));\r\r // Fill in the startup info struct\r GetStartupInfo(&startupinfo);\r\r /* Default creation flags create the processes suspended */\r DWORD startupflags = CREATE_SUSPENDED;\r\r /* On windows 2003/XP and above, we can use the value\r * CREATE_PRESERVE_CODE_AUTHZ_LEVEL which gives more access\r * to the process which we may require on these operating systems.\r */\r OSVERSIONINFO vi;\r vi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);\r GetVersionEx(&vi);\r if ((vi.dwMajorVersion >= 5) && (vi.dwMinorVersion > 0))\r startupflags |= CREATE_PRESERVE_CODE_AUTHZ_LEVEL;\r\r // Launch our "forked" process.\r BOOL bSuccess = CreateProcess ( module, // Module (exe) filename\r strdup(GetCommandLine()), // Command line (exe plus parameters from the OS)\r // NOTE: We cannot return the direct value of the\r // GetCommandLine function here, as the pointer is\r // passed straight to the child process, and will be\r // invalid once we exit as it goes out of context.\r // strdup() seems ok, though.\r 0, // PROCESS_SECURITY_ATTRIBUTES\r 0, // THREAD_SECURITY_ATTRIBUTES\r TRUE, // We went to inherit handles.\r startupflags, // Allow us full access to the process and suspend it.\r 0, // ENVIRONMENT\r 0, // CURRENT_DIRECTORY\r &startupinfo, // startup info\r &procinfo); // process info\r\r if(!bSuccess)\r {\r printf("CreateProcess() error: %s\n", dlerror());\r return false;\r }\r\r // Set the owner process id in the target process.\r SIZE_T written = 0;\r DWORD pid = GetCurrentProcessId();\r if(!WriteProcessMemory(procinfo.hProcess, &owner_processid, &pid, sizeof(DWORD), &written) || written != sizeof(DWORD))\r {\r printf("WriteProcessMemory() failed: %s\n", dlerror());\r return false;\r }\r\r // Resume the other thread (let it start)\r ResumeThread(procinfo.hThread);\r\r // Wait for the new process to kill us. If there is some error, the new process will end and we will end up at the next line.\r WaitForSingleObject(procinfo.hProcess, INFINITE);\r\r // If we hit this it means startup failed, default to 14 if this fails.\r DWORD ExitCode = 14;\r GetExitCodeProcess(procinfo.hProcess, &ExitCode);\r CloseHandle(procinfo.hThread);\r CloseHandle(procinfo.hProcess);\r return ExitCode;\r}\r\rvoid WindowsForkKillOwner(InspIRCd * Instance)\r{\r HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, owner_processid);\r if(!hProcess || !owner_processid)\r {\r printf("Could not open process id %u: %s.\n", owner_processid, dlerror());\r Instance->Exit(14);\r }\r\r // die die die\r if(!TerminateProcess(hProcess, 0))\r {\r printf("Could not TerminateProcess(): %s\n", dlerror());\r Instance->Exit(14);\r }\r\r CloseHandle(hProcess);\r}\r\r#endif\r\rusing irc::sockets::NonBlocking;\rusing irc::sockets::Blocking;\rusing irc::sockets::insp_ntoa;\rusing irc::sockets::insp_inaddr;\rusing irc::sockets::insp_sockaddr;\r\rInspIRCd* SI = NULL;\r\r/* Burlex: Moved from exitcodes.h -- due to duplicate symbols */\rconst char* ExitCodes[] =\r{\r "No error", /* 0 */\r "DIE command", /* 1 */\r "execv() failed", /* 2 */\r "Internal error", /* 3 */\r "Config file error", /* 4 */\r "Logfile error", /* 5 */\r "POSIX fork failed", /* 6 */\r "Bad commandline parameters", /* 7 */\r "No ports could be bound", /* 8 */\r "Can't write PID file", /* 9 */\r "SocketEngine could not initialize", /* 10 */\r "Refusing to start up as root", /* 11 */\r "Found a <die> tag!", /* 12 */\r "Couldn't load module on startup", /* 13 */\r "Could not create windows forked process", /* 14 */\r "Received SIGTERM", /* 15 */\r};\r\rvoid InspIRCd::AddServerName(const std::string &servername)\r{\r servernamelist::iterator itr = servernames.begin();\r for(; itr != servernames.end(); ++itr)\r if(**itr == servername)\r return;\r\r string * ns = new string(servername);\r servernames.push_back(ns);\r}\r\rconst char* InspIRCd::FindServerNamePtr(const std::string &servername)\r{\r servernamelist::iterator itr = servernames.begin();\r for(; itr != servernames.end(); ++itr)\r if(**itr == servername)\r return (*itr)->c_str();\r\r servernames.push_back(new string(servername));\r itr = --servernames.end();\r return (*itr)->c_str();\r}\r\rbool InspIRCd::FindServerName(const std::string &servername)\r{\r servernamelist::iterator itr = servernames.begin();\r for(; itr != servernames.end(); ++itr)\r if(**itr == servername)\r return true;\r return false;\r}\r\rvoid InspIRCd::Exit(int status)\r{\r#ifdef WINDOWS\r CloseIPC();\r#endif\r if (SI)\r {\r SI->SendError("Exiting with status " + ConvToStr(status) + " (" + std::string(ExitCodes[status]) + ")");\r SI->Cleanup();\r }\r exit (status);\r}\r\rvoid InspIRCd::Cleanup()\r{\r std::vector<std::string> mymodnames;\r int MyModCount = this->GetModuleCount();\r\r for (unsigned int i = 0; i < Config->ports.size(); i++)\r {\r /* This calls the constructor and closes the listening socket */\r delete Config->ports[i];\r }\r\r Config->ports.clear();\r\r /* Close all client sockets, or the new process inherits them */\r for (std::vector<userrec*>::const_iterator i = this->local_users.begin(); i != this->local_users.end(); i++)\r {\r (*i)->SetWriteError("Server shutdown");\r (*i)->CloseSocket();\r }\r\r /* We do this more than once, so that any service providers get a\r * chance to be unhooked by the modules using them, but then get\r * a chance to be removed themsleves.\r */\r for (int tries = 0; tries < 3; tries++)\r {\r MyModCount = this->GetModuleCount();\r mymodnames.clear();\r\r /* Unload all modules, so they get a chance to clean up their listeners */\r for (int j = 0; j <= MyModCount; j++)\r mymodnames.push_back(Config->module_names[j]);\r\r for (int k = 0; k <= MyModCount; k++)\r this->UnloadModule(mymodnames[k].c_str());\r }\r\r /* Close logging */\r this->Logger->Close();\r\r /* Cleanup Server Names */\r for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr)\r delete (*itr);\r\r#ifdef WINDOWS\r /* WSACleanup */\r WSACleanup();\r#endif\r}\r\rvoid InspIRCd::Restart(const std::string &reason)\r{\r /* SendError flushes each client's queue,\r * regardless of writeability state\r */\r this->SendError(reason);\r\r this->Cleanup();\r\r /* Figure out our filename (if theyve renamed it, we're boned) */\r std::string me;\r\r#ifdef WINDOWS\r char module[MAX_PATH];\r if (GetModuleFileName(NULL, module, MAX_PATH))\r me = module;\r#else\r me = Config->MyDir + "/inspircd";\r#endif\r\r if (execv(me.c_str(), Config->argv) == -1)\r {\r /* Will raise a SIGABRT if not trapped */\r throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno));\r }\r}\r\rvoid InspIRCd::Start()\r{\r printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);\r printf_c("(C) InspIRCd Development Team.\033[0m\n\n");\r printf_c("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special, pippijn, peavey, Burlex\033[0m\n");\r printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");\r}\r\rvoid InspIRCd::Rehash(int status)\r{\r SI->WriteOpers("*** Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(SI->ConfigFileName));\r SI->CloseLog();\r SI->OpenLog(SI->Config->argv, SI->Config->argc);\r SI->RehashUsersAndChans();\r FOREACH_MOD_I(SI, I_OnGarbageCollect, OnGarbageCollect());\r SI->Config->Read(false,NULL);\r SI->ResetMaxBans();\r SI->Res->Rehash();\r FOREACH_MOD_I(SI,I_OnRehash,OnRehash(NULL,""));\r SI->BuildISupport();\r}\r\rvoid InspIRCd::ResetMaxBans()\r{\r for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++)\r i->second->ResetMaxBans();\r}\r\r\r/** Because hash_map doesnt free its buckets when we delete items (this is a 'feature')\r * we must occasionally rehash the hash (yes really).\r * We do this by copying the entries from the old hash to a new hash, causing all\r * empty buckets to be weeded out of the hash. We dont do this on a timer, as its\r * very expensive, so instead we do it when the user types /REHASH and expects a\r * short delay anyway.\r */\rvoid InspIRCd::RehashUsersAndChans()\r{\r user_hash* old_users = this->clientlist;\r chan_hash* old_chans = this->chanlist;\r\r this->clientlist = new user_hash();\r this->chanlist = new chan_hash();\r\r for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++)\r this->clientlist->insert(*n);\r\r delete old_users;\r\r for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++)\r this->chanlist->insert(*n);\r\r delete old_chans;\r}\r\rvoid InspIRCd::CloseLog()\r{\r this->Logger->Close();\r}\r\rvoid InspIRCd::SetSignals()\r{\r#ifndef WIN32\r signal(SIGALRM, SIG_IGN);\r signal(SIGHUP, InspIRCd::Rehash);\r signal(SIGPIPE, SIG_IGN);\r signal(SIGCHLD, SIG_IGN);\r#endif\r signal(SIGTERM, InspIRCd::Exit);\r}\r\rvoid InspIRCd::QuickExit(int status)\r{\r exit(0);\r}\r\rbool InspIRCd::DaemonSeed()\r{\r#ifdef WINDOWS\r printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId());\r return true;\r#else\r signal(SIGTERM, InspIRCd::QuickExit);\r\r int childpid;\r if ((childpid = fork ()) < 0)\r return false;\r else if (childpid > 0)\r {\r /* We wait here for the child process to kill us,\r * so that the shell prompt doesnt come back over\r * the output.\r * Sending a kill with a signal of 0 just checks\r * if the child pid is still around. If theyre not,\r * they threw an error and we should give up.\r */\r while (kill(childpid, 0) != -1)\r sleep(1);\r exit(0);\r }\r setsid ();\r umask (007);\r printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());\r\r signal(SIGTERM, InspIRCd::Exit);\r\r rlimit rl;\r if (getrlimit(RLIMIT_CORE, &rl) == -1)\r {\r this->Log(DEFAULT,"Failed to getrlimit()!");\r return false;\r }\r else\r {\r rl.rlim_cur = rl.rlim_max;\r if (setrlimit(RLIMIT_CORE, &rl) == -1)\r this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");\r }\r\r return true;\r#endif\r}\r\rvoid InspIRCd::WritePID(const std::string &filename)\r{\r std::string fname = (filename.empty() ? "inspircd.pid" : filename);\r if (*(fname.begin()) != '/')\r {\r std::string::size_type pos;\r std::string confpath = this->ConfigFileName;\r if ((pos = confpath.rfind("/")) != std::string::npos)\r {\r /* Leaves us with just the path */\r fname = confpath.substr(0, pos) + std::string("/") + fname;\r }\r }\r std::ofstream outfile(fname.c_str());\r if (outfile.is_open())\r {\r outfile << getpid();\r outfile.close();\r }\r else\r {\r printf("Failed to write PID-file '%s', exiting.\n",fname.c_str());\r this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str());\r Exit(EXIT_STATUS_PID);\r }\r}\r\rstd::string InspIRCd::GetRevision()\r{\r return REVISION;\r}\r\rInspIRCd::InspIRCd(int argc, char** argv)\r : ModCount(-1), GlobalCulls(this)\r{\r int found_ports = 0;\r FailedPortList pl;\r int do_version = 0, do_nofork = 0, do_debug = 0, do_nolog = 0, do_root = 0; /* flag variables */\r char c = 0;\r\r modules.resize(255);\r factory.resize(255);\r memset(&server, 0, sizeof(server));\r memset(&client, 0, sizeof(client));\r\r this->unregistered_count = 0;\r\r this->clientlist = new user_hash();\r this->chanlist = new chan_hash();\r\r this->Config = new ServerConfig(this);\r\r this->Config->argv = argv;\r this->Config->argc = argc;\r\r chdir(Config->GetFullProgDir().c_str());\r\r this->Config->opertypes.clear();\r this->Config->operclass.clear();\r this->SNO = new SnomaskManager(this);\r this->TIME = this->OLDTIME = this->startup_time = time(NULL);\r this->time_delta = 0;\r this->next_call = this->TIME + 3;\r srand(this->TIME);\r\r *this->LogFileName = 0;\r strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF);\r\r struct option longopts[] =\r {\r { "nofork", no_argument, &do_nofork, 1 },\r { "logfile", required_argument, NULL, 'f' },\r { "config", required_argument, NULL, 'c' },\r { "debug", no_argument, &do_debug, 1 },\r { "nolog", no_argument, &do_nolog, 1 },\r { "runasroot", no_argument, &do_root, 1 },\r { "version", no_argument, &do_version, 1 },\r { 0, 0, 0, 0 }\r };\r\r while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1)\r {\r switch (c)\r {\r case 'f':\r /* Log filename was set */\r strlcpy(LogFileName, optarg, MAXBUF);\r break;\r case 'c':\r /* Config filename was set */\r strlcpy(ConfigFileName, optarg, MAXBUF);\r break;\r case 0:\r /* getopt_long_only() set an int variable, just keep going */\r break;\r default:\r /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */\r printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile <filename>] [--runasroot] [--version] [--config <config>]\n", argv[0]);\r Exit(EXIT_STATUS_ARGV);\r break;\r }\r }\r\r if (do_version)\r {\r printf("\n%s r%s\n", VERSION, REVISION);\r Exit(EXIT_STATUS_NOERROR);\r }\r\r#ifdef WIN32\r\r // Handle forking\r if(!do_nofork && !owner_processid)\r {\r DWORD ExitCode = WindowsForkStart(this);\r if(ExitCode)\r Exit(ExitCode);\r }\r\r // Set up winsock\r WSADATA wsadata;\r WSAStartup(MAKEWORD(2,0), &wsadata);\r\r#endif\r if (!ServerConfig::FileExists(this->ConfigFileName))\r {\r printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName);\r this->Log(DEFAULT,"Unable to open config file %s", this->ConfigFileName);\r Exit(EXIT_STATUS_CONFIG);\r }\r\r this->Start();\r\r /* Set the finished argument values */\r Config->nofork = do_nofork;\r Config->forcedebug = do_debug;\r Config->writelog = !do_nolog;\r\r strlcpy(Config->MyExecutable,argv[0],MAXBUF);\r\r this->OpenLog(argv, argc);\r\r this->stats = new serverstats();\r this->Timers = new TimerManager(this);\r this->Parser = new CommandParser(this);\r this->XLines = new XLineManager(this);\r Config->ClearStack();\r Config->Read(true, NULL);\r\r if (!do_root)\r this->CheckRoot();\r else\r {\r printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n");\r printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n");\r printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n");\r printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n");\r printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n");\r printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n");\r printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n");\r printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n");\r sleep(20);\r }\r\r this->SetSignals();\r\r if (!Config->nofork)\r {\r if (!this->DaemonSeed())\r {\r printf("ERROR: could not go into daemon mode. Shutting down.\n");\r Log(DEFAULT,"ERROR: could not go into daemon mode. Shutting down.");\r Exit(EXIT_STATUS_FORK);\r }\r }\r\r\r /* Because of limitations in kqueue on freebsd, we must fork BEFORE we\r * initialize the socket engine.\r */\r SocketEngineFactory* SEF = new SocketEngineFactory();\r SE = SEF->Create(this);\r delete SEF;\r\r this->Modes = new ModeParser(this);\r this->AddServerName(Config->ServerName);\r CheckDie();\r int bounditems = BindPorts(true, found_ports, pl);\r\r for(int t = 0; t < 255; t++)\r Config->global_implementation[t] = 0;\r\r memset(&Config->implement_lists,0,sizeof(Config->implement_lists));\r\r printf("\n");\r\r this->Res = new DNS(this);\r\r this->LoadAllModules();\r /* Just in case no modules were loaded - fix for bug #101 */\r this->BuildISupport();\r InitializeDisabledCommands(Config->DisabledCommands, this);\r\r if ((Config->ports.size() == 0) && (found_ports > 0))\r {\r printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");\r Log(DEFAULT,"ERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?");\r Exit(EXIT_STATUS_BIND);\r }\r\r if (Config->ports.size() != (unsigned int)found_ports)\r {\r printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports);\r printf("The following port(s) failed to bind:\n");\r int j = 1;\r for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)\r {\r printf("%d.\tIP: %s\tPort: %lu\n", j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);\r }\r }\r#ifndef WINDOWS\r if (!Config->nofork)\r {\r if (kill(getppid(), SIGTERM) == -1)\r {\r printf("Error killing parent process: %s\n",strerror(errno));\r Log(DEFAULT,"Error killing parent process: %s",strerror(errno));\r }\r }\r\r if (isatty(0) && isatty(1) && isatty(2))\r {\r /* We didn't start from a TTY, we must have started from a background process -\r * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont\r * close stdin/stdout\r */\r if (!do_nofork)\r {\r fclose(stdin);\r fclose(stderr);\r fclose(stdout);\r }\r else\r {\r Log(DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");\r }\r }\r#else\r InitIPC();\r if(!Config->nofork)\r {\r WindowsForkKillOwner(this);\r FreeConsole();\r }\r#endif\r printf("\nInspIRCd is now running!\n");\r Log(DEFAULT,"Startup complete.");\r\r this->WritePID(Config->PID);\r}\r\rstd::string InspIRCd::GetVersionString()\r{\r char versiondata[MAXBUF];\r char dnsengine[] = "singlethread-object";\r\r if (*Config->CustomVersion)\r {\r snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);\r }\r else\r {\r snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%s,%s,%s]",VERSION,Config->ServerName,SYSTEM,REVISION,SE->GetName().c_str(),dnsengine);\r }\r return versiondata;\r}\r\rchar* InspIRCd::ModuleError()\r{\r return MODERR;\r}\r\rvoid InspIRCd::EraseFactory(int j)\r{\r int v = 0;\r for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)\r {\r if (v == j)\r {\r delete *t;\r factory.erase(t);\r factory.push_back(NULL);\r return;\r }\r v++;\r }\r}\r\rvoid InspIRCd::EraseModule(int j)\r{\r int v1 = 0;\r for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++)\r {\r if (v1 == j)\r {\r DELETE(*m);\r modules.erase(m);\r modules.push_back(NULL);\r break;\r }\r v1++;\r }\r int v2 = 0;\r for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)\r {\r if (v2 == j)\r {\r Config->module_names.erase(v);\r break;\r }\r v2++;\r }\r\r}\r\rvoid InspIRCd::MoveTo(std::string modulename,int slot)\r{\r unsigned int v2 = 256;\r for (unsigned int v = 0; v < Config->module_names.size(); v++)\r {\r if (Config->module_names[v] == modulename)\r {\r // found an instance, swap it with the item at the end\r v2 = v;\r break;\r }\r }\r if ((v2 != (unsigned int)slot) && (v2 < 256))\r {\r // Swap the module names over\r Config->module_names[v2] = Config->module_names[slot];\r Config->module_names[slot] = modulename;\r // now swap the module factories\r ircd_module* temp = factory[v2];\r factory[v2] = factory[slot];\r factory[slot] = temp;\r // now swap the module objects\r Module* temp_module = modules[v2];\r modules[v2] = modules[slot];\r modules[slot] = temp_module;\r // now swap the implement lists (we dont\r // need to swap the global or recount it)\r for (int n = 0; n < 255; n++)\r {\r char x = Config->implement_lists[v2][n];\r Config->implement_lists[v2][n] = Config->implement_lists[slot][n];\r Config->implement_lists[slot][n] = x;\r }\r }\r}\r\rvoid InspIRCd::MoveAfter(std::string modulename, std::string after)\r{\r for (unsigned int v = 0; v < Config->module_names.size(); v++)\r {\r if (Config->module_names[v] == after)\r {\r MoveTo(modulename, v);\r return;\r }\r }\r}\r\rvoid InspIRCd::MoveBefore(std::string modulename, std::string before)\r{\r for (unsigned int v = 0; v < Config->module_names.size(); v++)\r {\r if (Config->module_names[v] == before)\r {\r if (v > 0)\r {\r MoveTo(modulename, v-1);\r }\r else\r {\r MoveTo(modulename, v);\r }\r return;\r }\r }\r}\r\rvoid InspIRCd::MoveToFirst(std::string modulename)\r{\r MoveTo(modulename,0);\r}\r\rvoid InspIRCd::MoveToLast(std::string modulename)\r{\r MoveTo(modulename,this->GetModuleCount());\r}\r\rvoid InspIRCd::BuildISupport()\r{\r // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...\r std::stringstream v;\r v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES-1 << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " MAP MAXCHANNELS=" << Config->MaxChans << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;\r v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";\r v << MAXAWAY << " CHANMODES=" << this->Modes->ChanModes() << " FNC NETWORK=" << Config->Network << " MAXPARA=32 ELIST=MU";\r Config->data005 = v.str();\r FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));\r Config->Update005();\r}\r\rbool InspIRCd::UnloadModule(const char* filename)\r{\r std::string filename_str = filename;\r for (unsigned int j = 0; j != Config->module_names.size(); j++)\r {\r if (Config->module_names[j] == filename_str)\r {\r if (modules[j]->GetVersion().Flags & VF_STATIC)\r {\r this->Log(DEFAULT,"Failed to unload STATIC module %s",filename);\r snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");\r return false;\r }\r std::pair<int,std::string> intercount = GetInterfaceInstanceCount(modules[j]);\r if (intercount.first > 0)\r {\r this->Log(DEFAULT,"Failed to unload module %s, being used by %d other(s) via interface '%s'",filename, intercount.first, intercount.second.c_str());\r snprintf(MODERR,MAXBUF,"Module not unloadable (Still in use by %d other module%s which %s using its interface '%s') -- unload dependent modules first!",\r intercount.first,\r intercount.first > 1 ? "s" : "",\r intercount.first > 1 ? "are" : "is",\r intercount.second.c_str());\r return false;\r }\r /* Give the module a chance to tidy out all its metadata */\r for (chan_hash::iterator c = this->chanlist->begin(); c != this->chanlist->end(); c++)\r {\r modules[j]->OnCleanup(TYPE_CHANNEL,c->second);\r }\r for (user_hash::iterator u = this->clientlist->begin(); u != this->clientlist->end(); u++)\r {\r modules[j]->OnCleanup(TYPE_USER,u->second);\r }\r\r /* Tidy up any dangling resolvers */\r this->Res->CleanResolvers(modules[j]);\r\r FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));\r\r for(int t = 0; t < 255; t++)\r {\r Config->global_implementation[t] -= Config->implement_lists[j][t];\r }\r\r /* We have to renumber implement_lists after unload because the module numbers change!\r */\r for(int j2 = j; j2 < 254; j2++)\r {\r for(int t = 0; t < 255; t++)\r {\r Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];\r }\r }\r\r // found the module\r Parser->RemoveCommands(filename);\r this->EraseModule(j);\r this->EraseFactory(j);\r this->Log(DEFAULT,"Module %s unloaded",filename);\r this->ModCount--;\r BuildISupport();\r return true;\r }\r }\r this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);\r snprintf(MODERR,MAXBUF,"Module not loaded");\r return false;\r}\r\rbool InspIRCd::LoadModule(const char* filename)\r{\r /* Do we have a glob pattern in the filename?\r * The user wants to load multiple modules which\r * match the pattern.\r */\r if (strchr(filename,'*') || (strchr(filename,'?')))\r {\r int n_match = 0;\r DIR* library = opendir(Config->ModPath);\r if (library)\r {\r /* Try and locate and load all modules matching the pattern */\r dirent* entry = NULL;\r while ((entry = readdir(library)))\r {\r if (this->MatchText(entry->d_name, filename))\r {\r if (!this->LoadModule(entry->d_name))\r n_match++;\r }\r }\r closedir(library);\r }\r /* Loadmodule will now return false if any one of the modules failed\r * to load (but wont abort when it encounters a bad one) and when 1 or\r * more modules were actually loaded.\r */\r return (n_match > 0);\r }\r\r char modfile[MAXBUF];\r snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);\r std::string filename_str = filename;\r\r if (!ServerConfig::DirValid(modfile))\r {\r this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile);\r snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);\r return false;\r }\r if (ServerConfig::FileExists(modfile))\r {\r\r for (unsigned int j = 0; j < Config->module_names.size(); j++)\r {\r if (Config->module_names[j] == filename_str)\r {\r this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);\r snprintf(MODERR,MAXBUF,"Module already loaded");\r return false;\r }\r }\r Module* m = NULL;\r ircd_module* a = NULL;\r try\r {\r a = new ircd_module(this, modfile);\r factory[this->ModCount+1] = a;\r if (factory[this->ModCount+1]->LastError())\r {\r this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError());\r snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError());\r return false;\r }\r if ((long)factory[this->ModCount+1]->factory != -1)\r {\r m = factory[this->ModCount+1]->factory->CreateModule(this);\r\r Version v = m->GetVersion();\r\r if (v.API != API_VERSION)\r {\r delete m;\r this->Log(DEFAULT,"Unable to load %s: Incorrect module API version: %d (our version: %d)",modfile,v.API,API_VERSION);\r snprintf(MODERR,MAXBUF,"Loader/Linker error: Incorrect module API version: %d (our version: %d)",v.API,API_VERSION);\r return false;\r }\r else\r {\r this->Log(DEFAULT,"New module introduced: %s (API version %d, Module version %d.%d.%d.%d)%s", filename, v.API, v.Major, v.Minor, v.Revision, v.Build, (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));\r }\r\r modules[this->ModCount+1] = m;\r /* save the module and the module's classfactory, if\r * this isnt done, random crashes can occur :/ */\r Config->module_names.push_back(filename);\r\r char* x = &Config->implement_lists[this->ModCount+1][0];\r for(int t = 0; t < 255; t++)\r x[t] = 0;\r\r modules[this->ModCount+1]->Implements(x);\r\r for(int t = 0; t < 255; t++)\r Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t];\r }\r else\r {\r this->Log(DEFAULT,"Unable to load %s",modfile);\r snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint.");\r return false;\r }\r }\r catch (CoreException& modexcept)\r {\r this->Log(DEFAULT,"Unable to load %s: %s",modfile,modexcept.GetReason());\r snprintf(MODERR,MAXBUF,"Factory function of %s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());\r return false;\r }\r }\r else\r {\r this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);\r snprintf(MODERR,MAXBUF,"Module file could not be found");\r return false;\r }\r this->ModCount++;\r FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str));\r // now work out which modules, if any, want to move to the back of the queue,\r // and if they do, move them there.\r std::vector<std::string> put_to_back;\r std::vector<std::string> put_to_front;\r std::map<std::string,std::string> put_before;\r std::map<std::string,std::string> put_after;\r for (unsigned int j = 0; j < Config->module_names.size(); j++)\r {\r if (modules[j]->Prioritize() == PRIORITY_LAST)\r put_to_back.push_back(Config->module_names[j]);\r else if (modules[j]->Prioritize() == PRIORITY_FIRST)\r put_to_front.push_back(Config->module_names[j]);\r else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)\r put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];\r else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)\r put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];\r }\r for (unsigned int j = 0; j < put_to_back.size(); j++)\r MoveToLast(put_to_back[j]);\r for (unsigned int j = 0; j < put_to_front.size(); j++)\r MoveToFirst(put_to_front[j]);\r for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)\r MoveBefore(j->first,j->second);\r for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)\r MoveAfter(j->first,j->second);\r BuildISupport();\r return true;\r}\r\rvoid InspIRCd::DoOneIteration(bool process_module_sockets)\r{\r#ifndef WIN32\r static rusage ru;\r#else\r static time_t uptime;\r static struct tm * stime;\r static char window_title[100];\r#endif\r\r /* time() seems to be a pretty expensive syscall, so avoid calling it too much.\r * Once per loop iteration is pleanty.\r */\r OLDTIME = TIME;\r TIME = time(NULL);\r\r /* Run background module timers every few seconds\r * (the docs say modules shouldnt rely on accurate\r * timing using this event, so we dont have to\r * time this exactly).\r */\r if (TIME != OLDTIME)\r {\r if (TIME < OLDTIME)\r WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));\r if ((TIME % 3600) == 0)\r {\r this->RehashUsersAndChans();\r FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());\r }\r Timers->TickTimers(TIME);\r this->DoBackgroundUserStuff(TIME);\r\r if ((TIME % 5) == 0)\r {\r XLines->expire_lines();\r FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));\r Timers->TickMissedTimers(TIME);\r }\r#ifndef WIN32\r /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */\r if (!getrusage(RUSAGE_SELF, &ru))\r {\r gettimeofday(&this->stats->LastSampled, NULL);\r this->stats->LastCPU = ru.ru_utime;\r }\r#else\r CheckIPC(this);\r\r if(Config->nofork)\r {\r uptime = Time() - startup_time;\r stime = gmtime(&uptime);\r snprintf(window_title, 100, "InspIRCd - %u clients, %u accepted connections - Up %u days, %.2u:%.2u:%.2u",\r LocalUserCount(), stats->statsAccept, stime->tm_yday, stime->tm_hour, stime->tm_min, stime->tm_sec);\r SetConsoleTitle(window_title);\r }\r#endif\r }\r\r /* Call the socket engine to wait on the active\r * file descriptors. The socket engine has everything's\r * descriptors in its list... dns, modules, users,\r * servers... so its nice and easy, just one call.\r * This will cause any read or write events to be\r * dispatched to their handlers.\r */\r SE->DispatchEvents();\r\r /* if any users was quit, take them out */\r GlobalCulls.Apply();\r\r /* If any inspsockets closed, remove them */\r for (std::map<InspSocket*,InspSocket*>::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x)\r {\r SE->DelFd(x->second);\r x->second->Close();\r delete x->second;\r }\r SocketCull.clear();\r}\r\rint InspIRCd::Run()\r{\r while (true)\r {\r DoOneIteration(true);\r }\r /* This is never reached -- we hope! */\r return 0;\r}\r\r/**********************************************************************************/\r\r/**\r * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.\r */\r\rint main(int argc, char** argv)\r{\r SI = new InspIRCd(argc, argv);\r SI->Run();\r delete SI;\r return 0;\r}\r\r/* this returns true when all modules are satisfied that the user should be allowed onto the irc server\r * (until this returns true, a user will block in the waiting state, waiting to connect up to the\r * registration timeout maximum seconds)\r */\rbool InspIRCd::AllModulesReportReady(userrec* user)\r{\r if (!Config->global_implementation[I_OnCheckReady])\r return true;\r\r for (int i = 0; i <= this->GetModuleCount(); i++)\r {\r if (Config->implement_lists[i][I_OnCheckReady])\r {\r int res = modules[i]->OnCheckReady(user);\r if (!res)\r return false;\r }\r }\r return true;\r}\r\rint InspIRCd::GetModuleCount()\r{\r return this->ModCount;\r}\r\rtime_t InspIRCd::Time(bool delta)\r{\r if (delta)\r return TIME + time_delta;\r return TIME;\r}\r\rint InspIRCd::SetTimeDelta(int delta)\r{\r int old = time_delta;\r time_delta = delta;\r this->Log(DEBUG, "Time delta set to %d (was %d)", time_delta, old);\r return old;\r}\r\rvoid InspIRCd::AddLocalClone(userrec* user)\r{\r clonemap::iterator x = local_clones.find(user->GetIPString());\r if (x != local_clones.end())\r x->second++;\r else\r local_clones[user->GetIPString()] = 1;\r}\r\rvoid InspIRCd::AddGlobalClone(userrec* user)\r{\r clonemap::iterator y = global_clones.find(user->GetIPString());\r if (y != global_clones.end())\r y->second++;\r else\r global_clones[user->GetIPString()] = 1;\r}\r\rint InspIRCd::GetTimeDelta()\r{\r return time_delta;\r}\r\rbool FileLogger::Readable()\r{\r return false;\r}\r\rvoid FileLogger::HandleEvent(EventType et, int errornum)\r{\r this->WriteLogLine("");\r if (log)\r ServerInstance->SE->DelFd(this);\r}\r\rvoid FileLogger::WriteLogLine(const std::string &line)\r{\r if (line.length())\r buffer.append(line);\r\r if (log)\r {\r int written = fprintf(log,"%s",buffer.c_str());\r#ifdef WINDOWS\r buffer.clear();\r#else\r if ((written >= 0) && (written < (int)buffer.length()))\r {\r buffer.erase(0, buffer.length());\r ServerInstance->SE->AddFd(this);\r }\r else if (written == -1)\r {\r if (errno == EAGAIN)\r ServerInstance->SE->AddFd(this);\r }\r else\r {\r /* Wrote the whole buffer, and no need for write callback */\r buffer.clear();\r }\r#endif\r if (writeops++ % 20)\r {\r fflush(log);\r }\r }\r}\r\rvoid FileLogger::Close()\r{\r if (log)\r {\r /* Burlex: Windows assumes nonblocking on FILE* pointers anyway, and also "file" fd's aren't the same\r * as socket fd's. */\r#ifndef WIN32\r int flags = fcntl(fileno(log), F_GETFL, 0);\r fcntl(fileno(log), F_SETFL, flags ^ O_NONBLOCK);\r#endif\r if (buffer.size())\r fprintf(log,"%s",buffer.c_str());\r\r#ifndef WINDOWS\r ServerInstance->SE->DelFd(this);\r#endif\r\r fflush(log);\r fclose(log);\r }\r\r buffer.clear();\r}\r\rFileLogger::FileLogger(InspIRCd* Instance, FILE* logfile) : ServerInstance(Instance), log(logfile), writeops(0)\r{\r if (log)\r {\r irc::sockets::NonBlocking(fileno(log));\r this->SetFd(fileno(log));\r buffer.clear();\r }\r}\r\rFileLogger::~FileLogger()\r{\r this->Close();\r}\r\r
\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2020 Matt Schatz <genius3000@g3k.solutions>
+ * Copyright (C) 2018 Chris Novakovic <chrisnovakovic@users.noreply.github.com>
+ * Copyright (C) 2013, 2017-2021 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2013 Adam <Adam@anope.org>
+ * Copyright (C) 2012-2014, 2016, 2018 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012-2013 ChrisTX <xpipe@hotmail.de>
+ * Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2012 Ariadne Conill <ariadne@dereferenced.org>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008-2009 Uli Schlachter <psychon@inspircd.org>
+ * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006-2007 Oliver Lupton <om@inspircd.org>
+ * Copyright (C) 2005-2010 Craig Edwards <brain@inspircd.org>
+ *
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "inspircd.h"
+#include <signal.h>
+
+#ifndef _WIN32
+ #include <unistd.h>
+ #include <sys/resource.h>
+ #include <getopt.h>
+ #include <pwd.h> // setuid
+ #include <grp.h> // setgid
+#else
+ /** Manages formatting lines written to stderr on Windows. */
+ WindowsStream StandardError(STD_ERROR_HANDLE);
+
+ /** Manages formatting lines written to stdout on Windows. */
+ WindowsStream StandardOutput(STD_OUTPUT_HANDLE);
+#endif
+
+#include <fstream>
+#include <iostream>
+#include "xline.h"
+#include "exitcodes.h"
+
+InspIRCd* ServerInstance = NULL;
+
+/** Separate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
+ * if it must.
+ *
+ * This is provided as a pointer so that modules can change it to their custom mapping tables,
+ * e.g. for national character support.
+ */
+unsigned const char *national_case_insensitive_map = rfc_case_insensitive_map;
+
+
+/* Moved from exitcodes.h -- due to duplicate symbols -- Burlex
+ * XXX this is a bit ugly. -- w00t
+ */
+const char* ExitCodes[] =
+{
+ "No error", // 0
+ "DIE command", // 1
+ "Config file error", // 2
+ "Logfile error", // 3
+ "POSIX fork failed", // 4
+ "Bad commandline parameters", // 5
+ "Can't write PID file", // 6
+ "SocketEngine could not initialize", // 7
+ "Refusing to start up as root", // 8
+ "Couldn't load module on startup", // 9
+ "Received SIGTERM" // 10
+};
+
+namespace
+{
+ void VoidSignalHandler(int);
+
+ // Warns a user running as root that they probably shouldn't.
+ void CheckRoot()
+ {
+#ifndef _WIN32
+ if (getegid() != 0 && geteuid() != 0)
+ return;
+
+ std::cout << con_red << "Warning!" << con_reset << " You have started as root. Running as root is generally not required" << std::endl
+ << "and may allow an attacker to gain access to your system if they find a way to" << std::endl
+ << "exploit your IRC server." << std::endl
+ << std::endl;
+ if (isatty(fileno(stdout)))
+ {
+ std::cout << "InspIRCd will start in 30 seconds. If you are sure that you need to run as root" << std::endl
+ << "then you can pass the " << con_bright << "--runasroot" << con_reset << " option to disable this wait." << std::endl;
+ sleep(30);
+ }
+ else
+ {
+ 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
+ << "option to disable this error." << std::endl;
+ ServerInstance->Exit(EXIT_STATUS_ROOT);
+ }
+#endif
+ }
+
+ // Collects performance statistics for the STATS command.
+ void CollectStats()
+ {
+#ifndef _WIN32
+ static rusage ru;
+ if (getrusage(RUSAGE_SELF, &ru) == -1)
+ return; // Should never happen.
+
+ ServerInstance->stats.LastSampled.tv_sec = ServerInstance->Time();
+ ServerInstance->stats.LastSampled.tv_nsec = ServerInstance->Time_ns();
+ ServerInstance->stats.LastCPU = ru.ru_utime;
+#else
+ if (!QueryPerformanceCounter(&ServerInstance->stats.LastSampled))
+ return; // Should never happen.
+
+ FILETIME CreationTime;
+ FILETIME ExitTime;
+ FILETIME KernelTime;
+ FILETIME UserTime;
+ GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime);
+
+ ServerInstance->stats.LastCPU.dwHighDateTime = KernelTime.dwHighDateTime + UserTime.dwHighDateTime;
+ ServerInstance->stats.LastCPU.dwLowDateTime = KernelTime.dwLowDateTime + UserTime.dwLowDateTime;
+#endif
+ }
+
+ // Checks whether the server clock has skipped too much and warn about it if it has.
+ void CheckTimeSkip(time_t oldtime, time_t newtime)
+ {
+ if (!ServerInstance->Config->TimeSkipWarn)
+ return;
+
+ time_t timediff = newtime - oldtime;
+
+ if (timediff > ServerInstance->Config->TimeSkipWarn)
+ ServerInstance->SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped forwards by %lu seconds!", timediff);
+
+ else if (timediff < -ServerInstance->Config->TimeSkipWarn)
+ ServerInstance->SNO->WriteToSnoMask('a', "\002Performance warning!\002 Server clock jumped backwards by %lu seconds!", labs(timediff));
+ }
+
+ // Drops to the unprivileged user/group specified in <security:runas{user,group}>.
+ void DropRoot()
+ {
+#ifndef _WIN32
+ ConfigTag* security = ServerInstance->Config->ConfValue("security");
+
+ const std::string SetGroup = security->getString("runasgroup");
+ if (!SetGroup.empty())
+ {
+ errno = 0;
+ if (setgroups(0, NULL) == -1)
+ {
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgroups() failed (wtf?): %s", strerror(errno));
+ exit(EXIT_STATUS_CONFIG);
+ }
+
+ struct group* g = getgrnam(SetGroup.c_str());
+ if (!g)
+ {
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getgrnam(%s) failed (wrong group?): %s", SetGroup.c_str(), strerror(errno));
+ exit(EXIT_STATUS_CONFIG);
+ }
+
+ if (setgid(g->gr_gid) == -1)
+ {
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setgid(%d) failed (wrong group?): %s", g->gr_gid, strerror(errno));
+ exit(EXIT_STATUS_CONFIG);
+ }
+ }
+
+ const std::string SetUser = security->getString("runasuser");
+ if (!SetUser.empty())
+ {
+ errno = 0;
+ struct passwd* u = getpwnam(SetUser.c_str());
+ if (!u)
+ {
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "getpwnam(%s) failed (wrong user?): %s", SetUser.c_str(), strerror(errno));
+ exit(EXIT_STATUS_CONFIG);
+ }
+
+ if (setuid(u->pw_uid) == -1)
+ {
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "setuid(%d) failed (wrong user?): %s", u->pw_uid, strerror(errno));
+ exit(EXIT_STATUS_CONFIG);
+ }
+ }
+#endif
+ }
+
+ // Expands a path relative to the current working directory.
+ std::string ExpandPath(const char* path)
+ {
+#ifdef _WIN32
+ TCHAR configPath[MAX_PATH + 1];
+ if (GetFullPathName(path, MAX_PATH, configPath, NULL) > 0)
+ return configPath;
+#else
+ char configPath[PATH_MAX + 1];
+ if (realpath(path, configPath))
+ return configPath;
+#endif
+ return path;
+ }
+
+ // Locates a config file on the file system.
+ bool FindConfigFile(std::string& path)
+ {
+ if (FileSystem::FileExists(path))
+ return true;
+
+#ifdef _WIN32
+ // Windows hides file extensions by default so try appending .txt to the path
+ // to help users who have that feature enabled and can't create .conf files.
+ const std::string txtpath = path + ".txt";
+ if (FileSystem::FileExists(txtpath))
+ {
+ path.assign(txtpath);
+ return true;
+ }
+#endif
+ return false;
+ }
+
+ // Attempts to fork into the background.
+ void ForkIntoBackground()
+ {
+#ifndef _WIN32
+ // We use VoidSignalHandler whilst forking to avoid breaking daemon scripts
+ // if the parent process exits with SIGTERM (15) instead of EXIT_STATUS_NOERROR (0).
+ signal(SIGTERM, VoidSignalHandler);
+
+ errno = 0;
+ int childpid = fork();
+ if (childpid < 0)
+ {
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "fork() failed: %s", strerror(errno));
+ std::cout << con_red << "Error:" << con_reset << " unable to fork into background: " << strerror(errno);
+ ServerInstance->Exit(EXIT_STATUS_FORK);
+ }
+ else if (childpid > 0)
+ {
+ // Wait until the child process kills the parent so that the shell prompt
+ // doesnt display over the output. Sending a kill with a signal of 0 just
+ // checks that the child pid is still running. If it is not then an error
+ // happened and the parent should exit.
+ while (kill(childpid, 0) != -1)
+ sleep(1);
+ exit(EXIT_STATUS_NOERROR);
+ }
+ else
+ {
+ setsid();
+ signal(SIGTERM, InspIRCd::SetSignal);
+ SocketEngine::RecoverFromFork();
+ }
+#endif
+ }
+
+ // Increase the size of a core dump file to improve debugging problems.
+ void IncreaseCoreDumpSize()
+ {
+#ifndef _WIN32
+ errno = 0;
+ rlimit rl;
+ if (getrlimit(RLIMIT_CORE, &rl) == -1)
+ {
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to increase core dump size: getrlimit(RLIMIT_CORE) failed: %s", strerror(errno));
+ return;
+ }
+
+ rl.rlim_cur = rl.rlim_max;
+ if (setrlimit(RLIMIT_CORE, &rl) == -1)
+ ServerInstance->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to increase core dump size: setrlimit(RLIMIT_CORE) failed: %s", strerror(errno));
+#endif
+ }
+
+ // Parses the command line options.
+ void ParseOptions()
+ {
+ int do_debug = 0, do_nofork = 0, do_nolog = 0;
+ int do_nopid = 0, do_runasroot = 0, do_version = 0;
+ struct option longopts[] =
+ {
+ { "config", required_argument, NULL, 'c' },
+ { "debug", no_argument, &do_debug, 1 },
+ { "nofork", no_argument, &do_nofork, 1 },
+ { "nolog", no_argument, &do_nolog, 1 },
+ { "nopid", no_argument, &do_nopid, 1 },
+ { "runasroot", no_argument, &do_runasroot, 1 },
+ { "version", no_argument, &do_version, 1 },
+ { 0, 0, 0, 0 }
+ };
+
+ char** argv = ServerInstance->Config->cmdline.argv;
+ int ret;
+ while ((ret = getopt_long(ServerInstance->Config->cmdline.argc, argv, ":c:", longopts, NULL)) != -1)
+ {
+ switch (ret)
+ {
+ case 0:
+ // A long option was specified.
+ break;
+
+ case 'c':
+ // The -c option was specified.
+ ServerInstance->ConfigFileName = ExpandPath(optarg);
+ break;
+
+ default:
+ // An unknown option was specified.
+ std::cout << con_red << "Error:" << con_reset << " unknown option '" << argv[optind] << "'." << std::endl
+ << con_bright << "Usage: " << con_reset << argv[0] << " [--config <file>] [--debug] [--nofork] [--nolog]" << std::endl
+ << std::string(strlen(argv[0]) + 8, ' ') << "[--nopid] [--runasroot] [--version]" << std::endl;
+ ServerInstance->Exit(EXIT_STATUS_ARGV);
+ break;
+ }
+ }
+
+ if (do_version)
+ {
+ std::cout << INSPIRCD_VERSION << std::endl;
+ ServerInstance->Exit(EXIT_STATUS_NOERROR);
+ }
+
+ // Store the relevant parsed arguments
+ ServerInstance->Config->cmdline.forcedebug = !!do_debug;
+ ServerInstance->Config->cmdline.nofork = !!do_nofork;
+ ServerInstance->Config->cmdline.runasroot = !!do_runasroot;
+ ServerInstance->Config->cmdline.writelog = !do_nolog;
+ ServerInstance->Config->cmdline.writepid = !do_nopid;
+ }
+ // Seeds the random number generator if applicable.
+ void SeedRng(timespec ts)
+ {
+#if defined _WIN32
+ srand(ts.tv_nsec ^ ts.tv_sec);
+#elif !defined HAS_ARC4RANDOM_BUF
+ srandom(ts.tv_nsec ^ ts.tv_sec);
+#endif
+ }
+
+ // Sets handlers for various process signals.
+ void SetSignals()
+ {
+#ifndef _WIN32
+ signal(SIGALRM, SIG_IGN);
+ signal(SIGCHLD, SIG_IGN);
+ signal(SIGHUP, InspIRCd::SetSignal);
+ signal(SIGPIPE, SIG_IGN);
+ signal(SIGUSR1, SIG_IGN);
+ signal(SIGUSR2, SIG_IGN);
+ signal(SIGXFSZ, SIG_IGN);
+#endif
+ signal(SIGTERM, InspIRCd::SetSignal);
+ }
+
+ void TryBindPorts()
+ {
+ FailedPortList pl;
+ ServerInstance->BindPorts(pl);
+
+ if (!pl.empty())
+ {
+ std::cout << con_red << "Warning!" << con_reset << " Some of your listener" << (pl.size() == 1 ? "s" : "") << " failed to bind:" << std::endl
+ << std::endl;
+
+ for (FailedPortList::const_iterator iter = pl.begin(); iter != pl.end(); ++iter)
+ {
+ const FailedPort& fp = *iter;
+ std::cout << " " << con_bright << fp.sa.str() << con_reset << ": " << strerror(fp.error) << '.' << std::endl
+ << " " << "Created from <bind> tag at " << fp.tag->getTagLocation() << std::endl
+ << std::endl;
+ }
+
+ std::cout << con_bright << "Hints:" << con_reset << std::endl
+ << "- For TCP/IP listeners try using a public IP address in <bind:address> instead" << std::endl
+ << " of * or leaving it blank." << std::endl
+ << "- For UNIX socket listeners try enabling <bind:rewrite> to replace old sockets." << std::endl;
+ }
+ }
+
+ // Required for returning the proper value of EXIT_SUCCESS for the parent process.
+ void VoidSignalHandler(int)
+ {
+ exit(EXIT_STATUS_NOERROR);
+ }
+}
+
+void InspIRCd::Cleanup()
+{
+ // Close all listening sockets
+ for (unsigned int i = 0; i < ports.size(); i++)
+ {
+ ports[i]->cull();
+ delete ports[i];
+ }
+ ports.clear();
+
+ // Tell modules that we're shutting down.
+ const std::string quitmsg = "Server shutting down";
+ FOREACH_MOD(OnShutdown, (quitmsg));
+
+ // Disconnect all local users
+ const UserManager::LocalList& list = Users.GetLocalUsers();
+ while (!list.empty())
+ ServerInstance->Users.QuitUser(list.front(), quitmsg);
+
+ GlobalCulls.Apply();
+ Modules->UnloadAll();
+
+ /* Delete objects dynamically allocated in constructor (destructor would be more appropriate, but we're likely exiting) */
+ /* Must be deleted before modes as it decrements modelines */
+ if (FakeClient)
+ {
+ delete FakeClient->server;
+ FakeClient->cull();
+ }
+ stdalgo::delete_zero(this->FakeClient);
+ stdalgo::delete_zero(this->XLines);
+ stdalgo::delete_zero(this->Config);
+ SocketEngine::Deinit();
+ Logs->CloseLogs();
+}
+
+void InspIRCd::WritePID(const std::string& filename, bool exitonfail)
+{
+#ifndef _WIN32
+ if (!ServerInstance->Config->cmdline.writepid)
+ {
+ this->Logs->Log("STARTUP", LOG_DEFAULT, "--nopid specified on command line; PID file not written.");
+ return;
+ }
+
+ std::string fname = ServerInstance->Config->Paths.PrependRuntime(filename.empty() ? "inspircd.pid" : filename);
+ std::ofstream outfile(fname.c_str());
+ if (outfile.is_open())
+ {
+ outfile << getpid();
+ outfile.close();
+ }
+ else
+ {
+ if (exitonfail)
+ std::cout << "Failed to write PID-file '" << fname << "', exiting." << std::endl;
+ this->Logs->Log("STARTUP", LOG_DEFAULT, "Failed to write PID-file '%s'%s", fname.c_str(), (exitonfail ? ", exiting." : ""));
+ if (exitonfail)
+ Exit(EXIT_STATUS_PID);
+ }
+#endif
+}
+
+InspIRCd::InspIRCd(int argc, char** argv)
+ : FakeClient(NULL)
+ , ConfigFileName(INSPIRCD_CONFIG_PATH "/inspircd.conf")
+ , ConfigThread(NULL)
+ , Config(NULL)
+ , XLines(NULL)
+ , PI(&DefaultProtocolInterface)
+ , GenRandom(&DefaultGenRandom)
+ , IsChannel(&DefaultIsChannel)
+ , IsNick(&DefaultIsNick)
+ , IsIdent(&DefaultIsIdent)
+{
+ ServerInstance = this;
+
+ UpdateTime();
+ this->startup_time = TIME.tv_sec;
+
+ IncreaseCoreDumpSize();
+ SeedRng(TIME);
+ SocketEngine::Init();
+
+ this->Config = new ServerConfig;
+ dynamic_reference_base::reset_all();
+ this->XLines = new XLineManager;
+
+ this->Config->cmdline.argv = argv;
+ this->Config->cmdline.argc = argc;
+ ParseOptions();
+
+ {
+ ServiceProvider* provs[] =
+ {
+ &rfcevents.numeric, &rfcevents.join, &rfcevents.part, &rfcevents.kick, &rfcevents.quit, &rfcevents.nick,
+ &rfcevents.mode, &rfcevents.topic, &rfcevents.privmsg, &rfcevents.invite, &rfcevents.ping, &rfcevents.pong,
+ &rfcevents.error
+ };
+ Modules.AddServices(provs, sizeof(provs)/sizeof(provs[0]));
+ }
+
+ std::cout << con_green << "InspIRCd - Internet Relay Chat Daemon" << con_reset << std::endl
+ << "See " << con_green << "/INFO" << con_reset << " for contributors & authors" << std::endl
+ << std::endl;
+
+ if (Config->cmdline.forcedebug)
+ {
+ FILE* newstdout = fdopen(dup(STDOUT_FILENO), "w");
+ FileWriter* fw = new FileWriter(newstdout, 1);
+ FileLogStream* fls = new FileLogStream(LOG_RAWIO, fw);
+ Logs->AddLogTypes("*", fls, true);
+ }
+
+ if (!FindConfigFile(ConfigFileName))
+ {
+ this->Logs->Log("STARTUP", LOG_DEFAULT, "Unable to open config file %s", ConfigFileName.c_str());
+ std::cout << "ERROR: Cannot open config file: " << ConfigFileName << std::endl << "Exiting..." << std::endl;
+ Exit(EXIT_STATUS_CONFIG);
+ }
+
+ SetSignals();
+ if (!Config->cmdline.runasroot)
+ CheckRoot();
+ if (!Config->cmdline.nofork)
+ ForkIntoBackground();
+
+ std::cout << "InspIRCd Process ID: " << con_green << getpid() << con_reset << std::endl;
+
+ /* During startup we read the configuration now, not in
+ * a separate thread
+ */
+ this->Config->Read();
+ this->Config->Apply(NULL, "");
+ Logs->OpenFileLogs();
+
+ // If we don't have a SID, generate one based on the server name and the server description
+ if (Config->sid.empty())
+ Config->sid = UIDGenerator::GenerateSID(Config->ServerName, Config->ServerDesc);
+
+ // Initialize the UID generator with our sid
+ this->UIDGen.init(Config->sid);
+
+ // Create the server user for this server
+ this->FakeClient = new FakeUser(Config->sid, Config->ServerName, Config->ServerDesc);
+
+ // This is needed as all new XLines are marked pending until ApplyLines() is called
+ this->XLines->ApplyLines();
+
+ std::cout << std::endl;
+
+ TryBindPorts();
+
+ this->Modules->LoadAll();
+
+ // Build ISupport as ModuleManager::LoadAll() does not do it
+ this->ISupport.Build();
+
+ std::cout << "InspIRCd is now running as '" << Config->ServerName << "'[" << Config->GetSID() << "] with " << SocketEngine::GetMaxFds() << " max open sockets" << std::endl;
+
+#ifndef _WIN32
+ if (!Config->cmdline.nofork)
+ {
+ if (kill(getppid(), SIGTERM) == -1)
+ {
+ std::cout << "Error killing parent process: " << strerror(errno) << std::endl;
+ Logs->Log("STARTUP", LOG_DEFAULT, "Error killing parent process: %s",strerror(errno));
+ }
+ }
+
+ /* Explicitly shut down stdio's stdin/stdout/stderr.
+ *
+ * The previous logic here was to only do this if stdio was connected to a controlling
+ * terminal. However, we must do this always to avoid information leaks and other
+ * problems related to stdio.
+ *
+ * The only exception is if we are in debug mode.
+ *
+ * -- nenolod
+ */
+ if ((!Config->cmdline.nofork) && (!Config->cmdline.forcedebug))
+ {
+ int fd = open("/dev/null", O_RDWR);
+
+ fclose(stdin);
+ fclose(stderr);
+ fclose(stdout);
+
+ if (dup2(fd, STDIN_FILENO) < 0)
+ Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdin.");
+ if (dup2(fd, STDOUT_FILENO) < 0)
+ Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stdout.");
+ if (dup2(fd, STDERR_FILENO) < 0)
+ Logs->Log("STARTUP", LOG_DEFAULT, "Failed to dup /dev/null to stderr.");
+ close(fd);
+ }
+ else
+ {
+ Logs->Log("STARTUP", LOG_DEFAULT, "Keeping pseudo-tty open as we are running in the foreground.");
+ }
+#else
+ /* Set win32 service as running, if we are running as a service */
+ SetServiceRunning();
+
+ // Handle forking
+ if(!Config->cmdline.nofork)
+ {
+ FreeConsole();
+ }
+
+ QueryPerformanceFrequency(&stats.QPFrequency);
+#endif
+
+ WritePID(Config->PID);
+ DropRoot();
+
+ Logs->Log("STARTUP", LOG_DEFAULT, "Startup complete as '%s'[%s], %lu max open sockets", Config->ServerName.c_str(),Config->GetSID().c_str(), SocketEngine::GetMaxFds());
+}
+
+void InspIRCd::UpdateTime()
+{
+#if defined HAS_CLOCK_GETTIME
+ clock_gettime(CLOCK_REALTIME, &TIME);
+#elif defined _WIN32
+ SYSTEMTIME st;
+ GetSystemTime(&st);
+
+ TIME.tv_sec = time(NULL);
+ TIME.tv_nsec = st.wMilliseconds;
+#else
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+
+ TIME.tv_sec = tv.tv_sec;
+ TIME.tv_nsec = tv.tv_usec * 1000;
+#endif
+}
+
+void InspIRCd::Run()
+{
+ UpdateTime();
+ time_t OLDTIME = TIME.tv_sec;
+
+ while (true)
+ {
+ /* Check if there is a config thread which has finished executing but has not yet been freed */
+ if (this->ConfigThread && this->ConfigThread->IsDone())
+ {
+ /* Rehash has completed */
+ this->Logs->Log("CONFIG", LOG_DEBUG, "Detected ConfigThread exiting, tidying up...");
+
+ this->ConfigThread->Finish();
+
+ ConfigThread->join();
+ delete ConfigThread;
+ ConfigThread = NULL;
+ }
+
+ UpdateTime();
+
+ /* Run background module timers every few seconds
+ * (the docs say modules should not rely on accurate
+ * timing using this event, so we dont have to
+ * time this exactly).
+ */
+ if (TIME.tv_sec != OLDTIME)
+ {
+ CollectStats();
+ CheckTimeSkip(OLDTIME, TIME.tv_sec);
+
+ OLDTIME = TIME.tv_sec;
+
+ if ((TIME.tv_sec % 3600) == 0)
+ FOREACH_MOD(OnGarbageCollect, ());
+
+ Timers.TickTimers(TIME.tv_sec);
+ Users->DoBackgroundUserStuff();
+
+ if ((TIME.tv_sec % 5) == 0)
+ {
+ FOREACH_MOD(OnBackgroundTimer, (TIME.tv_sec));
+ SNO->FlushSnotices();
+ }
+ }
+
+ /* Call the socket engine to wait on the active
+ * file descriptors. The socket engine has everything's
+ * descriptors in its list... dns, modules, users,
+ * servers... so its nice and easy, just one call.
+ * This will cause any read or write events to be
+ * dispatched to their handlers.
+ */
+ SocketEngine::DispatchTrialWrites();
+ SocketEngine::DispatchEvents();
+
+ /* if any users were quit, take them out */
+ GlobalCulls.Apply();
+ AtomicActions.Run();
+
+ if (s_signal)
+ {
+ this->SignalHandler(s_signal);
+ s_signal = 0;
+ }
+ }
+}
+
+sig_atomic_t InspIRCd::s_signal = 0;
+
+void InspIRCd::SetSignal(int signal)
+{
+ s_signal = signal;
+}
+
+/* On posix systems, the flow of the program starts right here, with
+ * ENTRYPOINT being a #define that defines main(). On Windows, ENTRYPOINT
+ * defines smain() and the real main() is in the service code under
+ * win32service.cpp. This allows the service control manager to control
+ * the process where we are running as a windows service.
+ */
+ENTRYPOINT
+{
+ new InspIRCd(argc, argv);
+ ServerInstance->Run();
+ delete ServerInstance;
+ return 0;
+}