/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #include "inspircd.h" #include "configreader.h" #include #ifndef WIN32 #include #include #include /* This is just to be completely certain that the change which fixed getrusage on RH7 doesn't break anything else -- Om */ #ifndef RUSAGE_SELF #define RUSAGE_SELF 0 #endif #endif #include #include #include "modules.h" #include "mode.h" #include "xline.h" #include "socketengine.h" #include "inspircd_se_config.h" #include "socket.h" #include "typedefs.h" #include "command_parse.h" #include "exitcodes.h" #ifndef WIN32 #include #include #else static DWORD owner_processid = 0; DWORD WindowsForkStart(InspIRCd * Instance) { /* Windows implementation of fork() :P */ // Build the command line arguments. string command_line; for(int i = 0; i < Instance->Config->argc; ++i) command_line += Instance->Config->argv[i]; char module[MAX_PATH]; if(!GetModuleFileName(NULL, module, MAX_PATH)) return false; STARTUPINFO startupinfo; PROCESS_INFORMATION procinfo; ZeroMemory(&startupinfo, sizeof(STARTUPINFO)); ZeroMemory(&procinfo, sizeof(PROCESS_INFORMATION)); // Fill in the startup info struct GetStartupInfo(&startupinfo); // Create the "startup" event HANDLE fork_event = CreateEvent(0, TRUE, FALSE, "InspStartup"); if(!fork_event) return false; // Launch our "forked" process. BOOL bSuccess = CreateProcess ( module, module, 0, // PROCESS_SECURITY_ATTRIBUTES 0, // THREAD_SECURITY_ATTRIBUTES TRUE, // We went to inherit handles. CREATE_SUSPENDED | // Suspend the primary thread of the new process CREATE_PRESERVE_CODE_AUTHZ_LEVEL, // Allow us full access to the process 0, // ENVIRONMENT 0, // CURRENT_DIRECTORY &startupinfo, // startup info &procinfo); // process info if(!bSuccess) return false; // Set the owner process id in the target process. SIZE_T written = 0; DWORD pid = GetCurrentProcessId(); if(!WriteProcessMemory(procinfo.hProcess, &owner_processid, &pid, sizeof(DWORD), &written) || written != sizeof(DWORD)) return false; // Resume the other thread (let it start) ResumeThread(procinfo.hThread); // 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. WaitForSingleObject(procinfo.hProcess, INFINITE); // If we hit this it means startup failed, default to 14 if this fails. DWORD ExitCode = 14; GetExitCodeProcess(procinfo.hProcess, &ExitCode); CloseHandle(procinfo.hThread); CloseHandle(procinfo.hProcess); return ExitCode; } void WindowsForkKillOwner(InspIRCd * Instance) { HANDLE hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, owner_processid); if(!hProcess || !owner_processid) Instance->Exit(14); // die die die if(!TerminateProcess(hProcess, 0)) Instance->Exit(14); CloseHandle(hProcess); } #endif using irc::sockets::NonBlocking; using irc::sockets::Blocking; using irc::sockets::insp_ntoa; using irc::sockets::insp_inaddr; using irc::sockets::insp_sockaddr; InspIRCd* SI = NULL; /* Burlex: Moved from exitcodes.h -- due to duplicate symbols */ const char* ExitCodes[] = { "No error", /* 0 */ "DIE command", /* 1 */ "execv() failed", /* 2 */ "Internal error", /* 3 */ "Config file error", /* 4 */ "Logfile error", /* 5 */ "Fork failed", /* 6 */ "Bad commandline parameters", /* 7 */ "No ports could be bound", /* 8 */ "Can't write PID file", /* 9 */ "SocketEngine could not initialize", /* 10 */ "Refusing to start up as root", /* 11 */ "Found a tag!", /* 12 */ "Couldn't load module on startup", /* 13 */ "Could not create forked process", /* 14 */ "Received SIGTERM", /* 15 */ }; void InspIRCd::AddServerName(const std::string &servername) { servernamelist::iterator itr = servernames.begin(); for(; itr != servernames.end(); ++itr) if(**itr == servername) return; string * ns = new string(servername); servernames.push_back(ns); } const char* InspIRCd::FindServerNamePtr(const std::string &servername) { servernamelist::iterator itr = servernames.begin(); for(; itr != servernames.end(); ++itr) if(**itr == servername) return (*itr)->c_str(); servernames.push_back(new string(servername)); itr = --servernames.end(); return (*itr)->c_str(); } bool InspIRCd::FindServerName(const std::string &servername) { servernamelist::iterator itr = servernames.begin(); for(; itr != servernames.end(); ++itr) if(**itr == servername) return true; return false; } void InspIRCd::Exit(int status) { #ifdef WINDOWS CloseIPC(); #endif if (SI) { SI->SendError("Exiting with status " + ConvToStr(status) + " (" + std::string(ExitCodes[status]) + ")"); SI->Cleanup(); } exit (status); } void InspIRCd::Cleanup() { std::vector mymodnames; int MyModCount = this->GetModuleCount(); for (unsigned int i = 0; i < Config->ports.size(); i++) { /* This calls the constructor and closes the listening socket */ delete Config->ports[i]; } Config->ports.clear(); /* Close all client sockets, or the new process inherits them */ for (std::vector::const_iterator i = this->local_users.begin(); i != this->local_users.end(); i++) { (*i)->SetWriteError("Server shutdown"); (*i)->CloseSocket(); } /* We do this more than once, so that any service providers get a * chance to be unhooked by the modules using them, but then get * a chance to be removed themsleves. */ for (int tries = 0; tries < 3; tries++) { MyModCount = this->GetModuleCount(); mymodnames.clear(); /* Unload all modules, so they get a chance to clean up their listeners */ for (int j = 0; j <= MyModCount; j++) mymodnames.push_back(Config->module_names[j]); for (int k = 0; k <= MyModCount; k++) this->UnloadModule(mymodnames[k].c_str()); } /* Close logging */ this->Logger->Close(); /* Cleanup Server Names */ for(servernamelist::iterator itr = servernames.begin(); itr != servernames.end(); ++itr) delete (*itr); #ifdef WINDOWS /* WSACleanup */ WSACleanup(); #endif } void InspIRCd::Restart(const std::string &reason) { /* SendError flushes each client's queue, * regardless of writeability state */ this->SendError(reason); this->Cleanup(); /* Figure out our filename (if theyve renamed it, we're boned) */ std::string me; #ifdef WINDOWS char module[MAX_PATH]; if (GetModuleFileName(NULL, module, MAX_PATH)) me = module; #else me = Config->MyDir + "/inspircd"; #endif if (execv(me.c_str(), Config->argv) == -1) { /* Will raise a SIGABRT if not trapped */ throw CoreException(std::string("Failed to execv()! error: ") + strerror(errno)); } } void InspIRCd::Start() { printf_c("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__); printf_c("(C) InspIRCd Development Team.\033[0m\n\n"); printf_c("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special, pippijn, peavey, Burlex\033[0m\n"); printf_c("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n"); } void InspIRCd::Rehash(int status) { SI->WriteOpers("*** Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(SI->ConfigFileName)); SI->CloseLog(); SI->OpenLog(SI->Config->argv, SI->Config->argc); SI->RehashUsersAndChans(); FOREACH_MOD_I(SI, I_OnGarbageCollect, OnGarbageCollect()); SI->Config->Read(false,NULL); SI->ResetMaxBans(); SI->Res->Rehash(); FOREACH_MOD_I(SI,I_OnRehash,OnRehash(NULL,"")); SI->BuildISupport(); } void InspIRCd::ResetMaxBans() { for (chan_hash::const_iterator i = chanlist->begin(); i != chanlist->end(); i++) i->second->ResetMaxBans(); } /** Because hash_map doesnt free its buckets when we delete items (this is a 'feature') * we must occasionally rehash the hash (yes really). * We do this by copying the entries from the old hash to a new hash, causing all * empty buckets to be weeded out of the hash. We dont do this on a timer, as its * very expensive, so instead we do it when the user types /REHASH and expects a * short delay anyway. */ void InspIRCd::RehashUsersAndChans() { user_hash* old_users = this->clientlist; chan_hash* old_chans = this->chanlist; this->clientlist = new user_hash(); this->chanlist = new chan_hash(); for (user_hash::const_iterator n = old_users->begin(); n != old_users->end(); n++) this->clientlist->insert(*n); delete old_users; for (chan_hash::const_iterator n = old_chans->begin(); n != old_chans->end(); n++) this->chanlist->insert(*n); delete old_chans; } void InspIRCd::CloseLog() { this->Logger->Close(); } void InspIRCd::SetSignals() { #ifndef WIN32 signal(SIGALRM, SIG_IGN); signal(SIGHUP, InspIRCd::Rehash); signal(SIGPIPE, SIG_IGN); signal(SIGCHLD, SIG_IGN); #endif signal(SIGTERM, InspIRCd::Exit); } void InspIRCd::QuickExit(int status) { exit(0); } bool InspIRCd::DaemonSeed() { #ifdef WINDOWS printf_c("InspIRCd Process ID: \033[1;32m%lu\033[0m\n", GetCurrentProcessId()); return true; #else signal(SIGTERM, InspIRCd::QuickExit); int childpid; if ((childpid = fork ()) < 0) return false; else if (childpid > 0) { /* We wait here for the child process to kill us, * so that the shell prompt doesnt come back over * the output. * Sending a kill with a signal of 0 just checks * if the child pid is still around. If theyre not, * they threw an error and we should give up. */ while (kill(childpid, 0) != -1) sleep(1); exit(0); } setsid (); umask (007); printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid()); signal(SIGTERM, InspIRCd::Exit); rlimit rl; if (getrlimit(RLIMIT_CORE, &rl) == -1) { this->Log(DEFAULT,"Failed to getrlimit()!"); return false; } else { rl.rlim_cur = rl.rlim_max; if (setrlimit(RLIMIT_CORE, &rl) == -1) this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size."); } return true; #endif } void InspIRCd::WritePID(const std::string &filename) { std::string fname = (filename.empty() ? "inspircd.pid" : filename); if (*(fname.begin()) != '/') { std::string::size_type pos; std::string confpath = this->ConfigFileName; if ((pos = confpath.rfind("/")) != std::string::npos) { /* Leaves us with just the path */ fname = confpath.substr(0, pos) + std::string("/") + fname; } } std::ofstream outfile(fname.c_str()); if (outfile.is_open()) { outfile << getpid(); outfile.close(); } else { printf("Failed to write PID-file '%s', exiting.\n",fname.c_str()); this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",fname.c_str()); Exit(EXIT_STATUS_PID); } } std::string InspIRCd::GetRevision() { return REVISION; } InspIRCd::InspIRCd(int argc, char** argv) : ModCount(-1), GlobalCulls(this) { int found_ports = 0; FailedPortList pl; int do_version = 0, do_nofork = 0, do_debug = 0, do_nolog = 0, do_root = 0; /* flag variables */ char c = 0; modules.resize(255); factory.resize(255); memset(&server, 0, sizeof(server)); memset(&client, 0, sizeof(client)); this->unregistered_count = 0; this->clientlist = new user_hash(); this->chanlist = new chan_hash(); this->Config = new ServerConfig(this); this->Config->argv = argv; this->Config->argc = argc; chdir(Config->GetFullProgDir().c_str()); this->Config->opertypes.clear(); this->Config->operclass.clear(); this->SNO = new SnomaskManager(this); this->TIME = this->OLDTIME = this->startup_time = time(NULL); this->time_delta = 0; this->next_call = this->TIME + 3; srand(this->TIME); *this->LogFileName = 0; strlcpy(this->ConfigFileName, CONFIG_FILE, MAXBUF); struct option longopts[] = { { "nofork", no_argument, &do_nofork, 1 }, { "logfile", required_argument, NULL, 'f' }, { "config", required_argument, NULL, 'c' }, { "debug", no_argument, &do_debug, 1 }, { "nolog", no_argument, &do_nolog, 1 }, { "runasroot", no_argument, &do_root, 1 }, { "version", no_argument, &do_version, 1 }, { 0, 0, 0, 0 } }; while ((c = getopt_long_only(argc, argv, ":f:", longopts, NULL)) != -1) { switch (c) { case 'f': /* Log filename was set */ strlcpy(LogFileName, optarg, MAXBUF); printf("LOG: Setting logfile to %s\n", LogFileName); break; case 'c': /* Config filename was set */ strlcpy(ConfigFileName, optarg, MAXBUF); printf("CONFIG: Setting config file to %s\n", ConfigFileName); break; case 0: /* getopt_long_only() set an int variable, just keep going */ break; default: /* Unknown parameter! DANGER, INTRUDER.... err.... yeah. */ printf("Usage: %s [--nofork] [--nolog] [--debug] [--logfile ] [--runasroot] [--version] [--config ]\n", argv[0]); Exit(EXIT_STATUS_ARGV); break; } } if (do_version) { printf("\n%s r%s\n", VERSION, REVISION); Exit(EXIT_STATUS_NOERROR); } #ifdef WIN32 // Handle forking if(!do_nofork && !owner_processid) { DWORD ExitCode = WindowsForkStart(this); if(ExitCode) Exit(ExitCode); } // Set up winsock WSADATA wsadata; WSAStartup(MAKEWORD(2,0), &wsadata); #endif if (!ServerConfig::FileExists(this->ConfigFileName)) { printf("ERROR: Cannot open config file: %s\nExiting...\n", this->ConfigFileName); this->Log(DEFAULT,"Unable to open config file %s", this->ConfigFileName); Exit(EXIT_STATUS_CONFIG); } this->Start(); /* Set the finished argument values */ Config->nofork = do_nofork; Config->forcedebug = do_debug; Config->writelog = !do_nolog; strlcpy(Config->MyExecutable,argv[0],MAXBUF); this->OpenLog(argv, argc); this->stats = new serverstats(); this->Timers = new TimerManager(this); this->Parser = new CommandParser(this); this->XLines = new XLineManager(this); Config->ClearStack(); Config->Read(true, NULL); if (!do_root) this->CheckRoot(); else { printf("* WARNING * WARNING * WARNING * WARNING * WARNING * \n\n"); printf("YOU ARE RUNNING INSPIRCD AS ROOT. THIS IS UNSUPPORTED\n"); printf("AND IF YOU ARE HACKED, CRACKED, SPINDLED OR MUTILATED\n"); printf("OR ANYTHING ELSE UNEXPECTED HAPPENS TO YOU OR YOUR\n"); printf("SERVER, THEN IT IS YOUR OWN FAULT. IF YOU DID NOT MEAN\n"); printf("TO START INSPIRCD AS ROOT, HIT CTRL+C NOW AND RESTART\n"); printf("THE PROGRAM AS A NORMAL USER. YOU HAVE BEEN WARNED!\n"); printf("\nInspIRCd starting in 20 seconds, ctrl+c to abort...\n"); sleep(20); } this->SetSignals(); if (!Config->nofork) { if (!this->DaemonSeed()) { printf("ERROR: could not go into daemon mode. Shutting down.\n"); Log(DEFAULT,"ERROR: could not go into daemon mode. Shutting down."); Exit(EXIT_STATUS_FORK); } } /* Because of limitations in kqueue on freebsd, we must fork BEFORE we * initialize the socket engine. */ SocketEngineFactory* SEF = new SocketEngineFactory(); SE = SEF->Create(this); delete SEF; this->Modes = new ModeParser(this); this->AddServerName(Config->ServerName); CheckDie(); int bounditems = BindPorts(true, found_ports, pl); for(int t = 0; t < 255; t++) Config->global_implementation[t] = 0; memset(&Config->implement_lists,0,sizeof(Config->implement_lists)); printf("\n"); this->Res = new DNS(this); this->LoadAllModules(); /* Just in case no modules were loaded - fix for bug #101 */ this->BuildISupport(); InitializeDisabledCommands(Config->DisabledCommands, this); if ((Config->ports.size() == 0) && (found_ports > 0)) { printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n"); Log(DEFAULT,"ERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?"); Exit(EXIT_STATUS_BIND); } if (Config->ports.size() != (unsigned int)found_ports) { printf("\nWARNING: Not all your client ports could be bound --\nstarting anyway with %d of %d client ports bound.\n\n", bounditems, found_ports); printf("The following port(s) failed to bind:\n"); int j = 1; for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++) { printf("%d.\tIP: %s\tPort: %lu\n", j, i->first.empty() ? "" : i->first.c_str(), (unsigned long)i->second); } } #ifndef WINDOWS if (!Config->nofork) { if (kill(getppid(), SIGTERM) == -1) { printf("Error killing parent process: %s\n",strerror(errno)); Log(DEFAULT,"Error killing parent process: %s",strerror(errno)); } } if (isatty(0) && isatty(1) && isatty(2)) { /* We didn't start from a TTY, we must have started from a background process - * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont * close stdin/stdout */ if (!do_nofork) { fclose(stdin); fclose(stderr); fclose(stdout); } else { Log(DEFAULT,"Keeping pseudo-tty open as we are running in the foreground."); } } #else InitIPC(); if(!Config->nofork) { WindowsForkKillOwner(this); FreeConsole(); } #endif printf("\nInspIRCd is now running!\n"); Log(DEFAULT,"Startup complete."); this->WritePID(Config->PID); } std::string InspIRCd::GetVersionString() { char versiondata[MAXBUF]; char dnsengine[] = "singlethread-object"; if (*Config->CustomVersion) { snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion); } else { snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%s,%s,%s]",VERSION,Config->ServerName,SYSTEM,REVISION,SE->GetName().c_str(),dnsengine); } return versiondata; } char* InspIRCd::ModuleError() { return MODERR; } void InspIRCd::EraseFactory(int j) { int v = 0; for (std::vector::iterator t = factory.begin(); t != factory.end(); t++) { if (v == j) { delete *t; factory.erase(t); factory.push_back(NULL); return; } v++; } } void InspIRCd::EraseModule(int j) { int v1 = 0; for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++) { if (v1 == j) { DELETE(*m); modules.erase(m); modules.push_back(NULL); break; } v1++; } int v2 = 0; for (std::vector::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++) { if (v2 == j) { Config->module_names.erase(v); break; } v2++; } } void InspIRCd::MoveTo(std::string modulename,int slot) { unsigned int v2 = 256; for (unsigned int v = 0; v < Config->module_names.size(); v++) { if (Config->module_names[v] == modulename) { // found an instance, swap it with the item at the end v2 = v; break; } } if ((v2 != (unsigned int)slot) && (v2 < 256)) { // Swap the module names over Config->module_names[v2] = Config->module_names[slot]; Config->module_names[slot] = modulename; // now swap the module factories ircd_module* temp = factory[v2]; factory[v2] = factory[slot]; factory[slot] = temp; // now swap the module objects Module* temp_module = modules[v2]; modules[v2] = modules[slot]; modules[slot] = temp_module; // now swap the implement lists (we dont // need to swap the global or recount it) for (int n = 0; n < 255; n++) { char x = Config->implement_lists[v2][n]; Config->implement_lists[v2][n] = Config->implement_lists[slot][n]; Config->implement_lists[slot][n] = x; } } } void InspIRCd::MoveAfter(std::string modulename, std::string after) { for (unsigned int v = 0; v < Config->module_names.size(); v++) { if (Config->module_names[v] == after) { MoveTo(modulename, v); return; } } } void InspIRCd::MoveBefore(std::string modulename, std::string before) { for (unsigned int v = 0; v < Config->module_names.size(); v++) { if (Config->module_names[v] == before) { if (v > 0) { MoveTo(modulename, v-1); } else { MoveTo(modulename, v); } return; } } } void InspIRCd::MoveToFirst(std::string modulename) { MoveTo(modulename,0); } void InspIRCd::MoveToLast(std::string modulename) { MoveTo(modulename,this->GetModuleCount()); } void InspIRCd::BuildISupport() { // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it... std::stringstream v; v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES-1 << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " MAP MAXCHANNELS=" << Config->MaxChans << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1; v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN="; v << MAXAWAY << " CHANMODES=" << this->Modes->ChanModes() << " FNC NETWORK=" << Config->Network << " MAXPARA=32 ELIST=MU"; Config->data005 = v.str(); FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005)); Config->Update005(); } bool InspIRCd::UnloadModule(const char* filename) { std::string filename_str = filename; for (unsigned int j = 0; j != Config->module_names.size(); j++) { if (Config->module_names[j] == filename_str) { if (modules[j]->GetVersion().Flags & VF_STATIC) { this->Log(DEFAULT,"Failed to unload STATIC module %s",filename); snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)"); return false; } std::pair intercount = GetInterfaceInstanceCount(modules[j]); if (intercount.first > 0) { this->Log(DEFAULT,"Failed to unload module %s, being used by %d other(s) via interface '%s'",filename, intercount.first, intercount.second.c_str()); snprintf(MODERR,MAXBUF,"Module not unloadable (Still in use by %d other module%s which %s using its interface '%s') -- unload dependent modules first!", intercount.first, intercount.first > 1 ? "s" : "", intercount.first > 1 ? "are" : "is", intercount.second.c_str()); return false; } /* Give the module a chance to tidy out all its metadata */ for (chan_hash::iterator c = this->chanlist->begin(); c != this->chanlist->end(); c++) { modules[j]->OnCleanup(TYPE_CHANNEL,c->second); } for (user_hash::iterator u = this->clientlist->begin(); u != this->clientlist->end(); u++) { modules[j]->OnCleanup(TYPE_USER,u->second); } /* Tidy up any dangling resolvers */ this->Res->CleanResolvers(modules[j]); FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j])); for(int t = 0; t < 255; t++) { Config->global_implementation[t] -= Config->implement_lists[j][t]; } /* We have to renumber implement_lists after unload because the module numbers change! */ for(int j2 = j; j2 < 254; j2++) { for(int t = 0; t < 255; t++) { Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t]; } } // found the module Parser->RemoveCommands(filename); this->EraseModule(j); this->EraseFactory(j); this->Log(DEFAULT,"Module %s unloaded",filename); this->ModCount--; BuildISupport(); return true; } } this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename); snprintf(MODERR,MAXBUF,"Module not loaded"); return false; } bool InspIRCd::LoadModule(const char* filename) { /* Do we have a glob pattern in the filename? * The user wants to load multiple modules which * match the pattern. */ if (strchr(filename,'*') || (strchr(filename,'?'))) { int n_match = 0; DIR* library = opendir(Config->ModPath); if (library) { /* Try and locate and load all modules matching the pattern */ dirent* entry = NULL; while ((entry = readdir(library))) { if (this->MatchText(entry->d_name, filename)) { if (!this->LoadModule(entry->d_name)) n_match++; } } closedir(library); } /* Loadmodule will now return false if any one of the modules failed * to load (but wont abort when it encounters a bad one) and when 1 or * more modules were actually loaded. */ return (n_match > 0); } char modfile[MAXBUF]; snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename); std::string filename_str = filename; if (!ServerConfig::DirValid(modfile)) { this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile); snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile); return false; } if (ServerConfig::FileExists(modfile)) { for (unsigned int j = 0; j < Config->module_names.size(); j++) { if (Config->module_names[j] == filename_str) { this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile); snprintf(MODERR,MAXBUF,"Module already loaded"); return false; } } try { ircd_module* a = new ircd_module(this, modfile); factory[this->ModCount+1] = a; if (factory[this->ModCount+1]->LastError()) { this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError()); snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError()); return false; } if ((long)factory[this->ModCount+1]->factory != -1) { Module* m = factory[this->ModCount+1]->factory->CreateModule(this); Version v = m->GetVersion(); if (v.API != API_VERSION) { delete m; delete a; this->Log(DEFAULT,"Unable to load %s: Incorrect module API version: %d (our version: %d)",modfile,v.API,API_VERSION); snprintf(MODERR,MAXBUF,"Loader/Linker error: Incorrect module API version: %d (our version: %d)",v.API,API_VERSION); return false; } else { 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]")); } modules[this->ModCount+1] = m; /* save the module and the module's classfactory, if * this isnt done, random crashes can occur :/ */ Config->module_names.push_back(filename); char* x = &Config->implement_lists[this->ModCount+1][0]; for(int t = 0; t < 255; t++) x[t] = 0; modules[this->ModCount+1]->Implements(x); for(int t = 0; t < 255; t++) Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t]; } else { this->Log(DEFAULT,"Unable to load %s",modfile); snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint."); return false; } } catch (CoreException& modexcept) { this->Log(DEFAULT,"Unable to load %s: %s",modfile,modexcept.GetReason()); snprintf(MODERR,MAXBUF,"Factory function of %s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason()); return false; } } else { this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile); snprintf(MODERR,MAXBUF,"Module file could not be found"); return false; } this->ModCount++; FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str)); // now work out which modules, if any, want to move to the back of the queue, // and if they do, move them there. std::vector put_to_back; std::vector put_to_front; std::map put_before; std::map put_after; for (unsigned int j = 0; j < Config->module_names.size(); j++) { if (modules[j]->Prioritize() == PRIORITY_LAST) put_to_back.push_back(Config->module_names[j]); else if (modules[j]->Prioritize() == PRIORITY_FIRST) put_to_front.push_back(Config->module_names[j]); else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE) put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8]; else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER) put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8]; } for (unsigned int j = 0; j < put_to_back.size(); j++) MoveToLast(put_to_back[j]); for (unsigned int j = 0; j < put_to_front.size(); j++) MoveToFirst(put_to_front[j]); for (std::map::iterator j = put_before.begin(); j != put_before.end(); j++) MoveBefore(j->first,j->second); for (std::map::iterator j = put_after.begin(); j != put_after.end(); j++) MoveAfter(j->first,j->second); BuildISupport(); return true; } void InspIRCd::DoOneIteration(bool process_module_sockets) { #ifndef WIN32 static rusage ru; #else static time_t uptime; static struct tm * stime; static char window_title[100]; #endif /* time() seems to be a pretty expensive syscall, so avoid calling it too much. * Once per loop iteration is pleanty. */ OLDTIME = TIME; TIME = time(NULL); /* Run background module timers every few seconds * (the docs say modules shouldnt rely on accurate * timing using this event, so we dont have to * time this exactly). */ if (TIME != OLDTIME) { if (TIME < OLDTIME) WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME)); if ((TIME % 3600) == 0) { this->RehashUsersAndChans(); FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect()); } Timers->TickTimers(TIME); this->DoBackgroundUserStuff(TIME); if ((TIME % 5) == 0) { XLines->expire_lines(); FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME)); Timers->TickMissedTimers(TIME); } #ifndef WIN32 /* Same change as in cmd_stats.cpp, use RUSAGE_SELF rather than '0' -- Om */ if (!getrusage(RUSAGE_SELF, &ru)) { gettimeofday(&this->stats->LastSampled, NULL); this->stats->LastCPU = ru.ru_utime; } #else CheckIPC(this); if(Config->nofork) { uptime = Time() - startup_time; stime = gmtime(&uptime); snprintf(window_title, 100, "InspIRCd - %u clients, %u accepted connections - Up %u days, %.2u:%.2u:%.2u", LocalUserCount(), stats->statsAccept, stime->tm_yday, stime->tm_hour, stime->tm_min, stime->tm_sec); SetConsoleTitle(window_title); } #endif } /* 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. */ SE->DispatchEvents(); /* if any users was quit, take them out */ GlobalCulls.Apply(); /* If any inspsockets closed, remove them */ for (std::map::iterator x = SocketCull.begin(); x != SocketCull.end(); ++x) { SE->DelFd(x->second); x->second->Close(); delete x->second; } SocketCull.clear(); } int InspIRCd::Run() { while (true) { DoOneIteration(true); } /* This is never reached -- we hope! */ return 0; } /**********************************************************************************/ /** * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*. */ int main(int argc, char** argv) { SI = new InspIRCd(argc, argv); SI->Run(); delete SI; return 0; } /* this returns true when all modules are satisfied that the user should be allowed onto the irc server * (until this returns true, a user will block in the waiting state, waiting to connect up to the * registration timeout maximum seconds) */ bool InspIRCd::AllModulesReportReady(userrec* user) { if (!Config->global_implementation[I_OnCheckReady]) return true; for (int i = 0; i <= this->GetModuleCount(); i++) { if (Config->implement_lists[i][I_OnCheckReady]) { int res = modules[i]->OnCheckReady(user); if (!res) return false; } } return true; } int InspIRCd::GetModuleCount() { return this->ModCount; } time_t InspIRCd::Time(bool delta) { if (delta) return TIME + time_delta; return TIME; } int InspIRCd::SetTimeDelta(int delta) { int old = time_delta; time_delta = delta; this->Log(DEBUG, "Time delta set to %d (was %d)", time_delta, old); return old; } void InspIRCd::AddLocalClone(userrec* user) { clonemap::iterator x = local_clones.find(user->GetIPString()); if (x != local_clones.end()) x->second++; else local_clones[user->GetIPString()] = 1; } void InspIRCd::AddGlobalClone(userrec* user) { clonemap::iterator y = global_clones.find(user->GetIPString()); if (y != global_clones.end()) y->second++; else global_clones[user->GetIPString()] = 1; } int InspIRCd::GetTimeDelta() { return time_delta; } bool FileLogger::Readable() { return false; } void FileLogger::HandleEvent(EventType et, int errornum) { this->WriteLogLine(""); if (log) ServerInstance->SE->DelFd(this); } void FileLogger::WriteLogLine(const std::string &line) { if (line.length()) buffer.append(line); if (log) { int written = fprintf(log,"%s",buffer.c_str()); #ifdef WINDOWS buffer.clear(); #else if ((written >= 0) && (written < (int)buffer.length())) { buffer.erase(0, buffer.length()); ServerInstance->SE->AddFd(this); } else if (written == -1) { if (errno == EAGAIN) ServerInstance->SE->AddFd(this); } else { /* Wrote the whole buffer, and no need for write callback */ buffer = ""; } #endif if (writeops++ % 20) { fflush(log); } } } void FileLogger::Close() { if (log) { /* Burlex: Windows assumes nonblocking on FILE* pointers anyway, and also "file" fd's aren't the same * as socket fd's. */ #ifndef WIN32 int flags = fcntl(fileno(log), F_GETFL, 0); fcntl(fileno(log), F_SETFL, flags ^ O_NONBLOCK); #endif if (buffer.size()) fprintf(log,"%s",buffer.c_str()); #ifndef WINDOWS ServerInstance->SE->DelFd(this); #endif fflush(log); fclose(log); } buffer = ""; } FileLogger::FileLogger(InspIRCd* Instance, FILE* logfile) : ServerInstance(Instance), log(logfile), writeops(0) { if (log) { irc::sockets::NonBlocking(fileno(log)); this->SetFd(fileno(log)); buffer = ""; } } FileLogger::~FileLogger() { this->Close(); }