src/inspircd.cpp

   1 /* ---------------------------------------------------------------------
   2  *
   3  *            +------------------------------------+
   4  *            | Inspire Internet Relay Chat Daemon |
   5  *            +------------------------------------+
   6  *
   7  *       InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   8  *                           E-mail:
   9  *                    <brain@chatspike.net>
  10  *                    <Craig@chatspike.net>
  11  *
  12  *  Written by Craig Edwards, Craig McLure, and others.
  13  *  This program is free but copyrighted software; you can redistribute
  14  *  it and/or modify it under the terms of the GNU General Public
  15  *  License as published by the Free Software Foundation, version 2
  16  *  (two) ONLY.
  17  *
  18  *  This program is distributed in the hope that it will be useful,
  19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *  GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License
  24  *  along with this program; if not, write to the Free Software
  25  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  26  *
  27  * ---------------------------------------------------------------------
  28  */
  29
  30 #include "inspircd.h"
  31 #include "configreader.h"
  32 #include <signal.h>
  33 #include <time.h>
  34 #include <string>
  35 #include <exception>
  36 #include <stdexcept>
  37 #include <new>
  38 #include <map>
  39 #include <sstream>
  40 #include <fstream>
  41 #include <vector>
  42 #include <deque>
  43 #include "modules.h"
  44 #include "mode.h"
  45 #include "xline.h"
  46 #include "socketengine.h"
  47 #include "inspircd_se_config.h"
  48 #include "socket.h"
  49 #include "typedefs.h"
  50 #include "command_parse.h"
  51
  52 using irc::sockets::NonBlocking;
  53 using irc::sockets::insp_ntoa;
  54 using irc::sockets::insp_inaddr;
  55 using irc::sockets::insp_sockaddr;
  56
  57 char lowermap[255];
  58
  59 InspIRCd* SI = NULL;
  60
  61 void InspIRCd::AddServerName(const std::string &servername)
  62 {
  63         this->Log(DEBUG,"Adding server name: %s",servername.c_str());
  64
  65         if(find(servernames.begin(), servernames.end(), servername) == servernames.end())
  66                 servernames.push_back(servername); /* Wasn't already there. */
  67 }
  68
  69 const char* InspIRCd::FindServerNamePtr(const std::string &servername)
  70 {
  71         servernamelist::iterator iter = find(servernames.begin(), servernames.end(), servername);
  72
  73         if(iter == servernames.end())
  74         {
  75                 AddServerName(servername);
  76                 iter = --servernames.end();
  77         }
  78
  79         return iter->c_str();
  80 }
  81
  82 bool InspIRCd::FindServerName(const std::string &servername)
  83 {
  84         return (find(servernames.begin(), servernames.end(), servername) != servernames.end());
  85 }
  86
  87 void InspIRCd::Exit(int status)
  88 {
  89         exit (status);
  90 }
  91
  92 void InspIRCd::Start()
  93 {
  94         printf("\033[1;32mInspire Internet Relay Chat Server, compiled %s at %s\n",__DATE__,__TIME__);
  95         printf("(C) ChatSpike Development team.\033[0m\n\n");
  96         printf("Developers:\t\t\033[1;32mBrain, FrostyCoolSlug, w00t, Om, Special\033[0m\n");
  97         printf("Others:\t\t\t\033[1;32mSee /INFO Output\033[0m\n");
  98         printf("Name concept:\t\t\033[1;32mLord_Zathras\033[0m\n\n");
  99 }
 100
 101 void InspIRCd::Rehash(int status)
 102 {
 103         SI->WriteOpers("Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(CONFIG_FILE));
 104         fclose(SI->Config->log_file);
 105         SI->OpenLog(NULL,0);
 106         SI->Config->Read(false,NULL);
 107         FOREACH_MOD_I(SI,I_OnRehash,OnRehash(""));
 108 }
 109
 110 void InspIRCd::SetSignals(bool SEGVHandler)
 111 {
 112         signal (SIGALRM, SIG_IGN);
 113         signal (SIGHUP, InspIRCd::Rehash);
 114         signal (SIGPIPE, SIG_IGN);
 115         signal (SIGTERM, InspIRCd::Exit);
 116 }
 117
 118 bool InspIRCd::DaemonSeed()
 119 {
 120         int childpid;
 121         if ((childpid = fork ()) < 0)
 122                 return (ERROR);
 123         else if (childpid > 0)
 124         {
 125                 /* We wait a few seconds here, so that the shell prompt doesnt come back over the output */
 126                 sleep(6);
 127                 exit (0);
 128         }
 129         setsid ();
 130         umask (007);
 131         printf("InspIRCd Process ID: \033[1;32m%lu\033[0m\n",(unsigned long)getpid());
 132
 133         rlimit rl;
 134         if (getrlimit(RLIMIT_CORE, &rl) == -1)
 135         {
 136                 this->Log(DEFAULT,"Failed to getrlimit()!");
 137                 return false;
 138         }
 139         else
 140         {
 141                 rl.rlim_cur = rl.rlim_max;
 142                 if (setrlimit(RLIMIT_CORE, &rl) == -1)
 143                         this->Log(DEFAULT,"setrlimit() failed, cannot increase coredump size.");
 144         }
 145
 146         return true;
 147 }
 148
 149 void InspIRCd::WritePID(const std::string &filename)
 150 {
 151         std::ofstream outfile(filename.c_str());
 152         if (outfile.is_open())
 153         {
 154                 outfile << getpid();
 155                 outfile.close();
 156         }
 157         else
 158         {
 159                 printf("Failed to write PID-file '%s', exiting.\n",filename.c_str());
 160                 this->Log(DEFAULT,"Failed to write PID-file '%s', exiting.",filename.c_str());
 161                 Exit(0);
 162         }
 163 }
 164
 165 std::string InspIRCd::GetRevision()
 166 {
 167         return REVISION;
 168 }
 169
 170 InspIRCd::InspIRCd(int argc, char** argv)
 171         : ModCount(-1), duration_m(60), duration_h(60*60), duration_d(60*60*24), duration_w(60*60*24*7), duration_y(60*60*24*365)
 172 {
 173         bool SEGVHandler = false;
 174
 175         modules.resize(255);
 176         factory.resize(255);
 177
 178         this->Config = new ServerConfig(this);
 179         this->Start();
 180         this->module_sockets.clear();
 181         this->TIME = this->OLDTIME = this->startup_time = time(NULL);
 182         srand(this->TIME);
 183         this->Log(DEBUG,"*** InspIRCd starting up!");
 184         if (!ServerConfig::FileExists(CONFIG_FILE))
 185         {
 186                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
 187                 this->Log(DEFAULT,"main: no config");
 188                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
 189                 Exit(ERROR);
 190         }
 191         *this->LogFileName = 0;
 192         if (argc > 1) {
 193                 for (int i = 1; i < argc; i++)
 194                 {
 195                         if (!strcmp(argv[i],"-nofork"))
 196                         {
 197                                 Config->nofork = true;
 198                         }
 199                         else if(!strcmp(argv[i],"-debug"))
 200                         {
 201                                 Config->forcedebug = true;
 202                         }
 203                         else if(!strcmp(argv[i],"-nolog"))
 204                         {
 205                                 Config->writelog = false;
 206                         }
 207                         else if (!strcmp(argv[i],"-wait"))
 208                         {
 209                                 sleep(6);
 210                         }
 211                         else if (!strcmp(argv[i],"-nolimit"))
 212                         {
 213                                 printf("WARNING: The `-nolimit' option is deprecated, and now on by default. This behaviour may change in the future.\n");
 214                         }
 215                         else if (!strcmp(argv[i],"-notraceback"))
 216                         {
 217                                 SEGVHandler = false;
 218                         }
 219                         else if (!strcmp(argv[i],"-logfile"))
 220                         {
 221                                 if (argc > i+1)
 222                                 {
 223                                         strlcpy(LogFileName,argv[i+1],MAXBUF);
 224                                         printf("LOG: Setting logfile to %s\n",LogFileName);
 225                                 }
 226                                 else
 227                                 {
 228                                         printf("ERROR: The -logfile parameter must be followed by a log file name and path.\n");
 229                                         Exit(ERROR);
 230                                 }
 231                                 i++;
 232                         }
 233                         else
 234                         {
 235                                 printf("Usage: %s [-nofork] [-nolog] [-debug] [-wait] [-nolimit] [-notraceback] [-logfile <filename>]\n",argv[0]);
 236                                 Exit(ERROR);
 237                         }
 238                 }
 239         }
 240
 241         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 242
 243         this->MakeLowerMap();
 244
 245         OpenLog(argv, argc);
 246         this->stats = new serverstats();
 247         this->Parser = new CommandParser(this);
 248         this->Timers = new TimerManager();
 249         this->XLines = new XLineManager(this);
 250         Config->ClearStack();
 251         Config->Read(true, NULL);
 252         this->CheckRoot();
 253         this->Modes = new ModeParser(this);
 254         this->AddServerName(Config->ServerName);
 255         CheckDie();
 256         InitializeDisabledCommands(Config->DisabledCommands, this);
 257         stats->BoundPortCount = BindPorts(true);
 258
 259         for(int t = 0; t < 255; t++)
 260                 Config->global_implementation[t] = 0;
 261
 262         memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
 263
 264         printf("\n");
 265         this->SetSignals(SEGVHandler);
 266         if (!Config->nofork)
 267         {
 268                 if (!this->DaemonSeed())
 269                 {
 270                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 271                         Exit(ERROR);
 272                 }
 273         }
 274
 275         /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
 276          * initialize the socket engine.
 277          */
 278         SocketEngineFactory* SEF = new SocketEngineFactory();
 279         SE = SEF->Create(this);
 280         delete SEF;
 281
 282         this->Res = new DNS(this);
 283
 284         this->Log(DEBUG,"RES: %08x",this->Res);
 285
 286         this->LoadAllModules();
 287
 288         /* Just in case no modules were loaded - fix for bug #101 */
 289         this->BuildISupport();
 290
 291         if (!stats->BoundPortCount)
 292         {
 293                 printf("\nERROR: I couldn't bind any ports! Are you sure you didn't start InspIRCd twice?\n");
 294                 Exit(ERROR);
 295         }
 296
 297         /* Add the listening sockets used for client inbound connections
 298          * to the socket engine
 299          */
 300         this->Log(DEBUG,"%d listeners",stats->BoundPortCount);
 301         for (unsigned long count = 0; count < stats->BoundPortCount; count++)
 302         {
 303                 this->Log(DEBUG,"Add listener: %d",Config->openSockfd[count]);
 304                 if (!SE->AddFd(Config->openSockfd[count]))
 305                 {
 306                         printf("\nEH? Could not add listener to socketengine. You screwed up, aborting.\n");
 307                         Exit(ERROR);
 308                 }
 309         }
 310
 311         if (!Config->nofork)
 312         {
 313                 fclose(stdout);
 314                 fclose(stderr);
 315                 fclose(stdin);
 316         }
 317
 318         printf("\nInspIRCd is now running!\n");
 319
 320         this->WritePID(Config->PID);
 321 }
 322
 323 std::string InspIRCd::GetVersionString()
 324 {
 325         char versiondata[MAXBUF];
 326         char dnsengine[] = "singlethread-object";
 327         if (*Config->CustomVersion)
 328         {
 329                 snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
 330         }
 331         else
 332         {
 333                 snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%lu,%s,%s]",VERSION,Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
 334         }
 335         return versiondata;
 336 }
 337
 338 char* InspIRCd::ModuleError()
 339 {
 340         return MODERR;
 341 }
 342
 343 void InspIRCd::EraseFactory(int j)
 344 {
 345         int v = 0;
 346         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
 347         {
 348                 if (v == j)
 349                 {
 350                         factory.erase(t);
 351                         factory.push_back(NULL);
 352                         return;
 353                 }
 354                 v++;
 355         }
 356 }
 357
 358 void InspIRCd::EraseModule(int j)
 359 {
 360         int v1 = 0;
 361         for (ModuleList::iterator m = modules.begin(); m!= modules.end(); m++)
 362         {
 363                 if (v1 == j)
 364                 {
 365                         DELETE(*m);
 366                         modules.erase(m);
 367                         modules.push_back(NULL);
 368                         break;
 369                 }
 370                 v1++;
 371         }
 372         int v2 = 0;
 373         for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
 374         {
 375                 if (v2 == j)
 376                 {
 377                        Config->module_names.erase(v);
 378                        break;
 379                 }
 380                 v2++;
 381         }
 382
 383 }
 384
 385 void InspIRCd::MoveTo(std::string modulename,int slot)
 386 {
 387         unsigned int v2 = 256;
 388         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 389         {
 390                 if (Config->module_names[v] == modulename)
 391                 {
 392                         // found an instance, swap it with the item at the end
 393                         v2 = v;
 394                         break;
 395                 }
 396         }
 397         if ((v2 != (unsigned int)slot) && (v2 < 256))
 398         {
 399                 // Swap the module names over
 400                 Config->module_names[v2] = Config->module_names[slot];
 401                 Config->module_names[slot] = modulename;
 402                 // now swap the module factories
 403                 ircd_module* temp = factory[v2];
 404                 factory[v2] = factory[slot];
 405                 factory[slot] = temp;
 406                 // now swap the module objects
 407                 Module* temp_module = modules[v2];
 408                 modules[v2] = modules[slot];
 409                 modules[slot] = temp_module;
 410                 // now swap the implement lists (we dont
 411                 // need to swap the global or recount it)
 412                 for (int n = 0; n < 255; n++)
 413                 {
 414                         char x = Config->implement_lists[v2][n];
 415                         Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
 416                         Config->implement_lists[slot][n] = x;
 417                 }
 418         }
 419         else
 420         {
 421                 this->Log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
 422         }
 423 }
 424
 425 void InspIRCd::MoveAfter(std::string modulename, std::string after)
 426 {
 427         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 428         {
 429                 if (Config->module_names[v] == after)
 430                 {
 431                         MoveTo(modulename, v);
 432                         return;
 433                 }
 434         }
 435 }
 436
 437 void InspIRCd::MoveBefore(std::string modulename, std::string before)
 438 {
 439         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 440         {
 441                 if (Config->module_names[v] == before)
 442                 {
 443                         if (v > 0)
 444                         {
 445                                 MoveTo(modulename, v-1);
 446                         }
 447                         else
 448                         {
 449                                 MoveTo(modulename, v);
 450                         }
 451                         return;
 452                 }
 453         }
 454 }
 455
 456 void InspIRCd::MoveToFirst(std::string modulename)
 457 {
 458         MoveTo(modulename,0);
 459 }
 460
 461 void InspIRCd::MoveToLast(std::string modulename)
 462 {
 463         MoveTo(modulename,this->GetModuleCount());
 464 }
 465
 466 void InspIRCd::BuildISupport()
 467 {
 468         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
 469         std::stringstream v;
 470         v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=(ohv)@%+ MAP MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
 471         v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
 472         v << MAXAWAY << " CHANMODES=b,k,l,psmnti FNC NETWORK=" << Config->Network << " MAXPARA=32";
 473         Config->data005 = v.str();
 474         FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
 475 }
 476
 477 bool InspIRCd::UnloadModule(const char* filename)
 478 {
 479         std::string filename_str = filename;
 480         for (unsigned int j = 0; j != Config->module_names.size(); j++)
 481         {
 482                 if (Config->module_names[j] == filename_str)
 483                 {
 484                         if (modules[j]->GetVersion().Flags & VF_STATIC)
 485                         {
 486                                 this->Log(DEFAULT,"Failed to unload STATIC module %s",filename);
 487                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
 488                                 return false;
 489                         }
 490                         /* Give the module a chance to tidy out all its metadata */
 491                         for (chan_hash::iterator c = this->chanlist.begin(); c != this->chanlist.end(); c++)
 492                         {
 493                                 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
 494                         }
 495                         for (user_hash::iterator u = this->clientlist.begin(); u != this->clientlist.end(); u++)
 496                         {
 497                                 modules[j]->OnCleanup(TYPE_USER,u->second);
 498                         }
 499
 500                         FOREACH_MOD_I(this,I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
 501
 502                         for(int t = 0; t < 255; t++)
 503                         {
 504                                 Config->global_implementation[t] -= Config->implement_lists[j][t];
 505                         }
 506
 507                         /* We have to renumber implement_lists after unload because the module numbers change!
 508                          */
 509                         for(int j2 = j; j2 < 254; j2++)
 510                         {
 511                                 for(int t = 0; t < 255; t++)
 512                                 {
 513                                         Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
 514                                 }
 515                         }
 516
 517                         // found the module
 518                         this->Log(DEBUG,"Removing dependent commands...");
 519                         Parser->RemoveCommands(filename);
 520                         this->Log(DEBUG,"Deleting module...");
 521                         this->EraseModule(j);
 522                         this->Log(DEBUG,"Erasing module entry...");
 523                         this->EraseFactory(j);
 524                         this->Log(DEFAULT,"Module %s unloaded",filename);
 525                         this->ModCount--;
 526                         BuildISupport();
 527                         return true;
 528                 }
 529         }
 530         this->Log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
 531         snprintf(MODERR,MAXBUF,"Module not loaded");
 532         return false;
 533 }
 534
 535 bool InspIRCd::LoadModule(const char* filename)
 536 {
 537         char modfile[MAXBUF];
 538 #ifdef STATIC_LINK
 539         strlcpy(modfile,filename,MAXBUF);
 540 #else
 541         snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
 542 #endif
 543         std::string filename_str = filename;
 544 #ifndef STATIC_LINK
 545 #ifndef IS_CYGWIN
 546         if (!ServerConfig::DirValid(modfile))
 547         {
 548                 this->Log(DEFAULT,"Module %s is not within the modules directory.",modfile);
 549                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
 550                 return false;
 551         }
 552 #endif
 553 #endif
 554         this->Log(DEBUG,"Loading module: %s",modfile);
 555 #ifndef STATIC_LINK
 556         if (ServerConfig::FileExists(modfile))
 557         {
 558 #endif
 559                 for (unsigned int j = 0; j < Config->module_names.size(); j++)
 560                 {
 561                         if (Config->module_names[j] == filename_str)
 562                         {
 563                                 this->Log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
 564                                 snprintf(MODERR,MAXBUF,"Module already loaded");
 565                                 return false;
 566                         }
 567                 }
 568                 try
 569                 {
 570                         ircd_module* a = new ircd_module(this, modfile);
 571                         factory[this->ModCount+1] = a;
 572                         if (factory[this->ModCount+1]->LastError())
 573                         {
 574                                 this->Log(DEFAULT,"Unable to load %s: %s",modfile,factory[this->ModCount+1]->LastError());
 575                                 snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[this->ModCount+1]->LastError());
 576                                 return false;
 577                         }
 578                         if ((long)factory[this->ModCount+1]->factory != -1)
 579                         {
 580                                 Module* m = factory[this->ModCount+1]->factory->CreateModule(this);
 581                                 modules[this->ModCount+1] = m;
 582                                 /* save the module and the module's classfactory, if
 583                                  * this isnt done, random crashes can occur :/ */
 584                                 Config->module_names.push_back(filename);
 585
 586                                 char* x = &Config->implement_lists[this->ModCount+1][0];
 587                                 for(int t = 0; t < 255; t++)
 588                                         x[t] = 0;
 589
 590                                 modules[this->ModCount+1]->Implements(x);
 591
 592                                 for(int t = 0; t < 255; t++)
 593                                         Config->global_implementation[t] += Config->implement_lists[this->ModCount+1][t];
 594                         }
 595                         else
 596                         {
 597                                 this->Log(DEFAULT,"Unable to load %s",modfile);
 598                                 snprintf(MODERR,MAXBUF,"Factory function failed: Probably missing init_module() entrypoint.");
 599                                 return false;
 600                         }
 601                 }
 602                 catch (ModuleException& modexcept)
 603                 {
 604                         this->Log(DEFAULT,"Unable to load %s: ",modfile,modexcept.GetReason());
 605                         snprintf(MODERR,MAXBUF,"Factory function threw an exception: %s",modexcept.GetReason());
 606                         return false;
 607                 }
 608 #ifndef STATIC_LINK
 609         }
 610         else
 611         {
 612                 this->Log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
 613                 snprintf(MODERR,MAXBUF,"Module file could not be found");
 614                 return false;
 615         }
 616 #endif
 617         this->ModCount++;
 618         FOREACH_MOD_I(this,I_OnLoadModule,OnLoadModule(modules[this->ModCount],filename_str));
 619         // now work out which modules, if any, want to move to the back of the queue,
 620         // and if they do, move them there.
 621         std::vector<std::string> put_to_back;
 622         std::vector<std::string> put_to_front;
 623         std::map<std::string,std::string> put_before;
 624         std::map<std::string,std::string> put_after;
 625         for (unsigned int j = 0; j < Config->module_names.size(); j++)
 626         {
 627                 if (modules[j]->Prioritize() == PRIORITY_LAST)
 628                 {
 629                         put_to_back.push_back(Config->module_names[j]);
 630                 }
 631                 else if (modules[j]->Prioritize() == PRIORITY_FIRST)
 632                 {
 633                         put_to_front.push_back(Config->module_names[j]);
 634                 }
 635                 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_BEFORE)
 636                 {
 637                         put_before[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
 638                 }
 639                 else if ((modules[j]->Prioritize() & 0xFF) == PRIORITY_AFTER)
 640                 {
 641                         put_after[Config->module_names[j]] = Config->module_names[modules[j]->Prioritize() >> 8];
 642                 }
 643         }
 644         for (unsigned int j = 0; j < put_to_back.size(); j++)
 645         {
 646                 MoveToLast(put_to_back[j]);
 647         }
 648         for (unsigned int j = 0; j < put_to_front.size(); j++)
 649         {
 650                 MoveToFirst(put_to_front[j]);
 651         }
 652         for (std::map<std::string,std::string>::iterator j = put_before.begin(); j != put_before.end(); j++)
 653         {
 654                 MoveBefore(j->first,j->second);
 655         }
 656         for (std::map<std::string,std::string>::iterator j = put_after.begin(); j != put_after.end(); j++)
 657         {
 658                 MoveAfter(j->first,j->second);
 659         }
 660         BuildISupport();
 661         return true;
 662 }
 663
 664 void InspIRCd::DoOneIteration(bool process_module_sockets)
 665 {
 666         EventHandler* activefds[MAX_DESCRIPTORS];
 667         unsigned int numberactive;
 668
 669         /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 670          * Once per loop iteration is pleanty.
 671          */
 672         OLDTIME = TIME;
 673         TIME = time(NULL);
 674
 675         /* Run background module timers every few seconds
 676          * (the docs say modules shouldnt rely on accurate
 677          * timing using this event, so we dont have to
 678          * time this exactly).
 679          */
 680         if (TIME != OLDTIME)
 681         {
 682                 if (TIME < OLDTIME)
 683                         WriteOpers("*** \002EH?!\002 -- Time is flowing BACKWARDS in this dimension! Clock drifted backwards %d secs.",abs(OLDTIME-TIME));
 684                 if ((TIME % 3600) == 0)
 685                 {
 686                         irc::whowas::MaintainWhoWas(TIME);
 687                 }
 688                 Timers->TickTimers(TIME);
 689                 if (process_module_sockets)
 690                         this->DoSocketTimeouts(TIME);
 691                 this->DoBackgroundUserStuff(TIME);
 692
 693                 if ((TIME % 5) == 0)
 694                 {
 695                         XLines->expire_lines();
 696                         FOREACH_MOD_I(this,I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 697                         Timers->TickMissedTimers(TIME);
 698                 }
 699         }
 700
 701         /* Call the socket engine to wait on the active
 702          * file descriptors. The socket engine has everything's
 703          * descriptors in its list... dns, modules, users,
 704          * servers... so its nice and easy, just one call.
 705          */
 706         if (!(numberactive = SE->Wait(activefds)))
 707                 return;
 708
 709         /**
 710          * Now process each of the fd's. For users, we have a fast
 711          * lookup table which can find a user by file descriptor, so
 712          * processing them by fd isnt expensive. If we have a lot of
 713          * listening ports or module sockets though, things could get
 714          * ugly.
 715          */
 716         this->Log(DEBUG,"There are %d fd's to process.",numberactive);
 717
 718         for (unsigned int activefd = 0; activefd < numberactive; activefd++)
 719         {
 720                 this->Log(DEBUG,"Handle %s event on fd %d",activefds[activefd]->Readable() ? "read" : "write", activefds[activefd]->GetFd());
 721                 activefds[activefd]->HandleEvent(activefds[activefd]->Readable() ? EVENT_READ : EVENT_WRITE);
 722         }
 723 }
 724
 725 bool InspIRCd::IsIdent(const char* n)
 726 {
 727         if (!n || !*n)
 728                 return false;
 729
 730         for (char* i = (char*)n; *i; i++)
 731         {
 732                 if ((*i >= 'A') && (*i <= '}'))
 733                 {
 734                         continue;
 735                 }
 736                 if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
 737                 {
 738                         continue;
 739                 }
 740                 return false;
 741         }
 742         return true;
 743 }
 744
 745
 746 bool InspIRCd::IsNick(const char* n)
 747 {
 748         if (!n || !*n)
 749                 return false;
 750
 751         int p = 0;
 752         for (char* i = (char*)n; *i; i++, p++)
 753         {
 754                 /* "A"-"}" can occur anywhere in a nickname */
 755                 if ((*i >= 'A') && (*i <= '}'))
 756                 {
 757                         continue;
 758                 }
 759                 /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */
 760                 if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i > n))
 761                 {
 762                         continue;
 763                 }
 764                 /* invalid character! abort */
 765                 return false;
 766         }
 767         return (p < NICKMAX - 1);
 768 }
 769
 770 int InspIRCd::Run()
 771 {
 772         while (true)
 773         {
 774                 DoOneIteration(true);
 775         }
 776         /* This is never reached -- we hope! */
 777         return 0;
 778 }
 779
 780 /**********************************************************************************/
 781
 782 /**
 783  * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
 784  */
 785
 786 int main(int argc, char** argv)
 787 {
 788         SI = new InspIRCd(argc, argv);
 789         SI->Run();
 790         delete SI;
 791         return 0;
 792 }
 793
 794 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
 795  * (until this returns true, a user will block in the waiting state, waiting to connect up to the
 796  * registration timeout maximum seconds)
 797  */
 798 bool InspIRCd::AllModulesReportReady(userrec* user)
 799 {
 800         if (!Config->global_implementation[I_OnCheckReady])
 801                 return true;
 802
 803         for (int i = 0; i <= this->GetModuleCount(); i++)
 804         {
 805                 if (Config->implement_lists[i][I_OnCheckReady])
 806                 {
 807                         int res = modules[i]->OnCheckReady(user);
 808                         if (!res)
 809                                 return false;
 810                 }
 811         }
 812         return true;
 813 }
 814
 815 int InspIRCd::GetModuleCount()
 816 {
 817         return this->ModCount;
 818 }
 819
 820 time_t InspIRCd::Time()
 821 {
 822         return TIME;
 823 }
 824