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