src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd_config.h"
  22 #include "inspircd.h"
  23 #include "inspircd_io.h"
  24 #include <unistd.h>
  25 #include <fcntl.h>
  26 #include <sys/errno.h>
  27 #include <sys/ioctl.h>
  28 #include <sys/utsname.h>
  29 #include <time.h>
  30 #include <string>
  31 #ifdef GCC3
  32 #include <ext/hash_map>
  33 #else
  34 #include <hash_map>
  35 #endif
  36 #include <map>
  37 #include <sstream>
  38 #include <vector>
  39 #include <deque>
  40 #ifdef THREADED_DNS
  41 #include <pthread.h>
  42 #endif
  43 #include "users.h"
  44 #include "ctables.h"
  45 #include "globals.h"
  46 #include "modules.h"
  47 #include "dynamic.h"
  48 #include "wildcard.h"
  49 #include "message.h"
  50 #include "mode.h"
  51 #include "commands.h"
  52 #include "xline.h"
  53 #include "inspstring.h"
  54 #include "dnsqueue.h"
  55 #include "helperfuncs.h"
  56 #include "hashcomp.h"
  57 #include "socketengine.h"
  58 #include "userprocess.h"
  59 #include "socket.h"
  60 #include "typedefs.h"
  61 #include "command_parse.h"
  62
  63 InspIRCd* ServerInstance;
  64
  65 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  66 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  67
  68 extern std::vector<Module*> modules;
  69 extern std::vector<ircd_module*> factory;
  70
  71 std::vector<InspSocket*> module_sockets;
  72 std::vector<userrec*> local_users;
  73
  74 extern int MODCOUNT;
  75 int openSockfd[MAXSOCKS];
  76 sockaddr_in client,server;
  77 socklen_t length;
  78
  79 extern InspSocket* socket_ref[MAX_DESCRIPTORS];
  80
  81 time_t TIME = time(NULL), OLDTIME = time(NULL);
  82
  83 // This table references users by file descriptor.
  84 // its an array to make it VERY fast, as all lookups are referenced
  85 // by an integer, meaning there is no need for a scan/search operation.
  86 userrec* fd_ref_table[MAX_DESCRIPTORS];
  87
  88 Server* MyServer = new Server;
  89 ServerConfig *Config = new ServerConfig;
  90
  91 user_hash clientlist;
  92 chan_hash chanlist;
  93 whowas_hash whowas;
  94 servernamelist servernames;
  95 char lowermap[255];
  96
  97 void AddServerName(std::string servername)
  98 {
  99         log(DEBUG,"Adding server name: %s",servername.c_str());
 100         for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
 101         {
 102                 if (*a == servername)
 103                         return;
 104         }
 105         servernames.push_back(servername);
 106 }
 107
 108 const char* FindServerNamePtr(std::string servername)
 109 {
 110         for (servernamelist::iterator a = servernames.begin(); a < servernames.end(); a++)
 111         {
 112                 if (*a == servername)
 113                         return a->c_str();
 114         }
 115         AddServerName(servername);
 116         return FindServerNamePtr(servername);
 117 }
 118
 119 std::string InspIRCd::GetRevision()
 120 {
 121         /* w00t got me to replace a bunch of strtok_r
 122          * with something nicer, so i did this. Its the
 123          * same thing really, only in C++. It places the
 124          * text into a std::stringstream which is a readable
 125          * and writeable buffer stream, and then pops two
 126          * words off it, space delimited. Because it reads
 127          * into the same variable twice, the first word
 128          * is discarded, and the second one returned.
 129          */
 130         std::stringstream Revision("$Revision$");
 131         std::string single;
 132         Revision >> single >> single;
 133         return single;
 134 }
 135
 136 void InspIRCd::MakeLowerMap()
 137 {
 138         // initialize the lowercase mapping table
 139         for (unsigned int cn = 0; cn < 256; cn++)
 140                 lowermap[cn] = cn;
 141         // lowercase the uppercase chars
 142         for (unsigned int cn = 65; cn < 91; cn++)
 143                 lowermap[cn] = tolower(cn);
 144         // now replace the specific chars for scandanavian comparison
 145         lowermap[(unsigned)'['] = '{';
 146         lowermap[(unsigned)']'] = '}';
 147         lowermap[(unsigned)'\\'] = '|';
 148 }
 149
 150 InspIRCd::InspIRCd(int argc, char** argv)
 151 {
 152         Start();
 153         module_sockets.clear();
 154         this->startup_time = time(NULL);
 155         srand(time(NULL));
 156         log(DEBUG,"*** InspIRCd starting up!");
 157         if (!FileExists(CONFIG_FILE))
 158         {
 159                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
 160                 log(DEFAULT,"main: no config");
 161                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
 162                 Exit(ERROR);
 163         }
 164         if (argc > 1) {
 165                 for (int i = 1; i < argc; i++)
 166                 {
 167                         if (!strcmp(argv[i],"-nofork")) {
 168                                 Config->nofork = true;
 169                         }
 170                         if (!strcmp(argv[i],"-wait")) {
 171                                 sleep(6);
 172                         }
 173                         if (!strcmp(argv[i],"-nolimit")) {
 174                                 Config->unlimitcore = true;
 175                         }
 176                 }
 177         }
 178
 179         strlcpy(Config->MyExecutable,argv[0],MAXBUF);
 180
 181         this->MakeLowerMap();
 182
 183         OpenLog(argv, argc);
 184         Config->ClearStack();
 185         Config->Read(true,NULL);
 186         CheckRoot();
 187         this->ModeGrok = new ModeParser();
 188         this->Parser = new CommandParser();
 189         this->stats = new serverstats();
 190         AddServerName(Config->ServerName);
 191         CheckDie();
 192         stats->BoundPortCount = BindPorts();
 193
 194         for(int t = 0; t < 255; t++)
 195                 Config->global_implementation[t] = 0;
 196
 197         memset(&Config->implement_lists,0,sizeof(Config->implement_lists));
 198
 199         printf("\n");
 200         SetSignals();
 201         if (!Config->nofork)
 202         {
 203                 if (DaemonSeed() == ERROR)
 204                 {
 205                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
 206                         Exit(ERROR);
 207                 }
 208         }
 209
 210         /* Because of limitations in kqueue on freebsd, we must fork BEFORE we
 211          * initialize the socket engine.
 212          */
 213         SE = new SocketEngine();
 214
 215         /* We must load the modules AFTER initializing the socket engine, now */
 216
 217         return;
 218 }
 219
 220 std::string InspIRCd::GetVersionString()
 221 {
 222         char versiondata[MAXBUF];
 223 #ifdef THREADED_DNS
 224         char dnsengine[] = "multithread";
 225 #else
 226         char dnsengine[] = "singlethread";
 227 #endif
 228         if (*Config->CustomVersion)
 229         {
 230                 snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s",VERSION,GetRevision().c_str(),Config->ServerName,Config->CustomVersion);
 231         }
 232         else
 233         {
 234                 snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s [FLAGS=%lu,%s,%s]",VERSION,GetRevision().c_str(),Config->ServerName,SYSTEM,(unsigned long)OPTIMISATION,SE->GetName().c_str(),dnsengine);
 235         }
 236         return versiondata;
 237 }
 238
 239 char* InspIRCd::ModuleError()
 240 {
 241         return MODERR;
 242 }
 243
 244 void InspIRCd::erase_factory(int j)
 245 {
 246         int v = 0;
 247         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
 248         {
 249                 if (v == j)
 250                 {
 251                         factory.erase(t);
 252                         factory.push_back(NULL);
 253                         return;
 254                 }
 255                 v++;
 256         }
 257 }
 258
 259 void InspIRCd::erase_module(int j)
 260 {
 261         int v1 = 0;
 262         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
 263         {
 264                 if (v1 == j)
 265                 {
 266                         delete *m;
 267                         modules.erase(m);
 268                         modules.push_back(NULL);
 269                         break;
 270                 }
 271                 v1++;
 272         }
 273         int v2 = 0;
 274         for (std::vector<std::string>::iterator v = Config->module_names.begin(); v != Config->module_names.end(); v++)
 275         {
 276                 if (v2 == j)
 277                 {
 278                        Config->module_names.erase(v);
 279                        break;
 280                 }
 281                 v2++;
 282         }
 283
 284 }
 285
 286 void InspIRCd::MoveTo(std::string modulename,int slot)
 287 {
 288         unsigned int v2 = 256;
 289         log(DEBUG,"Moving %s to slot %d",modulename.c_str(),slot);
 290         for (unsigned int v = 0; v < Config->module_names.size(); v++)
 291         {
 292                 if (Config->module_names[v] == modulename)
 293                 {
 294                         // found an instance, swap it with the item at MODCOUNT
 295                         v2 = v;
 296                         break;
 297                 }
 298         }
 299         if (v2 == (unsigned int)slot)
 300         {
 301                 log(DEBUG,"Item %s already in slot %d!",modulename.c_str(),slot);
 302         }
 303         else if (v2 < 256)
 304         {
 305                 // Swap the module names over
 306                 Config->module_names[v2] = Config->module_names[slot];
 307                 Config->module_names[slot] = modulename;
 308                 // now swap the module factories
 309                 ircd_module* temp = factory[v2];
 310                 factory[v2] = factory[slot];
 311                 factory[slot] = temp;
 312                 // now swap the module objects
 313                 Module* temp_module = modules[v2];
 314                 modules[v2] = modules[slot];
 315                 modules[slot] = temp_module;
 316                 // now swap the implement lists (we dont
 317                 // need to swap the global or recount it)
 318                 for (int n = 0; n < 255; n++)
 319                 {
 320                         char x = Config->implement_lists[v2][n];
 321                         Config->implement_lists[v2][n] = Config->implement_lists[slot][n];
 322                         Config->implement_lists[slot][n] = x;
 323                 }
 324                 log(DEBUG,"Moved %s to slot successfully",modulename.c_str());
 325         }
 326         else
 327         {
 328                 log(DEBUG,"Move of %s to slot failed!",modulename.c_str());
 329         }
 330 }
 331
 332 void InspIRCd::MoveToFirst(std::string modulename)
 333 {
 334         MoveTo(modulename,0);
 335 }
 336
 337 void InspIRCd::MoveToLast(std::string modulename)
 338 {
 339         MoveTo(modulename,MODCOUNT);
 340 }
 341
 342 void InspIRCd::BuildISupport()
 343 {
 344         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
 345         std::stringstream v;
 346         v << "WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS << " MAXBANS=60 NICKLEN=" << NICKMAX-1;
 347         v << " CASEMAPPING=rfc1459 STATUSMSG=@+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN=";
 348         v << MAXAWAY << " CHANMODES=ohvb,k,l,psmnti NETWORK=" << Config->Network;
 349         Config->data005 = v.str();
 350         FOREACH_MOD(I_On005Numeric,On005Numeric(Config->data005));
 351 }
 352
 353 bool InspIRCd::UnloadModule(const char* filename)
 354 {
 355         std::string filename_str = filename;
 356         for (unsigned int j = 0; j != Config->module_names.size(); j++)
 357         {
 358                 if (Config->module_names[j] == filename_str)
 359                 {
 360                         if (modules[j]->GetVersion().Flags & VF_STATIC)
 361                         {
 362                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
 363                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
 364                                 return false;
 365                         }
 366                         /* Give the module a chance to tidy out all its metadata */
 367                         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
 368                         {
 369                                 modules[j]->OnCleanup(TYPE_CHANNEL,c->second);
 370                         }
 371                         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
 372                         {
 373                                 modules[j]->OnCleanup(TYPE_USER,u->second);
 374                         }
 375
 376                         FOREACH_MOD(I_OnUnloadModule,OnUnloadModule(modules[j],Config->module_names[j]));
 377
 378                         for(int t = 0; t < 255; t++)
 379                         {
 380                                 Config->global_implementation[t] -= Config->implement_lists[j][t];
 381                         }
 382
 383                         /* We have to renumber implement_lists after unload because the module numbers change!
 384                          */
 385                         for(int j2 = j; j2 < 254; j2++)
 386                         {
 387                                 for(int t = 0; t < 255; t++)
 388                                 {
 389                                         Config->implement_lists[j2][t] = Config->implement_lists[j2+1][t];
 390                                 }
 391                         }
 392
 393                         // found the module
 394                         log(DEBUG,"Deleting module...");
 395                         erase_module(j);
 396                         log(DEBUG,"Erasing module entry...");
 397                         erase_factory(j);
 398                         log(DEBUG,"Removing dependent commands...");
 399                         Parser->RemoveCommands(filename);
 400                         log(DEFAULT,"Module %s unloaded",filename);
 401                         MODCOUNT--;
 402                         BuildISupport();
 403                         return true;
 404                 }
 405         }
 406         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
 407         snprintf(MODERR,MAXBUF,"Module not loaded");
 408         return false;
 409 }
 410
 411 bool InspIRCd::LoadModule(const char* filename)
 412 {
 413         char modfile[MAXBUF];
 414 #ifdef STATIC_LINK
 415         strlcpy(modfile,filename,MAXBUF);
 416 #else
 417         snprintf(modfile,MAXBUF,"%s/%s",Config->ModPath,filename);
 418 #endif
 419         std::string filename_str = filename;
 420 #ifndef STATIC_LINK
 421         if (!DirValid(modfile))
 422         {
 423                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
 424                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
 425                 return false;
 426         }
 427 #endif
 428         log(DEBUG,"Loading module: %s",modfile);
 429 #ifndef STATIC_LINK
 430         if (FileExists(modfile))
 431         {
 432 #endif
 433                 for (unsigned int j = 0; j < Config->module_names.size(); j++)
 434                 {
 435                         if (Config->module_names[j] == filename_str)
 436                         {
 437                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
 438                                 snprintf(MODERR,MAXBUF,"Module already loaded");
 439                                 return false;
 440                         }
 441                 }
 442                 ircd_module* a = new ircd_module(modfile);
 443                 factory[MODCOUNT+1] = a;
 444                 if (factory[MODCOUNT+1]->LastError())
 445                 {
 446                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
 447                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
 448                         MODCOUNT--;
 449                         return false;
 450                 }
 451                 if (factory[MODCOUNT+1]->factory)
 452                 {
 453                         Module* m = factory[MODCOUNT+1]->factory->CreateModule(MyServer);
 454                         modules[MODCOUNT+1] = m;
 455                         /* save the module and the module's classfactory, if
 456                          * this isnt done, random crashes can occur :/ */
 457                         Config->module_names.push_back(filename);
 458
 459                         char* x = &Config->implement_lists[MODCOUNT+1][0];
 460                         for(int t = 0; t < 255; t++)
 461                                 x[t] = 0;
 462
 463                         modules[MODCOUNT+1]->Implements(x);
 464
 465                         for(int t = 0; t < 255; t++)
 466                         {
 467                                 Config->global_implementation[t] += Config->implement_lists[MODCOUNT+1][t];
 468                                 if (Config->implement_lists[MODCOUNT+1][t])
 469                                 {
 470                                         log(DEBUG,"Add global implementation: %d %d => %d",MODCOUNT+1,t,Config->global_implementation[t]);
 471                                 }
 472                         }
 473                 }
 474                 else
 475                 {
 476                         log(DEFAULT,"Unable to load %s",modfile);
 477                         snprintf(MODERR,MAXBUF,"Factory function failed!");
 478                         return false;
 479                 }
 480 #ifndef STATIC_LINK
 481         }
 482         else
 483         {
 484                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
 485                 snprintf(MODERR,MAXBUF,"Module file could not be found");
 486                 return false;
 487         }
 488 #endif
 489         MODCOUNT++;
 490         FOREACH_MOD(I_OnLoadModule,OnLoadModule(modules[MODCOUNT],filename_str));
 491         // now work out which modules, if any, want to move to the back of the queue,
 492         // and if they do, move them there.
 493         std::vector<std::string> put_to_back;
 494         std::vector<std::string> put_to_front;
 495         for (unsigned int j = 0; j < Config->module_names.size(); j++)
 496         {
 497                 if (modules[j]->Prioritize() == PRIORITY_LAST)
 498                 {
 499                         put_to_back.push_back(Config->module_names[j]);
 500                 }
 501                 else if (modules[j]->Prioritize() == PRIORITY_FIRST)
 502                 {
 503                         put_to_front.push_back(Config->module_names[j]);
 504                 }
 505         }
 506         for (unsigned int j = 0; j < put_to_back.size(); j++)
 507         {
 508                 MoveToLast(put_to_back[j]);
 509         }
 510         for (unsigned int j = 0; j < put_to_front.size(); j++)
 511         {
 512                 MoveToFirst(put_to_front[j]);
 513         }
 514         BuildISupport();
 515         return true;
 516 }
 517
 518 int InspIRCd::Run()
 519 {
 520         bool expire_run = false;
 521         int activefds[MAX_DESCRIPTORS];
 522         int incomingSockfd;
 523         int in_port;
 524         userrec* cu = NULL;
 525         InspSocket* s = NULL;
 526         InspSocket* s_del = NULL;
 527         char* target;
 528         unsigned int numberactive;
 529         sockaddr_in sock_us;     // our port number
 530         socklen_t uslen;         // length of our port number
 531
 532         /* Until THIS point, ServerInstance == NULL */
 533
 534         LoadAllModules(this);
 535
 536         printf("\nInspIRCd is now running!\n");
 537
 538         if (!Config->nofork)
 539         {
 540                 freopen("/dev/null","w",stdout);
 541                 freopen("/dev/null","w",stderr);
 542         }
 543
 544         /* Add the listening sockets used for client inbound connections
 545          * to the socket engine
 546          */
 547         for (int count = 0; count < stats->BoundPortCount; count++)
 548                 SE->AddFd(openSockfd[count],true,X_LISTEN);
 549
 550         WritePID(Config->PID);
 551
 552         /* main loop, this never returns */
 553         for (;;)
 554         {
 555                 /* time() seems to be a pretty expensive syscall, so avoid calling it too much.
 556                  * Once per loop iteration is pleanty.
 557                  */
 558                 OLDTIME = TIME;
 559                 TIME = time(NULL);
 560
 561                 /* Run background module timers every few seconds
 562                  * (the docs say modules shouldnt rely on accurate
 563                  * timing using this event, so we dont have to
 564                  * time this exactly).
 565                  */
 566                 if (((TIME % 8) == 0) && (!expire_run))
 567                 {
 568                         expire_lines();
 569                         FOREACH_MOD(I_OnBackgroundTimer,OnBackgroundTimer(TIME));
 570                         expire_run = true;
 571                         continue;
 572                 }
 573                 else if ((TIME % 8) == 1)
 574                 {
 575                         expire_run = false;
 576                 }
 577
 578                 /* Once a second, do the background processing */
 579                 if (TIME != OLDTIME)
 580                         DoBackgroundUserStuff(TIME);
 581
 582                 /* Call the socket engine to wait on the active
 583                  * file descriptors. The socket engine has everything's
 584                  * descriptors in its list... dns, modules, users,
 585                  * servers... so its nice and easy, just one call.
 586                  */
 587                 if (!(numberactive = SE->Wait(activefds)))
 588                         continue;
 589
 590                 /**
 591                  * Now process each of the fd's. For users, we have a fast
 592                  * lookup table which can find a user by file descriptor, so
 593                  * processing them by fd isnt expensive. If we have a lot of
 594                  * listening ports or module sockets though, things could get
 595                  * ugly.
 596                  */
 597                 for (unsigned int activefd = 0; activefd < numberactive; activefd++)
 598                 {
 599                         int socket_type = SE->GetType(activefds[activefd]);
 600                         switch (socket_type)
 601                         {
 602                                 case X_ESTAB_CLIENT:
 603
 604                                         cu = fd_ref_table[activefds[activefd]];
 605                                         if (cu)
 606                                                 ProcessUser(cu);
 607
 608                                 break;
 609
 610                                 case X_ESTAB_MODULE:
 611
 612                                         /* Process module-owned sockets.
 613                                          * Modules are encouraged to inherit their sockets from
 614                                          * InspSocket so we can process them neatly like this.
 615                                          */
 616                                         s = socket_ref[activefds[activefd]];
 617
 618                                         if ((s) && (!s->Poll()))
 619                                         {
 620                                                 log(DEBUG,"Socket poll returned false, close and bail");
 621                                                 SE->DelFd(s->GetFd());
 622                                                 for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
 623                                                 {
 624                                                         s_del = (InspSocket*)*a;
 625                                                         if ((s_del) && (s_del->GetFd() == activefds[activefd]))
 626                                                         {
 627                                                                 module_sockets.erase(a);
 628                                                                 break;
 629                                                         }
 630                                                 }
 631                                                 s->Close();
 632                                                 delete s;
 633                                         }
 634
 635                                 break;
 636
 637                                 case X_ESTAB_DNS:
 638
 639                                         /* When we are using single-threaded dns,
 640                                          * the sockets for dns end up in our mainloop.
 641                                          * When we are using multi-threaded dns,
 642                                          * each thread has its own basic poll() loop
 643                                          * within it, making them 'fire and forget'
 644                                          * and independent of the mainloop.
 645                                          */
 646 #ifndef THREADED_DNS
 647                                         dns_poll(activefds[activefd]);
 648 #endif
 649                                 break;
 650
 651                                 case X_LISTEN:
 652
 653                                         /* It's a listener */
 654                                         uslen = sizeof(sock_us);
 655                                         length = sizeof(client);
 656                                         incomingSockfd = accept (activefds[activefd],(struct sockaddr*)&client,&length);
 657
 658                                         if ((incomingSockfd > -1) && (!getsockname(incomingSockfd,(sockaddr*)&sock_us,&uslen)))
 659                                         {
 660                                                 in_port = ntohs(sock_us.sin_port);
 661                                                 log(DEBUG,"Accepted socket %d",incomingSockfd);
 662                                                 target = (char*)inet_ntoa(client.sin_addr);
 663                                                 /* Years and years ago, we used to resolve here
 664                                                  * using gethostbyaddr(). That is sucky and we
 665                                                  * don't do that any more...
 666                                                  */
 667                                                 NonBlocking(incomingSockfd);
 668                                                 if (Config->GetIOHook(in_port))
 669                                                 {
 670                                                         Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, target, in_port);
 671                                                 }
 672                                                 stats->statsAccept++;
 673                                                 AddClient(incomingSockfd, target, in_port, false, target);
 674                                                 log(DEBUG,"Adding client on port %lu fd=%lu",(unsigned long)in_port,(unsigned long)incomingSockfd);
 675                                         }
 676                                         else
 677                                         {
 678                                                 log(DEBUG,"Accept failed on fd %lu: %s",(unsigned long)incomingSockfd,strerror(errno));
 679                                                 shutdown(incomingSockfd,2);
 680                                                 close(incomingSockfd);
 681                                                 stats->statsRefused++;
 682                                         }
 683                                 break;
 684
 685                                 default:
 686                                         /* Something went wrong if we're in here.
 687                                          * In fact, so wrong, im not quite sure
 688                                          * what we would do, so for now, its going
 689                                          * to safely do bugger all.
 690                                          */
 691                                 break;
 692                         }
 693                 }
 694
 695         }
 696         /* This is never reached -- we hope! */
 697         return 0;
 698 }
 699
 700 /**********************************************************************************/
 701
 702 /**
 703  * An ircd in four lines! bwahahaha. ahahahahaha. ahahah *cough*.
 704  */
 705
 706 int main(int argc, char** argv)
 707 {
 708         ServerInstance = new InspIRCd(argc, argv);
 709         ServerInstance->Run();
 710         delete ServerInstance;
 711         return 0;
 712 }
 713