src/configreader.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 #include "configreader.h"
  18 #include <sstream>
  19 #include <fstream>
  20 #include "inspircd.h"
  21 #include "xline.h"
  22
  23 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
  24
  25 ServerConfig::ServerConfig(InspIRCd* Instance) : ServerInstance(Instance)
  26 {
  27         this->ClearStack();
  28         *TempDir = *ServerName = *Network = *ServerDesc = *AdminName = '\0';
  29         *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = '\0';
  30         *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0';
  31         *UserStats = *ModPath = *MyExecutable = *DisabledCommands = *PID = '\0';
  32         log_file = NULL;
  33         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = false;
  34         CycleHosts = writelog = AllowHalfop = true;
  35         dns_timeout = DieDelay = 5;
  36         MaxTargets = 20;
  37         NetBufferSize = 10240;
  38         SoftLimit = MAXCLIENTS;
  39         MaxConn = SOMAXCONN;
  40         MaxWhoResults = 100;
  41         debugging = 0;
  42         LogLevel = DEFAULT;
  43         maxbans.clear();
  44         WhoWasGroupSize = 10;
  45         WhoWasMaxGroups = WhoWasGroupSize * MAXCLIENTS;
  46         WhoWasMaxKeep = 3600*24*3; // 3 days
  47 }
  48
  49 void ServerConfig::ClearStack()
  50 {
  51         include_stack.clear();
  52 }
  53
  54 Module* ServerConfig::GetIOHook(int port)
  55 {
  56         std::map<int,Module*>::iterator x = IOHookModule.find(port);
  57         return (x != IOHookModule.end() ? x->second : NULL);
  58 }
  59
  60 bool ServerConfig::AddIOHook(int port, Module* iomod)
  61 {
  62         if (!GetIOHook(port))
  63         {
  64                 IOHookModule[port] = iomod;
  65                 return true;
  66         }
  67         else
  68         {
  69                 ModuleException err("Port already hooked by another module");
  70                 throw(err);
  71                 return false;
  72         }
  73 }
  74
  75 bool ServerConfig::DelIOHook(int port)
  76 {
  77         std::map<int,Module*>::iterator x = IOHookModule.find(port);
  78         if (x != IOHookModule.end())
  79         {
  80                 IOHookModule.erase(x);
  81                 return true;
  82         }
  83         return false;
  84 }
  85
  86 bool ServerConfig::CheckOnce(char* tag, bool bail, userrec* user)
  87 {
  88         int count = ConfValueEnum(this->config_data, tag);
  89
  90         if (count > 1)
  91         {
  92                 if (bail)
  93                 {
  94                         printf("There were errors in your configuration:\nYou have more than one <%s> tag, this is not permitted.\n",tag);
  95                         InspIRCd::Exit(ERROR);
  96                 }
  97                 else
  98                 {
  99                         if (user)
 100                         {
 101                                 user->WriteServ("There were errors in your configuration:");
 102                                 user->WriteServ("You have more than one <%s> tag, this is not permitted.\n",tag);
 103                         }
 104                         else
 105                         {
 106                                 ServerInstance->WriteOpers("There were errors in the configuration file:");
 107                                 ServerInstance->WriteOpers("You have more than one <%s> tag, this is not permitted.\n",tag);
 108                         }
 109                 }
 110                 return false;
 111         }
 112         if (count < 1)
 113         {
 114                 if (bail)
 115                 {
 116                         printf("There were errors in your configuration:\nYou have not defined a <%s> tag, this is required.\n",tag);
 117                         InspIRCd::Exit(ERROR);
 118                 }
 119                 else
 120                 {
 121                         if (user)
 122                         {
 123                                 user->WriteServ("There were errors in your configuration:");
 124                                 user->WriteServ("You have not defined a <%s> tag, this is required.",tag);
 125                         }
 126                         else
 127                         {
 128                                 ServerInstance->WriteOpers("There were errors in the configuration file:");
 129                                 ServerInstance->WriteOpers("You have not defined a <%s> tag, this is required.",tag);
 130                         }
 131                 }
 132                 return false;
 133         }
 134         return true;
 135 }
 136
 137 bool NoValidation(ServerConfig* conf, const char* tag, const char* value, void* data)
 138 {
 139         conf->GetInstance()->Log(DEBUG,"No validation for <%s:%s>",tag,value);
 140         return true;
 141 }
 142
 143 bool ValidateTempDir(ServerConfig* conf, const char* tag, const char* value, void* data)
 144 {
 145         char* x = (char*)data;
 146         if (!*x)
 147                 strlcpy(x,"/tmp",1024);
 148         return true;
 149 }
 150
 151 bool ValidateMaxTargets(ServerConfig* conf, const char* tag, const char* value, void* data)
 152 {
 153         int* x = (int*)data;
 154         if ((*x < 0) || (*x > 31))
 155         {
 156                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:maxtargets> value is greater than 31 or less than 0, set to 20.");
 157                 *x = 20;
 158         }
 159         return true;
 160 }
 161
 162 bool ValidateSoftLimit(ServerConfig* conf, const char* tag, const char* value, void* data)
 163 {
 164         int* x = (int*)data;
 165         if ((*x < 1) || (*x > MAXCLIENTS))
 166         {
 167                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:softlimit> value is greater than %d or less than 0, set to %d.",MAXCLIENTS,MAXCLIENTS);
 168                 *x = MAXCLIENTS;
 169         }
 170         return true;
 171 }
 172
 173 bool ValidateMaxConn(ServerConfig* conf, const char* tag, const char* value, void* data)
 174 {
 175         int* x = (int*)data;
 176         if (*x > SOMAXCONN)
 177                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 178         if (!*x)
 179                 *x = SOMAXCONN;
 180         return true;
 181 }
 182
 183 bool ValidateDnsTimeout(ServerConfig* conf, const char* tag, const char* value, void* data)
 184 {
 185         int* x = (int*)data;
 186         if (!*x)
 187                 *x = 5;
 188         return true;
 189 }
 190
 191 bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance)
 192 {
 193         std::stringstream dcmds(data);
 194         std::string thiscmd;
 195
 196         /* Enable everything first */
 197         for (nspace::hash_map<std::string,command_t*>::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 198                 x->second->Disable(false);
 199
 200         /* Now disable all the ones which the user wants disabled */
 201         while (dcmds >> thiscmd)
 202         {
 203                 nspace::hash_map<std::string,command_t*>::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 204                 if (cm != ServerInstance->Parser->cmdlist.end())
 205                 {
 206                         ServerInstance->Log(DEBUG,"Disabling command '%s'",cm->second->command.c_str());
 207                         cm->second->Disable(true);
 208                 }
 209         }
 210         return true;
 211 }
 212
 213 bool ValidateDnsServer(ServerConfig* conf, const char* tag, const char* value, void* data)
 214 {
 215         char* x = (char*)data;
 216         if (!*x)
 217         {
 218                 // attempt to look up their nameserver from /etc/resolv.conf
 219                 conf->GetInstance()->Log(DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 220                 ifstream resolv("/etc/resolv.conf");
 221                 std::string nameserver;
 222                 bool found_server = false;
 223
 224                 if (resolv.is_open())
 225                 {
 226                         while (resolv >> nameserver)
 227                         {
 228                                 if ((nameserver == "nameserver") && (!found_server))
 229                                 {
 230                                         resolv >> nameserver;
 231                                         strlcpy(x,nameserver.c_str(),MAXBUF);
 232                                         found_server = true;
 233                                         conf->GetInstance()->Log(DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 234                                 }
 235                         }
 236
 237                         if (!found_server)
 238                         {
 239                                 conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 240                                 strlcpy(x,"127.0.0.1",MAXBUF);
 241                         }
 242                 }
 243                 else
 244                 {
 245                         conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 246                         strlcpy(x,"127.0.0.1",MAXBUF);
 247                 }
 248         }
 249         return true;
 250 }
 251
 252 bool ValidateModPath(ServerConfig* conf, const char* tag, const char* value, void* data)
 253 {
 254         char* x = (char*)data;
 255         if (!*x)
 256                 strlcpy(x,MOD_PATH,MAXBUF);
 257         return true;
 258 }
 259
 260
 261 bool ValidateServerName(ServerConfig* conf, const char* tag, const char* value, void* data)
 262 {
 263         char* x = (char*)data;
 264         if (!strchr(x,'.'))
 265         {
 266                 conf->GetInstance()->Log(DEFAULT,"WARNING: <server:name> '%s' is not a fully-qualified domain name. Changed to '%s%c'",x,x,'.');
 267                 charlcat(x,'.',MAXBUF);
 268         }
 269         //strlower(x);
 270         return true;
 271 }
 272
 273 bool ValidateNetBufferSize(ServerConfig* conf, const char* tag, const char* value, void* data)
 274 {
 275         if ((!conf->NetBufferSize) || (conf->NetBufferSize > 65535) || (conf->NetBufferSize < 1024))
 276         {
 277                 conf->GetInstance()->Log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 278                 conf->NetBufferSize = 10240;
 279         }
 280         return true;
 281 }
 282
 283 bool ValidateMaxWho(ServerConfig* conf, const char* tag, const char* value, void* data)
 284 {
 285         if ((!conf->MaxWhoResults) || (conf->MaxWhoResults > 65535) || (conf->MaxWhoResults < 1))
 286         {
 287                 conf->GetInstance()->Log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 288                 conf->MaxWhoResults = 128;
 289         }
 290         return true;
 291 }
 292
 293 bool ValidateLogLevel(ServerConfig* conf, const char* tag, const char* value, void* data)
 294 {
 295         const char* dbg = (const char*)data;
 296         conf->LogLevel = DEFAULT;
 297         if (!strcmp(dbg,"debug"))
 298         {
 299                 conf->LogLevel = DEBUG;
 300                 conf->debugging = 1;
 301         }
 302         else if (!strcmp(dbg,"verbose"))
 303                 conf->LogLevel = VERBOSE;
 304         else if (!strcmp(dbg,"default"))
 305                 conf->LogLevel = DEFAULT;
 306         else if (!strcmp(dbg,"sparse"))
 307                 conf->LogLevel = SPARSE;
 308         else if (!strcmp(dbg,"none"))
 309                 conf->LogLevel = NONE;
 310         return true;
 311 }
 312
 313 bool ValidateMotd(ServerConfig* conf, const char* tag, const char* value, void* data)
 314 {
 315         conf->ReadFile(conf->MOTD,conf->motd);
 316         return true;
 317 }
 318
 319 bool ValidateRules(ServerConfig* conf, const char* tag, const char* value, void* data)
 320 {
 321         conf->ReadFile(conf->RULES,conf->rules);
 322         return true;
 323 }
 324
 325 bool ValidateWhoWas(ServerConfig* conf, const char* tag, const char* value, void* data)
 326 {
 327         const char* max = (const char*)data;
 328         conf->WhoWasMaxKeep = conf->GetInstance()->Duration(max);
 329
 330         if (conf->WhoWasGroupSize < 0)
 331                 conf->WhoWasGroupSize = 0;
 332
 333         if (conf->WhoWasMaxGroups < 0)
 334                 conf->WhoWasMaxGroups = 0;
 335
 336         if (conf->WhoWasMaxKeep < 3600)
 337                 conf->WhoWasMaxKeep = 3600;
 338
 339         irc::whowas::PruneWhoWas(conf->GetInstance(), conf->GetInstance()->Time());
 340         return true;
 341 }
 342
 343 /* Callback called before processing the first <connect> tag
 344  */
 345 bool InitConnect(ServerConfig* conf, const char* tag)
 346 {
 347         conf->GetInstance()->Log(DEFAULT,"Reading connect classes...");
 348         conf->Classes.clear();
 349         return true;
 350 }
 351
 352 /* Callback called to process a single <connect> tag
 353  */
 354 bool DoConnect(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 355 {
 356         ConnectClass c;
 357         char* allow = (char*)values[0]; /* Yeah, there are a lot of values. Live with it. */
 358         char* deny = (char*)values[1];
 359         char* password = (char*)values[2];
 360         int* timeout = (int*)values[3];
 361         int* pingfreq = (int*)values[4];
 362         int* flood = (int*)values[5];
 363         int* threshold = (int*)values[6];
 364         int* sendq = (int*)values[7];
 365         int* recvq = (int*)values[8];
 366         int* localmax = (int*)values[9];
 367         int* globalmax = (int*)values[10];
 368
 369         if (*allow)
 370         {
 371                 c.host = allow;
 372                 c.type = CC_ALLOW;
 373                 c.pass = password;
 374                 c.registration_timeout = *timeout;
 375                 c.pingtime = *pingfreq;
 376                 c.flood = *flood;
 377                 c.threshold = *threshold;
 378                 c.sendqmax = *sendq;
 379                 c.recvqmax = *recvq;
 380                 c.maxlocal = *localmax;
 381                 c.maxglobal = *globalmax;
 382
 383
 384                 if (c.maxlocal == 0)
 385                         c.maxlocal = 3;
 386                 if (c.maxglobal == 0)
 387                         c.maxglobal = 3;
 388                 if (c.threshold == 0)
 389                 {
 390                         c.threshold = 1;
 391                         c.flood = 999;
 392                         conf->GetInstance()->Log(DEFAULT,"Warning: Connect allow line '%s' has no flood/threshold settings. Setting this tag to 999 lines in 1 second.",c.host.c_str());
 393                 }
 394                 if (c.sendqmax == 0)
 395                         c.sendqmax = 262114;
 396                 if (c.recvqmax == 0)
 397                         c.recvqmax = 4096;
 398                 if (c.registration_timeout == 0)
 399                         c.registration_timeout = 90;
 400                 if (c.pingtime == 0)
 401                         c.pingtime = 120;
 402                 conf->Classes.push_back(c);
 403         }
 404         else
 405         {
 406                 c.host = deny;
 407                 c.type = CC_DENY;
 408                 conf->Classes.push_back(c);
 409                 conf->GetInstance()->Log(DEBUG,"Read connect class type DENY, host=%s",deny);
 410         }
 411
 412         return true;
 413 }
 414
 415 /* Callback called when there are no more <connect> tags
 416  */
 417 bool DoneConnect(ServerConfig* conf, const char* tag)
 418 {
 419         conf->GetInstance()->Log(DEBUG,"DoneConnect called for tag: %s",tag);
 420         return true;
 421 }
 422
 423 /* Callback called before processing the first <uline> tag
 424  */
 425 bool InitULine(ServerConfig* conf, const char* tag)
 426 {
 427         conf->ulines.clear();
 428         return true;
 429 }
 430
 431 /* Callback called to process a single <uline> tag
 432  */
 433 bool DoULine(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 434 {
 435         char* server = (char*)values[0];
 436         conf->GetInstance()->Log(DEBUG,"Read ULINE '%s'",server);
 437         conf->ulines.push_back(server);
 438         return true;
 439 }
 440
 441 /* Callback called when there are no more <uline> tags
 442  */
 443 bool DoneULine(ServerConfig* conf, const char* tag)
 444 {
 445         return true;
 446 }
 447
 448 /* Callback called before processing the first <module> tag
 449  */
 450 bool InitModule(ServerConfig* conf, const char* tag)
 451 {
 452         old_module_names.clear();
 453         new_module_names.clear();
 454         added_modules.clear();
 455         removed_modules.clear();
 456         for (std::vector<std::string>::iterator t = conf->module_names.begin(); t != conf->module_names.end(); t++)
 457         {
 458                 old_module_names.push_back(*t);
 459         }
 460         return true;
 461 }
 462
 463 /* Callback called to process a single <module> tag
 464  */
 465 bool DoModule(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 466 {
 467         char* modname = (char*)values[0];
 468         new_module_names.push_back(modname);
 469         return true;
 470 }
 471
 472 /* Callback called when there are no more <module> tags
 473  */
 474 bool DoneModule(ServerConfig* conf, const char* tag)
 475 {
 476         // now create a list of new modules that are due to be loaded
 477         // and a seperate list of modules which are due to be unloaded
 478         for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 479         {
 480                 bool added = true;
 481
 482                 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 483                 {
 484                         if (*old == *_new)
 485                                 added = false;
 486                 }
 487
 488                 if (added)
 489                         added_modules.push_back(*_new);
 490         }
 491
 492         for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 493         {
 494                 bool removed = true;
 495                 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 496                 {
 497                         if (*newm == *oldm)
 498                                 removed = false;
 499                 }
 500
 501                 if (removed)
 502                         removed_modules.push_back(*oldm);
 503         }
 504         return true;
 505 }
 506
 507 /* Callback called before processing the first <banlist> tag
 508  */
 509 bool InitMaxBans(ServerConfig* conf, const char* tag)
 510 {
 511         conf->maxbans.clear();
 512         return true;
 513 }
 514
 515 /* Callback called to process a single <banlist> tag
 516  */
 517 bool DoMaxBans(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 518 {
 519         char* channel = (char*)values[0];
 520         int* limit = (int*)values[1];
 521         conf->maxbans[channel] = *limit;
 522         return true;
 523 }
 524
 525 /* Callback called when there are no more <banlist> tags.
 526  */
 527 bool DoneMaxBans(ServerConfig* conf, const char* tag)
 528 {
 529         return true;
 530 }
 531
 532 void ServerConfig::Read(bool bail, userrec* user)
 533 {
 534         char debug[MAXBUF];             /* Temporary buffer for debugging value */
 535         char maxkeep[MAXBUF];   /* Temporary buffer for WhoWasMaxKeep value */
 536         char* data[12];                 /* Temporary buffers for reading multiple occurance tags into */
 537         void* ptr[12];                  /* Temporary pointers for passing to callbacks */
 538         int r_i[12];                    /* Temporary array for casting */
 539         int rem = 0, add = 0;           /* Number of modules added, number of modules removed */
 540         std::ostringstream errstr;      /* String stream containing the error output */
 541
 542         /* These tags MUST occur and must ONLY occur once in the config file */
 543         static char* Once[] = { "server", "admin", "files", "power", "options", NULL };
 544
 545         /* These tags can occur ONCE or not at all */
 546         static InitialConfig Values[] = {
 547                 {"options",             "softlimit",                    &this->SoftLimit,               DT_INTEGER, ValidateSoftLimit},
 548                 {"options",             "somaxconn",                    &this->MaxConn,                 DT_INTEGER, ValidateMaxConn},
 549                 {"server",              "name",                         &this->ServerName,              DT_CHARPTR, ValidateServerName},
 550                 {"server",              "description",                  &this->ServerDesc,              DT_CHARPTR, NoValidation},
 551                 {"server",              "network",                      &this->Network,                 DT_CHARPTR, NoValidation},
 552                 {"admin",               "name",                         &this->AdminName,               DT_CHARPTR, NoValidation},
 553                 {"admin",               "email",                        &this->AdminEmail,              DT_CHARPTR, NoValidation},
 554                 {"admin",               "nick",                         &this->AdminNick,               DT_CHARPTR, NoValidation},
 555                 {"files",               "motd",                         &this->motd,                    DT_CHARPTR, ValidateMotd},
 556                 {"files",               "rules",                        &this->rules,                   DT_CHARPTR, ValidateRules},
 557                 {"power",               "diepass",                      &this->diepass,                 DT_CHARPTR, NoValidation},
 558                 {"power",               "pause",                        &this->DieDelay,                DT_INTEGER, NoValidation},
 559                 {"power",               "restartpass",                  &this->restartpass,             DT_CHARPTR, NoValidation},
 560                 {"options",             "prefixquit",                   &this->PrefixQuit,              DT_CHARPTR, NoValidation},
 561                 {"die",                 "value",                        &this->DieValue,                DT_CHARPTR, NoValidation},
 562                 {"options",             "loglevel",                     &debug,                         DT_CHARPTR, ValidateLogLevel},
 563                 {"options",             "netbuffersize",                &this->NetBufferSize,           DT_INTEGER, ValidateNetBufferSize},
 564                 {"options",             "maxwho",                       &this->MaxWhoResults,           DT_INTEGER, ValidateMaxWho},
 565                 {"options",             "allowhalfop",                  &this->AllowHalfop,             DT_BOOLEAN, NoValidation},
 566                 {"dns",                 "server",                       &this->DNSServer,               DT_CHARPTR, ValidateDnsServer},
 567                 {"dns",                 "timeout",                      &this->dns_timeout,             DT_INTEGER, ValidateDnsTimeout},
 568                 {"options",             "moduledir",                    &this->ModPath,                 DT_CHARPTR, ValidateModPath},
 569                 {"disabled",            "commands",                     &this->DisabledCommands,        DT_CHARPTR, NoValidation},
 570                 {"options",             "userstats",                    &this->UserStats,               DT_CHARPTR, NoValidation},
 571                 {"options",             "customversion",                &this->CustomVersion,           DT_CHARPTR, NoValidation},
 572                 {"options",             "hidesplits",                   &this->HideSplits,              DT_BOOLEAN, NoValidation},
 573                 {"options",             "hidebans",                     &this->HideBans,                DT_BOOLEAN, NoValidation},
 574                 {"options",             "hidewhois",                    &this->HideWhoisServer,         DT_CHARPTR, NoValidation},
 575                 {"options",             "operspywhois",                 &this->OperSpyWhois,            DT_BOOLEAN, NoValidation},
 576                 {"options",             "tempdir",                      &this->TempDir,                 DT_CHARPTR, ValidateTempDir},
 577                 {"options",             "nouserdns",                    &this->NoUserDns,               DT_BOOLEAN, NoValidation},
 578                 {"options",             "syntaxhints",                  &this->SyntaxHints,             DT_BOOLEAN, NoValidation},
 579                 {"options",             "cyclehosts",                   &this->CycleHosts,              DT_BOOLEAN, NoValidation},
 580                 {"pid",                 "file",                         &this->PID,                     DT_CHARPTR, NoValidation},
 581                 {"whowas",              "groupsize",                    &this->WhoWasGroupSize,         DT_INTEGER, NoValidation},
 582                 {"whowas",              "maxgroups",                    &this->WhoWasMaxGroups,         DT_INTEGER, NoValidation},
 583                 {"whowas",              "maxkeep",                      &maxkeep,                       DT_CHARPTR, ValidateWhoWas},
 584                 {NULL}
 585         };
 586
 587         /* These tags can occur multiple times, and therefore they have special code to read them
 588          * which is different to the code for reading the singular tags listed above.
 589          */
 590         static MultiConfig MultiValues[] = {
 591
 592                 {"connect",
 593                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 594                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    NULL},
 595                                 {DT_CHARPTR,    DT_CHARPTR,     DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 596                                  DT_INTEGER,    DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER},
 597                                 InitConnect, DoConnect, DoneConnect},
 598
 599                 {"uline",
 600                                 {"server",      NULL},
 601                                 {DT_CHARPTR},
 602                                 InitULine,DoULine,DoneULine},
 603
 604                 {"banlist",
 605                                 {"chan",        "limit",        NULL},
 606                                 {DT_CHARPTR,    DT_INTEGER},
 607                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 608
 609                 {"module",
 610                                 {"name",        NULL},
 611                                 {DT_CHARPTR},
 612                                 InitModule, DoModule, DoneModule},
 613
 614                 {"badip",
 615                                 {"reason",      "ipmask",       NULL},
 616                                 {DT_CHARPTR,    DT_CHARPTR},
 617                                 InitXLine, DoZLine, DoneXLine},
 618
 619                 {"badnick",
 620                                 {"reason",      "nick",         NULL},
 621                                 {DT_CHARPTR,    DT_CHARPTR},
 622                                 InitXLine, DoQLine, DoneXLine},
 623
 624                 {"badhost",
 625                                 {"reason",      "host",         NULL},
 626                                 {DT_CHARPTR,    DT_CHARPTR},
 627                                 InitXLine, DoKLine, DoneXLine},
 628
 629                 {"exception",
 630                                 {"reason",      "host",         NULL},
 631                                 {DT_CHARPTR,    DT_CHARPTR},
 632                                 InitXLine, DoELine, DoneXLine},
 633
 634                 {"type",
 635                                 {"name",        "classes",      NULL},
 636                                 {DT_CHARPTR,    DT_CHARPTR},
 637                                 InitTypes, DoType, DoneClassesAndTypes},
 638
 639                 {"class",
 640                                 {"name",        "commands",     NULL},
 641                                 {DT_CHARPTR,    DT_CHARPTR},
 642                                 InitClasses, DoClass, DoneClassesAndTypes},
 643
 644                 {NULL}
 645         };
 646
 647         include_stack.clear();
 648
 649         /* Load and parse the config file, if there are any errors then explode */
 650
 651         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 652         ConfigDataHash newconfig;
 653
 654         if (this->LoadConf(newconfig, CONFIG_FILE, errstr))
 655         {
 656                 /* If we succeeded, set the ircd config to the new one */
 657                 this->config_data = newconfig;
 658         }
 659         else
 660         {
 661                 ServerInstance->Log(DEFAULT, "There were errors in your configuration:\n%s", errstr.str().c_str());
 662
 663                 if (bail)
 664                 {
 665                         /* Unneeded because of the ServerInstance->Log() aboive? */
 666                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 667                         InspIRCd::Exit(ERROR);
 668                 }
 669                 else
 670                 {
 671                         std::string errors = errstr.str();
 672                         std::string::size_type start;
 673                         unsigned int prefixlen;
 674
 675                         start = 0;
 676                         /* ":ServerInstance->Config->ServerName NOTICE user->nick :" */
 677                         prefixlen = strlen(this->ServerName) + strlen(user->nick) + 11;
 678
 679                         if (user)
 680                         {
 681                                 user->WriteServ("NOTICE %s :There were errors in the configuration file:",user->nick);
 682
 683                                 while(start < errors.length())
 684                                 {
 685                                         user->WriteServ("NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str());
 686                                         start += 510 - prefixlen;
 687                                 }
 688                         }
 689                         else
 690                         {
 691                                 ServerInstance->WriteOpers("There were errors in the configuration file:");
 692
 693                                 while(start < errors.length())
 694                                 {
 695                                         ServerInstance->WriteOpers(errors.substr(start, 360).c_str());
 696                                         start += 360;
 697                                 }
 698                         }
 699
 700                         return;
 701                 }
 702         }
 703
 704         /* Check we dont have more than one of singular tags, or any of them missing
 705          */
 706         for (int Index = 0; Once[Index]; Index++)
 707                 if (!CheckOnce(Once[Index],bail,user))
 708                         return;
 709
 710         /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 711          */
 712         for (int Index = 0; Values[Index].tag; Index++)
 713         {
 714                 int* val_i = (int*) Values[Index].val;
 715                 char* val_c = (char*) Values[Index].val;
 716
 717                 switch (Values[Index].datatype)
 718                 {
 719                         case DT_CHARPTR:
 720                                 /* Assuming MAXBUF here, potentially unsafe */
 721                                 ConfValue(this->config_data, Values[Index].tag, Values[Index].value, 0, val_c, MAXBUF);
 722                         break;
 723
 724                         case DT_INTEGER:
 725                                 ConfValueInteger(this->config_data, Values[Index].tag, Values[Index].value, 0, *val_i);
 726                         break;
 727
 728                         case DT_BOOLEAN:
 729                                 *val_i = ConfValueBool(this->config_data, Values[Index].tag, Values[Index].value, 0);
 730                         break;
 731
 732                         case DT_NOTHING:
 733                         break;
 734                 }
 735
 736                 Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, Values[Index].val);
 737         }
 738
 739         /* Claim memory for use when reading multiple tags
 740          */
 741         for (int n = 0; n < 12; n++)
 742                 data[n] = new char[MAXBUF];
 743
 744         /* Read the multiple-tag items (class tags, connect tags, etc)
 745          * and call the callbacks associated with them. We have three
 746          * callbacks for these, a 'start', 'item' and 'end' callback.
 747          */
 748
 749         /* XXX - Make this use ConfValueInteger and so on */
 750         for (int Index = 0; MultiValues[Index].tag; Index++)
 751         {
 752                 MultiValues[Index].init_function(this, MultiValues[Index].tag);
 753
 754                 int number_of_tags = ConfValueEnum(this->config_data, MultiValues[Index].tag);
 755
 756                 for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
 757                 {
 758                         for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
 759                         {
 760                                 ConfValue(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], tagnum, data[valuenum], MAXBUF);
 761
 762                                 switch (MultiValues[Index].datatype[valuenum])
 763                                 {
 764                                         case DT_CHARPTR:
 765                                                 ptr[valuenum] = data[valuenum];
 766                                         break;
 767                                         case DT_INTEGER:
 768                                                 r_i[valuenum] = atoi(data[valuenum]);
 769                                                 ptr[valuenum] = &r_i[valuenum];
 770                                         break;
 771                                         case DT_BOOLEAN:
 772                                                 r_i[valuenum] = ((*data[valuenum] == tolower('y')) || (*data[valuenum] == tolower('t')) || (*data[valuenum] == '1'));
 773                                                 ptr[valuenum] = &r_i[valuenum];
 774                                         break;
 775                                         default:
 776                                         break;
 777                                 }
 778                         }
 779                         MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, ptr, MultiValues[Index].datatype);
 780                 }
 781
 782                 MultiValues[Index].finish_function(this, MultiValues[Index].tag);
 783         }
 784
 785         /* Free any memory we claimed
 786          */
 787         for (int n = 0; n < 12; n++)
 788                 delete[] data[n];
 789
 790         // write once here, to try it out and make sure its ok
 791         ServerInstance->WritePID(this->PID);
 792
 793         ServerInstance->Log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 794
 795         /* If we're rehashing, let's load any new modules, and unload old ones
 796          */
 797         if (!bail)
 798         {
 799                 int found_ports = 0;
 800                 FailedPortList pl;
 801                 ServerInstance->stats->BoundPortCount = ServerInstance->BindPorts(false, found_ports, pl);
 802
 803                 if (pl.size())
 804                 {
 805                         user->WriteServ("NOTICE %s :*** Not all your client ports could be bound.", user->nick);
 806                         user->WriteServ("NOTICE %s :*** The following port%s failed to bind:", user->nick, found_ports - ServerInstance->stats->BoundPortCount != 1 ? "s" : "");
 807                         int j = 1;
 808                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 809                         {
 810                                 user->WriteServ("NOTICE %s :*** %d.   IP: %s     Port: %lu", user->nick, j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
 811                         }
 812                 }
 813
 814                 if (!removed_modules.empty())
 815                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 816                         {
 817                                 if (ServerInstance->UnloadModule(removing->c_str()))
 818                                 {
 819                                         ServerInstance->WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 820
 821                                         if (user)
 822                                                 user->WriteServ("973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 823
 824                                         rem++;
 825                                 }
 826                                 else
 827                                 {
 828                                         if (user)
 829                                                 user->WriteServ("972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->ModuleError());
 830                                 }
 831                         }
 832
 833                 if (!added_modules.empty())
 834                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 835                 {
 836                         if (ServerInstance->LoadModule(adding->c_str()))
 837                         {
 838                                 ServerInstance->WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 839
 840                                 if (user)
 841                                         user->WriteServ("975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 842
 843                                 add++;
 844                         }
 845                         else
 846                         {
 847                                 if (user)
 848                                         user->WriteServ("974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->ModuleError());
 849                         }
 850                 }
 851
 852                 ServerInstance->Log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
 853         }
 854 }
 855
 856 bool ServerConfig::LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream)
 857 {
 858         std::ifstream conf(filename);
 859         std::string line;
 860         char ch;
 861         long linenumber;
 862         bool in_tag;
 863         bool in_quote;
 864         bool in_comment;
 865
 866         linenumber = 1;
 867         in_tag = false;
 868         in_quote = false;
 869         in_comment = false;
 870
 871         /* Check if the file open failed first */
 872         if (!conf)
 873         {
 874                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
 875                 return false;
 876         }
 877
 878         /* Fix the chmod of the file to restrict it to the current user and group */
 879         chmod(filename,0600);
 880
 881         for (unsigned int t = 0; t < include_stack.size(); t++)
 882         {
 883                 if (std::string(filename) == include_stack[t])
 884                 {
 885                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
 886                         return false;
 887                 }
 888         }
 889
 890         /* It's not already included, add it to the list of files we've loaded */
 891         include_stack.push_back(filename);
 892
 893         /* Start reading characters... */
 894         while(conf.get(ch))
 895         {
 896                 /*
 897                  * Here we try and get individual tags on separate lines,
 898                  * this would be so easy if we just made people format
 899                  * their config files like that, but they don't so...
 900                  * We check for a '<' and then know the line is over when
 901                  * we get a '>' not inside quotes. If we find two '<' and
 902                  * no '>' then die with an error.
 903                  */
 904
 905                 if((ch == '#') && !in_quote)
 906                         in_comment = true;
 907
 908                 if(((ch == '\n') || (ch == '\r')) && in_quote)
 909                 {
 910                         errorstream << "Got a newline within a quoted section, this is probably a typo: " << filename << ":" << linenumber << std::endl;
 911                         return false;
 912                 }
 913
 914                 switch(ch)
 915                 {
 916                         case '\n':
 917                                 linenumber++;
 918                         case '\r':
 919                                 in_comment = false;
 920                         case '\0':
 921                                 continue;
 922                         case '\t':
 923                                 ch = ' ';
 924                 }
 925
 926                 if(in_comment)
 927                         continue;
 928
 929                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
 930                  * Note that this WILL NOT usually allow insertion of newlines,
 931                  * because a newline is two characters long. Use it primarily to
 932                  * insert the " symbol.
 933                  *
 934                  * Note that this also involves a further check when parsing the line,
 935                  * which can be found below.
 936                  */
 937                 if ((ch == '\\') && (in_quote) && (in_tag))
 938                 {
 939                         line += ch;
 940                         ServerInstance->Log(DEBUG,"Escape sequence in config line.");
 941                         char real_character;
 942                         if (conf.get(real_character))
 943                         {
 944                                 ServerInstance->Log(DEBUG,"Escaping %c", real_character);
 945                                 if (real_character == 'n')
 946                                         real_character = '\n';
 947                                 line += real_character;
 948                                 continue;
 949                         }
 950                         else
 951                         {
 952                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
 953                                 return false;
 954                         }
 955                 }
 956
 957                 line += ch;
 958
 959                 if(ch == '<')
 960                 {
 961                         if(in_tag)
 962                         {
 963                                 if(!in_quote)
 964                                 {
 965                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
 966                                         return false;
 967                                 }
 968                         }
 969                         else
 970                         {
 971                                 if(in_quote)
 972                                 {
 973                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
 974                                         return false;
 975                                 }
 976                                 else
 977                                 {
 978                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
 979                                         in_tag = true;
 980                                 }
 981                         }
 982                 }
 983                 else if(ch == '"')
 984                 {
 985                         if(in_tag)
 986                         {
 987                                 if(in_quote)
 988                                 {
 989                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
 990                                         in_quote = false;
 991                                 }
 992                                 else
 993                                 {
 994                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
 995                                         in_quote = true;
 996                                 }
 997                         }
 998                         else
 999                         {
1000                                 if(in_quote)
1001                                 {
1002                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1003                                 }
1004                                 else
1005                                 {
1006                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1007                                 }
1008                         }
1009                 }
1010                 else if(ch == '>')
1011                 {
1012                         if(!in_quote)
1013                         {
1014                                 if(in_tag)
1015                                 {
1016                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
1017                                         in_tag = false;
1018
1019                                         /*
1020                                          * If this finds an <include> then ParseLine can simply call
1021                                          * LoadConf() and load the included config into the same ConfigDataHash
1022                                          */
1023
1024                                         if(!this->ParseLine(target, line, linenumber, errorstream))
1025                                                 return false;
1026
1027                                         line.clear();
1028                                 }
1029                                 else
1030                                 {
1031                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
1032                                         return false;
1033                                 }
1034                         }
1035                 }
1036         }
1037
1038         return true;
1039 }
1040
1041 bool ServerConfig::LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream)
1042 {
1043         return this->LoadConf(target, filename.c_str(), errorstream);
1044 }
1045
1046 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long linenumber, std::ostringstream &errorstream)
1047 {
1048         std::string tagname;
1049         std::string current_key;
1050         std::string current_value;
1051         KeyValList results;
1052         bool got_name;
1053         bool got_key;
1054         bool in_quote;
1055
1056         got_name = got_key = in_quote = false;
1057
1058         // std::cout << "ParseLine(data, '" << line << "', " << linenumber << ", stream)" << std::endl;
1059
1060         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1061         {
1062                 if(!got_name)
1063                 {
1064                         /* We don't know the tag name yet. */
1065
1066                         if(*c != ' ')
1067                         {
1068                                 if(*c != '<')
1069                                 {
1070                                         tagname += *c;
1071                                 }
1072                         }
1073                         else
1074                         {
1075                                 /* We got to a space, we should have the tagname now. */
1076                                 if(tagname.length())
1077                                 {
1078                                         got_name = true;
1079                                 }
1080                         }
1081                 }
1082                 else
1083                 {
1084                         /* We have the tag name */
1085                         if (!got_key)
1086                         {
1087                                 /* We're still reading the key name */
1088                                 if (*c != '=')
1089                                 {
1090                                         if (*c != ' ')
1091                                         {
1092                                                 current_key += *c;
1093                                         }
1094                                 }
1095                                 else
1096                                 {
1097                                         /* We got an '=', end of the key name. */
1098                                         got_key = true;
1099                                 }
1100                         }
1101                         else
1102                         {
1103                                 /* We have the key name, now we're looking for quotes and the value */
1104
1105                                 /* Correctly handle escaped characters here.
1106                                  * See the XXX'ed section above.
1107                                  */
1108                                 if ((*c == '\\') && (in_quote))
1109                                 {
1110                                         c++;
1111                                         if (*c == 'n')
1112                                                 current_value += '\n';
1113                                         else
1114                                                 current_value += *c;
1115                                         continue;
1116                                 }
1117                                 if (*c == '"')
1118                                 {
1119                                         if (!in_quote)
1120                                         {
1121                                                 /* We're not already in a quote. */
1122                                                 in_quote = true;
1123                                         }
1124                                         else
1125                                         {
1126                                                 /* Leaving quotes, we have the value */
1127                                                 results.push_back(KeyVal(current_key, current_value));
1128
1129                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1130
1131                                                 in_quote = false;
1132                                                 got_key = false;
1133
1134                                                 if((tagname == "include") && (current_key == "file"))
1135                                                 {
1136                                                         if(!this->DoInclude(target, current_value, errorstream))
1137                                                                 return false;
1138                                                 }
1139
1140                                                 current_key.clear();
1141                                                 current_value.clear();
1142                                         }
1143                                 }
1144                                 else
1145                                 {
1146                                         if(in_quote)
1147                                         {
1148                                                 current_value += *c;
1149                                         }
1150                                 }
1151                         }
1152                 }
1153         }
1154
1155         /* Finished parsing the tag, add it to the config hash */
1156         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1157
1158         return true;
1159 }
1160
1161 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1162 {
1163         std::string confpath;
1164         std::string newfile;
1165         std::string::size_type pos;
1166
1167         confpath = CONFIG_FILE;
1168         newfile = file;
1169
1170         for (std::string::iterator c = newfile.begin(); c != newfile.end(); c++)
1171         {
1172                 if (*c == '\\')
1173                 {
1174                         *c = '/';
1175                 }
1176         }
1177
1178         if (file[0] != '/')
1179         {
1180                 if((pos = confpath.find("/inspircd.conf")) != std::string::npos)
1181                 {
1182                         /* Leaves us with just the path */
1183                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1184                 }
1185                 else
1186                 {
1187                         errorstream << "Couldn't get config path from: " << confpath << std::endl;
1188                         return false;
1189                 }
1190         }
1191
1192         return LoadConf(target, newfile, errorstream);
1193 }
1194
1195 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length)
1196 {
1197         std::string value;
1198         bool r = ConfValue(target, std::string(tag), std::string(var), index, value);
1199         strlcpy(result, value.c_str(), length);
1200         return r;
1201 }
1202
1203 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result)
1204 {
1205         ConfigDataHash::size_type pos = index;
1206         if((pos >= 0) && (pos < target.count(tag)))
1207         {
1208                 ConfigDataHash::const_iterator iter = target.find(tag);
1209
1210                 for(int i = 0; i < index; i++)
1211                         iter++;
1212
1213                 for(KeyValList::const_iterator j = iter->second.begin(); j != iter->second.end(); j++)
1214                 {
1215                         if(j->first == var)
1216                         {
1217                                 result = j->second;
1218                                 return true;
1219                         }
1220                 }
1221         }
1222         else if(pos == 0)
1223         {
1224                 ServerInstance->Log(DEBUG, "No <%s> tags in config file.", tag.c_str());
1225         }
1226         else
1227         {
1228                 ServerInstance->Log(DEBUG, "ConfValue got an out-of-range index %d, there are only %d occurences of %s", pos, target.count(tag), tag.c_str());
1229         }
1230
1231         return false;
1232 }
1233
1234 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1235 {
1236         return ConfValueInteger(target, std::string(tag), std::string(var), index, result);
1237 }
1238
1239 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1240 {
1241         std::string value;
1242         std::istringstream stream;
1243         bool r = ConfValue(target, tag, var, index, value);
1244         stream.str(value);
1245         if(!(stream >> result))
1246                 return false;
1247         return r;
1248 }
1249
1250 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1251 {
1252         return ConfValueBool(target, std::string(tag), std::string(var), index);
1253 }
1254
1255 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1256 {
1257         std::string result;
1258         if(!ConfValue(target, tag, var, index, result))
1259                 return false;
1260
1261         return ((result == "yes") || (result == "true") || (result == "1"));
1262 }
1263
1264 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1265 {
1266         return target.count(tag);
1267 }
1268
1269 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1270 {
1271         return target.count(tag);
1272 }
1273
1274 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1275 {
1276         return ConfVarEnum(target, std::string(tag), index);
1277 }
1278
1279 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1280 {
1281         ConfigDataHash::size_type pos = index;
1282
1283         if((pos >= 0) && (pos < target.count(tag)))
1284         {
1285                 ConfigDataHash::const_iterator iter = target.find(tag);
1286
1287                 for(int i = 0; i < index; i++)
1288                         iter++;
1289
1290                 return iter->second.size();
1291         }
1292         else if(pos == 0)
1293         {
1294                 ServerInstance->Log(DEBUG, "No <%s> tags in config file.", tag.c_str());
1295         }
1296         else
1297         {
1298                 ServerInstance->Log(DEBUG, "ConfVarEnum got an out-of-range index %d, there are only %d occurences of %s", pos, target.count(tag), tag.c_str());
1299         }
1300
1301         return 0;
1302 }
1303
1304 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1305  */
1306 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1307 {
1308         FILE* file;
1309         char linebuf[MAXBUF];
1310
1311         F.clear();
1312
1313         if (*fname != '/')
1314         {
1315                 std::string::size_type pos;
1316                 std::string confpath = CONFIG_FILE;
1317                 if((pos = confpath.find("/inspircd.conf")) != std::string::npos)
1318                 {
1319                         /* Leaves us with just the path */
1320                         std::string newfile = confpath.substr(0, pos) + std::string("/") + fname;
1321                         file =  fopen(newfile.c_str(), "r");
1322
1323                 }
1324         }
1325         else
1326                 file =  fopen(fname, "r");
1327
1328         if (file)
1329         {
1330                 while (!feof(file))
1331                 {
1332                         fgets(linebuf, sizeof(linebuf), file);
1333                         linebuf[strlen(linebuf)-1] = 0;
1334
1335                         if (!feof(file))
1336                         {
1337                                 F.push_back(*linebuf ? linebuf : " ");
1338                         }
1339                 }
1340
1341                 fclose(file);
1342         }
1343         else
1344                 return false;
1345
1346         return true;
1347 }
1348
1349 bool ServerConfig::FileExists(const char* file)
1350 {
1351         FILE *input;
1352         if ((input = fopen (file, "r")) == NULL)
1353         {
1354                 return false;
1355         }
1356         else
1357         {
1358                 fclose(input);
1359                 return true;
1360         }
1361 }
1362
1363 char* ServerConfig::CleanFilename(char* name)
1364 {
1365         char* p = name + strlen(name);
1366         while ((p != name) && (*p != '/')) p--;
1367         return (p != name ? ++p : p);
1368 }
1369
1370
1371 bool ServerConfig::DirValid(const char* dirandfile)
1372 {
1373         char work[MAXBUF];
1374         char buffer[MAXBUF];
1375         char otherdir[MAXBUF];
1376         int p;
1377
1378         strlcpy(work, dirandfile, MAXBUF);
1379         p = strlen(work);
1380
1381         // we just want the dir
1382         while (*work)
1383         {
1384                 if (work[p] == '/')
1385                 {
1386                         work[p] = '\0';
1387                         break;
1388                 }
1389
1390                 work[p--] = '\0';
1391         }
1392
1393         // Get the current working directory
1394         if (getcwd(buffer, MAXBUF ) == NULL )
1395                 return false;
1396
1397         chdir(work);
1398
1399         if (getcwd(otherdir, MAXBUF ) == NULL )
1400                 return false;
1401
1402         chdir(buffer);
1403
1404         size_t t = strlen(work);
1405
1406         if (strlen(otherdir) >= t)
1407         {
1408                 otherdir[t] = '\0';
1409
1410                 if (!strcmp(otherdir,work))
1411                 {
1412                         return true;
1413                 }
1414
1415                 return false;
1416         }
1417         else
1418         {
1419                 return false;
1420         }
1421 }
1422
1423 std::string ServerConfig::GetFullProgDir(char** argv, int argc)
1424 {
1425         char work[MAXBUF];
1426         char buffer[MAXBUF];
1427         char otherdir[MAXBUF];
1428         int p;
1429
1430         strlcpy(work,argv[0],MAXBUF);
1431         p = strlen(work);
1432
1433         // we just want the dir
1434         while (*work)
1435         {
1436                 if (work[p] == '/')
1437                 {
1438                         work[p] = '\0';
1439                         break;
1440                 }
1441
1442                 work[p--] = '\0';
1443         }
1444
1445         // Get the current working directory
1446         if (getcwd(buffer, MAXBUF) == NULL)
1447                 return "";
1448
1449         chdir(work);
1450
1451         if (getcwd(otherdir, MAXBUF) == NULL)
1452                 return "";
1453
1454         chdir(buffer);
1455         return otherdir;
1456 }
1457
1458 InspIRCd* ServerConfig::GetInstance()
1459 {
1460         return ServerInstance;
1461 }
1462