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