src/ngircd/conf.c

   1 /*
   2  * ngIRCd -- The Next Generation IRC Daemon
   3  * Copyright (c)2001,2002 Alexander Barton (alex@barton.de)
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  * Please read the file COPYING, README and AUTHORS for more information.
  10  *
  11  * Configuration management (reading, parsing & validation)
  12  */
  13
  14
  15 #include "portab.h"
  16
  17 #include "imp.h"
  18 #include <assert.h>
  19 #include <errno.h>
  20 #ifdef PROTOTYPES
  21 #       include <stdarg.h>
  22 #else
  23 #       include <varargs.h>
  24 #endif
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <strings.h>
  29 #include <unistd.h>
  30 #include <pwd.h>
  31 #include <grp.h>
  32 #include <sys/types.h>
  33 #include <unistd.h>
  34
  35 #ifdef HAVE_CTYPE_H
  36 # include <ctype.h>
  37 #endif
  38
  39 #include "array.h"
  40 #include "ngircd.h"
  41 #include "conn.h"
  42 #include "client.h"
  43 #include "defines.h"
  44 #include "log.h"
  45 #include "resolve.h"
  46 #include "tool.h"
  47
  48 #include "exp.h"
  49 #include "conf.h"
  50
  51
  52 static bool Use_Log = true;
  53 static CONF_SERVER New_Server;
  54 static int New_Server_Idx;
  55
  56
  57 static void Set_Defaults PARAMS(( bool InitServers ));
  58 static bool Read_Config PARAMS(( bool ngircd_starting ));
  59 static bool Validate_Config PARAMS(( bool TestOnly, bool Rehash ));
  60
  61 static void Handle_GLOBAL PARAMS(( int Line, char *Var, char *Arg ));
  62 static void Handle_OPERATOR PARAMS(( int Line, char *Var, char *Arg ));
  63 static void Handle_SERVER PARAMS(( int Line, char *Var, char *Arg ));
  64 static void Handle_CHANNEL PARAMS(( int Line, char *Var, char *Arg ));
  65
  66 static void Config_Error PARAMS(( const int Level, const char *Format, ... ));
  67
  68 static void Config_Error_NaN PARAMS(( const int LINE, const char *Value ));
  69 static void Config_Error_TooLong PARAMS(( const int LINE, const char *Value ));
  70
  71 static void Init_Server_Struct PARAMS(( CONF_SERVER *Server ));
  72
  73 #ifdef WANT_IPV6
  74 #define DEFAULT_LISTEN_ADDRSTR "::,0.0.0.0"
  75 #else
  76 #define DEFAULT_LISTEN_ADDRSTR "0.0.0.0"
  77 #endif
  78
  79 #ifdef SSL_SUPPORT
  80 struct SSLOptions Conf_SSLOptions;
  81
  82 static void
  83 ConfSSL_Init(void)
  84 {
  85         free(Conf_SSLOptions.KeyFile);
  86         Conf_SSLOptions.KeyFile = NULL;
  87
  88         free(Conf_SSLOptions.CertFile);
  89         Conf_SSLOptions.CertFile = NULL;
  90
  91         free(Conf_SSLOptions.DHFile);
  92         Conf_SSLOptions.DHFile = NULL;
  93         array_free_wipe(&Conf_SSLOptions.KeyFilePassword);
  94 }
  95
  96
  97 static void
  98 ConfSSL_Puts(void)
  99 {
 100         if (Conf_SSLOptions.KeyFile)
 101                 printf( "  SSLKeyFile = %s\n", Conf_SSLOptions.KeyFile);
 102         if (Conf_SSLOptions.CertFile)
 103                 printf( "  SSLCertFile = %s\n", Conf_SSLOptions.CertFile);
 104         if (Conf_SSLOptions.DHFile)
 105                 printf( "  SSLDHFile = %s\n", Conf_SSLOptions.DHFile);
 106         if (array_bytes(&Conf_SSLOptions.KeyFilePassword))
 107                 puts("  SSLKeyFilePassword = <secret>"  );
 108         array_free_wipe(&Conf_SSLOptions.KeyFilePassword);
 109 }
 110 #endif
 111
 112 static char *
 113 strdup_warn(const char *str)
 114 {
 115         char *ptr = strdup(str);
 116         if (!ptr)
 117                 Config_Error(LOG_ERR, "Could not allocate mem for string: %s", str);
 118         return ptr;
 119 }
 120
 121
 122 static void
 123 ports_puts(array *a)
 124 {
 125         size_t len;
 126         UINT16 *ports;
 127         len = array_length(a, sizeof(UINT16));
 128         if (len--) {
 129                 ports = (UINT16*) array_start(a);
 130                 printf("%u", (unsigned int) *ports);
 131                 while (len--) {
 132                         ports++;
 133                         printf(", %u", (unsigned int) *ports);
 134                 }
 135         }
 136         putc('\n', stdout);
 137 }
 138
 139
 140 static void
 141 ports_parse(array *a, int Line, char *Arg)
 142 {
 143         char *ptr;
 144         int port;
 145         UINT16 port16;
 146
 147         array_trunc(a);
 148
 149         /* Ports on that the server should listen. More port numbers
 150          * must be separated by "," */
 151         ptr = strtok( Arg, "," );
 152         while (ptr) {
 153                 ngt_TrimStr( ptr );
 154                 port = atol( ptr );
 155                 if (port > 0 && port < 0xFFFF) {
 156                         port16 = (UINT16) port;
 157                         if (!array_catb(a, (char*)&port16, sizeof port16))
 158                                 Config_Error(LOG_ERR, "%s, line %d Could not add port number %ld: %s",
 159                                                         NGIRCd_ConfFile, Line, port, strerror(errno));
 160                 } else {
 161                         Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Illegal port number %ld!",
 162                                                                         NGIRCd_ConfFile, Line, port );
 163                 }
 164
 165                 ptr = strtok( NULL, "," );
 166         }
 167 }
 168
 169
 170 GLOBAL void
 171 Conf_Init( void )
 172 {
 173         Read_Config( true );
 174         Validate_Config(false, false);
 175 } /* Config_Init */
 176
 177
 178 GLOBAL bool
 179 Conf_Rehash( void )
 180 {
 181         if (!Read_Config(false))
 182                 return false;
 183         Validate_Config(false, true);
 184
 185         /* Update CLIENT structure of local server */
 186         Client_SetInfo(Client_ThisServer(), Conf_ServerInfo);
 187         return true;
 188 } /* Config_Rehash */
 189
 190
 191 static const char*
 192 yesno_to_str(int boolean_value)
 193 {
 194         if (boolean_value)
 195                 return "yes";
 196         return "no";
 197 }
 198
 199
 200 GLOBAL int
 201 Conf_Test( void )
 202 {
 203         /* Read configuration, validate and output it. */
 204
 205         struct passwd *pwd;
 206         struct group *grp;
 207         unsigned int i;
 208         char *topic;
 209         bool config_valid;
 210
 211         Use_Log = false;
 212
 213         if (! Read_Config(true))
 214                 return 1;
 215
 216         config_valid = Validate_Config(true, false);
 217
 218         /* If stdin and stdout ("you can read our nice message and we can
 219          * read in your keypress") are valid tty's, wait for a key: */
 220         if( isatty( fileno( stdin )) && isatty( fileno( stdout ))) {
 221                 puts( "OK, press enter to see a dump of your service configuration ..." );
 222                 getchar( );
 223         } else {
 224                 puts( "Ok, dump of your server configuration follows:\n" );
 225         }
 226
 227         puts( "[GLOBAL]" );
 228         printf( "  Name = %s\n", Conf_ServerName );
 229         printf( "  Info = %s\n", Conf_ServerInfo );
 230         printf( "  Password = %s\n", Conf_ServerPwd );
 231         printf( "  AdminInfo1 = %s\n", Conf_ServerAdmin1 );
 232         printf( "  AdminInfo2 = %s\n", Conf_ServerAdmin2 );
 233         printf( "  AdminEMail = %s\n", Conf_ServerAdminMail );
 234         printf( "  MotdFile = %s\n", Conf_MotdFile );
 235         printf( "  MotdPhrase = %s\n", Conf_MotdPhrase );
 236         printf( "  ChrootDir = %s\n", Conf_Chroot );
 237         printf( "  PidFile = %s\n", Conf_PidFile);
 238         printf("  Listen = %s\n", Conf_ListenAddress);
 239         fputs("  Ports = ", stdout);
 240
 241         ports_puts(&Conf_ListenPorts);
 242 #ifdef SSL_SUPPORT
 243         fputs("  SSLPorts = ", stdout);
 244         ports_puts(&Conf_SSLOptions.ListenPorts);
 245         ConfSSL_Puts();
 246 #endif
 247
 248         pwd = getpwuid( Conf_UID );
 249         if( pwd ) printf( "  ServerUID = %s\n", pwd->pw_name );
 250         else printf( "  ServerUID = %ld\n", (long)Conf_UID );
 251         grp = getgrgid( Conf_GID );
 252         if( grp ) printf( "  ServerGID = %s\n", grp->gr_name );
 253         else printf( "  ServerGID = %ld\n", (long)Conf_GID );
 254         printf( "  PingTimeout = %d\n", Conf_PingTimeout );
 255         printf( "  PongTimeout = %d\n", Conf_PongTimeout );
 256         printf( "  ConnectRetry = %d\n", Conf_ConnectRetry );
 257         printf( "  OperCanUseMode = %s\n", yesno_to_str(Conf_OperCanMode));
 258         printf( "  OperServerMode = %s\n", yesno_to_str(Conf_OperServerMode));
 259         printf( "  PredefChannelsOnly = %s\n", yesno_to_str(Conf_PredefChannelsOnly));
 260         printf( "  NoDNS = %s\n", yesno_to_str(Conf_NoDNS));
 261
 262 #ifdef WANT_IPV6
 263         printf("  ConnectIPv4 = %s\n", yesno_to_str(Conf_ConnectIPv6));
 264         printf("  ConnectIPv6 = %s\n", yesno_to_str(Conf_ConnectIPv4));
 265 #endif
 266         printf( "  MaxConnections = %ld\n", Conf_MaxConnections);
 267         printf( "  MaxConnectionsIP = %d\n", Conf_MaxConnectionsIP);
 268         printf( "  MaxJoins = %d\n", Conf_MaxJoins>0 ? Conf_MaxJoins : -1);
 269         printf( "  MaxNickLength = %u\n\n", Conf_MaxNickLength - 1);
 270
 271         for( i = 0; i < Conf_Oper_Count; i++ ) {
 272                 if( ! Conf_Oper[i].name[0] ) continue;
 273
 274                 /* Valid "Operator" section */
 275                 puts( "[OPERATOR]" );
 276                 printf( "  Name = %s\n", Conf_Oper[i].name );
 277                 printf( "  Password = %s\n", Conf_Oper[i].pwd );
 278                 if ( Conf_Oper[i].mask ) printf( "  Mask = %s\n", Conf_Oper[i].mask );
 279                 puts( "" );
 280         }
 281
 282         for( i = 0; i < MAX_SERVERS; i++ ) {
 283                 if( ! Conf_Server[i].name[0] ) continue;
 284
 285                 /* Valid "Server" section */
 286                 puts( "[SERVER]" );
 287                 printf( "  Name = %s\n", Conf_Server[i].name );
 288                 printf( "  Host = %s\n", Conf_Server[i].host );
 289                 printf( "  Port = %u\n", (unsigned int)Conf_Server[i].port );
 290 #ifdef SSL_SUPPORT
 291                 printf( "  SSLConnect = %s\n", Conf_Server[i].SSLConnect?"yes":"no");
 292 #endif
 293                 printf( "  MyPassword = %s\n", Conf_Server[i].pwd_in );
 294                 printf( "  PeerPassword = %s\n", Conf_Server[i].pwd_out );
 295                 printf( "  Group = %d\n", Conf_Server[i].group );
 296                 printf( "  Passive = %s\n\n", Conf_Server[i].flags & CONF_SFLAG_DISABLED ? "yes" : "no");
 297         }
 298
 299         for( i = 0; i < Conf_Channel_Count; i++ ) {
 300                 if( ! Conf_Channel[i].name[0] ) continue;
 301
 302                 /* Valid "Channel" section */
 303                 puts( "[CHANNEL]" );
 304                 printf( "  Name = %s\n", Conf_Channel[i].name );
 305                 printf( "  Modes = %s\n", Conf_Channel[i].modes );
 306                 printf( "  Key = %s\n", Conf_Channel[i].key );
 307                 printf( "  MaxUsers = %lu\n", Conf_Channel[i].maxusers );
 308
 309                 topic = (char*)array_start(&Conf_Channel[i].topic);
 310                 printf( "  Topic = %s\n\n", topic ? topic : "");
 311         }
 312
 313         return (config_valid ? 0 : 1);
 314 } /* Conf_Test */
 315
 316
 317 GLOBAL void
 318 Conf_UnsetServer( CONN_ID Idx )
 319 {
 320         /* Set next time for next connection attempt, if this is a server
 321          * link that is (still) configured here. If the server is set as
 322          * "once", delete it from our configuration.
 323          * Non-Server-Connections will be silently ignored. */
 324
 325         int i;
 326         time_t t;
 327
 328         /* Check all our configured servers */
 329         for( i = 0; i < MAX_SERVERS; i++ ) {
 330                 if( Conf_Server[i].conn_id != Idx ) continue;
 331
 332                 /* Gotcha! Mark server configuration as "unused": */
 333                 Conf_Server[i].conn_id = NONE;
 334
 335                 if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) {
 336                         /* Delete configuration here */
 337                         Init_Server_Struct( &Conf_Server[i] );
 338                 } else {
 339                         /* Set time for next connect attempt */
 340                         t = time(NULL);
 341                         if (Conf_Server[i].lasttry < t - Conf_ConnectRetry) {
 342                                 /* The connection has been "long", so we don't
 343                                  * require the next attempt to be delayed. */
 344                                 Conf_Server[i].lasttry =
 345                                         t - Conf_ConnectRetry + RECONNECT_DELAY;
 346                         } else
 347                                 Conf_Server[i].lasttry = t;
 348                 }
 349         }
 350 } /* Conf_UnsetServer */
 351
 352
 353 GLOBAL void
 354 Conf_SetServer( int ConfServer, CONN_ID Idx )
 355 {
 356         /* Set connection for specified configured server */
 357
 358         assert( ConfServer > NONE );
 359         assert( Idx > NONE );
 360
 361         Conf_Server[ConfServer].conn_id = Idx;
 362 } /* Conf_SetServer */
 363
 364
 365 GLOBAL int
 366 Conf_GetServer( CONN_ID Idx )
 367 {
 368         /* Get index of server in configuration structure */
 369
 370         int i = 0;
 371
 372         assert( Idx > NONE );
 373
 374         for( i = 0; i < MAX_SERVERS; i++ ) {
 375                 if( Conf_Server[i].conn_id == Idx ) return i;
 376         }
 377         return NONE;
 378 } /* Conf_GetServer */
 379
 380
 381 GLOBAL bool
 382 Conf_EnableServer( char *Name, UINT16 Port )
 383 {
 384         /* Enable specified server and adjust port */
 385
 386         int i;
 387
 388         assert( Name != NULL );
 389
 390         for( i = 0; i < MAX_SERVERS; i++ ) {
 391                 if( strcasecmp( Conf_Server[i].name, Name ) == 0 ) {
 392                         /* Gotcha! Set port and enable server: */
 393                         Conf_Server[i].port = Port;
 394                         Conf_Server[i].flags &= ~CONF_SFLAG_DISABLED;
 395                         return true;
 396                 }
 397         }
 398         return false;
 399 } /* Conf_EnableServer */
 400
 401
 402 GLOBAL bool
 403 Conf_EnablePassiveServer(const char *Name)
 404 {
 405         /* Enable specified server */
 406         int i;
 407
 408         assert( Name != NULL );
 409         for (i = 0; i < MAX_SERVERS; i++) {
 410                 if ((strcasecmp( Conf_Server[i].name, Name ) == 0) && (Conf_Server[i].port > 0)) {
 411                         /* BINGO! Enable server */
 412                         Conf_Server[i].flags &= ~CONF_SFLAG_DISABLED;
 413                         return true;
 414                 }
 415         }
 416         return false;
 417 } /* Conf_EnablePassiveServer */
 418
 419
 420 GLOBAL bool
 421 Conf_DisableServer( char *Name )
 422 {
 423         /* Enable specified server and adjust port */
 424
 425         int i;
 426
 427         assert( Name != NULL );
 428
 429         for( i = 0; i < MAX_SERVERS; i++ ) {
 430                 if( strcasecmp( Conf_Server[i].name, Name ) == 0 ) {
 431                         /* Gotcha! Disable and disconnect server: */
 432                         Conf_Server[i].flags |= CONF_SFLAG_DISABLED;
 433                         if( Conf_Server[i].conn_id > NONE ) Conn_Close( Conf_Server[i].conn_id, NULL, "Server link terminated on operator request", true);
 434                         return true;
 435                 }
 436         }
 437         return false;
 438 } /* Conf_DisableServer */
 439
 440
 441 GLOBAL bool
 442 Conf_AddServer( char *Name, UINT16 Port, char *Host, char *MyPwd, char *PeerPwd )
 443 {
 444         /* Add new server to configuration */
 445
 446         int i;
 447
 448         assert( Name != NULL );
 449         assert( Host != NULL );
 450         assert( MyPwd != NULL );
 451         assert( PeerPwd != NULL );
 452
 453         /* Search unused item in server configuration structure */
 454         for( i = 0; i < MAX_SERVERS; i++ ) {
 455                 /* Is this item used? */
 456                 if( ! Conf_Server[i].name[0] ) break;
 457         }
 458         if( i >= MAX_SERVERS ) return false;
 459
 460         Init_Server_Struct( &Conf_Server[i] );
 461         strlcpy( Conf_Server[i].name, Name, sizeof( Conf_Server[i].name ));
 462         strlcpy( Conf_Server[i].host, Host, sizeof( Conf_Server[i].host ));
 463         strlcpy( Conf_Server[i].pwd_out, MyPwd, sizeof( Conf_Server[i].pwd_out ));
 464         strlcpy( Conf_Server[i].pwd_in, PeerPwd, sizeof( Conf_Server[i].pwd_in ));
 465         Conf_Server[i].port = Port;
 466         Conf_Server[i].flags = CONF_SFLAG_ONCE;
 467
 468         return true;
 469 } /* Conf_AddServer */
 470
 471
 472 static void
 473 Set_Defaults( bool InitServers )
 474 {
 475         /* Initialize configuration variables with default values. */
 476
 477         int i;
 478
 479         strcpy( Conf_ServerName, "" );
 480         snprintf( Conf_ServerInfo, sizeof Conf_ServerInfo, "%s %s", PACKAGE_NAME, PACKAGE_VERSION );
 481         strcpy( Conf_ServerPwd, "" );
 482
 483         strcpy( Conf_ServerAdmin1, "" );
 484         strcpy( Conf_ServerAdmin2, "" );
 485         strcpy( Conf_ServerAdminMail, "" );
 486
 487         strlcpy( Conf_MotdFile, SYSCONFDIR, sizeof( Conf_MotdFile ));
 488         strlcat( Conf_MotdFile, MOTD_FILE, sizeof( Conf_MotdFile ));
 489
 490         strlcpy( Conf_MotdPhrase, MOTD_PHRASE, sizeof( Conf_MotdPhrase ));
 491
 492         strlcpy( Conf_Chroot, CHROOT_DIR, sizeof( Conf_Chroot ));
 493
 494         strlcpy( Conf_PidFile, PID_FILE, sizeof( Conf_PidFile ));
 495
 496         free(Conf_ListenAddress);
 497         Conf_ListenAddress = NULL;
 498         Conf_UID = Conf_GID = 0;
 499
 500         Conf_PingTimeout = 120;
 501         Conf_PongTimeout = 20;
 502
 503         Conf_ConnectRetry = 60;
 504
 505         Conf_Oper_Count = 0;
 506         Conf_Channel_Count = 0;
 507
 508         Conf_OperCanMode = false;
 509         Conf_NoDNS = false;
 510         Conf_PredefChannelsOnly = false;
 511         Conf_OperServerMode = false;
 512
 513         Conf_ConnectIPv4 = true;
 514         Conf_ConnectIPv6 = true;
 515
 516         Conf_MaxConnections = 0;
 517         Conf_MaxConnectionsIP = 5;
 518         Conf_MaxJoins = 10;
 519         Conf_MaxNickLength = CLIENT_NICK_LEN_DEFAULT;
 520
 521         /* Initialize server configuration structures */
 522         if( InitServers ) for( i = 0; i < MAX_SERVERS; Init_Server_Struct( &Conf_Server[i++] ));
 523 } /* Set_Defaults */
 524
 525
 526 static bool
 527 Read_Config( bool ngircd_starting )
 528 {
 529         /* Read configuration file. */
 530
 531         char section[LINE_LEN], str[LINE_LEN], *var, *arg, *ptr;
 532         const UINT16 defaultport = 6667;
 533         int line, i, n;
 534         FILE *fd;
 535
 536         /* Open configuration file */
 537         fd = fopen( NGIRCd_ConfFile, "r" );
 538         if( ! fd ) {
 539                 /* No configuration file found! */
 540                 Config_Error( LOG_ALERT, "Can't read configuration \"%s\": %s",
 541                                         NGIRCd_ConfFile, strerror( errno ));
 542                 if (!ngircd_starting)
 543                         return false;
 544                 Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
 545                 exit( 1 );
 546         }
 547
 548         Set_Defaults( ngircd_starting );
 549
 550         Config_Error( LOG_INFO, "Reading configuration from \"%s\" ...", NGIRCd_ConfFile );
 551
 552         /* Clean up server configuration structure: mark all already
 553          * configured servers as "once" so that they are deleted
 554          * after the next disconnect and delete all unused servers.
 555          * And delete all servers which are "duplicates" of servers
 556          * that are already marked as "once" (such servers have been
 557          * created by the last rehash but are now useless). */
 558         for( i = 0; i < MAX_SERVERS; i++ ) {
 559                 if( Conf_Server[i].conn_id == NONE ) Init_Server_Struct( &Conf_Server[i] );
 560                 else {
 561                         /* This structure is in use ... */
 562                         if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) {
 563                                 /* Check for duplicates */
 564                                 for( n = 0; n < MAX_SERVERS; n++ ) {
 565                                         if( n == i ) continue;
 566
 567                                         if( Conf_Server[i].conn_id == Conf_Server[n].conn_id ) {
 568                                                 Init_Server_Struct( &Conf_Server[n] );
 569 #ifdef DEBUG
 570                                                 Log(LOG_DEBUG,"Deleted unused duplicate server %d (kept %d).",
 571                                                                                                 n, i );
 572 #endif
 573                                         }
 574                                 }
 575                         } else {
 576                                 /* Mark server as "once" */
 577                                 Conf_Server[i].flags |= CONF_SFLAG_ONCE;
 578                                 Log( LOG_DEBUG, "Marked server %d as \"once\"", i );
 579                         }
 580                 }
 581         }
 582
 583         /* Initialize variables */
 584         line = 0;
 585         strcpy( section, "" );
 586         Init_Server_Struct( &New_Server );
 587         New_Server_Idx = NONE;
 588 #ifdef SSL_SUPPORT
 589         ConfSSL_Init();
 590 #endif
 591         /* Read configuration file */
 592         while( true ) {
 593                 if( ! fgets( str, LINE_LEN, fd )) break;
 594                 ngt_TrimStr( str );
 595                 line++;
 596
 597                 /* Skip comments and empty lines */
 598                 if( str[0] == ';' || str[0] == '#' || str[0] == '\0' ) continue;
 599
 600                 /* Is this the beginning of a new section? */
 601                 if(( str[0] == '[' ) && ( str[strlen( str ) - 1] == ']' )) {
 602                         strlcpy( section, str, sizeof( section ));
 603                         if( strcasecmp( section, "[GLOBAL]" ) == 0 )
 604                                 continue;
 605
 606                         if( strcasecmp( section, "[OPERATOR]" ) == 0 ) {
 607                                 if( Conf_Oper_Count + 1 > MAX_OPERATORS )
 608                                         Config_Error( LOG_ERR, "Too many operators configured.");
 609                                 else {
 610                                         /* Initialize new operator structure */
 611                                         Conf_Oper[Conf_Oper_Count].name[0] = '\0';
 612                                         Conf_Oper[Conf_Oper_Count].pwd[0] = '\0';
 613                                         if (Conf_Oper[Conf_Oper_Count].mask) {
 614                                                 free(Conf_Oper[Conf_Oper_Count].mask );
 615                                                 Conf_Oper[Conf_Oper_Count].mask = NULL;
 616                                         }
 617                                         Conf_Oper_Count++;
 618                                 }
 619                                 continue;
 620                         }
 621                         if( strcasecmp( section, "[SERVER]" ) == 0 ) {
 622                                 /* Check if there is already a server to add */
 623                                 if( New_Server.name[0] ) {
 624                                         /* Copy data to "real" server structure */
 625                                         assert( New_Server_Idx > NONE );
 626                                         Conf_Server[New_Server_Idx] = New_Server;
 627                                 }
 628
 629                                 /* Re-init structure for new server */
 630                                 Init_Server_Struct( &New_Server );
 631
 632                                 /* Search unused item in server configuration structure */
 633                                 for( i = 0; i < MAX_SERVERS; i++ ) {
 634                                         /* Is this item used? */
 635                                         if( ! Conf_Server[i].name[0] ) break;
 636                                 }
 637                                 if( i >= MAX_SERVERS ) {
 638                                         /* Oops, no free item found! */
 639                                         Config_Error( LOG_ERR, "Too many servers configured." );
 640                                         New_Server_Idx = NONE;
 641                                 }
 642                                 else New_Server_Idx = i;
 643                                 continue;
 644                         }
 645                         if( strcasecmp( section, "[CHANNEL]" ) == 0 ) {
 646                                 if( Conf_Channel_Count + 1 > MAX_DEFCHANNELS ) {
 647                                         Config_Error( LOG_ERR, "Too many pre-defined channels configured." );
 648                                 } else {
 649                                         /* Initialize new channel structure */
 650                                         strcpy( Conf_Channel[Conf_Channel_Count].name, "" );
 651                                         strcpy( Conf_Channel[Conf_Channel_Count].modes, "" );
 652                                         strcpy( Conf_Channel[Conf_Channel_Count].key, "" );
 653                                         Conf_Channel[Conf_Channel_Count].maxusers = 0;
 654                                         array_free(&Conf_Channel[Conf_Channel_Count].topic);
 655                                         Conf_Channel_Count++;
 656                                 }
 657                                 continue;
 658                         }
 659                         Config_Error( LOG_ERR, "%s, line %d: Unknown section \"%s\"!", NGIRCd_ConfFile, line, section );
 660                         section[0] = 0x1;
 661                 }
 662                 if( section[0] == 0x1 ) continue;
 663
 664                 /* Split line into variable name and parameters */
 665                 ptr = strchr( str, '=' );
 666                 if( ! ptr ) {
 667                         Config_Error( LOG_ERR, "%s, line %d: Syntax error!", NGIRCd_ConfFile, line );
 668                         continue;
 669                 }
 670                 *ptr = '\0';
 671                 var = str; ngt_TrimStr( var );
 672                 arg = ptr + 1; ngt_TrimStr( arg );
 673
 674                 if( strcasecmp( section, "[GLOBAL]" ) == 0 ) Handle_GLOBAL( line, var, arg );
 675                 else if( strcasecmp( section, "[OPERATOR]" ) == 0 ) Handle_OPERATOR( line, var, arg );
 676                 else if( strcasecmp( section, "[SERVER]" ) == 0 ) Handle_SERVER( line, var, arg );
 677                 else if( strcasecmp( section, "[CHANNEL]" ) == 0 ) Handle_CHANNEL( line, var, arg );
 678                 else Config_Error( LOG_ERR, "%s, line %d: Variable \"%s\" outside section!", NGIRCd_ConfFile, line, var );
 679         }
 680
 681         /* Close configuration file */
 682         fclose( fd );
 683
 684         /* Check if there is still a server to add */
 685         if( New_Server.name[0] ) {
 686                 /* Copy data to "real" server structure */
 687                 assert( New_Server_Idx > NONE );
 688                 Conf_Server[New_Server_Idx] = New_Server;
 689         }
 690
 691         if (0 == array_length(&Conf_ListenPorts, sizeof(UINT16))) {
 692                 if (!array_copyb(&Conf_ListenPorts, (char*) &defaultport, sizeof defaultport)) {
 693                         Config_Error( LOG_ALERT, "Could not add default listening Port %u: %s",
 694                                                         (unsigned int) defaultport, strerror(errno));
 695                         exit( 1 );
 696                 }
 697         }
 698
 699         if (!Conf_ListenAddress)
 700                 Conf_ListenAddress = strdup_warn(DEFAULT_LISTEN_ADDRSTR);
 701
 702         if (!Conf_ListenAddress) {
 703                 Config_Error(LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME);
 704                 exit(1);
 705         }
 706         return true;
 707 } /* Read_Config */
 708
 709
 710 static bool
 711 Check_ArgIsTrue( const char *Arg )
 712 {
 713         if( strcasecmp( Arg, "yes" ) == 0 ) return true;
 714         if( strcasecmp( Arg, "true" ) == 0 ) return true;
 715         if( atoi( Arg ) != 0 ) return true;
 716
 717         return false;
 718 } /* Check_ArgIsTrue */
 719
 720
 721 static unsigned int Handle_MaxNickLength(int Line, const char *Arg)
 722 {
 723         unsigned new;
 724
 725         new = (unsigned) atoi(Arg) + 1;
 726         if (new > CLIENT_NICK_LEN) {
 727                 Config_Error(LOG_WARNING,
 728                              "%s, line %d: Value of \"MaxNickLength\" exceeds %u!",
 729                              NGIRCd_ConfFile, Line, CLIENT_NICK_LEN - 1);
 730                 return CLIENT_NICK_LEN;
 731         }
 732         if (new < 2) {
 733                 Config_Error(LOG_WARNING,
 734                              "%s, line %d: Value of \"MaxNickLength\" must be at least 1!",
 735                              NGIRCd_ConfFile, Line);
 736                 return 2;
 737         }
 738         return new;
 739 } /* Handle_MaxNickLength */
 740
 741
 742 static void
 743 Handle_GLOBAL( int Line, char *Var, char *Arg )
 744 {
 745         struct passwd *pwd;
 746         struct group *grp;
 747         size_t len;
 748
 749         assert( Line > 0 );
 750         assert( Var != NULL );
 751         assert( Arg != NULL );
 752
 753         if( strcasecmp( Var, "Name" ) == 0 ) {
 754                 /* Server name */
 755                 len = strlcpy( Conf_ServerName, Arg, sizeof( Conf_ServerName ));
 756                 if (len >= sizeof( Conf_ServerName ))
 757                         Config_Error_TooLong( Line, Var );
 758                 return;
 759         }
 760         if( strcasecmp( Var, "Info" ) == 0 ) {
 761                 /* Info text of server */
 762                 len = strlcpy( Conf_ServerInfo, Arg, sizeof( Conf_ServerInfo ));
 763                 if (len >= sizeof( Conf_ServerInfo ))
 764                         Config_Error_TooLong ( Line, Var );
 765                 return;
 766         }
 767         if( strcasecmp( Var, "Password" ) == 0 ) {
 768                 /* Global server password */
 769                 len = strlcpy( Conf_ServerPwd, Arg, sizeof( Conf_ServerPwd ));
 770                 if (len >= sizeof( Conf_ServerPwd ))
 771                         Config_Error_TooLong( Line, Var );
 772                 return;
 773         }
 774         if( strcasecmp( Var, "AdminInfo1" ) == 0 ) {
 775                 /* Administrative info #1 */
 776                 len = strlcpy( Conf_ServerAdmin1, Arg, sizeof( Conf_ServerAdmin1 ));
 777                 if (len >= sizeof( Conf_ServerAdmin1 ))
 778                         Config_Error_TooLong ( Line, Var );
 779                 return;
 780         }
 781         if( strcasecmp( Var, "AdminInfo2" ) == 0 ) {
 782                 /* Administrative info #2 */
 783                 len = strlcpy( Conf_ServerAdmin2, Arg, sizeof( Conf_ServerAdmin2 ));
 784                 if (len >= sizeof( Conf_ServerAdmin2 ))
 785                         Config_Error_TooLong ( Line, Var );
 786                 return;
 787         }
 788         if( strcasecmp( Var, "AdminEMail" ) == 0 ) {
 789                 /* Administrative email contact */
 790                 len = strlcpy( Conf_ServerAdminMail, Arg, sizeof( Conf_ServerAdminMail ));
 791                 if (len >= sizeof( Conf_ServerAdminMail ))
 792                         Config_Error_TooLong( Line, Var );
 793                 return;
 794         }
 795
 796         if( strcasecmp( Var, "Ports" ) == 0 ) {
 797                 ports_parse(&Conf_ListenPorts, Line, Arg);
 798                 return;
 799         }
 800         if( strcasecmp( Var, "MotdFile" ) == 0 ) {
 801                 /* "Message of the day" (MOTD) file */
 802                 len = strlcpy( Conf_MotdFile, Arg, sizeof( Conf_MotdFile ));
 803                 if (len >= sizeof( Conf_MotdFile ))
 804                         Config_Error_TooLong( Line, Var );
 805                 return;
 806         }
 807         if( strcasecmp( Var, "MotdPhrase" ) == 0 ) {
 808                 /* "Message of the day" phrase (instead of file) */
 809                 len = strlcpy( Conf_MotdPhrase, Arg, sizeof( Conf_MotdPhrase ));
 810                 if (len >= sizeof( Conf_MotdPhrase ))
 811                         Config_Error_TooLong( Line, Var );
 812                 return;
 813         }
 814         if( strcasecmp( Var, "ChrootDir" ) == 0 ) {
 815                 /* directory for chroot() */
 816                 len = strlcpy( Conf_Chroot, Arg, sizeof( Conf_Chroot ));
 817                 if (len >= sizeof( Conf_Chroot ))
 818                         Config_Error_TooLong( Line, Var );
 819                 return;
 820         }
 821         if ( strcasecmp( Var, "PidFile" ) == 0 ) {
 822                 /* name of pidfile */
 823                 len = strlcpy( Conf_PidFile, Arg, sizeof( Conf_PidFile ));
 824                 if (len >= sizeof( Conf_PidFile ))
 825                         Config_Error_TooLong( Line, Var );
 826                 return;
 827         }
 828         if( strcasecmp( Var, "ServerUID" ) == 0 ) {
 829                 /* UID the daemon should switch to */
 830                 pwd = getpwnam( Arg );
 831                 if( pwd ) Conf_UID = pwd->pw_uid;
 832                 else {
 833 #ifdef HAVE_ISDIGIT
 834                         if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
 835                         else
 836 #endif
 837                         Conf_UID = (unsigned int)atoi( Arg );
 838                 }
 839                 return;
 840         }
 841         if( strcasecmp( Var, "ServerGID" ) == 0 ) {
 842                 /* GID the daemon should use */
 843                 grp = getgrnam( Arg );
 844                 if( grp ) Conf_GID = grp->gr_gid;
 845                 else {
 846 #ifdef HAVE_ISDIGIT
 847                         if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
 848                         else
 849 #endif
 850                         Conf_GID = (unsigned int)atoi( Arg );
 851                 }
 852                 return;
 853         }
 854         if( strcasecmp( Var, "PingTimeout" ) == 0 ) {
 855                 /* PING timeout */
 856                 Conf_PingTimeout = atoi( Arg );
 857                 if( Conf_PingTimeout < 5 ) {
 858                         Config_Error( LOG_WARNING, "%s, line %d: Value of \"PingTimeout\" too low!",
 859                                                                         NGIRCd_ConfFile, Line );
 860                         Conf_PingTimeout = 5;
 861                 }
 862                 return;
 863         }
 864         if( strcasecmp( Var, "PongTimeout" ) == 0 ) {
 865                 /* PONG timeout */
 866                 Conf_PongTimeout = atoi( Arg );
 867                 if( Conf_PongTimeout < 5 ) {
 868                         Config_Error( LOG_WARNING, "%s, line %d: Value of \"PongTimeout\" too low!",
 869                                                                         NGIRCd_ConfFile, Line );
 870                         Conf_PongTimeout = 5;
 871                 }
 872                 return;
 873         }
 874         if( strcasecmp( Var, "ConnectRetry" ) == 0 ) {
 875                 /* Seconds between connection attempts to other servers */
 876                 Conf_ConnectRetry = atoi( Arg );
 877                 if( Conf_ConnectRetry < 5 ) {
 878                         Config_Error( LOG_WARNING, "%s, line %d: Value of \"ConnectRetry\" too low!",
 879                                                                         NGIRCd_ConfFile, Line );
 880                         Conf_ConnectRetry = 5;
 881                 }
 882                 return;
 883         }
 884         if( strcasecmp( Var, "PredefChannelsOnly" ) == 0 ) {
 885                 /* Should we only allow pre-defined-channels? (i.e. users cannot create their own channels) */
 886                 Conf_PredefChannelsOnly = Check_ArgIsTrue( Arg );
 887                 return;
 888         }
 889         if( strcasecmp( Var, "NoDNS" ) == 0 ) {
 890                 /* don't do reverse dns lookups when clients connect? */
 891                 Conf_NoDNS = Check_ArgIsTrue( Arg );
 892                 return;
 893         }
 894 #ifdef WANT_IPV6
 895         /* the default setting for all the WANT_IPV6 special options is 'true' */
 896         if( strcasecmp( Var, "ConnectIPv6" ) == 0 ) {
 897                 /* connect to other hosts using ipv6, if they have an AAAA record? */
 898                 Conf_ConnectIPv6 = Check_ArgIsTrue( Arg );
 899                 return;
 900         }
 901         if( strcasecmp( Var, "ConnectIPv4" ) == 0 ) {
 902                 /* connect to other hosts using ipv4.
 903                  * again, this can be used for ipv6-only setups */
 904                 Conf_ConnectIPv4 = Check_ArgIsTrue( Arg );
 905                 return;
 906         }
 907 #endif
 908         if( strcasecmp( Var, "OperCanUseMode" ) == 0 ) {
 909                 /* Are IRC operators allowed to use MODE in channels they aren't Op in? */
 910                 Conf_OperCanMode = Check_ArgIsTrue( Arg );
 911                 return;
 912         }
 913         if( strcasecmp( Var, "OperServerMode" ) == 0 ) {
 914                 /* Mask IRC operator as if coming from the server? (ircd-irc2 compat hack) */
 915                 Conf_OperServerMode = Check_ArgIsTrue( Arg );
 916                 return;
 917         }
 918         if( strcasecmp( Var, "MaxConnections" ) == 0 ) {
 919                 /* Maximum number of connections. 0 -> "no limit". */
 920 #ifdef HAVE_ISDIGIT
 921                 if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var);
 922                 else
 923 #endif
 924                 Conf_MaxConnections = atol( Arg );
 925                 return;
 926         }
 927         if( strcasecmp( Var, "MaxConnectionsIP" ) == 0 ) {
 928                 /* Maximum number of simultaneous connections from one IP. 0 -> "no limit" */
 929 #ifdef HAVE_ISDIGIT
 930                 if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
 931                 else
 932 #endif
 933                 Conf_MaxConnectionsIP = atoi( Arg );
 934                 return;
 935         }
 936         if( strcasecmp( Var, "MaxJoins" ) == 0 ) {
 937                 /* Maximum number of channels a user can join. 0 -> "no limit". */
 938 #ifdef HAVE_ISDIGIT
 939                 if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
 940                 else
 941 #endif
 942                 Conf_MaxJoins = atoi( Arg );
 943                 return;
 944         }
 945         if( strcasecmp( Var, "MaxNickLength" ) == 0 ) {
 946                 /* Maximum length of a nick name; must be same on all servers
 947                  * within the IRC network! */
 948                 Conf_MaxNickLength = Handle_MaxNickLength(Line, Arg);
 949                 return;
 950         }
 951
 952         if( strcasecmp( Var, "Listen" ) == 0 ) {
 953                 /* IP-Address to bind sockets */
 954                 if (Conf_ListenAddress) {
 955                         Config_Error(LOG_ERR, "Multiple Listen= options, ignoring: %s", Arg);
 956                         return;
 957                 }
 958                 Conf_ListenAddress = strdup_warn(Arg);
 959                 /*
 960                  * if allocation fails, we're in trouble:
 961                  * we cannot ignore the error -- otherwise ngircd
 962                  * would listen on all interfaces.
 963                  */
 964                 if (!Conf_ListenAddress) {
 965                         Config_Error(LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME);
 966                         exit(1);
 967                 }
 968                 return;
 969         }
 970
 971 #ifdef SSL_SUPPORT
 972         if( strcasecmp( Var, "SSLPorts" ) == 0 ) {
 973                 ports_parse(&Conf_SSLOptions.ListenPorts, Line, Arg);
 974                 return;
 975         }
 976
 977         if( strcasecmp( Var, "SSLKeyFile" ) == 0 ) {
 978                 assert(Conf_SSLOptions.KeyFile == NULL );
 979                 Conf_SSLOptions.KeyFile = strdup_warn(Arg);
 980                 return;
 981         }
 982         if( strcasecmp( Var, "SSLCertFile" ) == 0 ) {
 983                 assert(Conf_SSLOptions.CertFile == NULL );
 984                 Conf_SSLOptions.CertFile = strdup_warn(Arg);
 985                 return;
 986         }
 987
 988         if( strcasecmp( Var, "SSLKeyFilePassword" ) == 0 ) {
 989                 assert(array_bytes(&Conf_SSLOptions.KeyFilePassword) == 0);
 990                 if (!array_copys(&Conf_SSLOptions.KeyFilePassword, Arg))
 991                         Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Could not copy %s: %s!",
 992                                                                 NGIRCd_ConfFile, Line, Var, strerror(errno));
 993                 return;
 994         }
 995         if( strcasecmp( Var, "SSLDHFile" ) == 0 ) {
 996                 assert(Conf_SSLOptions.DHFile == NULL);
 997                 Conf_SSLOptions.DHFile = strdup_warn( Arg );
 998                 return;
 999         }
1000 #endif
1001         Config_Error(LOG_ERR, "%s, line %d (section \"Global\"): Unknown variable \"%s\"!",
1002                                                                 NGIRCd_ConfFile, Line, Var);
1003 } /* Handle_GLOBAL */
1004
1005
1006 static void
1007 Handle_OPERATOR( int Line, char *Var, char *Arg )
1008 {
1009         unsigned int opercount;
1010         size_t len;
1011         assert( Line > 0 );
1012         assert( Var != NULL );
1013         assert( Arg != NULL );
1014         assert( Conf_Oper_Count > 0 );
1015
1016         if ( Conf_Oper_Count == 0 )
1017                 return;
1018
1019         opercount = Conf_Oper_Count - 1;
1020
1021         if( strcasecmp( Var, "Name" ) == 0 ) {
1022                 /* Name of IRC operator */
1023                 len = strlcpy( Conf_Oper[opercount].name, Arg, sizeof( Conf_Oper[opercount].name ));
1024                 if (len >= sizeof( Conf_Oper[opercount].name ))
1025                                 Config_Error_TooLong( Line, Var );
1026                 return;
1027         }
1028         if( strcasecmp( Var, "Password" ) == 0 ) {
1029                 /* Password of IRC operator */
1030                 len = strlcpy( Conf_Oper[opercount].pwd, Arg, sizeof( Conf_Oper[opercount].pwd ));
1031                 if (len >= sizeof( Conf_Oper[opercount].pwd ))
1032                                 Config_Error_TooLong( Line, Var );
1033                 return;
1034         }
1035         if( strcasecmp( Var, "Mask" ) == 0 ) {
1036                 if (Conf_Oper[opercount].mask) return; /* Hostname already configured */
1037
1038                 Conf_Oper[opercount].mask = strdup_warn( Arg );
1039                 return;
1040         }
1041         Config_Error( LOG_ERR, "%s, line %d (section \"Operator\"): Unknown variable \"%s\"!",
1042                                                                 NGIRCd_ConfFile, Line, Var );
1043 } /* Handle_OPERATOR */
1044
1045
1046 static void
1047 Handle_SERVER( int Line, char *Var, char *Arg )
1048 {
1049         long port;
1050         size_t len;
1051
1052         assert( Line > 0 );
1053         assert( Var != NULL );
1054         assert( Arg != NULL );
1055
1056         /* Ignore server block if no space is left in server configuration structure */
1057         if( New_Server_Idx <= NONE ) return;
1058
1059         if( strcasecmp( Var, "Host" ) == 0 ) {
1060                 /* Hostname of the server */
1061                 len = strlcpy( New_Server.host, Arg, sizeof( New_Server.host ));
1062                 if (len >= sizeof( New_Server.host ))
1063                         Config_Error_TooLong ( Line, Var );
1064                 return;
1065         }
1066         if( strcasecmp( Var, "Name" ) == 0 ) {
1067                 /* Name of the server ("Nick"/"ID") */
1068                 len = strlcpy( New_Server.name, Arg, sizeof( New_Server.name ));
1069                 if (len >= sizeof( New_Server.name ))
1070                         Config_Error_TooLong( Line, Var );
1071                 return;
1072         }
1073         if (strcasecmp(Var, "Bind") == 0) {
1074                 if (ng_ipaddr_init(&New_Server.bind_addr, Arg, 0))
1075                         return;
1076
1077                 Config_Error(LOG_ERR, "%s, line %d (section \"Server\"): Can't parse IP address \"%s\"",
1078                                 NGIRCd_ConfFile, Line, Arg);
1079                 return;
1080         }
1081         if( strcasecmp( Var, "MyPassword" ) == 0 ) {
1082                 /* Password of this server which is sent to the peer */
1083                 if (*Arg == ':') {
1084                         Config_Error(LOG_ERR,
1085                                 "%s, line %d (section \"Server\"): MyPassword must not start with ':'!",
1086                                                                                 NGIRCd_ConfFile, Line);
1087                 }
1088                 len = strlcpy( New_Server.pwd_in, Arg, sizeof( New_Server.pwd_in ));
1089                 if (len >= sizeof( New_Server.pwd_in ))
1090                         Config_Error_TooLong( Line, Var );
1091                 return;
1092         }
1093         if( strcasecmp( Var, "PeerPassword" ) == 0 ) {
1094                 /* Passwort of the peer which must be received */
1095                 len = strlcpy( New_Server.pwd_out, Arg, sizeof( New_Server.pwd_out ));
1096                 if (len >= sizeof( New_Server.pwd_out ))
1097                         Config_Error_TooLong( Line, Var );
1098                 return;
1099         }
1100         if( strcasecmp( Var, "Port" ) == 0 ) {
1101                 /* Port to which this server should connect */
1102                 port = atol( Arg );
1103                 if( port > 0 && port < 0xFFFF )
1104                         New_Server.port = (UINT16)port;
1105                 else
1106                         Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Illegal port number %ld!",
1107                                                                                 NGIRCd_ConfFile, Line, port );
1108                 return;
1109         }
1110 #ifdef SSL_SUPPORT
1111         if( strcasecmp( Var, "SSLConnect" ) == 0 ) {
1112                 New_Server.SSLConnect = Check_ArgIsTrue(Arg);
1113                 return;
1114         }
1115 #endif
1116         if( strcasecmp( Var, "Group" ) == 0 ) {
1117                 /* Server group */
1118 #ifdef HAVE_ISDIGIT
1119                 if( ! isdigit( (int)*Arg ))
1120                         Config_Error_NaN( Line, Var );
1121                 else
1122 #endif
1123                 New_Server.group = atoi( Arg );
1124                 return;
1125         }
1126         if( strcasecmp( Var, "Passive" ) == 0 ) {
1127                 if (Check_ArgIsTrue(Arg))
1128                         New_Server.flags |= CONF_SFLAG_DISABLED;
1129                 return;
1130         }
1131
1132         Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Unknown variable \"%s\"!",
1133                                                                 NGIRCd_ConfFile, Line, Var );
1134 } /* Handle_SERVER */
1135
1136
1137 static bool
1138 Handle_Channelname(size_t chancount, const char *name)
1139 {
1140         size_t size = sizeof( Conf_Channel[chancount].name );
1141         char *dest = Conf_Channel[chancount].name;
1142
1143         if (*name && *name != '#') {
1144                 *dest = '#';
1145                 --size;
1146                 ++dest;
1147         }
1148         return size > strlcpy(dest, name, size);
1149 }
1150
1151
1152 static void
1153 Handle_CHANNEL( int Line, char *Var, char *Arg )
1154 {
1155         size_t len;
1156         size_t chancount = 0;
1157
1158         assert( Line > 0 );
1159         assert( Var != NULL );
1160         assert( Arg != NULL );
1161         if (Conf_Channel_Count > 0)
1162                 chancount = Conf_Channel_Count - 1;
1163
1164         if( strcasecmp( Var, "Name" ) == 0 ) {
1165                 if (!Handle_Channelname(chancount, Arg))
1166                         Config_Error_TooLong( Line, Var );
1167                 return;
1168         }
1169         if( strcasecmp( Var, "Modes" ) == 0 ) {
1170                 /* Initial modes */
1171                 len = strlcpy( Conf_Channel[chancount].modes, Arg, sizeof( Conf_Channel[chancount].modes ));
1172                 if (len >= sizeof( Conf_Channel[chancount].modes ))
1173                         Config_Error_TooLong( Line, Var );
1174                 return;
1175         }
1176         if( strcasecmp( Var, "Topic" ) == 0 ) {
1177                 /* Initial topic */
1178                 if (!array_copys( &Conf_Channel[chancount].topic, Arg))
1179                         Config_Error_TooLong( Line, Var );
1180                 return;
1181         }
1182
1183         if( strcasecmp( Var, "Key" ) == 0 ) {
1184                 /* Initial Channel Key (mode k) */
1185                 len = strlcpy(Conf_Channel[chancount].key, Arg, sizeof(Conf_Channel[chancount].key));
1186                 if (len >= sizeof( Conf_Channel[chancount].key ))
1187                         Config_Error_TooLong(Line, Var);
1188                 return;
1189         }
1190
1191         if( strcasecmp( Var, "MaxUsers" ) == 0 ) {
1192                 /* maximum user limit, mode l */
1193                 Conf_Channel[chancount].maxusers = (unsigned long) atol(Arg);
1194                 if (Conf_Channel[chancount].maxusers == 0)
1195                         Config_Error_NaN(Line, Var);
1196                 return;
1197         }
1198
1199         Config_Error( LOG_ERR, "%s, line %d (section \"Channel\"): Unknown variable \"%s\"!",
1200                                                                 NGIRCd_ConfFile, Line, Var );
1201 } /* Handle_CHANNEL */
1202
1203
1204 static bool
1205 Validate_Config(bool Configtest, bool Rehash)
1206 {
1207         /* Validate configuration settings. */
1208
1209 #ifdef DEBUG
1210         int i, servers, servers_once;
1211 #endif
1212         bool config_valid = true;
1213         char *ptr;
1214
1215         /* Validate configured server name, see RFC 2812 section 2.3.1 */
1216         ptr = Conf_ServerName;
1217         do {
1218                 if (*ptr >= 'a' && *ptr <= 'z') continue;
1219                 if (*ptr >= 'A' && *ptr <= 'Z') continue;
1220                 if (*ptr >= '0' && *ptr <= '9') continue;
1221                 if (ptr > Conf_ServerName) {
1222                         if (*ptr == '.' || *ptr == '-')
1223                                 continue;
1224                 }
1225                 Conf_ServerName[0] = '\0';
1226                 break;
1227         } while (*(++ptr));
1228
1229         if (!Conf_ServerName[0]) {
1230                 /* No server name configured! */
1231                 config_valid = false;
1232                 Config_Error(LOG_ALERT,
1233                              "No (valid) server name configured in \"%s\" (section 'Global': 'Name')!",
1234                              NGIRCd_ConfFile);
1235                 if (!Configtest && !Rehash) {
1236                         Config_Error(LOG_ALERT,
1237                                      "%s exiting due to fatal errors!",
1238                                      PACKAGE_NAME);
1239                         exit(1);
1240                 }
1241         }
1242
1243         if (Conf_ServerName[0] && !strchr(Conf_ServerName, '.')) {
1244                 /* No dot in server name! */
1245                 config_valid = false;
1246                 Config_Error(LOG_ALERT,
1247                              "Invalid server name configured in \"%s\" (section 'Global': 'Name'): Dot missing!",
1248                              NGIRCd_ConfFile);
1249                 if (!Configtest) {
1250                         Config_Error(LOG_ALERT,
1251                                      "%s exiting due to fatal errors!",
1252                                      PACKAGE_NAME);
1253                         exit(1);
1254                 }
1255         }
1256
1257 #ifdef STRICT_RFC
1258         if (!Conf_ServerAdminMail[0]) {
1259                 /* No administrative contact configured! */
1260                 config_valid = false;
1261                 Config_Error(LOG_ALERT,
1262                              "No administrator email address configured in \"%s\" ('AdminEMail')!",
1263                              NGIRCd_ConfFile);
1264                 if (!Configtest) {
1265                         Config_Error(LOG_ALERT,
1266                                      "%s exiting due to fatal errors!",
1267                                      PACKAGE_NAME);
1268                         exit(1);
1269                 }
1270         }
1271 #endif
1272
1273         if (!Conf_ServerAdmin1[0] && !Conf_ServerAdmin2[0]
1274             && !Conf_ServerAdminMail[0]) {
1275                 /* No administrative information configured! */
1276                 Config_Error(LOG_WARNING,
1277                              "No administrative information configured but required by RFC!");
1278         }
1279
1280 #ifdef DEBUG
1281         servers = servers_once = 0;
1282         for (i = 0; i < MAX_SERVERS; i++) {
1283                 if (Conf_Server[i].name[0]) {
1284                         servers++;
1285                         if (Conf_Server[i].flags & CONF_SFLAG_ONCE)
1286                                 servers_once++;
1287                 }
1288         }
1289         Log(LOG_DEBUG,
1290             "Configuration: Operators=%d, Servers=%d[%d], Channels=%d",
1291             Conf_Oper_Count, servers, servers_once, Conf_Channel_Count);
1292 #endif
1293
1294         return config_valid;
1295 } /* Validate_Config */
1296
1297
1298 static void
1299 Config_Error_TooLong ( const int Line, const char *Item )
1300 {
1301         Config_Error( LOG_WARNING, "%s, line %d: Value of \"%s\" too long!", NGIRCd_ConfFile, Line, Item );
1302 }
1303
1304
1305 static void
1306 Config_Error_NaN( const int Line, const char *Item )
1307 {
1308         Config_Error( LOG_WARNING, "%s, line %d: Value of \"%s\" is not a number!",
1309                                                 NGIRCd_ConfFile, Line, Item );
1310 }
1311
1312
1313 #ifdef PROTOTYPES
1314 static void Config_Error( const int Level, const char *Format, ... )
1315 #else
1316 static void Config_Error( Level, Format, va_alist )
1317 const int Level;
1318 const char *Format;
1319 va_dcl
1320 #endif
1321 {
1322         /* Error! Write to console and/or logfile. */
1323
1324         char msg[MAX_LOG_MSG_LEN];
1325         va_list ap;
1326
1327         assert( Format != NULL );
1328
1329 #ifdef PROTOTYPES
1330         va_start( ap, Format );
1331 #else
1332         va_start( ap );
1333 #endif
1334         vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
1335         va_end( ap );
1336
1337         /* During "normal operations" the log functions of the daemon should
1338          * be used, but during testing of the configuration file, all messages
1339          * should go directly to the console: */
1340         if (Use_Log) Log( Level, "%s", msg );
1341         else puts( msg );
1342 } /* Config_Error */
1343
1344
1345 static void
1346 Init_Server_Struct( CONF_SERVER *Server )
1347 {
1348         /* Initialize server configuration structur to default values */
1349
1350         assert( Server != NULL );
1351
1352         memset( Server, 0, sizeof (CONF_SERVER) );
1353
1354         Server->group = NONE;
1355         Server->lasttry = time( NULL ) - Conf_ConnectRetry + STARTUP_DELAY;
1356
1357         if( NGIRCd_Passive ) Server->flags = CONF_SFLAG_DISABLED;
1358
1359         Resolve_Init(&Server->res_stat);
1360         Server->conn_id = NONE;
1361         memset(&Server->bind_addr, 0, sizeof(&Server->bind_addr));
1362 } /* Init_Server_Struct */
1363
1364
1365 /* -eof- */