+static bool
+Check_ArgIsTrue( const char *Arg )
+{
+ if( strcasecmp( Arg, "yes" ) == 0 ) return true;
+ if( strcasecmp( Arg, "true" ) == 0 ) return true;
+ if( atoi( Arg ) != 0 ) return true;
+
+ return false;
+} /* Check_ArgIsTrue */
+
+
+static unsigned int Handle_MaxNickLength(int Line, const char *Arg)
+{
+ unsigned new;
+
+ new = (unsigned) atoi(Arg) + 1;
+ if (new > CLIENT_NICK_LEN) {
+ Config_Error(LOG_WARNING,
+ "%s, line %d: Value of \"MaxNickLength\" exceeds %u!",
+ NGIRCd_ConfFile, Line, CLIENT_NICK_LEN - 1);
+ return CLIENT_NICK_LEN;
+ }
+ if (new < 2) {
+ Config_Error(LOG_WARNING,
+ "%s, line %d: Value of \"MaxNickLength\" must be at least 1!",
+ NGIRCd_ConfFile, Line);
+ return 2;
+ }
+ return new;
+} /* Handle_MaxNickLength */
+
+
+static void
+Handle_GLOBAL( int Line, char *Var, char *Arg )
+{
+ struct passwd *pwd;
+ struct group *grp;
+ size_t len;
+
+ assert( Line > 0 );
+ assert( Var != NULL );
+ assert( Arg != NULL );
+
+ if( strcasecmp( Var, "Name" ) == 0 ) {
+ /* Server name */
+ len = strlcpy( Conf_ServerName, Arg, sizeof( Conf_ServerName ));
+ if (len >= sizeof( Conf_ServerName ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Info" ) == 0 ) {
+ /* Info text of server */
+ len = strlcpy( Conf_ServerInfo, Arg, sizeof( Conf_ServerInfo ));
+ if (len >= sizeof( Conf_ServerInfo ))
+ Config_Error_TooLong ( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Password" ) == 0 ) {
+ /* Global server password */
+ len = strlcpy( Conf_ServerPwd, Arg, sizeof( Conf_ServerPwd ));
+ if (len >= sizeof( Conf_ServerPwd ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "AdminInfo1" ) == 0 ) {
+ /* Administrative info #1 */
+ len = strlcpy( Conf_ServerAdmin1, Arg, sizeof( Conf_ServerAdmin1 ));
+ if (len >= sizeof( Conf_ServerAdmin1 ))
+ Config_Error_TooLong ( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "AdminInfo2" ) == 0 ) {
+ /* Administrative info #2 */
+ len = strlcpy( Conf_ServerAdmin2, Arg, sizeof( Conf_ServerAdmin2 ));
+ if (len >= sizeof( Conf_ServerAdmin2 ))
+ Config_Error_TooLong ( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "AdminEMail" ) == 0 ) {
+ /* Administrative email contact */
+ len = strlcpy( Conf_ServerAdminMail, Arg, sizeof( Conf_ServerAdminMail ));
+ if (len >= sizeof( Conf_ServerAdminMail ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+
+ if( strcasecmp( Var, "Ports" ) == 0 ) {
+ ports_parse(&Conf_ListenPorts, Line, Arg);
+ return;
+ }
+ if( strcasecmp( Var, "MotdFile" ) == 0 ) {
+ /* "Message of the day" (MOTD) file */
+ len = strlcpy( Conf_MotdFile, Arg, sizeof( Conf_MotdFile ));
+ if (len >= sizeof( Conf_MotdFile ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "MotdPhrase" ) == 0 ) {
+ /* "Message of the day" phrase (instead of file) */
+ len = strlcpy( Conf_MotdPhrase, Arg, sizeof( Conf_MotdPhrase ));
+ if (len >= sizeof( Conf_MotdPhrase ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "ChrootDir" ) == 0 ) {
+ /* directory for chroot() */
+ len = strlcpy( Conf_Chroot, Arg, sizeof( Conf_Chroot ));
+ if (len >= sizeof( Conf_Chroot ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if ( strcasecmp( Var, "PidFile" ) == 0 ) {
+ /* name of pidfile */
+ len = strlcpy( Conf_PidFile, Arg, sizeof( Conf_PidFile ));
+ if (len >= sizeof( Conf_PidFile ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "ServerUID" ) == 0 ) {
+ /* UID the daemon should switch to */
+ pwd = getpwnam( Arg );
+ if( pwd ) Conf_UID = pwd->pw_uid;
+ else {
+#ifdef HAVE_ISDIGIT
+ if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
+ else
+#endif
+ Conf_UID = (unsigned int)atoi( Arg );
+ }
+ return;
+ }
+ if( strcasecmp( Var, "ServerGID" ) == 0 ) {
+ /* GID the daemon should use */
+ grp = getgrnam( Arg );
+ if( grp ) Conf_GID = grp->gr_gid;
+ else {
+#ifdef HAVE_ISDIGIT
+ if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
+ else
+#endif
+ Conf_GID = (unsigned int)atoi( Arg );
+ }
+ return;
+ }
+ if( strcasecmp( Var, "PingTimeout" ) == 0 ) {
+ /* PING timeout */
+ Conf_PingTimeout = atoi( Arg );
+ if( Conf_PingTimeout < 5 ) {
+ Config_Error( LOG_WARNING, "%s, line %d: Value of \"PingTimeout\" too low!",
+ NGIRCd_ConfFile, Line );
+ Conf_PingTimeout = 5;
+ }
+ return;
+ }
+ if( strcasecmp( Var, "PongTimeout" ) == 0 ) {
+ /* PONG timeout */
+ Conf_PongTimeout = atoi( Arg );
+ if( Conf_PongTimeout < 5 ) {
+ Config_Error( LOG_WARNING, "%s, line %d: Value of \"PongTimeout\" too low!",
+ NGIRCd_ConfFile, Line );
+ Conf_PongTimeout = 5;
+ }
+ return;
+ }
+ if( strcasecmp( Var, "ConnectRetry" ) == 0 ) {
+ /* Seconds between connection attempts to other servers */
+ Conf_ConnectRetry = atoi( Arg );
+ if( Conf_ConnectRetry < 5 ) {
+ Config_Error( LOG_WARNING, "%s, line %d: Value of \"ConnectRetry\" too low!",
+ NGIRCd_ConfFile, Line );
+ Conf_ConnectRetry = 5;
+ }
+ return;
+ }
+ if( strcasecmp( Var, "PredefChannelsOnly" ) == 0 ) {
+ /* Should we only allow pre-defined-channels? (i.e. users cannot create their own channels) */
+ Conf_PredefChannelsOnly = Check_ArgIsTrue( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "NoDNS" ) == 0 ) {
+ /* don't do reverse dns lookups when clients connect? */
+ Conf_NoDNS = Check_ArgIsTrue( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "OperCanUseMode" ) == 0 ) {
+ /* Are IRC operators allowed to use MODE in channels they aren't Op in? */
+ Conf_OperCanMode = Check_ArgIsTrue( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "OperServerMode" ) == 0 ) {
+ /* Mask IRC operator as if coming from the server? (ircd-irc2 compat hack) */
+ Conf_OperServerMode = Check_ArgIsTrue( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "MaxConnections" ) == 0 ) {
+ /* Maximum number of connections. 0 -> "no limit". */
+#ifdef HAVE_ISDIGIT
+ if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var);
+ else
+#endif
+ Conf_MaxConnections = atol( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "MaxConnectionsIP" ) == 0 ) {
+ /* Maximum number of simultaneous connections from one IP. 0 -> "no limit" */
+#ifdef HAVE_ISDIGIT
+ if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
+ else
+#endif
+ Conf_MaxConnectionsIP = atoi( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "MaxJoins" ) == 0 ) {
+ /* Maximum number of channels a user can join. 0 -> "no limit". */
+#ifdef HAVE_ISDIGIT
+ if( ! isdigit( (int)*Arg )) Config_Error_NaN( Line, Var );
+ else
+#endif
+ Conf_MaxJoins = atoi( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "MaxNickLength" ) == 0 ) {
+ /* Maximum length of a nick name; must be same on all servers
+ * within the IRC network! */
+ Conf_MaxNickLength = Handle_MaxNickLength(Line, Arg);
+ return;
+ }
+
+ if( strcasecmp( Var, "Listen" ) == 0 ) {
+ /* IP-Address to bind sockets */
+ len = strlcpy( Conf_ListenAddress, Arg, sizeof( Conf_ListenAddress ));
+ if (len >= sizeof( Conf_ListenAddress ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+
+ Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Unknown variable \"%s\"!",
+ NGIRCd_ConfFile, Line, Var );
+} /* Handle_GLOBAL */
+
+
+static void
+Handle_OPERATOR( int Line, char *Var, char *Arg )
+{
+ unsigned int opercount;
+ size_t len;
+ assert( Line > 0 );
+ assert( Var != NULL );
+ assert( Arg != NULL );
+ assert( Conf_Oper_Count > 0 );
+
+ if ( Conf_Oper_Count == 0 )
+ return;
+
+ opercount = Conf_Oper_Count - 1;
+
+ if( strcasecmp( Var, "Name" ) == 0 ) {
+ /* Name of IRC operator */
+ len = strlcpy( Conf_Oper[opercount].name, Arg, sizeof( Conf_Oper[opercount].name ));
+ if (len >= sizeof( Conf_Oper[opercount].name ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Password" ) == 0 ) {
+ /* Password of IRC operator */
+ len = strlcpy( Conf_Oper[opercount].pwd, Arg, sizeof( Conf_Oper[opercount].pwd ));
+ if (len >= sizeof( Conf_Oper[opercount].pwd ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Mask" ) == 0 ) {
+ if (Conf_Oper[opercount].mask) return; /* Hostname already configured */
+
+ Conf_Oper[opercount].mask = strdup_warn( Arg );
+ return;
+ }
+ Config_Error( LOG_ERR, "%s, line %d (section \"Operator\"): Unknown variable \"%s\"!",
+ NGIRCd_ConfFile, Line, Var );
+} /* Handle_OPERATOR */
+
+
+static void
+Handle_SERVER( int Line, char *Var, char *Arg )
+{
+ long port;
+ size_t len;
+
+ assert( Line > 0 );
+ assert( Var != NULL );
+ assert( Arg != NULL );
+
+ /* Ignore server block if no space is left in server configuration structure */
+ if( New_Server_Idx <= NONE ) return;
+
+ if( strcasecmp( Var, "Host" ) == 0 ) {
+ /* Hostname of the server */
+ len = strlcpy( New_Server.host, Arg, sizeof( New_Server.host ));
+ if (len >= sizeof( New_Server.host ))
+ Config_Error_TooLong ( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Name" ) == 0 ) {
+ /* Name of the server ("Nick"/"ID") */
+ len = strlcpy( New_Server.name, Arg, sizeof( New_Server.name ));
+ if (len >= sizeof( New_Server.name ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "MyPassword" ) == 0 ) {
+ /* Password of this server which is sent to the peer */
+ if (*Arg == ':') {
+ Config_Error(LOG_ERR,
+ "%s, line %d (section \"Server\"): MyPassword must not start with ':'!",
+ NGIRCd_ConfFile, Line);
+ }
+ len = strlcpy( New_Server.pwd_in, Arg, sizeof( New_Server.pwd_in ));
+ if (len >= sizeof( New_Server.pwd_in ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "PeerPassword" ) == 0 ) {
+ /* Passwort of the peer which must be received */
+ len = strlcpy( New_Server.pwd_out, Arg, sizeof( New_Server.pwd_out ));
+ if (len >= sizeof( New_Server.pwd_out ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Port" ) == 0 ) {
+ /* Port to which this server should connect */
+ port = atol( Arg );
+ if( port > 0 && port < 0xFFFF )
+ New_Server.port = (UINT16)port;
+ else
+ Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Illegal port number %ld!",
+ NGIRCd_ConfFile, Line, port );
+ return;
+ }
+ if( strcasecmp( Var, "Group" ) == 0 ) {
+ /* Server group */
+#ifdef HAVE_ISDIGIT
+ if( ! isdigit( (int)*Arg ))
+ Config_Error_NaN( Line, Var );
+ else
+#endif
+ New_Server.group = atoi( Arg );
+ return;
+ }
+ if( strcasecmp( Var, "Passive" ) == 0 ) {
+ if (Check_ArgIsTrue(Arg))
+ New_Server.flags |= CONF_SFLAG_DISABLED;
+ return;
+ }
+
+ Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Unknown variable \"%s\"!",
+ NGIRCd_ConfFile, Line, Var );
+} /* Handle_SERVER */
+
+
+static bool
+Handle_Channelname(size_t chancount, const char *name)
+{
+ size_t size = sizeof( Conf_Channel[chancount].name );
+ char *dest = Conf_Channel[chancount].name;
+
+ if (*name && *name != '#') {
+ *dest = '#';
+ --size;
+ ++dest;
+ }
+ return size > strlcpy(dest, name, size);
+}
+
+
+static void
+Handle_CHANNEL( int Line, char *Var, char *Arg )
+{
+ size_t len;
+ size_t chancount = 0;
+
+ assert( Line > 0 );
+ assert( Var != NULL );
+ assert( Arg != NULL );
+ if (Conf_Channel_Count > 0)
+ chancount = Conf_Channel_Count - 1;
+
+ if( strcasecmp( Var, "Name" ) == 0 ) {
+ if (!Handle_Channelname(chancount, Arg))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Modes" ) == 0 ) {
+ /* Initial modes */
+ len = strlcpy( Conf_Channel[chancount].modes, Arg, sizeof( Conf_Channel[chancount].modes ));
+ if (len >= sizeof( Conf_Channel[chancount].modes ))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+ if( strcasecmp( Var, "Topic" ) == 0 ) {
+ /* Initial topic */
+ if (!array_copys( &Conf_Channel[chancount].topic, Arg))
+ Config_Error_TooLong( Line, Var );
+ return;
+ }
+
+ if( strcasecmp( Var, "Key" ) == 0 ) {
+ /* Initial Channel Key (mode k) */
+ len = strlcpy(Conf_Channel[chancount].key, Arg, sizeof(Conf_Channel[chancount].key));
+ if (len >= sizeof( Conf_Channel[chancount].key ))
+ Config_Error_TooLong(Line, Var);
+ return;
+ }
+
+ if( strcasecmp( Var, "MaxUsers" ) == 0 ) {
+ /* maximum user limit, mode l */
+ Conf_Channel[chancount].maxusers = (unsigned long) atol(Arg);
+ if (Conf_Channel[chancount].maxusers == 0)
+ Config_Error_NaN(Line, Var);
+ return;
+ }
+
+ Config_Error( LOG_ERR, "%s, line %d (section \"Channel\"): Unknown variable \"%s\"!",
+ NGIRCd_ConfFile, Line, Var );
+} /* Handle_CHANNEL */
+
+
+static void
+Validate_Config(bool Configtest, bool Rehash)
+{
+ /* Validate configuration settings. */
+
+#ifdef DEBUG
+ int i, servers, servers_once;
+#endif
+ char *ptr;
+
+ /* Validate configured server name, see RFC 2812 section 2.3.1 */
+ ptr = Conf_ServerName;
+ do {
+ if (*ptr >= 'a' && *ptr <= 'z') continue;
+ if (*ptr >= 'A' && *ptr <= 'Z') continue;
+ if (*ptr >= '0' && *ptr <= '9') continue;
+ if (ptr > Conf_ServerName) {
+ if (*ptr == '.' || *ptr == '-')
+ continue;
+ }
+ Conf_ServerName[0] = '\0';
+ break;
+ } while (*(++ptr));
+
+ if (!Conf_ServerName[0]) {
+ /* No server name configured! */
+ Config_Error(LOG_ALERT,
+ "No (valid) server name configured in \"%s\" (section 'Global': 'Name')!",
+ NGIRCd_ConfFile);
+ if (!Configtest && !Rehash) {
+ Config_Error(LOG_ALERT,
+ "%s exiting due to fatal errors!",
+ PACKAGE_NAME);
+ exit(1);
+ }
+ }
+
+ if (Conf_ServerName[0] && !strchr(Conf_ServerName, '.')) {
+ /* No dot in server name! */
+ Config_Error(LOG_ALERT,
+ "Invalid server name configured in \"%s\" (section 'Global': 'Name'): Dot missing!",
+ NGIRCd_ConfFile);
+ if (!Configtest) {
+ Config_Error(LOG_ALERT,
+ "%s exiting due to fatal errors!",
+ PACKAGE_NAME);
+ exit(1);
+ }
+ }
+
+#ifdef STRICT_RFC
+ if (!Conf_ServerAdminMail[0]) {
+ /* No administrative contact configured! */
+ Config_Error(LOG_ALERT,
+ "No administrator email address configured in \"%s\" ('AdminEMail')!",
+ NGIRCd_ConfFile);
+ if (!Configtest) {
+ Config_Error(LOG_ALERT,
+ "%s exiting due to fatal errors!",
+ PACKAGE_NAME);
+ exit(1);
+ }
+ }
+#endif
+
+ if (!Conf_ServerAdmin1[0] && !Conf_ServerAdmin2[0]
+ && !Conf_ServerAdminMail[0]) {
+ /* No administrative information configured! */
+ Config_Error(LOG_WARNING,
+ "No administrative information configured but required by RFC!");
+ }
+
+#ifdef DEBUG
+ servers = servers_once = 0;
+ for (i = 0; i < MAX_SERVERS; i++) {
+ if (Conf_Server[i].name[0]) {
+ servers++;
+ if (Conf_Server[i].flags & CONF_SFLAG_ONCE)
+ servers_once++;
+ }
+ }
+ Log(LOG_DEBUG,
+ "Configuration: Operators=%d, Servers=%d[%d], Channels=%d",
+ Conf_Oper_Count, servers, servers_once, Conf_Channel_Count);
+#endif
+} /* Validate_Config */
+
+
+static void
+Config_Error_TooLong ( const int Line, const char *Item )
+{
+ Config_Error( LOG_WARNING, "%s, line %d: Value of \"%s\" too long!", NGIRCd_ConfFile, Line, Item );
+}
+
+
+static void
+Config_Error_NaN( const int Line, const char *Item )
+{
+ Config_Error( LOG_WARNING, "%s, line %d: Value of \"%s\" is not a number!",
+ NGIRCd_ConfFile, Line, Item );
+}
+
+
+#ifdef PROTOTYPES
+static void Config_Error( const int Level, const char *Format, ... )
+#else
+static void Config_Error( Level, Format, va_alist )
+const int Level;
+const char *Format;
+va_dcl
+#endif
+{
+ /* Error! Write to console and/or logfile. */
+
+ char msg[MAX_LOG_MSG_LEN];
+ va_list ap;
+
+ assert( Format != NULL );
+
+#ifdef PROTOTYPES
+ va_start( ap, Format );
+#else
+ va_start( ap );
+#endif
+ vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
+ va_end( ap );
+
+ /* During "normal operations" the log functions of the daemon should
+ * be used, but during testing of the configuration file, all messages
+ * should go directly to the console: */
+ if (Use_Log) Log( Level, "%s", msg );
+ else puts( msg );
+} /* Config_Error */
+
+
+static void
+Init_Server_Struct( CONF_SERVER *Server )
+{
+ /* Initialize server configuration structur to default values */
+
+ assert( Server != NULL );
+
+ memset( Server, 0, sizeof (CONF_SERVER) );
+
+ Server->group = NONE;
+ Server->lasttry = time( NULL ) - Conf_ConnectRetry + STARTUP_DELAY;
+
+ if( NGIRCd_Passive ) Server->flags = CONF_SFLAG_DISABLED;
+
+ Resolve_Init(&Server->res_stat);
+ Server->conn_id = NONE;
+} /* Init_Server_Struct */
+
+