+ if (!Conf_ListenAddress) {
+ Config_Error(LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME);
+ exit(1);
+ }
+
+ /* No MOTD phrase configured? (re)try motd file. */
+ if (array_bytes(&Conf_Motd) == 0)
+ Read_Motd(Conf_MotdFile);
+
+#ifdef SSL_SUPPORT
+ /* Make sure that all SSL-related files are readable */
+ CheckFileReadable("CertFile", Conf_SSLOptions.CertFile);
+ CheckFileReadable("DHFile", Conf_SSLOptions.DHFile);
+ CheckFileReadable("KeyFile", Conf_SSLOptions.KeyFile);
+#endif
+
+ return true;
+}
+
+/**
+ * Check whether a string argument is "true" or "false".
+ *
+ * @param Arg Input string.
+ * @returns true if the input string has been parsed as "yes", "true"
+ * (case insensitive) or a non-zero integer value.
+ */
+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;
+}
+
+/**
+ * Handle setting of "MaxNickLength".
+ *
+ * @param Line Line number in configuration file.
+ * @raram Arg Input string.
+ * @returns New configured maximum nick name length.
+ */
+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;
+}
+
+/**
+ * Output a warning messages if IDENT is configured but not compiled in.
+ */
+static void
+WarnIdent(int UNUSED Line)
+{
+#ifndef IDENTAUTH
+ if (Conf_Ident) {
+ /* user has enabled ident lookups explicitly, but ... */
+ Config_Error(LOG_WARNING,
+ "%s: line %d: \"Ident = yes\", but ngircd was built without IDENT support!",
+ NGIRCd_ConfFile, Line);
+ }
+#endif
+}
+
+/**
+ * Output a warning messages if IPv6 is configured but not compiled in.
+ */
+static void
+WarnIPv6(int UNUSED Line)
+{
+#ifndef WANT_IPV6
+ if (Conf_ConnectIPv6) {
+ /* user has enabled IPv6 explicitly, but ... */
+ Config_Error(LOG_WARNING,
+ "%s: line %d: \"ConnectIPv6 = yes\", but ngircd was built without IPv6 support!",
+ NGIRCd_ConfFile, Line);
+ }
+#endif
+}
+
+/**
+ * Output a warning messages if PAM is configured but not compiled in.
+ */
+static void
+WarnPAM(int UNUSED Line)
+{
+#ifndef PAM
+ if (Conf_PAM) {
+ Config_Error(LOG_WARNING,
+ "%s: line %d: \"PAM = yes\", but ngircd was built without PAM support!",
+ NGIRCd_ConfFile, Line);
+ }
+#endif
+}
+
+/**
+ * Handle legacy "NoXXX" options in [GLOBAL] section.
+ *
+ * TODO: This function and support for "NoXXX" could be removed starting
+ * with ngIRCd release 19 (one release after marking it "deprecated").
+ *
+ * @param Var Variable name.
+ * @param Arg Argument string.
+ * @returns true if a NoXXX option has been processed; false otherwise.
+ */
+static bool
+CheckLegacyNoOption(const char *Var, const char *Arg)
+{
+ if(strcasecmp(Var, "NoDNS") == 0) {
+ Conf_DNS = !Check_ArgIsTrue( Arg );
+ return true;
+ }
+ if (strcasecmp(Var, "NoIdent") == 0) {
+ Conf_Ident = !Check_ArgIsTrue(Arg);
+ return true;
+ }
+ if(strcasecmp(Var, "NoPAM") == 0) {
+ Conf_PAM = !Check_ArgIsTrue(Arg);
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Handle deprecated legacy options in [GLOBAL] section.
+ *
+ * TODO: This function and support for these options in the [Global] section
+ * could be removed starting with ngIRCd release 19 (one release after
+ * marking it "deprecated").
+ *
+ * @param Var Variable name.
+ * @param Arg Argument string.
+ * @returns true if a legacy option has been processed; false otherwise.
+ */
+static const char*
+CheckLegacyGlobalOption(int Line, char *Var, char *Arg)
+{
+ if (strcasecmp(Var, "AllowRemoteOper") == 0
+ || strcasecmp(Var, "ChrootDir") == 0
+ || strcasecmp(Var, "ConnectIPv4") == 0
+ || strcasecmp(Var, "ConnectIPv6") == 0
+ || strcasecmp(Var, "OperCanUseMode") == 0
+ || strcasecmp(Var, "OperChanPAutoOp") == 0
+ || strcasecmp(Var, "OperServerMode") == 0
+ || strcasecmp(Var, "PredefChannelsOnly") == 0
+ || strcasecmp(Var, "SyslogFacility") == 0
+ || strcasecmp(Var, "WebircPassword") == 0) {
+ Handle_OPTIONS(Line, Var, Arg);
+ return "[Options]";
+ }
+ if (strcasecmp(Var, "ConnectRetry") == 0
+ || strcasecmp(Var, "MaxConnections") == 0
+ || strcasecmp(Var, "MaxConnectionsIP") == 0
+ || strcasecmp(Var, "MaxJoins") == 0
+ || strcasecmp(Var, "MaxNickLength") == 0
+ || strcasecmp(Var, "PingTimeout") == 0
+ || strcasecmp(Var, "PongTimeout") == 0) {
+ Handle_LIMITS(Line, Var, Arg);
+ return "[Limits]";
+ }
+#ifdef SSL_SUPPORT
+ if (strcasecmp(Var, "SSLCertFile") == 0
+ || strcasecmp(Var, "SSLDHFile") == 0
+ || strcasecmp(Var, "SSLKeyFile") == 0
+ || strcasecmp(Var, "SSLKeyFilePassword") == 0
+ || strcasecmp(Var, "SSLPorts") == 0) {
+ Handle_SSL(Line, Var + 3, Arg);
+ return "[SSL]";
+ }
+#endif
+
+ return NULL;
+}
+
+/**
+ * Strip "no" prefix of a string.
+ *
+ * TODO: This function and support for "NoXXX" should be removed starting
+ * with ngIRCd release 19! (One release after marking it "deprecated").
+ *
+ * @param str Pointer to input string starting with "no".
+ * @returns New pointer to string without "no" prefix.
+ */
+static const char *
+NoNo(const char *str)
+{
+ assert(strncasecmp("no", str, 2) == 0 && str[2]);
+ return str + 2;
+}
+
+/**
+ * Invert "boolean" string.
+ *
+ * TODO: This function and support for "NoXXX" should be removed starting
+ * with ngIRCd release 19! (One release after marking it "deprecated").
+ *
+ * @param arg "Boolean" input string.
+ * @returns Pointer to inverted "boolean string".
+ */
+static const char *
+InvertArg(const char *arg)
+{
+ return yesno_to_str(!Check_ArgIsTrue(arg));
+}
+
+/**
+ * Handle variable in [Global] configuration section.
+ *
+ * @param Line Line numer in configuration file.
+ * @param Var Variable name.
+ * @param Arg Variable argument.
+ */
+static void
+Handle_GLOBAL( int Line, char *Var, char *Arg )