-#define FNAME_LEN 256 /* max. Laenge eines Dateinamen */
-
-#define LINE_LEN 256 /* max. Laenge einer Konfigurationszeile */
-
-#define HOST_LEN 256 /* max. Laenge eines Hostnamen */
-
-#define MAX_LISTEN_PORTS 16 /* max. Anzahl von Listen-Ports */
-
-#define MAX_OPERATORS 8 /* max. Anzahl konfigurierbarer Operatoren */
-
-#define MAX_SERVERS 8 /* max. Anzahl konfigurierbarer Server ("Peers") */
-
-#define MAX_CONNECTIONS 100 /* max. Anzahl von Verbindungen an diesem Server */
+#define FNAME_LEN 256 /* Max. length of file name */
+
+#define LINE_LEN 256 /* Max. length of a line in the
+ configuration file */
+
+#define HOST_LEN 256 /* Max. lenght of fully qualified host
+ names (e. g. "abc.domain.tld") */
+
+#define MAX_SERVERS 16 /* Max. count of configurable servers */
+
+#define MAX_WHOWAS 64 /* Max. number of WHOWAS items */
+#define DEFAULT_WHOWAS 5 /* default count for WHOWAS command */
+
+#define CONNECTION_POOL 100 /* Size of default connection pool */
+
+#define CLIENT_ID_LEN 64 /* Max. length of an IRC ID; see RFC
+ RFC 2812 section 1.1 and 1.2.1 */
+#define CLIENT_NICK_LEN_DEFAULT 10 /* Default nick length, see. RFC 2812
+ * section 1.2.1 */
+#define CLIENT_NICK_LEN 32 /* Maximum nick name length */
+#define CLIENT_PASS_LEN 21 /* Max. password length */
+#define CLIENT_USER_LEN 10 /* Max. length of user name ("login")
+ see RFC 2812, section 1.2.1 */
+#define CLIENT_NAME_LEN 32 /* Max. length of "real names" */
+#define CLIENT_HOST_LEN 64 /* Max. host name length */
+#define CLIENT_MODE_LEN 9 /* Max. lenth of all client modes */
+#define CLIENT_INFO_LEN 64 /* Max. length of server info texts */
+#define CLIENT_AWAY_LEN 128 /* Max. length of away messages */
+#define CLIENT_FLAGS_LEN 100 /* Max. length of client flags */
+
+#define CHANNEL_NAME_LEN 51 /* Max. length of a channel name, see
+ RFC 2812 section 1.3 */
+#define CHANNEL_MODE_LEN 9 /* Max. length of channel modes */
+
+#define COMMAND_LEN 513 /* Max. IRC command length, see. RFC
+ 2812 section 3.2 */
+
+#define READBUFFER_LEN 2048 /* Size of the read buffer of a
+ connection in bytes. */
+#define WRITEBUFFER_LEN 4096 /* Size of the write buffer of a
+ connection in bytes. */
+#define WRITEBUFFER_SLINK_LEN 51200 /* Size of the write buffer of a
+ server link connection in bytes. */
+
+#define PROTOVER "0210" /* Implemented IRC protocol version,
+ see RFC 2813 section 4.1.1. */
+#define PROTOIRC "-IRC" /* Protocol suffix, see RFC 2813
+ section 4.1.1 */
+#define PROTOIRCPLUS "-IRC+" /* Protocol suffix used by the IRC+
+ protocol, see doc/Protocol.txt */
+
+#ifdef IRCPLUS
+# define IRCPLUSFLAGS "CHLS" /* Standard IRC+ flags */
+#endif