include/ircd_defs.h

   1 /*
   2  * IRC - Internet Relay Chat, include/ircd_defs.h
   3  * Copyright (C) 1990 Jarkko Oikarinen and
   4  *                    University of Oulu, Computing Center
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2, or (at your option)
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  * Commentary by Bleep (Thomas Helvey)
  21  */
  22 #ifndef INCLUDED_ircd_defs_h
  23 #define INCLUDED_ircd_defs_h
  24 /** @file
  25  * @brief Definitions used everywhere in the server.
  26  *
  27  * NOTE: Changing any of these definitions (except for the
  28  * target-related ones at the bottom) is equivalent to a protocol
  29  * revision. Every server on a given network must use the same values.
  30  * @version $Id: ircd_defs.h,v 1.9 2004/10/05 02:21:08 entrope Exp $
  31  */
  32
  33 /** Maximum length allowed for a nickname.
  34  * Because certain networks are very helpful in finding bugs, the below
  35  * is a default that can easily be overridden in CFLAGS.  Just add
  36  * -DNICKLEN=15 to CFLAGS during configure, and you can forget about
  37  * it.  Thanks for helping debug guys.
  38  * See also F:NICKLEN in ircd.conf.
  39  */
  40 #ifndef NICKLEN
  41 #define NICKLEN         15
  42 #endif
  43 /** Maximum length allowed of a user name, including an optional
  44  * leading '~' if the user name has not been authenticated by an auth (RFC 931)
  45  * server query.
  46  */
  47 #define USERLEN         10
  48 /** Exactly long enough to hold one (1) segment of FQDN or hostname.
  49  * This is due to an historical misinterpretation of RFC 1034.
  50  * 3.1. Name space specifications and terminology
  51  *
  52  * The domain name space is a tree structure.  Each node and leaf on the
  53  * tree corresponds to a resource set (which may be empty).  The domain
  54  * system makes no distinctions between the uses of the interior nodes and
  55  * leaves, and this memo uses the term "node" to refer to both.
  56  *
  57  * Each node has a label, which is zero to 63 octets in length.  Brother
  58  * nodes may not have the same label, although the same label can be used
  59  * for nodes which are not brothers.  One label is reserved, and that is
  60  * the null (i.e., zero length) label used for the root.
  61  *
  62  * This has proven not to be a problem in the past as connections with FQDN's
  63  * of greater than 63 characters are rejected by the server, and most FQDN's
  64  * are shorter. It is possible to have a valid FQDN longer than 63 characters.
  65  */
  66 #define HOSTLEN         63
  67 /** Maximum length for the account name, which can be set
  68  * with the ACCOUNT (AC) command.  This is used for keeping track of who's
  69  * logged into which account, for the benefit of irc services.
  70  */
  71 #define ACCOUNTLEN      12
  72 /** Maximum length for user supplied information about a client
  73  * connection (gcos). This information is set at client/server registration
  74  * time.
  75  */
  76 #define REALLEN         50
  77 /** Maximum length for a password used for connecting servers and clients.
  78  */
  79 #define PASSWDLEN       20
  80 /** Maximum length of a numeric IP (v4 or v6) address.
  81  * "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"
  82  */
  83 #define SOCKIPLEN 45
  84 /** Maximum length for channel topics and kill comments.
  85  */
  86 #define TOPICLEN        160
  87 /** Maximum length for away messages.
  88  */
  89 #define AWAYLEN         160
  90 /** Exactly long enough to hold one protocol message (RFC 1459)
  91  * including the line termination (\\r\\n).  DO NOT CHANGE THIS!!!!
  92  */
  93 #define BUFSIZE         512
  94
  95 /** Maximum available targets for a user. */
  96 #define MAXTARGETS      20
  97 /** Starting free targets for a user. */
  98 #define STARTTARGETS    10
  99 /** Target number to start assigning new targets. */
 100 #define RESERVEDTARGETS 12
 101
 102 #endif /* INCLUDED_ircd_defs_h */