usr/src/cmd/mailx/hdr/configdefs.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 /*
  27  * University Copyright- Copyright (c) 1982, 1986, 1988
  28  * The Regents of the University of California
  29  * All Rights Reserved
  30  *
  31  * University Acknowledgment- Portions of this document are derived from
  32  * software developed by the University of California, Berkeley, and its
  33  * contributors.
  34  */
  35
  36 #pragma ident   "%Z%%M% %I%     %E% SMI"
  37
  38 /*
  39  * mailx -- a modified version of a University of California at Berkeley
  40  *      mail program
  41  *
  42  * This file contains the definitions of data structures used in
  43  * configuring the network behavior of Mail when replying.
  44  */
  45
  46 /*
  47  * The following constants are used when you are running 4.1a bsd or
  48  * later on a local network.  The name thus found is inserted
  49  * into the host table slot whose name was originally EMPTY.
  50  */
  51 #define EMPTY           "** empty **"
  52 #define EMPTYID         'E'
  53
  54 /*
  55  * The following data structure is the host table.  You must have
  56  * an entry here for your own machine, plus any special stuff you
  57  * expect the mailer to know about.  Not all hosts need be here, however:
  58  * mailx can dope out stuff about hosts on the fly by looking
  59  * at addresses.  The machines needed here are:
  60  *      1) The local machine
  61  *      2) Any machines on the path to a network gateway
  62  *      3) Any machines with nicknames that you want to have considered
  63  *         the same.
  64  * The machine id letters can be anything you like and are not seen
  65  * externally.  Be sure not to use characters with the 0200 bit set --
  66  * these have special meanings.
  67  */
  68 struct netmach {
  69         char    *nt_machine;
  70         char    nt_mid;
  71         short   nt_type;
  72 };
  73
  74 /*
  75  * Network type codes.  Basically, there is one for each different
  76  * network, if the network can be discerned by the separator character,
  77  * such as @ for the arpa net.  The purpose of these codes is to
  78  * coalesce cases where more than one character means the same thing,
  79  * such as % and @ for the arpanet.  Also, the host table uses a
  80  * bit map of these codes to show what it is connected to.
  81  * BN -- connected to Bell Net.
  82  * AN -- connected to ARPA net, SN -- connected to Schmidt net.
  83  */
  84 #define AN      1                       /* Connected to ARPA net */
  85 #define BN      2                       /* Connected to BTL net */
  86 #define SN      4                       /* Connected to Schmidt net */
  87
  88 /*
  89  * Data structure for table mapping network characters to network types.
  90  */
  91 struct ntypetab {
  92         char    nt_char;                /* Actual character separator */
  93         int     nt_bcode;               /* Type bit code */
  94 };
  95
  96 /*
  97  * Codes for the "kind" of a network.  IMPLICIT means that if there are
  98  * physically several machines on the path, one does not list them in the
  99  * address.  The arpa net is like this.  EXPLICIT means you list them,
 100  * as in UUCP.
 101  * By the way, this distinction means we lose if anyone actually uses the
 102  * arpa net subhost convention: name@subhost@arpahost
 103  */
 104 #define IMPLICIT        1
 105 #define EXPLICIT        2
 106
 107 /*
 108  * Table for mapping a network code to its type -- IMPLICIT routing or
 109  * IMPLICIT routing.
 110  */
 111 struct nkindtab {
 112         int     nk_type;                /* Its bit code */
 113         int     nk_kind;                /* Whether explicit or implicit */
 114 };
 115
 116 /*
 117  * The following table gives the order of preference of the various
 118  * networks.  Thus, if we have a choice of how to get somewhere, we
 119  * take the preferred route.
 120  */
 121 struct netorder {
 122         short   no_stat;
 123         char    no_char;
 124 };
 125
 126 /*
 127  * External declarations for above defined tables.
 128  */
 129 extern struct netmach netmach[];
 130 extern struct ntypetab ntypetab[];
 131 extern struct nkindtab nkindtab[];
 132 extern struct netorder netorder[];
 133 extern char *metanet;