2 * Copyright (c) 1980, 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)netdb.h 8.1 (Berkeley) 6/2/93
36 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
38 * Permission to use, copy, modify, and distribute this software for any
39 * purpose with or without fee is hereby granted, provided that the above
40 * copyright notice and this permission notice appear in all copies, and that
41 * the name of Digital Equipment Corporation not be used in advertising or
42 * publicity pertaining to distribution of the document or software without
43 * specific, written prior permission.
45 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
46 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
47 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
48 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
49 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
50 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
51 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
60 #define _PATH_HEQUIV "/etc/hosts.equiv"
61 #define _PATH_HOSTS "/etc/hosts"
62 #define _PATH_NETWORKS "/etc/networks"
63 #define _PATH_PROTOCOLS "/etc/protocols"
64 #define _PATH_SERVICES "/etc/services"
67 * Structures returned by network data base library. All addresses are
68 * supplied in host order, and returned in network order (suitable for
69 * use in system calls).
72 char *h_name
; /* official name of host */
73 char **h_aliases
; /* alias list */
74 int h_addrtype
; /* host address type */
75 int h_length
; /* length of address */
76 char **h_addr_list
; /* list of addresses from name server */
77 #define h_addr h_addr_list[0] /* address, for backward compatiblity */
81 * Assumption here is that a network number
82 * fits in an unsigned long -- probably a poor one.
85 char *n_name
; /* official name of net */
86 char **n_aliases
; /* alias list */
87 int n_addrtype
; /* net address type */
88 unsigned long n_net
; /* network # */
92 char *s_name
; /* official service name */
93 char **s_aliases
; /* alias list */
94 int s_port
; /* port # */
95 char *s_proto
; /* protocol to use */
99 char *p_name
; /* official protocol name */
100 char **p_aliases
; /* alias list */
101 int p_proto
; /* protocol # */
105 * Error return codes from gethostbyname() and gethostbyaddr()
106 * (left in extern int h_errno).
111 #define NETDB_INTERNAL -1 /* see errno */
112 #define NETDB_SUCCESS 0 /* no problem */
113 #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
114 #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */
115 #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
116 #define NO_DATA 4 /* Valid name, no data record of requested type */
117 #define NO_ADDRESS NO_DATA /* no address, look for MX record */
119 #include <sys/cdefs.h>
122 void endhostent
__P((void));
123 void endnetent
__P((void));
124 void endprotoent
__P((void));
125 void endservent
__P((void));
126 struct hostent
*gethostbyaddr
__P((const char *, int, int));
127 struct hostent
*gethostbyname
__P((const char *));
128 struct hostent
*gethostent
__P((void));
129 struct netent
*getnetbyaddr
__P((long, int)); /* u_long? */
130 struct netent
*getnetbyname
__P((const char *));
131 struct netent
*getnetent
__P((void));
132 struct protoent
*getprotobyname
__P((const char *));
133 struct protoent
*getprotobynumber
__P((int));
134 struct protoent
*getprotoent
__P((void));
135 struct servent
*getservbyname
__P((const char *, const char *));
136 struct servent
*getservbyport
__P((int, const char *));
137 struct servent
*getservent
__P((void));
138 void herror
__P((const char *));
139 char *hstrerror
__P((int));
140 void sethostent
__P((int));
141 /* void sethostfile __P((const char *)); */
142 void setnetent
__P((int));
143 void setprotoent
__P((int));
144 void setservent
__P((int));
147 #endif /* !_NETDB_H_ */