Commit | Line | Data |
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5efaa119 | 1 | /* |
f4f66d2c | 2 | * Copyright (c) 1980, 1983, 1988 Regents of the University of California. |
8ff78169 | 3 | * All rights reserved. |
5efaa119 | 4 | * |
8ff78169 | 5 | * Redistribution and use in source and binary forms are permitted |
f4f66d2c KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
8ff78169 | 16 | * |
f4f66d2c | 17 | * @(#)netdb.h 5.10 (Berkeley) %G% |
5efaa119 KM |
18 | */ |
19 | ||
f3ac96de SL |
20 | /* |
21 | * Structures returned by network | |
22 | * data base library. All addresses | |
23 | * are supplied in host order, and | |
24 | * returned in network order (suitable | |
25 | * for use in system calls). | |
26 | */ | |
27 | struct hostent { | |
28 | char *h_name; /* official name of host */ | |
29 | char **h_aliases; /* alias list */ | |
30 | int h_addrtype; /* host address type */ | |
31 | int h_length; /* length of address */ | |
be3764b5 | 32 | char **h_addr_list; /* list of addresses from name server */ |
84156e4e | 33 | #define h_addr h_addr_list[0] /* address, for backward compatiblity */ |
f3ac96de SL |
34 | }; |
35 | ||
36 | /* | |
37 | * Assumption here is that a network number | |
38 | * fits in 32 bits -- probably a poor one. | |
39 | */ | |
40 | struct netent { | |
37164239 JL |
41 | char *n_name; /* official name of net */ |
42 | char **n_aliases; /* alias list */ | |
43 | int n_addrtype; /* net address type */ | |
44 | unsigned long n_net; /* network # */ | |
f3ac96de SL |
45 | }; |
46 | ||
47 | struct servent { | |
48 | char *s_name; /* official service name */ | |
49 | char **s_aliases; /* alias list */ | |
50 | int s_port; /* port # */ | |
51 | char *s_proto; /* protocol to use */ | |
52 | }; | |
53 | ||
54 | struct protoent { | |
55 | char *p_name; /* official protocol name */ | |
56 | char **p_aliases; /* alias list */ | |
57 | int p_proto; /* protocol # */ | |
58 | }; | |
59 | ||
60 | struct hostent *gethostbyname(), *gethostbyaddr(), *gethostent(); | |
61 | struct netent *getnetbyname(), *getnetbyaddr(), *getnetent(); | |
62 | struct servent *getservbyname(), *getservbyport(), *getservent(); | |
63 | struct protoent *getprotobyname(), *getprotobynumber(), *getprotoent(); | |
c0bcfdb1 KD |
64 | |
65 | /* | |
66 | * Error return codes from gethostbyname() and gethostbyaddr() | |
8ff78169 | 67 | * (left in extern int h_errno). |
c0bcfdb1 KD |
68 | */ |
69 | ||
8ff78169 | 70 | #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ |
c0bcfdb1 KD |
71 | #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */ |
72 | #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ | |
8ff78169 MK |
73 | #define NO_DATA 4 /* Valid name, no data record of requested type */ |
74 | #define NO_ADDRESS NO_DATA /* no address, look for MX record */ |