projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 5efaa119 KM |
1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| d492c426 | 6 | * @(#)netdb.h 5.5 (Berkeley) %G% |
| 5efaa119 KM |
7 | */ |
| 8 | ||
| f3ac96de SL |
9 | /* |
| 10 | * Structures returned by network | |
| 11 | * data base library. All addresses | |
| 12 | * are supplied in host order, and | |
| 13 | * returned in network order (suitable | |
| 14 | * for use in system calls). | |
| 15 | */ | |
| 16 | struct hostent { | |
| 17 | char *h_name; /* official name of host */ | |
| 18 | char **h_aliases; /* alias list */ | |
| 19 | int h_addrtype; /* host address type */ | |
| 20 | int h_length; /* length of address */ | |
| be3764b5 | 21 | char **h_addr_list; /* list of addresses from name server */ |
| 84156e4e | 22 | #define h_addr h_addr_list[0] /* address, for backward compatiblity */ |
| f3ac96de SL |
23 | }; |
| 24 | ||
| 25 | /* | |
| 26 | * Assumption here is that a network number | |
| 27 | * fits in 32 bits -- probably a poor one. | |
| 28 | */ | |
| 29 | struct netent { | |
| 30 | char *n_name; /* official name of net */ | |
| 31 | char **n_aliases; /* alias list */ | |
| 32 | int n_addrtype; /* net address type */ | |
| 33 | int n_net; /* network # */ | |
| 34 | }; | |
| 35 | ||
| 36 | struct servent { | |
| 37 | char *s_name; /* official service name */ | |
| 38 | char **s_aliases; /* alias list */ | |
| 39 | int s_port; /* port # */ | |
| 40 | char *s_proto; /* protocol to use */ | |
| 41 | }; | |
| 42 | ||
| 43 | struct protoent { | |
| 44 | char *p_name; /* official protocol name */ | |
| 45 | char **p_aliases; /* alias list */ | |
| 46 | int p_proto; /* protocol # */ | |
| 47 | }; | |
| 48 | ||
| 49 | struct hostent *gethostbyname(), *gethostbyaddr(), *gethostent(); | |
| 50 | struct netent *getnetbyname(), *getnetbyaddr(), *getnetent(); | |
| 51 | struct servent *getservbyname(), *getservbyport(), *getservent(); | |
| 52 | struct protoent *getprotobyname(), *getprotobynumber(), *getprotoent(); | |
| c0bcfdb1 KD |
53 | |
| 54 | /* | |
| 55 | * Error return codes from gethostbyname() and gethostbyaddr() | |
| 56 | */ | |
| 57 | ||
| 58 | extern int h_errno; | |
| 59 | ||
| 60 | #define HOST_NOT_FOUND 1 /* Authoritive Answer Host not found */ | |
| 61 | #define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */ | |
| 62 | #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ | |
| d492c426 | 63 | #define NO_ADDRESS 4 /* Valid host name, no address, look for MF record */ |