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/*
* Copyright (c) 1980,1983,1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of California at Berkeley. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
/*
* Structures returned by network data base library.
* All addresses are supplied in host order, and
* returned in network order (suitable for use in system calls).
*/
#ifndef _netdb_h
#define _netdb_h
/* from UCB 5.9 4/5/88 */
#pragma ident "%Z%%M% %I% %E% SMI"
#define _PATH_HEQUIV "/etc/hosts.equiv"
#define _PATH_HOSTS "/etc/hosts"
#define _PATH_NETWORKS "/etc/networks"
#define _PATH_PROTOCOLS "/etc/protocols"
#define _PATH_SERVICES "/etc/services"
struct hostent {
char *h_name; /* official name of host */
char **h_aliases; /* alias list */
int h_addrtype; /* host address type */
int h_length; /* length of address */
char **h_addr_list; /* list of addresses from name server */
#define h_addr h_addr_list[0] /* address, for backward compatiblity */
};
/*
* Assumption here is that a network number
* fits in 32 bits -- probably a poor one.
*/
struct netent {
char *n_name; /* official name of net */
char **n_aliases; /* alias list */
int n_addrtype; /* net address type */
unsigned long n_net; /* network # */
};
struct servent {
char *s_name; /* official service name */
char **s_aliases; /* alias list */
int s_port; /* port # */
char *s_proto; /* protocol to use */
};
struct protoent {
char *p_name; /* official protocol name */
char **p_aliases; /* alias list */
int p_proto; /* protocol # */
};
struct rpcent {
char *r_name; /* name of server for this rpc program */
char **r_aliases; /* alias list */
int r_number; /* rpc program number */
};
struct hostent *gethostbyname(), *gethostbyaddr(), *gethostent();
struct netent *getnetbyname(), *getnetbyaddr(), *getnetent();
struct servent *getservbyname(), *getservbyport(), *getservent();
struct protoent *getprotobyname(), *getprotobynumber(), *getprotoent();
struct rpcent *getrpcbyname(), *getrpcbynumber(), *getrpcent();
/*
* Error return codes from gethostbyname() and gethostbyaddr()
* (when using the resolver)
*/
extern int h_errno;
#define HOST_NOT_FOUND 1 /* Authoritive Answer Host not found */
#define TRY_AGAIN 2 /* Non-Authoritive Host not found, or SERVERFAIL */
#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
#define NO_DATA 4 /* Valid name, no data record of requested type */
#define NO_ADDRESS NO_DATA /* no address, look for MX record */
#define MAXALIASES 35
#define MAXADDRS 35
#endif /*!_netdb_h*/
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