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/* $NetBSD: netdb.h,v 1.5 1995/07/03 22:59:12 jtc Exp $ */
/*-
* Copyright (c) 1980, 1983, 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)netdb.h 5.15 (Berkeley) 4/3/91
*/
#ifndef _NETDB_H_
#define _NETDB_H_
#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"
/*
* 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).
*/
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 # */
};
/*
* Error return codes from gethostbyname() and gethostbyaddr()
* (left in extern int h_errno).
*/
extern int h_errno;
#define HOST_NOT_FOUND 1 /* Authoritative 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 */
#include <sys/cdefs.h>
__BEGIN_DECLS
void endhostent __P((void));
void endnetent __P((void));
void endprotoent __P((void));
void endservent __P((void));
struct hostent *gethostbyaddr __P((const char *, int, int));
struct hostent *gethostbyname __P((const char *));
struct hostent *gethostent __P((void));
struct netent *getnetbyaddr __P((long, int)); /* u_long? */
struct netent *getnetbyname __P((const char *));
struct netent *getnetent __P((void));
struct protoent *getprotobyname __P((const char *));
struct protoent *getprotobynumber __P((int));
struct protoent *getprotoent __P((void));
struct servent *getservbyname __P((const char *, const char *));
struct servent *getservbyport __P((int, const char *));
struct servent *getservent __P((void));
void herror __P((const char *));
char *hstrerror __P((int));
void sethostent __P((int));
/* void sethostfile __P((const char *)); */
void setnetent __P((int));
void setprotoent __P((int));
void setservent __P((int));
__END_DECLS
#endif /* !_NETDB_H_ */
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