/*
 * 5799-WZQ (C) COPYRIGHT = NONE
 * LICENSED MATERIALS - PROPERTY OF IBM
 */
/* $Header:netdb.h 12.0$ */
/* $ACIS:netdb.h 12.0$ */
/* $Source: /ibm/acis/usr/src/include/RCS/netdb.h,v $ */

#if !defined(lint) && !defined(LOCORE) && defined(RCS_HDRS)
static char *rcsidnetdb = "$Header:netdb.h 12.0$";
#endif

#include <sys/nfs_defines.h>

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)netdb.h	5.7 (Berkeley) 5/12/86
 */

#ifdef NFS
/* /* @(#)netdb.h	1.2 87/07/17 3.2/4.3NFSSRC */
#endif NFS
/*
 * 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 # */
};

#ifdef NFS
struct rpcent {
	char	*r_name;	/* name of server for this rpc program */
	char	**r_aliases;	/* alias list */
	int	r_number;	/* rpc program number */
};
#endif NFS
struct hostent	*gethostbyname(), *gethostbyaddr(), *gethostent();
struct netent	*getnetbyname(), *getnetbyaddr(), *getnetent();
struct servent	*getservbyname(), *getservbyport(), *getservent();
struct protoent	*getprotobyname(), *getprotobynumber(), *getprotoent();
#ifdef NFS
struct rpcent	*getrpcbyname(), *getrpcbynumber(), *getrpcent();
#endif NFS

/*
 * Error return codes from gethostbyname() and gethostbyaddr()
 */

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_ADDRESS	4 /* Valid host name, no address, look for MX record */
