#ifndef __NETDB_H__#define __NETDB_H__ #ifndef _BSD_EXTENSION    This header file is an extension to ANSI/POSIX#endif #pragma lib "/$M/lib/ape/libbsd.a" /*- * 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: (1) source distributions retain this entire copyright * notice and comment, and (2) distributions including binaries display * the following acknowledgement:  ``This product includes software * developed by the University of California, Berkeley and its contributors'' * in the documentation or other materials provided with the distribution * and in all advertising materials mentioning features or use of this * software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * *	@(#)netdb.h	5.11 (Berkeley) 5/21/90 */ #ifdef __cplusplusextern "C" {#endif /* * 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 # */}; /* from 4.0 RPCSRC */struct rpcent {	char	*r_name;	/* name of server for this rpc program */	char	**r_aliases;	/* alias list */	int	r_number;	/* rpc program number */}; extern struct hostent	*gethostbyname(const char *),			*gethostbyaddr(const void *, int, int),			*gethostent(void);extern struct netent	*getnetbyname(const char *),			*getnetbyaddr(long, int),			*getnetent(void);extern struct servent	*getservbyname(const char *, const char *),			*getservbyport(int, const char *),			*getservent(void);extern struct protoent	*getprotobyname(const char *),			*getprotobynumber(int),			*getprotoent(void);extern struct rpcent	*getrpcbyname(const char *), 			*getrpcbynumber(int), 			*getrpcent(void);extern void sethostent(int),  endhostent(void),	    setnetent(int),   endnetent(void),	    setservent(int),  endservent(void),	    setprotoent(int), endprotoent(void),	    setrpcent(int),   endrpcent(void); /* * Error return codes from gethostbyname() and gethostbyaddr() * (left in extern int h_errno). */extern int h_errno;extern void herror(const char *);extern char *hstrerror(int); #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 */ #define __HOST_SVC_NOT_AVAIL 99		/* libc internal use only */ enum {	AI_PASSIVE		= 0x01,	AI_CANONNAME	= 0x02,	AI_NUMERICHOST	= 0x04,		/* ignored */	AI_V4MAPPED		= 0x08,	AI_ALL			= 0x10,		/* ignored */	AI_ADDRCONFIG	= 0x20,		/* ignored */	AI_NUMERICSERV	= 0x400,}; #define	AI_PASSIVE		AI_PASSIVE#define	AI_CANONNAME	AI_CANONNAME#define	AI_NUMERICHOST	AI_NUMERICHOST#define	AI_V4MAPPED		AI_V4MAPPED#define	AI_ALL			AI_ALL#define	AI_ADDRCONFIG	AI_ADDRCONFIG#define	AI_NUMERICSERV	AI_NUMERICSERV enum {	EAI_BADFLAGS	= -1,	EAI_NONAME		= -2,	EAI_AGAIN		= -3,	EAI_FAIL		= -4,	EAI_FAMILY		= -6,	EAI_SOCKTYPE		= -7,	EAI_SERVICE		= -8,	EAI_MEMORY		= -10,	EAI_SYSTEM		= -11,	EAI_OVERFLOW	= -12,};#define	EAI_BADFLAGS	EAI_BADFLAGS#define	EAI_NONAME		EAI_NONAME#define	EAI_AGAIN		EAI_AGAIN#define	EAI_FAIL		EAI_FAIL#define	EAI_FAMILY		EAI_FAMILY#define	EAI_SOCKTYPE		EAI_SOCKTYPE#define	EAI_SERVICE		EAI_SERVICE#define	EAI_MEMORY		EAI_MEMORY#define	EAI_SYSTEM		EAI_SYSTEM#define	EAI_OVERFLOW	EAI_OVERFLOW enum {	NI_NUMERICHOST	= 1<<0,	NI_NUMERICSERV	= 1<<1,	NI_NOFQDN		= 1<<2,	NI_NAMEREQD		= 1<<3,	NI_DGRAM		= 1<<4,};#define	NI_NUMERICHOST	NI_NUMERICHOST#define	NI_NUMERICSERV	NI_NUMERICSERV#define	NI_NOFQDN		NI_NOFQDN#define	NI_NAMEREQD		NI_NAMEREQD#define	NI_DGRAM		NI_DGRAM struct addrinfo {	int		ai_flags;	int		ai_family;	int		ai_socktype;	int		ai_protocol;	int		ai_addrlen;	struct sockaddr	*ai_addr;	char		*ai_canonname;	struct addrinfo	*ai_next;}; /* _SUSV2_SOURCE? */int		getaddrinfo(const char*, const char*, const struct addrinfo*, struct addrinfo**);void		freeaddrinfo(struct addrinfo *);int		getnameinfo(const struct sockaddr *, int, char*, long, char*, long, int);const char*	gai_strerror(int); #ifdef __cplusplus}#endif #endif /* !__NETDB_H__ */