/* * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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. *//* $Id: addrinfo.h,v 1.4 2002-06-11 17:13:36 itojun Exp $ */#ifndef HAVE_ADDRINFO/* * Error return codes from getaddrinfo() */#define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */#define	EAI_AGAIN	 2	/* temporary failure in name resolution */#define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */#define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */#define	EAI_FAMILY	 5	/* ai_family not supported */#define	EAI_MEMORY	 6	/* memory allocation failure */#define	EAI_NODATA	 7	/* no address associated with hostname */#define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */#define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */#define	EAI_SOCKTYPE	10	/* ai_socktype not supported */#define	EAI_SYSTEM	11	/* system error returned in errno */#define EAI_BADHINTS	12#define EAI_PROTOCOL	13#define EAI_MAX		14/* internal error */#define	NETDB_INTERNAL	-1	/* see errno *//* * Flag values for getaddrinfo() */#define	AI_PASSIVE	0x00000001 /* get address to use bind() */#define	AI_CANONNAME	0x00000002 /* fill ai_canonname */#define	AI_NUMERICHOST	0x00000004 /* prevent name resolution *//* valid flags for addrinfo */#define	AI_MASK		(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)#define	AI_ALL		0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */#define	AI_V4MAPPED_CFG	0x00000200 /* accept IPv4-mapped if kernel supports */#define	AI_ADDRCONFIG	0x00000400 /* only if any address is assigned */#define	AI_V4MAPPED	0x00000800 /* accept IPv4-mapped IPv6 address *//* special recommended flags for getipnodebyname */#define	AI_DEFAULT	(AI_V4MAPPED_CFG | AI_ADDRCONFIG)struct addrinfo {	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */	int	ai_family;	/* PF_xxx */	int	ai_socktype;	/* SOCK_xxx */	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */	size_t	ai_addrlen;	/* length of ai_addr */	char	*ai_canonname;	/* canonical name for hostname */	struct sockaddr *ai_addr;	/* binary address */	struct addrinfo *ai_next;	/* next structure in linked list */};extern void freeaddrinfo (struct addrinfo *);extern void freehostent (struct hostent *);extern char *gai_strerror (int);extern int getaddrinfo (const char *, const char *,			    const struct addrinfo *, struct addrinfo **);extern int getnameinfo (const struct sockaddr *, size_t, char *,			    size_t, char *, size_t, int);extern struct hostent *getipnodebyaddr (const void *, size_t, int, int *);extern struct hostent *getipnodebyname (const char *, int, int, int *);extern int inet_pton (int, const char *, void *);extern const char *inet_ntop (int, const void *, char *, size_t);#endif /* HAVE_ADDRINFO *//* * Constants for getnameinfo() */#ifndef NI_MAXHOST#define	NI_MAXHOST	1025#endif#ifndef NI_MAXSERV#define	NI_MAXSERV	32#endif/* * Flag values for getnameinfo() */#ifndef NI_NOFQDN#define	NI_NOFQDN	0x00000001#endif#ifndef NI_NUMERICHOST#define	NI_NUMERICHOST	0x00000002#endif#ifndef NI_NAMEREQD#define	NI_NAMEREQD	0x00000004#endif#ifndef NI_NUMERICSERV#define	NI_NUMERICSERV	0x00000008#endif#ifndef NI_DGRAM#define	NI_DGRAM	0x00000010#endif