1/*
2 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef HAVE_GETADDRINFO
31
32/*
33 * Error return codes from getaddrinfo()
34 */
35#define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */
36#define	EAI_AGAIN	 2	/* temporary failure in name resolution */
37#define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */
38#define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */
39#define	EAI_FAMILY	 5	/* ai_family not supported */
40#define	EAI_MEMORY	 6	/* memory allocation failure */
41#define	EAI_NODATA	 7	/* no address associated with hostname */
42#define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */
43#define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */
44#define	EAI_SOCKTYPE	10	/* ai_socktype not supported */
45#define	EAI_SYSTEM	11	/* system error returned in errno */
46#define EAI_BADHINTS	12
47#define EAI_PROTOCOL	13
48#define EAI_MAX		14
49
50/*
51 * Flag values for getaddrinfo()
52 */
53#define	AI_PASSIVE	0x00000001 /* get address to use bind() */
54#define	AI_CANONNAME	0x00000002 /* fill ai_canonname */
55#define	AI_NUMERICHOST	0x00000004 /* prevent name resolution */
56/* valid flags for addrinfo */
57#define	AI_MASK		(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
58
59#define	AI_ALL		0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
60#define	AI_V4MAPPED_CFG	0x00000200 /* accept IPv4-mapped if kernel supports */
61#define	AI_ADDRCONFIG	0x00000400 /* only if any address is assigned */
62#define	AI_V4MAPPED	0x00000800 /* accept IPv4-mapped IPv6 address */
63/* special recommended flags for getipnodebyname */
64#define	AI_DEFAULT	(AI_V4MAPPED_CFG | AI_ADDRCONFIG)
65
66/*
67 * Constants for getnameinfo()
68 */
69#define	NI_MAXHOST	1025
70#define	NI_MAXSERV	32
71
72/*
73 * Flag values for getnameinfo()
74 */
75#define	NI_NOFQDN	0x00000001
76#define	NI_NUMERICHOST	0x00000002
77#define	NI_NAMEREQD	0x00000004
78#define	NI_NUMERICSERV	0x00000008
79#define	NI_DGRAM	0x00000010
80
81struct addrinfo {
82	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */
83	int	ai_family;	/* PF_xxx */
84	int	ai_socktype;	/* SOCK_xxx */
85	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
86	size_t	ai_addrlen;	/* length of ai_addr */
87	char	*ai_canonname;	/* canonical name for hostname */
88	struct sockaddr *ai_addr;	/* binary address */
89	struct addrinfo *ai_next;	/* next structure in linked list */
90};
91
92struct sockaddr_storage {
93	u_char __ss_len;
94	u_char __ss_family;
95	u_char fill[126];
96};
97
98extern void freehostent(struct hostent *);
99extern char *gai_strerror(int);
100#endif
101