xref: /freebsd/crypto/openssh/openbsd-compat/fake-rfc2553.h (revision 74bf4e164ba5851606a27d4feff27717452583e5)
1 /* $FreeBSD$ */
2 /* $Id: fake-rfc2553.h,v 1.8 2004/02/10 02:05:41 dtucker Exp $ */
3 
4 /*
5  * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
6  * Copyright (C) 1999 WIDE Project.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the project nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 /*
34  * Pseudo-implementation of RFC2553 name / address resolution functions
35  *
36  * But these functions are not implemented correctly. The minimum subset
37  * is implemented for ssh use only. For example, this routine assumes
38  * that ai_family is AF_INET. Don't use it for another purpose.
39  */
40 
41 #ifndef _FAKE_RFC2553_H
42 #define _FAKE_RFC2553_H
43 
44 #include "includes.h"
45 #include "sys/types.h"
46 
47 /*
48  * First, socket and INET6 related definitions
49  */
50 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
51 # define	_SS_MAXSIZE	128	/* Implementation specific max size */
52 # define       _SS_PADSIZE     (_SS_MAXSIZE - sizeof (struct sockaddr))
53 struct sockaddr_storage {
54 	struct sockaddr	ss_sa;
55 	char		__ss_pad2[_SS_PADSIZE];
56 };
57 # define ss_family ss_sa.sa_family
58 #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
59 
60 #ifndef IN6_IS_ADDR_LOOPBACK
61 # define IN6_IS_ADDR_LOOPBACK(a) \
62 	(((u_int32_t *)(a))[0] == 0 && ((u_int32_t *)(a))[1] == 0 && \
63 	 ((u_int32_t *)(a))[2] == 0 && ((u_int32_t *)(a))[3] == htonl(1))
64 #endif /* !IN6_IS_ADDR_LOOPBACK */
65 
66 #ifndef HAVE_STRUCT_IN6_ADDR
67 struct in6_addr {
68 	u_int8_t	s6_addr[16];
69 };
70 #endif /* !HAVE_STRUCT_IN6_ADDR */
71 
72 #ifndef HAVE_STRUCT_SOCKADDR_IN6
73 struct sockaddr_in6 {
74 	unsigned short	sin6_family;
75 	u_int16_t	sin6_port;
76 	u_int32_t	sin6_flowinfo;
77 	struct in6_addr	sin6_addr;
78 };
79 #endif /* !HAVE_STRUCT_SOCKADDR_IN6 */
80 
81 #ifndef AF_INET6
82 /* Define it to something that should never appear */
83 #define AF_INET6 AF_MAX
84 #endif
85 
86 /*
87  * Next, RFC2553 name / address resolution API
88  */
89 
90 #ifndef NI_NUMERICHOST
91 # define NI_NUMERICHOST    (1)
92 #endif
93 #ifndef NI_NAMEREQD
94 # define NI_NAMEREQD       (1<<1)
95 #endif
96 #ifndef NI_NUMERICSERV
97 # define NI_NUMERICSERV    (1<<2)
98 #endif
99 
100 #ifndef AI_PASSIVE
101 # define AI_PASSIVE		(1)
102 #endif
103 #ifndef AI_CANONNAME
104 # define AI_CANONNAME		(1<<1)
105 #endif
106 #ifndef AI_NUMERICHOST
107 # define AI_NUMERICHOST		(1<<2)
108 #endif
109 
110 #ifndef NI_MAXSERV
111 # define NI_MAXSERV 32
112 #endif /* !NI_MAXSERV */
113 #ifndef NI_MAXHOST
114 # define NI_MAXHOST 1025
115 #endif /* !NI_MAXHOST */
116 
117 #ifndef EAI_NONAME
118 # define EAI_NODATA	1
119 # define EAI_MEMORY	2
120 # define EAI_NONAME	3
121 #endif
122 
123 #ifndef HAVE_STRUCT_ADDRINFO
124 struct addrinfo {
125 	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */
126 	int	ai_family;	/* PF_xxx */
127 	int	ai_socktype;	/* SOCK_xxx */
128 	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
129 	size_t	ai_addrlen;	/* length of ai_addr */
130 	char	*ai_canonname;	/* canonical name for hostname */
131 	struct sockaddr *ai_addr;	/* binary address */
132 	struct addrinfo *ai_next;	/* next structure in linked list */
133 };
134 #endif /* !HAVE_STRUCT_ADDRINFO */
135 
136 #ifndef HAVE_GETADDRINFO
137 #ifdef getaddrinfo
138 # undef getaddrinfo
139 #endif
140 #define getaddrinfo(a,b,c,d)	(ssh_getaddrinfo(a,b,c,d))
141 int getaddrinfo(const char *, const char *,
142     const struct addrinfo *, struct addrinfo **);
143 #endif /* !HAVE_GETADDRINFO */
144 
145 #if !defined(HAVE_GAI_STRERROR) && !defined(HAVE_CONST_GAI_STRERROR_PROTO)
146 #define gai_strerror(a)		(ssh_gai_strerror(a))
147 char *gai_strerror(int);
148 #endif /* !HAVE_GAI_STRERROR */
149 
150 #ifndef HAVE_FREEADDRINFO
151 #define freeaddrinfo(a)		(ssh_freeaddrinfo(a))
152 void freeaddrinfo(struct addrinfo *);
153 #endif /* !HAVE_FREEADDRINFO */
154 
155 #ifndef HAVE_GETNAMEINFO
156 #define getnameinfo(a,b,c,d,e,f,g) (ssh_getnameinfo(a,b,c,d,e,f,g))
157 int getnameinfo(const struct sockaddr *, size_t, char *, size_t,
158     char *, size_t, int);
159 #endif /* !HAVE_GETNAMEINFO */
160 
161 #endif /* !_FAKE_RFC2553_H */
162 
163