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2274ae66 | 1 | /* $Id$ */ |
2 | ||
f5827134 | 3 | /* |
4 | * Copyright (C) 2000-2003 Damien Miller. All rights reserved. | |
5 | * Copyright (C) 1999 WIDE Project. All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * 1. Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * 3. Neither the name of the project nor the names of its contributors | |
16 | * may be used to endorse or promote products derived from this software | |
17 | * without specific prior written permission. | |
18 | * | |
19 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND | |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE | |
23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
29 | * SUCH DAMAGE. | |
30 | */ | |
31 | ||
52d58495 | 32 | /* |
33 | * Pseudo-implementation of RFC2553 name / address resolution functions | |
34 | * | |
35 | * But these functions are not implemented correctly. The minimum subset | |
5e24e4a5 | 36 | * is implemented for ssh use only. For example, this routine assumes |
52d58495 | 37 | * that ai_family is AF_INET. Don't use it for another purpose. |
38 | */ | |
39 | ||
52d58495 | 40 | #ifndef _FAKE_RFC2553_H |
41 | #define _FAKE_RFC2553_H | |
42 | ||
43 | #include "includes.h" | |
c8dfff33 | 44 | #include <sys/types.h> |
45 | #if defined(HAVE_NETDB_H) | |
46 | # include <netdb.h> | |
47 | #endif | |
52d58495 | 48 | |
49 | /* | |
50 | * First, socket and INET6 related definitions | |
51 | */ | |
52 | #ifndef HAVE_STRUCT_SOCKADDR_STORAGE | |
53 | # define _SS_MAXSIZE 128 /* Implementation specific max size */ | |
54 | # define _SS_PADSIZE (_SS_MAXSIZE - sizeof (struct sockaddr)) | |
55 | struct sockaddr_storage { | |
56 | struct sockaddr ss_sa; | |
57 | char __ss_pad2[_SS_PADSIZE]; | |
58 | }; | |
59 | # define ss_family ss_sa.sa_family | |
60 | #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */ | |
61 | ||
62 | #ifndef IN6_IS_ADDR_LOOPBACK | |
63 | # define IN6_IS_ADDR_LOOPBACK(a) \ | |
64 | (((u_int32_t *)(a))[0] == 0 && ((u_int32_t *)(a))[1] == 0 && \ | |
65 | ((u_int32_t *)(a))[2] == 0 && ((u_int32_t *)(a))[3] == htonl(1)) | |
66 | #endif /* !IN6_IS_ADDR_LOOPBACK */ | |
67 | ||
68 | #ifndef HAVE_STRUCT_IN6_ADDR | |
69 | struct in6_addr { | |
70 | u_int8_t s6_addr[16]; | |
71 | }; | |
72 | #endif /* !HAVE_STRUCT_IN6_ADDR */ | |
73 | ||
74 | #ifndef HAVE_STRUCT_SOCKADDR_IN6 | |
75 | struct sockaddr_in6 { | |
76 | unsigned short sin6_family; | |
77 | u_int16_t sin6_port; | |
78 | u_int32_t sin6_flowinfo; | |
79 | struct in6_addr sin6_addr; | |
8d910a98 | 80 | u_int32_t sin6_scope_id; |
52d58495 | 81 | }; |
82 | #endif /* !HAVE_STRUCT_SOCKADDR_IN6 */ | |
83 | ||
84 | #ifndef AF_INET6 | |
85 | /* Define it to something that should never appear */ | |
86 | #define AF_INET6 AF_MAX | |
87 | #endif | |
88 | ||
89 | /* | |
90 | * Next, RFC2553 name / address resolution API | |
91 | */ | |
92 | ||
93 | #ifndef NI_NUMERICHOST | |
94 | # define NI_NUMERICHOST (1) | |
3095daf7 | 95 | #endif |
96 | #ifndef NI_NAMEREQD | |
52d58495 | 97 | # define NI_NAMEREQD (1<<1) |
3095daf7 | 98 | #endif |
99 | #ifndef NI_NUMERICSERV | |
52d58495 | 100 | # define NI_NUMERICSERV (1<<2) |
101 | #endif | |
3095daf7 | 102 | |
52d58495 | 103 | #ifndef AI_PASSIVE |
104 | # define AI_PASSIVE (1) | |
3095daf7 | 105 | #endif |
106 | #ifndef AI_CANONNAME | |
52d58495 | 107 | # define AI_CANONNAME (1<<1) |
3095daf7 | 108 | #endif |
109 | #ifndef AI_NUMERICHOST | |
52d58495 | 110 | # define AI_NUMERICHOST (1<<2) |
111 | #endif | |
112 | ||
113 | #ifndef NI_MAXSERV | |
114 | # define NI_MAXSERV 32 | |
115 | #endif /* !NI_MAXSERV */ | |
116 | #ifndef NI_MAXHOST | |
117 | # define NI_MAXHOST 1025 | |
118 | #endif /* !NI_MAXHOST */ | |
119 | ||
120 | #ifndef EAI_NODATA | |
adb40e59 | 121 | # define EAI_NODATA (INT_MAX - 1) |
45b12bc8 | 122 | #endif |
123 | #ifndef EAI_MEMORY | |
adb40e59 | 124 | # define EAI_MEMORY (INT_MAX - 2) |
45b12bc8 | 125 | #endif |
126 | #ifndef EAI_NONAME | |
adb40e59 | 127 | # define EAI_NONAME (INT_MAX - 3) |
45b12bc8 | 128 | #endif |
129 | #ifndef EAI_SYSTEM | |
adb40e59 | 130 | # define EAI_SYSTEM (INT_MAX - 4) |
52d58495 | 131 | #endif |
132 | ||
133 | #ifndef HAVE_STRUCT_ADDRINFO | |
134 | struct addrinfo { | |
135 | int ai_flags; /* AI_PASSIVE, AI_CANONNAME */ | |
136 | int ai_family; /* PF_xxx */ | |
137 | int ai_socktype; /* SOCK_xxx */ | |
138 | int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ | |
139 | size_t ai_addrlen; /* length of ai_addr */ | |
140 | char *ai_canonname; /* canonical name for hostname */ | |
141 | struct sockaddr *ai_addr; /* binary address */ | |
142 | struct addrinfo *ai_next; /* next structure in linked list */ | |
143 | }; | |
144 | #endif /* !HAVE_STRUCT_ADDRINFO */ | |
145 | ||
146 | #ifndef HAVE_GETADDRINFO | |
31863e02 | 147 | #ifdef getaddrinfo |
148 | # undef getaddrinfo | |
149 | #endif | |
1c46f905 | 150 | #define getaddrinfo(a,b,c,d) (ssh_getaddrinfo(a,b,c,d)) |
52d58495 | 151 | int getaddrinfo(const char *, const char *, |
152 | const struct addrinfo *, struct addrinfo **); | |
153 | #endif /* !HAVE_GETADDRINFO */ | |
154 | ||
1a086f97 | 155 | #if !defined(HAVE_GAI_STRERROR) && !defined(HAVE_CONST_GAI_STRERROR_PROTO) |
2db5d1e9 | 156 | #define gai_strerror(a) (_ssh_compat_gai_strerror(a)) |
52d58495 | 157 | char *gai_strerror(int); |
158 | #endif /* !HAVE_GAI_STRERROR */ | |
159 | ||
160 | #ifndef HAVE_FREEADDRINFO | |
1c46f905 | 161 | #define freeaddrinfo(a) (ssh_freeaddrinfo(a)) |
52d58495 | 162 | void freeaddrinfo(struct addrinfo *); |
163 | #endif /* !HAVE_FREEADDRINFO */ | |
164 | ||
165 | #ifndef HAVE_GETNAMEINFO | |
1c46f905 | 166 | #define getnameinfo(a,b,c,d,e,f,g) (ssh_getnameinfo(a,b,c,d,e,f,g)) |
52d58495 | 167 | int getnameinfo(const struct sockaddr *, size_t, char *, size_t, |
168 | char *, size_t, int); | |
169 | #endif /* !HAVE_GETNAMEINFO */ | |
170 | ||
171 | #endif /* !_FAKE_RFC2553_H */ | |
172 |