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 | #ifdef EAI_ADDRFAMILY |
36 | /* If this is defined, there is a conflicting implementation |
37 | in the C library, which can't be used for some reason. |
38 | Make sure it won't interfere with this emulation. */ |
39 | |
40 | #undef EAI_ADDRFAMILY |
41 | #undef EAI_AGAIN |
42 | #undef EAI_BADFLAGS |
43 | #undef EAI_FAIL |
44 | #undef EAI_FAMILY |
45 | #undef EAI_MEMORY |
46 | #undef EAI_NODATA |
47 | #undef EAI_NONAME |
48 | #undef EAI_SERVICE |
49 | #undef EAI_SOCKTYPE |
50 | #undef EAI_SYSTEM |
51 | #undef EAI_BADHINTS |
52 | #undef EAI_PROTOCOL |
53 | #undef EAI_MAX |
54 | #undef getaddrinfo |
55 | #define getaddrinfo fake_getaddrinfo |
56 | #endif /* EAI_ADDRFAMILY */ |
57 | |
58 | #define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ |
59 | #define EAI_AGAIN 2 /* temporary failure in name resolution */ |
60 | #define EAI_BADFLAGS 3 /* invalid value for ai_flags */ |
61 | #define EAI_FAIL 4 /* non-recoverable failure in name resolution */ |
62 | #define EAI_FAMILY 5 /* ai_family not supported */ |
63 | #define EAI_MEMORY 6 /* memory allocation failure */ |
64 | #define EAI_NODATA 7 /* no address associated with hostname */ |
65 | #define EAI_NONAME 8 /* hostname nor servname provided, or not known */ |
66 | #define EAI_SERVICE 9 /* servname not supported for ai_socktype */ |
67 | #define EAI_SOCKTYPE 10 /* ai_socktype not supported */ |
68 | #define EAI_SYSTEM 11 /* system error returned in errno */ |
69 | #define EAI_BADHINTS 12 |
70 | #define EAI_PROTOCOL 13 |
71 | #define EAI_MAX 14 |
72 | |
73 | /* |
74 | * Flag values for getaddrinfo() |
75 | */ |
76 | #ifdef AI_PASSIVE |
77 | #undef AI_PASSIVE |
78 | #undef AI_CANONNAME |
79 | #undef AI_NUMERICHOST |
80 | #undef AI_MASK |
81 | #undef AI_ALL |
82 | #undef AI_V4MAPPED_CFG |
83 | #undef AI_ADDRCONFIG |
84 | #undef AI_V4MAPPED |
85 | #undef AI_DEFAULT |
86 | #endif /* AI_PASSIVE */ |
87 | |
88 | #define AI_PASSIVE 0x00000001 /* get address to use bind() */ |
89 | #define AI_CANONNAME 0x00000002 /* fill ai_canonname */ |
90 | #define AI_NUMERICHOST 0x00000004 /* prevent name resolution */ |
91 | /* valid flags for addrinfo */ |
92 | #define AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST) |
93 | |
94 | #define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */ |
95 | #define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */ |
96 | #define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ |
97 | #define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */ |
98 | /* special recommended flags for getipnodebyname */ |
99 | #define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG) |
100 | |
101 | #endif /* !HAVE_GETADDRINFO */ |
102 | |
103 | #ifndef HAVE_GETNAMEINFO |
104 | |
105 | /* |
106 | * Constants for getnameinfo() |
107 | */ |
108 | #ifndef NI_MAXHOST |
109 | #define NI_MAXHOST 1025 |
110 | #define NI_MAXSERV 32 |
111 | #endif /* !NI_MAXHOST */ |
112 | |
113 | /* |
114 | * Flag values for getnameinfo() |
115 | */ |
116 | #ifndef NI_NOFQDN |
117 | #define NI_NOFQDN 0x00000001 |
118 | #define NI_NUMERICHOST 0x00000002 |
119 | #define NI_NAMEREQD 0x00000004 |
120 | #define NI_NUMERICSERV 0x00000008 |
121 | #define NI_DGRAM 0x00000010 |
122 | #endif /* !NI_NOFQDN */ |
123 | |
124 | #endif /* !HAVE_GETNAMEINFO */ |
125 | |
126 | #ifndef HAVE_ADDRINFO |
127 | struct addrinfo { |
128 | int ai_flags; /* AI_PASSIVE, AI_CANONNAME */ |
129 | int ai_family; /* PF_xxx */ |
130 | int ai_socktype; /* SOCK_xxx */ |
131 | int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ |
132 | size_t ai_addrlen; /* length of ai_addr */ |
133 | char *ai_canonname; /* canonical name for hostname */ |
134 | struct sockaddr *ai_addr; /* binary address */ |
135 | struct addrinfo *ai_next; /* next structure in linked list */ |
136 | }; |
137 | #endif /* !HAVE_ADDRINFO */ |
138 | |
139 | #ifndef HAVE_SOCKADDR_STORAGE |
140 | /* |
141 | * RFC 2553: protocol-independent placeholder for socket addresses |
142 | */ |
143 | #define _SS_MAXSIZE 128 |
144 | #define _SS_ALIGNSIZE (sizeof(long long)) |
145 | #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) * 2) |
146 | #define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) * 2 - \ |
147 | _SS_PAD1SIZE - _SS_ALIGNSIZE) |
148 | |
149 | struct sockaddr_storage { |
150 | #ifdef HAVE_SOCKADDR_SA_LEN |
151 | unsigned char ss_len; /* address length */ |
152 | unsigned char ss_family; /* address family */ |
153 | #else |
154 | unsigned short ss_family; /* address family */ |
155 | #endif /* HAVE_SOCKADDR_SA_LEN */ |
156 | char __ss_pad1[_SS_PAD1SIZE]; |
157 | long long __ss_align; /* force desired structure storage alignment */ |
158 | char __ss_pad2[_SS_PAD2SIZE]; |
159 | }; |
160 | #endif /* !HAVE_SOCKADDR_STORAGE */ |
161 | |
162 | #ifdef __cplusplus |
163 | extern "C" { |
164 | #endif |
165 | extern void freehostent(struct hostent *); |
166 | #ifdef __cplusplus |
167 | } |
168 | #endif |
169 | |