2
* Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions
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.
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
30
#ifndef HAVE_GETADDRINFO
33
* Error return codes from getaddrinfo()
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. */
55
#define getaddrinfo fake_getaddrinfo
56
#endif /* EAI_ADDRFAMILY */
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
74
* Flag values for getaddrinfo()
82
#undef AI_V4MAPPED_CFG
86
#endif /* AI_PASSIVE */
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)
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)
101
#endif /* !HAVE_GETADDRINFO */
103
#ifndef HAVE_GETNAMEINFO
106
* Constants for getnameinfo()
109
#define NI_MAXHOST 1025
110
#define NI_MAXSERV 32
111
#endif /* !NI_MAXHOST */
114
* Flag values for getnameinfo()
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 */
124
#endif /* !HAVE_GETNAMEINFO */
126
#ifndef HAVE_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 */
137
#endif /* !HAVE_ADDRINFO */
139
#ifndef HAVE_SOCKADDR_STORAGE
141
* RFC 2553: protocol-independent placeholder for socket addresses
143
#define _SS_MAXSIZE 128
144
#ifdef HAVE_LONG_LONG
145
#define _SS_ALIGNSIZE (sizeof(PY_LONG_LONG))
147
#define _SS_ALIGNSIZE (sizeof(double))
148
#endif /* HAVE_LONG_LONG */
149
#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) * 2)
150
#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) * 2 - \
151
_SS_PAD1SIZE - _SS_ALIGNSIZE)
153
struct sockaddr_storage {
154
#ifdef HAVE_SOCKADDR_SA_LEN
155
unsigned char ss_len; /* address length */
156
unsigned char ss_family; /* address family */
158
unsigned short ss_family; /* address family */
159
#endif /* HAVE_SOCKADDR_SA_LEN */
160
char __ss_pad1[_SS_PAD1SIZE];
161
#ifdef HAVE_LONG_LONG
162
PY_LONG_LONG __ss_align; /* force desired structure storage alignment */
164
double __ss_align; /* force desired structure storage alignment */
165
#endif /* HAVE_LONG_LONG */
166
char __ss_pad2[_SS_PAD2SIZE];
168
#endif /* !HAVE_SOCKADDR_STORAGE */
173
extern void freehostent(struct hostent *);