forked from bonzini/smalltalk
/
getaddrinfo.h
167 lines (146 loc) · 6.05 KB
/
getaddrinfo.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
/* Get address information.
Copyright (C) 1996-2002, 2003, 2004, 2005, 2006, 2008, 2009
Free Software Foundation, Inc.
Contributed by Simon Josefsson <simon@josefsson.org>.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef GETADDRINFO_H
#define GETADDRINFO_H
/* sys/socket.h in i386-unknown-freebsd4.10 and
powerpc-apple-darwin5.5 require sys/types.h, so include it first.
Then we'll also get 'socklen_t' and 'struct sockaddr' which are
used below. */
#include <sys/types.h>
/* Get all getaddrinfo related declarations, if available. */
#if !(defined WIN32 || defined _WIN32) || defined __CYGWIN__
# include <sys/socket.h>
#else
# include <ws2tcpip.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifndef HAVE_STRUCT_ADDRINFO
/* Structure to contain information about address of a service provider. */
struct addrinfo
{
int ai_flags; /* Input flags. */
int ai_family; /* Protocol family for socket. */
int ai_socktype; /* Socket type. */
int ai_protocol; /* Protocol for socket. */
socklen_t ai_addrlen; /* Length of socket address. */
struct sockaddr *ai_addr; /* Socket address for socket. */
char *ai_canonname; /* Canonical name for service location. */
struct addrinfo *ai_next; /* Pointer to next in list. */
};
#endif
/* Possible values for `ai_flags' field in `addrinfo' structure. */
#ifndef AI_PASSIVE
# define AI_PASSIVE 0x0001 /* Socket address is intended for `bind'. */
#endif
#ifndef AI_CANONNAME
# define AI_CANONNAME 0x0002 /* Request for canonical name. */
#endif
#ifndef AI_NUMERICSERV
# define AI_NUMERICSERV 0x0400 /* Don't use name resolution. */
#endif
#if 0
/* The commented out definitions below are not yet implemented in the
GNULIB getaddrinfo() replacement, so are not yet needed and may, in fact,
cause conflicts on systems with a getaddrinfo() function which does not
define them.
If they are restored, be sure to protect the definitions with #ifndef. */
#define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */
#define AI_V4MAPPED 0x0008 /* IPv4 mapped addresses are acceptable. */
#define AI_ALL 0x0010 /* Return IPv4 mapped and IPv6 addresses. */
#define AI_ADDRCONFIG 0x0020 /* Use configuration of this host to choose
returned address type.. */
#endif /* 0 */
/* Error values for `getaddrinfo' function. */
#ifndef EAI_BADFLAGS
# define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */
# define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
# define EAI_AGAIN -3 /* Temporary failure in name resolution. */
# define EAI_FAIL -4 /* Non-recoverable failure in name res. */
# define EAI_NODATA -5 /* No address associated with NAME. */
# define EAI_FAMILY -6 /* `ai_family' not supported. */
# define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */
# define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */
# define EAI_MEMORY -10 /* Memory allocation failure. */
#endif
/* Since EAI_NODATA is deprecated by RFC3493, some systems (at least
FreeBSD, which does define EAI_BADFLAGS) have removed the definition
in favor of EAI_NONAME. */
#if !defined EAI_NODATA && defined EAI_NONAME
# define EAI_NODATA EAI_NONAME
#endif
#ifndef EAI_OVERFLOW
/* Not defined on mingw32. */
# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
#endif
#ifndef EAI_ADDRFAMILY
/* Not defined on mingw32. */
# define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */
#endif
#ifndef EAI_SYSTEM
/* Not defined on mingw32. */
# define EAI_SYSTEM -11 /* System error returned in `errno'. */
#endif
#ifdef __USE_GNU
# ifndef EAI_INPROGRESS
# define EAI_INPROGRESS -100 /* Processing request in progress. */
# define EAI_CANCELED -101 /* Request canceled. */
# define EAI_NOTCANCELED -102 /* Request not canceled. */
# define EAI_ALLDONE -103 /* All requests done. */
# define EAI_INTR -104 /* Interrupted by a signal. */
# define EAI_IDN_ENCODE -105 /* IDN encoding failed. */
# endif
#endif
#if !HAVE_DECL_GETADDRINFO
/* Translate name of a service location and/or a service name to set of
socket addresses.
For more details, see the POSIX:2001 specification
<http://www.opengroup.org/susv3xsh/getaddrinfo.html>. */
extern int getaddrinfo (const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res);
#endif
#if !HAVE_DECL_FREEADDRINFO
/* Free `addrinfo' structure AI including associated storage.
For more details, see the POSIX:2001 specification
<http://www.opengroup.org/susv3xsh/getaddrinfo.html>. */
extern void freeaddrinfo (struct addrinfo *ai);
#endif
#if !HAVE_DECL_GAI_STRERROR
/* Convert error return from getaddrinfo() to a string.
For more details, see the POSIX:2001 specification
<http://www.opengroup.org/susv3xsh/gai_strerror.html>. */
extern const char *gai_strerror (int ecode);
#endif
#if !HAVE_DECL_GETNAMEINFO
/* Convert socket address to printable node and service names.
For more details, see the POSIX:2001 specification
<http://www.opengroup.org/susv3xsh/getnameinfo.html>. */
extern int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
char *restrict node, socklen_t nodelen,
char *restrict service, socklen_t servicelen,
int flags);
#endif
/* Possible flags for getnameinfo. */
#ifndef NI_NUMERICHOST
# define NI_NUMERICHOST 1
#endif
#ifndef NI_NUMERICSERV
# define NI_NUMERICSERV 2
#endif
#endif /* GETADDRINFO_H */