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/Modules/addrinfo.h

http://unladen-swallow.googlecode.com/
C++ Header | 176 lines | 112 code | 16 blank | 48 comment | 0 complexity | 3dc98b497266c44d3791985cce88e030 MD5 | raw file
  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
127struct 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#ifdef HAVE_LONG_LONG
145#define _SS_ALIGNSIZE	(sizeof(PY_LONG_LONG))
146#else
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)
152
153struct sockaddr_storage {
154#ifdef HAVE_SOCKADDR_SA_LEN
155	unsigned char ss_len;		/* address length */
156	unsigned char ss_family;	/* address family */
157#else
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 */
163#else
164	double __ss_align;	/* force desired structure storage alignment */
165#endif /* HAVE_LONG_LONG */
166	char	__ss_pad2[_SS_PAD2SIZE];
167};
168#endif /* !HAVE_SOCKADDR_STORAGE */
169
170#ifdef __cplusplus
171extern "C" {
172#endif
173extern void freehostent Py_PROTO((struct hostent *));
174#ifdef __cplusplus
175}
176#endif