mirror of
https://github.com/python/cpython.git
synced 2024-11-26 03:14:27 +08:00
01dfdb3d35
Contributed by Jun-ichiro "itojun" Hagino. get{addr,name}info emulation
code taken from WIDE.
141 lines
4.8 KiB
C
141 lines
4.8 KiB
C
/*
|
|
* Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the project nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef HAVE_GETADDRINFO
|
|
|
|
/*
|
|
* Error return codes from getaddrinfo()
|
|
*/
|
|
#ifndef EAI_ADDRFAMILY
|
|
#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
|
|
#define EAI_AGAIN 2 /* temporary failure in name resolution */
|
|
#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
|
|
#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
|
|
#define EAI_FAMILY 5 /* ai_family not supported */
|
|
#define EAI_MEMORY 6 /* memory allocation failure */
|
|
#define EAI_NODATA 7 /* no address associated with hostname */
|
|
#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
|
|
#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
|
|
#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
|
|
#define EAI_SYSTEM 11 /* system error returned in errno */
|
|
#define EAI_BADHINTS 12
|
|
#define EAI_PROTOCOL 13
|
|
#define EAI_MAX 14
|
|
#endif
|
|
|
|
/*
|
|
* Flag values for getaddrinfo()
|
|
*/
|
|
#ifndef AI_PASSIVE
|
|
#define AI_PASSIVE 0x00000001 /* get address to use bind() */
|
|
#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
|
|
#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */
|
|
/* valid flags for addrinfo */
|
|
#define AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
|
|
|
|
#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
|
|
#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
|
|
#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
|
|
#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */
|
|
/* special recommended flags for getipnodebyname */
|
|
#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG)
|
|
#endif
|
|
|
|
/*
|
|
* Constants for getnameinfo()
|
|
*/
|
|
#ifndef NI_MAXHOST
|
|
#define NI_MAXHOST 1025
|
|
#define NI_MAXSERV 32
|
|
#endif
|
|
|
|
/*
|
|
* Flag values for getnameinfo()
|
|
*/
|
|
#ifndef NI_NOFQDN
|
|
#define NI_NOFQDN 0x00000001
|
|
#define NI_NUMERICHOST 0x00000002
|
|
#define NI_NAMEREQD 0x00000004
|
|
#define NI_NUMERICSERV 0x00000008
|
|
#define NI_DGRAM 0x00000010
|
|
#endif
|
|
|
|
#ifndef HAVE_ADDRINFO
|
|
struct addrinfo {
|
|
int ai_flags; /* AI_PASSIVE, AI_CANONNAME */
|
|
int ai_family; /* PF_xxx */
|
|
int ai_socktype; /* SOCK_xxx */
|
|
int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
|
|
size_t ai_addrlen; /* length of ai_addr */
|
|
char *ai_canonname; /* canonical name for hostname */
|
|
struct sockaddr *ai_addr; /* binary address */
|
|
struct addrinfo *ai_next; /* next structure in linked list */
|
|
};
|
|
#endif
|
|
|
|
#ifndef HAVE_SOCKADDR_STORAGE
|
|
/*
|
|
* RFC 2553: protocol-independent placeholder for socket addresses
|
|
*/
|
|
#define _SS_MAXSIZE 128
|
|
#ifdef HAVE_LONG_LONG
|
|
#define _SS_ALIGNSIZE (sizeof(long long))
|
|
#else
|
|
#define _SS_ALIGNSIZE (sizeof(double))
|
|
#endif
|
|
#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) * 2)
|
|
#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) * 2 - \
|
|
_SS_PAD1SIZE - _SS_ALIGNSIZE)
|
|
|
|
struct sockaddr_storage {
|
|
#ifdef HAVE_SOCKADDR_SA_LEN
|
|
unsigned char ss_len; /* address length */
|
|
unsigned char ss_family; /* address family */
|
|
#else
|
|
unsigned short ss_family; /* address family */
|
|
#endif
|
|
char __ss_pad1[_SS_PAD1SIZE];
|
|
#ifdef HAVE_LONG_LONG
|
|
long long __ss_align; /* force desired structure storage alignment */
|
|
#else
|
|
double __ss_align; /* force desired structure storage alignment */
|
|
#endif
|
|
char __ss_pad2[_SS_PAD2SIZE];
|
|
};
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
extern void freehostent Py_PROTO((struct hostent *));
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|