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v3.15.0a7
Modules/addrinfo.h
172 строки
6 KB
Max Bachmann
gh-114917: add support for AI_NUMERICSERV in getaddrinfo emulation (#114918)
18 мар 2025, 13:26
Не верифицирован
18 мар 2025, 13:26
3453b5c
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/* * 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() */ #ifdef EAI_ADDRFAMILY /* If this is defined, there is a conflicting implementation in the C library, which can't be used for some reason. Make sure it won't interfere with this emulation. */ #undef EAI_ADDRFAMILY #undef EAI_AGAIN #undef EAI_BADFLAGS #undef EAI_FAIL #undef EAI_FAMILY #undef EAI_MEMORY #undef EAI_NODATA #undef EAI_NONAME #undef EAI_SERVICE #undef EAI_SOCKTYPE #undef EAI_SYSTEM #undef EAI_BADHINTS #undef EAI_PROTOCOL #undef EAI_MAX #undef getaddrinfo #define getaddrinfo fake_getaddrinfo #endif /* 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 /* * Flag values for getaddrinfo() */ #ifdef AI_PASSIVE #undef AI_PASSIVE #undef AI_CANONNAME #undef AI_NUMERICHOST #undef AI_NUMERICSERV #undef AI_MASK #undef AI_ALL #undef AI_V4MAPPED_CFG #undef AI_ADDRCONFIG #undef AI_V4MAPPED #undef AI_DEFAULT #endif /* 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 */ #define AI_NUMERICSERV 0x00000008 /* prevent service resolution */ /* valid flags for addrinfo */ #define AI_MASK (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV) #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 /* !HAVE_GETADDRINFO */ #ifndef HAVE_GETNAMEINFO /* * Constants for getnameinfo() */ #ifndef NI_MAXHOST #define NI_MAXHOST 1025 #define NI_MAXSERV 32 #endif /* !NI_MAXHOST */ /* * 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 /* !NI_NOFQDN */ #endif /* !HAVE_GETNAMEINFO */ #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 /* !HAVE_ADDRINFO */ #ifndef HAVE_SOCKADDR_STORAGE /* * RFC 2553: protocol-independent placeholder for socket addresses */ #define _SS_MAXSIZE 128 #define _SS_ALIGNSIZE (sizeof(long long)) #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 /* HAVE_SOCKADDR_SA_LEN */ char __ss_pad1[_SS_PAD1SIZE]; long long __ss_align; /* force desired structure storage alignment */ char __ss_pad2[_SS_PAD2SIZE]; }; #endif /* !HAVE_SOCKADDR_STORAGE */ #ifdef __cplusplus extern "C" { #endif #ifdef ENABLE_IPV6 extern void freehostent(struct hostent *); #endif #ifdef __cplusplus } #endif