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curl/lib/curl_addrinfo.h
Isaac Boukris 1d786faee1 unix_socket: add support for abstract unix domain socket
In addition to unix domain sockets, Linux also supports an
abstract namespace which is independent of the filesystem.

In order to support it, add new CURLOPT_ABSTRACT_UNIX_SOCKET
option which uses the same storage as CURLOPT_UNIX_SOCKET_PATH
internally, along with a flag to specify abstract socket.

On non-supporting platforms, the abstract address will be
interpreted as an empty string and fail gracefully.

Also add new --abstract-unix-socket tool parameter.

Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reported-by: Chungtsun Li (typeless)
Reviewed-by: Daniel Stenberg
Reviewed-by: Peter Wu
Closes #1197
Fixes #1061
2017-01-13 16:25:20 +01:00

111 lines
3.2 KiB
C

#ifndef HEADER_CURL_ADDRINFO_H
#define HEADER_CURL_ADDRINFO_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef __VMS
# include <in.h>
# include <inet.h>
# include <stdlib.h>
#endif
/*
* Curl_addrinfo is our internal struct definition that we use to allow
* consistent internal handling of this data. We use this even when the
* system provides an addrinfo structure definition. And we use this for
* all sorts of IPv4 and IPV6 builds.
*/
struct Curl_addrinfo {
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
curl_socklen_t ai_addrlen; /* Follow rfc3493 struct addrinfo */
char *ai_canonname;
struct sockaddr *ai_addr;
struct Curl_addrinfo *ai_next;
};
typedef struct Curl_addrinfo Curl_addrinfo;
void
Curl_freeaddrinfo(Curl_addrinfo *cahead);
#ifdef HAVE_GETADDRINFO
int
Curl_getaddrinfo_ex(const char *nodename,
const char *servname,
const struct addrinfo *hints,
Curl_addrinfo **result);
#endif
Curl_addrinfo *
Curl_he2ai(const struct hostent *he, int port);
Curl_addrinfo *
Curl_ip2addr(int af, const void *inaddr, const char *hostname, int port);
Curl_addrinfo *Curl_str2addr(char *dotted, int port);
#ifdef USE_UNIX_SOCKETS
Curl_addrinfo *Curl_unix2addr(const char *path, bool *longpath, bool abstract);
#endif
#if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO) && \
defined(HAVE_FREEADDRINFO)
void
curl_dofreeaddrinfo(struct addrinfo *freethis,
int line, const char *source);
#endif
#if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO)
int
curl_dogetaddrinfo(const char *hostname,
const char *service,
const struct addrinfo *hints,
struct addrinfo **result,
int line, const char *source);
#endif
#ifdef HAVE_GETADDRINFO
#ifdef USE_RESOLVE_ON_IPS
void Curl_addrinfo_set_port(Curl_addrinfo *addrinfo, int port);
#else
#define Curl_addrinfo_set_port(x,y)
#endif
#endif
#endif /* HEADER_CURL_ADDRINFO_H */