mirror of
https://github.com/moparisthebest/curl
synced 2024-12-23 00:28:48 -05:00
970c22f970
The ability to do HTTP requests over a UNIX domain socket has been requested before, in Apr 2008 [0][1] and Sep 2010 [2]. While a discussion happened, no patch seems to get through. I decided to give it a go since I need to test a nginx HTTP server which listens on a UNIX domain socket. One patch [3] seems to make it possible to use the CURLOPT_OPENSOCKETFUNCTION function to gain a UNIX domain socket. Another person wrote a Go program which can do HTTP over a UNIX socket for Docker[4] which uses a special URL scheme (though the name contains cURL, it has no relation to the cURL library). This patch considers support for UNIX domain sockets at the same level as HTTP proxies / IPv6, it acts as an intermediate socket provider and not as a separate protocol. Since this feature affects network operations, a new feature flag was added ("unix-sockets") with a corresponding CURL_VERSION_UNIX_SOCKETS macro. A new CURLOPT_UNIX_SOCKET_PATH option is added and documented. This option enables UNIX domain sockets support for all requests on the handle (replacing IP sockets and skipping proxies). A new configure option (--enable-unix-sockets) and CMake option (ENABLE_UNIX_SOCKETS) can disable this optional feature. Note that I deliberately did not mark this feature as advanced, this is a feature/component that should easily be available. [0]: http://curl.haxx.se/mail/lib-2008-04/0279.html [1]: http://daniel.haxx.se/blog/2008/04/14/http-over-unix-domain-sockets/ [2]: http://sourceforge.net/p/curl/feature-requests/53/ [3]: http://curl.haxx.se/mail/lib-2008-04/0361.html [4]: https://github.com/Soulou/curl-unix-socket Signed-off-by: Peter Wu <peter@lekensteyn.nl>
364 lines
8.1 KiB
C
364 lines
8.1 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "curl_setup.h"
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#include <curl/curl.h>
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#include "urldata.h"
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#include "vtls/vtls.h"
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#include "http2.h"
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#define _MPRINTF_REPLACE /* use the internal *printf() functions */
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#include <curl/mprintf.h>
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#ifdef USE_ARES
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# if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
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(defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__))
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# define CARES_STATICLIB
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# endif
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# include <ares.h>
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#endif
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#ifdef USE_LIBIDN
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#include <stringprep.h>
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#endif
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#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
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#include <iconv.h>
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#endif
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#ifdef USE_LIBRTMP
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#include <librtmp/rtmp.h>
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#endif
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#ifdef USE_LIBSSH2
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#include <libssh2.h>
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#endif
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#ifdef HAVE_LIBSSH2_VERSION
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/* get it run-time if possible */
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#define CURL_LIBSSH2_VERSION libssh2_version(0)
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#else
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/* use build-time if run-time not possible */
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#define CURL_LIBSSH2_VERSION LIBSSH2_VERSION
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#endif
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char *curl_version(void)
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{
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static char version[200];
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char *ptr = version;
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size_t len;
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size_t left = sizeof(version);
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strcpy(ptr, LIBCURL_NAME "/" LIBCURL_VERSION);
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len = strlen(ptr);
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left -= len;
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ptr += len;
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if(left > 1) {
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len = Curl_ssl_version(ptr + 1, left - 1);
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if(len > 0) {
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*ptr = ' ';
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left -= ++len;
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ptr += len;
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}
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}
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#ifdef HAVE_LIBZ
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len = snprintf(ptr, left, " zlib/%s", zlibVersion());
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left -= len;
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ptr += len;
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#endif
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#ifdef USE_ARES
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/* this function is only present in c-ares, not in the original ares */
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len = snprintf(ptr, left, " c-ares/%s", ares_version(NULL));
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left -= len;
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ptr += len;
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#endif
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#ifdef USE_LIBIDN
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if(stringprep_check_version(LIBIDN_REQUIRED_VERSION)) {
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len = snprintf(ptr, left, " libidn/%s", stringprep_check_version(NULL));
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left -= len;
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ptr += len;
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}
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#endif
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#ifdef USE_WIN32_IDN
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len = snprintf(ptr, left, " WinIDN");
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left -= len;
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ptr += len;
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#endif
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#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
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#ifdef _LIBICONV_VERSION
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len = snprintf(ptr, left, " iconv/%d.%d",
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_LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
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#else
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/* version unknown */
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len = snprintf(ptr, left, " iconv");
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#endif /* _LIBICONV_VERSION */
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left -= len;
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ptr += len;
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#endif
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#ifdef USE_LIBSSH2
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len = snprintf(ptr, left, " libssh2/%s", CURL_LIBSSH2_VERSION);
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left -= len;
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ptr += len;
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#endif
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#ifdef USE_NGHTTP2
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len = Curl_http2_ver(ptr, left);
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left -= len;
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ptr += len;
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#endif
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#ifdef USE_LIBRTMP
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{
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char suff[2];
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if(RTMP_LIB_VERSION & 0xff) {
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suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
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suff[1] = '\0';
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}
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else
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suff[0] = '\0';
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snprintf(ptr, left, " librtmp/%d.%d%s",
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RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
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suff);
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/*
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If another lib version is added below this one, this code would
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also have to do:
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len = what snprintf() returned
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left -= len;
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ptr += len;
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*/
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}
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#endif
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return version;
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}
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/* data for curl_version_info
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Keep the list sorted alphabetically. It is also written so that each
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protocol line has its own #if line to make things easier on the eye.
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*/
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static const char * const protocols[] = {
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#ifndef CURL_DISABLE_DICT
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"dict",
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#endif
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#ifndef CURL_DISABLE_FILE
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"file",
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#endif
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#ifndef CURL_DISABLE_FTP
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"ftp",
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#endif
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#if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
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"ftps",
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#endif
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#ifndef CURL_DISABLE_GOPHER
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"gopher",
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#endif
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#ifndef CURL_DISABLE_HTTP
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"http",
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#endif
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#if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
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"https",
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#endif
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#ifndef CURL_DISABLE_IMAP
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"imap",
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#endif
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#if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
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"imaps",
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#endif
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#ifndef CURL_DISABLE_LDAP
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"ldap",
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#if !defined(CURL_DISABLE_LDAPS) && \
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((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
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(!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
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"ldaps",
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#endif
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#endif
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#ifndef CURL_DISABLE_POP3
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"pop3",
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#endif
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#if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
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"pop3s",
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#endif
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#ifdef USE_LIBRTMP
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"rtmp",
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#endif
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#ifndef CURL_DISABLE_RTSP
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"rtsp",
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#endif
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#ifdef USE_LIBSSH2
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"scp",
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#endif
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#ifdef USE_LIBSSH2
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"sftp",
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#endif
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#if !defined(CURL_DISABLE_SMB) && defined(USE_NTLM) && \
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!defined(USE_WINDOWS_SSPI)
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"smb",
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# ifdef USE_SSL
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"smbs",
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# endif
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#endif
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#ifndef CURL_DISABLE_SMTP
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"smtp",
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#endif
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#if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
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"smtps",
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#endif
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#ifndef CURL_DISABLE_TELNET
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"telnet",
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#endif
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#ifndef CURL_DISABLE_TFTP
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"tftp",
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#endif
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NULL
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};
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static curl_version_info_data version_info = {
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CURLVERSION_NOW,
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LIBCURL_VERSION,
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LIBCURL_VERSION_NUM,
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OS, /* as found by configure or set by hand at build-time */
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0 /* features is 0 by default */
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#ifdef ENABLE_IPV6
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| CURL_VERSION_IPV6
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#endif
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#ifdef USE_SSL
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| CURL_VERSION_SSL
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#endif
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#ifdef USE_NTLM
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| CURL_VERSION_NTLM
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#endif
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#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
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defined(NTLM_WB_ENABLED)
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| CURL_VERSION_NTLM_WB
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#endif
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#ifdef USE_SPNEGO
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| CURL_VERSION_SPNEGO
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#endif
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#ifdef USE_KERBEROS5
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| CURL_VERSION_KERBEROS5
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#endif
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#ifdef HAVE_GSSAPI
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| CURL_VERSION_GSSAPI
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#endif
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#ifdef USE_WINDOWS_SSPI
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| CURL_VERSION_SSPI
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#endif
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#ifdef HAVE_LIBZ
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| CURL_VERSION_LIBZ
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#endif
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#ifdef DEBUGBUILD
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| CURL_VERSION_DEBUG
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#endif
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#ifdef CURLDEBUG
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| CURL_VERSION_CURLDEBUG
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#endif
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#ifdef CURLRES_ASYNCH
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| CURL_VERSION_ASYNCHDNS
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#endif
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#if (CURL_SIZEOF_CURL_OFF_T > 4) && \
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( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
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| CURL_VERSION_LARGEFILE
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#endif
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#if defined(CURL_DOES_CONVERSIONS)
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| CURL_VERSION_CONV
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#endif
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#if defined(USE_TLS_SRP)
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| CURL_VERSION_TLSAUTH_SRP
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#endif
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#if defined(USE_NGHTTP2)
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| CURL_VERSION_HTTP2
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#endif
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#if defined(USE_UNIX_SOCKETS)
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| CURL_VERSION_UNIX_SOCKETS
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#endif
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,
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NULL, /* ssl_version */
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0, /* ssl_version_num, this is kept at zero */
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NULL, /* zlib_version */
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protocols,
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NULL, /* c-ares version */
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0, /* c-ares version numerical */
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NULL, /* libidn version */
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0, /* iconv version */
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NULL, /* ssh lib version */
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};
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curl_version_info_data *curl_version_info(CURLversion stamp)
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{
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#ifdef USE_LIBSSH2
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static char ssh_buffer[80];
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#endif
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#ifdef USE_SSL
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static char ssl_buffer[80];
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Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
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version_info.ssl_version = ssl_buffer;
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#endif
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#ifdef HAVE_LIBZ
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version_info.libz_version = zlibVersion();
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/* libz left NULL if non-existing */
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#endif
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#ifdef USE_ARES
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{
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int aresnum;
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version_info.ares = ares_version(&aresnum);
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version_info.ares_num = aresnum;
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}
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#endif
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#ifdef USE_LIBIDN
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/* This returns a version string if we use the given version or later,
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otherwise it returns NULL */
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version_info.libidn = stringprep_check_version(LIBIDN_REQUIRED_VERSION);
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if(version_info.libidn)
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version_info.features |= CURL_VERSION_IDN;
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#elif defined(USE_WIN32_IDN)
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version_info.features |= CURL_VERSION_IDN;
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#endif
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#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
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#ifdef _LIBICONV_VERSION
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version_info.iconv_ver_num = _LIBICONV_VERSION;
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#else
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/* version unknown */
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version_info.iconv_ver_num = -1;
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#endif /* _LIBICONV_VERSION */
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#endif
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#ifdef USE_LIBSSH2
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snprintf(ssh_buffer, sizeof(ssh_buffer), "libssh2/%s", LIBSSH2_VERSION);
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version_info.libssh_version = ssh_buffer;
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#endif
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(void)stamp; /* avoid compiler warnings, we don't use this */
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return &version_info;
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}
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