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8924f58c37
If libcurl was built with GSS-API support, it unconditionally advertised GSS-API authentication while connecting to a SOCKS5 proxy. This caused problems in environments with improperly configured Kerberos: a stock libcurl failed to connect, despite libcurl built without GSS-API connected fine using username and password. This commit introduces the CURLOPT_SOCKS5_AUTH option to control the allowed methods for SOCKS5 authentication at run time. Note that a new option was preferred over reusing CURLOPT_PROXYAUTH for compatibility reasons because the set of authentication methods allowed by default was different for HTTP and SOCKS5 proxies. Bug: https://curl.haxx.se/mail/lib-2017-01/0005.html Closes https://github.com/curl/curl/pull/1454
64 lines
2.5 KiB
Groff
64 lines
2.5 KiB
Groff
.\" **************************************************************************
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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 - 2017, 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 https://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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.\"
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.TH CURLOPT_SOCKS5_AUTH 3 "27 April 2017" "libcurl 7.55.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_SOCKS5_AUTH \- set allowed methods for SOCKS5 proxy authentication
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SOCKS5_AUTH, long bitmask);
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.SH DESCRIPTION
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Pass a long as parameter, which is set to a bitmask, to tell libcurl which
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authentication method(s) are allowed for SOCKS5 proxy authentication. The only
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supported flags are \fICURLAUTH_BASIC\fP, which allows username/password
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authentication, \fICURLAUTH_GSSAPI\fP, which allows GSS-API authentication, and
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\fICURLAUTH_NONE\fP, which allows no authentication. Set the actual user name
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and password with the \fICURLOPT_PROXYUSERPWD(3)\fP option.
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.SH DEFAULT
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CURLAUTH_BASIC|CURLAUTH_GSSAPI
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.SH PROTOCOLS
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All
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* request to use a SOCKS5 proxy */
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curl_easy_setopt(curl, CURLOPT_PROXY, "socks5://user:pass@myproxy.com");
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/* enable username/password authentication only */
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curl_easy_setopt(curl, CURLOPT_SOCKS5_AUTH, CURLAUTH_BASIC);
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/* Perform the request */
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curl_easy_perform(curl);
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}
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.fi
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.SH AVAILABILITY
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Added in 7.55.0
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_NOT_BUILT_IN if the bitmask contains unsupported flags.
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.SH "SEE ALSO"
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.BR CURLOPT_PROXY "(3), " CURLOPT_PROXYTYPE "(3)"
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