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6a90c9e0c4
For a long time (since 7.28.1) we've returned error when setting the value to 1 to make applications notice that we stopped supported the old behavior for 1. Starting now, we treat 1 and 2 exactly the same. Closes #4241
90 lines
3.4 KiB
Groff
90 lines
3.4 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 - 2019, 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_PROXY_SSL_VERIFYHOST 3 "16 Nov 2016" "libcurl 7.52.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_PROXY_SSL_VERIFYHOST \- verify the proxy certificate's name against host
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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_PROXY_SSL_VERIFYHOST, long verify);
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.SH DESCRIPTION
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Pass a long set to 2L as asking curl to \fIverify\fP in the HTTPS proxy's
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certificate name fields against the proxy name.
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This option determines whether libcurl verifies that the proxy cert contains
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the correct name for the name it is known as.
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When \fICURLOPT_PROXY_SSL_VERIFYHOST(3)\fP is 2, the proxy certificate must
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indicate that the server is the proxy to which you meant to connect to, or the
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connection fails.
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Curl considers the proxy the intended one when the Common Name field or a
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Subject Alternate Name field in the certificate matches the host name in the
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proxy string which you told curl to use.
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If \fIverify\fP value is set to 1:
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In 7.28.0 and earlier: treated as a debug option of some sorts, not supported
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anymore due to frequently leading to programmer mistakes.
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From 7.28.1 to 7.65.3: setting it to 1 made curl_easy_setopt() return an error
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and leaving the flag untouched.
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From 7.66.0: treats 1 and 2 the same.
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When the \fIverify\fP value is 0L, the connection succeeds regardless of the
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names used in the certificate. Use that ability with caution!
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See also \fICURLOPT_PROXY_SSL_VERIFYPEER(3)\fP to verify the digital signature
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of the proxy certificate. If libcurl is built against NSS and
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\fICURLOPT_PROXY_SSL_VERIFYPEER(3)\fP is zero,
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\fICURLOPT_PROXY_SSL_VERIFYHOST(3)\fP is also set to zero and cannot be
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overridden.
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.SH DEFAULT
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2
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.SH PROTOCOLS
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All protocols when used over an HTTPS proxy.
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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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/* Set the default value: strict name check please */
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curl_easy_setopt(curl, CURLOPT_PROXY_SSL_VERIFYHOST, 2L);
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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 7.52.0.
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If built TLS enabled.
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.SH RETURN VALUE
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Returns CURLE_OK if TLS is supported, and CURLE_UNKNOWN_OPTION if not.
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If 1 is set as argument, \fICURLE_BAD_FUNCTION_ARGUMENT\fP is returned.
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.SH "SEE ALSO"
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.BR CURLOPT_PROXY_SSL_VERIFYPEER "(3), " CURLOPT_PROXY_CAINFO "(3), "
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.BR CURLOPT_SSL_VERIFYPEER "(3), " CURLOPT_CAINFO "(3), "
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