url: add CURLOPT_SSL_VERIFYSTATUS option
This option can be used to enable/disable certificate status verification using the "Certificate Status Request" TLS extension defined in RFC6066 section 8. This also adds the CURLE_SSL_INVALIDCERTSTATUS error, to be used when the certificate status verification fails, and the Curl_ssl_cert_status_request() function, used to check whether the SSL backend supports the status_request extension.
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Daniel Stenberg

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docs/libcurl/opts/CURLOPT_SSL_VERIFYSTATUS.3
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docs/libcurl/opts/CURLOPT_SSL_VERIFYSTATUS.3
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.\" **************************************************************************
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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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.\" * 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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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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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_SSL_VERIFYSTATUS 3 "04 Dec 2014" "libcurl 7.40.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_SSL_VERIFYSTATUS \- verify the certificate's status
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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_SSL_VERIFYSTATUS, long verify);
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.SH DESCRIPTION
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Pass a long as parameter to enable or disable.
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This option determines whether libcurl verifies the status of the server cert
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using the "Certificate Status Request" TLS extension (aka. OCSP stapling).
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Note that if this option is enabled but the server does not support the TLS
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extension, the verification will fail.
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.SH DEFAULT
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0
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.SH PROTOCOLS
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All TLS based protocols: HTTPS, FTPS, IMAPS, POP3, SMTPS etc.
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.SH EXAMPLE
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TODO
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.SH AVAILABILITY
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This is currently only supported by the GnuTLS and NSS TLS backends.
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.SH RETURN VALUE
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Returns CURLE_OK if OCSP stapling is supported by the SSL backend, otherwise
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returns CURLE_NOT_BUILT_IN.
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.SH "SEE ALSO"
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.BR CURLOPT_SSL_VERIFYHOST "(3), "
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.BR CURLOPT_SSL_VERIFYPEER "(3), "
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.BR CURLOPT_CAINFO "(3), "
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@@ -118,6 +118,7 @@ CURLE_SSL_CRL_BADFILE 7.19.0
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CURLE_SSL_ENGINE_INITFAILED 7.12.3
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CURLE_SSL_ENGINE_NOTFOUND 7.9.3
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CURLE_SSL_ENGINE_SETFAILED 7.9.3
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CURLE_SSL_INVALIDCERTSTATUS 7.41.0
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CURLE_SSL_ISSUER_ERROR 7.19.0
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CURLE_SSL_PEER_CERTIFICATE 7.8 7.17.1
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CURLE_SSL_PINNEDPUBKEYNOTMATCH 7.39.0
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@@ -513,6 +514,7 @@ CURLOPT_SSL_OPTIONS 7.25.0
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CURLOPT_SSL_SESSIONID_CACHE 7.16.0
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CURLOPT_SSL_VERIFYHOST 7.8.1
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CURLOPT_SSL_VERIFYPEER 7.4.2
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CURLOPT_SSL_VERIFYSTATUS 7.41.0
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CURLOPT_STDERR 7.1
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CURLOPT_TCP_KEEPALIVE 7.25.0
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CURLOPT_TCP_KEEPIDLE 7.25.0
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