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62 lines
2.6 KiB
Groff
62 lines
2.6 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 - 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 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_ISSUERCERT 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_ISSUERCERT \- issuer SSL certificate filename
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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_ISSUERCERT, char *file);
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.SH DESCRIPTION
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Pass a char * to a zero terminated string naming a \fIfile\fP holding a CA
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certificate in PEM format. If the option is set, an additional check against
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the peer certificate is performed to verify the issuer is indeed the one
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associated with the certificate provided by the option. This additional check
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is useful in multi-level PKI where one needs to enforce that the peer
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certificate is from a specific branch of the tree.
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This option makes sense only when used in combination with the
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\fICURLOPT_SSL_VERIFYPEER(3)\fP option. Otherwise, the result of the check is
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not considered as failure.
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A specific error code (CURLE_SSL_ISSUER_ERROR) is defined with the option,
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which is returned if the setup of the SSL/TLS session has failed due to a
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mismatch with the issuer of peer certificate (\fICURLOPT_SSL_VERIFYPEER(3)\fP
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has to be set too for the check to fail). (Added in 7.19.0)
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The application does not have to keep the string around after setting this
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option.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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All TLS-based protocols
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.SH EXAMPLE
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TODO
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.SH AVAILABILITY
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If built TLS enabled
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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_OUT_OF_MEMORY if there was insufficient heap space.
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.SH "SEE ALSO"
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.BR CURLOPT_CRLFILE "(3), " CURLOPT_SSL_VERIFYPEER "(3), "
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