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//proc/self/root/opt/curlssl/share/man/man3/CURLOPT_ISSUERCERT.3
.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms .\" * are also available at http://curl.haxx.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" ************************************************************************** .\" .TH CURLOPT_ISSUERCERT 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" .SH NAME CURLOPT_ISSUERCERT \- issuer SSL certificate filename .SH SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ISSUERCERT, char *file); .SH DESCRIPTION Pass a char * to a zero terminated string naming a \fIfile\fP holding a CA certificate in PEM format. If the option is set, an additional check against the peer certificate is performed to verify the issuer is indeed the one associated with the certificate provided by the option. This additional check is useful in multi-level PKI where one needs to enforce that the peer certificate is from a specific branch of the tree. This option makes sense only when used in combination with the \fICURLOPT_SSL_VERIFYPEER(3)\fP option. Otherwise, the result of the check is not considered as failure. A specific error code (CURLE_SSL_ISSUER_ERROR) is defined with the option, which is returned if the setup of the SSL/TLS session has failed due to a mismatch with the issuer of peer certificate (\fICURLOPT_SSL_VERIFYPEER(3)\fP has to be set too for the check to fail). (Added in 7.19.0) .SH DEFAULT NULL .SH PROTOCOLS All TLS-based protocols .SH EXAMPLE TODO .SH AVAILABILITY If built TLS enabled .SH RETURN VALUE Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space. .SH "SEE ALSO" .BR CURLOPT_CRLFILE "(3), " CURLOPT_SSL_VERIFYPEER "(3), "
