07-25-2001
thnx Neo
I was just trying to check if there is any failed connections, perhaps due to fd exhausted.
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LEARN ABOUT MOJAVE
curlopt_issuercert
CURLOPT_ISSUERCERT(3) curl_easy_setopt options CURLOPT_ISSUERCERT(3)
NAME
CURLOPT_ISSUERCERT - issuer SSL certificate filename
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ISSUERCERT, char *file);
DESCRIPTION
Pass a char * to a zero terminated string naming a file 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 CURLOPT_SSL_VERIFYPEER(3) 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 (CURLOPT_SSL_VERIFYPEER(3) has to be set too for the check to fail). (Added in
7.19.0)
The application does not have to keep the string around after setting this option.
DEFAULT
NULL
PROTOCOLS
All TLS-based protocols
EXAMPLE
TODO
AVAILABILITY
If built TLS enabled
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.
SEE ALSO
CURLOPT_CRLFILE(3), CURLOPT_SSL_VERIFYPEER(3),
libcurl 7.54.0 December 21, 2016 CURLOPT_ISSUERCERT(3)