table of contents
CURLOPT_DOH_SSL_VERIFYSTATUS(3) | curl_easy_setopt options | CURLOPT_DOH_SSL_VERIFYSTATUS(3) |
NAME¶
CURLOPT_DOH_SSL_VERIFYSTATUS - verify the DOH SSL certificate's status
SYNOPSIS¶
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DOH_SSL_VERIFYSTATUS, long verify);
DESCRIPTION¶
Pass a long as parameter set to 1 to enable or 0 to disable.
This option determines whether libcurl verifies the status of the DOH (DNS-over-HTTPS) server cert using the "Certificate Status Request" TLS extension (aka. OCSP stapling).
This option is the DOH equivalent of CURLOPT_SSL_VERIFYSTATUS(3) and only affects requests to the DOH server.
Note that if this option is enabled but the server does not support the TLS extension, the verification will fail.
DEFAULT¶
0
PROTOCOLS¶
DOH
EXAMPLE¶
CURL *curl = curl_easy_init(); if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
curl_easy_setopt(curl, CURLOPT_DOH_URL, "https://cloudflare-dns.com/dns-query");
/* Ask for OCSP stapling when verifying the DOH server */
curl_easy_setopt(curl, CURLOPT_DOH_SSL_VERIFYSTATUS, 1L);
curl_easy_perform(curl); }
AVAILABILITY¶
Added in 7.76.0. This option is currently only supported by the OpenSSL, GnuTLS and NSS TLS backends.
RETURN VALUE¶
Returns CURLE_OK if OCSP stapling is supported by the SSL backend, otherwise returns CURLE_NOT_BUILT_IN.
SEE ALSO¶
CURLOPT_DOH_SSL_VERIFYHOST(3), CURLOPT_DOH_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYSTATUS(3),
February 11, 2021 | libcurl 7.76.1 |