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---
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_DOH_SSL_VERIFYSTATUS
Section: 3
Source: libcurl
See-also:
- CURLOPT_DOH_SSL_VERIFYHOST (3)
- CURLOPT_DOH_SSL_VERIFYPEER (3)
- CURLOPT_SSL_VERIFYSTATUS (3)
---
# NAME
CURLOPT_DOH_SSL_VERIFYSTATUS - verify the DoH SSL certificate's status
# SYNOPSIS
~~~c
#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.
If this option is enabled and the server does not support the TLS extension,
the verification fails.
# DEFAULT
0
# PROTOCOLS
DoH
# EXAMPLE
~~~c
int main(void)
{
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, and
GnuTLS TLS backends.
# RETURN VALUE
Returns CURLE_OK if OCSP stapling is supported by the SSL backend, otherwise
returns CURLE_NOT_BUILT_IN.
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