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CURLOPT_DO...RIFYSTATUS(3) Library Functions Manual CURLOPT_DO...RIFYSTATUS(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.

       If  this	 option	is enabled and the server does not support the TLS ex-
       tension,	the verification fails.

DEFAULT
       0

PROTOCOLS
       This functionality affects all TLS based	protocols: HTTPS, FTPS,	IMAPS,
       POP3S, SMTPS etc.

       This option works only with the	following  TLS	backends:  GnuTLS  and
       OpenSSL

EXAMPLE
       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	curl 7.76.0

RETURN VALUE
       curl_easy_setopt(3) returns a CURLcode indicating success or error.

       CURLE_OK	(0) means everything was OK, non-zero means an error occurred,
       see libcurl-errors(3).

SEE ALSO
       CURLOPT_DOH_SSL_VERIFYHOST(3),	 CURLOPT_DOH_SSL_VERIFYPEER(3),	  CUR-
       LOPT_SSL_VERIFYSTATUS(3)

libcurl				  2025-06-03	    CURLOPT_DO...RIFYSTATUS(3)

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