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CURLOPT_DN...OBAL_CACHE(3) Library Functions Manual CURLOPT_DN...OBAL_CACHE(3)

NAME
       CURLOPT_DNS_USE_GLOBAL_CACHE - global DNS cache

SYNOPSIS
       #include	<curl/curl.h>

       CURLcode	curl_easy_setopt(CURL *handle, CURLOPT_DNS_USE_GLOBAL_CACHE,
				 long enable);

DESCRIPTION
       Has no function since 7.62.0. Do	not use.

       Pass  a	long.  If the enable value is 1, it tells curl to use a	global
       DNS cache that survives between easy handle  creations  and  deletions.
       This is not thread-safe and this	uses a global variable.

       See  CURLOPT_SHARE(3)  and  curl_share_init(3)  for  the	correct	way to
       share DNS cache between transfers.

DEFAULT
       0

PROTOCOLS
       This functionality affects all supported	protocols

EXAMPLE
       int main(void)
       {
	 CURL *curl = curl_easy_init();
	 if(curl) {
	   CURLcode ret;
	   curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
	   /* switch off the use of a global, thread unsafe, cache */
	   curl_easy_setopt(curl, CURLOPT_DNS_USE_GLOBAL_CACHE,	0L);
	   ret = curl_easy_perform(curl);
	   curl_easy_cleanup(curl);
	 }
       }

DEPRECATED
       Deprecated since	7.11.1.	Functionality removed in 7.62.0.

AVAILABILITY
       Added in	curl 7.9.3

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_DNS_CACHE_TIMEOUT(3), CURLOPT_SHARE(3)

libcurl				  2025-06-03	    CURLOPT_DN...OBAL_CACHE(3)

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<https://man.freebsd.org/cgi/man.cgi?query=CURLOPT_DNS_USE_GLOBAL_CACHE&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

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