CURLOPT_DNS_USE_GLOBAL_CACHE - global DNS cache
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_USE_GLOBAL_CACHE, long enable);
curl_easy_setopt options CURLOPT_DNS_USE_GLOBAL_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 will survive between easy handle creations and dele-
tions. This is not thread-safe and this will use a global variable.
WARNING: this option is considered obsolete. Stop using it. Switch over
to using the share interface instead! See CURLOPT_SHARE(3) and
curl_share_init(3).
DEFAULT
0
PROTOCOLS
All
EXAMPLE
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);
}
AVAILABILITY
Deprecated since 7.62.0. Has no function.
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
CURLOPT_SHARE(3), CURLOPT_DNS_CACHE_TIMEOUT(3),
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://curl.se/down-
load/curl-7.83.1.tar.bz2.
Further information about this software can be found on the open source
community website at http://curl.haxx.se/.
libcurl 7.83.1 November 26, 2021
CURLOPT_DNS_USE_GLOBAL_CACHE(3)