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)