CURLOPT_SSL_SESSIONID_CACHE - Man Page
use the SSL session-ID cache
Synopsis
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_SESSIONID_CACHE, long enabled);
Description
Pass a long set to 0 to disable libcurl's use of SSL session-ID caching. Set this to 1 to enable it. By default all transfers are done using the cache enabled. While nothing ever should get hurt by attempting to reuse SSL session-IDs, there seem to be or have been broken SSL implementations in the wild that may require you to disable this in order for you to succeed.
Default
1
Protocols
All TLS-based
Example
CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); /* switch off session-id use! */ curl_easy_setopt(curl, CURLOPT_SSL_SESSIONID_CACHE, 0L); ret = curl_easy_perform(curl); curl_easy_cleanup(curl); }
Availability
Added in 7.16.0
Return Value
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
See Also
Referenced By
April 26, 2023 ibcurl 8.1.1 libcurl