CURLOPT_SSL_SESSIONID_CACHE - ID cache
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_SESSIONID_CACHE, long enabled);
curl_easy_setopt options CURLOPT_SSL_SESSIONID_CACHE(3)
NAME
CURLOPT_SSL_SESSIONID_CACHE - 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 attempt-
ing 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.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
CURLOPT_DNS_CACHE_TIMEOUT(3), CURLOPT_SSLVERSION(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 September 08, 2021
CURLOPT_SSL_SESSIONID_CACHE(3)