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.TH CURLOPT_SSL_SESSIONID_CACHE 3 "November 04, 2020" "libcurl 7.77.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_SSL_SESSIONID_CACHE \- enable/disable use of the SSL session-ID cache
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_SESSIONID_CACHE,
long enabled);
.SH 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.
.SH DEFAULT
1
.SH PROTOCOLS
All TLS-based
.SH EXAMPLE
.nf
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);
}
.fi
.SH AVAILABILITY
Added in 7.16.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_DNS_CACHE_TIMEOUT "(3), " CURLOPT_SSLVERSION "(3), "
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