curl_easy_ssls_import(3) Library Functions Manual curl_easy_ssls_import(3)
NAME
curl_easy_ssls_export - export SSL sessions
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_ssls_import(CURL *handle,
const char *session_key,
const unsigned char *shmac, size_t shmac_len,
const unsigned char *sdata, size_t sdata_len);
DESCRIPTION
This function imports a previously exported SSL session ticket. sdata
and sdata_len must always be provided. If session_key is NULL, then
shmac and shmac_len must be given as received during the export. See
curl_easy_ssls_export(3) for a description of those.
Import of session tickets from other curl versions may fail due to
changes in the handling of shmac or sdata. A session ticket which has
already expired is silently discarded.
PROTOCOLS
This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS,
POP3S, SMTPS etc.
This option works only with the following TLS backends: BearSSL,
GnuTLS, OpenSSL, mbedTLS and wolfSSL
EXAMPLE
int main(void)
{
CURLSHcode sh;
CURLSH *share = curl_share_init();
CURLcode rc;
CURL *curl;
sh = curl_share_setopt(share, CURLSHOPT_SHARE, CURL_LOCK_DATA_SSL_SESSION);
if(sh)
printf("Error: %s\n", curl_share_strerror(sh));
curl = curl_easy_init();
if(curl) {
unsigned char *shmac, *sdata;
size_t hlen, slen;
curl_easy_setopt(curl, CURLOPT_SHARE, share);
/* read shmac and sdata from storage */
rc = curl_easy_ssls_import(curl, NULL, shmac, hlen, sdata, slen);
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_share_cleanup(share);
}
AVAILABILITY
Added in curl 8.12.0
RETURN VALUE
This function returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred,
see libcurl-errors(3). If CURLOPT_ERRORBUFFER(3) was set with
curl_easy_setopt(3) there can be an error message stored in the error
buffer when non-zero is returned.
SEE ALSO
CURLOPT_SHARE(3), curl_easy_ssls_export(3), curl_share_setopt(3)
libcurl 2025-02-08 curl_easy_ssls_import(3)
curl 8.12.0 - Generated Wed Feb 19 16:45:35 CST 2025