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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) {
	   extern unsigned char	*shmac,	*sdata;
	   size_t hlen = 4, slen = 5;

	   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				  2025-06-03	      curl_easy_ssls_import(3)

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