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curl_easy_ssls_import(3)    Library Functions Manual	curl_easy_ssls_import(3)

NAME
     curl_easy_ssls_import - import 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 ex-
     pired 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: GnuTLS, OpenSSL,
     mbedTLS and wolfSSL

EXAMPLE
     int main(void)
     {
       CURLSHcode sh;
       CURLSH *share = curl_share_init();
       CURLcode result;
       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 */
	 result = 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_se-
     topt(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 			   2026-06-11		curl_easy_ssls_import(3)

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