.\" generated by cd2nroff 0.1 from curl_easy_ssls_import.md
.TH curl_easy_ssls_import 3 "2025-02-13" libcurl
.SH NAME
curl_easy_ssls_export \- export SSL sessions
.SH SYNOPSIS
.nf
#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);
.fi
.SH DESCRIPTION
This function imports a previously exported SSL session ticket. \fBsdata\fP and
\fBsdata_len\fP must always be provided. If \fBsession_key\fP is \fBNULL\fP, then
\fBshmac\fP and \fBshmac_len\fP must be given as received during the export.
See \fIcurl_easy_ssls_export(3)\fP for a description of those.

Import of session tickets from other curl versions may fail due to changes
in the handling of \fBshmac\fP or \fBsdata\fP. A session ticket which has
already expired is silently discarded.
.SH 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
.SH EXAMPLE
.nf
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);
}
.fi
.SH AVAILABILITY
Added in curl 8.12.0
.SH 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
\fIlibcurl\-errors(3)\fP. If \fICURLOPT_ERRORBUFFER(3)\fP was set with \fIcurl_easy_setopt(3)\fP
there can be an error message stored in the error buffer when non\-zero is
returned.
.SH SEE ALSO
.BR CURLOPT_SHARE (3),
.BR curl_easy_ssls_export (3),
.BR curl_share_setopt (3)