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.\" generated by cd2nroff 0.1 from curl_easy_ssls_import.md
.TH curl_easy_ssls_import 3 "2025-06-27" 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) {
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);
}
.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)