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---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: curl_easy_ssls_import
Section: 3
Source: libcurl
See-also:
- CURLOPT_SHARE (3)
- curl_share_setopt (3)
- curl_easy_ssls_export (3)
Protocol:
- TLS
TLS-backend:
- GnuTLS
- OpenSSL
- wolfSSL
- mbedTLS
Added-in: 8.12.0
---
# NAME
curl_easy_ssls_import - import SSL sessions
# SYNOPSIS
~~~c
#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%
# EXAMPLE
~~~c
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%
# 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.
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