/**
* gnutls_openpgp_key_export - This function will export a RAW or BASE64 encoded key
* @key: Holds the key.
* @format: One of gnutls_openpgp_key_fmt_t elements.
* @output_data: will contain the key base64 encoded or raw
* @output_data_size: holds the size of output_data (and will be replaced by the actual size of parameters)
*
* This function will convert the given key to RAW or Base64 format.
* If the buffer provided is not long enough to hold the output, then
* GNUTLS_E_SHORT_MEMORY_BUFFER will be returned.
*
* Returns 0 on success.
*
**/
int
gnutls_openpgp_key_export (gnutls_openpgp_key_t key,
gnutls_openpgp_key_fmt_t format,
void *output_data, size_t * output_data_size)
{
int rc;
size_t input_data_size = *output_data_size;
rc = cdk_kbnode_write_to_mem (key->knode, output_data, output_data_size);
if (rc)
{
rc = _gnutls_map_cdk_rc (rc);
gnutls_assert ();
return rc;
}
if (format == GNUTLS_OPENPGP_FMT_BASE64)
{
cdk_stream_t s;
s = cdk_stream_tmp_from_mem (output_data, *output_data_size);
if (s == NULL)
{
gnutls_assert ();
return GNUTLS_E_MEMORY_ERROR;
}
cdk_stream_tmp_set_mode (s, 1);
rc = cdk_stream_set_armor_flag (s, CDK_ARMOR_PUBKEY);
if (rc)
{
rc = _gnutls_map_cdk_rc (rc);
gnutls_assert ();
cdk_stream_close (s);
return rc;
}
*output_data_size = input_data_size;
rc = cdk_stream_read (s, output_data, *output_data_size);
if (rc == EOF)
{
gnutls_assert ();
cdk_stream_close (s);
return GNUTLS_E_INTERNAL_ERROR;
}
*output_data_size = rc;
if (*output_data_size != cdk_stream_get_length (s))
{
*output_data_size = cdk_stream_get_length (s);
cdk_stream_close (s);
gnutls_assert ();
return GNUTLS_E_SHORT_MEMORY_BUFFER;
}
cdk_stream_close (s);
}
return 0;
}
return 0;
}
/* internal version of export
*/
int
_gnutls_openpgp_export (cdk_kbnode_t node,
gnutls_openpgp_crt_fmt_t format,
void *output_data,
size_t * output_data_size, int private)
{
size_t input_data_size = *output_data_size;
size_t calc_size;
int rc;
rc = cdk_kbnode_write_to_mem (node, output_data, output_data_size);
if (rc)
{
rc = _gnutls_map_cdk_rc (rc);
gnutls_assert ();
return rc;
}
/* If the caller uses output_data == NULL then return what he expects.
*/
if (!output_data)
{
gnutls_assert ();
return GNUTLS_E_SHORT_MEMORY_BUFFER;
}
