/**
* gnutls_x509_dn_export2:
* @dn: Holds the uint8_t DN object
* @format: the format of output params. One of PEM or DER.
* @out: will contain a DN PEM or DER encoded
*
* This function will export the DN to DER or PEM format.
*
* The output buffer is allocated using gnutls_malloc().
*
* If the structure is PEM encoded, it will have a header
* of "BEGIN NAME".
*
* Returns: On success, %GNUTLS_E_SUCCESS (0) is returned, otherwise a
* negative error value.
*
* Since: 3.1.3
**/
int
gnutls_x509_dn_export2(gnutls_x509_dn_t dn,
gnutls_x509_crt_fmt_t format, gnutls_datum_t * out)
{
if (dn == NULL) {
gnutls_assert();
return GNUTLS_E_INVALID_REQUEST;
}
return _gnutls_x509_export_int_named2(dn->asn, "rdnSequence",
format, "NAME", out);
}
/* A generic export function. Will export the given ASN.1 encoded data
* to PEM or DER raw data.
*/
int
_gnutls_x509_export_int_named(ASN1_TYPE asn1_data, const char *name,
gnutls_x509_crt_fmt_t format,
const char *pem_header,
unsigned char *output_data,
size_t * output_data_size)
{
int ret;
gnutls_datum_t out = {NULL,0};
size_t size;
ret = _gnutls_x509_export_int_named2(asn1_data, name,
format, pem_header, &out);
if (ret < 0)
return gnutls_assert_val(ret);
if (format == GNUTLS_X509_FMT_PEM)
size = out.size + 1;
else
size = out.size;
if (*output_data_size < size) {
*output_data_size = size;
ret = gnutls_assert_val(GNUTLS_E_SHORT_MEMORY_BUFFER);
goto cleanup;
}
*output_data_size = (size_t) out.size;
if (output_data) {
memcpy(output_data, out.data, (size_t) out.size);
if (format == GNUTLS_X509_FMT_PEM)
output_data[out.size] = 0;
}
ret = 0;
cleanup:
gnutls_free(out.data);
return ret;
}
