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/* GNUTLS --- Guile bindings for GnuTLS.
Copyright (C) 2007, 2008 Free Software Foundation
GNUTLS is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
GNUTLS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with GNUTLS; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
/* Written by Ludovic Courtès <ludo@chbouib.org>. */
#include "utils.h"
#include <gnutls/gnutls.h>
#include <libguile.h>
#include <alloca.h>
#include "enums.h"
#include "errors.h"
SCM
scm_from_gnutls_key_usage_flags (unsigned int c_usage)
{
SCM usage = SCM_EOL;
#define MATCH_USAGE(_value) \
if (c_usage & (_value)) \
{ \
usage = scm_cons (scm_from_gnutls_key_usage (_value), \
usage); \
c_usage &= ~(_value); \
}
/* when the key is to be used for signing: */
MATCH_USAGE (GNUTLS_KEY_DIGITAL_SIGNATURE);
MATCH_USAGE (GNUTLS_KEY_NON_REPUDIATION);
/* when the key is to be used for encryption: */
MATCH_USAGE (GNUTLS_KEY_KEY_ENCIPHERMENT);
MATCH_USAGE (GNUTLS_KEY_DATA_ENCIPHERMENT);
MATCH_USAGE (GNUTLS_KEY_KEY_AGREEMENT);
MATCH_USAGE (GNUTLS_KEY_KEY_CERT_SIGN);
MATCH_USAGE (GNUTLS_KEY_CRL_SIGN);
MATCH_USAGE (GNUTLS_KEY_ENCIPHER_ONLY);
MATCH_USAGE (GNUTLS_KEY_DECIPHER_ONLY);
if (EXPECT_FALSE (c_usage != 0))
/* XXX: We failed to interpret one of the usage flags. */
scm_gnutls_error (GNUTLS_E_UNIMPLEMENTED_FEATURE, __func__);
#undef MATCH_USAGE
return usage;
}
/* arch-tag: a55fe230-ead7-495d-ab11-dfe18452ca2a
*/
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