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/* Copyright 2020 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdlib.h>
#include <strings.h>
#include "vboot_host.h"
static int lookup_helper(const char *str, const char *table[], size_t size,
unsigned int *out)
{
unsigned int algo;
char *e;
/* try string first */
for (algo = 0; algo < size; algo++)
if (table[algo] && !strcasecmp(table[algo], str))
goto found;
/* fine, try number */
algo = strtoul(str, &e, 0);
if (!*str || (e && *e))
/* that's not a number */
return false;
if (algo >= size || !table[algo])
/* that's not a valid algorithm */
return false;
found:
*out = algo;
return true;
}
bool vb2_lookup_sig_alg(const char *str, enum vb2_signature_algorithm *sig_alg)
{
return lookup_helper(str, vb2_sig_names, VB2_SIG_ALG_COUNT, sig_alg);
}
bool vb2_lookup_hash_alg(const char *str, enum vb2_hash_algorithm *hash_alg)
{
return lookup_helper(str, vb2_hash_names, VB2_HASH_ALG_COUNT, hash_alg);
}
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