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/* Copyright (C) 2019 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <string.h>
#include "libdnssec/error.h"
#include "libdnssec/keyid.h"
#include "libdnssec/shared/shared.h"
#include "contrib/ctype.h"
#include "contrib/tolower.h"
/* -- public API ----------------------------------------------------------- */
_public_
bool dnssec_keyid_is_valid(const char *id)
{
if (!id) {
return false;
}
if (strlen(id) % 2 != 0) {
return false;
}
for (int i = 0; id[i] != '\0'; i++) {
if (!is_xdigit(id[i])) {
return false;
}
}
return true;
}
_public_
void dnssec_keyid_normalize(char *id)
{
if (!id) {
return;
}
for (size_t i = 0; id[i] != '\0'; i++) {
assert(id[i] != '\0' && is_xdigit(id[i]));
id[i] = knot_tolower(id[i]);
}
}
_public_
char *dnssec_keyid_copy(const char *id)
{
if (!id) {
return NULL;
}
char *copy = strdup(id);
if (!copy) {
return NULL;
}
dnssec_keyid_normalize(copy);
return copy;
}
_public_
bool dnssec_keyid_equal(const char *one, const char *two)
{
if (!one || !two) {
return NULL;
}
return (strcasecmp(one, two) == 0);
}
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