1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <stdint.h>
4 #include <lib.h>
5 #include <uuid.h>
6
parse_uuid(uint8_t * const uuid,const char * const uuid_str)7 int parse_uuid(uint8_t *const uuid, const char *const uuid_str)
8 {
9 const uint8_t order[] = { 3, 2, 1, 0, 5, 4, 7, 6, 8, 9, 10, 11, 12, 13, 14, 15 };
10 uint8_t uuid_binstr[UUID_LEN];
11 unsigned int i;
12
13 if (strlen(uuid_str) != UUID_STRLEN)
14 return -1;
15 if (uuid_str[8] != '-' || uuid_str[13] != '-' ||
16 uuid_str[18] != '-' || uuid_str[23] != '-')
17 return -1;
18 if (hexstrtobin(uuid_str, uuid_binstr, UUID_LEN) != UUID_LEN)
19 return -1;
20 for (i = 0; i < UUID_LEN; ++i)
21 uuid[i] = uuid_binstr[order[i]];
22
23 return 0;
24 }
25