parse.c revision 19c78dc07fce2d6f39b5e541562afc3ca1ea38ff 
1/*
2 * parse.c --- UUID parsing
3 *
4 * Copyright (C) 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Public
8 * License.
9 * %End-Header%
10 */
11
12#include <stdlib.h>
13#include <stdio.h>
14#include <ctype.h>
15
16#include "uuidP.h"
17
18int uuid_parse(char *in, uuid_t uu)
19{
20	struct uuid uuid;
21	int i;
22	char *cp, buf[3];
23
24	if (strlen(in) != 36)
25		return -1;
26	for (i=0, cp = in; i <= 36; i++,cp++) {
27		if ((i == 8) || (i == 13) || (i == 18) ||
28		    (i == 23))
29			if (*cp == '-')
30				continue;
31		if (i== 36)
32			if (*cp == 0)
33				continue;
34		if (!isxdigit(*cp))
35			return -1;
36	}
37	uuid.time_low = strtoul(in, NULL, 16);
38	uuid.time_mid = strtoul(in+9, NULL, 16);
39	uuid.time_hi_and_version = strtoul(in+14, NULL, 16);
40	uuid.clock_seq = strtoul(in+19, NULL, 16);
41	cp = in+24;
42	buf[2] = 0;
43	for (i=0; i < 6; i++) {
44		buf[0] = *cp++;
45		buf[1] = *cp++;
46		uuid.node[i] = strtoul(buf, NULL, 16);
47	}
48
49	uuid_pack(&uuid, uu);
50	return 0;
51}
52