xref: /external/e2fsprogs/lib/uuid/parse.c

/*
 * parse.c --- UUID parsing
 */

#include <stdio.h>

#include "uuidP.h"

int uuid_parse(char *in, uuid_t uu)
{
	struct uuid uuid;
	int i;
	char *cp, buf[3];

	if (strlen(in) != 36)
		return -1;
	for (i=0, cp = in; i <= 36; i++,cp++) {
		if ((i == 8) || (i == 13) || (i == 18) ||
		    (i == 23))
			if (*cp == '-')
				continue;
		if (i== 36)
			if (*cp == 0)
				continue;
		if (!isxdigit(*cp))
			return -1;
	}
	uuid.time_low = strtoul(in, NULL, 16);
	uuid.time_mid = strtoul(in+9, NULL, 16);
	uuid.time_hi_and_version = strtoul(in+14, NULL, 16);
	uuid.clock_seq = strtoul(in+19, NULL, 16);
	cp = in+24;
	buf[2] = 0;
	for (i=0; i < 6; i++) {
		buf[0] = *cp++;
		buf[1] = *cp++;
		uuid.node[i] = strtoul(buf, NULL, 16);
	}

	uuid_pack(&uuid, uu);
	return 0;
}