lib/uuid/compare.c

/*
 * compare.c --- compare whether or not two UUID's are the same
 *
 * Returns 0 if the two UUID's are different, and 1 if they are the same.
 * 
 * Copyright (C) 1996, 1997 Theodore Ts'o.
 *
 * %Begin-Header%
 * This file may be redistributed under the terms of the GNU Public
 * License.
 * %End-Header%
 */

#include "uuidP.h"

#define UUCMP(u1,u2) if (u1 != u2) return((u1 < u2) ? -1 : 1);

int uuid_compare(uuid_t uu1, uuid_t uu2)
{
	struct uuid	uuid1, uuid2;

	uuid_unpack(uu1, &uuid1);
	uuid_unpack(uu2, &uuid2);

	UUCMP(uuid1.time_low, uuid2.time_low);
	UUCMP(uuid1.time_mid, uuid2.time_mid);
	UUCMP(uuid1.time_hi_and_version, uuid2.time_hi_and_version);
	UUCMP(uuid1.clock_seq, uuid2.clock_seq);
	return memcmp(uuid1.node, uuid2.node, 6);
}