/*
* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: region.c,v 1.7 2007/06/19 23:47:17 tbox Exp $ */
/*! \file */
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include <isc/region.h>
#include <isc/util.h>
int
isc_region_compare(isc_region_t *r1, isc_region_t *r2) {
unsigned int l;
int result;
REQUIRE(r1 != NULL);
REQUIRE(r2 != NULL);
l = (r1->length < r2->length) ? r1->length : r2->length;
if ((result = memcmp(r1->base, r2->base, l)) != 0)
return ((result < 0) ? -1 : 1);
else
return ((r1->length == r2->length) ? 0 :
(r1->length < r2->length) ? -1 : 1);
}