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ntp 4.2.6p5

    1: /*
    2:  * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
    3:  * Copyright (C) 2002  Internet Software Consortium.
    4:  *
    5:  * Permission to use, copy, modify, and/or distribute this software for any
    6:  * purpose with or without fee is hereby granted, provided that the above
    7:  * copyright notice and this permission notice appear in all copies.
    8:  *
    9:  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
   10:  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
   11:  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
   12:  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
   13:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
   14:  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   15:  * PERFORMANCE OF THIS SOFTWARE.
   16:  */
   17: 
   18: /* $Id: region.c,v 1.1.1.1 2012/05/29 12:08:38 misho Exp $ */
   19: 
   20: /*! \file */
   21: 
   22: #include <config.h>
   23: 
   24: #include <stdlib.h>
   25: #include <string.h>
   26: 
   27: #include <isc/region.h>
   28: #include <isc/util.h>
   29: 
   30: int
   31: isc_region_compare(isc_region_t *r1, isc_region_t *r2) {
   32: 	unsigned int l;
   33: 	int result;
   34: 
   35: 	REQUIRE(r1 != NULL);
   36: 	REQUIRE(r2 != NULL);
   37: 	       
   38: 	l = (r1->length < r2->length) ? r1->length : r2->length;
   39: 
   40: 	if ((result = memcmp(r1->base, r2->base, l)) != 0)
   41: 		return ((result < 0) ? -1 : 1);
   42: 	else
   43: 		return ((r1->length == r2->length) ? 0 :
   44: 			(r1->length < r2->length) ? -1 : 1);
   45: }