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Annotation of embedaddon/ntp/lib/isc/region.c, revision 1.1.1.1

1.1       misho       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 1.7 2007/06/19 23:47:17 tbox 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: }