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