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

1.1       misho       1: /*
                      2:  * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
                      3:  * Copyright (C) 1999-2001  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: serial.c,v 1.12 2007/06/19 23:47:17 tbox Exp $ */
                     19: 
                     20: /*! \file */
                     21: 
                     22: #include <config.h>
                     23: 
                     24: #include <isc/serial.h>
                     25: 
                     26: isc_boolean_t
                     27: isc_serial_lt(isc_uint32_t a, isc_uint32_t b) {
                     28:        /*
                     29:         * Undefined => ISC_FALSE
                     30:         */
                     31:        if (a == (b ^ 0x80000000U))
                     32:                return (ISC_FALSE);
                     33:        return (((isc_int32_t)(a - b) < 0) ? ISC_TRUE : ISC_FALSE);
                     34: }
                     35: 
                     36: isc_boolean_t
                     37: isc_serial_gt(isc_uint32_t a, isc_uint32_t b) {
                     38:        return (((isc_int32_t)(a - b) > 0) ? ISC_TRUE : ISC_FALSE);
                     39: }
                     40: 
                     41: isc_boolean_t
                     42: isc_serial_le(isc_uint32_t a, isc_uint32_t b) {
                     43:        return ((a == b) ? ISC_TRUE : isc_serial_lt(a, b));
                     44: }
                     45: 
                     46: isc_boolean_t
                     47: isc_serial_ge(isc_uint32_t a, isc_uint32_t b) {
                     48:        return ((a == b) ? ISC_TRUE : isc_serial_gt(a, b));
                     49: }
                     50: 
                     51: isc_boolean_t
                     52: isc_serial_eq(isc_uint32_t a, isc_uint32_t b) {
                     53:        return ((a == b) ? ISC_TRUE : ISC_FALSE);
                     54: }
                     55: 
                     56: isc_boolean_t
                     57: isc_serial_ne(isc_uint32_t a, isc_uint32_t b) {
                     58:        return ((a != b) ? ISC_TRUE : ISC_FALSE);
                     59: }