timed.tproj/timed.tproj/byteorder.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*-
  25  * Copyright (c) 1985, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  */
  56
  57 #ifndef lint
  58 static char sccsid[] = "@(#)byteorder.c 8.1 (Berkeley) 6/6/93";
  59 #endif /* not lint */
  60
  61 #ifdef sgi
  62 #ident "$Revision: 1.1 $"
  63 #endif
  64
  65 #include "globals.h"
  66
  67 /*
  68  * Two routines to do the necessary byte swapping for timed protocol
  69  * messages. Protocol is defined in /usr/include/protocols/timed.h
  70  */
  71 void
  72 bytenetorder(ptr)
  73         struct tsp *ptr;
  74 {
  75         ptr->tsp_seq = htons((u_short)ptr->tsp_seq);
  76         switch (ptr->tsp_type) {
  77
  78         case TSP_SETTIME:
  79         case TSP_ADJTIME:
  80         case TSP_SETDATE:
  81         case TSP_SETDATEREQ:
  82                 ptr->tsp_time.tv_sec = htonl((u_long)ptr->tsp_time.tv_sec);
  83                 ptr->tsp_time.tv_usec = htonl((u_long)ptr->tsp_time.tv_usec);
  84                 break;
  85
  86         default:
  87                 break;          /* nothing more needed */
  88         }
  89 }
  90
  91 void
  92 bytehostorder(ptr)
  93         struct tsp *ptr;
  94 {
  95         ptr->tsp_seq = ntohs((u_short)ptr->tsp_seq);
  96         switch (ptr->tsp_type) {
  97
  98         case TSP_SETTIME:
  99         case TSP_ADJTIME:
 100         case TSP_SETDATE:
 101         case TSP_SETDATEREQ:
 102                 ptr->tsp_time.tv_sec = ntohl((u_long)ptr->tsp_time.tv_sec);
 103                 ptr->tsp_time.tv_usec = ntohl((u_long)ptr->tsp_time.tv_usec);
 104                 break;
 105
 106         default:
 107                 break;          /* nothing more needed */
 108         }
 109 }