NetBSD/usr.sbin/timed/timed/byteorder.c

92 lines
3.0 KiB
C

/*-
* Copyright (c) 1985, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)byteorder.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: byteorder.c,v 1.5 1997/10/17 14:19:12 lukem Exp $");
#endif
#endif /* not lint */
#ifdef sgi
#ident "$Revision: 1.5 $"
#endif
#include "globals.h"
/*
* Two routines to do the necessary byte swapping for timed protocol
* messages. Protocol is defined in /usr/include/protocols/timed.h
*/
void
bytenetorder(ptr)
struct tsp *ptr;
{
ptr->tsp_seq = htons((u_short)ptr->tsp_seq);
switch (ptr->tsp_type) {
case TSP_SETTIME:
case TSP_ADJTIME:
case TSP_SETDATE:
case TSP_SETDATEREQ:
ptr->tsp_time.tv_sec = htonl((u_long)ptr->tsp_time.tv_sec);
ptr->tsp_time.tv_usec = htonl((u_long)ptr->tsp_time.tv_usec);
break;
default:
break; /* nothing more needed */
}
}
void
bytehostorder(ptr)
struct tsp *ptr;
{
ptr->tsp_seq = ntohs((u_short)ptr->tsp_seq);
switch (ptr->tsp_type) {
case TSP_SETTIME:
case TSP_ADJTIME:
case TSP_SETDATE:
case TSP_SETDATEREQ:
ptr->tsp_time.tv_sec = ntohl((u_long)ptr->tsp_time.tv_sec);
ptr->tsp_time.tv_usec = ntohl((u_long)ptr->tsp_time.tv_usec);
break;
default:
break; /* nothing more needed */
}
}