61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/* $NetBSD: htonl.c,v 1.1 2000/01/05 14:07:36 msaitoh Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* 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.
|
|
*
|
|
* from: @(#)htonl.s 5.2 (Berkeley) 12/17/90
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <machine/endian.h>
|
|
#if defined(LIBC_SCCS)
|
|
__RCSID("$NetBSD: htonl.c,v 1.1 2000/01/05 14:07:36 msaitoh Exp $");
|
|
#endif
|
|
|
|
/* hostorder = htonl(netorder) */
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
u_int32_t
|
|
htonl(x)
|
|
u_int32_t x;
|
|
{
|
|
u_int32_t y = 0;
|
|
|
|
__asm__("swap.b %1, %0" : "=r" (y) : "r" (x));
|
|
__asm__("swap.w %1, %0" : "=r" (y) : "r" (y));
|
|
__asm__("swap.b %1, %0" : "=r" (y) : "r" (y));
|
|
return y;
|
|
}
|
|
#endif
|