1.\" $NetBSD: bswap.3,v 1.6 2002/02/07 07:00:10 ross Exp $ 2.\" 3.\" Copyright (c) 1998 Manuel Bouyer. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. All advertising materials mentioning features or use of this software 14.\" must display the following acknowledgement: 15.\" This product includes software developed by the University of 16.\" California, Berkeley and its contributors. 17.\" 4. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29.\" INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31.\" 32.Dd March 17, 1998 33.Dt BSWAP 3 34.Os 35.Sh NAME 36.Nm bswap16 , 37.Nm bswap32 , 38.Nm bswap64 39.Nd byte-order swapping functions 40.Sh LIBRARY 41.Lb libc 42.Sh SYNOPSIS 43.Fd #include \*[Lt]sys/types.h\*[Gt] 44.Fd #include \*[Lt]machine/bswap.h\*[Gt] 45.Ft u_int16_t 46.Fn bswap16 "u_int16_t" 47.Ft u_int32_t 48.Fn bswap32 "u_int32_t" 49.Ft u_int64_t 50.Fn bswap64 "u_int64_t" 51.Sh DESCRIPTION 52The 53.Fn bswap16 , 54.Fn bswap32 , 55and 56.Fn bswap64 57functions return the value of their argument with the bytes inverted. 58They can be used to convert 16, 32 or 64 bits integers from little to big 59endian, or vice-versa. 60.Sh SEE ALSO 61.Xr byteorder 3 62