18a1791edSMike Barcroft.\" Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org> 28a1791edSMike Barcroft.\" All rights reserved. 38a1791edSMike Barcroft.\" 48a1791edSMike Barcroft.\" Redistribution and use in source and binary forms, with or without 58a1791edSMike Barcroft.\" modification, are permitted provided that the following conditions 68a1791edSMike Barcroft.\" are met: 78a1791edSMike Barcroft.\" 1. Redistributions of source code must retain the above copyright 88a1791edSMike Barcroft.\" notice, this list of conditions and the following disclaimer. 98a1791edSMike Barcroft.\" 2. Redistributions in binary form must reproduce the above copyright 108a1791edSMike Barcroft.\" notice, this list of conditions and the following disclaimer in the 118a1791edSMike Barcroft.\" documentation and/or other materials provided with the distribution. 128a1791edSMike Barcroft.\" 138a1791edSMike Barcroft.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 148a1791edSMike Barcroft.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158a1791edSMike Barcroft.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 168a1791edSMike Barcroft.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 178a1791edSMike Barcroft.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 188a1791edSMike Barcroft.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 198a1791edSMike Barcroft.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 208a1791edSMike Barcroft.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 218a1791edSMike Barcroft.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 228a1791edSMike Barcroft.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 238a1791edSMike Barcroft.\" SUCH DAMAGE. 248a1791edSMike Barcroft.\" 258a1791edSMike Barcroft.\" $FreeBSD$ 268a1791edSMike Barcroft.\" 278a1791edSMike Barcroft.Dd March 5, 2002 288a1791edSMike Barcroft.Dt BYTEORDER 9 298a1791edSMike Barcroft.Os 308a1791edSMike Barcroft.Sh NAME 318a1791edSMike Barcroft.Nm be16toh , 328a1791edSMike Barcroft.Nm be32toh , 338a1791edSMike Barcroft.Nm be64toh , 348a1791edSMike Barcroft.Nm htobe16 , 358a1791edSMike Barcroft.Nm htobe32 , 368a1791edSMike Barcroft.Nm htobe64 , 378a1791edSMike Barcroft.Nm htole16 , 388a1791edSMike Barcroft.Nm htole32 , 398a1791edSMike Barcroft.Nm htole64 , 408a1791edSMike Barcroft.Nm le16toh , 418a1791edSMike Barcroft.Nm le32toh , 428a1791edSMike Barcroft.Nm le64toh 438a1791edSMike Barcroft.Nd convert values between big endian, little endian, and host byte order 448a1791edSMike Barcroft.Sh SYNOPSIS 458a1791edSMike Barcroft.In sys/param.h 468a1791edSMike Barcroft.Ft uint16_t 478a1791edSMike Barcroft.Fn be16toh "uint16_t big16" 488a1791edSMike Barcroft.Ft uint32_t 498a1791edSMike Barcroft.Fn be32toh "uint32_t big32" 508a1791edSMike Barcroft.Ft uint64_t 518a1791edSMike Barcroft.Fn be64toh "uint64_t big64" 528a1791edSMike Barcroft.Ft uint16_t 538a1791edSMike Barcroft.Fn htobe16 "uint16_t host16" 548a1791edSMike Barcroft.Ft uint32_t 558a1791edSMike Barcroft.Fn htobe32 "uint32_t host32" 568a1791edSMike Barcroft.Ft uint64_t 578a1791edSMike Barcroft.Fn htobe64 "uint64_t host64" 588a1791edSMike Barcroft.Ft uint16_t 598a1791edSMike Barcroft.Fn htole16 "uint16_t host16" 608a1791edSMike Barcroft.Ft uint32_t 618a1791edSMike Barcroft.Fn htole32 "uint32_t host32" 628a1791edSMike Barcroft.Ft uint64_t 638a1791edSMike Barcroft.Fn htole64 "uint64_t host64" 648a1791edSMike Barcroft.Ft uint16_t 658a1791edSMike Barcroft.Fn le16toh "uint16_t little16" 668a1791edSMike Barcroft.Ft uint32_t 678a1791edSMike Barcroft.Fn le32toh "uint32_t little32" 688a1791edSMike Barcroft.Ft uint64_t 698a1791edSMike Barcroft.Fn le64toh "uint64_t little64" 708a1791edSMike Barcroft.Sh DESCRIPTION 718a1791edSMike BarcroftThe 728a1791edSMike Barcroft.Fn be16toh , 738a1791edSMike Barcroft.Fn be32toh , 748a1791edSMike Barcroftand 758a1791edSMike Barcroft.Fn be64toh 768a1791edSMike Barcroftfunctions return a big endian byte ordered integer 778a1791edSMike Barcroftconverted to the system's native byte order. 788a1791edSMike BarcroftThe return value will be the same as the argument on big endian systems. 798a1791edSMike Barcroft.Pp 808a1791edSMike BarcroftThe 818a1791edSMike Barcroft.Fn le16toh , 828a1791edSMike Barcroft.Fn le32toh , 838a1791edSMike Barcroftand 848a1791edSMike Barcroft.Fn le64toh 858a1791edSMike Barcroftfunctions return a little endian byte ordered integer 868a1791edSMike Barcroftconverted to the system's native byte order. 878a1791edSMike BarcroftThe return value will be the same as the argument on little endian systems. 888a1791edSMike Barcroft.Pp 898a1791edSMike BarcroftThe 908a1791edSMike Barcroft.Fn htobe16 , 918a1791edSMike Barcroft.Fn htobe32 , 928a1791edSMike Barcroftand 938a1791edSMike Barcroft.Fn htobe64 948a1791edSMike Barcroftfunctions return a integer in the system's native 958a1791edSMike Barcroftbyte order converted to big endian byte order. 968a1791edSMike BarcroftThe return value will be the same as the argument on big endian systems. 978a1791edSMike Barcroft.Pp 988a1791edSMike BarcroftThe 998a1791edSMike Barcroft.Fn htole16 , 1008a1791edSMike Barcroft.Fn htole32 , 1018a1791edSMike Barcroftand 1028a1791edSMike Barcroft.Fn htole64 1038a1791edSMike Barcroftfunctions return a integer in the system's native 1048a1791edSMike Barcroftbyte order converted to little endian byte order. 1058a1791edSMike BarcroftThe return value will be the same as the argument on little endian systems. 1068a1791edSMike Barcroft.Sh SEE ALSO 1078a1791edSMike Barcroft.Xr byteorder 3 1088a1791edSMike Barcroft.Sh HISTORY 1098a1791edSMike BarcroftThese functions first appeared in 1108a1791edSMike Barcroft.Fx 5.0 , 1118a1791edSMike Barcroftand were originally developed by the 1128a1791edSMike Barcroft.Nx 1138a1791edSMike Barcroftproject. 114