1.\" 2.\" The contents of this file are subject to the terms of the 3.\" Common Development and Distribution License (the "License"). 4.\" You may not use this file except in compliance with the License. 5.\" 6.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 7.\" or http://www.opensolaris.org/os/licensing. 8.\" See the License for the specific language governing permissions 9.\" and limitations under the License. 10.\" 11.\" When distributing Covered Code, include this CDDL HEADER in each 12.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE. 13.\" If applicable, add the following below this CDDL HEADER, with the 14.\" fields enclosed by brackets "[]" replaced with your own identifying 15.\" information: Portions Copyright [yyyy] [name of copyright owner] 16.\" 17.\" 18.\" Copyright 1989 AT&T 19.\" Copyright (c) 2008, Sun Microsystems, Inc. All Rights Reserved 20.\" Copyright 2018 Nexenta Systems, Inc. 21.\" 22.Dd August 2, 2018 23.Dt BYTEORDER 3C 24.Os 25.Sh NAME 26.Nm byteorder , 27.Nm htonl , 28.Nm htonll , 29.Nm htons , 30.Nm ntohl , 31.Nm ntohll , 32.Nm ntohs 33.Nd convert values between host and network byte order 34.Sh LIBRARY 35.Lb libc 36.Sh SYNOPSIS 37.In sys/types.h 38.In netinet/in.h 39.In inttypes.h 40.Ft uint32_t 41.Fo htonl 42.Fa "uint32_t hostlong" 43.Fc 44.Ft uint64_t 45.Fo htonll 46.Fa "uint64_t hostlonglong" 47.Fc 48.Ft uint16_t 49.Fo htons 50.Fa "uint16_t hostshort" 51.Fc 52.Ft uint32_t 53.Fo ntohl 54.Fa "uint32_t netlong" 55.Fc 56.Ft uint64_t 57.Fo ntohll 58.Fa "uint64_t netlonglong" 59.Fc 60.Ft uint16_t 61.Fo ntohs 62.Fa "uint16_t netshort" 63.Fc 64.Sh DESCRIPTION 65These functions convert 16-bit, 32-bit, and 64-bit quantities between network 66byte order and host byte order. 67On some architectures these routines are defined as 68.Dv NULL 69macros in the include file 70.In netinet/in.h . 71On other architectures, the routines are functional when the host byte order is 72different from network byte order. 73.Pp 74These functions are most often used in conjunction with Internet addresses and 75ports as returned by 76.Xr gethostent 3NSL 77and 78.Xr getservent 3SOCKET . 79.Sh MT-LEVEL 80.Sy Safe 81.Sh SEE ALSO 82.Xr inet.h 3HEAD , 83.Xr gethostent 3NSL , 84.Xr getservent 3SOCKET , 85.Xr attributes 7 , 86.Xr byteorder 7 87