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+'\" t
+.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.\" References consulted:
+.\"     Linux libc source code
+.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
+.\"     386BSD man pages
+.\" Modified Sat Jul 24 21:29:05 1993 by Rik Faith (faith@cs.unc.edu)
+.\" Modified Thu Jul 26 14:06:20 2001 by Andries Brouwer (aeb@cwi.nl)
+.\"
+.TH BYTEORDER 3 2023-07-20 "Linux man-pages 6.05.01"
+.SH NAME
+htonl, htons, ntohl, ntohs \- convert values between host and network
+byte order
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <arpa/inet.h>
+.PP
+.BI "uint32_t htonl(uint32_t " hostlong );
+.BI "uint16_t htons(uint16_t " hostshort );
+.PP
+.BI "uint32_t ntohl(uint32_t " netlong );
+.BI "uint16_t ntohs(uint16_t " netshort );
+.fi
+.SH DESCRIPTION
+The
+.BR htonl ()
+function converts the unsigned integer
+.I hostlong
+from host byte order to network byte order.
+.PP
+The
+.BR htons ()
+function converts the unsigned short integer
+.I hostshort
+from host byte order to network byte order.
+.PP
+The
+.BR ntohl ()
+function converts the unsigned integer
+.I netlong
+from network byte order to host byte order.
+.PP
+The
+.BR ntohs ()
+function converts the unsigned short integer
+.I netshort
+from network byte order to host byte order.
+.PP
+On the i386 the host byte order is Least Significant Byte first,
+whereas the network byte order, as used on the Internet, is Most
+Significant Byte first.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbx lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.na
+.nh
+.BR htonl (),
+.BR htons (),
+.BR ntohl (),
+.BR ntohs ()
+T}	Thread safety	MT-Safe
+.TE
+.sp 1
+.SH STANDARDS
+POSIX.1-2008.
+.SH HISTORY
+POSIX.1-2001.
+.SH SEE ALSO
+.BR bswap (3),
+.BR endian (3),
+.BR gethostbyname (3),
+.BR getservent (3)