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Command: ntohs | Section: 3 | Source: MINIX | File: ntohs.3
BYTEORDER(3) FreeBSD Library Functions Manual BYTEORDER(3)
NAME
htonl, htons, ntohl, ntohs - convert values between host and network byte
order
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <arpa/inet.h>
uint32_t
htonl(uint32_t host32);
uint16_t
htons(uint16_t host16);
uint32_t
ntohl(uint32_t net32);
uint16_t
ntohs(uint16_t net16);
DESCRIPTION
These routines convert 16 and 32 bit quantities between network byte
order and host byte order.
On machines which have a byte order which is the same as the network
order, these routines are defined as macros that expand to the value of
their argument.
These routines are most often used in conjunction with Internet addresses
and ports as returned by gethostbyname(3) and getservent(3).
SEE ALSO
bswap(3), gethostbyname(3), getservent(3)
STANDARDS
The described functions conform to IEEE Std 1003.1-2001 ("POSIX.1").
HISTORY
The byteorder functions appeared in 4.2BSD.
BUGS
The `l' and `s' suffixes in the names are not meaningful in machines
where long integers are not 32 bits.
FreeBSD 14.1-RELEASE-p8 May 3, 2011 FreeBSD 14.1-RELEASE-p8