BYTEORDER
NAME
htonl, htons, ntohl, ntohs - convert values between host and network
byte order
SYNOPSIS
#include <arpa/inet.h>
I uint32_t htonl(uint32_t hostlong );
I uint16_t htons(uint16_t hostshort );
I uint32_t ntohl(uint32_t netlong );
I uint16_t ntohs(uint16_t netshort );
DESCRIPTION
The
R htonl ()
function converts the unsigned integer hostlong
from host byte order to network byte order.
The
R htons ()
function converts the unsigned short integer hostshort
from host byte order to network byte order.
The
R ntohl ()
function converts the unsigned integer netlong
from network byte order to host byte order.
The
R ntohs ()
function converts the unsigned short integer netshort
from network byte order to host byte order.
On the i80x86 the host byte order is Least Significant Byte first,
whereas the network byte order, as used on the Internet, is Most
Significant Byte first.
CONFORMING TO
POSIX.1-2001.
Some systems require the inclusion of
<netinet/in.h>
instead of
R <arpa/inet.h> .
SEE ALSO
ČLÁNKY DO MAILU