byteorder(3N) DG/UX 4.30 byteorder(3N)
NAME
htonl, htons, ntohl, ntohs - convert values between host and
network byte order
SYNOPSIS
#include <sys/types.h>
#include <netinet/in.h>
netlong = htonl(hostlong);
ulong netlong, hostlong;
netshort = htons(hostshort);
ushort netshort, hostshort;
hostlong = ntohl(netlong);
ulong hostlong, netlong;
hostshort = ntohs(netshort);
ushort hostshort, netshort;
DESCRIPTION
These routines convert 16- and 32-bit quantities between
network byte order and host byte order. These routines are
defined as null macros in the include file netinet/in.h.
These routines are most often used with Internet addresses
and ports as returned by gethostent(3N) and getservent(3N).
SEE ALSO
gethostent(3N), getservent(3N)
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