# 2.11BSD#431 - /usr/man/cat3/htons.0

    BYTEORDER(3N)	    UNIX Programmer's Manual	    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);
         u_long netlong, hostlong;

         netshort = htons(hostshort);
         u_short netshort, hostshort;

         hostlong = ntohl(netlong);
         u_long hostlong, netlong;

         hostshort = ntohs(netshort);
         u_short hostshort, netshort;

    DESCRIPTION
         These routines convert 16 and 32 bit quantities between net-
         work byte order and host byte order.  On machines such as
         the SUN these routines are defined as null macros in the
         include file <netinet/in.h>.

         These routines are most often used in conjunction with
         Internet addresses and ports as returned by
         gethostbyname(3N) and getservent(3N).

    SEE ALSO
         gethostbyname(3N), getservent(3N)

    BUGS
         The VAX handles bytes backwards from most everyone else in
         the world.  This is not expected to be fixed in the near
         future.

    Printed 11/26/99	  May 15, 1986				1

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