byteorder(3N)                                       byteorder(3N)



NAME
     htonl, htons, ntohl, ntohs - convert values between host and
     network byte order

SYNOPSIS
     #include <sys/types.h>
     #include <netinet/in.h>

     u_long htonl(hostlong);
     u_long hostlong;

     u_short htons(hostshort);
     u_short hostshort;

     u_long ntohl(netlong);
     u_long netlong;

     u_short ntohs(netshort);
     u_short netshort;

DESCRIPTION
     These macros convert 16 and 32 bit quantities between
     network byte order and host byte order.  On machines in the
     Motorola 68000-family such as the Macintosh II, 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 getservent(3N).

SEE ALSO
     getservent(3N)























January 1992                                                    1