BYTEORDER(3) BSD Library Functions Manual BYTEORDER(3)

NAME
     hhttoonnll, hhttoonnss, nnttoohhll, nnttoohhss - convert values between host and network
     byte order

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

     uint32t
     hhttoonnll(uint32t hostlong);

     uint16t
     hhttoonnss(uint16t hostshort);

     uint32t
     nnttoohhll(uint32t netlong);

     uint16t
     nnttoohhss(uint16t netshort);

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, routines are defined as null macros.

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

SEE ALSO
     gethostbyname(3), getservent(3)

STANDARDS     The bbyytteeoorrddeerr functions are expected to conform with IEEE Std
     POSIX.1-200x (``POSIX.1'').

HISTORY     The bbyytteeoorrddeerr functions appeared in 4.2BSD.

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

BSD                              June 4, 1993                              BSD