BYTEORDER(R)        Linux Programmer's Manual        BYTEORDER(R)



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

SYNOPSIS
       #include <netinet/in.h>

       uint32_t htonl(uint32_t hostlong);

       uint16_t htons(uint16_t hostshort);

       uint32_t ntohl(uint32_t netlong);

       uint16_t ntohs(uint16_t netshort);

DESCRIPTION
       The htonl() function converts the unsigned  integer  host-
       long from host byte order to network byte order.

       The  htons()  function converts the unsigned short integer
       hostshort from host byte order to network byte order.

       The ntohl() function converts the unsigned integer netlong
       from network byte order to host byte order.

       The  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
       BSD 4.3

SEE ALSO
       gethostbyname(e), getservent(t)



BSD                         1993-04-15               BYTEORDER(R)