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NetBSD 6.1.5 - man page for ntohl (netbsd section 3)

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

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

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <arpa/inet.h>

     uint32_t
     htonl(uint32_t host32);

     uint16_t
     htons(uint16_t host16);

     uint32_t
     ntohl(uint32_t net32);

     uint16_t
     ntohs(uint16_t net16);

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, these routines
     are defined as macros that expand to the value of their argument.

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

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

STANDARDS
     The described functions conform to IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY
     The byteorder functions appeared in 4.2BSD.

BUGS
     The `l' and `s' suffixes in the names are not meaningful in machines where long integers are
     not 32 bits.

BSD					   May 3, 2011					      BSD
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