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BYTEORDER(3)		    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>

       or

       #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
       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  ad-
       dresses and ports as returned by	gethostbyname(3) and getservent(3).

SEE ALSO
       gethostbyname(3), getservent(3),	byteorder(9)

STANDARDS
       The byteorder functions conform to IEEE Std 1003.1-2001 ("POSIX.1").

HISTORY
       The byteorder 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.

FreeBSD	13.2			March 20, 2005			  BYTEORDER(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS | HISTORY | BUGS

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<https://man.freebsd.org/cgi/man.cgi?query=ntohs&manpath=FreeBSD+14.0-RELEASE+and+Ports>

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