BYTEORDER
Section: C Library Functions (3)
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BSD mandoc
BSD 4.2
NAME
htonl
htons
ntohl
ntohs
- convert values between host and network byte order
SYNOPSIS
Fd #include <sys/param.h>
Ft u_long
Fn htonl u_long hostlong
Ft u_short
Fn htons u_short hostshort
Ft u_long
Fn ntohl u_long netlong
Ft u_short
Fn ntohs u_short 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)
HISTORY
The
byteorder
functions appeared in
BSD 4.2
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.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- SEE ALSO
-
- HISTORY
-
- BUGS
-
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Time: 21:44:10 GMT, August 05, 2022