uint32_t
htonl(
uint32_t host32
)
uint16_t
htons(
uint16_t host16
)
uint32_t
ntohl(
uint32_t net32
)
uint16_t
ntohs(
uint16_t net16
)
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).
),
htons(
),
ntohl(
),
and
ntohs(
)
functions conform to
IEEE Std 1003.1-2001 (``POSIX.1'') .
Their use of the fixed-width integer types
uint16_t
and
uint32_t
first appeared in
X/Open Networking Services Issue 5 (``XNS5'') .