BYTEORDER(3SOCKET)BYTEORDER(3SOCKET)NAME
byteorder, htonl, htonll, htons, ntohl, ntohll, ntohs - convert values
between host and network byte order
SYNOPSIS
cc [ flag... ] file... -lsocket -lnsl [ library... ]
#include <sys/types.h>
#include <netinet/in.h>
#include <inttypes.h>
uint32_t htonl(uint32_t hostlong);
uint64_t htonll(uint64_t hostlonglong);
uint16_t htons(uint16_t hostshort);
uint32_t ntohl(uint32_t netlong);
uint64_t ntonll(uint64_t hostlonglong);
uint16_t ntohs(uint16_t netshort);
DESCRIPTION
These functions convert 16-bit, 32-bit, and 64-bit quantities between
network byte order and host byte order. On some architectures these
routines are defined as NULL macros in the include file <netinet/in.h>.
On other architectures, the routines are functional when the host byte
order is different from network byte order.
These functions are most often used in conjunction with Internet
addresses and ports as returned by gethostent() and getservent(). See
gethostbyname(3NSL) and getservbyname(3SOCKET).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌───────────────┬─────────────────┐
│ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├───────────────┼─────────────────┤
│MT-Level │ Safe │
└───────────────┴─────────────────┘
SEE ALSOgethostbyname(3NSL), getservbyname(3SOCKET), inet.h(3HEAD),
attributes(5)
Sep 10, 2008 BYTEORDER(3SOCKET)