htons(3socket) [opensolaris man page]

byteorder(3SOCKET)					     Sockets Library Functions						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 ALSO

       gethostbyname(3NSL), getservbyname(3SOCKET), inet.h(3HEAD), attributes(5)

SunOS 5.11							    10 Sep 2008 						byteorder(3SOCKET)

BYTEORDER(3)						     Linux Programmer's Manual						      BYTEORDER(3)

NAME

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

SYNOPSIS

       #include <arpa/inet.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

       The htonl() function converts the unsigned integer hostlong from host byte order to network byte order.

       The htons() function converts the unsigned short integer hostshort from host byte order to network byte order.

       The ntohl() function converts the unsigned integer netlong from network byte order to host byte order.

       The ntohs() function converts the unsigned short integer netshort from network byte order to host byte order.

       On  the i386 the host byte order is Least Significant Byte first, whereas the network byte order, as used on the Internet, is Most Signifi-
       cant Byte first.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +-----------------------------------+---------------+---------+
       |Interface			   | Attribute	   | Value   |
       +-----------------------------------+---------------+---------+
       |htonl(), htons(), ntohl(), ntohs() | Thread safety | MT-Safe |
       +-----------------------------------+---------------+---------+
CONFORMING TO

       POSIX.1-2001, POSIX.1-2008.

       Some systems require the inclusion of <netinet/in.h> instead of <arpa/inet.h>.

SEE ALSO

       bswap(3), endian(3), gethostbyname(3), getservent(3)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2017-09-15							      BYTEORDER(3)