htonl(3XNET)					   X/Open Networking Services Library Functions 				      htonl(3XNET)

NAME

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

SYNOPSIS

       cc [ flag ... ] file ... -lxnet [ library ... ]
       #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

       These functions convert 16-bit and 32-bit quantities between network byte order and host byte order.

       The  uint32_t and  uint16_t types are made available by inclusion of <inttypes.h>.

USAGE

       These  functions  are  most  often  used  in  conjunction  with	Internet  addresses and ports as returned by gethostent(3XNET) and getser-
       vent(3XNET).

       On some architectures these functions are defined as macros that expand to the value of their argument.

RETURN VALUES

       The htonl() and htons() functions return the argument value converted from host to network byte order.

       The ntohl() and ntohs() functions return the argument value converted from network to host byte order.

ERRORS

       No errors are defined.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       endhostent(3XNET), endservent(3XNET), attributes(5), standards(5)

SunOS 5.11							    10 Jun 2002 						      htonl(3XNET)