inet(4f) [ultrix man page]

inet(4f)																  inet(4f)

Name
       inet - Internet protocol family

Syntax
       #include <sys/types.h>
       #include <netinet/in.h>

Description
       The  Internet  protocol family is a collection of protocols that is layered on the Internet Protocol (IP) transport layer and that uses the
       Internet address format.  The Internet family provides protocol support for the SOCK_STREAM, SOCK_DGRAM, and SOCK_RAW  socket  types.   The
       SOCK_RAW interface provides access to the IP protocol.

Addressing
       Internet  addresses  are  4-byte  quantities,  stored in network standard format.  The include file defines this address as a discriminated
       union.

       Sockets bound to the Internet protocol family use the following addressing structure:
       struct sockaddr_in {
	    short     sin_family;
	    u_short   sin_port;
	    struct    in_addr sin_addr;
	    char sin_zero[8];
       };
       Sockets may be created with the address INADDR_ANY to effect ``wildcard'' matching on incoming messages.

Protocols
       The Internet protocol family comprises the IP transport protocol, Internet Control Message Protocol (ICMP), Transmission  Control  Protocol
       (TCP),  and  User Datagram Protocol (UDP).  TCP is used to support the SOCK_STREAM abstraction, while UDP is used to support the SOCK_DGRAM
       abstraction.  A raw interface to IP and ICMP is available by creating an Internet socket of type SOCK_RAW.

See Also
       tcp(4p), udp(4p), ip(4p)

																	  inet(4f)

inet(7F)																  inet(7F)

NAME

       inet - Internet protocol family

SYNOPSIS

DESCRIPTION

       The  internet  protocol	family	is a collection of protocols layered on top of the (IP) network layer, which utilizes the internet address
       format.	The internet family supports the SOCK_STREAM and SOCK_DGRAM socket types.

   Addressing
       Internet addresses are four byte entities.  The include file defines this address as the structure

       Sockets bound to the internet protocol family utilize an addressing structure called Pointers to this structure can be used in system calls
       wherever they ask for a pointer to a

       There are three fields of interest within this structure.  The first is which must be set to AF_INET.  The next is which specifies the port
       number to be used on the desired host.  The third is which is of type and specifies the address of the desired host.

   Protocols
       The internet protocol family is comprised of the IP network protocol, Internet Control Message Protocol (ICMP), Transmission Control Proto-
       col  (TCP),  and  User  Datagram Protocol (UDP).  TCP is used to support the socket type while UDP is used to support the socket type.  The
       ICMP message protocol and IP network protocol are not directly accessible.

       The local port address is selected from independent domains for TCP and UDP sockets.  This means that creating a TCP socket and binding	it
       to  local  port	number 10000, for example, does not interfere with creating a UDP socket and also binding it to local port number 10000 at
       the same time.

       Port numbers in the range 1-1023 inclusive are reserved for use by the super-user only.	Attempts to bind to port numbers in this range	by
       non-super-users fail and result in an error returned.

AUTHOR

       was developed by the University of California, Berkeley.

SEE ALSO

       tcp(7P), udp(7P).

																	  inet(7F)