pSOSystem System Calls - Read

socket pNA+ System Calls
socket Creates a socket.
#include
int socket(
int domain, /* socket domain */
int type, /* socket type carrier */
int protocol /* socket protocol class */
)
Description
Arguments
Return Value
The socket() system call creates a new socket and returns its socket descriptor.
The socket is an endpoint of communication.
domain Specifies the socket domain and must be set to AF_INET.
type Specifies one of the following types of sockets (defined in the
file):
SOCK_STREAM Defines a stream socket, which uses TCP to
provide a reliable connection-based communication
service.
SOCK_DGRAM Defines a datagram socket, which uses UDP to
provide a datagram service.
SOCK_RAW Defines a raw socket, which uses the protocol
specified by protocol for a raw datagram service.
protocol Specifies the network protocol and can be 0, TCP, UDP, or any
other protocol. For raw sockets the protocol can have any value
except TCP or UDP. A protocol number of zero acts as a wildcard
for raw sockets, accepting any raw IP packet.
This system call returns a socket descriptor, or a -1 if an error occurs.
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