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NAME
listen - listen for connections on a socket
SYNOPSIS
#include <network.h>
int listen(int s, int backlog);
DESCRIPTION
To accept connections, a socket is first created with
socket(2), a willingness to accept incoming connections
and a queue limit for incoming connections are specified
with listen, and then the connections are accepted with
accept(2). The listen call applies only to sockets of
type SOCK_STREAM or SOCK_SEQPACKET.
The backlog parameter defines the maximum length the queue
of pending connections may grow to. If a connection
request arrives with the queue full the client may receive
an error with an indication of ECONNREFUSED or, if the
underlying protocol supports retransmission, the request
may be ignored so that retries may succeed.
RETURN VALUE
On success, zero is returned. On error, -1 is returned,
and errno is set appropriately.
ERRORS
EBADF The argument s is not a valid descriptor.
ENOTSOCK
The argument s is not a socket.
EOPNOTSUPP
The socket is not of a type that supports the lis-
ten operation.
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