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Command: listen | Section: 2 | Source: MINIX | File: listen.2
LISTEN(2) System Calls Manual LISTEN(2)
NAME
listen - listens for incoming connections on a socket
SYNOPSIS
#include <sys/socket.h>
int listen(int sd, int backlog);
DESCRIPTION
listen() puts socket sd into the listening state. backlog number of
incoming connections may be queued before new incoming connections are
refused. This function is usually called after bind(2) and before ac-
cept(2).
RETURN VALUES
On success, this function returns 0. On error, -1 is returned and errno
is set.
ERRORS
[EINVAL] The socket is invalid or bind(2) has not been called yet
for the socket.
[EOPNOTSUPP] The socket type (example SOCK_DGRAM) does not support
listening.
[ENOSYS] The socket does not support listening.
SEE ALSO
accept(2), bind(2), socket(2)
LISTEN(2)