| LISTEN(2) | System Calls Manual | LISTEN(2) |
listen —
#include <sys/socket.h>
int
listen(int
s, int
backlog);
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.
listen() will fail if:
EBADF]ENOTSOCK]EOPNOTSUPP]listen().listen() function call appeared in
4.2BSD.
| December 11, 1993 | NetBSD 9.4 |