02-25-2013
How can i store the Listen IP address to a bash variable given a particular pid ?
I understand that different pids running on the same host may have different listen IP addresses.
Please try to give me the most generic command / script which needs no or less modification running on different operating systems.
Last edited by mohtashims; 02-26-2013 at 08:05 AM..
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LEARN ABOUT OPENDARWIN
listen
LISTEN(2) BSD System Calls Manual LISTEN(2)
NAME
listen -- listen for connections on a socket
SYNOPSIS
#include <sys/socket.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 VALUES
A 0 return value indicates success; -1 indicates an error.
ERRORS
Listen() will fail if:
[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 operation listen().
SEE ALSO
accept(2), connect(2), socket(2)
BUGS
The backlog is currently limited (silently) to 128.
HISTORY
The listen() function call appeared in 4.2BSD.
4.2 Berkeley Distribution December 11, 1993 4.2 Berkeley Distribution