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#!/usr/bin/env python

# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

"""

A clone of 'netstat -antp' on Linux.

$ python scripts/netstat.py

Proto Local address Remote address Status PID Program name

tcp 127.0.0.1:48256 127.0.0.1:45884 ESTABLISHED 13646 chrome

tcp 127.0.0.1:47073 127.0.0.1:45884 ESTABLISHED 13646 chrome

tcp 127.0.0.1:47072 127.0.0.1:45884 ESTABLISHED 13646 chrome

tcp 127.0.0.1:45884 - LISTEN 13651 GoogleTalkPlugi

tcp 127.0.0.1:60948 - LISTEN 13651 GoogleTalkPlugi

tcp 172.17.42.1:49102 127.0.0.1:19305 CLOSE_WAIT 13651 GoogleTalkPlugi

tcp 172.17.42.1:55797 127.0.0.1:443 CLOSE_WAIT 13651 GoogleTalkPlugi

...

"""

import socket

from socket import AF_INET, SOCK_STREAM, SOCK_DGRAM

import psutil

AD = "-"

AF_INET6 = getattr(socket, 'AF_INET6', object())

proto_map = {

(AF_INET, SOCK_STREAM): 'tcp',

(AF_INET6, SOCK_STREAM): 'tcp6',

(AF_INET, SOCK_DGRAM): 'udp',

(AF_INET6, SOCK_DGRAM): 'udp6',

}

def main():

templ = "%-5s %-30s %-30s %-13s %-6s %s"

print(templ % (

"Proto", "Local address", "Remote address", "Status", "PID",

"Program name"))

proc_names = {}

for p in psutil.process_iter():

try:

proc_names[p.pid] = p.name()

except psutil.Error:

pass

for c in psutil.net_connections(kind='inet'):

laddr = "%s:%s" % c.laddr

raddr = ""

if c.raddr:

raddr = "%s:%s" % c.raddr

print(templ % (

proto_map[(c.family, c.type)],

laddr,

raddr or AD,

c.status,

c.pid or AD,

proc_names.get(c.pid, '?')[:15],

))

if __name__ == '__main__':

main()