[태그:] python

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Python, listen 된 port 의 process name 구하기

python, listen port, inode, pid, process name

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#!/usr/local/bin/python
import glob
import os
import commands
 
net = commands.getoutput("grep ' 0A ' /proc/net/tcp")
if os.path.exists('/proc/net/tcp6'):
    net6 = commands.getoutput("grep ' 0A ' /proc/net/tcp6")
    if net6:
        net += '\n'
        net += net6
 
inode2port = dict() # {inode:port}
lines = net.splitlines()
for line in lines:
    buf = line.split()
    inode2port[long(buf[9])] = int(buf[1].split(":")[1],16)
 
port2pname = {} # {port:process name}
fdlist = glob.glob('/proc/*/fd/*')
for fd in fdlist:
    try:
        pid = fd.split('/')[2]
        inode = long(os.stat(fd)[1])
        if inode in inode2port:
            pname = commands.getoutput('cat /proc/%s/status | grep Name' % pid).split()[1]
            port2pname[inode2port[inode]] = pname
    except:
        pass
 
print port2pname