ifconfig.py

ifconfig.py

import re,subprocess

def ifconfig():
    ifconfig = {}
    dev = None
    for l in subprocess.Popen('ifconfig',stdout=subprocess.PIPE).stdout:
        l = l.decode('ascii').rstrip()
        m = re.match('^([a-z]+[0-9]+): flags=(.*?) (.*)',l)
        k = v = None
        if m:
            dev,flags,rest = m.groups()
            v = rest.split()
            ifconfig[dev] = {'flags':flags}
            ifconfig[dev].update(zip(v[::2],v[1::2]))
        elif dev:
            m = re.match('\s+(\w+)[:= ]+(.*)',l)
            if m:
                k,v = m.groups()
                if k in ('description','ether','groups'):
                    ifconfig[dev][k] = v
                elif k in ('inet','inet6'):
                    v = l.split()
                    addr = v[1]
                    params = dict(zip(v[::2],v[1::2]))
                    ifconfig[dev][k] = ifconfig[dev].get(k,{})
                    ifconfig[dev][k][addr] = params
                elif k in ('member'):
                    ifconfig[dev][k] = ifconfig[dev].get(k,[]) + [v]
    return ifconfig

if __name__ == '__main__':
    import pprint
    pprint.pprint(ifconfig())