How to get the ip addresses of a nic

[Rob Nikander]

Bo Jacobsen wrote:
> Is there a simple way to get all the ip addresses of a nic, beyound parsing
> /etc/sysconfig/.....
> 
> -------------------------------------------------
> Bo Jacobsen
> 
> 

I just had to do deal with this BS a couple days ago.  I couldn't get 
the socket module to give it to me.  The only ways I found were parsing 
the output of ifconfig (or equivalent on other platforms) or connecting 
to server and then looking at your socket.  I don't like either one.

Rob

# Method 1

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('somewebserver', 80))
return s.getsockname()[0]

# Method 2

if sys.platform == 'linux2':
     out = commands.getoutput('/sbin/ifconfig')
     return re.search('inet addr:(.+?)\s', out).group(1)
elif sys.platform == 'win32':
     si, so = os.popen4('route print')
     out = so.read()
     ipPatt = r'\d+\.\d+\.\d+.\d+'
     return re.search(r'0\.0\.0\.0\s+0\.0\.0\.0\s+' + ipPatt + r'\s+(' + 
ipPatt + ')', out).group(1)
elif sys.platform == 'freebsd5':
     out = commands.getoutput('/sbin/ifconfig')
     return re.search('inet (\S+)\s', out).group(1)
else:
     raise Exception('unsupported platform: %s' % sys.platform)