Portable (Linux/Mac/Win) way to get network interfaces names andtheir addresses?

[Alessio Pace]

Hi,

I'm wondering how could I get, possibly in a pure Python solution, the
list of network addresses on a machine and the IP address of each of
them.

In fact I came across recently on two solutions, one that is pure
Python but that works only on Linux:

#############################
def all_interfaces():
max_possible = 128 # arbitrary. raise if needed.
bytes = max_possible * 32
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
names = array.array('B', '\0' * bytes)
outbytes = struct.unpack('iL', fcntl.ioctl(
s.fileno(),
0x8912, # SIOCGIFCONF
struct.pack('iL', bytes, names.buffer_info()[0])
))[0]
namestr = names.tostring()
return [namestr[i:i+32].split('\0', 1)[0] for i in range(0,
outbytes, 32)]

def get_ip_address(ifname):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
return socket.inet_ntoa(fcntl.ioctl(
s.fileno(),
0x8915, # SIOCGIFADDR
struct.pack('256s', ifname[:15])
)[20:24])
###########################

and one other instead that is in the "netifaces" package (=>
http://alastairs-place.net/netifaces/) which is written in C.


Thanks in advance for any suggestion.