61 lines
1.5 KiB
Python
61 lines
1.5 KiB
Python
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import dns.resolver
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import ifcfg
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import json
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import socket
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import struct
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import sys
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import time
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def gateway(device):
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with open("/proc/net/route") as fh:
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# skip header
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next(fh)
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for line in fh:
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routes = line.strip().split()
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if routes[0] == device:
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destination = socket.inet_ntoa(struct.pack("<L", int(routes[1], 16)))
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if destination != "0.0.0.0":
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continue
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return socket.inet_ntoa(struct.pack("<L", int(routes[2], 16)))
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try:
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DEVICE = sys.argv[1]
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except IndexError:
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print("You need to give the device name as first argument")
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sys.exit()
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HRN = { # Human Readable Name
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'MAC': 'ether',
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'MTU': 'mtu',
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'IP': 'inet',
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'Netmask': 'netmask',
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}
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try:
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info = ifcfg.interfaces()[DEVICE]
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except KeyError:
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print("Unknown device:", DEVICE)
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sys.exit(1)
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try:
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dns_resolver = dns.resolver.Resolver()
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except dns.resolver.NoResolverConfiguration:
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dns_server = []
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else:
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dns_server = dns_resolver.nameservers
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print('+' + 27 * '-' + '+')
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print("|%9s: %s" % ('Device', DEVICE) + (16 - len(DEVICE)) * ' ' + '|')
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print('+' + 27 * '-' + '+')
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for name in HRN:
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print("%10s: %s" % (name, info[HRN[name]]))
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print("%10s: %s" % ('Gateway', gateway(DEVICE)))
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try:
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print("%10s: %s" % ("Domain", socket.getfqdn().split('.', 1)[1]))
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except IndexError:
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print("%10s: None" % "Domain")
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for i, dns in enumerate(dns_server):
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print("%10s: %s" % ("DNS_%d" % (i + 1), dns))
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