proxylib.py 文件源码

def get_dnsserver_list():
    if os.name == 'nt':
        import ctypes
        import ctypes.wintypes
        DNS_CONFIG_DNS_SERVER_LIST = 6
        buf = ctypes.create_string_buffer(2048)
        ctypes.windll.dnsapi.DnsQueryConfig(DNS_CONFIG_DNS_SERVER_LIST, 0, None, None, ctypes.byref(buf), ctypes.byref(ctypes.wintypes.DWORD(len(buf))))
        ipcount = struct.unpack('I', buf[0:4])[0]
        iplist = [socket.inet_ntoa(buf[i:i+4]) for i in xrange(4, ipcount*4+4, 4)]
        return iplist
    elif os.path.isfile('/etc/resolv.conf'):
        with open('/etc/resolv.conf', 'rb') as fp:
            return re.findall(r'(?m)^nameserver\s+(\S+)', fp.read())
    else:
        logging.warning("get_dnsserver_list failed: unsupport platform '%s-%s'", sys.platform, os.name)
        return []