resource_mgr.py 文件源码

def _check_address(address):
    ipv4 = ""
    hostname = ""
    if is_valid_address(address):
        ipv4 = address
        try:
            hostname = socket.gethostbyaddr(address)[0]
        except Exception:
            pass  # no DNS
    else:
        hostname = socket.getfqdn(address)
        try:
            ipv4 = socket.gethostbyname(hostname)
        except Exception:
            pass  # host not valid or offline
    return ipv4, hostname