utils.py 文件源码

def check_ipaddr(dst, version=4):
        '''
        Receive a hostname or IP address string and return a validated
        IP and fqdn if either can be found
        '''
        family = version_to_family(version)
        for res in socket.getaddrinfo(dst, 0, family, socket.SOCK_STREAM, 0,
                                      socket.AI_PASSIVE | socket.AI_CANONNAME):
            family, socktype, proto, canonname, sa = res
            try:
                addr = ipaddress.ip_address(unicode(sa[0]))
            except NameError:
                addr = ipaddress.ip_address(sa[0])
            return addr, canonname