Method unpack

recipes/Python/577649_dhcp_query/recipe-577649.py:69–79

(self)

        self.unpack()
    
    def unpack(self):
        if self.data[4:8] == self.transID :
            self.offerIP = '.'.join(map(lambda x:str(x), data[16:20]))
            self.nextServerIP = '.'.join(map(lambda x:str(x), data[20:24]))  #c'est une option
            self.DHCPServerIdentifier = '.'.join(map(lambda x:str(x), data[245:249]))
            self.leaseTime = str(struct.unpack('!L', data[251:255])[0])
            self.router = '.'.join(map(lambda x:str(x), data[257:261]))
            self.subnetMask = '.'.join(map(lambda x:str(x), data[263:267]))
            dnsNB = int(data[268]/4)
            for i in range(0, 4 * dnsNB, 4):
                self.DNS.append('.'.join(map(lambda x:str(x), data[269 + i :269 + i + 4])))
                
    def printOffer(self):
        key = ['DHCP Server', 'Offered IP address', 'subnet mask', 'lease time (s)' , 'default gateway']