getULong
getULong(client->new->options[DHO_DHCP_LEASE_TIME].data);
getULong(client->new->options[DHO_DHCP_RENEWAL_TIME].data);
getULong(client->new->options[DHO_DHCP_REBINDING_TIME].data);
u_int32_t getULong(unsigned char *);
foo.s_addr = htonl(getULong(dp));
(unsigned long)getULong(dp));