The _getlong() function is used to retrieve an unsigned long byte
quantity.
Authorities and Locks
None.
Parameters
message_pointer
(Input) The pointer where the long integer is to be received from.
Return Value
_getlong() returns a 32-bit integer from where
message_pointer is pointing.
Usage Notes
DNS packets have fields that are unsigned long integers (for example, TTL
and serial number). _getlong() picks these unsigned long integers out
of a DNS packet and returns them.