[Winpcap-users] pcap_loop pointers

[ceo at triplebit.com]

I think that my question represents also other users.
When using the function "pcap_loop"  the system uses the fallowing callback
whenever a packet arrives -

      typedef void(* pcap_handler)(u_char *user, const struct pcap_pkthdr
*pkt_header, const u_char *pkt_data)


My questions-

1. I saw that the pointers pkt_data and pkt_header differ from packet to
packet.
Does that mean that the data on which they point occupies different area in
memory?
2. How do I know if the data pointed by them is still valid in a certain
moment?

Regards

I. Lesher

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