-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > A pcap_t structure, as of 0.8, contains a list of function pointers for > various libpcap operations; look for "Methods" in pcap-int.h. > > You'd add a "direction_op" member, which would be a function with the > same arguments as pcap_direction(). pcap_direction() would just call > that function and return its return value. > > Each pcap-*.c file for a particular platform would contain the > appropriate function for that platform, e.g. > "pcap_setdirection_linux()"; that would be a static function. In the > code to open a capture, the "direction_op" member of the pcap_t would be > set to point to that function. > > What needs to be determined is not the operating system, but the capture > mechanism. That's already done by the configure script - that's what > determines which pcap-*.c file to compile, so doing it the way I > describe above handles that for you.
That's great, I'll try to code this today. > Should the function be called "pcap_direction()", "pcap_setdirection()", > or something else? "pcap_setdirection()" indicates that it sets > something, but "direction" doesn't indicate which direction it's > setting, so "pcap_direction()" might be sufficient. Well I'm not good at naming things, but pcap_setdirection() sounds like pcap_setfilter() function. This functions are quite related in functionality, because they both set some start parameters. But I leave that strategic decision to main pcap developers :) Greetings, Pawel Pokrywka -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iQD1AwUBQndbNwYJ6m8RUpKnAQI7AAb/aKPFjbUr8KU1B7OTX8cMvvOC1XKdFpq1 zQEI3nPrabDDzbQDlYm3KaZngK2f83OOcih0dwC7iSLGGZFErPG1CdPWNO/CrMQS 5+UYlbLNgolyXA/XvZr8rbtRXZlyjVcwZH7mP6Q44V+sTd9ZA0hlsyhVmwoxsSd1 McNaZRAjhsuYYwKy7VBUzLeS0l/7DqYHoLDtNAEof04Yuy5vi6LMqsXFEVJRV5Uy TjYhPgiGyCXBmL4Cegk+CCIZS6J0eEFbvvYEs99Aeu6gq4Qfb4KvGQ2aIfsG8SL3 DQzy+VNhxjU= =idSm -----END PGP SIGNATURE----- - This is the tcpdump-workers list. Visit https://lists.sandelman.ca/ to unsubscribe.
