From Scott Gifford:

From Scott Gifford:

	Add a new "pcap_findalldevs()" routine to get a list of all
	interfaces that can be opened with "pcap_open_live()", and a
	"pcap_freealldevs()" routine to free the list.

	Make "pcap_lookupdev()" use it, which also arranges that it will
	not return a device that cannot be opened by "pcap_open_live()".

	Allow the "any" device to be opened, on Linux, with "promisc"
	non-zero; ignore the request for promiscuity, and return a
	warning message indicating that promiscuous mode isn't supported
	on the "any" device.

Document "pcap_findalldevs()" and "pcap_lookupdev()", and clean up some
items in the libpcap man page.