/* Error values from "get_interface_list()/capture_interface_list()". */
#define CANT_GET_INTERFACE_LIST 1 /* error getting list */
#define NO_INTERFACES_FOUND 2 /* list is empty */
+#define DONT_HAVE_PCAP 3 /* couldn't load WinPcap */
void free_interface_list(GList *if_list);