pcap_set_promisc - set promiscuous mode for a not-yet-activated capture handle
#include <pcap/pcap.h>
int pcap_set_promisc(pcap_t *p, int promisc);
pcap_set_promisc() sets whether promiscuous mode should be set on a
capture handle when the handle is activated. If promisc is non-zero,
promiscuous mode will be set, otherwise it will not be set.
pcap_set_promisc() returns 0 on success or PCAP_ERROR_ACTIVATED if
called on a capture handle that has been activated.
pcap(3), pcap_create(3), pcap_activate(3)