Manual Pages  — PCAP_FREECODE

#include <pcap/pcap.h>

void pcap_freecode(struct bpf_program *);

pcap_freecode() is used to free up allocated memory pointed to by a bpf_program struct generated by pcap_compile(3) when that BPF program is no longer needed, for example after it has been made the filter program for a pcap structure by a call to pcap_setfilter(3).

pcap(3)