pcap_freecode(3) free a BPF program


#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() 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().