pcap_dump_flush − flush to a savefile packets dumped
#include <pcap/pcap.h>
int pcap_dump_flush(pcap_dumper_t *p);
pcap_dump_flush() flushes the output buffer to the ‘‘savefile,’’ so that any packets written with pcap_dump() but not yet written to the ‘‘savefile’’ will be written.
pcap_dump_flush() returns 0 on success and −1 on failure.
pcap(3PCAP), pcap_dump_open(3PCAP), pcap_dump(3PCAP)