pcap_major_version.3pcap - Man Page

#include <pcap/pcap.h>

int pcap_major_version(pcap_t *p);
int pcap_minor_version(pcap_t *p);

If p refers to a “savefile”, pcap_major_version() returns the major number of the file format of the “savefile” and pcap_minor_version() returns the minor number of the file format of the “savefile”.  The version number is stored in the “savefile”; note that the meaning of its values depends on the type of “savefile” (for example, pcap or pcapng).

If p refers to a live capture, the values returned by pcap_major_version() and pcap_minor_version() are not meaningful.

pcap(3PCAP)

The man page pcap_minor_version.3pcap(3) is an alias of pcap_major_version.3pcap(3).