pcap_get_tstamp_precision - get the time stamp precision returned in captures
#include <pcap/pcap.h>
int pcap_get_tstamp_precision(pcap_t *p);
pcap_get_tstamp_precision() returns the precision of the time stamp
returned in packet captures on the pcap descriptor.
pcap_get_tstamp_precision() returns PCAP_TSTAMP_PRECISION_MICRO or
PCAP_TSTAMP_PRECISION_NANO, which indicates that pcap captures contains
time stamps in microseconds or nanoseconds respectively.
pcap(3), pcap_set_tstamp_precision(3), pcap-tstamp(7)