pcap_set_tstamp_precision(3) pcap_set_tstamp_precision(3)
NAME
pcap_set_tstamp_precision - set the time stamp precision returned in
captures
SYNOPSIS
#include <pcap/pcap.h>
pcap_set_tstamp_precision(3) *p, int tstamp_precision);
DESCRIPTION
pcap_set_tstamp_precision() sets the precision of the time stamp
desired for packets captured on the pcap descriptor to the type
specified by tstamp_precision. It must be called on a pcap descriptor
created by pcap_create(3) that has not yet been activated by
pcap_activate(3). Two time stamp precisions are supported,
microseconds and nanoseconds. One can use options
PCAP_TSTAMP_PRECISION_MICRO and PCAP_TSTAMP_PRECISION_NANO to request
desired precision. By default, time stamps are in microseconds.
RETURN VALUE
pcap_set_tstamp_precision() returns 0 on success if the specified time
stamp precision is expected to be supported by the capture device,
PCAP_ERROR_TSTAMP_PRECISION_NOTSUP if the capture device does not
support the requested time stamp precision, PCAP_ERROR_ACTIVATED if
called on a capture handle that has been activated.
BACKWARD COMPATIBILITY
This function became available in libpcap release 1.5.1. In previous
releases, time stamps from a capture device or savefile are always
given in seconds and microseconds.
SEE ALSO
pcap(3), pcap_get_tstamp_precision(3), pcap-tstamp(7)
23 August 2018
pcap_set_tstamp_precision(3)
libpcap 1.10.5 - Generated Sat Aug 31 09:44:12 CDT 2024