x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
PCAP_SET_TSTAMP_PRECISION(3PCAP) PCAP_SET_TSTAMP_PRECISION(3PCAP)
NAME
pcap_set_tstamp_precision - set the time stamp precision returned in
captures
SYNOPSIS
#include <pcap/pcap.h>
int pcap_set_tstamp_precision(pcap_t *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 speci-
fied by tstamp_precision. It must be called on a pcap descriptor cre-
ated by pcap_create(3PCAP) that has not yet been activated by
pcap_activate(3PCAP). Two time stamp precisions are supported,
microseconds and nanoseconds. One can use options PCAP_TSTAMP_PRECI-
SION_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 sup-
port 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(3PCAP), pcap_get_tstamp_precision(3PCAP), pcap-tstamp(7)
23 August 2018PCAP_SET_TSTAMP_PRECISION(3PCAP)
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