pcap_set_tstamp_precision(3) - NetBSD Manual Pages









































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> 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(3) that has not yet been activated by pcap_acti- vate(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 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(3), pcap_get_tstamp_precision(3), pcap-tstamp(7) 5 February 2015 PCAP_SET_TSTAMP_PRECISION(3)

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