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 specified by tstamp_precision.  It must be called on a pcap descriptor created 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_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(3PCAP), pcap_get_tstamp_precision(3PCAP), pcap-tstamp(7)

                                                 23 August 2018                 PCAP_SET_TSTAMP_PRECISION(3PCAP)