PCAP_SET_TSTAMP_PRECISION(3)                  FreeBSD Library Functions Manual

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(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)