pcap_set_tstamp_precision(3pcap) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | BACKWARD COMPATIBILITY | SEE ALSO | COLOPHON


PCAP_SET_TSTAMP_PRECISION(3PCAP)            PCAP_SET_TSTAMP_PRECISION(3PCAP)

NAME         top

       pcap_set_tstamp_precision  - set the time stamp precision returned in
       captures

SYNOPSIS         top

       #include <pcap/pcap.h>

       int pcap_set_tstamp_precision(pcap_t *p, int tstamp_precision);

DESCRIPTION         top

       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         top

       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         top

       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         top

       pcap(3PCAP), pcap_get_tstamp_precision(3PCAP), pcap-tstamp(7)

COLOPHON         top

       This page is part of the libpcap (packet capture library) project.
       Information about the project can be found at 
       ⟨http://www.tcpdump.org/⟩.  If you have a bug report for this manual
       page, see ⟨http://www.tcpdump.org/#patches⟩.  This page was obtained
       from the project's upstream Git repository
       ⟨https://github.com/the-tcpdump-group/libpcap.git⟩ on 2020-09-18.
       (At that time, the date of the most recent commit that was found in
       the repository was 2020-09-15.)  If you discover any rendering prob‐
       lems in this HTML version of the page, or you believe there is a bet‐
       ter or more up-to-date source for the page, or you have corrections
       or improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to man-pages@man7.org

                               23 August 2018PCAP_SET_TSTAMP_PRECISION(3PCAP)