Updated: 2021/Apr/14

PCAP_SET_TSTAMP_TYPE(3)    Library Functions Manual    PCAP_SET_TSTAMP_TYPE(3)

       pcap_set_tstamp_type - set the time stamp type to be used by a capture

       #include <pcap/pcap.h>

       int pcap_set_tstamp_type(pcap_t *p, int tstamp_type);

       pcap_set_tstamp_type() sets the type of time stamp desired for packets
       captured on the pcap descriptor to the type specified by tstamp_type.
       It must be called on a pcap descriptor created by pcap_create(3) that
       has not yet been activated by pcap_activate(3).
       pcap_list_tstamp_types(3) will give a list of the time stamp types
       supported by a given capture device.  See pcap-tstamp(7) for a list of
       all the time stamp types.

       pcap_set_tstamp_type() returns 0 on success if the specified time stamp
       type is expected to be supported by the capture device,
       PCAP_WARNING_TSTAMP_TYPE_NOTSUP if the specified time stamp type is not
       supported by the capture device, PCAP_ERROR_ACTIVATED if called on a
       capture handle that has been activated, and
       PCAP_ERROR_CANTSET_TSTAMP_TYPE if the capture device doesn't support
       setting the time stamp type (only older versions of libpcap will return
       that; newer versions will always allow the time stamp type to be set to
       the default type).

       This function became available in libpcap release 1.2.1.  In previous
       releases, the time stamp type cannot be set; only the default time
       stamp type offered by a capture source is available.

       pcap(3), pcap_tstamp_type_name_to_val(3)

                                22 August 2018         PCAP_SET_TSTAMP_TYPE(3)