Local changes: - In contrib/libpcap/pcap/bpf.h, do not include pcap/dlt.h. Our system net/dlt.h is pulled in from net/bpf.h. - sys/net/dlt.h: Incorporate changes from libpcap 1.10.3. - lib/libpcap/Makefile: Update for libpcap 1.10.3. Changelog: https://git.tcpdump.org/libpcap/blob/95691ebe7564afa3faa5c6ba0dbd17e351be455a:/CHANGES Reviewed by: emaste Obtained from: https://www.tcpdump.org/release/libpcap-1.10.3.tar.gz Sponsored by: The FreeBSD Foundation
69 lines
2.4 KiB
Plaintext
69 lines
2.4 KiB
Plaintext
.\"Copyright (c) 2013, Michal Sekletar
|
|
.\"All rights reserved.
|
|
.\"
|
|
.\"Redistribution and use in source and binary forms, with or without
|
|
.\"modification, are permitted provided that the following conditions
|
|
.\"are met:
|
|
.\"
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in
|
|
.\" the documentation and/or other materials provided with the
|
|
.\" distribution.
|
|
.\" 3. The names of the authors may not be used to endorse or promote
|
|
.\" products derived from this software without specific prior
|
|
.\" written permission.
|
|
.\"
|
|
.\"THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
.\"IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
.\"WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
.TH PCAP_SET_TSTAMP_PRECISION 3PCAP "23 August 2018"
|
|
.SH NAME
|
|
pcap_set_tstamp_precision \- set the time stamp precision returned in
|
|
captures
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.ft B
|
|
#include <pcap/pcap.h>
|
|
.ft
|
|
.LP
|
|
.ft B
|
|
int pcap_set_tstamp_precision(pcap_t *p, int tstamp_precision);
|
|
.ft
|
|
.fi
|
|
.SH DESCRIPTION
|
|
.BR pcap_set_tstamp_precision ()
|
|
sets the precision of the time stamp desired for packets captured on the pcap
|
|
descriptor to the type specified by
|
|
.IR tstamp_precision .
|
|
It must be called on a pcap descriptor created by
|
|
.BR pcap_create (3PCAP)
|
|
that has not yet been activated by
|
|
.BR pcap_activate (3PCAP).
|
|
Two time stamp precisions are supported, microseconds and nanoseconds. One can
|
|
use options
|
|
.B PCAP_TSTAMP_PRECISION_MICRO and
|
|
.B PCAP_TSTAMP_PRECISION_NANO
|
|
to request desired precision. By default, time stamps are in microseconds.
|
|
.SH RETURN VALUE
|
|
.BR pcap_set_tstamp_precision ()
|
|
returns
|
|
.B 0
|
|
on success if the specified time stamp precision is expected to be
|
|
supported by the capture device,
|
|
.B PCAP_ERROR_TSTAMP_PRECISION_NOTSUP
|
|
if the capture device does not support the requested time stamp
|
|
precision,
|
|
.B PCAP_ERROR_ACTIVATED
|
|
if called on a capture handle that has been activated.
|
|
.SH 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.
|
|
.SH SEE ALSO
|
|
.BR pcap (3PCAP),
|
|
.BR pcap_get_tstamp_precision (3PCAP),
|
|
.BR \%pcap-tstamp (@MAN_MISC_INFO@)
|