6f9cba8f8b
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
73 lines
2.8 KiB
Plaintext
73 lines
2.8 KiB
Plaintext
.\"
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.\" Copyright (c) 1994, 1996, 1997
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that: (1) source code distributions
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.\" retain the above copyright notice and this paragraph in its entirety, (2)
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.\" distributions including binary code include the above copyright notice and
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.\" this paragraph in its entirety in the documentation or other materials
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.\" provided with the distribution, and (3) all advertising materials mentioning
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.\" features or use of this software display the following acknowledgement:
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.\" ``This product includes software developed by the University of California,
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.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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.\" the University nor the names of its contributors may be used to endorse
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.\" or promote products derived from this software without specific prior
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.\" written permission.
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.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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.TH PCAP_SET_TSTAMP_TYPE 3PCAP "8 September 2019"
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.SH NAME
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pcap_set_tstamp_type \- set the time stamp type to be used by a
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capture device
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.SH SYNOPSIS
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.nf
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.ft B
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#include <pcap/pcap.h>
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.ft
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.LP
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.ft B
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int pcap_set_tstamp_type(pcap_t *p, int tstamp_type);
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.ft
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.fi
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.SH DESCRIPTION
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.BR pcap_set_tstamp_type ()
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sets the type of time stamp desired for packets captured on the pcap
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descriptor to the type specified by
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.IR tstamp_type .
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It must be called on a pcap descriptor created by
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.BR pcap_create (3PCAP)
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that has not yet been activated by
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.BR pcap_activate (3PCAP).
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.BR pcap_list_tstamp_types (3PCAP)
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will give a list of the time stamp types supported by a given capture
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device.
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See
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.BR \%pcap-tstamp (@MAN_MISC_INFO@)
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for a list of all the time stamp types.
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.SH RETURN VALUE
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.BR pcap_set_tstamp_type ()
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returns
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.B 0
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on success if the specified time stamp type is expected to be
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supported by the capture device,
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.B PCAP_WARNING_TSTAMP_TYPE_NOTSUP
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if the specified time stamp type is not supported by the
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capture device,
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.B PCAP_ERROR_ACTIVATED
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if called on a capture handle that has been activated, and
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.B PCAP_ERROR_CANTSET_TSTAMP_TYPE
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if the capture device doesn't support setting the time stamp type (only
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older versions of libpcap will return that; newer versions will always
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allow the time stamp type to be set to the default type).
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.SH BACKWARD COMPATIBILITY
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.PP
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This function became available in libpcap release 1.2.1. In previous
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releases, the time stamp type cannot be set; only the default time stamp
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type offered by a capture source is available.
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.SH SEE ALSO
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.BR pcap (3PCAP),
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.BR pcap_tstamp_type_name_to_val (3PCAP)
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