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the LIBpcap interface to various kernel packet capture mechanism now moved to

Fix valgrind warning (jump on unitialized value) due to missing ioctl…

… wrapper

Valgrind doesn't have a wrapper for the SIOCETHTOOL ioctl call yet. This
is causing every program that uses libpcap and valgrind to produce some
false warnings because it thinks eval.data was never initialized. A harmless
fix is to just set eval.data to 0 instead of leaving it unitialized before
the SIOCETHTOOL ioctl call sets it.
latest commit 76b1c8f6a8
David Clark PherricOxide authored March 19, 2013 mcr committed April 14, 2013
Octocat-spinner-32 ChmodBPF To quote September 09, 2009
Octocat-spinner-32 SUNOS4 Initial revision October 07, 1999
Octocat-spinner-32 Win32 Fixes to compile WinPcap under MINGW32 and MINGW64. October 15, 2010
Octocat-spinner-32 bpf In userland, sign extend the offset for JA instructions. May 04, 2011
Octocat-spinner-32 doc documentation for proposed pcap format April 05, 2004
Octocat-spinner-32 lbl Get rid of a bogus */ in the middle of a comment. August 02, 2002
Octocat-spinner-32 missing Move "snprintf.c" to the "missing" directory, as that's where April 05, 2004
Octocat-spinner-32 msdos From Gisle Vanem: April 22, 2008
Octocat-spinner-32 packaging Update to handle pcap.h being in /usr/include/pcap. June 08, 2012
Octocat-spinner-32 pcap Add USBPcap. March 27, 2013
Octocat-spinner-32 tests Oops, forgot to define USE_SOCKET_FILTERS on Linux. April 10, 2013
Octocat-spinner-32 .cvsignore More files to ignore. October 23, 2008
Octocat-spinner-32 .gitignore Ignore os-proto.h - it might be a symlink to os/os-XXX.h for some XXX. February 01, 2011
Octocat-spinner-32 .travis.yml Add .travis.yml for Travis CI November 28, 2012
Octocat-spinner-32 CHANGES Note that we fixed Solaris 11 build problems. April 06, 2013
Octocat-spinner-32 CREDITS Support filtering filtering E1 SS7 traffic on MTP2 layer Annex A. April 14, 2013
Octocat-spinner-32 INSTALL.txt Update the NeXTStEP, SCO UNIX/SCO OpenServer, and UnixWare information. June 12, 2008
Octocat-spinner-32 LICENSE added license file October 09, 2000
Octocat-spinner-32 Makefile.in Use "ln -s" to link man pages by default. April 14, 2013
Octocat-spinner-32 README Point people to GitHub rather than Sourceforge for bug reports/patche… March 15, 2013
Octocat-spinner-32 README.Win32 Again, we're using Git now. February 08, 2010
Octocat-spinner-32 README.aix Point people to GitHub rather than Sourceforge for bug reports/patche… March 15, 2013
Octocat-spinner-32 README.dag Update README.dag to cover the ERF_DONT_STRIP_FCS environment variable. June 08, 2012
Octocat-spinner-32 README.hpux Add to the beginning a note from Rick Jones that 11i (11.11) and later January 15, 2005
Octocat-spinner-32 README.linux Fix typoes, fix tabs (tabs are 8 spaces on UN*Xes - such as Linux). August 05, 2011
Octocat-spinner-32 README.macosx Put in a note about the Snow Leopard bug that requires that you have BPF September 09, 2009
Octocat-spinner-32 README.septel From Gilbert Hoyek <gil_hoyek@hotmail.com>: support for capturing SS7 June 20, 2005
Octocat-spinner-32 README.sita The SITA code in pcap-linux.c shares very little with the Linux code; January 06, 2008
Octocat-spinner-32 README.tru64 Pick up the "README.tru64" file from Ethereal, and change it to refer to January 24, 2001
Octocat-spinner-32 TODO Again, we're using Git now. February 08, 2010
Octocat-spinner-32 VERSION 1.4.x has its own branch; the trunk is for 1.5.x. March 26, 2013
Octocat-spinner-32 aclocal.m4 OpenBSD requires -fPIC on 64-bit SPARC as well. December 10, 2012
Octocat-spinner-32 arcnet.h Fix up the RCS ID, and put in a line indicating the NetBSD header file April 24, 2001
Octocat-spinner-32 atmuni31.h Use VCI_ as a prefix for all the VCI values, rather than just prefixing October 22, 2007
Octocat-spinner-32 bpf_dump.c Make some arguments const pointers if that makes sense. January 02, 2008
Octocat-spinner-32 bpf_image.c Squelch format vs. argument warnings from clang. November 30, 2012
Octocat-spinner-32 chmod_bpf Add a script to change the permissions of /dev/bpf*, and a launchd plist May 28, 2008
Octocat-spinner-32 config.guess Update config.guess and config.sub to the latest versions. January 08, 2010
Octocat-spinner-32 config.h.in Pick up some fixes from a comment for the SourceForge bug for D-Bus s… April 12, 2013
Octocat-spinner-32 config.sub Update config.guess and config.sub to the latest versions. January 08, 2010
Octocat-spinner-32 configure Use "ln -s" to link man pages by default. April 14, 2013
Octocat-spinner-32 configure.in Use "ln -s" to link man pages by default. April 14, 2013
Octocat-spinner-32 dlpisubs.c Don't define pcap_stream_err() if we're not going to use it. June 29, 2009
Octocat-spinner-32 dlpisubs.h From Paolo Abeni and me: split pcap_open_live() into a "get a pcap_t April 04, 2008
Octocat-spinner-32 etherent.c Include headers that should cause u_int64_t to be defined. January 26, 2010
Octocat-spinner-32 ethertype.h When checking for VLAN tags, check for QinQ tags as well. November 19, 2011
Octocat-spinner-32 fad-getad.c Don't try to handle AF_PACKET on Solaris. April 06, 2013
Octocat-spinner-32 fad-gifc.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 fad-glifc.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 fad-null.c Add _U_ to "rcsid[]" definitions, to eliminate "unused variable" November 15, 2003
Octocat-spinner-32 fad-sita.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 fad-win32.c Rename pcap_findalldevs() to pcap_findalldevs_interfaces(). April 04, 2013
Octocat-spinner-32 gencode.c Added basic support for BACnet MS/TP April 14, 2013
Octocat-spinner-32 gencode.h Support filtering filtering E1 SS7 traffic on MTP2 layer Annex A. April 14, 2013
Octocat-spinner-32 grammar.y Support filtering filtering E1 SS7 traffic on MTP2 layer Annex A. April 14, 2013
Octocat-spinner-32 ieee80211.h Support OpenBSD's "addr1", "addr2", "addr3", and "addr4" link-layer November 18, 2007
Octocat-spinner-32 inet.c Don't set errbuf to an error message if pcap_findalldevs() returns 0. March 24, 2011
Octocat-spinner-32 install-sh Initial revision October 07, 1999
Octocat-spinner-32 llc.h Add a "netbeui" keyword, which selects NetBEUI packets (LLC packets with January 28, 2001
Octocat-spinner-32 mkdep In some Solaris distributions, gcc is in /usr/sfw/bin. Look there for October 16, 2007
Octocat-spinner-32 nametoaddr.c Check for malloc failing in pcap_ether_aton(). April 14, 2013
Octocat-spinner-32 nlpid.h add BPF_ filters for misc. IS-IS PDU Types December 06, 2002
Octocat-spinner-32 optimize.c Use prototype syntax in function definitions. October 06, 2012
Octocat-spinner-32 org.tcpdump.chmod_bpf.plist This is probably the right way to run something once at startup time; it June 05, 2008
Octocat-spinner-32 pcap-bpf.c Correct comment on label representation. December 09, 2012
Octocat-spinner-32 pcap-bpf.h Add RCS IDs. April 01, 2007
Octocat-spinner-32 pcap-bt-linux.c Merge remote-tracking branch 'github/master' March 25, 2013
Octocat-spinner-32 pcap-bt-linux.h Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-can-linux.c And un-constify some others. June 11, 2012
Octocat-spinner-32 pcap-can-linux.h Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-canusb-linux.c Include pcap-canusb-linux.h to declare the exported functions. April 12, 2013
Octocat-spinner-32 pcap-canusb-linux.h added missing ( to pcap-canusb-linux.h September 03, 2012
Octocat-spinner-32 pcap-common.c Add USBPcap. March 27, 2013
Octocat-spinner-32 pcap-common.h Byte-swap the extra fields in the "version 1" USB monitor header. January 25, 2010
Octocat-spinner-32 pcap-config.1 Add a --additional-libs flag to pcap-config, to write out any additional May 22, 2009
Octocat-spinner-32 pcap-config.in Use config.status to generate pcap-config. November 30, 2010
Octocat-spinner-32 pcap-dag.c And un-constify some others. June 11, 2012
Octocat-spinner-32 pcap-dag.h Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-dbus.c pcap-int.h must be included before pcap-dbus.h, to get pcap_t etc. de… April 12, 2013
Octocat-spinner-32 pcap-dbus.h Add a pcap-dbus.h header and include it in pcap-dbus.c and pcap.c. April 12, 2013
Octocat-spinner-32 pcap-dlpi.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-dos.c Rename pcap_create() to pcap_create_interface(). March 28, 2013
Octocat-spinner-32 pcap-dos.h From Gisle Vanem: MS-DOS support. December 18, 2004
Octocat-spinner-32 pcap-enet.c Put the public libpcap headers into a pcap subdirectory in both the October 04, 2006
Octocat-spinner-32 pcap-filter.manmisc.in Remove AUTHORS section - it's in pcap(3PCAP). December 13, 2012
Octocat-spinner-32 pcap-int.h pcap-dbus code from Jakub Zawadzki April 12, 2013
Octocat-spinner-32 pcap-libdlpi.c Fix presumed typo. (This couldn't have compiled.) July 05, 2012
Octocat-spinner-32 pcap-linktype.manmisc.in Just point to the tcpdump.org Web page for descriptions of link-layer March 12, 2011
Octocat-spinner-32 pcap-linux.c Fix valgrind warning (jump on unitialized value) due to missing ioctl… April 14, 2013
Octocat-spinner-32 pcap-namedb.h Add a cautionary note to OS vendors here as well. October 04, 2006
Octocat-spinner-32 pcap-netfilter-linux.c Add netfilter/nfqueue interface. June 30, 2012
Octocat-spinner-32 pcap-netfilter-linux.h Add netfilter/nfqueue interface. June 30, 2012
Octocat-spinner-32 pcap-nit.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-null.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-pf.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-savefile.manfile.in Add LINKTYPE_ names to the pcap-linktype man page, and include the October 24, 2008
Octocat-spinner-32 pcap-septel.c Constify some variables. June 11, 2012
Octocat-spinner-32 pcap-septel.h Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-sita.c Add sanity checking for malloc, etc September 04, 2012
Octocat-spinner-32 pcap-sita.h The SITA code in pcap-linux.c shares very little with the Linux code; January 06, 2008
Octocat-spinner-32 pcap-sita.html Again, Git, not CVS. February 08, 2010
Octocat-spinner-32 pcap-snf.c It's pcap-snf.h, not snf.h, and must be included after pcap-int.h. April 12, 2013
Octocat-spinner-32 pcap-snf.h Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-snit.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-snoop.c Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-stdinc.h Don't define or use any of the SIZEOF_ values. April 04, 2010
Octocat-spinner-32 pcap-tstamp.manmisc.in Give the names, as well as the #defines, for time stamp types. August 23, 2010
Octocat-spinner-32 pcap-usb-linux.c And un-constify some others. June 11, 2012
Octocat-spinner-32 pcap-usb-linux.h Have non-interface modules take responsibility for identifying their … June 11, 2012
Octocat-spinner-32 pcap-win32.c Fix pcap_[gs]etnonblock() to fill in the supplied errbuf. July 04, 2012
Octocat-spinner-32 pcap.3pcap.in Remove the "last LBL release" stuff. December 11, 2012
Octocat-spinner-32 pcap.c Added basic support for BACnet MS/TP April 14, 2013
Octocat-spinner-32 pcap.h Put the public libpcap headers into a pcap subdirectory in both the October 04, 2006
Octocat-spinner-32 pcap1.h Point people to GitHub rather than Sourceforge for bug reports/patche… March 15, 2013
Octocat-spinner-32 pcap_activate.3pcap Return PCAP_ERROR_PROMISC_PERM_DENIED if you have permission to open the September 21, 2010
Octocat-spinner-32 pcap_breakloop.3pcap Fix up boldfacing. December 11, 2012
Octocat-spinner-32 pcap_can_set_rfmon.3pcap Add some additional SEE ALSO references. August 22, 2010
Octocat-spinner-32 pcap_close.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_compile.3pcap.in Fix man page typoes. March 08, 2011
Octocat-spinner-32 pcap_create.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_datalink.3pcap.in Consistently use "link-layer header type". August 22, 2010
Octocat-spinner-32 pcap_datalink_name_to_val.3pcap Consistently use "link-layer header type". August 22, 2010
Octocat-spinner-32 pcap_datalink_val_to_name.3pcap Consistently use "link-layer header type". August 22, 2010
Octocat-spinner-32 pcap_dump.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_dump_close.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_dump_file.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_dump_flush.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_dump_ftell.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_dump_open.3pcap.in Add a man page describing the pcap file format. October 23, 2008
Octocat-spinner-32 pcap_file.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_fileno.3pcap Fix typo. May 13, 2011
Octocat-spinner-32 pcap_findalldevs.3pcap Further emphasize that you *MUST* check sa_family. May 04, 2011
Octocat-spinner-32 pcap_freecode.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_get_selectable_fd.3pcap Improve the description of the BPF select() issue. July 22, 2011
Octocat-spinner-32 pcap_geterr.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_inject.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_is_swapped.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_lib_version.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_list_datalinks.3pcap.in Consistently use "link-layer header type". August 22, 2010
Octocat-spinner-32 pcap_list_tstamp_types.3pcap.in Add support for setting the time stamp type for a capture. August 22, 2010
Octocat-spinner-32 pcap_lookupdev.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_lookupnet.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_loop.3pcap Fix documentation of return values. July 03, 2012
Octocat-spinner-32 pcap_major_version.3pcap Note that file version numbers are file-type-dependent. December 21, 2011
Octocat-spinner-32 pcap_next_ex.3pcap Fix man page typoes. March 08, 2011
Octocat-spinner-32 pcap_offline_filter.3pcap Constify the filter argument to pcap_offline_filter(). November 25, 2012
Octocat-spinner-32 pcap_open_dead.3pcap.in Don't hard-wire section 4 as the section for the pcap-filter and October 21, 2008
Octocat-spinner-32 pcap_open_live.3pcap Fix man page typoes. March 08, 2011
Octocat-spinner-32 pcap_open_offline.3pcap.in Mention that we can read some pcap-ng files. January 09, 2010
Octocat-spinner-32 pcap_set_buffer_size.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_set_datalink.3pcap Consistently use "link-layer header type". August 22, 2010
Octocat-spinner-32 pcap_set_promisc.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_set_rfmon.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_set_snaplen.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_set_timeout.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_set_tstamp_type.3pcap.in If the specified time stamp type isn't supported, treat that as a war… August 22, 2010
Octocat-spinner-32 pcap_setdirection.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_setfilter.3pcap Pick up pcap_offline_filter() from WinPcap. May 13, 2008
Octocat-spinner-32 pcap_setnonblock.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_snapshot.3pcap Document the new API's, move a bunch of information about libpcap April 06, 2008
Octocat-spinner-32 pcap_stats.3pcap From Dustin Spicuzza: support ps_ifdrop on Linux, using /proc/net/dev. September 07, 2009
Octocat-spinner-32 pcap_statustostr.3pcap Rename pcap_errtostr() to pcap_statustostr(), and have it handle April 09, 2008
Octocat-spinner-32 pcap_strerror.3pcap Include <pcap/pcap.h> in the SUMMARY sections - as long as we're going April 05, 2008
Octocat-spinner-32 pcap_tstamp_type_name_to_val.3pcap Add support for setting the time stamp type for a capture. August 22, 2010
Octocat-spinner-32 pcap_tstamp_type_val_to_name.3pcap Add support for setting the time stamp type for a capture. August 22, 2010
Octocat-spinner-32 ppp.h The DLT_LINUX_PPP_WITHDIRECTION is also used for pppd on some BSDs, so February 08, 2005
Octocat-spinner-32 runlex.sh Add --nounput if Flex supports the --noFUNCTION options, as at least December 31, 2007
Octocat-spinner-32 savefile.c Pass the right packet data pointer to bpf_filter(). November 30, 2011
Octocat-spinner-32 scanner.l Support filtering filtering E1 SS7 traffic on MTP2 layer Annex A. April 14, 2013
Octocat-spinner-32 sf-pcap-ng.c Get rid of an unneeded variable. December 08, 2011
Octocat-spinner-32 sf-pcap-ng.h Add limited support for reading pcap-ng files. January 09, 2010
Octocat-spinner-32 sf-pcap.c Assorted header changes. January 12, 2011
Octocat-spinner-32 sf-pcap.h Add limited support for reading pcap-ng files. January 09, 2010
Octocat-spinner-32 sunatmpos.h Add SunATM support, based on code from Yen Yen Lim at North Dakota State July 11, 2002
README
@(#) $Header: /tcpdump/master/libpcap/README,v 1.34 2008-12-14 19:44:14 guy Exp $ (LBL)

LIBPCAP 1.x.y

www.tcpdump.org

Please send inquiries/comments/reports to:
	tcpdump-workers@lists.tcpdump.org

Anonymous Git is available via:
	git clone git://bpf.tcpdump.org/libpcap

Version 1.x.y of LIBPCAP can be retrieved with the CVS tag "libpcap_1_{x}rel{y}":
	cvs -d :pserver:tcpdump@cvs.tcpdump.org:/tcpdump/master checkout -r libpcap_1_{x}rel{y} libpcap

Please submit patches by forking the branch on GitHub at

	http://github.com/mcr/libpcap/tree/master

and issuing a pull request.

formerly from 	Lawrence Berkeley National Laboratory
		Network Research Group <libpcap@ee.lbl.gov>
		ftp://ftp.ee.lbl.gov/libpcap.tar.Z (0.4)

This directory contains source code for libpcap, a system-independent
interface for user-level packet capture.  libpcap provides a portable
framework for low-level network monitoring.  Applications include
network statistics collection, security monitoring, network debugging,
etc.  Since almost every system vendor provides a different interface
for packet capture, and since we've developed several tools that
require this functionality, we've created this system-independent API
to ease in porting and to alleviate the need for several
system-dependent packet capture modules in each application.

For some platforms there are README.{system} files that discuss issues
with the OS's interface for packet capture on those platforms, such as
how to enable support for that interface in the OS, if it's not built in
by default.

The libpcap interface supports a filtering mechanism based on the
architecture in the BSD packet filter.  BPF is described in the 1993
Winter Usenix paper ``The BSD Packet Filter: A New Architecture for
User-level Packet Capture''.  A compressed PostScript version can be
found at

	ftp://ftp.ee.lbl.gov/papers/bpf-usenix93.ps.Z

or

	http://www.tcpdump.org/papers/bpf-usenix93.ps.Z

and a gzipped version can be found at

	http://www.tcpdump.org/papers/bpf-usenix93.ps.gz

A PDF version can be found at

	http://www.tcpdump.org/papers/bpf-usenix93.pdf

Although most packet capture interfaces support in-kernel filtering,
libpcap utilizes in-kernel filtering only for the BPF interface.
On systems that don't have BPF, all packets are read into user-space
and the BPF filters are evaluated in the libpcap library, incurring
added overhead (especially, for selective filters).  Ideally, libpcap
would translate BPF filters into a filter program that is compatible
with the underlying kernel subsystem, but this is not yet implemented.

BPF is standard in 4.4BSD, BSD/OS, NetBSD, FreeBSD, OpenBSD, DragonFly
BSD, and Mac OS X; an older, modified and undocumented version is
standard in AIX.  {DEC OSF/1, Digital UNIX, Tru64 UNIX} uses the
packetfilter interface but has been extended to accept BPF filters
(which libpcap utilizes).  Also, you can add BPF filter support to
Ultrix using the kernel source and/or object patches available in:

	http://www.tcpdump.org/other/bpfext42.tar.Z

Linux, in the 2.2 kernel and later kernels, has a "Socket Filter"
mechanism that accepts BPF filters; see the README.linux file for
information on configuring that option.

Note to Linux distributions and *BSD systems that include libpcap:

There's now a rule to make a shared library, which should work on Linux 
and *BSD, among other platforms.

It sets the soname of the library to "libpcap.so.1"; this is what it 
should be, *NOT* libpcap.so.1.x or libpcap.so.1.x.y or something such as 
that.

We've been maintaining binary compatibility between libpcap releases for 
quite a while; there's no reason to tie a binary linked with libpcap to 
a particular release of libpcap.

Problems, bugs, questions, desirable enhancements, etc. should be sent
to the address "tcpdump-workers@lists.tcpdump.org".  Bugs, support
requests, and feature requests may also be submitted on the GitHub issue
tracker for libpcap at

	https://github.com/mcr/libpcap/issues

Source code contributions, etc. should be sent to the email address
above or submitted by forking the branch on GitHub at

	http://github.com/mcr/libpcap/tree/master

and issuing a pull request.

Current versions can be found at www.tcpdump.org.

 - The TCPdump team
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