Home | History | Annotate | Line # | Download | only in dist
      1 Tuesday, December 30, 2025 / The Tcpdump Group
      2   Summary for 4.99.6 tcpdump release
      3     Remove protocol decoding for:
      4       OTV (draft-hasmit-otv-04, this Internet-Draft is no longer active).
      5     Refine protocol decoding for:
      6       DNS: Use ND_TCHECK_LEN() instead of a custom bounds check.
      7       IPv6: Add a missing comma and remove a colon in the output.
      8       TCP: Note if the Urgent Pointer is non-zero while URG flag not set,
      9            if the verbose level is > 1 (option -vv and more).
     10       TCP: Note if the Acknowledgment Number is non-zero while ACK flag not set,
     11            if the verbose level is > 1 (option -vv and more).
     12       TCP: Fix Reset segment processing.
     13       IP, IPv6: Fix setting the snapshot length for the payload.
     14       IP: Use ND_TTEST_LEN() instead of a custom bounds check.
     15       frag6: Add a bounds check in non-verbose mode.
     16       PTP: Remove spaces before colons in output.
     17       PTP: Fix management packet fields.
     18       ISO: Avoid undefined behavior and integer overflow in the Fletcher
     19            checksum calculation.
     20       NFS: Delete dead code.
     21       BOOTP: Use an uint16_t variable to get the result of a GET_BE_U_2().
     22       ZEP: use the existing NTP time formatting code.
     23       NTP: Fix p_ntp_time_fmt() using epoch 1/epoch 2 convention (RFC 4330).
     24       NTP: Update a field name with the RFC 5905 name (Origin Timestamp).
     25       IPv6 mobility: Modernize packet parsing and make fixes.
     26       IP6OPTS: Modernize packet parsing and make fixes.
     27       VXLAN: Add UDP port 8472 used by Linux as the default port.
     28       EGP: Replace custom code with tok2str(); Modernize packet parsing and
     29         fix printing with -v option.
     30     User interface:
     31       Add optional unit suffix on -C file size.
     32       Improve the handling of size suffixes for -C.
     33       Print errors for options -A, -x[x] and -X[X] (mutually exclusive).
     34       Print errors about -C, -G and -z options usage.
     35       For PCAP_ERROR_CAPTURE_NOTSUP, show the error message provided
     36         by libpcap for that error if it's non-empty.
     37       Update the -z option processing. Print "invalid option -- z" when it is.
     38       Add the -g option, causing IPv4 output in verbose mode to be on one line.
     39     Other:
     40       Avoid race condition when receiving signal during shutdown.
     41       Always show the interface name in error messages when the
     42         interface can't be opened.
     43       Clean up the message shown if a -i flag is specified with an
     44         interface index that's too large.
     45     Source code:
     46       Fix '-tt' option printing when time > 2106-02-07T06:28:15Z.
     47       Add sub-second packet timestamp checks for invalid micro/nano.
     48       Remove unused missing/snprintf.c.
     49       Fix incompatible pointer types with time functions calls on Windows.
     50       Use C99 macros to define 64-bit constants and maximum 64-bit values.
     51     Windows:
     52       Fixed to find wpcap.dll if WinPcap isn't installed and Npcap was
     53         installed without the WinPcap API compatibility option. (GitHub
     54         issue #1226).
     55     Building and testing:
     56       Makefile.in: Use a local libpcap in the releasecheck target.
     57       CMake: Fix build with CMake 3.31.
     58       autotools, CMake: don't separately test whether snprintf(3) is
     59         available and whether it's suitable - the test for whether it's
     60         suitable also fails if it's unavailable.
     61       CMake: Skip snprintf(3) tests when cross-compiling.
     62       autotools, CMake: fix issues with snprintf test and sanitizers.
     63       CMake: check whether check_c_source_runs() works, treat the build
     64         as a cross-compile if it doesn't work.
     65       Autoconf: Use AC_SYS_YEAR2038_RECOMMENDED when possible if the
     66         environment variable BUILD_YEAR2038 = yes (via autogen.sh).
     67       Autoconf: Avoid incorrectly include the libpcap's config.h.
     68       Autoconf: Refine reporting of os-proto.h.
     69       Require config.h to be from the tcpdump build.
     70       AppVeyor: Update Npcap SDK to 1.15.
     71       autogen.sh: Allow to configure Autoconf warnings.
     72       autogen.sh: Delete all trailing blank lines at end of configure.
     73 
     74 Friday, August 30, 2024 / The Tcpdump Group
     75   Summary for 4.99.5 tcpdump release
     76     Refine protocol decoding for:
     77       Arista: Use the test .pcap file from pull request #955 (HwInfo).
     78       BGP: Fix an undefined behavior when it tries to parse a too-short packet.
     79       CARP: Print the protocol name before any GET_().
     80       CDP: only hex-dump unknown TLVs in verbose mode.
     81       DHCP: parse the SZTP redirect tag.
     82       DHCPv6: client-id/server-id DUID type 2 correction; parse the user class,
     83         boot file URL, and SZTP redirect options; add DUID-UUID printing
     84         (RFC6355).
     85       DNS: Detect and correctly handle too-short URI RRs.
     86       EAP: Assign ndo_protocol in the eap_print() function.
     87       ESP: Don't use EVP_add_cipher_alias() (fixes building on OpenBSD 7.5).
     88       Frame Relay (Multilink): Fix the Timestamp Information Element printing.
     89       ICMPv6: Fix printing the Home Agent Address Discovery Reply Message.
     90       IEEE 802.11: no need for an element ID in the structures for IEs, make
     91         the length in the IE structures a u_int, include the "TA" field while
     92         printing Block Ack Control frame.
     93       IP: Enable TSO (TCP Segmentation Offload) support; fix printing invalid
     94         cases as invalid, not truncated; use ND_ICHECKMSG_ZU() to test the
     95         header length.
     96       IPv6: Fix printing invalid cases as invalid, not truncated; use
     97         ND_ICHECKMSG_U() to print an invalid version.
     98       IPv6: Fix invalid 32-bit versus 64-bit printouts of fragment headers.
     99       ISAKMP: Fix printing Delete payload SPI when size is zero.
    100       Kerberos: Print the protocol name, remove a redundant bounds check.
    101       lwres: Fix an undefined behavior in pointer arithmetic.
    102       OpenFlow 1.0: Fix indentation of PORT_MOD, improve handling of
    103           some lengths, and fix handling of snapend.
    104       TCP: Test ports < 1024 in port order to select the printer.
    105       UDP: Move source port equal BCM_LI_PORT to bottom of long if else chain.
    106       UDP: Test ports < 1024 in port order to select the printer.
    107       LDP: Add missing fields of the Common Session Parameters TLV and fix the
    108         offset for the A&D bits.
    109       NFLOG: Use correct AF code points on all OSes.
    110       NFS: Avoid printing non-ASCII characters.
    111       OSPF: Pad TLVs in LS_OPAQUE_TYPE_RI to multiples of 4 bytes.
    112       OSPF: Update LS-Ack printing not to run off the end of the packet.
    113       OSPF6: Fix an undefined behavior.
    114       pflog: Use nd_ types in struct pfloghdr.
    115       PPP: Check if there is some data to hexdump.
    116       PPP: Remove an extra colon before LCP Callback Operation.
    117       Use the buffer stack for de-escaping PPP; fixes CVE-2024-2397;
    118         Note: This problem does not affect any tcpdump release.
    119       PTP: Fix spelling of type SIGNALING, Parse major and minor version
    120         correctly, Print majorSdoId field instead of just the first bit.
    121       RIP: Make a couple trivial protocol updates.
    122       RPKI-Router: Refine length and bounds checks.
    123       RX: Use the "%Y-%m-%d" date format.
    124       smbutil.c: Use the "%Y-%m-%d" date format.
    125       SNMP: Fix two undefined behaviors.
    126       Text protocols: Fix printing truncation if it is not the case.
    127       ZEP: Use the "%Y-%m-%d" date format.
    128       ZMTP: Replace custom code with bittok2str().
    129     User interface:
    130       Print the supported time stamp types (-J) to stdout instead of stderr.
    131       Print the list of data link types (-L) to stdout instead of stderr.
    132       Use symmetrical quotation characters in error messages.
    133       Update --version option to print 32/64-bit build and time_t size.
    134       Improve error messages for invalid interface indexes specified
    135         with -i.
    136       Support "3des" as an alias for "des_ede3_cbc" even if the crypto
    137         library doesn't support adding aliases.
    138     Source code:
    139       tcpdump: Fix a memory leak.
    140       child_cleanup: reap as many child processes as possible.
    141       Ignore failures when setting the default "any" device DLL to LINUX_SLL2.
    142       Fix for backends which doesn't support capsicum.
    143       Update ND_BYTES_BETWEEN() macro for better accuracy.
    144       Update ND_BYTES_AVAILABLE_AFTER() macro for better accuracy.
    145       Introduce new ND_ICHECK*() macros to deduplicate more code.
    146       Skip privilege dropping when using -Z root on --with-user builds.
    147       Add a nd_printjn() function.
    148       Make nd_trunc_longjmp() not static inline.
    149       Include <time.h> from netdissect.h.
    150       Remove init_crc10_table() and the entourage.
    151       Initialize tzcode early.
    152       Capsicum support: Fix a 'not defined' macro error.
    153       Update the "Error converting time" tests for packet times.
    154       Fix warnings when building for 32-bit and defining _TIME_BITS=64.
    155       Free interface list just before exiting where it wasn't being
    156         freed.
    157     Building and testing:
    158       Add a configure option to help debugging (--enable-instrument-functions).
    159       At build time require a proof of suitable snprintf(3) implementation in
    160         libc (and document Solaris 9 as unsupported because of that).
    161       Makefile.in: Add two "touch .devel" commands in the releasecheck target.
    162       Autoconf: Get --with-user and --with-chroot right.
    163       Autoconf: Fix --static-pcap-only test on Solaris 10.
    164       Autoconf: Add some warning flags for clang 13 or newer.
    165       Autoconf: Update config.{guess,sub}, timestamps 2024-01-01.
    166       Autoconf: Add autogen.sh, remove configure and config.h.in and put
    167         these generated files in the release tarball.
    168       Autoconf: Update the install-sh script to the 2020-11-14.01 version.
    169       configure: Apply autoupdate 2.69.
    170       CMake: improve the comment before project(tcpdump C).
    171       Do not require vsnprintf().
    172       tests: Use the -tttt option, by default, for the tests.
    173       Autoconf, CMake: Get the size of a void * and a time_t.
    174       Fix propagation of cc_werr_cflags() output.
    175       Makefile.in: Fix the depend target.
    176       mkdep: Exit with a non-zero status if a command fails.
    177       Autoconf: use V_INCLS to update the list of include search paths.
    178       Autoconf: don't put anything before -I and -L flags for local libpcap.
    179       Autoconf, CMake: work around an Xcode 15+ issue.
    180       Autoconf, CMake: use pkg-config and Homebrew when looking for
    181         libcrypto.
    182       Fix Sun C invocation from CMake.
    183       mkdep: Use TMPDIR if it is set and not null.
    184       Add initial support for building with TinyCC.
    185       Makefile.in: Use the variable MAKE instead of the make command.
    186       Makefile.in: Add instrumentation configuration in releasecheck target.
    187       Make various improvements to the TESTrun script.
    188       Untangle detection of pcap_findalldevs().
    189       Autoconf: don't use egrep, use $EGREP.
    190       Autoconf: check for gethostbyaddr(), not gethostbyname().
    191       Autoconf, CMake: search for gethostbyaddr() in libnetwork.
    192       Make illumos build warning-free.
    193     Documentation:
    194       Fixed errors in doc/README.Win32.md and renamed it to README.windows.md.
    195       Make various improvements to the man page.
    196       Add initial README file for Haiku.
    197       Make various improvements to CONTRIBUTING.md.
    198       man: Clarify the "any" pseudo-interface further.
    199 
    200 Friday, April 7, 2023 / The Tcpdump Group
    201   Summary for 4.99.4 tcpdump release
    202     Source code:
    203       Fix spaces before tabs in indentation.
    204     Updated printers:
    205       LSP ping: Fix "Unused value" warnings from Coverity.
    206       CVE-2023-1801: Fix an out-of-bounds write in the SMB printer.
    207       DNS: sync resource types with IANA.
    208       ICMPv6: Update the output to show a RPL DAO field name.
    209       Geneve: Fix the Geneve UDP port test.
    210     Building and testing:
    211       Require at least autoconf 2.69.
    212       Don't check for strftime(), as it's in C90 and beyond.
    213       Update config.{guess,sub}, timestamps 2023-01-01,2023-01-21.
    214     Documentation:
    215       man: Document TCP flag names better.
    216 
    217 Thursday, January 12, 2023 / The Tcpdump Group
    218   Summary for 4.99.3 tcpdump release
    219     Updated printers:
    220       PTP: Use the proper values for the control field and print un-allocated
    221         values for the message field as "Reserved" instead of "none".
    222     Source code:
    223       smbutil.c: Replace obsolete function call (asctime)
    224     Building and testing:
    225       cmake: Update the minimum required version to 2.8.12 (except Windows).
    226       CI: Introduce and use TCPDUMP_CMAKE_TAINTED.
    227       Makefile.in: Add the releasecheck target.
    228       Makefile.in: Add "make -s install" in the releasecheck target.
    229       Cirrus CI: Run the "make releasecheck" command in the Linux task.
    230       Makefile.in: Add the whitespacecheck target.
    231       Cirrus CI: Run the "make whitespacecheck" command in the Linux task.
    232       Address all shellcheck warnings in update-test.sh.
    233       Makefile.in: Get rid of a remain of gnuc.h.
    234     Documentation:
    235       Reformat the installation notes (INSTALL.txt) in Markdown.
    236       Convert CONTRIBUTING to Markdown.
    237       CONTRIBUTING.md: Document the use of "protocol: " in a commit summary.
    238       Add a README file for NetBSD.
    239       Fix CMake build to set man page section numbers in tcpdump.1
    240 
    241 Saturday, December 31, 2022 / The Tcpdump Group
    242   Summary for 4.99.2 tcpdump release
    243     Updated printers:
    244       BGP: Update cease notification decoding to RFC 9003.
    245       BGP: decode BGP link-bandwidth extended community properly.
    246       BGP: Fix parsing the AIGP attribute
    247       BGP: make sure the path attributes don't go past the end of the packet.
    248       BGP: Shutdown message can be up to 255 bytes length according to rfc9003
    249       DSA: correctly determine VID.
    250       EAP: fix some length checks and output issues.
    251       802.11: Fix the misleading comment regarding "From DS", "To DS" Frame
    252         Control Flags.
    253       802.11: Fetch the CF and TIM IEs a field at a time.
    254       802.15.4, BGP, LISP: fix some length checks, compiler warnings,
    255         and undefined behavior warnings.
    256       PFLOG: Handle LINKTYPE_PFLOG/DLT_PFLOG files from all OSes on all
    257         OSes.
    258       RRCP: support more Realtek protocols than just RRCP.
    259       MPLS: show the EXP field as TC, as per RFC 5462.
    260       ICMP: redo MPLS Extension code as general ICMP Extension code.
    261       VQP: Do not print unknown error codes twice.
    262       Juniper: Add some bounds checks.
    263       Juniper: Don't treat known DLT_ types as "Unknown".
    264       lwres: Fix a length check, update a variable type.
    265       EAP: Fix some undefined behaviors at runtime.
    266       Ethernet: Rework the length checks, add a length check.
    267       IPX: Add two length checks.
    268       Zephyr: Avoid printing non-ASCII characters.
    269       VRRP: Print the protocol name before any GET_().
    270       DCCP: Get rid of trailing commas in lists.
    271       Juniper: Report invalid packets as invalid, not truncated.
    272       IPv6: Remove an obsolete code in an always-false #if wrapper.
    273       ISAKMP: Use GET_U_1() to replace a direct dereference.
    274       RADIUS: Use GET_U_1() to replace a direct dereference.
    275       TCP: Fix an invalid check.
    276       RESP: Fix an invalid check.
    277       RESP: Remove an unnecessary test.
    278       Arista: Refine the output format and print HwInfo.
    279       sFlow: add support for IPv6 agent, add a length check.
    280       VRRP: add support for IPv6.
    281       OSPF: Update to match the Router Properties registry.
    282       OSPF: Remove two unnecessary dereferences.
    283       OSPF: Add support bit Nt RFC3101.
    284       OSPFv3: Remove two unnecessary dereferences.
    285       ICMPv6: Fix output for Router Renumbering messages.
    286       ICMPv6: Fix the Node Information flags.
    287       ICMPv6: Remove an unused macro and extra blank lines.
    288       ICMPv6: Add a length check in the rpl_dio_print() function.
    289       ICMPv6: Use GET_IP6ADDR_STRING() in the rpl_dio_print() function.
    290       IPv6: Add some checks for the Hop-by-Hop Options header
    291       IPv6: Add a check for the Jumbo Payload Hop-by-Hop option.
    292       NFS: Fix the format for printing an unsigned int
    293       PTP: fix printing of the correction fields
    294       PTP: Use ND_LCHECK_U for checking invalid length.
    295       WHOIS: Add its own printer source file and printer function
    296       MPTCP: print length before subtype inside MPTCP options
    297       ESP: Add a workaround to a "use-of-uninitialized-value".
    298       PPP: Add tests to avoid incorrectly re-entering ppp_hdlc().
    299       PPP: Don't process further if protocol is unknown (-e option).
    300       PPP: Change the pointer to packet data.
    301       ZEP: Add three length checks.
    302       Add some const qualifiers.
    303     Building and testing:
    304       Update config.guess and config.sub.
    305       Use AS_HELP_STRING macro instead of AC_HELP_STRING.
    306       Handle some Autoconf/make errors better.
    307       Fix an error when cross-compiling.
    308       Use "git archive" for the "make releasetar" process.
    309       Remove the release candidate rcX targets.
    310       Mend "make check" on Solaris 9 with Autoconf.
    311       Address assorted compiler warnings.
    312       Fix auto-enabling of Capsicum on FreeBSD with Autoconf.
    313       Treat "msys" as Windows for test exit statuses.
    314       Clean up some help messages in configure.
    315       Use unified diff by default.
    316       Remove awk code from mkdep.
    317       Fix configure test errors with Clang 15
    318       CMake: Prevent stripping of the RPATH on installation.
    319       AppVeyor CI: update Npcap site, update to 1.12 SDK.
    320       Cirrus CI: Use the same configuration as for the main branch.
    321       CI: Add back running tcpdump -J/-L and capture, now with Cirrus VMs.
    322       Remove four test files (They are now in the libpcap tests directory).
    323       On Solaris, for 64-bit builds, use the 64-bit pcap-config.
    324       Tell CMake not to check for a C++ compiler.
    325       CMake: Add a way to request -Werror and equivalents.
    326       configure: Special-case macOS /usr/bin/pcap-config as we do in CMake.
    327       configure: Use pcap-config --static-pcap-only if available.
    328       configure: Use ac_c_werror_flag to force unknown compiler flags to fail.
    329       configure: Use AC_COMPILE_IFELSE() and AC_LANG_SOURCE() for testing
    330         flags.
    331       Run the test that fails on OpenBSD only if we're not on OpenBSD.
    332     Source code:
    333       Fix some snapend-changing routines to protect against pointer
    334         underflow.
    335       Use __func__ from C99 in some function calls.
    336       Memory allocator: Update nd_add_alloc_list() to a static function.
    337       addrtoname.c: Fix two invalid tests.
    338       Use more S_SUCCESS and S_ERR_HOST_PROGRAM in main().
    339       Add some comments about "don't use GET_IP6ADDR_STRING()".
    340       Assign ndo->ndo_packetp in pretty_print_packet().
    341       Add ND_LCHECKMSG_U, ND_LCHECK_U, ND_LCHECKMSG_ZU and ND_LCHECK_ZU macros.
    342       Update tok2strbuf() to a static function.
    343       netdissect.h: Keep the link-layer dissectors names sorted.
    344       setsignal(): Set SA_RESTART on non-lethal signals (REQ_INFO, FLUSH_PCAP)
    345         to avoid corrupting binary pcap output.
    346       Use __builtin_unreachable().
    347       Fail if nd_push_buffer() or nd_push_snaplen() fails.
    348       Improve code style and fix many typos.
    349     Documentation:
    350       Some man page cleanups.
    351       Update the print interface for the packet count to stdout.
    352       Note that we require compilers to support at least some of C99.
    353       Update AIX and Solaris-related specifics.
    354       INSTALL.txt: Add doc/README.*, delete the deleted win32 directory.
    355       Update README.md and README.Win32.md.
    356       Update some comments with new RFC numbers.
    357 
    358 Wednesday, June 9, 2021 by gharris
    359   Summary for 4.99.1 tcpdump release
    360     Source code:
    361       Squelch some compiler warnings
    362       ICMP: Update the snapend for some nested IP packets.
    363       MACsec: Update the snapend thus the ICV field is not payload
    364         for the caller.
    365       EIGRP: Fix packet header fields
    366       SMB: Disable printer by default in CMake builds
    367       OLSR: Print the protocol name even if the packet is invalid
    368       MSDP: Print ": " before the protocol name
    369       ESP: Remove padding, padding length and next header from the buffer
    370       DHCPv6: Update the snapend for nested DHCPv6 packets
    371       OpenFlow 1.0: Get snapend right for nested frames.
    372       TCP: Update the snapend before decoding a MPTCP option
    373       Ethernet, IEEE 802.15.4, IP, L2TP, TCP, ZEP: Add bounds checks
    374       ForCES: Refine SPARSEDATA-TLV length check.
    375       ASCII/hex: Use nd_trunc_longjmp() in truncation cases
    376       GeoNet: Add a ND_TCHECK_LEN() call
    377       Replace ND_TCHECK_/memcpy() pairs with GET_CPY_BYTES().
    378       BGP: Fix overwrites of global 'astostr' temporary buffer
    379       ARP: fix overwrites of static buffer in q922_string().
    380       Frame Relay: have q922_string() handle errors better.
    381     Building and testing:
    382       Rebuild configure script when building release
    383       Fix "make clean" for out-of-tree autotools builds
    384       CMake: add stuff from CMAKE_PREFIX_PATH to PKG_CONFIG_PATH.
    385     Documentation:
    386       man: Update a reference as www.cifs.org is gone.
    387       man: Update DNS sections
    388     Solaris:
    389       Fix a compile error with Sun C
    390 
    391 Wednesday, December 30, 2020, by mcr (a] sandelman.ca, denis and fxl.
    392   Summary for 4.99.0 tcpdump release
    393     CVE-2018-16301: For the -F option handle large input files safely.
    394     Improve the contents, wording and formatting of the man page.
    395     Print unsupported link-layer protocol packets in hex.
    396     Add support for new network protocols and DLTs: Arista, Autosar SOME/IP,
    397       Broadcom LI and Ethernet switches tag, IEEE 802.15.9, IP-over-InfiniBand
    398       (IPoIB), Linux SLL2, Linux vsockmon, MACsec, Marvell Distributed Switch
    399       Architecture, OpenFlow 1.3, Precision Time Protocol (PTP), SSH, WHOIS,
    400       ZigBee Encapsulation Protocol (ZEP).
    401     Make protocol-specific updates for: AH, DHCP, DNS, ESP, FRF.16, HNCP,
    402       ICMP6, IEEE 802.15.4, IPv6, IS-IS, Linux SLL, LLDP, LSP ping, MPTCP, NFS,
    403       NSH, NTP, OSPF, OSPF6, PGM, PIM, PPTP, RADIUS, RSVP, Rx, SMB, UDLD,
    404       VXLAN-GPE.
    405     User interface:
    406       Make SLL2 the default for Linux "any" pseudo-device.
    407       Add --micro and --nano shorthands.
    408       Add --count to print a counter only instead of decoding.
    409       Add --print, to cause packet printing even with -w.
    410       Add support for remote capture if libpcap supports it.
    411       Display the "wireless" flag and connection status.
    412       Flush the output packet buffer on a SIGUSR2.
    413       Add the snapshot length to the "reading from file ..." message.
    414       Fix local time printing (DST offset in timestamps).
    415       Allow -C arguments > 2^31-1 GB if they can fit into a long.
    416       Handle very large -f files by rejecting them.
    417       Report periodic stats only when safe to do so.
    418       Print the number of packets captured only as often as necessary.
    419       With no -s, or with -s 0, don't specify the snapshot length with newer
    420         versions of libpcap.
    421       Improve version and usage message printing.
    422     Building and testing:
    423       Install into bindir, not sbindir.
    424       autoconf: replace --with-system-libpcap with --disable-local-libpcap.
    425       Require the compiler to support C99.
    426       Better detect and use various C compilers and their features.
    427       Add CMake as the second build system.
    428       Make out-of-tree builds more reliable.
    429       Use pkg-config to detect libpcap if available.
    430       Improve Windows support.
    431       Add more tests and improve the scripts that run them.
    432       Test both with "normal" and "x87" floating-point.
    433       Eliminate dependency on libdnet.
    434     FreeBSD:
    435       Print a proper error message about monitor mode VAP.
    436       Use libcasper if available.
    437       Fix failure to capture on RDMA device.
    438       Include the correct capsicum header.
    439     Source code:
    440       Start the transition to longjmp() for packet truncation handling.
    441       Introduce new helper functions, including GET_*(), nd_print_protocol(),
    442         nd_print_invalid(), nd_print_trunc(), nd_trunc_longjmp() and others.
    443       Put integer signedness right in many cases.
    444       Introduce nd_uint*, nd_mac_addr, nd_ipv4 and nd_ipv6 types to fix
    445         alignment issues, especially on SPARC.
    446       Fix many C compiler, Coverity, UBSan and cppcheck warnings.
    447       Fix issues detected with AddressSanitizer.
    448       Remove many workarounds for older compilers and OSes.
    449       Add a sanity check on packet header length.
    450       Add and remove plenty of bounds checks.
    451       Clean up pcap_findalldevs() call to find the first interface.
    452       Use a short timeout, rather than immediate mode, for text output.
    453       Handle DLT_ENC files *not* written on the same OS and byte-order host.
    454       Add, and use, macros to do locale-independent case mapping.
    455       Use a table instead of getprotobynumber().
    456       Get rid of ND_UNALIGNED and ND_TCHECK().
    457       Make roundup2() generally available.
    458       Resync SMI list against Wireshark.
    459       Fix many typos.
    460 
    461 Friday, September 20, 2019, by mcr (a] sandelman.ca
    462   A huge thank you to Denis, Francois-Xavier and Guy who did much of the heavy lifting.
    463   Summary for 4.9.3 tcpdump release
    464     Fix buffer overflow/overread vulnerabilities:
    465       CVE-2017-16808 (AoE)
    466       CVE-2018-14468 (FrameRelay)
    467       CVE-2018-14469 (IKEv1)
    468       CVE-2018-14470 (BABEL)
    469       CVE-2018-14466 (AFS/RX)
    470       CVE-2018-14461 (LDP)
    471       CVE-2018-14462 (ICMP)
    472       CVE-2018-14465 (RSVP)
    473       CVE-2018-14881 (BGP)
    474       CVE-2018-14464 (LMP)
    475       CVE-2018-14463 (VRRP)
    476       CVE-2018-14467 (BGP)
    477       CVE-2018-10103 (SMB - partially fixed, but SMB printing disabled)
    478       CVE-2018-10105 (SMB - too unreliably reproduced, SMB printing disabled)
    479       CVE-2018-14880 (OSPF6)
    480       CVE-2018-16451 (SMB)
    481       CVE-2018-14882 (RPL)
    482       CVE-2018-16227 (802.11)
    483       CVE-2018-16229 (DCCP)
    484       CVE-2018-16230 (BGP)
    485       CVE-2018-16452 (SMB)
    486       CVE-2018-16300 (BGP)
    487       CVE-2018-16228 (HNCP)
    488       CVE-2019-15166 (LMP)
    489       CVE-2019-15167 (VRRP)
    490     Fix for cmdline argument/local issues:
    491       CVE-2018-14879 (tcpdump -V)
    492 
    493 Sunday September 3, 2017 denis (a] ovsienko.info
    494   Summary for 4.9.2 tcpdump release
    495     Do not use getprotobynumber() for protocol name resolution.  Do not do
    496       any protocol name resolution if -n is specified.
    497     Improve errors detection in the test scripts.
    498     Fix a segfault with OpenSSL 1.1 and improve OpenSSL usage.
    499     Clean up IS-IS printing.
    500     Fix buffer overflow vulnerabilities:
    501       CVE-2017-11543 (SLIP)
    502       CVE-2017-13011 (bittok2str_internal)
    503     Fix infinite loop vulnerabilities:
    504       CVE-2017-12989 (RESP)
    505       CVE-2017-12990 (ISAKMP)
    506       CVE-2017-12995 (DNS)
    507       CVE-2017-12997 (LLDP)
    508     Fix buffer over-read vulnerabilities:
    509       CVE-2017-11541 (safeputs)
    510       CVE-2017-11542 (PIMv1)
    511       CVE-2017-12893 (SMB/CIFS)
    512       CVE-2017-12894 (lookup_bytestring)
    513       CVE-2017-12895 (ICMP)
    514       CVE-2017-12896 (ISAKMP)
    515       CVE-2017-12897 (ISO CLNS)
    516       CVE-2017-12898 (NFS)
    517       CVE-2017-12899 (DECnet)
    518       CVE-2017-12900 (tok2strbuf)
    519       CVE-2017-12901 (EIGRP)
    520       CVE-2017-12902 (Zephyr)
    521       CVE-2017-12985 (IPv6)
    522       CVE-2017-12986 (IPv6 routing headers)
    523       CVE-2017-12987 (IEEE 802.11)
    524       CVE-2017-12988 (telnet)
    525       CVE-2017-12991 (BGP)
    526       CVE-2017-12992 (RIPng)
    527       CVE-2017-12993 (Juniper)
    528       CVE-2017-12994 (BGP)
    529       CVE-2017-12996 (PIMv2)
    530       CVE-2017-12998 (ISO IS-IS)
    531       CVE-2017-12999 (ISO IS-IS)
    532       CVE-2017-13000 (IEEE 802.15.4)
    533       CVE-2017-13001 (NFS)
    534       CVE-2017-13002 (AODV)
    535       CVE-2017-13003 (LMP)
    536       CVE-2017-13004 (Juniper)
    537       CVE-2017-13005 (NFS)
    538       CVE-2017-13006 (L2TP)
    539       CVE-2017-13007 (Apple PKTAP)
    540       CVE-2017-13008 (IEEE 802.11)
    541       CVE-2017-13009 (IPv6 mobility)
    542       CVE-2017-13010 (BEEP)
    543       CVE-2017-13012 (ICMP)
    544       CVE-2017-13013 (ARP)
    545       CVE-2017-13014 (White Board)
    546       CVE-2017-13015 (EAP)
    547       CVE-2017-11543 (SLIP)
    548       CVE-2017-13016 (ISO ES-IS)
    549       CVE-2017-13017 (DHCPv6)
    550       CVE-2017-13018 (PGM)
    551       CVE-2017-13019 (PGM)
    552       CVE-2017-13020 (VTP)
    553       CVE-2017-13021 (ICMPv6)
    554       CVE-2017-13022 (IP)
    555       CVE-2017-13023 (IPv6 mobility)
    556       CVE-2017-13024 (IPv6 mobility)
    557       CVE-2017-13025 (IPv6 mobility)
    558       CVE-2017-13026 (ISO IS-IS)
    559       CVE-2017-13027 (LLDP)
    560       CVE-2017-13028 (BOOTP)
    561       CVE-2017-13029 (PPP)
    562       CVE-2017-13030 (PIM)
    563       CVE-2017-13031 (IPv6 fragmentation header)
    564       CVE-2017-13032 (RADIUS)
    565       CVE-2017-13033 (VTP)
    566       CVE-2017-13034 (PGM)
    567       CVE-2017-13035 (ISO IS-IS)
    568       CVE-2017-13036 (OSPFv3)
    569       CVE-2017-13037 (IP)
    570       CVE-2017-13038 (PPP)
    571       CVE-2017-13039 (ISAKMP)
    572       CVE-2017-13040 (MPTCP)
    573       CVE-2017-13041 (ICMPv6)
    574       CVE-2017-13042 (HNCP)
    575       CVE-2017-13043 (BGP)
    576       CVE-2017-13044 (HNCP)
    577       CVE-2017-13045 (VQP)
    578       CVE-2017-13046 (BGP)
    579       CVE-2017-13047 (ISO ES-IS)
    580       CVE-2017-13048 (RSVP)
    581       CVE-2017-13049 (Rx)
    582       CVE-2017-13050 (RPKI-Router)
    583       CVE-2017-13051 (RSVP)
    584       CVE-2017-13052 (CFM)
    585       CVE-2017-13053 (BGP)
    586       CVE-2017-13054 (LLDP)
    587       CVE-2017-13055 (ISO IS-IS)
    588       CVE-2017-13687 (Cisco HDLC)
    589       CVE-2017-13688 (OLSR)
    590       CVE-2017-13689 (IKEv1)
    591       CVE-2017-13690 (IKEv2)
    592       CVE-2017-13725 (IPv6 routing headers)
    593 
    594 Sunday July 23, 2017 denis (a] ovsienko.info
    595   Summary for 4.9.1 tcpdump release
    596     CVE-2017-11108/Fix bounds checking for STP.
    597     Make assorted documentation updates and fix a few typos in tcpdump output.
    598     Fixup -C for file size >2GB (GH #488).
    599     Show AddressSanitizer presence in version output.
    600     Fix a bug in test scripts (exposed in GH #613).
    601     On FreeBSD adjust Capsicum capabilities for netmap.
    602     On Linux fix a use-after-free when the requested interface does not exist.
    603 
    604 Wednesday January 18, 2017 devel.fx.lebail (a] orange.fr
    605   Summary for 4.9.0 tcpdump release
    606     General updates:
    607     Fix some heap overflows found with American Fuzzy Lop by Hanno Boeck and others
    608         (More information in the log with CVE-2016-* and CVE-2017-*)
    609     Change the way protocols print link-layer addresses (Fix heap overflows
    610         in CALM-FAST and GeoNetworking printers)
    611     Pass correct caplen value to ether_print() and some other functions
    612     Fix lookup_nsap() to match what isonsap_string() expects
    613     Clean up relative time stamp printing (Fix an array overflow)
    614     Fix some alignment issues with GCC on Solaris 10 SPARC
    615     Add some ND_TTEST_/ND_TCHECK_ macros to simplify writing bounds checks
    616     Add a fn_printztn() which returns the number of bytes processed
    617     Add nd_init() and nd_cleanup() functions. Improve libsmi support
    618     Add CONTRIBUTING file
    619     Add a summary comment in all printers
    620     Compile with more warning options in devel mode if supported (-Wcast-qual, ...)
    621     Fix some leaks found by Valgrind/Memcheck
    622     Fix a bunch of de-constifications
    623     Squelch some Coverity warnings and some compiler warnings
    624     Update Coverity and Travis-CI setup
    625     Update Visual Studio files
    626 
    627     Frontend:
    628     Fix capsicum support to work with zerocopy buffers in bpf
    629     Try opening interfaces by name first, then by name-as-index
    630     Work around pcap_create() failures fetching time stamp type lists
    631     Fix a segmentation fault with 'tcpdump -J'
    632     Improve addrtostr6() bounds checking
    633     Add exit_tcpdump() function
    634     Don't drop CAP_SYS_CHROOT before chrooting
    635     Fixes issue where statistics not reported when -G and -W options used
    636 
    637     Updated printers:
    638     802.11: Beginnings of 11ac radiotap support
    639     802.11: Check the Protected bit for management frames
    640     802.11: Do bounds checking on last_presentp before dereferencing it (Fix a heap overflow)
    641     802.11: Fix the radiotap printer to handle the special bits correctly
    642     802.11: If we have the MCS field, it's 11n
    643     802.11: Only print unknown frame type or subtype messages once
    644     802.11: Radiotap dBm values get printed as dB; Update a test output accordingly
    645     802.11: Source and destination addresses were backwards
    646     AH: Add a bounds check
    647     AH: Report to our caller that dissection failed if a bounds check fails
    648     AP1394: Print src > dst, not dst > src
    649     ARP: Don't assume the target hardware address is <= 6 octets long (Fix a heap overflow)
    650     ATALK: Add bounds and length checks (Fix heap overflows)
    651     ATM: Add some bounds checks (Fix a heap overflow)
    652     ATM: Fix an incorrect bounds check
    653     BFD: Update specification from draft to RFC 5880
    654     BFD: Update to print optional authentication field
    655     BGP: Add support for the AIGP attribute (RFC7311)
    656     BGP: Print LARGE_COMMUNITY Path Attribute
    657     BGP: Update BGP numbers from IANA; Print minor values for FSM notification
    658     BOOTP: Add a bounds check
    659     Babel: Add decoder for source-specific extension
    660     CDP: Filter out non-printable characters
    661     CFM: Fixes to match the IEEE standard, additional bounds and length checks
    662     CSLIP: Add more bounds checks (Fix a heap overflow)
    663     ClassicalIPoATM: Add a bounds check on LLC+SNAP header (Fix a heap overflow)
    664     DHCP: Fix MUDURL and TZ options
    665     DHCPv6: Process MUDURL and TZ options
    666     DHCPv6: Update Status Codes with RFCs/IANA names
    667     DNS: Represent the "DNSSEC OK" bit as "DO" instead of "OK". Add a test case
    668     DTP: Improve packet integrity checks
    669     EGP: Fix bounds checks
    670     ESP: Don't use OpenSSL_add_all_algorithms() in OpenSSL 1.1.0 or later
    671     Ethernet: Add some bounds checking before calling isoclns_print (Fix a heap overflow)
    672     Ethernet: Print the Length/Type field as length when needed
    673     FDDI: Fix -e output for FDDI
    674     FR: Add some packet-length checks and improve Q.933 printing (Fix heap overflows)
    675     GRE: Add some bounds checks (Fix heap overflows)
    676     Geneve: Fix error message with invalid option length; Update list option classes
    677     HNCP: Fix incorrect time interval format. Fix handling of IPv4 prefixes
    678     ICMP6: Fetch a 32-bit big-endian quantity with EXTRACT_32BITS()
    679     IGMP: Add a length check
    680     IP: Add a bounds check (Fix a heap overflow)
    681     IP: Check before fetching the protocol version (Fix a heap overflow)
    682     IP: Don't try to dissect if IP version != 4 (Fix a heap overflow)
    683     IP: Stop processing IPPROTO_ values once we hit IPPROTO_IPCOMP
    684     IPComp: Check whether we have the CPI before we fetch it (Fix a heap overflow)
    685     IPoFC: Fix -e output (IP-over-Fibre Channel)
    686     IPv6: Don't overwrite the destination IPv6 address for routing headers
    687     IPv6: Fix header printing
    688     IPv6: Stop processing IPPROTO_ values once we hit IPPROTO_IPCOMP
    689     ISAKMP: Clean up parsing of IKEv2 Security Associations
    690     ISOCLNS/IS-IS: Add support for Purge Originator Identifier (RFC6232) and test cases
    691     ISOCLNS/IS-IS: Don't overwrite packet data when checking the signature
    692     ISOCLNS/IS-IS: Filter out non-printable characters
    693     ISOCLNS/IS-IS: Fix segmentation faults
    694     ISOCLNS/IS-IS: Have signature_verify() do the copying and clearing
    695     ISOCLNS: Add some bounds checks
    696     Juniper: Make sure a Juniper header TLV isn't bigger than what's left in the packet (Fix a heap overflow)
    697     LLC/SNAP: With -e, print the LLC header before the SNAP header; without it, cut the SNAP header
    698     LLC: Add a bounds check (Fix a heap overflow)
    699     LLC: Clean up printing of LLC packets
    700     LLC: Fix the printing of RFC 948-style IP packets
    701     LLC: Skip the LLC and SNAP headers with -x for 802.11 and some other protocols
    702     LLDP: Implement IANA OUI and LLDP MUD option
    703     MPLS LSP ping: Update printing for RFC 4379, bug fixes, more bounds checks
    704     MPLS: "length" is now the *remaining* packet length
    705     MPLS: Add bounds and length checks (Fix a heap overflow)
    706     NFS: Don't assume the ONC RPC header is nicely aligned
    707     NFS: Don't overflow the Opaque_Handle buffer (Fix a segmentation fault)
    708     NFS: Don't run past the end of an NFSv3 file handle
    709     OLSR: Add a test to cover a HNA sgw case
    710     OLSR: Fix 'Advertised networks' count
    711     OLSR: Fix printing of smart-gateway HNAs in IPv4
    712     OSPF: Add a bounds check for the Hello packet options
    713     OSPF: Do more bounds checking
    714     OSPF: Fix a segmentation fault
    715     OSPF: Fix printing 'ospf_topology_values' default
    716     OTV: Add missing bounds checks
    717     PGM: Print the formatted IP address, not the raw binary address, as a string
    718     PIM: Add some bounds checking (Fix a heap overflow)
    719     PIMv2: Fix checksumming of Register messages
    720     PPP: Add some bounds checks (Fix a heap overflow)
    721     PPP: Report invalid PAP AACK/ANAK packets
    722     Q.933: Add a missing bounds check
    723     RADIUS: Add Value 13 "VLAN" to Tunnel-Type attribute
    724     RADIUS: Filter out non-printable characters
    725     RADIUS: Translate UDP/1700 as RADIUS
    726     RESP: Do better checking of RESP packets
    727     RPKI-RTR: Add a return value check for "fn_printn" call
    728     RPKI-RTR: Remove printing when truncated condition already detected
    729     RPL: Fix 'Consistency Check' control code
    730     RPL: Fix suboption print
    731     RSVP: An INTEGRITY object in a submessage covers only the submessage
    732     RSVP: Fix an infinite loop; Add bounds and length checks
    733     RSVP: Fix some if statements missing brackets
    734     RSVP: Have signature_verify() do the copying and clearing
    735     RTCP: Add some bounds checks
    736     RTP: Add some bounds checks, fix two segmentation faults
    737     SCTP: Do more bounds checking
    738     SFLOW: Fix bounds checking
    739     SLOW: Fix bugs, add checks
    740     SMB: Before fetching the flags2 field, make sure we have it
    741     SMB: Do bounds checks on NBNS resource types and resource data lengths
    742     SNMP: Clean up the "have libsmi but no modules loaded" case
    743     SNMP: Clean up the object abbreviation list and fix the code to match them
    744     SNMP: Do bounds checks when printing character and octet strings
    745     SNMP: Improve ASN.1 bounds checks
    746     SNMP: More bounds and length checks
    747     STP: Add a bunch of bounds checks, and fix some printing (Fix heap overflows)
    748     STP: Filter out non-printable characters
    749     TCP: Add bounds and length checks for packets with TCP option 20
    750     TCP: Correct TCP option Kind value for TCP Auth and add SCPS-TP
    751     TCP: Fix two bounds checks (Fix heap overflows)
    752     TCP: Make sure we have the data offset field before fetching it (Fix a heap overflow)
    753     TCP: Put TCP-AO option decoding right
    754     TFTP: Don't use strchr() to scan packet data (Fix a heap overflow)
    755     Telnet: Add some bounds checks
    756     TokenRing: Fix -e output
    757     UDLD: Fix an infinite loop
    758     UDP: Add a bounds check (Fix a heap overflow)
    759     UDP: Check against the packet length first
    760     VAT: Add some bounds checks
    761     VTP: Add a test on Mgmt Domain Name length
    762     VTP: Add bounds checks and filter out non-printable characters
    763     VXLAN: Add a bound check and a test case
    764     ZeroMQ: Fix an infinite loop
    765 
    766 Tuesday October 25, 2016 mcr (a] sandelman.ca
    767   Summary for 4.8.1 tcpdump release
    768 	Fix "-x" for Apple PKTAP and PPI packets
    769         Improve separation frontend/backend (tcpdump/libnetdissect)
    770         Fix display of timestamps with -tt, -ttt and -ttttt options
    771         Add support for the Marvell Extended Distributed Switch Architecture header
    772         Use PRIx64 to print a 64-bit number in hex.
    773         Printer for HNCP (RFCs 7787 and 7788).
    774         dagid is always an IPv6 address, not an opaque 128-bit string, and other fixes to RPL printer.
    775         RSVP: Add bounds and length checks
    776         OSPF: Do more bounds checking
    777         Handle OpenSSL 1.1.x.
    778         Initial support for the REdis Serialization Protocol known as RESP.
    779         Add printing function for Generic Protocol Extension for VXLAN
    780             draft-ietf-nvo3-vxlan-gpe-01
    781         Network Service Header: draft-ietf-sfc-nsh-01
    782         Don't recompile the filter if the new file has the same DLT.
    783         Pass an adjusted struct pcap_pkthdr to the sub-printer.
    784         Add three test cases for already fixed CVEs
    785            CVE-2014-8767: OLSR
    786            CVE-2014-8768: Geonet
    787            CVE-2014-8769: AODV
    788         Don't do the DDP-over-UDP heuristic first: GitHub issue #499.
    789         Use the new debugging routines in libpcap.
    790         Harmonize TCP source or destination ports tests with UDP ones
    791         Introduce data types to use for integral values in packet structures.
    792         RSVP: Fix an infinite loop
    793         Support of Type 3 and Type 4 LISP packets.
    794         Don't require IPv6 library support in order to support IPv6 addresses.
    795         Many many changes to support libnetdissect usage.
    796         Add a test that makes unaligned accesses: GitHub issue #478.
    797         add a DNSSEC test case: GH #445 and GH #467.
    798         BGP: add decoding of ADD-PATH capability
    799         fixes to LLC header printing, and RFC948-style IP packets
    800 
    801 Friday April 10, 2015 guy (a] alum.mit.edu
    802   Summary for 4.7.4 tcpdump release
    803 	RPKI to Router Protocol: Fix Segmentation Faults and other problems
    804 	RPKI to Router Protocol: print strings with fn_printn()
    805 	wb: fix some bounds checks
    806 
    807 Wednesday March 11, 2015 mcr (a] sandelman.ca
    808   Summary for 4.7.3 tcpdump release
    809 	Capsicum fixes for FreeBSD 10
    810 
    811 Tuesday March 10, 2015 mcr (a] sandelman.ca
    812   Summary for 4.7.2 tcpdump release
    813 	DCCP: update Packet Types with RFC4340/IANA names
    814         fixes for CVE-2015-0261: IPv6 mobility header check issue
    815         fixes for CVE-2015-2153, 2154, 2155: kday packets
    816 
    817 Friday Nov. 12, 2014 guy (a] alum.mit.edu
    818   Summary for 4.7.0 tcpdump release
    819         changes to hex printing of CDP packets
    820 	Fix PPI printing
    821 	Radius: update Packet Type Codes and Attribute Types with RFC/IANA names
    822 	Add a routine to print "text protocols", and add FTP/HTTP/SMTP/RTSP support.
    823 	improvements to telnet printer, even if not -v
    824 	omit length for bcp, print-tcp uses it
    825 	formatting fixes for a bunch of protocols
    826 	new bounds checks for a number of protocols
    827 	split netflow 1,6, and 6 dissector up.
    828 	added geneve dissector
    829         CVE-2014-9140 PPP dissector fixed.
    830 
    831 Tuesday  Sep.  2, 2014 mcr (a] sandelman.ca
    832   Summary for 4.6.2 tcpdump release
    833 	fix out-of-source-tree builds: find libpcap that is out of source
    834 	better configure check for libsmi
    835 
    836 Saturday Jul. 19, 2014 mcr (a] sandelman.ca
    837   Summary for 4.6.1 tcpdump release
    838 	added FreeBSD capsicum
    839 	add a short option '#', same as long option '--number'
    840 
    841 Wednesday Jul. 2, 2014 mcr (a] sandelman.ca
    842   Summary for 4.6.0 tcpdump release
    843         all of tcpdump is now using the new "NDO" code base (Thanks Denis!)
    844         nflog, mobile, forces, pptp, AODV, AHCP, IPv6, OSPFv4, RPL, DHCPv6 enhancements/fixes
    845         M3UA decode added.
    846         many new test cases: 82 in 4.5.1 to 133 in 4.6.0
    847         many improvements to travis continuous integration system: OSX, and Coverity options
    848         cleaned up some unnecessary header files
    849         Added bittok2str().
    850         a number of unaligned access faults fixed
    851         -A flag does not consider CR to be printable anymore
    852         fx.lebail took over coverity baby sitting
    853         default snapshot size increased to 256K for accommodate USB captures
    854         WARNING: this release contains a lot of very worthwhile code churn.
    855 
    856 Wednesday Jan. 15, 2014 guy (a] alum.mit.edu
    857   Summary for 4.5.2 tcpdump release
    858 	Man page fix
    859 	Fix crashes on SPARC
    860 
    861 Monday Nov. 11, 2013 mcr (a] sandelman.ca
    862   Summary for 4.5.1 tcpdump release
    863 	CREDITS file fixes
    864 
    865 Thursday Nov. 7, 2013  mcr (a] sandelman.ca and guy (a] alum.mit.edu.
    866   Summary for 4.5.0 tcpdump release
    867         some NFSv4 fixes for printing
    868         fix printing of unknown TCP options, and tcp fast-open
    869         fixes for syslog parser
    870         some gcc-version-specific flag tuning
    871         adopt MacOS deprecation workarounds for openssl
    872         improvements to babel printing
    873         add OpenFlow 1.0 (no SSL) and test cases
    874         GeoNet printer.
    875         added STBC Rx support
    876         improvements to DHCPv6 decoder
    877         clarify which autoconf is needed
    878 	Point users to the the-tcpdump-group repository on GitHub rather
    879 	    than the mcr repository
    880 	Add MSDP printer.
    881 	Fixed IPv6 check on Solaris and other OSes requiring extra
    882 	    networking libraries.
    883 	Add support for VXLAN (draft-mahalingam-dutt-dcops-vxlan-03),
    884 	    and add "vxlan" as an option for -T.
    885 	Add support for OTV (draft-hasmit-otv-04).
    886         fixes for DLT_IEEE802_11_RADIO datalink types
    887         added MPTCP decoder
    888 
    889 Saturday April 6, 2013 guy (a] alum.mit.edu.
    890   Summary for 4.4.0 tcpdump release
    891 	RPKI-RTR (RFC6810) is now official (TCP Port 323)
    892 	Fix detection of OpenSSL libcrypto.
    893 	Add DNSSL (RFC6106) support.
    894 	Add "radius" as an option for -T.
    895 	Update Action codes for handle_action function according to
    896 	    802.11s amendment.
    897 	Decode DHCPv6 AFTR-Name option (RFC6334).
    898 	Updates for Babel.
    899 	Fix printing of infinite lifetime in ICMPv6.
    900 	Added support for SPB, SPBM Service Identifier, and Unicast
    901 	    Address sub-TLV in ISIS.
    902 	Decode RIPv2 authentication up to RFC4822.
    903 	Fix RIP Request/full table decoding issues.
    904 	On Linux systems with cap-ng.h, drop root privileges
    905 	    using Linux Capabilities.
    906 	Add support for reading multiple files.
    907 	Add MS NLB heartbeat printer.
    908 	Separate multiple nexthops in BGP.
    909 
    910 Wednesday  November 28, 2012 guy (a] alum.mit.edu.
    911   Summary for 4.3.1 tcpdump release
    912 	Print "LLDP, length N" for LLDP packets even when not in verbose
    913 	    mode, so something is printed even if only the timestamp is
    914 	    present
    915 	Document "-T carp"
    916 	Print NTP poll interval correctly (it's an exponent, so print
    917 	    both its raw value and 2^value)
    918 	Document that "-e" is used to get MAC addresses
    919 	More clearly document that you need to escape or quote
    920 	    backslashes in filter expressions on the command line
    921 	Fix some "the the" in the man page
    922 	Use the right maximum path length
    923 	Don't treat 192_1_2, when passed to -i, as an interface number
    924 
    925 Friday  April 3, 2012.  mcr (a] sandelman.ca.
    926   Summary for 4.3.0 tcpdump release
    927         fixes for forces: SPARSE data (per RFC 5810)
    928         some more test cases added
    929         updates to documentation on -l, -U and -w flags.
    930         Fix printing of BGP optional headers.
    931         Tried to include DLT_PFSYNC support, failed due to headers required.
    932         added TIPC support.
    933         Fix LLDP Network Policy bit definitions.
    934         fixes for IGMPv3's Max Response Time: it is in units of 0.1 second.
    935         SIGUSR1 can be used rather than SIGINFO for stats
    936         permit -n flag to affect print-ip for protocol numbers
    937         ND_OPT_ADVINTERVAL is in milliseconds, not seconds
    938         Teach PPPoE parser about RFC 4638
    939 
    940 
    941 Friday  December 9, 2011.  guy (a] alum.mit.edu.
    942   Summary for 4.2.1 tcpdump release
    943 	Only build the Babel printer if IPv6 is enabled.
    944 	Support Babel on port 6696 as well as 6697.
    945 	Include ppi.h in release tarball.
    946 	Include all the test files in the release tarball, and don't
    947 	 "include" test files that no longer exist.
    948 	Don't assume we have <rpc/rpc.h> - check for it.
    949 	Support "-T carp" as a way of dissecting IP protocol 112 as CARP
    950 	 rather than VRRP.
    951 	Support Hilscher NetAnalyzer link-layer header format.
    952 	Constify some pointers and fix compiler warnings.
    953 	Get rid of never-true test.
    954 	Fix an unintended fall-through in a case statement in the ARP
    955 	 printer.
    956 	Fix several cases where sizeof(sizeof(XXX)) was used when just
    957 	 sizeof(XXX) was intended.
    958 	Make stricter sanity checks in the ES-IS printer.
    959 	Get rid of some GCCisms that caused builds to fai with compilers
    960 	 that don't support them.
    961 	Fix typo in man page.
    962 	Added length checks to Babel printer.
    963 
    964 Sunday  July 24, 2011.  mcr (a] sandelman.ca.
    965   Summary for 4.2.+
    966 	merged 802.15.4 decoder from Dmitry Eremin-Solenikov <dbaryshkov
    967 	  at gmail dot com>
    968         updates to forces for new port numbers
    969         Use "-H", not "-h", for the 802.11s option. (-h always help)
    970         Better ICMPv6 checksum handling.
    971         add support for the RPKI/Router Protocol, per -ietf-sidr-rpki-rtr-12
    972         get rid of uuencoded pcap test files, git can do binary.
    973         sFlow changes for 64-bit counters.
    974         fixes for PPI packet header handling and printing.
    975         Add DCB Exchange protocol (DCBX) version 1.01.
    976         Babel dissector, from Juliusz Chroboczek and Grgoire Henry.
    977         improvements to radiotap for rate values > 127.
    978         Many improvements to ForCES decode, including fix SCTP TML port
    979         updated RPL type code to RPL-17 draft
    980         Improve printout of DHCPv6 options.
    981         added support and test case for QinQ (802.1q VLAN) packets
    982         Handle DLT_IEEE802_15_4_NOFCS like DLT_IEEE802_15_4.
    983         Build fixes for Sparc and other machines with alignment restrictions.
    984         Merged changes from Debian package.
    985         PGM: Add ACK decoding and add PGMCC DATA and FEEDBACK options.
    986         Build fixes for OSX (Snow Leopard and others)
    987         Add support for IEEE 802.15.4 packets
    988 
    989 Tue.    July 20, 2010.  guy (a] alum.mit.edu.
    990   Summary for 4.1.2 tcpdump release
    991 	If -U is specified, flush the file after creating it, so it's
    992 	  not zero-length
    993 	Fix TCP flags output description, and some typos, in the man
    994 	  page
    995 	Add a -h flag, and only attempt to recognize 802.11s mesh
    996 	  headers if it's set
    997 	When printing the link-layer type list, send *all* output to
    998 	  stderr
    999 	Include the CFLAGS setting when configure was run in the
   1000 	  compiler flags
   1001 
   1002 Thu.	April 1, 2010.  guy (a] alum.mit.edu.
   1003   Summary for 4.1.1 tcpdump release
   1004 	Fix build on systems with PF, such as FreeBSD and OpenBSD.
   1005 	Don't blow up if a zero-length link-layer address is passed to
   1006 	  linkaddr_string().
   1007 
   1008 Thu.	March 11, 2010.  ken (a] netfunctional.ca/guy (a] alum.mit.edu.
   1009   Summary for 4.1.0 tcpdump release
   1010 	Fix printing of MAC addresses for VLAN frames with a length
   1011 	  field
   1012 	Add some additional bounds checks and use the EXTRACT_ macros
   1013 	  more
   1014 	Add a -b flag to print the AS number in BGP packets in ASDOT
   1015 	  notation rather than ASPLAIN notation
   1016 	Add ICMPv6 RFC 5006 support
   1017 	Decode the access flags in NFS access requests
   1018 	Handle the new DLT_ for memory-mapped USB captures on Linux
   1019 	Make the default snapshot (-s) the maximum
   1020 	Print name of device (when -L is used)
   1021 	Support for OpenSolaris (and SXCE build 125 and later)
   1022 	Print new TCP flags
   1023 	Add support for RPL DIO
   1024 	Add support for TCP User Timeout (UTO)
   1025 	Add support for non-standard Ethertypes used by 3com PPPoE gear
   1026 	Add support for 802.11n and 802.11s
   1027 	Add support for Transparent Ethernet Bridge ethertype in GRE
   1028 	Add 4 byte AS support for BGP printer
   1029 	Add support for the MDT SAFI 66 BG printer
   1030 	Add basic IPv6 support to print-olsr
   1031 	Add USB printer
   1032 	Add printer for ForCES
   1033 	Handle frames with an FCS
   1034 	Handle 802.11n Control Wrapper, Block Acq Req and Block Ack frames
   1035 	Fix TCP sequence number printing
   1036 	Report 802.2 packets as 802.2 instead of 802.3
   1037 	Don't include -L/usr/lib in LDFLAGS
   1038 	On x86_64 Linux, look in lib64 directory too
   1039 	Lots of code clean ups
   1040 	Autoconf clean ups
   1041 	Update testcases to make output changes
   1042 	Fix compiling with/out smi (--with{,out}-smi)
   1043 	Fix compiling without IPv6 support (--disable-ipv6)
   1044 
   1045 Mon.    October 27, 2008.  ken (a] netfunctional.ca.  Summary for 4.0.0 tcpdump release
   1046         Add support for Bluetooth Sniffing
   1047         Add support for Realtek Remote Control Protocol (openrrcp.org.ru)
   1048         Add support for 802.11 AVS
   1049         Add support for SMB over TCP
   1050         Add support for 4 byte BGP AS printing
   1051         Add support for compiling on case-insensitive file systems
   1052         Add support for ikev2 printing
   1053         Update support for decoding AFS
   1054         Update DHCPv6 printer
   1055         Use newer libpcap API's (allows -B option on all platforms)
   1056         Add -I to turn on monitor mode
   1057         Bugfixes in lldp, lspping, dccp, ESP, NFS printers
   1058         Cleanup unused files and various cruft
   1059 
   1060 Mon.    September 10, 2007.  ken (a] xelerance.com.  Summary for 3.9.8 tcpdump release
   1061         Rework ARP printer
   1062         Rework OSPFv3 printer
   1063         Add support for Frame-Relay ARP
   1064         Decode DHCP Option 121 (RFC 3442 Classless Static Route)
   1065         Decode DHCP Option 249 (MS Classless Static Route) the same as Option 121
   1066         TLV: Add support for Juniper .pcap extensions
   1067         Print EGP header in new-world-order style
   1068         Converted print-isakmp.c to NETDISSECT
   1069         Moved AF specific stuff into af.h
   1070         Test subsystem now table driven, and saves outputs and diffs to one place
   1071         Require <net/pfvar.h> for pf definitions - allows reading of pflog formatted
   1072          libpcap files on an OS other than where the file was generated
   1073 
   1074 
   1075 Wed.	July 23, 2007.  mcr (a] xelerance.com.  Summary for 3.9.7 libpcap release
   1076 
   1077 	NFS: Print unsigned values as such.
   1078 	RX: parse safely.
   1079 	BGP: fixes for IPv6-less builds.
   1080 	801.1ag: use standard codepoint.
   1081 	use /dev/bpf on systems with such a device.
   1082 	802.11: print QoS data, avoid dissect of no-data frame, ignore padding.
   1083 	smb: make sure that we haven't gone past the end of the captured data.
   1084 	smb: squelch an uninitialized complaint from coverity.
   1085 	NFS: from NetBSD; don't interpret the reply as a possible NFS reply
   1086 		if it got MSG_DENIED.
   1087 	BGP: don't print TLV values that didn't fit, from www.digit-labs.org.
   1088 	revised INSTALL.txt about libpcap dependency.
   1089 
   1090 Wed.	April 25, 2007. ken (a] xelerance.com.  Summary for 3.9.6 tcpdump release
   1091 	Update man page to reflect changes to libpcap
   1092 	Changes to both TCP and IP Printer Output
   1093 	Fix a potential buffer overflow in the 802.11 printer
   1094 	Print basic info about a few more Cisco LAN protocols.
   1095 	mDNS cleanup
   1096 	ICMP MPLS rework of the extension code
   1097 	bugfix: use the correct codepoint for the OSPF simple text auth token
   1098 	 entry, and use safeputs to print the password.
   1099 	Add support in pflog for additional values
   1100 	Add support for OIF RSVP Extensions UNI 1.0 Rev. 2 and additional RSVP objects
   1101 	Add support for the Message-id NACK c-type.
   1102 	Add support for 802.3ah loopback ctrl msg
   1103 	Add support for Multiple-STP as per 802.1s
   1104 	Add support for rapid-SPT as per 802.1w
   1105 	Add support for CFM Link-trace msg, Link-trace-Reply msg,
   1106 	 Sender-ID tlv, private tlv, port, interface status
   1107 	Add support for unidirectional link detection as per
   1108 	 https://tools.ietf.org/id/draft-foschiano-udld-02.txt
   1109 	Add support for the olsr protocol as per RFC 3626 plus the LQ
   1110 	 extensions from olsr.org
   1111 	Add support for variable-length checksum in DCCP, as per section 9 of
   1112 	 RFC 4340.
   1113 	Add support for per-VLAN spanning tree and per-VLAN rapid spanning tree
   1114 	Add support for Multiple-STP as per 802.1s
   1115 	Add support for the cisco proprietary 'dynamic trunking protocol'
   1116 	Add support for the cisco proprietary VTP protocol
   1117 	Update dhcp6 options table as per IETF standardization activities
   1118 
   1119 
   1120 Tue.	September 19, 2006. ken (a] xelerance.com. Summary for 3.9.5 tcpdump release
   1121 
   1122 	Fix compiling on AIX (, at end of ENUM)
   1123 	Updated list of DNS RR typecodes
   1124 	Use local Ethernet defs on WIN32
   1125 	Add support for Frame-Relay ARP
   1126 	Fixes for compiling under MSVC++
   1127 	Add support for parsing Juniper .pcap files
   1128 	Add support for FRF.16 Multilink Frame-Relay (DLT_MFR)
   1129 	Rework the OSPFv3 printer
   1130 	Fix printing for 4.4BSD/NetBSD NFS Filehandles
   1131 	Add support for Cisco style NLPID encapsulation
   1132 	Add cisco prop. eigrp related, extended communities
   1133 	Add support for BGP signaled VPLS
   1134 	Cleanup the bootp printer
   1135 	Add support for PPP over Frame-Relay
   1136 	Add some bounds checking to the IP options code, and clean up
   1137 	 the options output a bit.
   1138 	Add additional modp groups to ISAKMP printer
   1139 	Add support for Address-Withdraw and Label-Withdraw Msgs
   1140 	Add support for the BFD Discriminator TLV
   1141 	Fixes for 64bit compiling
   1142 	Add support for PIMv2 checksum verification
   1143 	Add support for further dissection of the IPCP Compression Option
   1144 	Add support for Cisco's proposed VQP protocol
   1145 	Add basic support for keyed authentication TCP option
   1146 	Lots of minor cosmetic changes to output printers
   1147 
   1148 
   1149 Mon.	September 19, 2005.  ken (a] xelerance.com. Summary for 3.9.4 tcpdump release
   1150 	Decoder support for more Juniper link-layer types
   1151 	Fix a potential buffer overflow (although it can't occur in
   1152 		practice).
   1153 	Fix the handling of unknown management frame types in the 802.11
   1154 		printer.
   1155 	Add FRF.16 support, fix various Frame Relay bugs.
   1156 	Add support for RSVP integrity objects, update fast-reroute
   1157 		object printer to latest spec.
   1158 	Clean up documentation of vlan filter expression, document mpls
   1159 		filter expression.
   1160 	Document new pppoed and pppoes filter expressions.
   1161 	Update diffserver-TE codepoints as per RFC 4124.
   1162 	Spelling fixes in ICMPv6.
   1163 	Don't require any fields other than flags to be present in IS-IS
   1164 		restart signaling TLVs, and only print the system ID in
   1165 		those TLVs as system IDs, not as node IDs.
   1166 	Support for DCCP.
   1167 
   1168 Tue.	July 5, 2005.  ken (a] xelerance.com. Summary for 3.9.3 tcpdump release
   1169 
   1170 	Option to chroot() when dropping privs
   1171 	Fixes for compiling on nearly every platform,
   1172 		including improved 64bit support
   1173 	Many new testcases
   1174 	Support for sending packets
   1175 	Many compilation fixes on most platforms
   1176 	Fixes for recent version of GCC to eliminate warnings
   1177 	Improved Unicode support
   1178 
   1179 	Decoders & DLT Changes, Updates and New:
   1180 		AES ESP support
   1181 		Juniper ATM, FRF.15, FRF.16, PPPoE,
   1182 			ML-FR, ML-PIC, ML-PPP, PL-PPP, LS-PIC
   1183 			GGSN,ES,MONITOR,SERVICES
   1184 		L2VPN
   1185 		Axent Raptor/Symantec Firewall
   1186 		TCP-MD5 (RFC 2385)
   1187 		ESP-in-UDP (RFC 3948)
   1188 		ATM OAM
   1189 		LMP, LMP Service Discovery
   1190 		IP over FC
   1191 		IP over IEEE 1394
   1192 		BACnet MS/TP
   1193 		SS7
   1194 		LDP over TCP
   1195 		LACP, MARKER as per 802.3ad
   1196 		PGM (RFC 3208)
   1197 		LSP-PING
   1198 		G.7041/Y.1303 Generic Framing Procedure
   1199 		EIGRP-IP, EIGRP-IPX
   1200 		ICMP6
   1201 		Radio - via radiotap
   1202 		DHCPv6
   1203 		HDLC over PPP
   1204 
   1205 Tue.   March 30, 2004. mcr (a] sandelman.ottawa.on.ca. Summary for 3.8.3 release
   1206 
   1207 	No changes from 3.8.2. Version bumped only to maintain consistency
   1208 	with libpcap 0.8.3.
   1209 
   1210 Mon.   March 29, 2004. mcr (a] sandelman.ottawa.on.ca. Summary for 3.8.2 release
   1211 
   1212 	Fixes for print-isakmp.c      CVE:    CAN-2004-0183, CAN-2004-0184
   1213 	https://web.archive.org/web/20160328035955/https://www.rapid7.com/resources/advisories/R7-0017.jsp
   1214 	IP-over-IEEE1394 printing.
   1215 	some MINGW32 changes.
   1216 	updates for autoconf 2.5
   1217 	fixes for print-aodv.c - check for too short packets
   1218 	formatting changes to print-ascii for hex output.
   1219 	check for too short packets: print-bgp.c, print-bootp.c, print-cdp.c,
   1220 		print-chdlc.c, print-domain.c, print-icmp.c, print-icmp6.c,
   1221 		print-ip.c, print-lwres.c, print-ospf.c, print-pim.c,
   1222 		print-ppp.c,print-pppoe.c, print-rsvp.c, print-wb.c
   1223 	print-ether.c - better handling of unknown types.
   1224 	print-isoclns.c - additional decoding of types.
   1225 	print-llc.c - strings for LLC names added.
   1226 	print-pfloc.c - various enhancements
   1227 	print-radius.c - better decoding to strings.
   1228 
   1229 Wed.   November 12, 2003. mcr (a] sandelman.ottawa.on.ca. Summary for 3.8 release
   1230 
   1231 	changed syntax of -E argument so that multiple SAs can be decrypted
   1232 	fixes for Digital Unix headers and Documentation
   1233 	__attribute__ fixes
   1234 	CDP changes from Terry Kennedy <terry (a] tmk.com>.
   1235 	IPv6 mobility updates from Kazushi Sugyo <sugyo (a] pb.jp.nec.com>
   1236 	Fixes for ASN.1 decoder for 2.100.3 forms.
   1237 	Added a count of packets received and processed to clarify numbers.
   1238 	Incorporated WinDUMP patches for Win32 builds.
   1239 	PPPoE payload length headers.
   1240 	Fixes for HP C compiler builds.
   1241 	Use new pcap_breakloop() and pcap_findalldevs() if we can.
   1242 	BGP output split into multiple lines.
   1243 	Fixes to 802.11 decoding.
   1244 	Fixes to PIM decoder.
   1245 	SuperH is a CPU that can't handle unaligned access. Many fixes for
   1246 		unaligned access work.
   1247 	Fixes to Frame-Relay decoder for Q.933/922 frames.
   1248 	Clarified when Solaris can do captures as non-root.
   1249 	Added tests/ subdir for examples/regression tests.
   1250 	New -U flag.	-flush stdout after every packet
   1251 	New -A flag	-print ascii only
   1252 	support for decoding IS-IS inside Cisco HDLC Frames
   1253 	more verbosity for tftp decoder
   1254 	mDNS decoder
   1255 	new BFD decoder
   1256 	cross compilation patches
   1257 	RFC 3561 AODV support.
   1258 	UDP/TCP pseudo-checksum properly for source-route options.
   1259 	sanitized all files to modified BSD license
   1260 	Add support for RFC 2625 IP-over-Fibre Channel.
   1261 	fixes for DECnet support.
   1262 	Support RFC 2684 bridging of Ethernet, 802.5 Token Ring, and FDDI.
   1263 	RFC 2684 encapsulation of BPDUs.
   1264 
   1265 Tuesday, February 25, 2003. fenner (a] research.att.com.  3.7.2 release
   1266 
   1267 	Fixed infinite loop when parsing invalid isakmp packets.
   1268 	 (reported by iDefense; already fixed in CVS)
   1269 	Fixed infinite loop when parsing invalid BGP packets.
   1270 	Fixed buffer overflow with certain invalid NFS packets.
   1271 	Pretty-print unprintable network names in 802.11 printer.
   1272 	Handle truncated nbp (appletalk) packets.
   1273 	Updated DHCPv6 printer to match draft-ietf-dhc-dhcpv6-22.txt
   1274 	Print IP protocol name even if we don't have a printer for it.
   1275 	Print IP protocol name or number for fragments.
   1276 	Print the whole MPLS label stack, not just the top label.
   1277 	Print request header and file handle for NFS v3 FSINFO and PATHCONF
   1278 	 requests.
   1279 	Fix NFS packet truncation checks.
   1280 	Handle "old" DR-Priority and Bidir-Capable PIM HELLO options.
   1281 	Handle unknown RADIUS attributes properly.
   1282 	Fix an ASN.1 parsing error that would cause e.g. the OID
   1283 	 2.100.3 to be misrepresented as 4.20.3 .
   1284 
   1285 Monday, January 21, 2002. mcr (a] sandelman.ottawa.on.ca. Summary for 3.7 release
   1286 	keyword "ipx" added.
   1287 	Better OSI/802.2 support on Linux.
   1288 	IEEE 802.11 support, from clenahan (a] fortresstech.com, achirica (a] ttd.net.
   1289 	LLC SAP support for FDDI/token ring/RFC-1483 style ATM
   1290 	BXXP protocol was replaced by the BEEP protocol;
   1291 	improvements to SNAP demux.
   1292 	Changes to "any" interface documentation.
   1293 	Documentation on pcap_stats() counters.
   1294 	Fix a memory leak found by Miklos Szeredi - pcap_ether_aton().
   1295 	Added MPLS encapsulation decoding per RFC3032.
   1296 	DNS dissector handles TKEY, TSIG and IXFR.
   1297 	adaptive SLIP interface patch from Igor Khristophorov <igor (a] atdot.org>
   1298 	SMB printing has much improved bounds checks
   1299 	OUI 0x0000f8 decoded as encapsulated ethernet for Cisco-custom bridging
   1300 	Zephyr support, from Nickolai Zeldovich <kolya (a] MIT.EDU>.
   1301 	Solaris - devices with digits in them. Stefan Hudson <hudson (a] mbay.net>
   1302 	IPX socket 0x85be is for Cisco EIGRP over IPX.
   1303 	Improvements to fragmented ESP handling.
   1304 	SCTP support from Armando L. Caro Jr. <acaro (a] mail.eecis.udel.edu>
   1305 	Linux ARPHDR_ATM support fixed.
   1306 	Added a "netbeui" keyword, which selects NetBEUI packets.
   1307 	IPv6 ND improvements, MobileIP dissector, 2292bis-02 for RA option.
   1308 	Handle ARPHDR_HDLC from Marcus Felipe Pereira <marcus (a] task.com.br>.
   1309 	Handle IPX socket 0x553 -> NetBIOS-over-IPX socket, "nwlink-dgm"
   1310 	Better Linux libc5 compat.
   1311 	BIND9 lwres dissector added.
   1312 	MIPS and SPARC get strict alignment macros (affects print-bgp.c)
   1313 	Apple LocalTalk LINKTYPE_ reserved.
   1314 	New time stamp formats documented.
   1315 	DHCP6 updated to draft-22.txt spec.
   1316 	ICMP types/codes now accept symbolic names.
   1317 	Add SIGINFO handler from LBL
   1318 	encrypted CIPE tunnels in IRIX, from Franz Schaefer <schaefer (a] mond.at>.
   1319 	now we are -Wstrict-prototype clean.
   1320 	NetBSD DLT_PPP_ETHER; adapted from Martin Husemann <martin (a] netbsd.org>.
   1321 	PPPoE dissector cleaned up.
   1322 	Support for LocalTalk hardware, from Uns Lider <unslider (a] miranda.org>.
   1323 	In dissector, now the caller prints the IP addresses rather than proto.
   1324 	cjclark (a] alum.mit.edu: print the IP proto for non-initial fragments.
   1325 	LLC frames with a DSAP and LSAP of 0xe0 are IPX frames.
   1326 	Linux cooked frames with a type value of LINUX_SLL_P_802_3 are IPX.
   1327 	captures on the "any" device won't be done in promiscuous mode
   1328 	Token Ring support on DLPI - Onno van der Linden <onno (a] simplex.nl>
   1329 	ARCNet support, from NetBSD.
   1330 	HSRP dissector, from Julian Cowley <julian (a] lava.net>.
   1331 	Handle (GRE-encapsulated) PPTP
   1332 	added -C option to rotate save file every optarg * 1,000,000 bytes.
   1333 	support for "vrrp" name - NetBSD, by Klaus Klein <kleink (a] netbsd.org>.
   1334 	PPTP support, from Motonori Shindo <mshindo (a] mshindo.net>.
   1335 	IS-IS over PPP support, from Hannes Gredler <hannes (a] juniper.net>.
   1336 	CNFP support for IPv6,format. Harry Raaymakers <harryr (a] connect.com.au>.
   1337 	ESP printing updated to RFC2406.
   1338 	HP-UX can now handle large number of PPAs.
   1339 	MSDP printer added.
   1340 	L2TP dissector improvements from Motonori Shindo.
   1341 
   1342 Tuesday January 9, 2001. mcr (a] sandelman.ottawa.on.ca. Summary for 3.6 release
   1343 	Cleaned up documentation.
   1344 	Promisc mode fixes for Linux
   1345 	IPsec changes/cleanups.
   1346 	Alignment fixes for picky architectures
   1347 
   1348 	Removed dependency on native headers for packet dissectors.
   1349 	Removed Linux specific headers that were shipped
   1350 
   1351 	libpcap changes provide for exchanging capture files between
   1352 	  systems. Save files now have well known PACKET_ values instead of
   1353 	  depending upon system dependent mappings of DLT_* types.
   1354 
   1355 	Support for computing/checking IP and UDP/TCP checksums.
   1356 
   1357 	Updated autoconf stock files.
   1358 
   1359 	IPv6 improvements: dhcp (draft-15), mobile-ip6, ppp, ospf6,
   1360 
   1361 	Added dissector support for: ISOCLNS, Token Ring, IGMPv3, bxxp,
   1362 		timed, vrrp, radius, chdlc, cnfp, cdp, IEEE802.1d, raw-AppleTalk
   1363 
   1364 	Added filtering support for: VLANs, ESIS, ISIS
   1365 
   1366 	Improvements to: print-telnet, IPTalk, bootp/dhcp, ECN, PPP,
   1367 		L2TP, PPPoE
   1368 
   1369 	HP-UX 11.0 -- find the right dlpi device.
   1370 	Solaris 8 - IPv6 works
   1371 	Linux - Added support for an "any" device to capture on all interfaces
   1372 
   1373 	Security fixes: buffer overrun audit done. Strcpy replaced with
   1374 		strlcpy, sprintf replaced with snprintf.
   1375 	Look for lex problems, and warn about them.
   1376 
   1377 
   1378 v3.5 Fri Jan 28 18:00:00 PST 2000
   1379 
   1380 Bill Fenner <fenner (a] research.att.com>
   1381 - switch to config.h for autoconf
   1382 - unify RCSID strings
   1383 - Updated PIMv1, PIMv2, DVMRP, IGMP parsers, add Cisco Auto-RP parser
   1384 - Really fix the RIP printer
   1385 - Fix MAC address -> name translation.
   1386 - some -Wall -Wformat fixes
   1387 - update makemib to parse much of SMIv2
   1388 - Print TCP sequence # with -vv even if you normally wouldn't
   1389 - Print as much of IP/TCP/UDP headers as possible even if truncated.
   1390 
   1391 itojun (a] iijlab.net
   1392 - -X will make a ascii dump.  from netbsd.
   1393 - telnet command sequence decoder (ff xx xx).  from netbsd.
   1394 - print-bgp.c: improve options printing.  ugly code exists for
   1395   unaligned option parsing (need some fix).
   1396 - const poisoning in SMB decoder.
   1397 - -Wall -Werror clean checks.
   1398 - bring in KAME IPv6/IPsec decoding code.
   1399 
   1400 Assar Westerlund  <assar (a] sics.se>
   1401 - SNMPv2 and SNMPv3 printer
   1402 - If compiled with libsmi, tcpdump can load MIBs on the fly to decode
   1403   SNMP packets.
   1404 - Incorporate NFS parsing code from NetBSD.  Adds support for nfsv3.
   1405 - portability fixes
   1406 - permit building in different directories.
   1407 
   1408 Ken Hornstein <kenh (a] cmf.nrl.navy.mil>
   1409 - bring in code at
   1410   /afs/transarc.com/public/afs-contrib/tools/tcpdump for parsing
   1411   AFS3 packets
   1412 
   1413 Andrew Tridgell <tridge (a] linuxcare.com>
   1414 - SMB printing code
   1415 
   1416 Love <lha (a] stacken.kth.se>
   1417 - print-rx.c: add code for printing MakeDir and StoreStatus.  Also
   1418   change date format to the right one.
   1419 
   1420 Michael C. Richardson  <mcr (a] sandelman.ottawa.on.ca>
   1421 - Created tcpdump.org repository
   1422 
   1423 v3.4 Sat Jul 25 12:40:55 PDT 1998
   1424 
   1425 - Hardwire Linux slip support since it's too hard to detect.
   1426 
   1427 - Redo configuration of "network" libraries (-lsocket and -lnsl) to
   1428   deal with IRIX. Thanks to John Hawkinson (jhawk (a] mit.edu)
   1429 
   1430 - Added -a which tries to translate network and broadcast addresses to
   1431   names. Suggested by Rob van Nieuwkerk (robn (a] verdi.et.tudelft.nl)
   1432 
   1433 - Added a configure option to disable gcc.
   1434 
   1435 - Added a "raw" packet printer.
   1436 
   1437 - Not having an interface address is no longer fatal. Requested by John
   1438   Hawkinson.
   1439 
   1440 - Rework signal setup to accommodate Linux.
   1441 
   1442 - OSPF truncation check fix. Also display the type of OSPF packets
   1443   using MD5 authentication. Thanks to Brian Wellington
   1444   (bwelling (a] tis.com)
   1445 
   1446 - Fix truncation check bugs in the Kerberos printer. Reported by Ezra
   1447   Peisach (epeisach (a] mit.edu)
   1448 
   1449 - Don't catch SIGHUP when invoked with nohup(1). Thanks to Dave Plonka
   1450   (plonka (a] mfa.com)
   1451 
   1452 - Specify full install target as a way of detecting if install
   1453   directory does not exist. Thanks to Dave Plonka.
   1454 
   1455 - Bit-swap FDDI addresses for BSD/OS too. Thanks to Paul Vixie
   1456   (paul (a] vix.com)
   1457 
   1458 - Fix off-by-one bug when testing size of ethernet packets. Thanks to
   1459   Marty Leisner (leisner (a] sdsp.mc.xerox.com)
   1460 
   1461 - Add a local autoconf macro to check for routines in libraries; the
   1462   autoconf version is broken (it only puts the library name in the
   1463   cache variable name). Thanks to John Hawkinson.
   1464 
   1465 - Add a local autoconf macro to check for types; the autoconf version
   1466   is broken (it uses grep instead of actually compiling a code fragment).
   1467 
   1468 - Modified to support the new BSD/OS 2.1 PPP and SLIP link layer header
   1469   formats.
   1470 
   1471 - Extend OSF ip header workaround to versions 1 and 2.
   1472 
   1473 - Fix some signed problems in the nfs printer. As reported by David
   1474   Sacerdote (davids (a] silence.secnet.com)
   1475 
   1476 - Detect group wheel and use it as the default since BSD/OS' install
   1477   can't hack numeric groups. Reported by David Sacerdote.
   1478 
   1479 - AIX needs special loader options. Thanks to Jonathan I. Kamens
   1480   (jik (a] cam.ov.com)
   1481 
   1482 - Fixed the nfs printer to print port numbers in decimal. Thanks to
   1483   Kent Vander Velden (graphix (a] iastate.edu)
   1484 
   1485 - Find installed libpcap in /usr/local/lib when not using gcc.
   1486 
   1487 - Disallow network masks with non-network bits set.
   1488 
   1489 - Attempt to detect "egcs" versions of gcc.
   1490 
   1491 - Add missing closing double quotes when displaying bootp strings.
   1492   Reported by Viet-Trung Luu (vluu (a] picard.math.uwaterloo.ca)
   1493 
   1494 v3.3 Sat Nov 30 20:56:27 PST 1996
   1495 
   1496 - Added Linux support.
   1497 
   1498 - GRE encapsulated packet printer thanks to John Hawkinson
   1499   (jhawk (a] mit.edu)
   1500 
   1501 - Rewrite gmt2local() to avoid problematic os dependencies.
   1502 
   1503 - Suppress nfs truncation message on errors.
   1504 
   1505 - Add missing m4 quoting in AC_LBL_UNALIGNED_ACCESS autoconf macro.
   1506   Reported by Joachim Ott (ott (a] ardala.han.de)
   1507 
   1508 - Enable "ip_hl vs. ip_vhl" workaround for OSF4 too.
   1509 
   1510 - Print arp hardware type in host order. Thanks to Onno van der Linden
   1511   (onno (a] simplex.nl)
   1512 
   1513 - Avoid solaris compiler warnings. Thanks to Bruce Barnett
   1514   (barnett (a] grymoire.crd.ge.com)
   1515 
   1516 - Fix rip printer to not print one more route than is actually in the
   1517   packet. Thanks to Jean-Luc Richier (Jean-Luc.Richier (a] imag.fr) and
   1518   Bill Fenner (fenner (a] parc.xerox.com)
   1519 
   1520 - Use autoconf endian detection since BYTE_ORDER isn't defined on all systems.
   1521 
   1522 - Fix dvmrp printer truncation checks and add a dvmrp probe printer.
   1523   Thanks to Danny J. Mitzel (mitzel (a] ipsilon.com)
   1524 
   1525 - Rewrite ospf printer to improve truncation checks.
   1526 
   1527 - Don't parse tcp options past the EOL. As noted by David Sacerdote
   1528   (davids (a] secnet.com). Also, check tcp options to make sure they ar
   1529   actually in the tcp header (in addition to the normal truncation
   1530   checks). Fix the SACK code to print the N blocks (instead of the
   1531   first block N times).
   1532 
   1533 - Don't say really small UDP packets are truncated just because they
   1534   aren't big enough to be a RPC. As noted by David Sacerdote.
   1535 
   1536 v3.2.1 Sun Jul 14 03:02:26 PDT 1996
   1537 
   1538 - Added rfc1716 icmp codes as suggested by Martin Fredriksson
   1539   (martin (a] msp.se)
   1540 
   1541 - Print mtu for icmp unreach need frag packets. Thanks to John
   1542   Hawkinson (jhawk (a] mit.edu)
   1543 
   1544 - Decode icmp router discovery messages. Thanks to Jeffrey Honig
   1545   (jch (a] bsdi.com)
   1546 
   1547 - Added a printer entry for DLT_IEEE802 as suggested by Tak Kushida
   1548   (kushida (a] trl.ibm.co.jp)
   1549 
   1550 - Check igmp checksum if possible. Thanks to John Hawkinson.
   1551 
   1552 - Made changes for SINIX. Thanks to Andrej Borsenkow
   1553   (borsenkow.msk (a] sni.de)
   1554 
   1555 - Use autoconf's idea of the top level directory in install targets.
   1556   Thanks to John Hawkinson.
   1557 
   1558 - Avoid infinite loop in tcp options printing code. Thanks to Jeffrey
   1559   Mogul (mogul (a] pa.dec.com)
   1560 
   1561 - Avoid using -lsocket in IRIX 5.2 and earlier since it breaks snoop.
   1562   Thanks to John Hawkinson.
   1563 
   1564 - Added some more packet truncation checks.
   1565 
   1566 - On systems that have it, use sigset() instead of signal() since
   1567   signal() has different semantics on these systems.
   1568 
   1569 - Fixed some more alignment problems on the alpha.
   1570 
   1571 - Add code to massage unprintable characters in the domain and ipx
   1572   printers. Thanks to John Hawkinson.
   1573 
   1574 - Added explicit netmask support. Thanks to Steve Nuchia
   1575   (steve (a] research.oknet.com)
   1576 
   1577 - Add "sca" keyword (for DEC cluster services) as suggested by Terry
   1578   Kennedy (terry (a] spcvxa.spc.edu)
   1579 
   1580 - Add "atalk" keyword as suggested by John Hawkinson.
   1581 
   1582 - Added an igrp printer. Thanks to Francis Dupont
   1583   (francis.dupont (a] inria.fr)
   1584 
   1585 - Print IPX net numbers in hex a la Novell Netware. Thanks to Terry
   1586   Kennedy (terry (a] spcvxa.spc.edu)
   1587 
   1588 - Fixed snmp extended tag field parsing bug. Thanks to Pascal Hennequin
   1589   (pascal.hennequin (a] hugo.int-evry.fr)
   1590 
   1591 - Added some ETHERTYPEs missing on some systems.
   1592 
   1593 - Added truncated packet macros and various checks.
   1594 
   1595 - Fixed endian problems with the DECnet printer.
   1596 
   1597 - Use $CC when checking gcc version. Thanks to Carl Lindberg
   1598   (carl_lindberg (a] blacksmith.com)
   1599 
   1600 - Fixes for AIX (although this system is not yet supported). Thanks to
   1601   John Hawkinson.
   1602 
   1603 - Fix bugs in the autoconf misaligned accesses code fragment.
   1604 
   1605 - Include sys/param.h to get BYTE_ORDER in a few places. Thanks to
   1606   Pavlin Ivanov Radoslavov (pavlin (a] cs.titech.ac.jp)
   1607 
   1608 v3.2 Sun Jun 23 02:28:10 PDT 1996
   1609 
   1610 - Print new icmp unreachable codes as suggested by Martin Fredriksson
   1611   (martin (a] msp.se). Also print code value when unknown for icmp redirect
   1612   and time exceeded.
   1613 
   1614 - Fix an alignment endian bug in getname(). Thanks to John Hawkinson.
   1615 
   1616 - Define "new" domain record types if not found in arpa/nameserv.h.
   1617   Resulted from a suggestion from John Hawkinson (jhawk (a] mit.edu). Also
   1618   fixed an endian bug when printing mx record and added some new record
   1619   types.
   1620 
   1621 - Added RIP V2 support. Thanks to Jeffrey Honig (jch (a] bsdi.com)
   1622 
   1623 - Added T/TCP options printing. As suggested by Richard Stevens
   1624   (rstevens (a] noao.edu)
   1625 
   1626 - Use autoconf to detect architectures that can't handle misaligned
   1627   accesses.
   1628 
   1629 v3.1 Thu Jun 13 20:59:32 PDT 1996
   1630 
   1631 - Changed u_int32/int32 to u_int32_t/int32_t to be consistent with bsd
   1632   and bind (as suggested by Charles Hannum).
   1633 
   1634 - Port to GNU autoconf.
   1635 
   1636 - Add support for printing DVMRP and PIM traffic thanks to
   1637   Havard Eidnes (Havard.Eidnes (a] runit.sintef.no).
   1638 
   1639 - Fix AppleTalk, IPX and DECnet byte order problems due to wrong endian
   1640   define being referenced. Reported by Terry Kennedy.
   1641 
   1642 - Minor fixes to the man page thanks to Mark Andrews.
   1643 
   1644 - Endian fixes to RTP and vat packet dumpers, thanks to Bruce Mah
   1645   (bmah (a] cs.berkeley.edu).
   1646 
   1647 - Added support for new dns types, thanks to Rainer Orth.
   1648 
   1649 - Fixed tftp_print() to print the block number for ACKs.
   1650 
   1651 - Document -dd and -ddd. Resulted from a bug report from Charlie Slater
   1652   (cslater (a] imatek.com).
   1653 
   1654 - Check return status from malloc/calloc/etc.
   1655 
   1656 - Check return status from pcap_loop() so we can print an error and
   1657   exit with a bad status if there were problems.
   1658 
   1659 - Bail if ip option length is <= 0. Resulted from a bug report from
   1660   Darren Reed (darrenr (a] vitruvius.arbld.unimelb.edu.au).
   1661 
   1662 - Print out a little more information for sun rpc packets.
   1663 
   1664 - Add support for Kerberos 4 thanks to John Hawkinson (jhawk (a] mit.edu).
   1665 
   1666 - Fixed the Fix EXTRACT_SHORT() and EXTRACT_LONG() macros (which were
   1667   wrong on little endian machines).
   1668 
   1669 - Fixed alignment bug in ipx_decode(). Thanks to Matt Crawford
   1670   (crawdad (a] fnal.gov).
   1671 
   1672 - Fix ntp_print() to not print garbage when the stratum is
   1673   "unspecified." Thanks to Deus Ex Machina (root (a] belle.bork.com).
   1674 
   1675 - Rewrote tcp options printer code to check for truncation. Added
   1676   selective acknowledgment case.
   1677 
   1678 - Fixed an endian bug in the ospf printer. Thanks to Jeffrey C Honig
   1679   (jch (a] bsdi.com)
   1680 
   1681 - Fix rip printer to handle 4.4 BSD sockaddr struct which only uses one
   1682   octet for the sa_family member. Thanks to Yoshitaka Tokugawa
   1683   (toku (a] dit.co.jp)
   1684 
   1685 - Don't checksum ip header if we don't have all of it. Thanks to John
   1686   Hawkinson (jhawk (a] mit.edu).
   1687 
   1688 - Print out hostnames if possible in egp printer. Thanks to Jeffrey
   1689   Honig (jhc (a] bsdi.com)
   1690 
   1691 
   1692 v3.1a1 Wed May  3 19:21:11 PDT 1995
   1693 
   1694 - Include time.h when SVR4 is defined to avoid problems under Solaris
   1695   2.3.
   1696 
   1697 - Fix etheraddr_string() in the ETHER_SERVICE to return the saved
   1698   strings, not the local buffer. Thanks to Stefan Petri
   1699   (petri (a] ibr.cs.tu-bs.de).
   1700 
   1701 - Detect when pcap raises the snaplen (e.g. with snit). Print a warning
   1702   that the selected value was not used. Thanks to Pascal Hennequin
   1703   (Pascal.Hennequin (a] hugo.int-evry.fr).
   1704 
   1705 - Add a truncated packet test to print-nfs.c. Thanks to Pascal Hennequin.
   1706 
   1707 - BYTEORDER -> BYTE_ORDER Thanks to Terry Kennedy (terry (a] spcvxa.spc.edu).
   1708 
   1709 v3.0.3 Sun Oct  1 18:35:00 GMT 1995
   1710 
   1711 - Although there never was a 3.0.3 release, the linux boys cleverly
   1712   "released" one in late 1995.
   1713 
   1714 v3.0.2 Thu Apr 20 21:28:16 PDT 1995
   1715 
   1716 - Change configuration to not use gcc v2 flags with gcc v1.
   1717 
   1718 - Redo gmt2local() so that it works under BSDI (which seems to return
   1719   an empty timezone struct from gettimeofday()). Based on report from
   1720   Terry Kennedy (terry (a] spcvxa.spc.edu).
   1721 
   1722 - Change configure to recognize IP[0-9]* as "mips" SGI hardware. Based
   1723   on report from Mark Andrews (mandrews (a] alias.com).
   1724 
   1725 - Don't pass cc flags to gcc. Resulted from a bug report from Rainer
   1726   Orth (ro (a] techfak.uni-bielefeld.de).
   1727 
   1728 - Fixed printout of connection id for uncompressed tcp slip packets.
   1729   Resulted from a bug report from Richard Stevens (rstevens (a] noao.edu).
   1730 
   1731 - Hack around deficiency in Ultrix's make.
   1732 
   1733 - Add ETHERTYPE_TRAIL define which is missing from irix5.
   1734 
   1735 v3.0.1 Wed Aug 31 22:42:26 PDT 1994
   1736 
   1737 - Fix problems with gcc2 vs. malloc() and read() prototypes under SunOS 4.
   1738 
   1739 v3.0 Mon Jun 20 19:23:27 PDT 1994
   1740 
   1741 - Added support for printing tcp option timestamps thanks to
   1742   Mark Andrews (mandrews (a] alias.com).
   1743 
   1744 - Reorganize protocol dumpers to take const pointers to packets so they
   1745   never change the contents (i.e., they used to do endian conversions
   1746   in place).  Previously, whenever more than one pass was taken over
   1747   the packet, the packet contents would be dumped incorrectly (i.e.,
   1748   the output form -x would be wrong on little endian machines because
   1749   the protocol dumpers would modify the data).  Thanks to Charles Hannum
   1750   (mycroft (a] gnu.ai.mit.edu) for reporting this problem.
   1751 
   1752 - Added support for decnet protocol dumping thanks to Jeff Mogul
   1753   (mogul (a] pa.dec.com).
   1754 
   1755 - Fix bug that caused length of packet to be incorrectly printed
   1756   (off by ether header size) for unknown ethernet types thanks
   1757   to Greg Miller (gmiller (a] kayak.mitre.org).
   1758 
   1759 - Added support for IPX protocol dumping thanks to Brad Parker
   1760   (brad (a] fcr.com).
   1761 
   1762 - Added check to verify IP header checksum under -v thanks to
   1763   Brad Parker (brad (a] fcr.com).
   1764 
   1765 - Move packet capture code to new libpcap library (which is
   1766   packaged separately).
   1767 
   1768 - Prototype everything and assume an ansi compiler.
   1769 
   1770 - print-arp.c: Print hardware ethernet addresses if they're not
   1771   what we expect.
   1772 
   1773 - print-bootp.c: Decode the cmu vendor field. Add RFC1497 tags.
   1774   Many helpful suggestions from Gordon Ross (gwr (a] jericho.mc.com).
   1775 
   1776 - print-fddi.c: Improvements. Thanks to Jeffrey Mogul
   1777   (mogul (a] pa.dec.com).
   1778 
   1779 - print-icmp.c: Byte swap netmask before printing. Thanks to
   1780   Richard Stevens (rstevens (a] noao.edu). Print icmp type when unknown.
   1781 
   1782 - print-ip.c: Print the inner ip datagram of ip-in-ip encapsulated packets.
   1783   By default, only the inner packet is dumped, appended with the token
   1784   "(encap)".  Under -v, both the inner and output packets are dumped
   1785   (on the same line).  Note that the filter applies to the original packet,
   1786   not the encapsulated packet.  So if you run tcpdump on a net with an
   1787   IP Multicast tunnel, you cannot filter out the datagrams using the
   1788   conventional syntax.  (You can filter away all the ip-in-ip traffic
   1789   with "not ip proto 4".)
   1790 
   1791 - print-nfs.c: Keep pending rpc's in circular table. Add generic
   1792   nfs header and remove os dependences. Thanks to Jeffrey Mogul.
   1793 
   1794 - print-ospf.c: Improvements. Thanks to Jeffrey Mogul.
   1795 
   1796 - tcpdump.c: Add -T flag allows interpretation of "vat", "wb", "rpc"
   1797   (sunrpc) and rtp packets. Added "inbound" and "outbound" keywords
   1798   Add && and || operators
   1799 
   1800 v2.2.1 Tue Jun 6 17:57:22 PDT 1992
   1801 
   1802 - Fix bug with -c flag.
   1803 
   1804 v2.2 Fri May 22 17:19:41 PDT 1992
   1805 
   1806 - savefile.c: Remove hack that shouldn't have been exported. Add
   1807   truncate checks.
   1808 
   1809 - Added the 'icmp' keyword.  For example, 'icmp[0] != 8 and icmp[0] != 0'
   1810   matches non-echo/reply ICMP packets.
   1811 
   1812 - Many improvements to filter code optimizer.
   1813 
   1814 - Added 'multicast' keyword and extended the 'broadcast' keyword can now be
   1815   so that protocol qualifications are allowed. For example, "ip broadcast"
   1816   and "ether multicast" are valid filters.
   1817 
   1818 - Added support for monitoring the loopback interface (i.e. 'tcpdump -i lo').
   1819   Jeffrey Honig (jch (a] MITCHELL.CIT.CORNELL.EDU) contributed the kernel
   1820   patches to netinet/if_loop.c.
   1821 
   1822 - Added support for the Ungermann-Bass Ethernet on IBM/PC-RTs running AOS.
   1823   Contact Jeffrey Honig (jch (a] MITCHELL.CIT.CORNELL.EDU) for the diffs.
   1824 
   1825 - Added EGP and OSPF printers, thanks to Jeffrey Honig.
   1826 
   1827 v2.1 Tue Jan 28 11:00:14 PST 1992
   1828 
   1829 - Internal release (never publicly exported).
   1830 
   1831 v2.0.1 Sun Jan 26 21:10:10 PDT
   1832 
   1833 - Various byte ordering fixes.
   1834 
   1835 - Add truncation checks.
   1836 
   1837 - inet.c: Support BSD style SIOCGIFCONF.
   1838 
   1839 - nametoaddr.c: Handle multi addresses for single host.
   1840 
   1841 - optimize.c: Rewritten.
   1842 
   1843 - pcap-bpf.c: don't choke when we get ptraced. only set promiscuous
   1844   for broadcast nets.
   1845 
   1846 - print-atal.c: Fix an alignment bug (thanks to
   1847   stanonik (a] nprdc.navy.mil) Add missing printf() argument.
   1848 
   1849 - print-bootp.c: First attempt at decoding the vendor buffer.
   1850 
   1851 - print-domain.c: Fix truncation checks.
   1852 
   1853 - print-icmp.c: Calculate length of packets from the ip header.
   1854 
   1855 - print-ip.c: Print frag id in decimal (so it's easier to match up
   1856   with non-frags). Add support for ospf, egp and igmp.
   1857 
   1858 - print-nfs.c: Lots of changes.
   1859 
   1860 - print-ntp.c: Make some verbose output depend on -v.
   1861 
   1862 - print-snmp.c: New version from John LoVerso.
   1863 
   1864 - print-tcp.c: Print rfc1072 tcp options.
   1865 
   1866 - tcpdump.c: Print "0x" prefix for %x formats. Always print 6 digits
   1867   (microseconds) worth of precision. Fix uid bugs.
   1868 
   1869 - A packet dumper has been added (thanks to Jeff Mogul of DECWRL).
   1870   With this option, you can create an architecture independent binary
   1871   trace file in real time, without the overhead of the packet printer.
   1872   At a later time, the packets can be filtered (again) and printed.
   1873 
   1874 - BSD is supported.  You must have BPF in your kernel.
   1875   Since the filtering is now done in the kernel, fewer packets are
   1876   dropped.  In fact, with BPF and the packet dumper option, a measly
   1877   Sun 3/50 can keep up with a busy network.
   1878 
   1879 - Compressed SLIP packets can now be dumped, provided you use our
   1880   SLIP software and BPF.  These packets are dumped as any other IP
   1881   packet; the compressed headers are dumped with the '-e' option.
   1882 
   1883 - Machines with little-endian byte ordering are supported (thanks to
   1884   Jeff Mogul).
   1885 
   1886 - Ultrix 4.0 is supported (also thanks to Jeff Mogul).
   1887 
   1888 - IBM RT and Stanford Enetfilter support has been added by
   1889   Rayan Zachariassen <rayan (a] canet.ca>.  tcpdump has been tested under
   1890   both the vanilla Enetfilter interface, and the extended interface
   1891   (#ifdef'd by IBMRTPC) present in the MERIT version of the Enetfilter.
   1892 
   1893 - TFTP packets are now printed (requests only).
   1894 
   1895 - BOOTP packets are now printed.
   1896 
   1897 - SNMP packets are now printed. (thanks to John LoVerso of Xylogics).
   1898 
   1899 - Sparc architectures, including the Sparcstation-1, are now
   1900   supported thanks to Steve McCanne and Craig Leres.
   1901 
   1902 - SunOS 4 is now supported thanks to Micky Liu of Columbia
   1903   University (micky (a] cunixc.cc.columbia.edu).
   1904 
   1905 - IP options are now printed.
   1906 
   1907 - RIP packets are now printed.
   1908 
   1909 - There's a -v flag that prints out more information than the
   1910   default (e.g., it will enable printing of IP ttl, tos and id)
   1911   and -q flag that prints out less (e.g., it will disable
   1912   interpretation of AppleTalk-in-UDP).
   1913 
   1914 - The grammar has undergone substantial changes (if you have an
   1915   earlier version of tcpdump, you should re-read the manual
   1916   entry).
   1917 
   1918   The most useful change is the addition of an expression
   1919   syntax that lets you filter on arbitrary fields or values in the
   1920   packet.  E.g., "ip[0] > 0x45" would print only packets with IP
   1921   options, "tcp[13] & 3 != 0" would print only TCP SYN and FIN
   1922   packets.
   1923 
   1924   The most painful change is that concatenation no longer means
   1925   "and" -- e.g., you have to say "host foo and port bar" instead
   1926   of "host foo port bar".  The up side to this down is that
   1927   repeated qualifiers can be omitted, making most filter
   1928   expressions shorter.  E.g., you can now say "ip host foo and
   1929   (bar or baz)" to look at ip traffic between hosts foo and bar or
   1930   between hosts foo and baz.  [The old way of saying this was "ip
   1931   host foo and (ip host bar or ip host baz)".]
   1932 
   1933 v2.0 Sun Jan 13 12:20:40 PST 1991
   1934 
   1935 - Initial public release.
   1936