- update to 20240229:
  * bugfix: correct SCAMPER_DL_IS_ICMP_TIME_REPLY macro so that scamper
    does not ignore ICMP replies quoting TCP/UDP packets for 1/256
    source port values.
  * bugfixes for -O icmp-rxerr: handle EPOLLERR on linux, try using
    IPV6_RECVHOPLIMIT before IPV6_HOPLIMIT for IPv6 udp probing.
  * bugfix: fix possible assertions in dealias, trace, and tracelb code.
  * ping: count UDP replies as from the target
  * trace: correct datalink timestamp adjustments
  * add more specific error messages when a scamper command is not
    accepted, return them over control socket or terminal, as appropriate.
  * scamper_fd_t: refactor fd_addr, fd_sport, fd_dl, fd_ifindex
  * scamper_fd_t: decouple udp4raw/udp4dg from each other.  use udp4dg
    and udp6 sockets in udpprobe primitive, rather than have each
    udpprobe task create its own socket.
  * scamper_fd_t: add methods that return an available open socket for
    probing a given destination without blocking if another task is
    probing the same destination.  use this with ping -F 0 and trace -s 0,
    instead of generating random port values, so that scamper opens
    the minimum number of file descriptors.
  * ping and trace: have -O dl mean to capture transmit and receive
    timestamps from a datalink interface.  add -O raw option so that
    IPv4 TCP probes can be transmitted over a raw socket, to allow transmitted
    TCP packets to be observed on the datalink interface.
  * add memory-mapped ring buffer support (PACKET_RX_RING) for receiving
    packets on datalink sockets on Linux.  enable at scamper runtime
    with -O ring.  contributed by Alistair King.
  ## python module:
  * generate module .c with Cython 0.29.37, to enable module to compile
    with Python 3.11.

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- update to version 20240117:
 - scamper:
  - fix crashes if a task is provided an apparent response, but the task
 -   has not yet sent a packet in ping, sting, tbit, trace, tracelb.
  - find and fix memory leaks in measurement command parsing code via
 -   fuzzing.
  - add udpprobe, http, dealias -m midarest, and dealias -m midardisc methods.
 -   udpprobe and http do not currently have json output methods.
  - remove -d dport, -s sport, and -t ttl dealias parameters.  these
 -   were only valid for mercator, and can be specified in a probedef instead.
  - record size of responses for dealias probes.
  - modify all commands to be able to take human-friendly wait parameters --
 -   e.g. trace -W 0.5s or trace -W 500ms instead of trace -W 50000.
  - support transmitting raw packets on linux ppp interfaces
  - add -b payload-size parameter to ping
 - python interface:
  - add python interface to most of scamper.  building this module requires
 -   cython < 3.0.  to build, use something like:
 -   PYTHON=/path/to/python CYTHON=/path/to/cython ./configure --with-python
  - the documentation for this interface is available at
 -   https://www.caida.org/catalog/software/scamper/python/
  - the ubuntu PPA provides python3-scamper, and the FreeBSD port should
 -   hopefully provide py-scamper shortly.  these sources may be useful
 -   for getting the module packaged for other operating systems.
 -   https://launchpad.net/~matthewluckie/+archive/ubuntu/scamper
 - libscamperfile and libscamperctrl:
  - improvements, bump versions
 - tests:
  - many new unit tests and fuzzing cradles for scamper components
 - sc_pinger:
  - add -l limit and -M move-dir options
 - sc_remoted:
  - no need to link against libscamperfile, remove dependency
 - sc_attach, sc_filterpolicy, sc_prefixscan, sc_wartsfix:
  - compile / link on windows.

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- update to 20230614d (bsc#1217032):
  * fix buffer overflow when parsing TCP packets where the sender
    includes a TCP fast open cookie larger than 16 bytes

    sc_hoiho man page

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- update to version 20230614b:
 - scamper:
  * fix handling of EPOLLHUP on client disconnection -- Linux-specific
    (scamper -U /path/to/socket)
 - libscamperctrl:
  * fix handling of disconnected instances

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- update to version 20230614a
 * configure:
  * better tests for zlib, libbz2, and liblzma that check for both
    libraries and headers.
  * change --with-sc_uptime, --with-sc_hoiho, and --with-tests to be
    --enable-sc_uptime, --enable-sc_hoiho, and --enable-tests
  * disable maintainer mode, pass foreign to AM_INIT_AUTOMAKE
 * scamper:
  * remove reading regular files from poll/select/epoll/kqueue path,
    which fixes reading regular input files (-f option to scamper) using
    epoll or kqueue
  * fix reading stdin as input (-f option to scamper) when using
    epoll (catch EPOLLHUP)
  * add DNS server to host signature, add host path for scamper_task_find
  * rework scamper_osinfo to work with malformed release names (uname -r)
  * dealias: do not crash on malformed prefixscan and bump commands
  * dealias: fix memory leak of probedefs on malformed commands
  * sting: fix memory leak of recorded packets
  * remove tsps input method (-O tsps option to scamper)
  * update manual page
 * libscamperctrl:
  * link against list.o and splaytree.o so that the library is self-contained
  * fix memory leak when task is not accepted
  * API improvements
 * libscamperfile:
  * fix memory leak when reading SOA/MX from warts file
  * fix memory leak when reading PMTUD traceroute structures from warts file
  * sting: fix memory leak of recorded packets
 * sc_analysis_dump, sc_warts2pcap, sc_wartscat, sc_wartsfilter:
  * link against list.o/utils.o so that these utilities are not reliant on
    those symbols being exported from libscamperfile
 * sc_prefixprober:
  * allow compression type to be specified using -O
  * free scamper_addr_t as each are removed from the list to probe
 * sc_remoted:
  * catch EPOLLHUP with epoll
 * sc_warts2text:
  * fix memory leaks
 * sc_wartsdump:
  * fix memory leaks
  * link against utils.o so that sc_wartsdump is not reliant on those
    symbols being exported from libscamperfile

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- Update to version 20230224:
 - scamper:
  - allow multiple parallel measurements to the same destination,
 -   provided the measurements have probe signatures that scamper can
 -   distinguish.
  - return the associated task ID with each DATA blob in control socket.
 -   this task ID matches the ID returned in an OK when scamper accepted
 -   the task.
  - in ping, only compute delay statistics on responses from destination.
  - in ping, allow timeout to be expressed in fractions of a second.
 - libscamperfile:
  - support reading gz-compressed warts files.
 - libscamperctrl:
  - add libscamperctrl, a library to interact with a collection of
 -   scamper instances.
  - modify sc_ally, sc_filterpolicy, sc_prefixscan, sc_speedtrap, and
 -   sc_pinger to use this library.
  - this library is likely to evolve.  current behaviour is documented
 -   in libscamperctrl manual page.
 - misc:
  - improve sc_wartsfilter manual page with examples.
  - add remote control socket support to sc_pinger.
  - fix kqueue/epoll loop in sc_remoted.
  - consistently use size_t throughout when counting number of items.
  - build without warnings using -Wextra -Wno-unused-parameter.
  - improvements through adding function attributes to printf-like
 -   functions.
  - deorbit some unused functions from utils.c.

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update to version 20211026

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