* Extensively reworked Doxygen documentation, now available at
* Removed some declarations from librsync.h that were unimplemented or no
longer ever useful: `rs_work_options`, `rs_accum_value`.
Remove declaration of unimplemented `rs_mdfour_file()`.
* Remove shipped `snprintf` code: no longer acutally linked after changing to
CMake, and since it's part of C99 it should be widely available.
* Document that Ninja (http://ninja-build.org/) is supported under CMake.
It's a bit faster and nicer than Make.
* `make check` (or `ninja check` etc) will now build and run the tests.
Previously due to a CMake limitation, `make test` would only run existing
tests and could fail if they weren't built.
(Martin Pool, https://github.com/librsync/librsync/issues/49)
* Added cmake options to exclude rdiff target and compression from build.
See install documentation for details.
Thanks to Michele Bertasi.
* `popt` is only needed when `rdiff` is being built. (gulikoza)
* Use `fseeko64` on mingw. (gulikoza)
* `rdiff -s` option now shows bytes read/written and speed. (gulikoza)
Note: despite the major version bump, this release has few changes and should
be binary and API compatible with the previous version.
* Bump librsync version number to 2.0, to match the library
(Martin Pool, https://github.com/librsync/librsync/issues/48)
## librsync 1.0.1 (2015-11-21)
* Better performance on large files. (VictorDenisov)
* Add comment on usage of rs_build_hash_table(), and assert correct use.
Callers must call rs_build_hash_table() after loading the signature,
and before calling rs_delta_begin().
* Switch from autoconf to CMake.
Thanks to Adam Schubert.
## librsync 1.0.0 (2015-01-23)
* SECURITY: CVE-2014-8242: librsync previously used a truncated MD4
"strong" check sum to match blocks. However, MD4 is not cryptographically
strong. It's possible that an attacker who can control the contents of one
part of a file could use it to control other regions of the file, if it's
transferred using librsync/rdiff. For example this might occur in a
database, mailbox, or VM image containing some attacker-controlled data.
To mitigate this issue, signatures will by default be computed with a
256-bit BLAKE2 hash. Old versions of librsync will complain about a
bad magic number when given these signature files.
Backward compatibility can be obtained using the new
`rdiff sig --hash=md4`
option or through specifying the "signature magic" in the API, but
this should not be used when either the old or new file contain
Deltas generated from those signatures will also use BLAKE2 during
generation, but produce output that can be read by old versions.
Thanks to Michael Samuel <miknet.net> for reporting this and offering an
* Various build fixes, thanks Timothy Gu.
* Improved rdiff man page from Debian.
* Improved librsync.spec file for building RPMs.
* Fixed bug #1110812 'internal error: job made no progress'; on large
* Moved hosting to https://github.com/librsync/librsync/
* Travis-CI.org integration test at https://travis-ci.org/librsync/librsync/
* You can set `$LIBTOOLIZE` before running `autogen.sh`, for example on
OS X Homebrew where it is called `glibtoolize`.
## 0.9.7 (released 2004-10-10)
* Yet more large file support fixes.
* `extern "C"` guards in librsync.h to let it be used from C++.
* Removed Debian files from dist tarball.
* Changed rdiff to an installed program on "make install".
* Refactored delta calculation code to be cleaner and faster.
* \#879763: Fixed mdfour to work on little-endian machines which don't
like unaligned word access. This should make librsync work on
pa-risc, and it makes it slightly faster on ia64.
* \#1022764: Fix corrupted encoding of some COPY commands in large
* \#1024881: Print long integers directly, rather than via casts to
* Fix printf formats for size_t: both the format and the argument
should be cast to long.
* Large file support fixes.
* [v]snprintf or _[v]snprintf autoconf replacement function fix.
* Changed installed include file from rsync.h to librsync.h.
* Migration to sourceforge for hosting.
* Rollsum bugfix that produces much smaller deltas.
* Memory leaks bugfix patches.
* mdfour bigendian and >512M bugfix, plus optimisations patch.
* autoconf/automake updates and cleanups for autoconf 2.53.
* Windows compilation patch, heavily modified.
* MacOSX compilation patch, modified to autoconf vararg macro fix.
* Debian package build scripts patch.
* Bugfix patch from Shirish Hemant Phatak
## 0.9.4: (library 1.1.0)
* No (intentional) changes to binary API.
* Big speed improvements in MD4 routines and generation of weak
* Suggestions to build on Solaris 2.6 from Alberto Accomazzi
* Add rs_job_drive, a generic mechanism for turning the library into
blocking mode. rs_whole_run now builds on top of this. The
filebuf interface has changed a little to accomodate it.
* Generating and loading signatures now generates statistics.
* I suspect there may be a bug in rolling checksums, but it probably
only causes inefficiency and not corruption.
* Portability fixes for alphaev67-dec-osf5.1; at the moment builds
but does not work because librsync tries to do unaligned accesses.
* Works on sparc64-unknown-linux-gnu (Debian/2.2)
* Improve delta algorithm so that deltas are actually
delta-compressed, rather than faked.
* Rename the library to `librsync'.
* Include the popt library, and use it to build rdiff if the library
is not present on the host.
* Add file(1) magic for rdiff.
* Add more to the manual pages.
* It's no longer necessary to call rs_buffers_init on a stream before
starting to use it: all the internal data is kept in the job, not
* Rename rs_stream_t to rs_buffers_t, a more obvious name. Pass the
buffers to every rs_job_iter() call, rather than setting it at
startup. Similarly for all the _begin() functions.
* rs_job_new also takes the initial state function.
* Return RS_PARAM_ERROR when library is misused.
* Redesign API to be more like zlib/bzlib.
* Put all command-line functions into a single rdiff(1) program.
* New magic number `rs6'
* Change to using popt for command line parsing.
* Use Doxygen for API documentation.
* Changes stats string format.
* Slightly improved test cases
* Don't install debugging tools into /usr/local/bin; leave them in
the source directory.
* Fix libhsync to build on (sgi-mips, IRIX64, gcc, GNU Make)
* Include README.CVS in tarball
* Back out of using libtool and shared libraries, as it is
unnecessary at this stage, complicates installation and slows down
* Use mapptr when reading data to decode, so that decoding should
have less latency and be more reliable.
* Cope better on systems that are missing functions like snprintf.
* Put genuine search encoding back into the nad algorithm, and
further clean up the nad code. Literals are now sent out using a
literal buffer integrated with the input mapptr so that data is not
copied. Checksums are still calculated from scratch each time
rather than by rolling -- this is very slow but simple.
* Reshuffle test cases so that they use files generated by hsmapread,
rather than the source directory. This makes the tests quicker and
more reproducible, hopefully without losing coverage. Further
develop the test driver framework.
* Add hsdumpsums debugging tool.
* Hex strings (eg strong checksums) are broken up by underscores for
* Stats now go to the log rather than stdout.
* mapptr acts properly when we're skipping/rewinding to data already
present in the buffer -- it does a copy if required, but not
* Improved mapptr input code
* Turn on more warnings if using gcc
* Improvements to mapptr to make it work better for network IO.
* Debug trace code is compiled in unless turned off in ./configure
(although most programs will not write it out unless asked.)
* Add libhsyncinfo program to show compiled-in settings and version.
* Add test cases that run across localhost TCP sockets.
* Improved build code; should now build easily from CVS through
* Improved trace code.
* Clean up to build on sparc-sun-solaris2.8, and in the process clean
up the handling of bytes vs chars, and of building without gcc
* Reverse build scripts so that driver.sh calls the particular
* Use mapptr for input.
* Implement a new structure for encoding in nad.c. It doesn't
encode at the moment, but it's much more maintainable.
* More regression cases.
* Clean up build process.
* Rewrite hs_inbuf and hs_encode to make them simpler and more
* Test cases for input handling.
* Use the map_ptr idea for input from both streams and files.
* automake/autoconf now works cleanly when the build directory is
different to the source directory.
* --enable-ccmalloc works again.
* A much better regression suite.
* CHECKSUM token includes the file's checksum up to the current
location, to aid in self-testing.
* Various bug fixes, particularly to do with short IO returns.