3 # NEWS for rsync 3.2.2 (UNRELEASED)
5 Protocol: 31 (unchanged)
7 ## Changes since 3.2.1:
11 - Avoid a crash when a daemon module enables `transfer logging` without
12 setting a `log format` value.
14 - Fixed installing rsync-ssl script from an alternate build dir.
16 - Fixed the updating of configure.sh from an alternate build dir.
18 - Apple requires the asm function name to begin with an underscore.
20 - Avoid a test failure in the daemon test when --atimes is disabled.
24 - Allow the server side to restrict checksum & compression choices via the
25 same environment variables the client uses. The env vars can be divided
26 into "client list & server list" by the "`&`" char or the same list can
29 - Simplify how the negotiation environment variables apply when interacting
30 with an older rsync version and when they contain only invalid names.
32 - Do not allow a negotiated checksum or compression choice of "none" unless
33 the user authorized it via an environment variable or command-line option.
35 - Added the `--max-alloc=SIZE` option to be able to override the memory
36 allocator's sanity-check limit. It defaults to 1G (as before) but the error
37 message when exceeding it specifically mentions the new option so that you
38 can differentiate an out-of-memory error from a failure of this limit. It
39 also allows you to specify the value via the RSYNC_MAX_ALLOC environment
42 - The default systemd config was changed to remove the `ProtectHome=on`
43 setting since rsync is often used to serve files in /home and this seemed a
44 bit too strict. Feel free to use `systemctl edit rsync` to add that
45 restriction to your own setup, if you like.
47 - The memory allocation functions now automatically check for a failure and
48 die when out of memory. This eliminated some caller-side check-and-die
49 code and added some missing sanity-checking of allocations.
51 - Put optimizations into their own list in the `--version` output.
53 - Improved the man page a bit more.
55 ### PACKAGING RELATED:
57 - Prepared the checksum code for an upcoming xxHash release that provides new
58 XXH3 (64-bit) & XXH128 (128-bit) checksum routines. These will not be
59 compiled into rsync until the xxhash v0.8.0 include files are installed on
60 the build host, and that release is a few weeks away at the time this was
61 written. So, if it's now the future and you have packaged and installed
62 xxhash-0.8.0-devel, a fresh rebuild of rsync 3.2.2 will give you the new
63 checksum routines. Just make sure that the new rsync package depends on
66 ### DEVELOPER RELATED:
68 - Moved the version number out of configure.ac into its own version.h file so
69 that we don't need to reconfigure just because the version number changes.
71 - Moved the daemon parameter list into daemon-parm.txt so that an awk script
72 can create the interrelated structs and accessors that loadparm.c needs.
74 ------------------------------------------------------------------------------
77 # NEWS for rsync 3.2.1 (22 Jun 2020)
79 Protocol: 31 (unchanged)
81 ## Changes since 3.2.0:
85 - Fixed a potential build issue with the MD5 assembly-language code by
86 removing some non-portable directives.
88 - Use the preprocessor with the asm file to ensure that if the code is
89 unneeded, it doesn't get built.
91 - Avoid the stack getting set to executable when including the asm code.
93 - Some improvements in the SIMD configure testing to try to avoid build
94 issues, such as avoiding a clang++ core dump when `-g` is combined with
95 `-O2`. Note that clang++ is quite buggy in this area, and it does still
96 crash for some folks, so just use `--disable-simd` if you need to avoid
97 their buggy compiler (since the configure test is apparently not finding
98 all the compilers that will to crash and burn).
100 - Fixed an issue in the md2man script when building from an alternate dir.
102 - Disable `--atimes` on macOS (it apparently just ignores the atime change).
106 - The default systemd config was made a bit stricter by default. For
107 instance, `ProtectHome=on` was added. You can override this using the
108 standard `systemctl edit rsync` and add a line to turn that off under a
111 - The use of `--backup-dir=STR` now implies `--backup`.
113 - Added `--zl=NUM` as a short-hand for `--compress-level=NUM`.
115 - Added `--early-input=FILE` option that allows the client to send some
116 data to a daemon's (optional) "early exec" script on its stdin.
118 - Mention atimes in the capabilities list that `--version` outputs.
120 - Mention either "default protect-args" or "optional protect-args" in the
121 `--version` capabilities depending on how rsync was configured.
123 - Some info on optimizations is now elided from the `--version` capabilities
124 since they aren't really user-facing capabilities. You can still see the
125 info (plus the status of a couple extra optimizations) by repeating the
126 `--version` option (e.g. `-VV`).
128 - Updated various URLs to be https instead of http.
130 - Some documentation improvements.
132 ### PACKAGING RELATED:
134 - If you had to use `--disable-simd` for 3.2.0, you might want to try removing
135 that and see if it will succeed or auto-disable. Some buggy clang++
136 compilers are still not auto disabled, though.
138 - The MD5 asm code is now under its own configure flag (not shared with the
139 SIMD setting), so if you have any issues compiling it, re-run configure with
142 - Merged the OLDNEWS.md file into NEWS.md.
144 ------------------------------------------------------------------------------
147 # NEWS for rsync 3.2.0 (19 Jun 2020)
149 Protocol: 31 (unchanged)
151 ## Changes since 3.1.3:
155 - Avoid a potential out-of-bounds read in daemon mode if argc can be made to
158 - Fix the default list of skip-compress files for non-daemon transfers.
160 - Fix xattr filter rules losing an 'x' attribute in a non-local transfer.
162 - Avoid an error when a check for a potential fuzzy file happens to reference
165 - Make the atomic-rsync helper script have a more consistent error-exit.
167 - Make sure that a signal handler's use of exit_cleanup() calls `_exit()`
170 - Various zlib fixes, including security fixes for CVE-2016-9843,
171 CVE-2016-9842, CVE-2016-9841, and CVE-2016-9840.
173 - Fixed an issue with `--remove-source-files` not removing a source symlink
174 when combined with `--copy-links`.
176 - Fixed a bug where the daemon would fail to write early fatal error messages
177 to the client, such as refused or unknown command-line options.
179 - Fixed the block-size validation logic when dealing with older protocols.
181 - Some rrsync fixes and enhancements to handle the latest options.
183 - Fixed a problem with the `--link-dest`|`--copy-dest` code when `--xattrs`
184 was specified along with multiple alternate-destination directories (it
185 could possibly choose a bad file match while trying to find a better xattr
188 - Fixed a couple bugs in the handling of files with the `--sparse` option.
190 - Fixed a bug in the writing of the batch.sh file (w/`--write-batch`) when the
191 source & destination args were not last on the command-line.
193 - Avoid a hang when an overabundance of messages clogs up all the I/O buffers.
195 - Fixed a mismatch in the RSYNC_PID values put into the environment of
196 `pre-xfer exec` and a `post-xfer exec`.
198 - Fixed a crash in the `--iconv` code.
200 - Fixed a rare crash in the popt_unalias() code.
204 - Various checksum enhancements, including the optional use of openssl's MD4 &
205 MD5 checksum algorithms, some x86-64 optimizations for the rolling checksum,
206 some x86-64 optimizations for the (non-openssl) MD5 checksum, the addition
207 of xxHash checksum support, and a negotiation heuristic that ensures that it
208 is easier to add new checksum algorithms in the future. The environment
209 variable `RSYNC_CHECKSUM_LIST` can be used to customize the preference order
210 of the negotiation, or use `--checksum-choice` (`--cc`) to force a choice.
212 - Various compression enhancements, including the addition of zstd and lz4
213 compression algorithms and a negotiation heuristic that picks the best
214 compression option supported by both sides. The environment variable
215 `RSYNC_COMPRESS_LIST` can be used to customize the preference order of the
216 negotiation, or use `--compress-choice` (`--zc`) to force a choice.
218 - Added a `--debug=NSTR` option that outputs details of the new negotiation
219 strings (for checksums and compression). The first level just outputs the
220 result of each negotiation on the client, level 2 outputs the values of the
221 strings that were sent to and received from the server, and level 3 outputs
222 all those values on the server side too (when the server was given the debug
225 - The `--debug=OPTS` command-line option is no longer auto-forwarded to the
226 remote rsync which allows for the client and server to have different levels
227 of debug specified. This also allows for newer debug options to be
228 specified, such as using `--debug=NSTR` to see the negotiated hash result,
229 without having the command fail if the server version is too old to handle
230 that debug item. Use `-M--debug=OPTS` to send the options to the remote side.
232 - Added the `--atimes` option based on the long-standing patch (just with some
233 fixes that the patch has been needing).
235 - Added `--open-noatime` option to open files using `O_NOATIME`.
237 - Added the `--write-devices` option based on the long-standing patch.
239 - Added openssl & preliminary gnutls support to the rsync-ssl script, which is
240 now installed by default. This was unified with the old stunnel-rsync
241 helper script to simplify packaging. Note that the script accepts the use
242 of `--type=gnutls` for gnutls testing, but does not look for gnutls-cli on
243 the path yet. The use of `--type=gnutls` will not work right until
244 gnutls-cli no longer drops data.
246 - Rsync was enhanced to set the `RSYNC_PORT` environment variable when running
247 a daemon-over-rsh script. Its value is the user-specified port number (set
248 via `--port` or an rsync:// URL) or 0 if the user didn't override the port.
250 - Added the `proxy protocol` daemon parameter that allows your rsyncd to know
251 the real remote IP when it is setup behind a proxy.
253 - Added negated matching to the daemon's `refuse options` setting by using
254 match strings that start with a `!` (such as `!compress*`). This lets you
255 refuse all options except for a particular approved list, for example. It
256 also lets rsync refuse certain options by default (such as `write-devices`)
257 while allowing the config to override that, as desired.
259 - Added the `early exec` daemon parameter that runs a script before the
260 transfer parameters are known, allowing some early setup based on module
263 - Added status output in response to a signal (via both SIGINFO & SIGVTALRM).
265 - Added `--copy-as=USER` option to give some extra security to root-run rsync
266 commands into/from untrusted directories (such as backups and restores).
268 - When resuming the transfer of a file in the `--partial-dir`, rsync will now
269 update that partial file in-place instead of creating yet another tmp file
270 copy. This requires both sender & receiver to be at least v3.2.0.
272 - Added support for `RSYNC_SHELL` & `RSYNC_NO_XFER_EXEC` environment variables
273 that affect the early, pre-xfer, and post-xfer exec rsync daemon parameters.
275 - Optimize the `--fuzzy --fuzzy` heuristic to avoid the fuzzy directory scan
276 until all other basis-file options are exhausted (such as `--link-dest`).
278 - Have the daemon log include the normal-exit sent/received stats when the
279 transfer exited with an error when possible (i.e. if it is the sender).
281 - The daemon now locks its pid file (when configured to use one) so that it
282 will not fail to start when the file exists but no daemon is running.
284 - Various man page improvements, including some html representations (that
285 aren't installed by default).
287 - Made `-V` the short option for `--version` and improved its information.
289 - Pass the `-4` or `-6` option to the ssh command, making it easier to type
290 than `--rsh='ssh -4'` (or the `-6` equivalent).
292 - Added example config for rsyncd SSL proxy configs to rsyncd.conf.
294 - More errors messages now mention if the error is coming from the sender or
297 ### PACKAGING RELATED:
299 - Add installed binary: /usr/bin/rsync-ssl
301 - Add installed man page: /usr/man/man1/rsync-ssl.1
303 - Tweak auxiliary doc file names, such as: README.md, INSTALL.md, & NEWS.md.
305 - The rsync-ssl script wants to run openssl or stunnel4, so consider adding a
306 dependency for one of those options (though it's probably fine to just let
307 it complain about being unable to find the program and let the user decide
308 if they want to install one or the other).
310 - If you packaged rsync + rsync-ssl + rsync-ssl-daemon as separate packages,
311 the rsync-ssl package is now gone (rsync-ssl should be considered to be
312 mainstream now that Samba requires SSL for its rsync daemon).
314 - Add _build_ dependency for liblz4-dev, libxxhash-dev, libzstd-dev, and
315 libssl-dev. These development libraries will give rsync extra compression
316 algorithms, extra checksum algorithms, and allow use of openssl's crypto
317 lib for (potentially) faster MD4/MD5 checksums.
319 - Add _build_ dependency for g++ or clang++ on x86_64 systems to enable the
320 SIMD checksum optimizations.
322 - Add _build_ dependency for _either_ python3-cmarkcfm or python3-commonmark
323 to allow for patching of man pages or building a git release. This is not
324 required for a release-tar build, since it comes with pre-built man pages.
325 Note that cmarkcfm is faster than commonmark, but they generate the same
326 data. The commonmark dependency is easiest to install since it's native
327 python, and can even be installed via `pip3 install --user commonmark` if
328 you want to just install it for the build user.
330 - Remove yodl _build_ dependency (if it was even listed before).
332 ### DEVELOPER RELATED:
334 - Silenced some annoying warnings about major() & minor() by improving an
335 autoconf include-file check.
337 - Converted the man pages from yodl to markdown. They are now processed via a
338 simple python3 script using the cmarkgfm **or** commonmark library. This
339 should make it easier to package rsync, since yodl has gotten obscure.
341 - Improved some configure checks to work better with strict C99 compilers.
343 - Some perl building/packaging scripts were recoded into awk and python3.
345 - Some defines in byteorder.h were changed into static inline functions that
346 will help to ensure that the args don't get evaluated multiple times on
347 "careful alignment" hosts.
349 - Some code typos were fixed (as pointed out by a Fossies run).
351 ------------------------------------------------------------------------------
354 # NEWS for rsync 3.1.3 (28 Jan 2018)
356 Protocol: 31 (unchanged)
358 ## Changes since 3.1.2:
362 - Fixed a buffer overrun in the protocol's handling of xattr names and ensure
363 that the received name is null terminated.
365 - Fix an issue with `--protect-args` where the user could specify the arg in the
366 protected-arg list and short-circuit some of the arg-sanitizing code.
370 - Don't output about a new backup dir without appropriate info verbosity.
372 - Fixed some issues with the sort functions in support/rsyncstats script.
374 - Added a way to specify daemon config lists (e.g. users, groups, etc) that
375 contain spaces (see `auth users` in the latest rsyncd.conf manpage).
377 - If a backup fails (e.g. full disk) rsync exits with an error.
379 - Fixed a problem with a doubled `--fuzzy` option combined with `--link-dest`.
381 - Avoid invalid output in the summary if either the start or end time had an
384 - We don't allow a popt alias to affect the `--daemon` or `--server` options.
386 - Fix daemon exclude code to disallow attribute changes in addition to
387 disallowing transfers.
389 - Don't force nanoseconds to match if a non-transferred, non-checksummed file
390 only passed the quick-check w/o comparing nanosecods.
394 - Added the ability for rsync to compare nanosecond times in its file-check
395 comparisons, and added support nanosecond times on Mac OS X.
397 - Added a short-option (`-@`) for `--modify-window`.
399 - Added the `--checksum-choice=NAME[,NAME]` option to choose the checksum
402 - Added hashing of xattr names (with using `-X`) to improve the handling of
403 files with large numbers of xattrs.
405 - Added a way to filter xattr names using include/exclude/filter rules (see
406 the `--xattrs` option in the manpage for details).
408 - Added `daemon chroot|uid|gid` to the daemon config (in addition to the old
409 chroot|uid|gid settings that affect the daemon's transfer process).
411 - Added `syslog tag` to the daemon configuration.
413 - Some manpage improvements.
415 ### DEVELOPER RELATED:
417 - Tweak the `make` output when yodl isn't around to create the man pages.
419 - Changed an obsolete autoconf compile macro.
421 - Support newer yodl versions when converting man pages.
423 ------------------------------------------------------------------------------
426 # NEWS for rsync 3.1.2 (21 Dec 2015)
428 Protocol: 31 (unchanged)
430 ## Changes since 3.1.1:
434 - Make sure that all transferred files use only path names from inside the
435 transfer. This makes it impossible for a malicious sender to try to make the
436 receiver use an unsafe destination path for a transferred file, such as a
441 - Change the checksum seed order in the per-block checksums. This prevents
442 someone from trying to create checksum blocks that match in sum but not
445 - Fixed a with the per-dir filter files (using `-FF`) that could trigger an
448 - Only skip `set_modtime()` on a transferred file if the time is exactly
451 - Don't create an empty backup dir for a transferred file that doesn't exist
454 - Fixed a bug where `--link-dest` and `--xattrs` could cause rsync to exit if
455 a filename had a matching dir of the same name in the alt-dest area.
457 - Allow more than 32 group IDs per user in the daemon's gid=LIST config.
459 - Fix the logging of %b & %c via `--log-file` (daemon logging was already
460 correct, as was `--out-format='%b/%c'`).
462 - Fix erroneous acceptance of `--info=5` & `--debug=5` (an empty flag name is
467 - Added `(DRY RUN)` info to the `--debug=exit` output line.
469 - Use usleep() for our msleep() function if it is available.
471 - Added a few extra long-option names to rrsync script, which will make
474 - Made configure choose to use linux xattrs on netbsd (rather than not
477 - Added `-wo` (write-only) option to rrsync support script.
479 - Misc. manpage tweaks.
481 ### DEVELOPER RELATED:
483 - Fixed a bug with the Makefile's use of `INSTALL_STRIP`.
485 - Improve a test in the suite that could get an erroneous timestamp error.
487 - Tweaks for newer versions of git in the packaging tools.
489 - Improved the m4 generation rules and some autoconf idioms.
491 ------------------------------------------------------------------------------
494 # NEWS for rsync 3.1.1 (22 Jun 2014)
496 Protocol: 31 (unchanged)
498 ## Changes since 3.1.0:
502 - If the receiver gets bogus filenames from the sender (an unexpected leading
503 slash or a `..` infix dir), exit with an error. This prevents a malicious
504 sender from trying to inject filenames that would affect an area outside the
505 destination directories.
507 - Fixed a failure to remove the partial-transfer temp file when interrupted
508 (and rsync is not saving the partial files).
510 - Changed the chown/group/xattr-set order to avoid losing some security-
511 related xattr info (that would get cleared by a chown).
513 - Fixed a bug in the xattr-finding code that could make a non-root-run
514 receiver not able to find some xattr numbers.
516 - Fixed a bug in the early daemon protocol where a timeout failed to be
517 honored (e.g. if the remote side fails to send us the initial protocol
520 - Fixed unintended inclusion of commas in file numbers in the daemon log.
522 - We once again send the 'f' sub-flag (of `-e`) to the server side so it knows
523 that we can handle incremental-recursion directory errors properly in older
526 - Fixed an issue with too-aggressive keep-alive messages causing a problem for
527 older rsync versions early in the transfer.
529 - Fixed an incorrect message about backup-directory-creation when using
530 `--dry-run` and the backup dir is not an absolute path.
532 - Fixed a bug where a failed deletion and/or a failed sender-side removal
533 would not affect the exit code.
535 - Fixed a bug that caused a failure when combining `--delete-missing-args`
536 with `--xattrs` and/or `--acls`.
538 - Fixed a strange `dir_depth` assertion error that was caused by empty-dir
539 removals and/or duplicate files in the transfer.
541 - Fixed a problem with `--info=progress2`'s output stats where rsync would
542 only update the stats at the end of each file's transfer. It now uses the
543 data that is flowing for the current file, making the stats more accurate
546 - Fixed an itemize bug that affected the combo of `--link-dest`, `-X`, and
549 - Fixed a problem with delete messages not appearing in the log file when the
550 user didn't use `--verbose`.
552 - Improve chunked xattr reading for OS X.
554 - Removed an attempted hard-link xattr optimization that was causing a
555 transfer failure. This removal is flagged in the compatibility code, so if a
556 better fix can be discovered, we have a way to flip it on again.
558 - Fixed a bug when the receiver is not configured to be able to hard link
559 symlimks/devices/special-file items but the sender sent some of these items
560 flagged as hard-linked.
562 - We now generate a better error if the buffer overflows in `do_mknod()`.
564 - Fixed a problem reading more than 16 ACLs on some OSes.
566 - Fixed the reading of the secrets file to avoid an infinite wait when the
569 - Fixed a parsing problem in the `--usermap`/`--groupmap` options when using
572 - Switched Cygwin back to using socketpair `pipes` to try to speed it up.
574 - Added knowledge of a few new options to rrsync.
578 - Tweaked the temp-file naming when `--temp-dir=DIR` is used: the temp-file
579 names will not get a '.' prepended.
581 - Added support for a new-compression idiom that does not compress all the
582 matching data in a transfer. This can help rsync to use less cpu when a
583 transfer has a lot of matching data, and also makes rsync compatible with a
584 non-bundled zlib. See the `--new-compress` and `--old-compress` options in
587 - Added the support/rsync-no-vanished wrapper script.
589 - Made configure more prominently mention when we failed to find yodl (in case
590 the user wants to be able to generate manpages from `*.yo` files).
592 - Have manpage mention how a daemon's max-verbosity setting affects info and
593 debug options. Also added more clarification on backslash removals for
594 excludes that contain wildcards.
596 - Have configure check if for the attr lib (for getxattr) for those systems
597 that need to link against it explicitly.
599 - Change the early dir-creation logic to only use that idiom in an
600 inc-recursive copy that is preserving directory times. e.g. using
601 `--omit-dir-times` will avoid these early directories being created.
603 - Fix a bug in `cmp_time()` that would return a wrong result if the 2 times
604 differed by an amount greater than what a `time_t` can hold.
606 ### DEVELOPER RELATED:
608 - We now include an example systemd file (in packaging/systemd).
610 - Tweaked configure to make sure that any intended use of the included popt
611 and/or zlib code is put early in the CFLAGS.
613 ------------------------------------------------------------------------------
616 # NEWS for rsync 3.1.0 (28 Sep 2013)
618 Protocol: 31 (changed)
620 ## Changes since 3.0.9:
624 - Output numbers in 3-digit groups by default (e.g. 1,234,567). See the
625 `--human-readable` option for a way to turn it off. See also the daemon's
626 `log format` parameter and related command-line options (including
627 `--out-format`) for a modifier that can be used to request digit-grouping or
628 human-readable output in log escapes. (Note that log output is unchanged by
631 - The `--list-only` option is now affected by the `--human-readable` setting.
632 It will display digit groupings by default, and unit suffixes if higher
633 levels of readability are requested. Also, the column width for the size
634 output has increased from 11 to 14 characters when human readability is
635 enabled. Use `--no-h` to get the old-style output and column size.
637 - The output of the `--progress` option has changed: the string `xfer` was
638 shortened to `xfr`, and the string `to-check` was shortened to `to-chk`,
639 both designed to make room for the (by default) wider display of file size
640 numbers without making the total line-length longer. Also, when incremental
641 recursion is enabled, the string `ir-chk` will be used instead of `to-chk`
642 up until the incremental-recursion scan is done, letting you know that the
643 value to check and the total value will still be increasing as new files are
646 - Enhanced the `--stats` output: 1) to mention how many files were created
647 (protocol >= 28), 2) to mention how many files were deleted (a new line for
648 protocol 31, but only output when `--delete` is in effect), and 3) to follow
649 the file-count, created-count, and deleted-count with a subcount list that
650 shows the counts by type. The wording of the transferred count has also
651 changed so that it is clearer that it is only a count of regular files.
655 - Fixed a bug in the iconv code when EINVAL or EILSEQ is returned with a full
658 - Fixed some rare bugs in `--iconv` processing that might cause a multibyte
659 character to get translated incorrectly.
661 - Fixed a bogus `vanished file` error if some files were specified with `./`
662 prefixes and others were not.
664 - Fixed a bug in `--sparse` where an extra gap could get inserted after a
667 - Changed the way `--progress` overwrites its prior output in order to make it
668 nearly impossible for the progress to get overwritten by an error.
670 - Improved the propagation of abnormal-exit error messages. This should help
671 the client side to receive errors from the server when it is exiting
672 abnormally, and should also avoid dying with an `connection unexpectedly
673 closed` exit when the closed connection is really expected.
675 - The sender now checks each file it plans to remove to ensure that it hasn't
676 changed from the first stat's info. This helps to avoid losing file data
677 when the user is not using the option in a safe manner.
679 - Fixed a data-duplication bug in the compress option that made compression
680 less efficient. This improves protocol 31 onward, while behaving in a
681 compatible (buggy) manner with older rsync protocols.
683 - When creating a temp-file, rsync is now a bit smarter about it dot-char
684 choices, which can fix a problem on OS X with names that start with `..`.
686 - Rsync now sets a cleanup flag for `--inplace` and `--append` transfers that
687 will flush the write buffer if the transfer aborts. This ensures that more
688 received data gets written out to the disk on an aborted transfer (which is
689 quite helpful on a slow, flaky connection).
691 - The reads that `map_ptr()` now does are aligned on 1K boundaries. This helps
692 some filesystems and/or files that don't like unaligned reads.
694 - Fix an issue in the msleep() function if time jumps backwards.
696 - Fix daemon-server module-name splitting bug where an arg would get split
697 even if `--protect-args` was used.
701 - Added the `--remote-option=OPT` (`-M OPT`) command-line option that is
702 useful for things like sending a remote `--log-file=FILE` or `--fake-super`
705 - Added the `--info=FLAGS` and `--debug=FLAGS` options to allow finer-grained
706 control over what is output. Added an extra type of `--progress` output
707 using `--info=progress2`.
709 - The `--msgs2stderr` option can help with debugging rsync by allowing the
710 debug messages to get output to stderr rather than travel via the socket
713 - Added the `--delete-missing-args` and `--ignore-missing-args` options to
714 either delete or ignore user-specified files on the receiver that are
715 missing on the sender (normally the absence of user-specified files
718 - Added a `T` (terabyte) category to the `--human-readable` size suffixes.
720 - Added the `--usermap`/`--groupmap`/`--chown` options for manipulating file
721 ownership during the copy.
723 - Added the `%C` escape to the log-output handling, which will output the MD5
724 checksum of any transferred file, or all files if `--checksum` was specified
725 (when protocol 30 or above is in effect).
727 - Added the `reverse lookup` parameter to the rsync daemon config file to
728 allow reverse-DNS lookups to be disabled.
730 - Added a forward-DNS lookup for the daemon's hosts allow/deny config. Can be
731 disabled via `forward lookup` parameter (defaults to enabled).
733 - Added a way for more than one group to be specified in the daemon's config
734 file, including a way to specify that you want all of the specified user's
735 groups without having to name them. Also changed the daemon to complain
736 about an inability to set explicitly-specified uid/gid values, even when not
739 - The daemon now tries to send the user the error messages from the pre-xfer
740 exec script when it fails.
742 - Improved the use of alt-dest options into an existing hierarchy of files: If
743 a match is found in an alt-dir, it takes precedence over an existing file.
744 (We'll need to wait for a future version before attribute-changes on
745 otherwise unchanged files are safe when using an existing hierarchy.)
747 - Added per-user authorization options and group-authorization support to the
748 daemon's `auth users` parameter.
750 - Added a way to reference environment variables in a daemon's config file
751 (using %VAR% references).
753 - When replacing a non-dir with a symlink/hard-link/device/special-file, the
754 update should now be done in an atomic manner.
756 - Avoid re-sending xattr info for hard-linked files w/the same xattrs
759 - The backup code was improved to use better logic maintaining the backup
760 directory hierarchy. Also, when a file is being backed up, rsync tries to
761 hard-link it into place so that the upcoming replacement of the destination
762 file will be atomic (for the normal, non-inplace logic).
764 - Added the ability to synchronize nano-second modified times.
766 - Added a few more default suffixes for the `dont compress` settings.
768 - Added the checking of the `RSYNC_PROTECT_ARGS` environment variable to allow
769 the default for the `--protect-args` command-line option to be overridden.
771 - Added the `--preallocate` command-line option.
773 - Allow `--password-file=-` to read the password from stdin (filename `-`).
775 - Rsync now comes packaged with an rsync-ssl helper script that can be used to
776 contact a remote rsync daemon using a piped-stunnel command. It also
777 includes an stunnel config file to run the server side to support ssl daemon
778 connections. See the packaging/lsb/rsync.spec file for one way to package
779 the resulting files. (Suggestions for how to make this even easier to
780 install & use are welcomed.)
782 - Improved the speed of some `--inplace` updates when there are lots of
783 identical checksum blocks that end up being unusable.
785 - Added the `--outbuf=N|L|B` option for choosing the output buffering.
787 - Repeating the `--fuzzy` option now causes the code to look for fuzzy matches
788 inside alt-dest directories too.
790 - The `--chmod` option now supports numeric modes, e.g. `--chmod=644,D755`
792 - Added some Solaris xattr code.
794 - Made an rsync daemon (the listening process) exit with a 0 status when it
795 was signaled to die. This helps launchd.
797 - Improved the `RSYNC_*` environment variables for the pre-xfer exec script:
798 when a daemon is sent multiple request args, they are now joined into a
799 single return value (separated by spaces) so that the `RSYNC_REQUEST`
800 environment variable is accurate for any `pre-xfer exec`. The values in
801 `RSYNC_ARG#` vars are no longer truncated at the `.` arg (prior to the
802 request dirs/files), so that all the requested values are also listed
803 (separately) in `RSYNC_ARG#` variables.
807 - Added an `instant-rsyncd` script to the support directory, which makes it
808 easy to configure a simple rsync daemon in the current directory.
810 - Added the `mapfrom` and `mapto` scripts to the support directory, which
811 makes it easier to do user/group mapping in a local transfer based on
812 passwd/group files from another machine.
814 - There's a new, improved version of the lsh script in the support dir: it's
815 written in perl and supports `-u` without resorting to using sudo (when run
816 as root). The old shell version is now named lsh.sh.
818 - There is a helper script named rsync-slash-strip in the support directory
819 for anyone that wants to change the way rsync handles args with trailing
820 slashes. (e.g. arg/ would get stripped to arg while arg/. would turn into
825 - The I/O code was rewritten to be simpler and do bigger buffered reads over
826 the socket. The I/O between the receiver and the generator was changed to be
827 standard multiplexed-I/O (like that over the socket).
829 - The sender tries to use any dead time while the generator is looking for
830 files to transfer in order to do sender-side directory scanning in a more
833 - A daemon can now inform a client about a daemon-configured timeout value so
834 that the client can assist in the keep-alive activity (protocol 31).
836 - The filter code received some refactoring to make it more extendible, to
837 read better, and do better sanity checking.
839 - Really big numbers are now output using our own big-num routine rather than
840 casting them to a double and using a %.0f conversion.
842 - The `pool_alloc` library has received some minor improvements in alignment
845 - Added `init_stat_x()` function to avoid duplication of acl/xattr init code.
847 - The included zlib was upgraded from 1.2.3 to 1.2.8.
849 - Rsync can now be compiled to use an unmodified zlib library instead of the
850 tweaked one that is included with rsync. This will eventually become the
851 default, at which point we'll start the countdown to removing the included
852 zlib. Until then, feel free to configure using:
854 ./configure `--with-included-zlib=no`
856 ### DEVELOPER RELATED:
858 - Added more conditional debug output.
860 - Fixed some build issues for android and minix.
862 ------------------------------------------------------------------------------
865 # NEWS for rsync 3.0.9 (23 Sep 2011)
867 Protocol: 30 (unchanged)
869 ## Changes since 3.0.8:
873 - Fix a crash bug in checksum scanning when `--inplace` is used.
875 - Fix a hang if a hard-linked file cannot be opened by the sender (e.g. if it
876 has no read permission).
878 - Fix preservation of a symlink's system xattrs (e.g. selinux) on Linux.
880 - Fix a memory leak in the xattr code.
882 - Fixed a bug with `--delete-excluded` when a filter merge file has a rule
883 that specifies a receiver-only side restriction.
885 - Fix a bug with the modifying of unwritable directories.
887 - Fix `--fake-super`'s interaction with `--link-dest` same-file comparisons.
889 - Fix the updating of the `curr_dir` buffer to avoid a duplicate slash.
891 - Fix the directory permissions on an implied dot-dir when using `--relative`
892 (e.g. /outside/path/././send/path).
894 - Fixed some too-long sleeping instances when using `--bwlimit`.
896 - Fixed when symlink ownership difference-checking gets compiled into
899 - Improved the socket-error reporting when multiple protocols fail.
901 - Fixed a case where a socket error could reference just-freed memory.
903 - Failing to use a password file that was specified on the command-line is now
906 - Fix the non-root updating of directories that don't have the read and/or
909 - Make daemon-excluded file errors more error-like.
911 - Fix a compilation issue on older C compilers (due to a misplaced var
914 - Make configure avoid finding socketpair on cygwin.
916 - Avoid trying to reference `SO_BROADCAST` if the OS doesn't support it.
918 - Fix some issues with the post-processing of the man pages.
920 - Fixed the user home-dir handling in the support/lsh script.
922 - Some minor manpage improvements.
924 ------------------------------------------------------------------------------
927 # NEWS for rsync 3.0.8 (26 Mar 2011)
929 Protocol: 30 (unchanged)
931 ## Changes since 3.0.7:
935 - Fixed two buffer-overflow issues: one where a directory path that is exactly
936 MAXPATHLEN was not handled correctly, and one handling a `--backup-dir` that
937 is extra extra large.
939 - Fixed a data-corruption issue when preserving hard-links without preserving
940 file ownership, and doing deletions either before or during the transfer
941 (CVE-2011-1097). This fixes some assert errors in the hard-linking code, and
942 some potential failed checksums (via `-c`) that should have matched.
944 - Fixed a potential crash when an rsync daemon has a filter/exclude list and
945 the transfer is using ACLs or xattrs.
947 - Fixed a hang if a really large file is being processed by an rsync that
948 can't handle 64-bit numbers. Rsync will now complain about the file being
951 - For devices and special files, we now avoid gathering useless ACL and/or
952 xattr information for files that aren't being copied. (The un-copied files
953 are still put into the file list, but there's no need to gather data that is
954 not going to be used.) This ensures that if the user uses `--no-D`, that
955 rsync can't possibly complain about being unable to gather extended
956 information from special files that are in the file list (but not in the
959 - Properly handle requesting remote filenames that start with a dash. This
960 avoids a potential error where a filename could be interpreted as a (usually
963 - Fixed a bug in the comparing of upper-case letters in file suffixes for
966 - If an rsync daemon has a module configured without a path setting, rsync
967 will now disallow access to that module.
969 - If the destination arg is an empty string, it will be treated as a reference
970 to the current directory (as 2.x used to do).
972 - If rsync was compiled with a newer time-setting function (such as lutimes),
973 rsync will fall-back to an older function (such as utimes) on a system where
974 the newer function is not around. This helps to make the rsync binary more
975 portable in mixed-OS-release situations.
977 - Fixed a batch-file writing bug that would not write out the full set of
978 compatibility flags that the transfer was using. This fixes a potential
979 protocol problem for a batch file that contains a sender-side I/O error: it
980 would have been sent in a way that the batch-reader wasn't expecting.
982 - Some improvements to the hard-linking code to ensure that device-number
983 hashing is working right, and to supply more information if the hard-link
986 - The `--inplace` code was improved to not search for an impossible checksum
987 position. The quadruple-verbose chunk[N] message will now mention when an
988 inplace chunk was handled by a seek rather than a read+write.
990 - Improved ACL mask handling, e.g. for Solaris.
992 - Fixed a bug that prevented `--numeric-ids` from disabling the translation of
993 user/group IDs for ACLs.
995 - Fixed an issue where an xattr and/or ACL transfer that used an alt-dest
996 option (e.g. `--link-dest`) could output an error trying to itemize the
997 changes against the alt-dest directory's xattr/ACL info but was instead
998 trying to access the not-yet-existing new destination directory.
1000 - Improved xattr system-error messages to mention the full path to the file.
1002 - The `--link-dest` checking for identical symlinks now avoids considering
1003 attribute differences that cannot be changed on the receiver.
1005 - Avoid trying to read/write xattrs on certain file types for certain OSes.
1006 Improved configure to set `NO_SYMLINK_XATTRS`, `NO_DEVICE_XATTRS`, and/or
1007 `NO_SPECIAL_XATTRS` defines in config.h.
1009 - Improved the unsafe-symlink errors messages.
1011 - Fixed a bug setting xattrs on new files that aren't user writable.
1013 - Avoid re-setting xattrs on a hard-linked file w/the same xattrs.
1015 - Fixed a bug with `--fake-super` when copying files and dirs that aren't user
1018 - Fixed a bug where a sparse file could have its last sparse block turned into
1019 a real block when rsync sets the file size (requires ftruncate).
1021 - If a temp-file name is too long, rsync now avoids truncating the name in the
1022 middle of adjacent high-bit characters. This prevents a potential filename
1023 error if the filesystem doesn't allow a name to contain an invalid
1024 multi-byte sequence.
1026 - If a muli-protocol socket connection fails (i.e., when contacting a daemon),
1027 we now report all the failures, not just the last one. This avoids losing a
1028 relevant error (e.g. an IPv4 connection-refused error) that happened before
1029 the final error (e.g. an IPv6 protocol-not-supported error).
1031 - Generate a transfer error if we try to call chown with a `-1` for a uid or a
1032 gid (which is not settable).
1034 - Fixed the working of `--force` when used with `--one-file-system`.
1036 - Fix the popt arg parsing so that an option that doesn't take an arg will
1037 reject an attempt to supply one (can configure `--with-included-popt` if
1038 your system's popt library doesn't yet have this fix).
1040 - A couple minor option tweaks to the support/rrsync script, and also some
1041 regex changes that make vim highlighting happier.
1043 - Fixed some issues in the support/mnt-excl script.
1045 - Various manpage improvements.
1049 - Added `.hg/` to the default cvs excludes (see `-C` & `--cvs-exclude`).
1051 ### DEVELOPER RELATED:
1053 - Use lchmod() whenever it is available (not just on symlinks).
1055 - A couple fixes to the `socketpair_tcp()` routine.
1057 - Updated the helper scripts in the packaging subdirectory.
1059 - Renamed configure.in to configure.ac.
1061 - Fixed configure's checking for iconv routines for newer OS X versions.
1063 - Fixed the testsuite/xattrs.test script on OS X.
1065 ------------------------------------------------------------------------------
1066 <a name="3.0.7"></a>
1068 # NEWS for rsync 3.0.7 (31 Dec 2009)
1070 Protocol: 30 (unchanged)
1072 ## Changes since 3.0.6:
1076 - Fixed a bogus free when using `--xattrs` with `--backup`.
1078 - Avoid an error when `--dry-run` was trying to stat a prior hard-link file
1079 that hasn't really been created.
1081 - Fixed a problem with `--compress` (`-z`) where the receiving side could
1082 return the error "inflate (token) returned -5".
1084 - Fixed a bug where `--delete-during` could delete in a directory before it
1085 noticed that the sending side sent an I/O error for that directory (both
1086 sides of the transfer must be at least 3.0.7).
1088 - Improved `--skip-compress`'s error handling of bad character-sets and got
1089 rid of a lingering debug fprintf().
1091 - Fixed the daemon's conveyance of `io_error` value from the sender.
1093 - An rsync daemon use seteuid() (when available) if it used setuid().
1095 - Get the permissions right on a `--fake-super` transferred directory that
1096 needs more owner permissions to emulate root behavior.
1098 - An absolute-path filter rule (i.e. with a '/' modifier) no longer loses its
1099 modifier when sending the filter rules to the remote rsync.
1101 - Improved the "--delete does not work without -r or -d" message.
1103 - Improved rsync's handling of `--timeout` to avoid a weird timeout case where
1104 the sender could timeout even though it has recently written data to the
1105 socket (but hasn't read data recently, due to the writing).
1107 - Some misc manpage improvements.
1109 - Fixed the chmod-temp-dir testsuite on a system without /var/tmp.
1111 - Make sure that a timeout specified in the daemon's config is used as a
1112 maximum timeout value when the user also specifies a timeout.
1114 - Improved the error-exit reporting when rsync gets an error trying to cleanup
1115 after an error: the initial error is reported.
1117 - Improved configure's detection of IPv6 for solaris and cygwin.
1119 - The AIX sysacls routines will now return ENOSYS if ENOTSUP is missing.
1121 - Made our (only used if missing) getaddrinfo() routine use `inet_pton()`
1122 (which we also provide) instead of `inet_aton()`.
1124 - The exit-related debug messages now mention the program's role so it is
1125 clear who output what message.
1127 ### DEVELOPER RELATED:
1129 - Got rid of type-punned compiler warnings output by newer gcc versions.
1131 - The Makefile now ensures that proto.h will be rebuilt if config.h changes.
1133 - The testsuite no longer uses `id -u`, so it works better on solaris.
1135 ------------------------------------------------------------------------------
1136 <a name="3.0.6"></a>
1138 # NEWS for rsync 3.0.6 (8 May 2009)
1140 Protocol: 30 (unchanged)
1142 ## Changes since 3.0.5:
1146 - Fixed a `--read-batch` hang when rsync is reading a batch file that was
1147 created from an incremental-recursion transfer.
1149 - Fixed the daemon's socket code to handle the simultaneous arrival of
1150 multiple connections.
1152 - Fix `--safe-links`/`--copy-unsafe-links` to properly handle symlinks that
1153 have consecutive slashes in the value.
1155 - Fixed the parsing of an `[IPv6_LITERAL_ADDR]` when a USER@ is prefixed.
1157 - The sender now skips a (bogus) symlink that has a 0-length value, which
1158 avoids a transfer error in the receiver.
1160 - Fixed a case where the sender could die with a tag-0 error if there was an
1161 I/O during the sending of the file list.
1163 - Fixed the rrsync script to avoid a server-side problem when `-e` is at the
1164 start of the short options.
1166 - Fixed a problem where a vanished directory could turn into an exit code 23
1167 instead of the proper exit code 24.
1169 - Fixed the `--iconv` conversion of symlinks when doing a local copy.
1171 - Fixed a problem where `--one-file-system` was not stopping deletions on the
1172 receiving side when a mount-point directory did not match a directory in the
1175 - Fixed the dropping of an ACL mask when no named ACL values were present.
1177 - Fixed an ACL/xattr corruption issue where the `--backup` option could cause
1178 rsync to associate the wrong ACL/xattr information with received files.
1180 - Fixed the use of `--xattrs` with `--only-write-batch`.
1182 - Fixed the use of `--dry-run` with `--read-batch`.
1184 - Fixed configure's erroneous use of target.
1186 - Fixed configure's `--disable-debug` option.
1188 - Fixed a run-time issue for systems that can't find `iconv_open()` by adding
1189 the `--disable-iconv-open` configure option.
1191 - Complain and die if the user tries to combine `--remove-source-files` (or
1192 the deprecated `--remove-sent-files`) with `--read-batch`.
1194 - Fixed an failure transferring special files from Solaris to Linux.
1196 ------------------------------------------------------------------------------
1197 <a name="3.0.5"></a>
1199 # NEWS for rsync 3.0.5 (28 Dec 2008)
1201 Protocol: 30 (unchanged)
1203 ## Changes since 3.0.4:
1207 - Initialize xattr data in a couple spots in the hlink code, which avoids a
1208 crash when the xattr pointer's memory happens to start out non-zero. Also
1209 fixed the itemizing of an alt-dest file's xattrs when hard-linking.
1211 - Don't send a bogus `-` option to an older server if there were no short
1214 - Fixed skipping of unneeded updates in a batch file when incremental
1215 recursion is active. Added a test for this. Made batch-mode handle `redo`
1216 files properly (and without hanging).
1218 - Fix the %P logfile escape when the daemon logs from inside a chroot.
1220 - Fixed the use of `-s` (`--protect-args`) when used with a remote source or
1221 destination that had an empty path (e.g. `host:`). Also fixed a problem when
1222 `-s` was used when accessing a daemon via a remote-shell.
1224 - Fixed the use of a dot-dir path (e.g. foo/./bar) inside a `--files-from`
1225 file when the root of the transfer isn't the current directory.
1227 - Fixed a bug with `-K --delete` removing symlinks to directories when
1228 incremental recursion is active.
1230 - Fixed a hard to trigger hang when using `--remove-source-files`.
1232 - Got rid of an annoying delay when accessing a daemon via a remote-shell.
1234 - Properly ignore (superfluous) source args on a `--read-batch` command.
1236 - Improved the manpage's description of the `*` wildcard to remove the
1237 confusing `non-empty` qualifier.
1239 - Fixed reverse lookups in the compatibility-library version of getnameinfo().
1241 - Fixed a bug when using `--sparse` on a sparse file that has over 2GB of
1242 consecutive sparse data.
1244 - Avoid a hang when using at least 3 `--verbose` options on a transfer with a
1245 client sender (which includes local copying).
1247 - Fixed a problem with `--delete-delay` reporting an error when it was ready
1248 to remove a directory that was now gone.
1250 - Got rid of a bunch of `warn_unused_result` compiler warnings.
1252 - If an ftruncate() on a received file fails, it now causes a partial-
1255 - Allow a path with a leading `//` to be preserved (CYGWIN only).
1259 - Made the support/atomic-rsync script able to perform a fully atomic update
1260 of the copied hierarchy when the destination is setup using a particular
1263 ------------------------------------------------------------------------------
1264 <a name="3.0.4"></a>
1266 # NEWS for rsync 3.0.4 (6 Sep 2008)
1268 Protocol: 30 (unchanged)
1270 ## Changes since 3.0.3:
1274 - Fixed a bug in the hard-linking code where it would sometimes try to
1275 allocate 0 bytes of memory (which fails on some OSes, such as AIX).
1277 - Fixed the hard-linking of files from a device that has a device number of 0
1278 (which seems to be a common device number on NetBSD).
1280 - Fixed the handling of a `--partial-dir` that cannot be created. This
1281 particularly impacts the `--delay-updates` option (since the files cannot be
1282 delayed without a partial-dir), and was potentially destructive if the
1283 `--remove-source-files` was also specified.
1285 - Fixed a couple issues in the `--fake-super` handling of xattrs when the
1286 destination files have root-level attributes (e.g. selinux values) that a
1287 non-root copy can't affect.
1289 - Improved the keep-alive check in the generator to fire consistently in
1290 incremental-recursion mode when `--timeout` is enabled.
1292 - The `--iconv` option now converts the content of a symlink too, instead of
1293 leaving it in the wrong character-set (requires 3.0.4 on both sides of the
1296 - When using `--iconv`, if a filename fails to convert on the receiving side,
1297 this no longer makes deletions in the root-dir of the transfer fail silently
1298 (the user now gets a warning about deletions being disabled due to IO error
1299 as long as `--ignore-errors` was not specified).
1301 - When using `--iconv`, if a server-side receiver can't convert a filename,
1302 the error message sent back to the client no longer mangles the name with
1303 the wrong charset conversion.
1305 - Fixed a potential alignment issue in the IRIX ACL code when allocating the
1306 initial `struct acl` object. Also, cast mallocs to avoid warnings.
1308 - Changed some errors that were going to stdout to go to stderr.
1310 - Made `human_num()` and `human_dnum()` able to output a negative number
1311 (rather than outputting a cryptic string of punctuation).
1315 - Rsync will avoid sending an `-e` option to the server if an older protocol
1316 is requested (and thus the option would not be useful). This lets the user
1317 specify the `--protocol=29` option to access an overly-restrictive server
1318 that is rejecting the protocol-30 use of `-e` to the server.
1320 - Improved the message output for an `RERR_PARTIAL` exit.
1322 ### DEVELOPER RELATED:
1324 - The Makefile will not halt for just a timestamp change on the Makefile or
1325 the configure files, only for actual changes in content.
1327 - Changed some commands in the testsuite's xattrs.test that called `rsync`
1328 instead of `$RSYNC`.
1330 - Enhanced the release scripts to be able to handle a branch release and to do
1331 even more consistency checks on the files.
1333 ------------------------------------------------------------------------------
1334 <a name="3.0.3"></a>
1336 # NEWS for rsync 3.0.3 (29 Jun 2008)
1338 Protocol: 30 (unchanged)
1340 ## Changes since 3.0.2:
1344 - Fixed a wildcard matching problem in the daemon when a module has `use
1347 - Fixed a crash bug in the hard-link code.
1349 - Fixed the sending of xattr directory information when the code finds a
1350 `--link-dest` or `--copy-dest` directory with unchanged xattrs -- the
1351 destination directory now gets these unchanged xattrs properly applied.
1353 - Fixed an xattr-sending glitch that could cause an `Internal abbrev` error.
1355 - Fixed the combination of `--xattrs` and `--backup`.
1357 - The generator no longer allows a '.' dir to be excluded by a daemon- exclude
1360 - Fixed deletion handling when copying a single, empty directory (with no
1361 files) to a differently named, non-existent directory.
1363 - Fixed the conversion of spaces into dashes in the %M log escape.
1365 - Fixed several places in the code that were not returning the right errno
1366 when a function failed.
1368 - Fixed the backing up of a device or special file into a backup dir.
1370 - Moved the setting of the socket options prior to the connect().
1372 - If rsync exits in the middle of a `--progress` output, it now outputs a
1373 newline to help prevent the progress line from being overwritten.
1375 - Fixed a problem with how a destination path with a trailing slash or a
1376 trailing dot-dir was compared against the daemon excludes.
1378 - Fixed the sending of large (size > 16GB) files when talking to an older
1379 rsync (protocols < 30): we now use a compatible block size limit.
1381 - If a file's length is so huge that we overflow a checksum buffer count (i.e.
1382 several hundred TB), warn the user and avoid sending an invalid checksum
1383 struct over the wire.
1385 - If a source arg is excluded, `--relative` no longer adds the excluded arg's
1386 implied dirs to the transfer. This fix also made the exclude check happen in
1387 the better place in the sending code.
1389 - Use the `overflow_exit()` function for overflows, not `out_of_memory()`.
1391 - Improved the code to better handle a system that has only 32-bit file
1396 - The rsyncd.conf manpage now consistently refers to the parameters in the
1397 daemon config file as `parameters`.
1399 - The description of the `--inplace` option was improved.
1403 - Added a new script in the support directory, deny-rsync, which allows an
1404 admin to (temporarily) replace the rsync command with a script that sends an
1405 error message to the remote client via the rsync protocol.
1407 ### DEVELOPER RELATED:
1409 - Fixed a testcase failure if the tests are run as root and made some
1410 compatibility improvements.
1412 - Improved the daemon tests, including checking module comments, the listing
1413 of files, and the ensuring that daemon excludes can't affect a dot-dir arg.
1415 - Improved some build rules for those that build in a separate directory from
1416 the source, including better install rules for the man pages, and the fixing
1417 of a proto.h-tstamp rule that could make the binaries get rebuild without
1420 - Improved the testsuite to work around a problem with some utilities (e.g. cp
1421 -p & touch -r) rounding sub-second timestamps.
1423 - Ensure that the early patches don't cause any generated-file hunks to
1424 bleed-over into patches that follow.
1426 ------------------------------------------------------------------------------
1427 <a name="3.0.2"></a>
1429 # NEWS for rsync 3.0.2 (8 Apr 2008)
1431 Protocol: 30 (unchanged)
1433 ## Changes since 3.0.1:
1437 - Fixed a potential buffer overflow in the xattr code.
1443 ### DEVELOPER RELATED:
1445 - The RPM spec file was improved to install more useful files.
1447 - A few developer-oriented scripts were moved from the support dir to the
1450 ------------------------------------------------------------------------------
1451 <a name="3.0.1"></a>
1453 # NEWS for rsync 3.0.1 (3 Apr 2008)
1455 Protocol: 30 (unchanged)
1457 ## Changes since 3.0.0:
1459 ### NOTABLE CHANGES IN BEHAVIOR:
1461 - Added the 'c'-flag to the itemizing of non-regular files so that the
1462 itemized output doesn't get hidden if there were no attribute changes, and
1463 also so that the itemizing of a `--copy-links` run will distinguish between
1464 copying an identical non-regular file and the creation of a revised version
1465 with a new value (e.g. a changed symlink referent, a new device number,
1470 - Fixed a crash bug when a single-use rsync daemon (via remote shell) was run
1471 without specifying a `--config=FILE` option.
1473 - Fixed a crash when backing up a directory that has a default ACL.
1475 - Fixed a bug in the handling of xattr values that could cause rsync to not
1476 think that a file's extended attributes are up-to-date.
1478 - Fixed the working of `--fake-super` with `--link-dest` and `--xattrs`.
1480 - Fixed a hang when combining `--dry-run` with `--remove-source-files`.
1482 - Fixed a bug with `--iconv`'s handling of files that cannot be converted: a
1483 failed name can no longer cause a transfer failure.
1485 - Fixed the building of the rounding.h file on systems that need custom
1486 CPPFLAGS to be used. Also improved the error reporting if the building of
1489 - Fixed the use of the `--protect-args` (`-s`) option when talking to a
1492 - Fixed the `--ignore-existing` option's protection of files on the receiver
1493 that are non-regular files on the sender (e.g. if a symlink or a dir on the
1494 sender is trying to replace a file on the receiver). The reverse protection
1495 (protecting a dir/symlink/device from being replaced by a file) was already
1498 - Fixed an assert failure if `--hard-links` is combined with an option that
1499 can skip a file in a set of hard-linked files (i.e. `--ignore-existing`,
1500 `--append`, etc.), without skipping all the files in the set.
1502 - Avoid setting the modify time on a directory that already has the right
1503 modify time set. This avoids tweaking the dir's ctime.
1505 - Improved the daemon-exclude handling to do a better job of applying the
1506 exclude rules to path entries. It also sends the user an error just as if
1507 the files were actually missing (instead of silently ignoring the user's
1508 args), and avoids sending the user the filter-action messages for these
1509 non-user-initiated rules.
1511 - Fixed some glitches with the dry-run code's missing-directory handling,
1512 including a problem when combined with `--fuzzy`.
1514 - Fixed some glitches with the skipped-directory handling.
1516 - Fixed the 'T'-flag itemizing of symlinks when `--time` isn't preserved.
1518 - Fixed a glitch in the itemizing of permissions with the `-E` option.
1520 - The `--append` option's restricting of transfers to those that add data no
1521 longer prevents the updating of non-content changes to otherwise up-to- date
1522 files (i.e. those with the same content but differing permissions,
1523 ownership, xattrs, etc.).
1525 - Don't allow `--fake-super` to be specified with `-XX` (double `--xattrs`)
1526 because the options conflict. If a daemon has `fake super` enabled, it
1527 automatically downgrades a `-XX` request to `-X`.
1529 - Fixed a couple bugs in the parsing of daemon-config excludes that could make
1530 a floating exclude rule get treated as matching an absolute path.
1532 - A daemon doesn't try to auto-refuse the `iconv` option if iconv-support
1533 wasn't compiled in to the daemon (avoiding a warning in the logs).
1535 - Fixed the inclusion of per-dir merge files from implied dirs.
1537 - Fixed the support/rrsync script to work with the latest options that rsync
1538 sends (including its flag-specifying use of `-e` to the server).
1542 - Added the `--old-dirs` (`--old-d`) option to make it easier for a user to
1543 ask for file-listings with older rsync versions (this is easier than having
1544 to type `-r --exclude='/*/*'` manually).
1546 - When getting an error while asking an older rsync daemon for a file listing,
1547 rsync will try to notice if the error is a rejection of the `--dirs` (`-d`)
1548 option and let the user know how to work around the issue.
1550 - Added a few more `--no-OPTION` overrides.
1552 - Improved the documentation of the `--append` option.
1554 - Improved the documentation of the filter/exclude/include daemon parameters.
1558 - Fixed a couple minor bugs in the included popt library (ones which I sent to
1559 the official popt project for inclusion in the 1.14 release).
1561 - Fixed a stat() call that should have been `do_stat()` so that the proper
1562 normal/64-bit stat() function gets called. (Was in an area that should not
1563 have caused problems, though.)
1565 - Changed the file-glob code to do a directory scan without using the `glob`
1566 and `glob.h`. This lets us do the globbing with less memory churn, and also
1567 avoid adding daemon-excluded items to the returned args.
1569 ### DEVELOPER RELATED:
1571 - The configure script tries to get the user's compiler to not warn about
1572 unused function parameters if the build is not including one or more of the
1573 ACL/xattrs/iconv features.
1575 - The configure script now has better checks for figuring out if the included
1576 popt code should be used or not.
1578 - Fixed two testsuite glitches: avoid a failure if someone's `cd` command
1579 outputs the current directory when cd-ing to a relative path, and made the
1580 itemized test query how rsync was built to determine if it should expect
1581 hard-linked symlinks or not.
1583 - Updated the testsuite to verify that various bug fixes remain fixed.
1585 - The RPM spec file was updated to have: (1) comments for how to use the
1586 rsync-patch tar file, and (2) an /etc/xinetd.d/rsync file.
1588 - Updated the build scripts to work with a revised FTP directory structure.
1590 ------------------------------------------------------------------------------
1591 <a name="3.0.0"></a>
1593 # NEWS for rsync 3.0.0 (1 Mar 2008)
1595 Protocol: 30 (changed)
1597 ## Changes since 2.6.9:
1599 ### NOTABLE CHANGES IN BEHAVIOR:
1601 - The handling of implied directories when using `--relative` has changed to
1602 send them as directories (e.g. no implied dir is ever sent as a symlink).
1603 This avoids unexpected behavior and should not adversely affect most people.
1604 If you're one of those rare individuals who relied upon having an implied
1605 dir be duplicated as a symlink, you should specify the transfer of the
1606 symlink and the transfer of the referent directory as separate args. (See
1607 also `--keep-dirlinks` and `--no-implied-dirs`.) Also, exclude rules no
1608 longer have a partial effect on implied dirs.
1610 - Requesting a remote file-listing without specifying `-r` (`--recursive`) now
1611 sends the `-d` (`--dirs`) option to the remote rsync rather than sending
1612 `-r` along with an extra exclude of `/*/*`. If the remote rsync does not
1613 understand the `-d` option (i.e. it is 2.6.3 or older), you will need to
1614 either turn off `-d` (`--no-d`), or specify `-r --exclude='/*/*'` manually.
1616 - In `--dry-run` mode, the last line of the verbose summary text is output
1617 with a "(DRY RUN)" suffix to help remind you that no updates were made.
1618 Similarly, `--only-write-batch` outputs `(BATCH ONLY)`.
1620 - A writable rsync daemon with `use chroot` disabled now defaults to a
1621 symlink-munging behavior designed to make symlinks safer while also allowing
1622 absolute symlinks to be stored and retrieved. This also has the effect of
1623 making symlinks unusable while they're in the daemon's hierarchy. See the
1624 daemon's `munge symlinks` parameter for details.
1626 - Starting up an extra copy of an rsync daemon will not clobber the pidfile
1627 for the running daemon -- if the pidfile exists, the new daemon will exit
1628 with an error. This means that your wrapper script that starts the rsync
1629 daemon should be made to handle lock-breaking (if you want any automatic
1630 breaking of locks to be done).
1634 - A daemon with `use chroot = no` and excluded items listed in the daemon
1635 config file now properly checks an absolute-path arg specified for these
1636 options: `--compare-dest`, `--link-dest`, `--copy-dest`, `--partial-dir`,
1637 `--backup-dir`, `--temp-dir`, and `--files-from`.
1639 - A daemon can now be told to disable all user- and group-name translation on
1640 a per-module basis. This avoids a potential problem with a writable daemon
1641 module that has `use chroot` enabled -- if precautions weren't taken, a user
1642 could try to add a missing library and get rsync to use it. This makes rsync
1643 safer by default, and more configurable when id- translation is not desired.
1644 See the daemon's `numeric ids` parameter for full details.
1646 - A chroot daemon can now indicate which part of its path should affect the
1647 chroot call, and which part should become an inside-chroot path for the
1648 module. This allows you to have outside-the-transfer paths (such as for
1649 libraries) even when you enable chroot protection. The idiom used in the
1650 rsyncd.conf file is: `path = /chroot/dirs/./dirs/inside`
1652 - If a file's data arrived successfully on the receiving side but the rename
1653 of the temporary file to the destination file failed AND the
1654 `--remove-source-files` (or the deprecated `--remove-sent-files`) option was
1655 specified, rsync no longer erroneously removes the associated source file.
1657 - Fixed the output of `-ii` when combined with one of the `--*-dest` options:
1658 it now itemizes all the items, not just the changed ones.
1660 - Made the output of all file types consistent when using a `--*-dest` option.
1661 Prior versions would output too many creation events for matching items.
1663 - The code that waits for a child pid now handles being interrupted by a
1664 signal. This fixes a problem with the pre-xfer exec function not being able
1665 to get the exit status from the script.
1667 - A negated filter rule (i.e. with a '!' modifier) no longer loses the
1668 negation when sending the filter rules to the remote rsync.
1670 - Fixed a problem with the `--out-format` (aka `--log-format`) option %f: it
1671 no longer outputs superfluous directory info for a non-daemon rsync.
1673 - Fixed a problem with `-vv` (double `--verbose`) and `--stats` when `pushing`
1674 files (which includes local copies). Version 2.6.9 would complete the copy,
1675 but exit with an error when the receiver output its memory stats.
1677 - If `--password-file` is used on a non-daemon transfer, rsync now complains
1678 and exits. This should help users figure out that they can't use this option
1679 to control a remote shell's password prompt.
1681 - Make sure that directory permissions of a newly-created destination
1682 directory are handled right when `--perms` is left off.
1684 - The itemized output of a newly-created destination directory is now output
1685 as a creation event, not a change event.
1687 - Improved `--hard-link` so that more corner cases are handled correctly when
1688 combined with options such as `--link-dest` and/or `--ignore-existing`.
1690 - The `--append` option no longer updates a file that has the same size.
1692 - Fixed a bug when combining `--backup` and `--backup-dir` with `--inplace`:
1693 any missing backup directories are now created.
1695 - Fixed a bug when using `--backup` and `--inplace` with `--whole-file` or
1696 `--read-batch`: backup files are actually created now.
1698 - The daemon pidfile is checked and created sooner in the startup sequence.
1700 - If a daemon module's `path` value is not an absolute pathname, the code now
1701 makes it absolute internally (making it work properly).
1703 - Ensure that a temporary file always has owner-write permission while we are
1704 writing to it. This avoids problems with some network filesystems when
1705 transferring read-only files.
1707 - Any errors output about password-file reading no longer cause an error at
1708 the end of the run about a partial transfer.
1710 - The `--read-batch` option for protocol 30 now ensures that several more
1711 options are set correctly for the current batch file: `--iconv`, `--acls`,
1712 `--xattrs`, `--inplace`, `--append`, and `--append-verify`.
1714 - Using `--only-write-batch` to a daemon receiver now works properly (older
1715 versions would update some files while writing the batch).
1717 - Avoid outputting a "file has vanished" message when the file is a broken
1718 symlink and `--copy-unsafe-links` or `--copy-dirlinks` is used (the code
1719 already handled this for `--copy-links`).
1721 - Fixed the combination of `--only-write-batch` and `--dry-run`.
1723 - Fixed rsync's ability to remove files that are not writable by the file's
1724 owner when rsync is running as the same user.
1726 - When transferring large files, the sender's hashtable of checksums is kept
1727 at a more reasonable state of fullness (no more than 80% full) so that the
1728 scanning of the hashtable will not bog down as the number of blocks
1733 - A new incremental-recursion algorithm is now used when rsync is talking to
1734 another 3.x version. This starts the transfer going more quickly (before all
1735 the files have been found), and requires much less memory. See the
1736 `--recursive` option in the manpage for some restrictions.
1738 - Lowered memory use in the non-incremental-recursion algorithm for typical
1739 option values (usually saving from 21-29 bytes per file).
1741 - The default `--delete` algorithm is now `--delete-during` when talking to a
1742 3.x rsync. This is a faster scan than using `--delete-before` (which is the
1743 default when talking to older rsync versions), and is compatible with the
1744 new incremental recursion mode.
1746 - Rsync now allows multiple remote-source args to be specified rather than
1747 having to rely on a special space-splitting side-effect of the remote-
1748 shell. Additional remote args must specify the same host or an empty one
1749 (e.g. empty: `:file1` or `::module/file2`). For example, this means that
1750 local use of brace expansion now works: `rsync -av host:dir/{f1,f2} .`
1752 - Added the `--protect-args` (`-s`) option, that tells rsync to send most of
1753 the command-line args at the start of the transfer rather than as args to
1754 the remote-shell command. This protects them from space-splitting, and only
1755 interprets basic wildcard special shell characters (`*?[`).
1757 - Added the `--delete-delay` option, which is a more efficient way to delete
1758 files at the end of the transfer without needing a separate delete pass.
1760 - Added the `--acls` (`-A`) option to preserve Access Control Lists. This is
1761 an improved version of the prior patch that was available, and it even
1762 supports OS X ACLs. If you need to have backward compatibility with old,
1763 ACL-patched versions of rsync, apply the acls.diff file from the patches
1766 - Added the `--xattrs` (`-X`) option to preserve extended attributes. This is
1767 an improved version of the prior patch that was available, and it even
1768 supports OS X xattrs (which includes their resource fork data). If you need
1769 to have backward compatibility with old, xattr-patched versions of rsync,
1770 apply the xattrs.diff file from the patches dir.
1772 - Added the `--fake-super` option that allows a non-super user to preserve all
1773 attributes of a file by using a special extended-attribute idiom. It even
1774 supports the storing of foreign ACL data on your backup server. There is
1775 also an analogous `fake super` parameter for an rsync daemon.
1777 - Added the `--iconv` option, which allows rsync to convert filenames from one
1778 character-set to another during the transfer. The default is to make this
1779 feature available as long as your system has `iconv_open()`. If compilation
1780 fails, specify `--disable-iconv` to configure, and then rebuild. If you want
1781 rsync to perform character-set conversions by default, you can specify
1782 `--enable-iconv=CONVERT_STRING` with the default value for the `--iconv`
1783 option that you wish to use. For example, `--enable-iconv=.` is a good
1784 choice. See the rsync manpage for an explanation of the `--iconv` option's
1787 - A new daemon config parameter, `charset`, lets you control the character-
1788 set that is used during an `--iconv` transfer to/from a daemon module. You
1789 can also set your daemon to refuse `no-iconv` if you want to force the
1790 client to use an `--iconv` transfer (requiring an rsync 3.x client).
1792 - Added the `--skip-compress=LIST` option to override the default list of file
1793 suffixes that will not be compressed when using `--compress` (`-z`).
1795 - The daemon's default for `dont compress` was extended to include: `*.7z`
1796 `*.mp[34]` `*.mov` `*.avi` `*.ogg` `*.jpg` `*.jpeg` and the name-matching routine was also
1797 optimized to run more quickly.
1799 - The `--max-delete` option now outputs a warning if it skipped any file
1800 deletions, including a count of how many deletions were skipped. (Older
1801 versions just silently stopped deleting things.)
1803 - You may specify `--max-delete=0` to a 3.0.0 client to request that it warn
1804 about extraneous files without deleting anything. If you're not sure what
1805 version the client is, you can use the less-obvious `--max-delete=-1`, as
1806 both old and new versions will treat that as the same request (though older
1807 versions don't warn).
1809 - The `--hard-link` option now uses less memory on both the sending and
1810 receiving side for all protocol versions. For protocol 30, the use of a
1811 hashtable on the sending side allows us to more efficiently convey to the
1812 receiver what files are linked together. This reduces the amount of data
1813 sent over the socket by a considerable margin (rather than adding more
1814 data), and limits the in-memory storage of the device+inode information to
1815 just the sending side for the new protocol 30, or to the receiving side when
1816 speaking an older protocol (note that older rsync versions kept the
1817 device+inode information on both sides).
1819 - The filter rules now support a perishable (`p`) modifier that marks rules
1820 that should not have an effect in a directory that is being deleted. e.g.
1821 `-f '-p .svn/'` would only affect `live` .svn directories.
1823 - Rsync checks all the alternate-destination args for validity (e.g.
1824 `--link-dest`). This lets the user know when they specified a directory that
1827 - If we get an ENOSYS error setting the time on a symlink, we don't complain
1828 about it anymore (for those systems that even support the setting of the
1829 modify-time on a symlink).
1831 - Protocol 30 now uses MD5 checksums instead of MD4.
1833 - Changed the `--append` option to not checksum the existing data in the
1834 destination file, which speeds up file appending.
1836 - Added the `--append-verify` option, which works like the older `--append`
1837 option (verifying the existing data in the destination file). For
1838 compatibility with older rsync versions, any use of `--append` that is
1839 talking protocol 29 or older will revert to the `--append-verify` method.
1841 - Added the `--contimeout=SECONDS` option that lets the user specify a
1842 connection timeout for rsync daemon access.
1844 - Documented and extended the support for the `RSYNC_CONNECT_PROG` variable
1845 that can be used to enhance the client side of a daemon connection.
1847 - Improved the dashes and double-quotes in the nroff manpage output.
1849 - Rsync now supports a lot more `--no-OPTION` override options.
1853 - The file-list sorting algorithm now uses a sort that keeps any same- named
1854 items in the same order as they were specified. This allows rsync to always
1855 ensure that the first of the duplicates is the one that will be included in
1856 the copy. The new sort is also faster than the glibc version of qsort() and
1859 - Rsync now supports the transfer of 64-bit timestamps (`time_t` values).
1861 - Made the file-deletion code use a little less stack when recursing through a
1862 directory hierarchy of extraneous files.
1864 - Fixed a build problem with older (2.x) versions of gcc.
1866 - Added some isType() functions that make dealing with signed characters
1867 easier without forcing variables via casts.
1869 - Changed strcat/strcpy/sprintf function calls to use safer versions.
1871 - Upgraded the included popt version to 1.10.2 and improved its use of
1872 string-handling functions.
1874 - Added missing prototypes for compatibility functions from the lib dir.
1876 - Configure determines if iconv() has a const arg, allowing us to avoid a
1879 - Made the sending of some numbers more efficient for protocol 30.
1881 - Make sure that a daemon process doesn't mind if the client was weird and
1882 omitted the `--server` option.
1884 - There are more internal logging categories available in protocol 30 than the
1885 age-old FINFO and FERROR, including `FERROR_XFER` and FWARN. These new
1886 categories allow some errors and warnings to go to stderr without causing an
1887 erroneous end-of-run warning about some files not being able to be
1890 - Improved the use of `const` on pointers.
1892 - Improved J.W.'s `pool_alloc` routines to add a way of incrementally freeing
1893 older sections of a pool's memory.
1895 - The getaddrinfo.c compatibility code in the `lib` dir was replaced with some
1896 new code (derived from samba, derived from PostgreSQL) that has a better
1897 license than the old code.
1899 ### DEVELOPER RELATED:
1901 - Rsync is now licensed under the GPLv3 or later.
1903 - Rsync is now being maintained in a `git` repository instead of CVS (though
1904 the old CVS repository still exists for historical access). Several
1905 maintenance scripts were updated to work with git.
1907 - Generated files are no longer committed into the source repository. The
1908 autoconf and autoheader commands are now automatically run during the normal
1909 use of `configure` and `make`. The latest dev versions of all generated
1910 files can also be copied from the samba.org web site (see the prepare-source
1911 script's fetch option).
1913 - The `patches` directory of diff files is now built from branches in the
1914 rsync git repository (branch patch/FOO creates file patches/FOO.diff). This
1915 directory is now distributed in a separate separate tar file named
1916 rsync-patches-VERSION.tar.gz instead of the main rsync-VERSION.tar.gz.
1918 - The proto.h file is now built using a simple perl script rather than a
1919 complex awk script, which proved to be more widely compatible.
1921 - When running the tests, we now put our per-test temp dirs into a sub-
1922 directory named testtmp (which is created, if missing). This allows someone
1923 to symlink the testtmp directory to another filesystem (which is useful if
1924 the build dir's filesystem does not support ACLs and xattrs, but another
1927 - Rsync now has a way of handling protocol-version changes during the
1928 development of a new protocol version. This causes any out-of-sync versions
1929 to speak an older protocol rather than fail in a cryptic manner. This
1930 addition makes it safer to deploy a pre-release version that may interact
1931 with the public. This new exchange of sub-version info does not interfere
1932 with the `{MIN,MAX}_PROTOCOL_VERSION` checking algorithm (which does not
1933 have enough range to allow the main protocol number to be incremented for
1934 every minor tweak in that happens during development).
1936 - The csprotocol.txt file was updated to mention the daemon protocol change in
1939 ------------------------------------------------------------------------------
1940 <a name="2.6.9"></a>
1942 # NEWS for rsync 2.6.9 (6 Nov 2006)
1944 Protocol: 29 (unchanged)
1946 ## Changes since 2.6.8:
1950 - If rsync is interrupted via a handled signal (such as SIGINT), it will once
1951 again clean-up its temp file from the destination dir.
1953 - Fixed an overzealous sanitizing bug in the handling of the `--link-dest`,
1954 `--copy-dest`, and `--compare-dest` options to a daemon without chroot: if
1955 the copy's destination dir is deeper than the top of the module's path,
1956 these options now accept a safe number of parent-dir (../) references (since
1957 these options are relative to the destination dir). The old code incorrectly
1958 chopped off all `../` prefixes for these options, no matter how deep the
1959 destination directory was in the module's hierarchy.
1961 - Fixed a bug where a deferred info/error/log message could get sent directly
1962 to the sender instead of being handled by rwrite() in the generator. This
1963 fixes an `unexpected tag 3` fatal error, and should also fix a potential
1964 problem where a deferred info/error message from the receiver might bypass
1965 the log file and get sent only to the client process. (These problems could
1966 only affect an rsync daemon that was receiving files.)
1968 - Fixed a bug when `--inplace` was combined with a `--*-dest` option and we
1969 update a file's data using an alternate basis file. The code now notices
1970 that it needs to copy the matching data from the basis file instead of
1971 (wrongly) assuming that it was already present in the file.
1973 - Fixed a bug where using `--dry-run` with a `--*-dest` option with a path
1974 relative to a directory that does not yet exist: the affected option gets
1975 its proper path value so that the output of the dry-run is right.
1977 - Fixed a bug in the %f logfile escape when receiving files: the destination
1978 path is now included in the output (e.g. you can now tell when a user
1979 specifies a subdir inside a module).
1981 - If the receiving side fails to create a directory, it will now skip trying
1982 to update everything that is inside that directory.
1984 - If `--link-dest` is specified with `--checksum` but without `--times`, rsync
1985 will now allow a hard-link to be created to a matching link-dest file even
1986 when the file's modify-time doesn't match the server's file.
1988 - The daemon now calls more timezone-using functions prior to doing a chroot.
1989 This should help some C libraries to generate proper timestamps from inside
1990 a chrooted daemon (and to not try to access /etc/timezone over and over
1993 - Fixed a bug in the handling of an absolute `--partial-dir=ABS_PATH` option:
1994 it now deletes an alternate basis file from the partial-dir that was used to
1995 successfully update a destination file.
1997 - Fixed a bug in the handling of `--delete-excluded` when using a per-dir
1998 merge file: the merge file is now honored on the receiving side, and only
1999 its unqualified include/exclude commands are ignored (just as is done for
2000 global include/excludes).
2002 - Fixed a recent bug where `--delete` was not working when transferring from
2003 the root (/) of the filesystem with `--relative` enabled.
2005 - Fixed a recent bug where an `--exclude='*'` could affect the root (/) of the
2006 filesystem with `--relative` enabled.
2008 - When `--inplace` creates a file, it is now created with owner read/write
2009 permissions (0600) instead of no permissions at all. This avoids a problem
2010 continuing a transfer that was interrupted (since `--inplace` will not
2011 update a file that has no write permissions).
2013 - If either `--remove-source-files` or `--remove-sent-files` is enabled and we
2014 are unable to remove the source file, rsync now outputs an error.
2016 - Fixed a bug in the daemon's `incoming chmod` rule: newly-created directories
2017 no longer get the 'F' (file) rules applied to them.
2019 - Fixed an infinite loop bug when a filter rule was rejected due to being
2022 - When the server receives a `--partial-dir` option from the client, it no
2023 longer runs the client-side code that adds an assumed filter rule (since the
2024 client will be sending us the rules in the usual manner, and they may have
2025 chosen to override the auto-added rule).
2029 - Added the `--log-file=FILE` and `--log-file-format=FORMAT` options. These
2030 can be used to tell any rsync to output what it is doing to a log file.
2031 They work with a client rsync, a non-daemon server rsync (see the man page
2032 for instructions), and also allows the overriding of rsyncd.conf settings
2033 when starting a daemon.
2035 - The `--log-format` option was renamed to be `--out-format` to avoid
2036 confusing it with affecting the log-file output. (The old option remains as
2037 an alias for the new to preserve backward compatibility.)
2039 - Made `log file` and `syslog facility` settable on a per-module basis in the
2040 daemon's config file.
2042 - Added the `--remove-source-files` option as a replacement for the (now
2043 deprecated) `--remove-sent-files` option. This new option removes all
2044 non-dirs from the source directories, even if the file was already
2045 up-to-date. This fixes a problem where interrupting an rsync that was using
2046 `--remove-sent-files` and restarting it could leave behind a file that the
2047 earlier rsync synchronized, but didn't get to remove. (The deprecated
2048 `--remove-sent-files` is still understood for now, and still behaves in the
2049 same way as before.)
2051 - Added the option `--no-motd` to suppress the message-of-the-day output from
2052 a daemon when doing a copy. (See the manpage for a caveat.)
2054 - Added a new environment variable to the pre-/post-xfer exec commands (in the
2055 daemon's config file): `RSYNC_PID`. This value will be the same in both the
2056 pre- and post-xfer commands, so it can be used as a unique ID if the
2057 pre-xfer command wants to cache some arg/request info for the post-xfer
2062 - Did a code audit using IBM's code-checker program and made several changes,
2063 including: replacing most of the strcpy() and sprintf() calls with
2064 strlcpy(), snprintf(), and memcpy(), adding a 0-value to an enum that had
2065 been intermingling a literal 0 with the defined enum values, silencing some
2066 uninitialized memory checks, marking some functions with a `noreturn`
2067 attribute, and changing an `if` that could never succeed on some platforms
2068 into a pre-processor directive that conditionally compiles the code.
2070 - Fixed a potential bug in `f_name_cmp()` when both the args are a top-level
2071 `.` dir (which doesn't happen in normal operations).
2073 - Changed `exit_cleanup()` so that it can never return instead of exit. The
2074 old code might return if it found the `exit_cleanup()` function was being
2075 called recursively. The new code is segmented so that any recursive calls
2076 move on to the next step of the exit-processing.
2078 - The macro WIFEXITED(stat) will now be defined if the OS didn't already
2081 ### DEVELOPER RELATED:
2083 - The acls.diff and xattrs.diff patches have received a bunch of work to make
2084 them much closer to being acceptable in the main distribution. The xattrs
2085 patch also has some preliminary Mac OS X and FreeBSD compatibility code that
2086 various system types to exchange extended file-attributes.
2088 - A new diff in the patches dir, fake-root.diff, allows rsync to maintain a
2089 backup hierarchy with full owner, group, and device info without actually
2090 running as root. It does this using a special extended attribute, so it
2091 depends on xattrs.diff (which depends on acls.diff).
2093 - The rsync.yo and rsyncd.conf.yo files have been updated to work better with
2094 the latest yodl 2.x releases.
2096 - Updated config.guess and config.sub to their 2006-07-02 versions.
2098 - Updated various files to include the latest FSF address and to have
2099 consistent opening comments.
2101 ------------------------------------------------------------------------------
2102 <a name="2.6.8"></a>
2104 # NEWS for rsync 2.6.8 (22 Apr 2006)
2106 Protocol: 29 (unchanged)
2108 ## Changes since 2.6.7:
2112 - Fixed a bug in the exclude code where an anchored exclude without any
2113 wildcards fails to match an absolute source arg, but only when `--relative`
2116 - Improved the I/O code for the generator to fix a potential hang when the
2117 receiver gets an EOF on the socket but the generator's select() call never
2118 indicates that the socket is writable for it to be notified about the EOF.
2119 (This can happen when using stunnel).
2121 - Fixed a problem with the file-reading code where a failed read (such as that
2122 caused by a bad sector) would not advance the file's read-position beyond
2123 the failed read's data.
2125 - Fixed a logging bug where the `log file` directive was not being honored in
2126 a single-use daemon (one spawned by a remote-shell connection or by init).
2128 - If rsync cannot honor the `--delete` option, we output an error and exit
2129 instead of silently ignoring the option.
2131 - Fixed a bug in the `--link-dest` code that prevented special files (such as
2132 fifos) from being linked.
2134 - The ability to hard-link symlinks and special files is now determined at
2135 configure time instead of at runtime. This fixes a bug with `--link-dest`
2136 creating a hard-link to a symlink's referent on a BSD system.
2140 - In daemon mode, if rsync fails to bind to the requested port, the error(s)
2141 returned by socket() and/or bind() are now logged.
2143 - When we output a fatal error, we now output the version of rsync in the
2146 - Improved the documentation for the `--owner` and `--group` options.
2148 - The rsyncstats script in `support` has an improved line-parsing regex that
2149 is easier to read and also makes it to parse syslog-generated lines.
2151 - A new script in `support`: file-attr-restore, can be used to restore the
2152 attributes of a file-set (the permissions, ownership, and group info) taken
2153 from the cached output of a `find ARG... -ls` command.
2155 ### DEVELOPER RELATED:
2157 - Removed the unused function `write_int_named()`, the unused variable
2158 `io_read_phase`, and the rarely used variable `io_write_phase`. This also
2159 elides the confusing 'phase "unknown"' part of one error message.
2161 - Removed two unused configure checks and two related (also unused)
2162 compatibility functions.
2164 - The xattrs.diff patch received a security fix that prevents a potential
2165 buffer overflow in the `receive_xattr()` code.
2167 - The acls.diff patch has been improved quite a bit, with more to come.
2169 - A new patch was added: log-file.diff. This contains an early version of a
2170 future option, `--log-file=FILE`, that will allow any rsync to log its
2171 actions to a file (something that only a daemon supports at present).
2173 ------------------------------------------------------------------------------
2174 <a name="2.6.7"></a>
2176 # NEWS for rsync 2.6.7 (11 Mar 2006)
2178 Protocol: 29 (unchanged)
2180 ## Changes since 2.6.6:
2184 - The letter 'D' in the itemized output was being used for both devices
2185 (character or block) as well as other special files (such as fifos and named
2186 sockets). This has changed to separate non-device special files under the
2187 'S' designation (e.g. `cS+++++++ path/fifo`). See also the `--specials`
2190 - The way rsync escapes unreadable characters has changed. First, rsync now
2191 has support for recognizing valid multibyte character sequences in your
2192 current locale, allowing it to escape fewer characters than before for a
2193 locale such as UTF-8. Second, it now uses an escape idiom of `\#123`, which
2194 is the literal string `\#` followed by exactly 3 octal digits. Rsync no
2195 longer doubles a backslash character in a filename (e.g. it used to output
2196 `foo\\bar` when copying `foo\bar`) -- now it only escapes a backslash that
2197 is followed by a hash-sign and 3 digits (0-9) (e.g. it will output
2198 `foo\#134#789` when copying `foo\#789`). See also the `--8-bit-output`
2199 (`-8`) option, mentioned below.
2201 Script writers: the local rsync is the one that outputs escaped names, so if
2202 you need to support unescaping of filenames for older rsyncs, I'd suggest
2203 that you parse the output of `rsync --version` and only use the old
2204 unescaping rules for 2.6.5 and 2.6.6.
2208 - Fixed a really old bug that caused `--checksum` (`-c`) to checksum all the
2209 files encountered during the delete scan (ouch).
2211 - Fixed a potential hang in a remote generator: when the receiver gets a
2212 read-error on the socket, it now signals the generator about this so that
2213 the generator does not try to send any of the terminating error messages to
2214 the client (avoiding a potential hang in some setups).
2216 - Made hard-links work with symlinks and devices again.
2218 - If the sender gets an early EOF reading a source file, we propagate this
2219 error to the receiver so that it can discard the file and try requesting it
2220 again (which is the existing behavior for other kinds of read errors).
2222 - If a device-file/special-file changes permissions, rsync now updates the
2223 permissions without recreating the file.
2225 - If the user specifies a remote-host for both the source and destination, we
2226 now output a syntax error rather than trying to open the destination
2227 hostspec as a filename.
2229 - When `--inplace` creates a new destination file, rsync now creates it with
2230 permissions 0600 instead of 0000 -- this makes restarting possible when the
2231 transfer gets interrupted in the middle of sending a new file.
2233 - Reject the combination of `--inplace` and `--sparse` since the sparse-output
2234 algorithm doesn't work when overwriting existing data.
2236 - Fixed the directory name in the error that is output when `pop_dir()` fails.
2238 - Really fixed the parsing of a `!` entry in .cvsignore files this time.
2240 - If the generator gets a stat() error on a file, output it (this used to
2241 require at least `-vv` for the error to be seen).
2243 - If waitpid() fails or the child rsync didn't exit cleanly, we now handle the
2244 exit status properly and generate a better error.
2246 - Fixed some glitches in the double-verbose output when using `--copy-dest`,
2247 `--link-dest`, or `--compare-dest`. Also improved how the verbose output
2248 handles hard-links (within the transfer) that had an up-to-date alternate
2249 `dest` file, and copied files (via `--copy-dest`).
2251 - Fixed the matching of the dont-compress items (e.g. `*.gz`) against files
2252 that have a path component containing a slash.
2254 - If the code reading a filter/exclude file gets an EINTR error, rsync now
2255 clears the error flag on the file handle so it can keep on reading.
2257 - If `--relative` is active, the sending side cleans up trailing `/` or `/.`
2258 suffixes to avoid triggering a bug in older rsync versions. Also, we now
2259 reject a `..` dir if it would be sent as a relative dir.
2261 - If a non-directory is in the way of a directory and rsync is run with
2262 `--dry-run` and `--delete`, rsync no longer complains about not being able
2263 to opendir() the not-yet present directory.
2265 - When `--list-only` is used and a non-existent local destination dir was also
2266 specified as a destination, rsync no longer generates a warning about being
2267 unable to create the missing directory.
2269 - Fixed some problems with `--relative --no-implied-dirs` when the destination
2270 directory did not yet exist: we can now create a symlink or device when it
2271 is the first thing in the missing dir, and `--fuzzy` no longer complains
2272 about being unable to open the missing dir.
2274 - Fixed a bug where the `--copy-links` option would not affect implied
2275 directories without `--copy-unsafe-links` (see `--relative`).
2277 - Got rid of the need for `--force` to be used in some circumstances with
2278 `--delete-after` (making it consistent with
2279 `--delete-before`/`--delete-during`).
2281 - Rsync now ignores the SIGXFSZ signal, just in case your OS sends this when a
2282 file is too large (rsync handles the write error).
2284 - Fixed a bug in the Proxy-Authorization header's base64-encoded value: it was
2285 not properly padded with trailing '=' chars. This only affects a user that
2286 need to use a password-authenticated proxy for an outgoing daemon-rsync
2289 - If we're transferring an empty directory to a new name, rsync no longer
2290 forces `S_IWUSR` if it wasn't already set, nor does it accidentally leave it
2293 - Fixed a bug in the debug output (`-vvvvv`) that could mention the wrong
2294 checksum for the current file offset.
2296 - Rsync no longer allows a single directory to be copied over a non- directory
2301 - Added the `--append` option that makes rsync append data onto files that are
2302 longer on the source than the destination (this includes new files).
2304 - Added the `--min-size=SIZE` option to exclude small files from the transfer.
2306 - Added the `--compress-level` option to allow you to set how aggressive
2307 rsync's compression should be (this option implies `--compress`).
2309 - Enhanced the parsing of the SIZE value for `--min-size` and `--max-size` to
2310 allow easy entry of multiples of 1000 (instead of just multiples of 1024)
2311 and off-by-one values too (e.g. `--max-size=8mb-1`).
2313 - Added the `--8-bit-output` (`-8`) option, which tells rsync to avoid
2314 escaping high-bit characters that it thinks are unreadable in the current
2317 - The new option `--human-readable` (`-h`) changes the output of `--progress`,
2318 `--stats`, and the end-of-run summary to be easier to read. If repeated, the
2319 units become powers of 1024 instead of powers of 1000. (The old meaning of
2320 `-h`, as a shorthand for `--help`, still works as long as you just use it on
2321 its own, as in `rsync -h`.)
2323 - If lutimes() and/or lchmod() are around, use them to allow the preservation
2324 of attributes on symlinks.
2326 - The `--link-dest` option now affects symlinks and devices (when possible).
2328 - Added two config items to the rsyncd.conf parsing: `pre-xfer exec` and
2329 `post-xfer exec`. These allow a command to be specified on a per-module
2330 basis that will be run before and/or after a daemon-mode transfer. (See the
2331 man page for a list of the environment variables that are set with
2332 information about the transfer.)
2334 - When using the `--relative` option, you can now insert a dot dir in the
2335 source path to indicate where the replication of the source dirs should
2336 start. For example, if you specify a source path of
2337 rsync://host/module/foo/bar/./baz/dir with `-R`, rsync will now only
2338 replicate the `baz/dir` part of the source path (note: a trailing dot dir is
2339 unaffected unless it also has a trailing slash).
2341 - Added some new `--no-FOO` options that make it easier to override unwanted
2342 implied or default options. For example, `-a --no-o` (aka `--archive
2343 --no-owner`) can be used to turn off the preservation of file ownership that
2346 - Added the `--chmod=MODE` option that allows the destination permissions to
2347 be changed from the source permissions. E.g. `--chmod=g+w,o-rwx`
2349 - Added the `incoming chmod` and `outgoing chmod` daemon options that allow a
2350 module to specify what permissions changes should be applied to all files
2351 copied to and from the daemon.
2353 - Allow the `--temp-dir` option to be specified when starting a daemon, which
2354 sets the default temporary directory for incoming files.
2356 - If `--delete` is combined with `--dirs` without `--recursive`, rsync will
2357 now delete in any directory whose content is being synchronized.
2359 - If `--backup` is combined with `--delete` without `--backup-dir` (and
2360 without `--delete-excluded`), we add a `protect` filter-rule to ensure that
2361 files with the backup suffix are not deleted.
2363 - The file-count stats that are output by `--progress` were improved to better
2364 indicate what the numbers mean. For instance, the output: `(xfer#5,
2365 to-check=8383/9999)` indicates that this was the fifth file to be
2366 transferred, and we still need to check 8383 more files out of a total of
2369 - The include/exclude code now allows a `dir/***` directive (with 3 trailing
2370 stars) to match both the dir itself as well as all the content below the dir
2371 (`dir/**` would not match the dir).
2373 - Added the `--prune-empty-dirs` (`-m`) option that makes the receiving rsync
2374 discard empty chains of directories from the file-list. This makes it easier
2375 to selectively copy files from a source hierarchy and end up with just the
2376 directories needed to hold the resulting files.
2378 - If the `--itemize-changes` (`-i`) option is repeated, rsync now includes
2379 unchanged files in the itemized output (similar to `-vv`, but without all
2380 the other verbose messages that can get in the way). Of course, the client
2381 must be version 2.6.7 for this to work, but the remote rsync only needs to
2382 be 2.6.7 if you're pushing files.
2384 - Added the `--specials` option to tell rsync to copy non-device special files
2385 (which rsync now attempts even as a normal user). The `--devices` option now
2386 requests the copying of just devices (character and block). The `-D` option
2387 still requests both (e.g. `--devices` and `--specials`), `-a` still implies
2388 `-D`, and non-root users still get a silent downgrade that omits device
2391 - Added the `--super` option to make the receiver always attempt super-user
2392 activities. This is useful for systems that allow things such as devices to
2393 be created or ownership to be set without being UID 0, and is also useful
2394 for someone who wants to ensure that errors will be output if the receiving
2395 rsync isn't being run as root.
2397 - Added the `--sockopts` option for those few who want to customize the TCP
2398 options used to contact a daemon rsync.
2400 - Added a way for the `--temp-dir` option to be combined with a partial-dir
2401 setting that lets rsync avoid non-atomic updates (for those times when
2402 `--temp-dir` is not being used because space is tight).
2404 - A new support script, files-to-excludes, will transform a list of files into
2405 a set of include/exclude directives that will copy those files.
2407 - A new option, `--executability` (`-E`) can be used to preserve just the
2408 execute bit on files, for those times when using the `--perms` option is not
2411 - The daemon now logs each connection and also each module-list request that
2414 - New log-format options: %M (modtime), %U (uid), %G (gid), and %B (permission
2415 bits, e.g. `rwxr-xrwt`).
2417 - The `--dry-run` option no longer forces the enabling of `--verbose`.
2419 - The `--remove-sent-files` option now does a better job of incrementally
2420 removing the sent files on the sending side (older versions tended to clump
2421 up all the removals at the end).
2423 - A daemon now supersedes its minimal SIGCHLD handler with the standard
2424 PID-remembering version after forking. This ensures that the generator can
2425 get the child-exit status from the receiver.
2427 - Use of the `--bwlimit` option no longer interferes with the remote rsync
2428 sending error messages about invalid/refused options.
2430 - Rsync no longer returns a usage error when used with one local source arg
2431 and no destination: this now implies the `--list-only` option, just like the
2432 comparable situation with a remote source arg.
2434 - Added the `--copy-dirlinks` option, a more limited version of
2437 - Various documentation improvements, including: a better synopsis, some
2438 improved examples, a better discussion of the presence and absence of
2439 `--perms` (including how it interacts with the new `--executability` and
2440 `--chmod` options), an extended discussion of `--temp-dir`, an improved
2441 discussion of `--partial-dir`, a better description of rsync's pattern
2442 matching characters, an improved `--no-implied-dirs` section, and the
2443 documenting of what the `--stats` option outputs.
2445 - Various new and updated diffs in the patches dir, including: acls.diff,
2446 xattrs.diff, atimes.diff, detect-renamed.diff, and slp.diff.
2450 - We now use sigaction() and sigprocmask() if possible, and fall back on
2451 signal() if not. Using sigprocmask() ensures that rsync enables all the
2452 signals that it needs, just in case it was started in a masked state.
2454 - Some buffer sizes were expanded a bit, particularly on systems where
2455 MAXPATHLEN is overly small (e.g. cygwin).
2457 - If `io_printf()` tries to format more data than fits in the buffer, exit
2458 with an error instead of transmitting a truncated buffer.
2460 - If a `va_copy` macro is defined, lib/snprintf.c will use it when defining
2461 the `VA_COPY` macro.
2463 - Reduced the amount of stack memory needed for each level of directory
2464 recursion by nearly MAXPATHLEN bytes.
2466 - The wildmatch function was extended to allow an array of strings to be
2467 supplied as the string to match. This allows the exclude code to do less
2470 - Got rid of the `safe_fname()` function (and all the myriad calls) and
2471 replaced it with a new function in the log.c code that filters all the
2472 output going to the terminal.
2474 - Unified the `f_name()` and the `f_name_to()` functions.
2476 - Improved the hash-table code the sender uses to handle checksums to make it
2477 use slightly less memory and run just a little faster.
2479 ### DEVELOPER RELATED:
2481 - The diffs in the patches dir now require `patch -p1 <DIFF` instead of the
2482 previous `-p0`. Also, the version included in the release tar now affect
2483 generated files (e.g. configure, rsync.1, proto.h, etc.), so it is no longer
2484 necessary to run autoconf and/or yodl unless you're applying a patch that
2485 was checked out from CVS.
2487 - Several diffs in the patches dir now use the proper `--enable-FOO` configure
2488 option instead of `--with-FOO` to turn on the inclusion of the newly patched
2491 - There is a new script, `prepare-source` than can be used to update the
2492 various generated files (proto.h, configure, etc.) even before configure has
2493 created the Makefile (this is mainly useful when patching the source with a
2494 patch that doesn't affect generated files).
2496 - The testsuite now sets HOME so that it won't be affected by a file such as
2499 ------------------------------------------------------------------------------
2500 <a name="2.6.6"></a>
2502 # NEWS for rsync 2.6.6 (28 Jul 2005)
2504 Protocol: 29 (unchanged)
2506 ## Changes since 2.6.5:
2510 - The zlib code was upgraded to version 1.2.3 in order to make it more secure.
2511 While the widely-publicized security problem in zlib 1.2.2 did not affect
2512 rsync, another security problem surfaced that affects rsync's zlib 1.1.4.
2516 - The setting of `flist->high` in `clean_flist()` was wrong for an empty list.
2517 This could cause `flist_find()` to crash in certain rare circumstances (e.g.
2518 if just the right directory setup was around when `--fuzzy` was combined
2519 with `--link-dest`).
2521 - The outputting of hard-linked files when verbosity was > 1 was not right:
2522 (1) Without `-i` it would output the name of each hard-linked file as though
2523 it had been changed; it now outputs a `is hard linked` message for the file.
2524 (2) With `-i` it would output all dots for the unchanged attributes of a
2525 hard-link; it now changes those dots to spaces, as is done for other totally
2528 - When backing up a changed symlink or device, get rid of any old backup item
2529 so that we don't get an `already exists` error.
2531 - A couple places that were comparing a local and a remote modification- time
2532 were not honoring the `--modify-window` option.
2534 - Fixed a bug where the 'p' (permissions) itemized-changes flag might get set
2535 too often (if some non-significant mode bits differed).
2537 - Fixed a really old, minor bug that could cause rsync to warn about being
2538 unable to mkdir() a path that ends in `/.` because it just created the
2539 directory (required `--relative`, `--no-implied-dirs`, a source path that
2540 ended in either a trailing slash or a trailing `/.`, and a non-existing
2541 destination dir to tickle the bug in a recent version).
2545 - Made the `max verbosity` setting in the rsyncd.conf file settable on a
2546 per-module basis (which now matches the documentation).
2548 - The support/rrsync script has been upgraded to verify the args of options
2549 that take args (instead of rejecting any such options). The script was also
2550 changed to try to be more secure and to fix a problem in the parsing of a
2551 pull operation that has multiple sources.
2553 - Improved the documentation that explains the difference between a normal
2554 daemon transfer and a daemon-over remote-shell transfer.
2556 - Some of the diffs supplied in the patches dir were fixed and/or improved.
2560 - Made configure define `NOBODY_USER` (currently hard-wired to `nobody`) and
2561 `NOBODY_GROUP` (set to either `nobody` or `nogroup` depending on what we
2562 find in the /etc/group file).
2564 - Added a test to the test suite, itemized.test, that tests the output of `-i`
2565 (log-format w/%i) and some double-verbose messages.
2567 ------------------------------------------------------------------------------
2568 <a name="2.6.5"></a>
2570 # NEWS for rsync 2.6.5 (1 Jun 2005)
2572 Protocol: 29 (unchanged)
2574 ## Changes since 2.6.4:
2578 - Non-printable chars in filenames are now output using backslash- escaped
2579 characters rather than '?'s. Any non-printable character is output using 3
2580 digits of octal (e.g. `\n` -> `\012`), and a backslash is now output as
2581 `\\`. Rsync also uses your locale setting, which can make it treat fewer
2582 high-bit characters as non-printable.
2584 - If rsync received an empty file-list when pulling files, it would output a
2585 `nothing to do` message and exit with a 0 (success) exit status, even if the
2586 remote rsync returned an error (it did not do this under the same conditions
2587 when pushing files). This was changed to make the pulling behavior the same
2588 as the pushing behavior: we now do the normal end-of-run outputting
2589 (depending on options) and exit with the appropriate exit status.
2593 - A crash bug was fixed when a daemon had its `path` set to `/`, did not have
2594 chroot enabled, and used some anchored excludes in the rsyncd.conf file.
2596 - Fixed a bug in the transfer of a single file when `-H` is specified (rsync
2597 would either infinite loop or perhaps crash).
2599 - Fixed a case where the generator might try (and fail) to tweak the
2600 write-permissions of a read-only directory in list-only mode (this only
2601 caused an annoying warning message).
2603 - If `--compare-dest` or `--link-dest` uses a locally-copied file as the basis
2604 for an updated version, log this better when `--verbose` or `-i` is in
2607 - Fixed the accidental disabling of `--backup` during the `--delete-after`
2610 - Restored the ability to use the `--address` option in client mode (in
2611 addition to its use in daemon mode).
2613 - Make sure that some temporary progress information from the delete
2614 processing does not get left on the screen when it is followed by a newline.
2616 - When `--existing` skips a directory with extra verbosity, refer to it as a
2617 `directory`, not a `file`.
2619 - When transferring a single file to a different-named file, any generator
2620 messages that are source-file related no longer refer to the file by the
2621 destination filename.
2623 - Fixed a bug where hard-linking a group of files might fail if the generator
2624 hasn't created a needed destination directory yet.
2626 - Fixed a bug where a hard-linked group of files that is newly-linked to a
2627 file in a `--link-dest` dir doesn't link the files from the rest of the
2630 - When deleting files with the `--one-file-system` (`-x`) option set, rsync no
2631 longer tries to remove files from inside a mount-point on the receiving
2632 side. Also, we don't complain about being unable to remove the mount-point
2635 - Fixed a compatibility problem when using `--cvs-ignore` (`-C`) and sending
2636 files to an older rsync without using `--delete`.
2638 - Make sure that a `- !` or `+ !` include/exclude pattern does not trigger the
2639 list-clearing action that is reserved for `!`.
2641 - Avoid a timeout in the generator when the sender/receiver aren't handling
2642 the generator's checksum output quickly enough.
2644 - Fixed the omission of some directories in the delete processing when
2645 `--relative` (`-R`) was combined with a source path that had a trailing
2648 - Fixed a case where rsync would erroneously delete some files and then
2649 re-transfer them when the options `--relative` (`-R`) and `--recursive`
2650 (`-r`) were both enabled (along with `--delete`) and a source path had a
2653 - Make sure that `--max-size` doesn't affect a device or a symlink.
2655 - Make sure that a system with a really small MAXPATHLEN does not cause the
2656 buffers in `readfd_unbuffered()` to be too small to receive normal messages.
2657 (This mainly affected Cygwin.)
2659 - If a source pathname ends with a filename of `..`, treat it as if `../` had
2660 been specified (so that we don't copy files to the parent dir of the
2663 - If `--delete` is combined with a file-listing rsync command (i.e. no
2664 transfer is happening), avoid outputting a warning that we couldn't delete
2667 - If `--stats` is specified with `--delete-after`, ensure that all the
2668 `deleting` messages are output before the statistics.
2670 - Improved one `if` in the deletion code that was only checking errno for
2671 ENOTEMPTY when it should have also been checking for EEXIST (for
2672 compatibility with OS variations).
2676 - Added the `--only-write-batch=FILE` option that may be used (instead of
2677 `--write-batch=FILE`) to create a batch file without doing any actual
2678 updating of the destination. This allows you to divert all the file-updating
2679 data away from a slow data link (as long as you are pushing the data to the
2680 remote server when creating the batch).
2682 - When the generator is taking a long time to fill up its output buffer (e.g.
2683 if the transferred files are few, small, or missing), it now periodically
2684 flushes the output buffer so that the sender/receiver can get started on the
2685 files sooner rather than later.
2687 - Improved the keep-alive code to handle a long silence between the sender and
2688 the receiver that can occur when the sender is receiving the checksum data
2691 - Improved the auth-errors that are logged by the daemon to include some
2692 information on why the authorization failed: wrong user, password mismatch,
2693 etc. (The client-visible message is unchanged!)
2695 - Improved the client's handling of an `@ERROR` from a daemon so that it does
2696 not complain about an unexpectedly closed socket (since we really did expect
2697 the socket to close).
2699 - If the daemon can't open the log-file specified in rsyncd.conf, fall back to
2700 using syslog and log an appropriate warning. This is better than what was
2701 typically a totally silent (and fatal) failure (since a daemon is not
2702 usually run with the `--no-detach` option that was necessary to see the
2705 - The man pages now consistently refer to an rsync daemon as a `daemon`
2706 instead of a `server` (to distinguish it from the server process in a
2707 non-daemon transfer).
2709 - Made a small change to the rrsync script (restricted rsync -- in the support
2710 dir) to make a read-only server reject all `--remove-*` options when sending
2711 files (to future-proof it against the possibility of other similar options
2712 being added at some point).
2716 - Rsync now calls `setlocale(LC_CTYPE, "")`. This enables isprint() to better
2717 discern which filename characters need to be escaped in messages (which
2718 should result in fewer escaped characters in some locales).
2720 - Improved the naming of the log-file open/reopen/close functions.
2722 - Removed some protocol-compatibility code that was only needed to help
2723 someone running a pre-release of 2.6.4.
2727 - Added configure option `--disable-locale` to disable any use of setlocale()
2730 - Fixed a bug in the `SUPPORT{,_HARD}_LINKS` #defines which prevented rsync
2731 from being built without symlink or hard-link support.
2733 - Only #define `HAVE_REMSH` if it is going to be set to 1.
2735 - Configure now disables the use of mkstemp() under HP-UX (since they refuse
2736 to fix its broken handling of large files).
2738 - Configure now explicitly checks for the lseek64() function so that the code
2739 can use `HAVE_LSEEK64` instead of inferring lseek64()'s presence based on
2740 the presence of the `off64_t` type.
2742 - Configure no longer mentions the change in the default remote-shell (from
2743 rsh to ssh) that occurred for the 2.6.0 release.
2745 - Some minor enhancements to the test scripts.
2747 - Added a few new `*.diff` files to the patches dir, including a patch that
2748 enables the optional copying of extended attributes.
2750 ------------------------------------------------------------------------------
2751 <a name="2.6.4"></a>
2753 # NEWS for rsync 2.6.4 (30 March 2005)
2755 Protocol: 29 (changed)
2757 ## Changes since 2.6.3:
2761 - When rsync deletes a directory and outputs a verbose message about it, it
2762 now appends a trailing slash to the name instead of (only sometimes)
2763 outputting a preceding "directory " string.
2765 - The `--stats` output will contain file-list time-statistics if both sides
2766 are 2.6.4, or if the local side is 2.6.4 and the files are being pushed
2767 (since the stats come from the sending side). (Requires protocol 29 for a
2770 - The `%o` (operation) log-format escape now has a third value (besides `send`
2771 and `recv`): `del.` (with trailing dot to make it 4 chars). This changes
2772 the way deletions are logged in the daemon's log file.
2774 - When the `--log-format` option is combined with `--verbose`, rsync now
2775 avoids outputting the name of the file twice in most circumstances. As long
2776 as the `--log-format` item does not refer to any post-transfer items (such
2777 as %b or %c), the `--log-format` message is output prior to the transfer, so
2778 `--verbose` is now the equivalent of a `--log-format` of '%n%L' (which
2779 outputs the name and any link info). If the log output must occur after the
2780 transfer to be complete, the only time the name is also output prior to the
2781 transfer is when `--progress` was specified (so that the name will precede
2782 the progress stats, and the full `--log-format` output will come after).
2784 - Non-printable characters in filenames are replaced with a '?' to avoid
2785 corrupting the screen or generating empty lines in the output.
2789 - Restore the list-clearing behavior of `!` in a .cvsignore file (2.6.3 was
2790 only treating it as a special token in an rsync include/exclude file).
2792 - The combination of `--verbose` and `--dry-run` now mentions the full list of
2793 changes that would be output without `--dry-run`.
2795 - Avoid a mkdir warning when removing a directory in the destination that
2796 already exists in the `--backup-dir`.
2798 - An OS that has a binary mode for its files (such as cygwin) needed
2799 `setmode(fd, O_BINARY)` called on the temp-file we opened with mkstemp().
2800 (Fix derived from cygwin's 2.6.3 rsync package.)
2802 - Fixed a potential hang when verbosity is high, the client side is the
2803 sender, and the file-list is large.
2805 - Fixed a potential protocol-corrupting bug where the generator could merge a
2806 message from the receiver into the middle of a multiplexed packet of data if
2807 only part of that data had been written out to the socket when the message
2808 from the generator arrived.
2810 - We now check if the OS doesn't support using mknod() for creating FIFOs and
2811 sockets, and compile-in some compatibility code using mkfifo() and socket()
2814 - Fixed an off-by-one error in the handling of `--max-delete=N`. Also, if the
2815 `--max-delete` limit is exceeded during a run, we now output a warning about
2816 this at the end of the run and exit with a new error code (25).
2818 - One place in the code wasn't checking if fork() failed.
2820 - The `ignore nonreadable` daemon parameter used to erroneously affect
2821 readable symlinks that pointed to a non-existent file.
2823 - If the OS does not have lchown() and a chown() of a symlink will affect the
2824 referent of a symlink (as it should), we no longer try to set the user and
2827 - The generator now properly runs the hard-link loop and the dir-time
2828 rewriting loop after we're sure that the redo phase is complete.
2830 - When `--backup` was specified with `--partial-dir=DIR`, where DIR is a
2831 relative path, the backup code was erroneously trying to backup a file that
2832 was put into the partial-dir.
2834 - If a file gets resent in a single transfer and the `--backup` option is
2835 enabled along with `--inplace`, rsync no longer performs a duplicate backup
2836 (it used to overwrite the first backup with the failed file).
2838 - One call to `flush_write_file()` was not being checked for an error.
2840 - The `--no-relative` option was not being sent from the client to a server
2843 - If an rsync daemon specified `dont compress = ...` for a file and the client
2844 tried to specify `--compress`, the libz code was not handling a compression
2845 level of 0 properly. This could cause a transfer failure if the block-size
2846 for a file was large enough (e.g. rsync might have exited with an error for
2849 - Fixed a bug that would sometimes surface when using `--compress` and sending
2850 a file with a block-size larger than 64K (either manually specified, or
2851 computed due to the file being really large). Prior versions of rsync would
2852 sometimes fail to decompress the data properly, and thus the transferred
2853 file would fail its verification.
2855 - If a daemon can't open the specified log file (i.e. syslog is not being
2856 used), die without crashing. We also output an error about the failure on
2857 stderr (which will only be seen if `--no-detach` was specified) and exit
2858 with a new error code (6).
2860 - A local transfer no longer duplicates all its include/exclude options (since
2861 the forked process already has a copy of the exclude list, there's no need
2862 to send them a set of duplicates).
2864 - The output of the items that are being updated by the generator (dirs,
2865 symlinks, devices) is now intermingled in the proper order with the output
2866 from the items that the receiver is updating (regular files) when pulling.
2867 This misordering was particularly bad when `--progress` was specified.
2868 (Requires protocol 29.)
2870 - When `--timeout` is specified, lulls that occur in the transfer while the
2871 generator is doing work that does not generate socket traffic (looking for
2872 changed files, deleting files, doing directory-time touch-ups, etc.) will
2873 cause a new keep-alive packet to be sent that should keep the transfer going
2874 as long as the generator continues to make progress. (Requires protocol 29.)
2876 - The stat size of a device is not added to the total file size of the items
2877 in the transfer (the size might be undefined on some OSes).
2879 - Fixed a problem with refused-option messages sometimes not making it back to
2880 the client side when a remote `--files-from` was in effect and the daemon
2883 - The `--compare-dest` option was not updating a file that differed in (the
2884 preserved) attributes from the version in the compare-dest DIR.
2886 - When rsync is copying files into a write-protected directory, fixed the
2887 change-report output for the directory so that we don't report an identical
2888 directory as changed.
2892 - Rsync now supports popt's option aliases, which means that you can use
2893 /etc/popt and/or ~/.popt to create your own option aliases.
2895 - Added the `--delete-during` (`--del`) option which will delete files from
2896 the receiving side incrementally as each directory in the transfer is being
2897 processed. This makes it more efficient than the default,
2898 before-the-transfer behavior, which is now also available as
2899 `--delete-before` (and is still the default `--delete-WHEN` option that will
2900 be chosen if `--delete` or `--delete-excluded` is specified without a
2901 `--delete-WHEN` choice). All the `--del*` options infer `--delete`, so an
2902 rsync daemon that refuses `delete` will still refuse to allow any
2903 file-deleting options (including the new `--remove-sent-files` option).
2905 - All the `--delete-WHEN` options are now more memory efficient: Previously an
2906 duplicate set of file-list objects was created on the receiving side for the
2907 entire destination hierarchy. The new algorithm only creates one directory
2908 of objects at a time (for files inside the transfer).
2910 - Added the `--copy-dest` option, which works like `--link-dest` except that
2911 it locally copies identical files instead of hard-linking them.
2913 - Added support for specifying multiple `--compare-dest`, `--copy-dest`, or
2914 `--link-dest` options, but only of a single type. (Promoted from the patches
2915 dir and enhanced.) (Requires protocol 29.)
2917 - Added the `--max-size` option. (Promoted from the patches dir.)
2919 - The daemon-mode options are now separated from the normal rsync options so
2920 that they can't be mixed together. This makes it impossible to start a
2921 daemon that has improper default option values (which could cause problems
2922 when a client connects, such as hanging or crashing).
2924 - The `--bwlimit` option may now be used in combination with `--daemon` to
2925 specify both a default value for the daemon side and a value that cannot be
2926 exceeded by a user-specified `--bwlimit` option.
2928 - Added the `port` parameter to the rsyncd.conf file. (Promoted from the
2929 patches dir.) Also added `address`. The command-line options take precedence
2930 over a config-file option, as expected.
2932 - In `_exit_cleanup()`: when we are exiting with a partially-received file, we
2933 now flush any data in the write-cache before closing the partial file.
2935 - The `--inplace` support was enhanced to work with `--compare-dest`,
2936 `--link-dest`, and (the new) `--copy-dest` options. (Requires protocol 29.)
2938 - Added the `--dirs` (`-d`) option for an easier way to copy directories
2939 without recursion. Any directories that are encountered are created on the
2940 destination. Specifying a directory with a trailing slash copies its
2941 immediate contents to the destination.
2943 - The `--files-from` option now implies `--dirs` (`-d`).
2945 - Added the `--list-only` option, which is mainly a way for the client to put
2946 the server into listing mode without needing to resort to any internal
2947 option kluges (e.g. the age-old use of `-r --exclude='/*/*'` for a
2948 non-recursive listing). This option is used automatically (behind the
2949 scenes) when a modern rsync speaks to a modern daemon, but may also be
2950 specified manually if you want to force the use of the `--list-only` option
2951 over a remote-shell connection.
2953 - Added the `--omit-dir-times` (`-O`) option, which will avoid updating the
2954 modified time for directories when `--times` was specified. This option will
2955 avoid an extra pass through the file-list at the end of the transfer (to
2956 tweak all the directory times), which may provide an appreciable speedup for
2957 a really large transfer. (Promoted from the patches dir.)
2959 - Added the `--filter` (`-f`) option and its helper option, `-F`. Filter rules
2960 are an extension to the existing include/exclude handling that also supports
2961 nested filter files as well as per-directory filter files (like .cvsignore,
2962 but with full filter-rule parsing). This new option was chosen in order to
2963 ensure that all existing include/exclude processing remained 100% compatible
2964 with older versions. Protocol 29 is needed for full filter-rule support, but
2965 backward-compatible rules work with earlier protocol versions. (Promoted
2966 from the patches dir and enhanced.)
2968 - Added the `--delay-updates` option that puts all updated files into a
2969 temporary directory (by default `.~tmp~`, but settable via the
2970 `--partial-dir=DIR` option) until the end of the transfer. This makes the
2971 updates a little more atomic for a large transfer.
2973 - If rsync is put into the background, any output from `--progress` is
2976 - Documented the `max verbosity` setting for rsyncd.conf. (This setting was
2977 added a couple releases ago, but left undocumented.)
2979 - The sender and the generator now double-check the file-list index they are
2980 given, and refuse to try to do a file transfer on a non-file index (since
2981 that would indicate that something had gone very wrong).
2983 - Added the `--itemize-changes` (`-i`) option, which is a way to output a more
2984 detailed list of what files changed and in what way. The effect is the same
2985 as specifying a `--log-format` of `%i %n%L` (see both the rsync and
2986 rsyncd.conf manpages). Works with `--dry-run` too.
2988 - Added the `--fuzzy` (`-y`) option, which attempts to find a basis file for a
2989 file that is being created from scratch. The current algorithm only looks in
2990 the destination directory for the created file, but it does attempt to find
2991 a match based on size/mod-time (in case the file was renamed with no other
2992 changes) as well as based on a fuzzy name-matching algorithm. This option
2993 requires protocol 29 because it needs the new file-sorting order. (Promoted
2994 from patches dir and enhanced.) (Requires protocol 29.)
2996 - Added the `--remove-sent-files` option, which lets you move files between
2999 - The hostname in HOST:PATH or HOST::PATH may now be an IPv6 literal enclosed
3000 in '[' and ']' (e.g. `[::1]`). (We already allowed IPv6 literals in the
3001 rsync://HOST:PORT/PATH format.)
3003 - When rsync recurses to build the file list, it no longer keeps open one or
3004 more directory handles from the dir's parent dirs.
3006 - When building under windows, the default for `--daemon` is now to avoid
3007 detaching, requiring the new `--detach` option to force rsync to detach.
3009 - The `--dry-run` option can now be combined with either `--write-batch` or
3010 `--read-batch`, allowing you to run a do-nothing test command to see what
3011 would happen without `--dry-run`.
3013 - The daemon's `read only` config item now sets an internal `read_only`
3014 variable that makes extra sure that no write/delete calls on the read-only
3017 - The log-format % escapes can now have a numeric field width in between the %
3018 and the escape letter (e.g. `%-40n %08p`).
3020 - Improved the option descriptions in the `--help` text.
3024 - Added atomic-rsync to the support dir: a perl script that will transfer some
3025 files using rsync, and then move the updated files into place all at once at
3026 the end of the transfer. Only works when pulling, and uses `--link-dest` and
3027 a parallel hierarchy of files to effect its update.
3029 - Added mnt-excl to the support dir: a perl script that takes the /proc/mounts
3030 file and translates it into a set of excludes that will exclude all mount
3031 points (even mapped mounts to the same disk). The excludes are made relative
3032 to the specified source dir and properly anchored.
3034 - Added savetransfer.c to the support dir: a C program that can make a copy of
3035 all the data that flows over the wire. This lets you test for data
3036 corruption (by saving the data on both the sending side and the receiving
3037 side) and provides one way to debug a protocol error.
3039 - Added rrsync to the support dir: this is an updated version of Joe Smith's
3040 restricted rsync perl script. This helps to ensure that only certain rsync
3041 commands can be run by an ssh invocation.
3045 - Added better checking of the checksum-header values that come over the
3048 - Merged a variety of file-deleting functions into a single function so that
3049 it is easier to maintain.
3051 - Improved the type of some variables (particularly blocksize vars) for
3052 consistency and proper size.
3054 - Got rid of the uint64 type (which we didn't need).
3056 - Use a slightly more compatible set of core #include directives.
3058 - Defined int32 in a way that ensures that the build dies if we can't find a
3059 variable with at least 32 bits.
3061 ### PROTOCOL DIFFERENCES FOR VERSION 29:
3063 - A 16-bit flag-word is transmitted after every file-list index. This
3064 indicates what is changing between the sender and the receiver. The
3065 generator now transmits an index and a flag-word to indicate when dirs and
3066 symlinks have changed (instead of producing a message), which makes the
3067 outputting of the information more consistent and less prone to screen
3068 corruption (because the local receiver/sender is now outputting all the
3069 file-change info messages).
3071 - If a file is being hard-linked, the `ITEM_XNAME_FOLLOWS` bit is enabled in
3072 the flag-word and the name of the file that was linked immediately follows
3073 in vstring format (see below).
3075 - If a file is being transferred with an alternate-basis file, the
3076 `ITEM_BASIS_TYPE_FOLLOWS` bit is enabled in the flag-word and a single byte
3077 follows, indicating what type of basis file was chosen. If that indicates
3078 that a fuzzy-match was selected, the `ITEM_XNAME_FOLLOWS` bit is set in the
3079 flag-word and the name of the match in vstring format follows the basis
3080 byte. A vstring is a variable length string that has its size written prior
3081 to the string, and no terminating null. If the string is from 1-127 bytes,
3082 the length is a single byte. If it is from 128-32767 bytes, the length is
3083 written as ((len >> 8) | 0x80) followed by (len % 0x100).
3085 - The sending of exclude names is done using filter-rule syntax. This means
3086 that all names have a prefixed rule indicator, even excludes (which used to
3087 be sent as a bare pattern, when possible). The `-C` option will include the
3088 per-dir .cvsignore merge file in the list of filter rules so it is
3089 positioned correctly (unlike in some older transfer scenarios).
3091 - Rsync sorts the filename list in a different way: it sorts the subdir names
3092 after the non-subdir names for each dir's contents, and it always puts a
3093 dir's contents immediately after the dir's name in the list. (Previously an
3094 item named `foo.txt` would sort in between directory `foo/` and `foo/bar`.)
3096 - When talking to a protocol 29 rsync daemon, a list-only request is able to
3097 note this before the options are sent over the wire and the new
3098 `--list-only` option is included in the options.
3100 - When the `--stats` bytes are sent over the wire (or stored in a batch), they
3101 now include two elapsed-time values: one for how long it took to build the
3102 file-list, and one for how long it took to send it over the wire (each
3103 expressed in thousandths of a second).
3105 - When `--delete-excluded` is specified with some filter rules (AKA excludes),
3106 a client sender will now initiate a send of the rules to the receiver (older
3107 protocols used to omit the sending of excludes in this situation since there
3108 were no receiver-specific rules that survived `--delete-excluded` back
3109 then). Note that, as with all the filter-list sending, only items that are
3110 significant to the other side will actually be sent over the wire, so the
3111 filter-rule list that is sent in this scenario is often empty.
3113 - An index equal to the file-list count is sent as a keep-alive packet from
3114 the generator to the sender, which then forwards it on to the receiver. This
3115 normally invalid index is only a valid keep-alive packet if the 16-bit
3116 flag-word that follows it contains a single bit (`ITEM_IS_NEW`, which is
3117 normally an illegal flag to appear alone).
3119 - A protocol-29 batch file includes a bit for the setting of the `--dirs`
3120 option and for the setting of the `--compress` option. Also, the shell
3121 script created by `--write-batch` will use the `--filter` option instead of
3122 `--exclude-from` to capture any filter rules.
3126 - Handle an operating system that use mkdev() in place of makedev().
3128 - Improved configure to better handle cross-compiling.
3130 ------------------------------------------------------------------------------
3131 <a name="2.6.3"></a>
3133 # NEWS for rsync 2.6.3 (30 Sep 2004)
3135 Protocol: 28 (unchanged)
3137 ## Changes since 2.6.2:
3141 - A bug in the `sanitize_path` routine (which affects a non-chrooted rsync
3142 daemon) could allow a user to craft a pathname that would get transformed
3143 into an absolute path for certain options (but not for file-transfer names).
3144 If you're running an rsync daemon with chroot disabled, **please upgrade**,
3145 ESPECIALLY if the user privs you run rsync under is anything above `nobody`.
3147 OUTPUT CHANGES (ATTN: those using a script to parse the verbose output):
3149 - Please note that the 2-line footer (output when verbose) now uses the term
3150 `sent` instead of `wrote` and `received` instead of `read`. If you are not
3151 parsing the numeric values out of this footer, a script would be better off
3152 using the empty line prior to the footer as the indicator that the verbose
3155 - The output from the `--stats` option was similarly affected to change
3156 `written` to `sent` and `read` to `received`.
3158 - Rsync ensures that a filename that contains a newline gets mentioned with
3159 each newline transformed into a question mark (which prevents a filename
3160 from causing an empty line to be output).
3162 - The `backed up ...` message that is output when at least 2 `--verbose`
3163 options are specified is now the same both with and without the
3164 `--backup-dir` option.
3168 - Fixed a crash bug that might appear when `--delete` was used and multiple
3169 source directories were specified.
3171 - Fixed a 32-bit truncation of the file length when generating the checksums.
3173 - The `--backup` code no longer attempts to create some directories over and
3174 over again (generating warnings along the way).
3176 - Fixed a bug in the reading of the secrets file (by the daemon) and the
3177 password file (by the client): the files no longer need to be terminated by
3178 a newline for their content to be read in.
3180 - If a file has a read error on the sending side or the reconstructed data
3181 doesn't match the expected checksum (perhaps due to the basis file changing
3182 during the transfer), the receiver will no longer retain the resulting file
3183 unless the `--partial` option was specified. (Note: for the read-error
3184 detection to work, neither side can be older than 2.6.3 -- older receivers
3185 will always retain the file, and older senders don't tell the receiver that
3186 the file had a read error.)
3188 - If a file gets resent in a single transfer and the `--backup` option is
3189 enabled, rsync no longer performs a duplicate backup (it used to overwrite
3190 the original file in the backup area).
3192 - Files specified in the daemon's `exclude` or `exclude from` config items are
3193 now excluded from being uploaded (assuming that the module allows uploading
3194 at all) in addition to the old download exclusion.
3196 - Got rid of a potential hang in the receiver when near the end of a phase.
3198 - When using `--backup` without a `--backup-dir`, rsync no longer preserves
3199 the modify time on directories. This avoids confusing NFS.
3201 - When `--copy-links` (`-L`) is specified, we now output a separate error for
3202 a symlink that has no referent instead of claiming that a file `vanished`.
3204 - The `--copy-links` (`-L`) option no longer has the side-effect of telling
3205 the receiving side to follow symlinks. See the `--keep-dirlinks` option
3206 (mentioned below) for a way to specify that behavior.
3208 - Error messages from the daemon server's option-parsing (such as refused
3209 options) are now successfully transferred back to the client (the server
3210 used to fail to send the message because the socket wasn't in the right
3211 state for the message to get through).
3213 - Most transfer errors that occur during a daemon transfer are now returned to
3214 the user in addition to being logged (some messages are intended to be
3215 daemon-only and are not affected by this).
3217 - Fixed a bug in the daemon authentication code when using one of the
3218 batch-processing options.
3220 - We try to work around some buggy IPv6 implementations that fail to implement
3221 `IPV6_V6ONLY`. This should fix the `address in use` error that some daemons
3222 get when running on an OS with a buggy IPv6 implementation. Also, if the new
3223 code gets this error, we might suggest that the user specify `--ipv4` or
3224 `--ipv6` (if we think it will help).
3226 - When the remote rsync dies, make a better effort to recover any error
3227 messages it may have sent before dying (the local rsync used to just die
3228 with a socket-write error).
3230 - When using `--delete` and a `--backup-dir` that contains files that are
3231 hard-linked to their destination equivalents, rsync now makes sure that
3232 removed files really get removed (avoids a really weird rename() behavior).
3234 - Avoid a bogus run-time complaint about a lack of 64-bit integers when the
3235 int64 type is defined as an `off_t` and it actually has 64-bits.
3237 - Added a configure check for open64() without mkstemp64() so that we can
3238 avoid using mkstemp() when such a combination is encountered. This bypasses
3239 a problem writing out large temp files on OSes such as AIX and HP-UX.
3241 - Fixed an age-old crash problem with `--read-batch` on a local copy (rsync
3242 was improperly assuming `--whole-file` for the local copy).
3244 - When `--dry-run` (`-n`) is used and the destination directory does not
3245 exist, rsync now produces a correct report of files that would be sent
3246 instead of dying with a chdir() error.
3248 - Fixed a bug that could cause a slow-to-connect rsync daemon to die with an
3249 error instead of waiting for the connection to finish.
3251 - Fixed an ssh interaction that could cause output to be lost when the user
3252 chose to combine the output of rsync's stdout and stderr (e.g. using the
3255 - Fixed an option-parsing bug when `--files-from` got passed to a daemon.
3259 - Added the `--partial-dir=DIR` option that lets you specify where to
3260 (temporarily) put a partially transferred file (instead of over- writing the
3261 destination file). E.g. `--partial-dir=.rsync-partial` Also added support
3262 for the `RSYNC_PARTIAL_DIR` environment variable that, when found,
3263 transforms a regular `--partial` option (such as the convenient `-P` option)
3264 into one that also specifies a directory.
3266 - Added `--keep-dirlinks` (`-K`), which allows you to symlink a directory onto
3267 another partition on the receiving side and have rsync treat it as matching
3268 a normal directory from the sender.
3270 - Added the `--inplace` option that tells rsync to write each destination file
3271 without using a temporary file. The matching of existing data in the
3272 destination file can be severely limited by this, but there are also cases
3273 where this is more efficient (such as appending data). Use only when needed
3274 (see the man page for more details).
3276 - Added the `write only` option for the daemon's config file.
3278 - Added long-option names for `-4` and `-6` (namely `--ipv4` and `--ipv6`) and
3279 documented all these options in the man page.
3281 - Improved the handling of the `--bwlimit` option so that it's less bursty,
3282 more accurate, and works properly over a larger range of values.
3284 - The rsync daemon-over-ssh code now looks for `SSH_CONNECTION` and
3285 `SSH2_CLIENT` in addition to `SSH_CLIENT` to figure out the IP address.
3287 - Added the `--checksum-seed=N` option for advanced users.
3289 - Batch writing/reading has a brand-new implementation that is simpler, fixes
3290 a few weird problems with the old code (such as no longer sprinkling the
3291 batch files into different dirs or even onto different systems), and is much
3292 less intrusive into the code (making it easier to maintain for the future).
3293 The new code generates just one data file instead of three, which makes it
3294 possible to read the batch on stdin via a remote shell. Also, the old
3295 requirement of forcing the same fixed checksum-seed for all batch processing
3298 - If an rsync daemon has a module set with `list = no` (which hides its
3299 presence in the list of available modules), a user that fails to
3300 authenticate gets the same `unknown module` error that they would get if the
3301 module were actually unknown (while still logging the real error to the
3302 daemon's log file). This prevents fishing for module names.
3304 - The daemon's `refuse options` config item now allows you to match option
3305 names using wildcards and/or the single-letter option names.
3307 - Each transferred file now gets its permissions and modified-time updated
3308 before the temp-file gets moved into place. Previously, the finished file
3309 would have a very brief window where its permissions disallowed all group
3312 - Added the ability to parse a literal IPv6 address in an `rsync:` URL (e.g.
3313 rsync://[2001:638:500:101::21]:873/module/dir).
3315 - The daemon's wildcard expanding code can now handle more than 1000 filenames
3316 (it's now limited by memory instead of having a hard-wired limit).
3320 - Some cleanup in the exclude code has saved some per-exclude memory and made
3321 the code easier to maintain.
3323 - Improved the argv-overflow checking for a remote command that has a lot of
3326 - Use rsyserr() in the various places that were still calling rprintf() with
3327 strerror() as an arg.
3329 - If an rsync daemon is listening on multiple sockets (to handle both IPv4 and
3330 IPv6 to a single port), we now close all the unneeded file handles after we
3331 accept a connection (we used to close just one of them).
3333 - Optimized the handling of larger block sizes (rsync used to slow to a crawl
3334 if the block size got too large).
3336 - Optimized away a loop in `hash_search()`.
3338 - Some improvements to the `sanitize_path()` and `clean_fname()` functions
3339 makes them more efficient and produce better results (while still being
3340 compatible with the file-name cleaning that gets done on both sides when
3341 sending the file-list).
3343 - Got rid of `alloc_sanitize_path()` after adding a destination-buffer arg to
3344 `sanitize_path()` made it possible to put all the former's functionality
3347 - The file-list that is output when at least 4 verbose options are specified
3348 reports the uid value on the sender even when rsync is not running as root
3349 (since we might be sending to a root receiver).
3353 - Added a `gen` target to rebuild most of the generated files, including
3354 configure, config.h.in, the man pages, and proto.h.
3356 - If `make proto` doesn't find some changes in the prototypes, the proto.h
3357 file is left untouched (its time-stamp used to always be updated).
3359 - The variable `$STRIP` (that is optionally set by the install-strip target's
3360 rule) was changed to `$INSTALL_STRIP` because some systems have `$STRIP`
3361 already set in the environment.
3363 - Fixed a build problem when `SUPPORT_HARD_LINKS` isn't defined.
3365 - When cross-compiling, the gettimeofday() function is now assumed to be a
3366 modern version that takes two-args (since we can't test it).
3368 ### DEVELOPER RELATED:
3370 - The scripts in the testsuite dir were cleaned up a bit and a few new tests
3373 - Some new diffs were added to the patches dir, and some accepted ones were
3376 ------------------------------------------------------------------------------
3377 <a name="2.6.2"></a>
3379 # NEWS for rsync 2.6.2 (30 Apr 2004)
3381 Protocol: 28 (unchanged)
3383 ## Changes since 2.6.1:
3387 - Fixed a major bug in the sorting of the filenames when `--relative` is used
3388 for some sources (just sources such as `/` and `/*` were affected). This fix
3389 ensures that we ask for the right file-list item when requesting changes
3392 - Rsync now checks the return value of the close() function to better report
3393 disk-full problems on an NFS file system.
3395 - Restored the old daemon-server behavior of logging error messages rather
3396 than returning them to the user. (A better long-term fix will be sought in
3399 - An obscure uninitialized-variable bug was fixed in the uid/gid code. (This
3400 bug probably had no ill effects.)
3404 - Got rid of the configure check for sys/sysctl.h (it wasn't used and was
3405 causing a problem on some systems). Also improved the
3406 broken-largefile-locking test to try to avoid failure due to an NFS
3409 - Fixed a compile problem on systems that don't define `AI_NUMERICHOST`.
3411 - Fixed a compile problem in the popt source for compilers that don't support
3414 ### DEVELOPER RELATED:
3416 - Improved the testsuite's `merge` test to work on OSF1.
3418 - Two new diffs were added to the patches dir.
3420 ------------------------------------------------------------------------------
3421 <a name="2.6.1"></a>
3423 # NEWS for rsync 2.6.1 (26 Apr 2004)
3425 Protocol: 28 (changed)
3427 ## Changes since 2.6.0:
3431 - Paths sent to an rsync daemon are more thoroughly sanitized when chroot is
3432 not used. If you're running a non-read-only rsync daemon with chroot
3433 disabled, **please upgrade**, ESPECIALLY if the user privs you run rsync
3434 under is anything above `nobody`.
3438 - Lower memory use, more optimal transfer of data over the socket, and lower
3439 CPU usage (see the INTERNAL section for details).
3441 - The `RSYNC_PROXY` environment variable can now contain a `USER:PASS@` prefix
3442 before the `HOST:PORT` information. (Bardur Arantsson)
3444 - The `--progress` output now mentions how far along in the transfer we are,
3445 including both a count of files transferred and a percentage of the total
3446 file-count that we've processed. It also shows better
3447 current-rate-of-transfer and remaining-transfer-time values.
3449 - Documentation changes now attempt to describe some often mis- understood
3450 features more clearly.
3454 - When `-x` (`--one-file-system`) is combined with `-L` (`--copy-links`) or
3455 `--copy-unsafe-links,` no symlinked files are skipped, even if the referent
3456 file is on a different filesystem.
3458 - The `--link-dest` code now works properly for a non-root user when (1) the
3459 UIDs of the source and destination differ and `-o` was specified, or (2)
3460 when the group of the source can't be used on the destination and `-g` was
3463 - Fixed a bug in the handling of `-H` (hard-links) that might cause the
3464 expanded PATH/NAME value of the current item to get overwritten (due to an
3465 expanded-name caching bug).
3467 - We now reset the `new data has been sent` flag at the start of each file we
3468 send. This makes sure that an interrupted transfer with the `--partial`
3469 option set doesn't keep a shorter temp file than the current basis file when
3470 no new data has been transferred over the wire for that file.
3472 - Fixed a byte-order problem in `--batch-mode` on big-endian machines. (Jay
3475 - When using `--cvs-exclude`, the exclude items we get from a per-directory's
3476 .cvsignore file once again only affect that one directory (not all following
3477 directories too). The items are also now properly word-split and parsed
3478 without any +/- prefix parsing.
3480 - When specifying the USER@HOST: prefix for a file, the USER part can now
3481 contain an '@', if needed (i.e. the last '@' is used to find the HOST, not
3484 - Fixed some bugs in the handling of group IDs for non-root users: (1) It
3485 properly handles a group that the sender didn't have a name for (it would
3486 previously skip changing the group on any files in that group). (2) If
3487 `--numeric-ids` is used, rsync no longer attempts to set groups that the
3488 user doesn't have the permission to set.
3490 - Fixed the `refuse options` setting in the rsyncd.conf file.
3492 - Improved the `-x` (`--one-file-system`) flag's handling of any mount- point
3493 directories we encounter. It is both more optimal (in that it no longer does
3494 a useless scan of the contents of the mount- point dirs) and also fixes a
3495 bug where a remapped mount of the original filesystem could get discovered
3496 in a subdir we should be ignoring.
3498 - Rsync no longer discards a double-slash at the start of a filename when
3499 trying to open the file. It also no longer constructs names that start with
3500 a double slash (unless the user supplied them).
3502 - Path-specifying options to a daemon should now work the same with or without
3503 chroot turned on. Previously, such a option (such as `--link-dest`) would
3504 get its absolute path munged into a relative one if chroot was not on,
3505 making that setting fairly useless. Rsync now transforms the path into one
3506 that is based on the module's base dir when chroot is not enabled.
3508 - Fixed a compatibility problem interacting with older rsync versions that
3509 might send us an empty `--suffix` value without telling us that
3510 `--backup-dir` was specified.
3512 - The `hosts allow` option for a daemon-over-remote-shell process now has
3513 improved support for IPv6 addresses and a fix for systems that have a length
3514 field in their socket structs.
3516 - Fixed the ability to request an empty backup `--suffix` when sending files
3519 - Fixed an option-parsing bug when `--files-from` was sent to a server sender.
3523 - Most of the I/O is now buffered, which results in a pretty large speedup
3524 when running under MS Windows. (Craig Barratt)
3526 - Optimizations to the name-handling/comparing code have made some significant
3527 reductions in user-CPU time for large file sets.
3529 - Some cleanup of the variable types make the code more consistent.
3531 - Reduced memory requirements of hard link preservation. (J.W. Schultz)
3533 - Implemented a new algorithm for hard-link handling that speeds up the code
3534 significantly. (J.W. Schultz and Wayne Davison)
3536 - The `--hard-link` option now uses the first existing file in the group of
3537 linked files as the basis for the transfer. This prevents the sub-optimal
3538 transfer of a file's data when a new hardlink is added on the sending side
3539 and it sorts alphabetically earlier in the list than the files that are
3540 already present on the receiving side.
3542 - Dropped support for protocol versions less than 20 (2.3.0 released 15 Mar
3543 1999) and activated warnings for protocols less than 25 (2.5.0 released 23
3544 Aug 2001). (Wayne Davison and J.W. Schultz, severally)
3546 - More optimal data transmission for `--hard-links` (protocol 28).
3548 - More optimal data transmission for `--checksum` (protocol 28).
3550 - Less memory is used when `--checksum` is specified.
3552 - Less memory is used in the file list (a per-file savings).
3554 - The generator is now better about not modifying the file list during the
3555 transfer in order to avoid a copy-on-write memory bifurcation (on systems
3556 where fork() uses shared memory). Previously, rsync's shared memory would
3557 slowly become unshared, resulting in real memory usage nearly doubling on
3558 the receiving side by the end of the transfer. Now, as long as permissions
3559 are being preserved, the shared memory should remain that way for the entire
3562 - Changed hardlink info and `file_struct` + strings to use allocation pools.
3563 This reduces memory use for large file-sets and permits freeing memory to
3564 the OS. (J.W. Schultz)
3566 - The 2 pipes used between the receiver and generator processes (which are
3567 forked on the same machine) were reduced to 1 pipe and the protocol improved
3568 so that (1) it is now impossible to have the `redo` pipe fill up and hang
3569 rsync, and (2) trailing messages from the receiver don't get lost on their
3570 way through the generator over to the sender (which mainly affected
3571 hard-link messages and verbose `--stats` output).
3573 - Improved the internal uid/gid code to be more portable and a little more
3576 - The device numbers sent when using `--devices` are now sent as separate
3577 major/minor values with 32-bit accuracy (protocol 28). Previously, the
3578 copied devices were sent as a single 32-bit number. This will make
3579 inter-operation of 64-bit binaries more compatible with their 32-bit
3580 brethren (with both ends of the connection are using protocol 28). Note that
3581 optimizations in the binary protocol for sending the device numbers often
3582 results in fewer bytes being used than before, even though more precision is
3585 - Some cleanup of the exclude/include structures and its code made things
3586 clearer (internally), simpler, and more efficient.
3588 - The reading & writing of the file-list in batch-mode is now handled by the
3589 same code that sends & receives the list over the wire. This makes it much
3590 easier to maintain. (Note that the batch code is still considered to be
3595 - The configure script now accepts `--with-rsyncd-conf=PATH` to override the
3596 default value of the /etc/rsyncd.conf file.
3598 - Fixed configure bug when running `./configure --disable-ipv6`.
3600 - Fixed compilation problem on Tru64 Unix (having to do with `sockaddr.sa_len`
3601 and `sockaddr.sin_len`).
3603 ### DEVELOPER RELATED:
3605 - Fixed `make test` bug when build dir is not the source dir.
3607 - Added a couple extra diffs in the `patches` dir, removed the ones that got
3608 applied, and rebuilt the rest.
3610 ------------------------------------------------------------------------------
3611 <a name="2.6.0"></a>
3613 # NEWS for rsync 2.6.0 (1 Jan 2004)
3615 Protocol: 27 (changed)
3617 ## Changes since 2.5.7:
3621 - `ssh` is now the default remote shell for rsync. If you want to change this,
3622 configure like this: `./configure --with-rsh=rsh`.
3624 - Added `--files-from`, `--no-relative`, `--no-implied-dirs`, and `--from0`.
3625 Note that `--from0` affects the line-ending character for all the files read
3626 by the `--*-from` options. (Wayne Davison)
3628 - Length of csum2 is now per-file starting with protocol version
3631 - Per-file dynamic block size is now sqrt(file length). The per-file checksum
3632 size is determined according to an algorithm provided by Donovan Baarda
3633 which reduces the probability of rsync algorithm corrupting data and falling
3634 back using the whole md4 checksums. (J.W. Schultz, Donovan Baarda)
3636 - The `--stats` option no longer includes the (debug) malloc summary unless
3637 the verbose option was specified at least twice.
3639 - Added a new error/warning code for when files vanish from the sending side.
3640 Made vanished source files not interfere with the file-deletion pass when
3641 `--delete-after` was specified.
3643 - Various trailing-info sections are now preceded by a newline.
3647 - Fixed several exclude/include matching bugs when using wild-cards. This has
3648 a several user-visible effects, all of which make the matching more
3649 consistent and intuitive. This should hopefully not cause anyone problems
3650 since it makes the matching work more like what people are expecting. (Wayne
3653 - A pattern with a `**` no longer causes a `*` to match slashes. For example,
3654 with `/*/foo/**`, `foo` must be 2 levels deep. [If your string has BOTH `*`
3655 and `**` wildcards, changing the `*` wildcards to `**` will provide the old
3656 behavior in all versions.]
3658 - `**/foo` now matches at the base of the transfer (like /foo does). [Use
3659 `/**/foo` to get the old behavior in all versions.]
3661 - A non-anchored wildcard term floats to match beyond the base of the
3662 transfer. E.g. `CVS/R*` matches at the end of the path, just like the
3663 non-wildcard term `CVS/Root` does. [Use `/CVS/R*` to get the old behavior in
3666 - Including a `**` in the match term causes it to be matched against the
3667 entire path, not just the name portion, even if there aren't any interior
3668 slashes in the term. E.g. `foo**bar` would exclude `/path/foo-bar` (just
3669 like before) as well as `/foo-path/baz-bar` (unlike before). [Use `foo*bar`
3670 to get the old behavior in all versions.]
3672 - The exclude list specified in the daemon's config file is now properly
3673 applied to the pulled items no matter how deep the user's file-args are in
3674 the source tree. (Wayne Davison)
3676 - For protocol version >= 27, `mdfour_tail()` is called when the block size
3677 (including `checksum_seed`) is a multiple of 64. Previously it was not
3678 called, giving the wrong MD4 checksum. (Craig Barratt)
3680 - For protocol version >= 27, a 64 bit bit counter is used in mdfour.c as
3681 required by the RFC. Previously only a 32 bit bit counter was used, causing
3682 incorrect MD4 file checksums for file sizes >= 512MB - 4. (Craig Barratt)
3684 - Fixed a crash bug when interacting with older rsync versions and multiple
3685 files of the same name are destined for the same dir. (Wayne Davison)
3687 - Keep tmp names from overflowing MAXPATHLEN.
3689 - Make `--link-dest` honor the absence of `-p`, `-o`, and `-g`.
3691 - Made rsync treat a trailing slash in the destination in a more consistent
3694 - Fixed file I/O error detection. (John Van Essen)
3696 - Fixed bogus `malformed address {hostname}` message in rsyncd log when
3697 checking IP address against hostnames from `hosts allow` and `hosts deny`
3698 parameters in config file.
3700 - Print heap statistics when verbose >= 2 instead of when >= 1.
3702 - Fixed a compression (`-z`) bug when syncing a mostly-matching file that
3703 contains already-compressed data. (Yasuoka Masahiko and Wayne Davison)
3705 - Fixed a bug in the `--backup` code that could cause deleted files to not get
3708 - When the backup code makes new directories, create them with mode 0700
3709 instead of 0755 (since the directory permissions in the backup tree are not
3710 yet copied from the main tree).
3712 - Call setgroups() in a more portable manner.
3714 - Improved file-related error messages to better indicate exactly what
3715 pathname failed. (Wayne Davison)
3717 - Fixed some bugs in the handling of `--delete` and `--exclude` when using the
3718 `--relative` (`-R`) option. (Wayne Davison)
3720 - Fixed bug that prevented regular files from replacing special files and
3721 caused a directory in `--link-dest` or `--compare-dest` to block the
3722 creation of a file with the same path. A directory still cannot be replaced
3723 by a regular file unless `--delete` specified. (J.W. Schultz)
3725 - Detect and report when open or opendir succeed but read and readdir fail
3726 caused by network filesystem issues and truncated files. (David Norwood,
3727 Michael Brown, J.W. Schultz)
3729 - Added a fix that should give ssh time to restore the tty settings if the
3730 user presses Ctrl-C at an ssh password prompt.
3734 - Eliminated vestigial support for old versions that we stopped supporting.
3737 - Simplified some of the option-parsing code. (Wayne Davison)
3739 - Some cleanup made to the exclude code, as well as some new defines added to
3740 enhance readability. (Wayne Davison)
3742 - Changed the protocol-version code so that it can interact at a lower
3743 protocol level than the maximum supported by both sides. Added an
3744 undocumented option, `--protocol=N`, to force the value we advertise to the
3745 other side (primarily for testing purposes). (Wayne Davison)
3747 ------------------------------------------------------------------------------
3748 <a name="2.5.7"></a>
3750 # NEWS for rsync 2.5.7 (4 Dec 2003)
3752 Protocol: 26 (unchanged)
3754 ## Changes since 2.5.6:
3758 - Fix buffer handling bugs. (Andrew Tridgell, Martin Pool, Paul Russell,
3761 ------------------------------------------------------------------------------
3762 <a name="2.5.6"></a>
3764 # NEWS for rsync 2.5.6, aka "the dwd-between-jobs release" (26 Jan 2003)
3766 Protocol: 26 (unchanged)
3768 ## Changes since 2.5.5:
3772 - The `--delete-after` option now implies `--delete`. (Wayne Davison)
3774 - The `--suffix` option can now be used with `--backup-dir`. (Michael
3777 - Combining `::` syntax with the `--rsh`/`-e` option now uses the specified
3778 remote-shell as a transport to talk to a (newly-spawned) server-daemon. This
3779 allows someone to use daemon features, such as modules, over a secure
3780 protocol, such as ssh. (JD Paul)
3782 - The rsync:// syntax for daemon connections is now accepted in the
3785 - If the file name given to `--include-from` or `--exclude-from` is `-`, rsync
3786 will read from standard input. (J.W. Schultz)
3788 - New option `--link-dest` which is like `--compare-dest` except that
3789 unchanged files are hard-linked in to the destination directory. (J.W.
3792 - Don't report an error if an excluded file disappears during an rsync run.
3793 (Eugene Chupriyanov and Bo Kersey)
3795 - Added .svn to `--cvs-exclude` list to support subversion. (Jon Middleton)
3797 - Properly support IPv6 addresses in the rsyncd.conf `hosts allow` and `hosts
3798 deny` fields. (Hideaki Yoshifuji)
3800 - Changed exclude file handling to permit DOS or MAC style line terminations.
3803 - Ignore errors from chmod when `-p`/`-a`/`--preserve-perms` is not set.
3808 - Fix `forward name lookup failed` errors on AIX 4.3.3. (John L. Allen, Martin
3811 - Generate each file's rolling-checksum data as we send it, not in a separate
3812 (memory-eating) pass before hand. This prevents timeout errors on really
3813 large files. (Stefan Nehlsen)
3815 - Fix compilation on Tru64. (Albert Chin, Zoong Pham)
3817 - Better handling of some client-server errors. (Martin Pool)
3819 - Fixed a crash that would occur when sending a list of files that contains a
3820 duplicate name (if it sorts to the end of the file list) and using
3821 `--delete`. (Wayne Davison)
3823 - Fixed the file-name duplicate-removal code when dealing with multiple dups
3824 in a row. (Wayne Davison)
3826 - Fixed a bug that caused rsync to lose the exit status of its child processes
3827 and sometimes return an exit code of 0 instead of showing an error. (David
3828 R. Staples, Dave Dykstra)
3830 - Fixed bug in `--copy-unsafe-links` that caused it to be completely broken.
3833 - Prevent infinite recursion in cleanup code under certain circumstances.
3834 (Sviatoslav Sviridov and Marc Espie)
3836 - Fixed a bug that prevented rsync from creating intervening directories when
3837 `--relative-paths`/`-R` is set. (Craig Barratt)
3839 - Prevent `Connection reset by peer` messages from Cygwin. (Randy O'Meara)
3843 - Many code cleanups and improved internal documentation. (Martin Pool, Nelson
3846 - Portability fixes. (Dave Dykstra and Wayne Davison)
3848 - More test cases. (Martin Pool)
3850 - Some test-case fixes. (Brian Poole, Wayne Davison)
3852 - Updated included popt to the latest vendor drop, version 1.6.4. (Jos
3855 - Updated config.guess and config.sub to latest versions; this means rsync
3856 should build on more platforms. (Paul Green)
3858 ------------------------------------------------------------------------------
3859 <a name="2.5.5"></a>
3861 # NEWS for rsync 2.5.5, aka Snowy River (2 Apr 2002)
3863 Protocol: 26 (unchanged)
3865 ## Changes since 2.5.4:
3869 - With `--progress`, when a transfer is complete show the time taken;
3870 otherwise show expected time to complete. (Cameron Simpson)
3872 - Make `make install-strip` works properly, and `make install` accepts a
3873 DESTDIR variable for help in building binary packages. (Peter
3874 Breitenlohner, Greg Louis)
3876 - If configured with `--enable-maintainer-mode`, then on receipt of a fatal
3877 signal rsync will try to open an xterm running gdb, similarly to Samba's
3878 `panic action` or GNOME's bug-buddy. (Martin Pool)
3882 - Fix situation where failure to fork (e.g. because out of process slots)
3883 would cause rsync to kill all processes owned by the current user. Yes,
3884 really! (Paul Haas, Martin Pool)
3886 - Fix test suite on Solaris. (Jos Backus, Martin Pool)
3888 - Fix minor memory leak in socket code. (Dave Dykstra, Martin Pool.)
3890 - Fix `--whole-file` problem that caused it to be the default even for remote
3891 connections. (Martin Pool, Frank Schulz)
3893 - Work around bug in Mac OS X mkdir(2), which cannot handle trailing slashes.
3894 <http://www.opensource.apple.com/bugs/X/BSD%20Kernel/2734739.html> (Martin
3897 - Improved network error handling. (Greg A. Woods)
3899 ------------------------------------------------------------------------------
3900 <a name="2.5.4"></a>
3902 # NEWS for rsync 2.5.4, aka "Imitation lizard skin" (13 Mar 2002)
3904 Protocol: 26 (unchanged)
3906 ## Changes since 2.5.3:
3910 - Additional fix for zlib double-free bug. (Martin Pool, Andrew Tridgell) (CVE
3915 - Merge in changes from zlib 1.1.3 to zlib 1.1.4. (Jos Backus) (Note that
3916 rsync still uses a custom version of zlib; you can not just link against a
3917 system library. See zlib/README.rsync)
3919 - Additional test cases for `--compress`. (Martin Pool)
3921 ------------------------------------------------------------------------------
3922 <a name="2.5.3"></a>
3924 # NEWS for rsync 2.5.3, aka "Happy 26" (11 Mar 2002)
3926 Protocol: 26 (unchanged)
3928 ## Changes since 2.5.2:
3932 - Make sure that supplementary groups are removed from a server
3933 process after changing uid and gid. (Ethan Benson) (Debian bug
3934 #132272, CVE CAN-2002-0080)
3938 - Fix zlib double-free bug. (Owen Taylor, Mark J Cox) (CVE CAN-2002-0059)
3940 - Fixed problem that in many cases caused the error message unexpected read
3941 size of 0 in `map_ptr` and resulted in the wrong data being copied.
3943 - Fixed compilation errors on some systems caused by the use of `unsigned
3946 - Fixed problem on systems such as Sunos4 that do not support realloc on a
3947 NULL pointer; error was 'out of memory in "flist_expand"'.
3949 - Fix for rsync server processes hanging around after the client unexpectedly
3950 disconnects. (Colin Walters) (Debian bug #128632)
3952 - Cope with BSD systems on which mkdir() will not accept a trailing slash.
3956 - Merge in changes from zlib 1.1.2 to zlib 1.1.3. (Note that rsync still uses
3957 a custom version of zlib; you can not just link against a system library.
3958 See zlib/README.rsync)
3960 - Command to initiate connections is only shown with `-vv`, rather than `-v`
3961 as in 2.5.2. Output from plain `-v` is more similar to what was historically
3962 used so as not to break scripts that try to parse the output.
3964 - Added `--no-whole-file` and `--no-blocking-io` options (Dave Dykstra)
3966 - Made the `--write-batch` and `--read-batch` options actually work and added
3967 documentation in the man page (Jos Backus)
3969 - If the daemon is unable to fork a child to accept a connection, print an
3970 error message. (Colin Walters)
3972 ------------------------------------------------------------------------------
3973 <a name="2.5.2"></a>
3975 # NEWS for rsync 2.5.2 (26 Jan 2002)
3977 Protocol: 26 (changed)
3979 ## Changes since 2.5.1:
3983 - Signedness security patch from Sebastian Krahmer <krahmer@suse.de> -- in
3984 some cases we were not sufficiently careful about reading integers from the
3989 - Fix possible string mangling in log files.
3991 - Fix for setting local address of outgoing sockets.
3993 - Better handling of hardlinks and devices on platforms with 64-bit `dev_t` or
3996 - Name resolution on machines supporting IPv6 is improved.
3998 - Fix for device nodes. (dann frazier) (Debian #129135)
4002 - With `-v`, rsync now shows the command used to initiate an ssh/rsh
4005 - `--statistics` now shows memory heap usage on platforms that support
4008 - "The Ted T'so school of program optimization": make progress visible and
4009 people will think it's faster. (With `--progress`, rsync will show you how
4010 many files it has seen as it builds the `file_list`, giving some indication
4011 that it has not hung.)
4013 - Improvements to batch mode support. This is still experimental but testing
4014 would be welcome. (Jos Backus)
4016 - New `--ignore-existing` option, patch previously distributed with Vipul's
4017 Razor. (Debian #124286)
4019 ------------------------------------------------------------------------------
4020 <a name="2.5.1"></a>
4022 # NEWS for rsync 2.5.1 (3 Jan 2002)
4024 Protocol: 25 (unchanged)
4026 ## Changes since 2.5.0:
4030 - Fix for segfault in `--daemon` mode configuration parser. (Paul Mackerras)
4032 - Correct `string<->address` parsing for both IPv4 and 6. (YOSHIFUJI Hideaki,
4033 SUMIKAWA Munechika and Jun-ichiro `itojun` Hagino)
4035 - Various fixes for IPv6 support. (Dave Dykstra)
4037 - rsync.1 typo fix. (Matt Kraai)
4039 - Test suite typo fixes. (Tom Schmidt)
4041 - rsync.1 grammar and clarity improvements. (Edward Welbourne)
4043 - Correction to ./configure tests for `inet_ntop`. (Jeff Garzik)
4047 - `--progress` and `-P` now show estimated data transfer rate (in a multiple
4048 of bytes/s) and estimated time to completion. (Rik Faith)
4050 - `--no-detach` option, required to run as a W32 service and also useful when
4051 running on Unix under daemontools, AIX's SRC, or a debugger. (Max Bowsher,
4054 - Clearer error messages for some conditions.
4056 ------------------------------------------------------------------------------
4057 <a name="2.5.0"></a>
4059 # NEWS for rsync 2.5.0 (30 Nov 2001)
4061 Protocol: 25 (changed)
4063 ## Changes since 2.4.6:
4067 - Martin Pool <mbp@samba.org> is now a co-maintainer.
4071 - Support for LSB-compliant packaging <http://www.linuxbase.org/>
4073 - Shell wildcards are allowed in `auth users` lines.
4075 - Merged UNC rsync+ patch to support creation of standalone patch sets. By
4076 Bert J. Dempsey and Debra Weiss, updated by Jos Backus.
4077 <http://www.ils.unc.edu/i2dsi/unc_rsync+.html>
4079 - IPv6 support based on a patch from KAME.net, on systems including modern
4080 versions of Linux, Solaris, and HP-UX. Also includes IPv6 compatibility
4081 functions for old OSs by the Internet Software Consortium, Paul Vixie, the
4082 OpenSSH portability project, and OpenBSD.
4086 - Include/exclude cluestick: with `-vv`, print out whether files are included
4087 or excluded and why.
4089 - Many error messages have more friendly explanations and more details.
4091 - Manual page improvements plus scanty protocol documentation.
4093 - When running as `--daemon` in the background and using a `log file`
4094 rsyncd.conf directive, close the log file every time it is open when going
4095 to sleep on the socket. This allows the log file to get cleaned out by
4098 - Change to using libpopt rather than getopt for processing options. This
4099 makes the code cleaner and the behaviour more consistent across platforms.
4100 popt is included and built if not installed on the platform.
4102 - More details in `--version`, including note about whether 64-bit files,
4103 symlinks and hardlinks are supported.
4105 - MD4 code may use less CPU cycles.
4107 - Use mkstemp on systems where it is secure. If we use mktemp, explain that we
4108 do it in a secure way.
4110 - `--whole-file` is the default when source and target are on the local
4115 - Fix for various bugs causing rsync to hang.
4117 - Attempt to fix Large File Summit support on AIX.
4119 - Attempt to fix error handling lockup bug.
4121 - Give a non-0 exit code if **any** of the files we have been asked to
4122 transfer fail to transfer.
4124 - For log messages containing ridiculously long strings that might overflow a
4125 buffer rsync no longer aborts, but rather prints an ellipsis at the end of
4126 the string. (Patch from Ed Santiago.)
4130 - Improved support for UNICOS (tested on Cray T3E and Cray SV1)
4132 - autoconf2.52 (or later) is now required to rebuild the autoconf scripts. It
4133 is not required to simply build rsync.
4135 - Platforms thought to work in this release:
4137 - Cray SV1 UNICOS 10.0.0.8 cc
4138 - Debian Linux 2.2 UltraSparc gcc
4139 - Debian Linux testing/unstable ARM gcc
4140 - FreeBSD 3.3-RELEASE i386 cc
4141 - FreeBSD 4.1.1-RELEASE i386 cc
4142 - FreeBSD 4.3-STABLE i386 cc
4143 - HP PA-RISC HP-UX 10.20 gcc
4144 - HP PA-RISC HP-UX 11.11 cc
4147 - Mac OS X PPC (--disable-ipv6) cc
4148 - NetBSD 1.5 i386 gcc
4149 - NetBSD Current i386 cc
4150 - OpenBSD 2.5 Sparc gcc
4151 - OpenBSD 2.9 i386 cc
4152 - OpenBSD Current i386 cc
4153 - RedHat 6.2 i386 gcc
4154 - RedHat 6.2 i386 insure++
4155 - RedHat 7.0 i386 gcc
4156 - RedHat 7.1 i386 (Kernel 2.4.10) gcc
4157 - Slackware 8.0 i686 (Kernel 2.4.10)
4158 - Solaris 8 UltraSparc cc
4159 - Solaris 8 UltraSparc gcc
4160 - Solaris 8 i386 gcc
4161 - SuSE 7.1 i386 gcc2.95.2
4162 - SuSE 7.1 ppc gcc2.95.2
4163 - i386-pc-sco3.2v5.0.5 cc
4164 - i386-pc-sco3.2v5.0.5 gcc
4165 - powerpc-ibm-aix4.3.3.0 cc
4166 - i686-unknown-sysv5UnixWare7.1.0 gcc
4167 - i686-unknown-sysv5UnixWare7.1.0 cc
4171 - The existing test.sh script by Phil Hands has been merged into a
4172 test framework that works from both `make check` and the Samba
4175 ------------------------------------------------------------------------------
4177 ## Partial Protocol History
4179 | RELEASE DATE | VER. | DATE OF COMMIT\* | PROTOCOL |
4180 |--------------|--------|------------------|-------------|
4181 | ?? Jun 2020 | 3.2.2 | | 31 |
4182 | 22 Jun 2020 | 3.2.1 | | 31 |
4183 | 19 Jun 2020 | 3.2.0 | | 31 |
4184 | 28 Jan 2018 | 3.1.3 | | 31 |
4185 | 21 Dec 2015 | 3.1.2 | | 31 |
4186 | 22 Jun 2014 | 3.1.1 | | 31 |
4187 | 28 Sep 2013 | 3.1.0 | 31 Aug 2008 | 31 |
4188 | 23 Sep 2011 | 3.0.9 | | 30 |
4189 | 26 Mar 2011 | 3.0.8 | | 30 |
4190 | 31 Dec 2009 | 3.0.7 | | 30 |
4191 | 08 May 2009 | 3.0.6 | | 30 |
4192 | 28 Dec 2008 | 3.0.5 | | 30 |
4193 | 06 Sep 2008 | 3.0.4 | | 30 |
4194 | 29 Jun 2008 | 3.0.3 | | 30 |
4195 | 08 Apr 2008 | 3.0.2 | | 30 |
4196 | 03 Apr 2008 | 3.0.1 | | 30 |
4197 | 01 Mar 2008 | 3.0.0 | 11 Nov 2006 | 30 |
4198 | 06 Nov 2006 | 2.6.9 | | 29 |
4199 | 22 Apr 2006 | 2.6.8 | | 29 |
4200 | 11 Mar 2006 | 2.6.7 | | 29 |
4201 | 28 Jul 2005 | 2.6.6 | | 29 |
4202 | 01 Jun 2005 | 2.6.5 | | 29 |
4203 | 30 Mar 2005 | 2.6.4 | 17 Jan 2005 | 29 |
4204 | 30 Sep 2004 | 2.6.3 | | 28 |
4205 | 30 Apr 2004 | 2.6.2 | | 28 |
4206 | 26 Apr 2004 | 2.6.1 | 08 Jan 2004 | 28 |
4207 | 01 Jan 2004 | 2.6.0 | 10 Apr 2003 | 27 (MAX=40) |
4208 | 04 Dec 2003 | 2.5.7 | | 26 |
4209 | 26 Jan 2003 | 2.5.6 | | 26 |
4210 | 02 Apr 2002 | 2.5.5 | | 26 |
4211 | 13 Mar 2002 | 2.5.4 | | 26 |
4212 | 11 Mar 2002 | 2.5.3 | | 26 |
4213 | 26 Jan 2002 | 2.5.2 | 11 Jan 2002 | 26 |
4214 | 03 Jan 2002 | 2.5.1 | | 25 |
4215 | 30 Nov 2001 | 2.5.0 | 23 Aug 2001 | 25 |
4216 | 06 Sep 2000 | 2.4.6 | | 24 |
4217 | 19 Aug 2000 | 2.4.5 | | 24 |
4218 | 29 Jul 2000 | 2.4.4 | | 24 |
4219 | 09 Apr 2000 | 2.4.3 | | 24 |
4220 | 30 Mar 2000 | 2.4.2 | | 24 |
4221 | 30 Jan 2000 | 2.4.1 | 29 Jan 2000 | 24 |
4222 | 29 Jan 2000 | 2.4.0 | 28 Jan 2000 | 23 |
4223 | 25 Jan 2000 | 2.3.3 | 23 Jan 2000 | 22 |
4224 | 08 Nov 1999 | 2.3.2 | 26 Jun 1999 | 21 |
4225 | 06 Apr 1999 | 2.3.1 | | 20 |
4226 | 15 Mar 1999 | 2.3.0 | 15 Mar 1999 | 20 |
4227 | 25 Nov 1998 | 2.2.1 | | 19 |
4228 | 03 Nov 1998 | 2.2.0 | | 19 |
4229 | 09 Sep 1998 | 2.1.1 | | 19 |
4230 | 20 Jul 1998 | 2.1.0 | | 19 |
4231 | 17 Jul 1998 | 2.0.19 | | 19 |
4232 | 18 Jun 1998 | 2.0.17 | | 19 |
4233 | 01 Jun 1998 | 2.0.16 | | 19 |
4234 | 27 May 1998 | 2.0.13 | 27 May 1998 | 19 |
4235 | 26 May 1998 | 2.0.12 | | 18 |
4236 | 22 May 1998 | 2.0.11 | | 18 |
4237 | 18 May 1998 | 2.0.9 | 18 May 1998 | 18 |
4238 | 17 May 1998 | 2.0.8 | | 17 |
4239 | 15 May 1998 | 2.0.1 | | 17 |
4240 | 14 May 1998 | 2.0.0 | | 17 |
4241 | 17 Apr 1998 | 1.7.4 | | 17 |
4242 | 13 Apr 1998 | 1.7.3 | | 17 |
4243 | 05 Apr 1998 | 1.7.2 | | 17 |
4244 | 26 Mar 1998 | 1.7.1 | | 17 |
4245 | 26 Mar 1998 | 1.7.0 | 26 Mar 1998 | 17 (MAX=30) |
4246 | 13 Jan 1998 | 1.6.9 | 13 Jan 1998 | 15 (MAX=20) |
4248 \* DATE OF COMMIT is the date the protocol change was committed to version