NEWS - android_external_rsync - Gitiles

 NEWS for rsync 2.6.3 (UNRELEASED)
 Protocol: 28 (unchanged)
 Changes since 2.6.2:

   SECURITY FIXES:

     - A bug in the sanitize_path routine (which affects a non-chrooted
       rsync daemon) could allow a user to craft a pathname that would get
       transformed into an absolute path for certain options (but not for
       file-transfer names).  If you're running an rsync daemon with chroot
       disabled, *please upgrade*, ESPECIALLY if the user privs you run
       rsync under is anything above "nobody".

   OUTPUT CHANGES (ATTN: those using a script to parse the verbose output):

     - Please note that the 2-line footer (output when verbose) now uses the
       term "sent" instead of "wrote" and "received" instead of "read".  If
       you are not parsing the numeric values out of this footer, a script
       would be better off using the empty line prior to the footer as the
       indicator that the verbose output is over.

     - The output from the --stats option was similarly affected to change
       "written" to "sent" and "read" to "received".

     - Rsync ensures that a filename that contains a newline gets mentioned
       with each newline transformed into a question mark (which prevents a
       filename from causing an empty line to be output).

   BUG FIXES:

     - Fixed a crash bug that might appear when --delete was used and
       multiple source directories were specified.

     - Fixed the 32-bit truncation of the file length when generating the
       checksums.

     - The --backup code no longer attempts to create some directories
       over and over again (generating warnings along the way).

     - Fixed a bug in the reading of the secrets file (by the daemon) and
       the password file (by the client):  the files no longer need to be
       terminated by a newline for their content to be read in.

     - If a file has a read error on the sending side or the reconstructed
       data doesn't match the expected checksum (perhaps due to the basis
       file changing during the transfer), the receiver will no longer
       retain the resulting file unless the --partial option was specified.
       (Note: for the read-error detection to work, neither side can be
       older than 2.6.3 -- older receivers will always retain the file, and
       older senders don't tell the receiver that the file had a read
       error.)

     - If a file gets resent in a single transfer and the --backup option
       is enabled, rsync no longer performs a duplicate backup (it used to
       overwrite the original file in the backup area).

     - Files specified in the daemon's "exclude" or "exclude from" config
       items are now excluded from being uploaded (assuming that the module
       allows uploading at all) in addition to the old download exclusion.

     - Got rid of a potential hang in the receiver when near the end of a
       phase.

     - When using --backup without a --backup-dir, rsync no longer preserves
       the modify time on directories.  This avoids confusing NFS.

     - When --copy-links (-L) is specified, we now output a separate error
       for a symlink that has no referent instead of claiming that a file
       "vanished".

     - The --copy-links (-L) option no longer has the side-effect of telling
       the receiving side to follow symlinks.  See the --keep-dirlinks
       option (mentioned below) for a way to specify that behavior.

     - Error messages from the daemon server's option-parsing (such as
       refused options) now get sent back to the client (the server used
       to just exit because the socket wasn't in the right state to send
       the message).

     - Most errors that occur during a daemon transfer are now returned to
       the user in addition to being logged (some messages are intended to
       be daemon-only).

     - Fixed a bug in the daemon authentication code when using one of the
       batch-processing options.

     - We try to work around some buggy IPv6 implementations that fail to
       implement IPV6_V6ONLY.  This should fix the "address in use" error
       that some daemons get when running on an OS with a buggy IPv6
       implementation.  Also, if the new code gets this error, we might
       suggest that the user specify --ipv4 or --ipv6 (if we think it will
       help).

     - When the remote rsync dies, make a better effort to recover any error
       messages it may have sent before dying (the local rsync used to just
       die with a socket-write error).

     - When using --delete and a --backup-dir that contains files that are
       hard-linked to their destination equivalents, rsync now makes sure
       that removed files really get removed (works around a really weird
       rename() behavior).

     - Avoid a bogus run-time complaint about a lack of 64-bit integers when
       the int64 type is defined as an off_t and it actually has 64-bits.

     - Added a configure check for open64() without mkstemp64() so that we
       can avoid using mkstemp() when such a combination is encountered.
       This bypasses a problem writing out large temp files on OSes such as
       AIX and HP-UX.

     - Fixed an age-old crash problem with --read-batch on a local copy
       (rsync was improperly assuming --whole-file for the local copy).

     - When --dry-run (-n) is used and the destination directory does not
       exist, rsync now produces a correct report of files that would be
       sent instead of dying with a chdir() error.

   ENHANCEMENTS:

     - Added the --partial-dir=DIR option that lets you specify where to
       (temporarily) put a partially transferred file (instead of over-
       writing the destination file).  E.g.  --partial-dir=.rsync-partial

     - Added --keep-dirlinks (-K), which allows you to symlink a directory
       onto another partition on the receiving side and have rsync treat it
       as matching a normal directory from the sender.

     - Added the --inplace option that tells rsync to write each destination
       file without using a temporary file.  The matching of existing data
       in the destination file can be severely limited by this, but there
       are also cases where this is more efficient (such as appending data).
       Use only when needed (see the man page for more details).

     - Added the "write only" option for the daemon's config file.

     - Added long-option names for -4 and -6 (namely --ipv4 and --ipv6)
       and documented all these options in the man page.

     - Improved the handling of the --bwlimit option so that it's less
       bursty, more accurate, and works properly over a larger range of
       values.

     - The rsync daemon-over-ssh code now looks for SSH_CONNECTION and
       SSH2_CLIENT in addition to SSH_CLIENT to figure out the IP address.

     - Added the --checksum-seed=N option for advanced users.

     - Batch writing/reading has a brand-new implementation that is simpler,
       fixes a few weird problems with the old code (such as no longer
       sprinkling the batch files into different dirs or even onto different
       systems), and is much less intrusive into the code (making it easier
       to maintain for the future).  The new code generates just one data
       file instead of three, which makes it possible to read the batch via
       stdin via a remote shell.  Also, the old requirement of forcing the
       same fixed checksum-seed for all batch processing has been removed.

     - If an rsync daemon has a module set with "list = no" (which hides its
       presence in the list of available modules), a user that fails to
       authenticate gets the same "unknown module" error that they would get
       if the module were actually unknown (while still logging the real
       error to the daemon's log file).  This prevents fishing for module
       names.

     - The daemon's "refuse options" config item now allows you to match
       option names using wildcards and/or the single-letter option names.

     - Each transferred file now gets its permissions and modified-time
       updated before the temp-file gets moved into place.  Previously, the
       finished file would have a very brief window where its permissions
       disallowed all group and world access.

   INTERNAL:

     - Some cleanup in the exclude code has saved some per-exclude memory
       and made the code easier to maintain.

     - Improved the argv-overflow checking for a remote command that has a
       lot of args.

     - Use rsyserr() in the various places that were still calling rprintf()
       with strerror() as an arg.

     - If an rsync daemon is listening on multiple sockets (to handle both
       IPv4 and IPv6 to a single port), we now close all the unneeded file
       handles after we accept a connection (we used to close just one of
       them).

     - Optimized the handling of larger block sizes (rsync used to slow to a
       crawl if the block size got too large).

     - Optimized away a loop in hash_search().

     - Some improvements to the sanitize_path() and clean_fname() functions
       makes them more efficient and produce better results (while still
       being compatible with the file-name cleaning that gets done on both
       sides when sending the file-list).

     - Got rid of alloc_sanitize_path() after adding a destination-buffer
       arg to sanitize_path() made it possible to put all the former's
       functionality into the latter.

   BUILD CHANGES:

     - Added a "gen" target to rebuild most of the generated files,
       including configure, config.h.in, the man pages, and proto.h.

     - If "make proto" doesn't find some changes in the prototypes, the
       proto.h file is left untouched (its time-stamp used to always be
       updated).

     - The variable $STRIP (that is optionally set by the install-strip
       target's rule) was changed to $INSTALL_STRIP because some systems
       have $STRIP set in the environment.

     - Fixed a build problem when SUPPORT_HARD_LINKS isn't defined.

   DEVELOPER RELATED:

     - The scripts in the testsuite dir were cleaned up a bit and a few
       new tests added.

     - Some new diffs were added to the patches dir, and some accepted
       ones were removed.
	NEWS for rsync 2.6.3 (UNRELEASED)
	Protocol: 28 (unchanged)
	Changes since 2.6.2:

	SECURITY FIXES:

	- A bug in the sanitize_path routine (which affects a non-chrooted
	rsync daemon) could allow a user to craft a pathname that would get
	transformed into an absolute path for certain options (but not for
	file-transfer names). If you're running an rsync daemon with chroot
	disabled, please upgrade, ESPECIALLY if the user privs you run
	rsync under is anything above "nobody".

	OUTPUT CHANGES (ATTN: those using a script to parse the verbose output):

	- Please note that the 2-line footer (output when verbose) now uses the
	term "sent" instead of "wrote" and "received" instead of "read". If
	you are not parsing the numeric values out of this footer, a script
	would be better off using the empty line prior to the footer as the
	indicator that the verbose output is over.

	- The output from the --stats option was similarly affected to change
	"written" to "sent" and "read" to "received".

	- Rsync ensures that a filename that contains a newline gets mentioned
	with each newline transformed into a question mark (which prevents a
	filename from causing an empty line to be output).

	BUG FIXES:

	- Fixed a crash bug that might appear when --delete was used and
	multiple source directories were specified.

	- Fixed the 32-bit truncation of the file length when generating the
	checksums.

	- The --backup code no longer attempts to create some directories
	over and over again (generating warnings along the way).

	- Fixed a bug in the reading of the secrets file (by the daemon) and
	the password file (by the client): the files no longer need to be
	terminated by a newline for their content to be read in.

	- If a file has a read error on the sending side or the reconstructed
	data doesn't match the expected checksum (perhaps due to the basis
	file changing during the transfer), the receiver will no longer
	retain the resulting file unless the --partial option was specified.
	(Note: for the read-error detection to work, neither side can be
	older than 2.6.3 -- older receivers will always retain the file, and
	older senders don't tell the receiver that the file had a read
	error.)

	- If a file gets resent in a single transfer and the --backup option
	is enabled, rsync no longer performs a duplicate backup (it used to
	overwrite the original file in the backup area).

	- Files specified in the daemon's "exclude" or "exclude from" config
	items are now excluded from being uploaded (assuming that the module
	allows uploading at all) in addition to the old download exclusion.

	- Got rid of a potential hang in the receiver when near the end of a
	phase.

	- When using --backup without a --backup-dir, rsync no longer preserves
	the modify time on directories. This avoids confusing NFS.

	- When --copy-links (-L) is specified, we now output a separate error
	for a symlink that has no referent instead of claiming that a file
	"vanished".

	- The --copy-links (-L) option no longer has the side-effect of telling
	the receiving side to follow symlinks. See the --keep-dirlinks
	option (mentioned below) for a way to specify that behavior.

	- Error messages from the daemon server's option-parsing (such as
	refused options) now get sent back to the client (the server used
	to just exit because the socket wasn't in the right state to send
	the message).

	- Most errors that occur during a daemon transfer are now returned to
	the user in addition to being logged (some messages are intended to
	be daemon-only).

	- Fixed a bug in the daemon authentication code when using one of the
	batch-processing options.

	- We try to work around some buggy IPv6 implementations that fail to
	implement IPV6_V6ONLY. This should fix the "address in use" error
	that some daemons get when running on an OS with a buggy IPv6
	implementation. Also, if the new code gets this error, we might
	suggest that the user specify --ipv4 or --ipv6 (if we think it will
	help).

	- When the remote rsync dies, make a better effort to recover any error
	messages it may have sent before dying (the local rsync used to just
	die with a socket-write error).

	- When using --delete and a --backup-dir that contains files that are
	hard-linked to their destination equivalents, rsync now makes sure
	that removed files really get removed (works around a really weird
	rename() behavior).

	- Avoid a bogus run-time complaint about a lack of 64-bit integers when
	the int64 type is defined as an off_t and it actually has 64-bits.

	- Added a configure check for open64() without mkstemp64() so that we
	can avoid using mkstemp() when such a combination is encountered.
	This bypasses a problem writing out large temp files on OSes such as
	AIX and HP-UX.

	- Fixed an age-old crash problem with --read-batch on a local copy
	(rsync was improperly assuming --whole-file for the local copy).

	- When --dry-run (-n) is used and the destination directory does not
	exist, rsync now produces a correct report of files that would be
	sent instead of dying with a chdir() error.

	ENHANCEMENTS:

	- Added the --partial-dir=DIR option that lets you specify where to
	(temporarily) put a partially transferred file (instead of over-
	writing the destination file). E.g. --partial-dir=.rsync-partial

	- Added --keep-dirlinks (-K), which allows you to symlink a directory
	onto another partition on the receiving side and have rsync treat it
	as matching a normal directory from the sender.

	- Added the --inplace option that tells rsync to write each destination
	file without using a temporary file. The matching of existing data
	in the destination file can be severely limited by this, but there
	are also cases where this is more efficient (such as appending data).
	Use only when needed (see the man page for more details).

	- Added the "write only" option for the daemon's config file.

	- Added long-option names for -4 and -6 (namely --ipv4 and --ipv6)
	and documented all these options in the man page.

	- Improved the handling of the --bwlimit option so that it's less
	bursty, more accurate, and works properly over a larger range of
	values.

	- The rsync daemon-over-ssh code now looks for SSH_CONNECTION and
	SSH2_CLIENT in addition to SSH_CLIENT to figure out the IP address.

	- Added the --checksum-seed=N option for advanced users.

	- Batch writing/reading has a brand-new implementation that is simpler,
	fixes a few weird problems with the old code (such as no longer
	sprinkling the batch files into different dirs or even onto different
	systems), and is much less intrusive into the code (making it easier
	to maintain for the future). The new code generates just one data
	file instead of three, which makes it possible to read the batch via
	stdin via a remote shell. Also, the old requirement of forcing the
	same fixed checksum-seed for all batch processing has been removed.

	- If an rsync daemon has a module set with "list = no" (which hides its
	presence in the list of available modules), a user that fails to
	authenticate gets the same "unknown module" error that they would get
	if the module were actually unknown (while still logging the real
	error to the daemon's log file). This prevents fishing for module
	names.

	- The daemon's "refuse options" config item now allows you to match
	option names using wildcards and/or the single-letter option names.

	- Each transferred file now gets its permissions and modified-time
	updated before the temp-file gets moved into place. Previously, the
	finished file would have a very brief window where its permissions
	disallowed all group and world access.

	INTERNAL:

	- Some cleanup in the exclude code has saved some per-exclude memory
	and made the code easier to maintain.

	- Improved the argv-overflow checking for a remote command that has a
	lot of args.

	- Use rsyserr() in the various places that were still calling rprintf()
	with strerror() as an arg.

	- If an rsync daemon is listening on multiple sockets (to handle both
	IPv4 and IPv6 to a single port), we now close all the unneeded file
	handles after we accept a connection (we used to close just one of
	them).

	- Optimized the handling of larger block sizes (rsync used to slow to a
	crawl if the block size got too large).

	- Optimized away a loop in hash_search().

	- Some improvements to the sanitize_path() and clean_fname() functions
	makes them more efficient and produce better results (while still
	being compatible with the file-name cleaning that gets done on both
	sides when sending the file-list).

	- Got rid of alloc_sanitize_path() after adding a destination-buffer
	arg to sanitize_path() made it possible to put all the former's
	functionality into the latter.

	BUILD CHANGES:

	- Added a "gen" target to rebuild most of the generated files,
	including configure, config.h.in, the man pages, and proto.h.

	- If "make proto" doesn't find some changes in the prototypes, the
	proto.h file is left untouched (its time-stamp used to always be
	updated).

	- The variable $STRIP (that is optionally set by the install-strip
	target's rule) was changed to $INSTALL_STRIP because some systems
	have $STRIP set in the environment.

	- Fixed a build problem when SUPPORT_HARD_LINKS isn't defined.

	DEVELOPER RELATED:

	- The scripts in the testsuite dir were cleaned up a bit and a few
	new tests added.

	- Some new diffs were added to the patches dir, and some accepted
	ones were removed.