archive_read_disk API to pull metadata off of disk. This
removes a lot of platform-specific knowledge of things like
ACLs, file flags, and extended attributes from bsdtar.
than was read. This seems to have only affected the shar
writer, since other formats proactively truncate output
to the originally-advertised size.
PR: bin/131244
MFC after: 7 days
fchdir() to return back to the parent. If those fail,
we're just dead in the water. Add a new error value
TREE_ERROR_FATAL to indicate that directory traversal
cannot continue. Have write.c honor that by exiting
immediately.
MFC after: 30 days
that should result in a non-zero return value.
In particular, this should address the issue that David Wolfskill
ran into with a somewhat flaky NFS mount resulting in a damaged
archive even though tar returned success.
MFC after: 4 days
HAVE_STRUCT_STAT_ST_FLAGS, Linux support depends on the
existence of the appropriate ioctl() options. In particular,
this should fix some nagging compile errors on Linux platforms
that don't have e2fsprogs-devel installed.
where it is used. [1]
Don't leak file descriptors in write_entry_backend if archive_write_header
returns ARCHIVE_FAILED.
Found by: Coverity Prevent [1]
In addition to a number of bug fixes and minor changes:
* --numeric-owner (ignore user/group names on create and extract)
* -S (sparsify files on extraction)
* -s (regex filename substitutions)
* Use new libarchive 'linkify' to get correct hardlink handling for
both old and new cpio formats
* Rework 'copy' test to be insensitive to readdir() filename ordering
Most of the credit for this work goes to Joerg Sonnenberger, who
has been duplicating features from NetBSD's 'pax' program.
hardlink table for two reasons: 1. If le->name is set to NULL, the
structure le won't be inserted into the table; 2. Even if le somehow
did manage to get into the table with le->name equal to NULL, we would
die when we dereferenced le->null before we could get to the point of
freeing the entry.
Remove the unnecessary "if (le->name != NULL)" test and just free the
pointer.
Found by: Coverity Prevent
(in fact, there has never been any way for it to be NULL, going all the
way back to revision 1.1 of this file), so remove the check and
unconditionally free entry.
Found by: Coverity Prevent
handling to bsdtar. When writing archives (including copying via the
@archive directive) a line is output to stderr indicating what is being
done (adding or copying), the path, and how far through the file we are;
extracting currently does not report progress within each file, but
this is likely to happen eventually.
Discussed with: kientzle
Obtained from: tarsnap
* Implement --use-compress-program using new libarchive feature.
* Minor portability improvement by adjusting casts used to
print out uids, gids, and device numbers.
Thanks to: Joerg Sonnenberger for the --use-compress-program implementation.
MFC after: 15 days
failed path is one which was specified on the command line.
This is a compromise between the situation prior to revision 1.57
(where a race between tar(1) and rm(1) could cause tar(1) to
spuriously report an error) and the situation after revision 1.57
(where "tar -c /no/such/path" prints a warning but returns with
an exit code of zero).
Inspired by: rafan
MFC after: 1 week
into separate append_archive and append_archive_filename functions; the first
takes a "struct archive *" as input, while the second takes a filename, opens
the archive, and calls the first.
There should be no changes in behaviour as a result of this commit; it simply
reorganizes code to make more sense. At some point in the future it may be
possible to share code between append_archive and read_archive, but not yet.
Discussed with: kientzle
affecting the return value from bsdtar), since (a) it usually occurs
due to a perfectly innocent (and unavoidable) race condition where a
user deletes a file in the window between bsdtar reading a directory
and attempting to read the file; and (b) aside from printing a warning
message, bsdtar behaves exactly as if the file had been deleted prior
to bsdtar reading its parent directory.
Reviewed by: kientzle
MFC after: 6 days
complaining about lstat(2) failing. It's a bit scary to find the message
tar: /: Cannot stat: No such file or directory
printed while doing a backup.
MFC after: 1 week
* New test scripts exercise some basic functionality
* Most header inclusions are now protected (portability)
* read.c now relies on security checks in libarchive instead
of trying to do its own (optimization)
* -p now enabled by default for root, add --no-same-permissions
to disable it
* Comments, minor style fixes.
(as determined by the initial size given to the header).
Libarchive recently changed to correctly return the amount
of data actually consumed in this case, which revealed this
bug in bsdtar.
* Create file if it doesn't exist.
* If archive is "empty", then append to it with pax restricted
* If user specified a format, use that if it's compatible with
the existing format.
forthcoming. This commit also has a number of style(9) fixes and
minor corrections so the code works better with the build system being
used for non-FreeBSD builds.
Many thanks to: Jaakko Heinonen, who proposed a mechanism for extended
attribute support and implemented both the machine-independent portion
and the Linux-specific portion.
when list the archive contents, then try to extract selected files
(file selection always works against unedited pathnames). With this change,
-t always shows the pathnames as they appear in the archive.
Thanks to: Robert Watson
This causes attempts to update a non-existent file to report
an actual error instead of triggering an assertion failure.
PR: bin/87911
Thanks to: roemer.ulrich
MFC after: 3 days
Note: This does not entirely fix bin/87911. I need to decide on
the "correct" response when someone tries to update a non-existent
archive file.
particular, acl support is no longer enabled on FreeBSD 4, acl support
should be correctly enabled on Linux, dirent.d_namlen should be
correctly detected on platforms that support it.
Thanks to: Greg Lewis, Juergen Lock, and Jaakko Heinonen
extraction and creation. While I'm here, fix a bug reported by Garrett
Wollman: when stripping the leading '/' from the path "/", don't produce
an entry with an empty name; produce "." instead.
switches to support selecting files by time of modification.
Special thanks to: Steven M. Bellovin, Rich $alz, and Jim Berets,
authors of the public-domain getdate.y date-parsing code.
