* scripts/xsparse.c (read_xheader): Avoid undefined behavior by
accessing via null pointer sparse_map or out of its bounds when
the input is invalid. This means we no longer need the ‘expect’
local, so omit it for simplicity.
* scripts/xsparse.c (emalloc): Do not report failure when malloc
(0) returns NULL, as it does on AIX. Simply return a null
pointer; that’s good enough for xsparse.c.
* scripts/xsparse.c (expand_sparse): Read into auto buffer, not heap.
The heap code was wrong for two reasons: it called malloc just once
in the try-again loop, and even when it succeeded it could have
left so few bytes available in the heap that later stdio calls
could fail. Reading into the auto buffer might be a bit slower
but speed is not an issue here and it’s better to be simple.
* scripts/xsparse.c: Include inttypes.h, for strtoimax.
Don’t include stdint.h, since inttypes.h includes it.
Sort include directives.
Make all extern functions and vars static, except for ‘main’.
(string_to_off): Use strtoimax instead of doing overflow
checking by hand, incorrectly (it relied on undefined behavior).
(string_to_size): New arg MAXSIZE. All callers changed.
(get_var): Return bool not int. Fix unlikely integer overflow.
Use strncmp instead of memcmp, to avoid unlikely pointer overflow.
(read_xheader, read_map, main): Avoid unlikely integer overflow.
Check for I/O errors more consistently.
(main): Prefer bool to int, and put vars near use.
* scripts/backup.in: Check exit code of MT_BEGIN
* scripts/backup.sh.in (backup_host): Return meaningful code
in case of remote execution. See the comment, though.
Support architecture-specific field ranges for the "-c" function.
Better handle negative or larger-than-32-bit field values even
when running in 32-bit Perl (for the default "print a summary"
function)
* scripts/tar-snapshot-edit: Update Perl syntax to work
correctly with more recent versions of Perl. (The original
code worked with in the v5.8 timeframe but not with
Perl v5.10.1 and later.)
Add a "-c" option to check the snapshot file for invalid
field values.
Handle NFS indicator character ("+") in version 0 and 1 files.
Preserve the original header/version line when editing version 1
or 2 files.
Tweak output formatting.
* doc/tar-snapshot-edit.texi: Update documentation.
Problem reported by Dennis Wydra in
<http://lists.gnu.org/archive/html/bug-tar/2010-11/msg00082.html>.
* scripts/backup.in: Accept "-l LEVEL". Be more systematic about
backslashes inside ``; it shouldn't matter for modern shells but
it might matter for older ones.
* scripts/restore.in: Likewise.
* scripts/backup.in: Adjust implementation of -t/--time to match
the new implementation of -l/--level.
extracted by third-party tars. It is not meant to be installed nor
to be included in the distribution. It is here, so that it can be
obtained either from CVS or from the tar web site.
GNU coding standards. Remove --license.
* gnulib.modules: Add version-etc-fsf.
* doc/tar.texi: Document the change.
* lib/.cvsignore: Add version-etc-fsf.c, version-etc.c, version-etc.h.
* scripts/Makefile.am (SED_CMD): Update PAKCAGE_NAME, not PACKAGE.
* scripts/backup.in: Remove --license. Change --version to conform
to GCS.
* scripts/restore.in: Likewise.
* scripts/backup.sh.in (license): Output briefer license in the
style of coreutils, for consistency with other changes.
* src/tar.c: Include <version-etc.h>.
(LICENSE_OPTION): Remove.
(options): Remove --license.
(license): Remove.
(parse_opt): Use version_etc instead of rolling it ourselves.
Remove --license.
* tests/version.at (tar --version): Check only the first line of
output.
Paul Eggert