Commit Graph

13 Commits

Author SHA1 Message Date
Tim Kientzle
989f6ccc3f Portability. 2009-12-28 06:59:35 +00:00
Tim Kientzle
cc2a51aaf7 Merge from libarchive.googlecode.com r791, r879, r884, r948: Various
fixes to read_support_compression_program.  In particular, failure of
the external program is detected a lot earlier, which gives much more
reasonable error handling.
2009-04-12 05:47:23 +00:00
Tim Kientzle
e2421f7667 Merge from libarchive.googlecode.com: Mostly a bunch of
corrections to the Windows support to reconcile differences
between Visual Studio and Cygwin.  Includes parts of
revisions 757, 774, 787, 815, 817, 819, 820, 844, and 886.

Of particular note, r886 overhauled the UTF-8/Unicode conversions to
work correctly regardless of whether the local system uses 16-bit
or 32-bit wchar_t.  (I assume that systems with 16-bit wchar_t
use UTF-16 and those with 32-bit wchar_t use UCS-4.)  This revision
also added a preference for wcrtomb() (which is thread-safe) on
platforms that support it.
2009-04-12 05:33:34 +00:00
Tim Kientzle
de01c3b1eb Merge r550,584,587,609,647,674 from libarchive.googlecode.com:
Refactor the read_compression_program to add two new abilities:
 * Public API:  You can now include a signature string when you
   register a program; the program will run only on input that
   matches the signature string.
 * Internal API: You can use the init() function to instantiate
   an external program as part of a filter pipeline.  This
   can be used for graceful fallback (if zlib is unavailable, use
   external gzip instead) and to use external programs with
   bidders that are more sophisticated than a static signature check.
2009-03-07 02:47:04 +00:00
Tim Kientzle
634fb9dd48 Merge r491,493,500,507,510,530,543 from libarchive.googlecode.com:
This implements the new generic options framework that provides a way
to override format- and compression-specific parameters.
2009-03-06 05:58:56 +00:00
Tim Kientzle
74aced1051 Merge r398 from libarchive.googlecode.com: Check that bidder
object was allocated before we try to use it.
2009-03-06 04:22:34 +00:00
Tim Kientzle
facbbae9f9 Merge r364, r378, r379, r393, and r539 from libarchive.googlecode.com:
This is the last phase of the "big decompression refactor" that
puts a lazy reblocking layer between each pair of read filters.
I've also changed the terminology for this area---the two kinds
of objects are now called "read filters" and "read filter bidders"---and
moved ownership of these objects to the archive_read core.

This greatly simplifies implementing new read filters, which
can now use peek/consume I/O semantics both for bidding (arbitrary
look-ahead!) and for reading streams (look-ahead simplifies handling
concatenated streams, for instance).

The first merge here is the overhaul proper; the remainder are small
fixes to correct errors in the initial implementation.
2009-03-05 02:19:42 +00:00
Tim Kientzle
b1ff9c25b8 MfP4: Big read filter refactoring.
This is an attempt to eliminate a lot of redundant
code from the read ("decompression") filters by
changing them to juggle arbitrary-sized blocks
and consolidate reblocking code at a single point
in archive_read.c.

Along the way, I've changed the internal read/consume
API used by the format handlers to a slightly
different style originally suggested by des@.  It
does seem to simplify a lot of common cases.

The most dramatic change is, of course, to
archive_read_support_compression_none(), which
has just evaporated into a no-op as the blocking
code this used to hold has all been moved up
a level.

There's at least one more big round of refactoring
yet to come before the individual filters are as
straightforward as I think they should be...
2008-12-06 06:45:15 +00:00
Tim Kientzle
6d35d9a6e9 Windows compatibility: The stub replacement for compression_program
(which always returns an error when invoked) needs its prototype.
2008-09-12 03:53:54 +00:00
Tim Kientzle
936d273c3a A number of minor corrections to the support for external compression
programs:
  * Support platforms that have fork() but not vfork()
  * Don't write(), select(), or poll() against closed file descriptors
2008-06-15 10:45:57 +00:00
Tim Kientzle
fa07de5eeb MFp4: libarchive 2.5.4b. (Still 'b' until I get a bit more
feedback, but the 2.5 branch is shaping up nicely.)

In addition to many small bug fixes and code improvements:
 * Another iteration of versioning; I think I've got it right now.
 * Portability:  A lot of progress on Windows support (though I'm
   not committing all of the Windows support files to FreeBSD CVS)
 * Explicit tracking of MBS, WCS, and UTF-8 versions of strings
   in archive_entry; the archive_entry routines now correctly return
   NULL only when something is unset, setting NULL properly clears
   string values.  Most charset conversions have been pushed down to
   archive_string.
 * Better handling of charset conversion failure when writing or
   reading UTF-8 headers in pax archives
 * archive_entry_linkify() provides multiple strategies for
   hardlink matching to suit different format expectations
 * More accurate bzip2 format detection
 * Joerg Sonnenberger's extensive improvements to mtree support
 * Rough support for self-extracting ZIP archives.  Not an ideal
   approach, but it works for the archives I've tried.
 * New "sparsify" option in archive_write_disk converts blocks of nulls
   into seeks.
 * Better default behavior for the test harness; it now reports
   all failures by default instead of coredumping at the first one.
2008-05-26 17:00:24 +00:00
Tim Kientzle
8ea9716c0c Fix a strict aliasing warning from GCC 4.1.
Thanks to: Joerg Sonnenberger
Approved by: re (hrs)
MFC after: 3 days
2007-07-20 01:28:50 +00:00
Tim Kientzle
b48b40f1f8 libarchive 2.2.3
* "compression_program" support uses an external program
  * Portability: no longer uses "struct stat" as a primary
    data interchange structure internally
  * Part of the above: refactor archive_entry to separate
    out copy_stat() and stat() functions
  * More complete tests for archive_entry
  * Finish archive_entry_clone()
  * Isolate major()/minor()/makedev() in archive_entry; remove
    these from everywhere else.
  * Bug fix: properly handle decompression look-ahead at end-of-data
  * Bug fixes to 'ar' support
  * Fix memory leak in ZIP reader
  * Portability: better timegm() emulation in iso9660 reader
  * New write_disk flags to suppress auto dir creation and not
    overwrite newer files (for future cpio front-end)
  * Simplify trailing-'/' fixup when writing tar and pax
  * Test enhancements:  fix various compiler warnings, improve
    portability, add lots of new tests.
  * Documentation: document new functions, first draft of
    libarchive_internals.3

MFC after: 14 days
Thanks to: Joerg Sonnenberger (compression_program)
Thanks to: Kai Wang (ar)
Thanks to: Colin Percival (many small fixes)
Thanks to: Many others who sent me various patches and problem reports.
2007-05-29 01:00:21 +00:00