MFC r262754: MFV r253848 (mm):
Update vendor/xz from v5.0 branch to post-5.0.5
This commit is contained in:
delphij
parent
f17aef0675
commit
a44a1e412b
@ -1,3 +1,348 @@
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commit b69900ed0b2f914fc6c0a180dcb522dbe5b80ea7
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Sun Jun 30 18:02:27 2013 +0300
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Man pages: Use similar syntax for synopsis as in xz.
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The man pages of lzmainfo, xzmore, and xzdec had similar
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constructs as the man page of xz had before the commit
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eb6ca9854b8eb9fbf72497c1cf608d6b19d2d494. Eric S. Raymond
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didn't mention these man pages in his bug report, but
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it's nice to be consistent.
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commit cf4a1e1879d89be314ef3c064bd2656ea452f87e
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Sun Jun 30 15:55:09 2013 +0300
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Update NEWS for 5.0.5.
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commit cb94bb6d1f34e1e93c2d634ea9c3b7dfb3981d05
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Sun Jun 30 15:54:38 2013 +0300
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Bump version and soname for 5.0.5.
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commit b7dee202d5b041ccae028d0c5433b83cecbe9e5d
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 28 23:56:17 2013 +0300
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xz: Fix return value type in io_write_buf().
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It didn't affect the behavior of the code since -1
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becomes true anyway.
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commit 265e7b44d804b47373f10b7da28350db7611cea6
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 28 18:46:13 2013 +0300
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xz: Remove an outdated NetBSD-specific comment.
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Nowadays errno == EFTYPE is documented in open(2).
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commit 78c2f8db902195468b8249c432252a6b281db836
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 28 18:09:47 2013 +0300
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xz: Fix error detection of fcntl(fd, F_SETFL, flags) calls.
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POSIX says that fcntl(fd, F_SETFL, flags) returns -1 on
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error and "other than -1" on success. This is how it is
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documented e.g. on OpenBSD too. On Linux, success with
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F_SETFL is always 0 (at least accorinding to fcntl(2)
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from man-pages 3.51).
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commit 91750dff8f2c654ff636f12a2acdffe5492374b3
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 28 17:36:47 2013 +0300
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xz: Fix use of wrong variable in a fcntl() call.
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Due to a wrong variable name, when writing a sparse file
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to standard output, *all* file status flags were cleared
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(to the extent the operating system allowed it) instead of
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only clearing the O_APPEND flag. In practice this worked
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fine in the common situations on GNU/Linux, but I didn't
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check how it behaved elsewhere.
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The original flags were still restored correctly. I still
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changed the code to use a separate boolean variable to
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indicate when the flags should be restored instead of
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relying on a special value in stdout_flags.
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commit e11888a79a4a77a69afde60445880d44f63d01aa
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Wed Jun 26 13:30:57 2013 +0300
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xz: Check the value of lzma_stream_flags.version in --list.
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It is a no-op for now, but if an old xz version is used
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together with a newer liblzma that supports something new,
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then this check becomes important and will stop the old xz
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from trying to parse files that it won't understand.
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commit f39ddd88f3222219ada88998cf30abfdd3e0e96c
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Wed Jun 26 12:17:00 2013 +0300
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Build: Require Automake 1.12 and use serial-tests option.
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It should actually still work with Automake 1.10 if
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the serial-tests option is removed. Automake 1.13 started
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using parallel tests by default and the option to get
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the old behavior isn't supported before 1.12.
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At least for now, parallel tests don't improve anything
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in XZ Utils but they hide the progress output from
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test_compress.sh.
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commit cb84e278027a90e9827a6f4d3bb0b4d4744a2fbb
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Sun Jun 23 17:36:47 2013 +0300
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xz: Validate Uncompressed Size from Block Header in list.c.
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This affects only "xz -lvv". Normal decompression with xz
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already detected if Block Header and Index had mismatched
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Uncompressed Size fields. So this just makes "xz -lvv"
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show such files as corrupt instead of showing the
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Uncompressed Size from Index.
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commit f01780fce454c7489f7dcbf806299b50da5f51b7
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Wed Jun 26 10:58:58 2013 +0300
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Update THANKS.
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commit d98ede7d700b892e32d9c2f46563b6ebc566786d
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 21 22:04:45 2013 +0300
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xz: Make the man page more friendly to doclifter.
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Thanks to Eric S. Raymond.
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commit 19b447b64b3f520cd5b11429000b092f7c76709b
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 21 21:54:59 2013 +0300
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xz: A couple of man page fixes.
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Now the interaction of presets and custom filter chains
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is described correctly. Earlier it contradicted itself.
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Thanks to DevHC who reported these issues on IRC to me
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on 2012-12-14.
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commit 45edf2966fc9a4d2eae8f84b2fa027fb4fa1df8b
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 21 21:50:26 2013 +0300
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xz: Fix interaction between preset and custom filter chains.
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There was somewhat illogical behavior when --extreme was
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specified and mixed with custom filter chains.
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Before this commit, "xz -9 --lzma2 -e" was equivalent
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to "xz --lzma2". After it is equivalent to "xz -6e"
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(all earlier preset options get forgotten when a custom
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filter chain is specified and the default preset is 6
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to which -e is applied). I find this less illogical.
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This also affects the meaning of "xz -9e --lzma2 -7".
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Earlier it was equivalent to "xz -7e" (the -e specified
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before a custom filter chain wasn't forgotten). Now it
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is "xz -7". Note that "xz -7e" still is the same as "xz -e7".
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Hopefully very few cared about this in the first place,
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so pretty much no one should even notice this change.
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Thanks to Conley Moorhous.
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commit b065984e5a9272eb50bc0c6d3731e6199c0ae8a8
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Apr 8 17:53:05 2011 +0300
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xz: Change size_t to uint32_t in a few places.
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commit 32be621f52f2e1686db88baa7b01dc1ae338f426
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Sat Apr 27 22:07:46 2013 +0300
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Build: Use -Wvla with GCC if supported.
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Variable-length arrays are mandatory in C99 but optional in C11.
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The code doesn't currently use any VLAs and it shouldn't in the
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future either to stay compatible with C11 without requiring any
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optional C11 features.
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commit efb07cfba65e9e05984c02cd796c1b0338ce04dc
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Mon Apr 15 19:29:09 2013 +0300
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xzdec: Improve the --help message.
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The options are now ordered in the same order as in xz's help
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message.
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Descriptions were added to the options that are ignored.
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I left them in parenthesis even if it looks a bit weird
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because I find it easier to spot the ignored vs. non-ignored
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options from the list that way.
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commit e3c8be13699e2813f5e2879d8187444b46d82d89
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Apr 5 19:25:40 2013 +0300
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Update THANKS.
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commit ad8282efe483612f6b5544f9a0d2e4914fb2532a
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Author: Jeff Bastian <jbastian@redhat.com>
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Date: Wed Apr 3 13:59:17 2013 +0200
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xzgrep: make the '-h' option to be --no-filename equivalent
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* src/scripts/xzgrep.in: Accept the '-h' option in argument parsing.
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commit 9271a3eb0e022b23e8712154be851d0afe4c02e4
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Apr 5 19:34:09 2013 +0300
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liblzma: Be less picky in lzma_alone_decoder().
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To avoid false positives when detecting .lzma files,
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rare values in dictionary size and uncompressed size fields
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were rejected. They will still be rejected if .lzma files
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are decoded with lzma_auto_decoder(), but when using
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lzma_alone_decoder() directly, such files will now be accepted.
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Hopefully this is an OK compromise.
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This doesn't affect xz because xz still has its own file
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format detection code. This does affect lzmadec though.
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So after this commit lzmadec will accept files that xz or
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xz-emulating-lzma doesn't.
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NOTE: lzma_alone_decoder() still won't decode all .lzma files
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because liblzma's LZMA decoder doesn't support lc + lp > 4.
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Reported here:
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http://sourceforge.net/projects/lzmautils/forums/forum/708858/topic/7068827
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Conflicts:
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src/liblzma/common/alone_decoder.c
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src/liblzma/common/alone_decoder.h
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commit 211b931cee58626c1d2e021810cb108cb5cbc10f
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Tue Mar 5 19:14:50 2013 +0200
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Avoid unneeded use of awk in xzless.
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Use "read" instead of "awk" in xzless to get the version
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number of "less". The need for awk was introduced in
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the commit db5c1817fabf7cbb9e4087b1576eb26f0747338e.
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Thanks to Ariel P for the patch.
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commit 9f62fd9605eade23b62b07a235d1f02156f7a5c6
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Author: Jonathan Nieder <jrnieder@gmail.com>
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Date: Mon Nov 19 00:10:10 2012 -0800
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xzless: Make "less -V" parsing more robust
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In v4.999.9beta~30 (xzless: Support compressed standard input,
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2009-08-09), xzless learned to parse ‘less -V’ output to figure out
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whether less is new enough to handle $LESSOPEN settings starting
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with “|-”. That worked well for a while, but the version string from
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‘less’ versions 448 (June, 2012) is misparsed, producing a warning:
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$ xzless /tmp/test.xz; echo $?
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/usr/bin/xzless: line 49: test: 456 (GNU regular expressions): \
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integer expression expected
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0
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More precisely, modern ‘less’ lists the regexp implementation along
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with its version number, and xzless passes the entire version number
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with attached parenthetical phrase as a number to "test $a -gt $b",
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producing the above confusing message.
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$ less-444 -V | head -1
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less 444
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$ less -V | head -1
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less 456 (no regular expressions)
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So relax the pattern matched --- instead of expecting "less <number>",
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look for a line of the form "less <number>[ (extra parenthetical)]".
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While at it, improve the behavior when no matching line is found ---
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instead of producing a cryptic message, we can fall back on a LESSPIPE
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setting that is supported by all versions of ‘less’.
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The implementation uses "awk" for simplicity. Hopefully that’s
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portable enough.
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Reported-by: Jörg-Volker Peetz <jvpeetz@web.de>
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Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
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commit 1d05980f5b5c2c94d833001daccacce4a466876e
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Wed Oct 3 15:54:24 2012 +0300
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xz: Fix the note about --rsyncable on the man page.
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commit fb68497333598688d309a92838d91fd560f7e9f0
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Sep 28 20:11:09 2012 +0300
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xz: Improve handling of failed realloc in xrealloc.
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Thanks to Jim Meyering.
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commit 75013db6d4d63c195bd8b8d45729b4be0665a812
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Sat Dec 15 20:01:02 2012 +0200
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A few typo fixes to comments and the xz man page.
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Thanks to Jim Meyering.
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commit e44b21839b1dcbac5097be39b87dd2ddb6e114fd
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Thu Aug 2 17:13:30 2012 +0300
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Build: Bump gettext version requirement to 0.18.
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Otherwise too old version of m4/lib-link.m4 gets included
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when autoreconf -fi is run.
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commit fd3dbb23ca7e75a7a888d7e897c381dc06308307
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Thu Jul 5 07:36:28 2012 +0300
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Tests: Remove tests/test_block.c that had gotten committed accidentally.
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commit 05a735d279d74af437c31f25f69aded4713c1a3d
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Thu Jul 5 07:33:35 2012 +0300
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Build: Include macosx/build.sh in the distribution.
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It has been in the Git repository since 2010 but probably
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few people have seen it since it hasn't been included in
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the release tarballs. :-(
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commit 4e6d62793b5e7b87edcc93c7ded072c1ecd94173
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Thu Jul 5 07:24:45 2012 +0300
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Docs: Fix the name LZMA Utils -> XZ Utils in debug/README.
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commit dd95b5e7614baf1f07a1316b5106bd616a9efa79
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Thu Jul 5 07:23:17 2012 +0300
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Include debug/translation.bash in the distribution.
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Also fix the script name mentioned in README.
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commit 20778053a07eb90c159c1377ca8dc05a90fd530b
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Author: Lasse Collin <lasse.collin@tukaani.org>
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Date: Fri Jun 22 14:36:16 2012 +0300
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@ -210,8 +210,8 @@ XZ Utils
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# <Edit the .po file in the po directory.>
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make -C po update-po
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make install
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bash debug/translations.bash | less
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bash debug/translations.bash | less -S # For --list outputs
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bash debug/translation.bash | less
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bash debug/translation.bash | less -S # For --list outputs
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Repeat the above as needed (no need to re-run configure though).
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@ -6,6 +6,7 @@ Some people have helped more, some less, but nevertheless everyone's help
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has been important. :-) In alphabetical order:
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- Mark Adler
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- H. Peter Anvin
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- Jeff Bastian
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- Nelson H. F. Beebe
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- Karl Berry
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- Anders F. Björklund
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@ -47,6 +48,7 @@ has been important. :-) In alphabetical order:
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- Bela Lubkin
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- Gregory Margo
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- Jim Meyering
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- Conley Moorhous
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- Rafał Mużyło
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- Adrien Nader
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- Hongbo Ni
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@ -58,8 +60,10 @@ has been important. :-) In alphabetical order:
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- Diego Elio Pettenò
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- Elbert Pol
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- Mikko Pouru
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- Pavel Raiskup
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- Robert Readman
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- Bernhard Reutner-Fischer
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- Eric S. Raymond
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- Cristian Rodríguez
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- Christian von Roques
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- Jukka Salmi
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@ -22,7 +22,7 @@
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*/
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#define LZMA_VERSION_MAJOR 5
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#define LZMA_VERSION_MINOR 0
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#define LZMA_VERSION_PATCH 4
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#define LZMA_VERSION_PATCH 5
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#define LZMA_VERSION_STABILITY LZMA_VERSION_STABILITY_STABLE
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#ifndef LZMA_VERSION_COMMIT
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@ -6,7 +6,6 @@
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/// \todo Crypto++ has x86 ASM optimizations. They use SSE so if they
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/// are imported to liblzma, SSE instructions need to be used
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/// conditionally to keep the code working on older boxes.
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/// We could also support using some external libary for SHA-256.
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//
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// This code is based on the code found from 7-Zip, which has a modified
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// version of the SHA-256 found from Crypto++ <http://www.cryptopp.com/>.
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@ -26,6 +26,11 @@ struct lzma_coder_s {
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SEQ_CODE,
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} sequence;
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/// If true, reject files that are unlikely to be .lzma files.
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/// If false, more non-.lzma files get accepted and will give
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/// LZMA_DATA_ERROR either immediately or after a few output bytes.
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bool picky;
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/// Position in the header fields
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size_t pos;
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@ -68,13 +73,13 @@ alone_decode(lzma_coder *coder,
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|= (size_t)(in[*in_pos]) << (coder->pos * 8);
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if (++coder->pos == 4) {
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if (coder->options.dict_size != UINT32_MAX) {
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if (coder->picky && coder->options.dict_size
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!= UINT32_MAX) {
|
||||
// A hack to ditch tons of false positives:
|
||||
// We allow only dictionary sizes that are
|
||||
// 2^n or 2^n + 2^(n-1). LZMA_Alone created
|
||||
// only files with 2^n, but accepts any
|
||||
// dictionary size. If someone complains, this
|
||||
// will be reconsidered.
|
||||
// dictionary size.
|
||||
uint32_t d = coder->options.dict_size - 1;
|
||||
d |= d >> 2;
|
||||
d |= d >> 3;
|
||||
@ -103,9 +108,9 @@ alone_decode(lzma_coder *coder,
|
||||
|
||||
// Another hack to ditch false positives: Assume that
|
||||
// if the uncompressed size is known, it must be less
|
||||
// than 256 GiB. Again, if someone complains, this
|
||||
// will be reconsidered.
|
||||
if (coder->uncompressed_size != LZMA_VLI_UNKNOWN
|
||||
// than 256 GiB.
|
||||
if (coder->picky
|
||||
&& coder->uncompressed_size != LZMA_VLI_UNKNOWN
|
||||
&& coder->uncompressed_size
|
||||
>= (LZMA_VLI_C(1) << 38))
|
||||
return LZMA_FORMAT_ERROR;
|
||||
@ -189,7 +194,7 @@ alone_decoder_memconfig(lzma_coder *coder, uint64_t *memusage,
|
||||
|
||||
extern lzma_ret
|
||||
lzma_alone_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
|
||||
uint64_t memlimit)
|
||||
uint64_t memlimit, bool picky)
|
||||
{
|
||||
lzma_next_coder_init(&lzma_alone_decoder_init, next, allocator);
|
||||
|
||||
@ -208,6 +213,7 @@ lzma_alone_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
|
||||
}
|
||||
|
||||
next->coder->sequence = SEQ_PROPERTIES;
|
||||
next->coder->picky = picky;
|
||||
next->coder->pos = 0;
|
||||
next->coder->options.dict_size = 0;
|
||||
next->coder->options.preset_dict = NULL;
|
||||
@ -223,7 +229,7 @@ lzma_alone_decoder_init(lzma_next_coder *next, lzma_allocator *allocator,
|
||||
extern LZMA_API(lzma_ret)
|
||||
lzma_alone_decoder(lzma_stream *strm, uint64_t memlimit)
|
||||
{
|
||||
lzma_next_strm_init(lzma_alone_decoder_init, strm, memlimit);
|
||||
lzma_next_strm_init(lzma_alone_decoder_init, strm, memlimit, false);
|
||||
|
||||
strm->internal->supported_actions[LZMA_RUN] = true;
|
||||
strm->internal->supported_actions[LZMA_FINISH] = true;
|
||||
|
||||
@ -16,7 +16,8 @@
|
||||
#include "common.h"
|
||||
|
||||
|
||||
extern lzma_ret lzma_alone_decoder_init(lzma_next_coder *next,
|
||||
lzma_allocator *allocator, uint64_t memlimit);
|
||||
extern lzma_ret lzma_alone_decoder_init(
|
||||
lzma_next_coder *next, lzma_allocator *allocator,
|
||||
uint64_t memlimit, bool picky);
|
||||
|
||||
#endif
|
||||
|
||||
@ -54,7 +54,7 @@ auto_decode(lzma_coder *coder, lzma_allocator *allocator,
|
||||
coder->memlimit, coder->flags));
|
||||
} else {
|
||||
return_if_error(lzma_alone_decoder_init(&coder->next,
|
||||
allocator, coder->memlimit));
|
||||
allocator, coder->memlimit, true));
|
||||
|
||||
// If the application wants to know about missing
|
||||
// integrity check or about the check in general, we
|
||||
|
||||
@ -4,14 +4,14 @@
|
||||
.\" This file has been put into the public domain.
|
||||
.\" You can do whatever you want with this file.
|
||||
.\"
|
||||
.TH LZMAINFO 1 "2010-09-27" "Tukaani" "XZ Utils"
|
||||
.TH LZMAINFO 1 "2013-06-30" "Tukaani" "XZ Utils"
|
||||
.SH NAME
|
||||
lzmainfo \- show information stored in the .lzma file header
|
||||
.SH SYNOPSIS
|
||||
.B lzmainfo
|
||||
.RB [ \-\-help ]
|
||||
.RB [ \-\-version ]
|
||||
.RI [ file ]...
|
||||
.RI [ file... ]
|
||||
.SH DESCRIPTION
|
||||
.B lzmainfo
|
||||
shows information stored in the
|
||||
|
||||
@ -37,15 +37,10 @@ static io_buf in_buf;
|
||||
static io_buf out_buf;
|
||||
|
||||
/// Number of filters. Zero indicates that we are using a preset.
|
||||
static size_t filters_count = 0;
|
||||
static uint32_t filters_count = 0;
|
||||
|
||||
/// Number of the preset (0-9)
|
||||
static size_t preset_number = 6;
|
||||
|
||||
/// If a preset is used (no custom filter chain) and preset_extreme is true,
|
||||
/// a significantly slower compression is used to achieve slightly better
|
||||
/// compression ratio.
|
||||
static bool preset_extreme = false;
|
||||
static uint32_t preset_number = LZMA_PRESET_DEFAULT;
|
||||
|
||||
/// Integrity check type
|
||||
static lzma_check check;
|
||||
@ -63,11 +58,9 @@ coder_set_check(lzma_check new_check)
|
||||
}
|
||||
|
||||
|
||||
extern void
|
||||
coder_set_preset(size_t new_preset)
|
||||
static void
|
||||
forget_filter_chain(void)
|
||||
{
|
||||
preset_number = new_preset;
|
||||
|
||||
// Setting a preset makes us forget a possibly defined custom
|
||||
// filter chain.
|
||||
while (filters_count > 0) {
|
||||
@ -80,10 +73,21 @@ coder_set_preset(size_t new_preset)
|
||||
}
|
||||
|
||||
|
||||
extern void
|
||||
coder_set_preset(uint32_t new_preset)
|
||||
{
|
||||
preset_number &= ~LZMA_PRESET_LEVEL_MASK;
|
||||
preset_number |= new_preset;
|
||||
forget_filter_chain();
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
extern void
|
||||
coder_set_extreme(void)
|
||||
{
|
||||
preset_extreme = true;
|
||||
preset_number |= LZMA_PRESET_EXTREME;
|
||||
forget_filter_chain();
|
||||
return;
|
||||
}
|
||||
|
||||
@ -98,6 +102,12 @@ coder_add_filter(lzma_vli id, void *options)
|
||||
filters[filters_count].options = options;
|
||||
++filters_count;
|
||||
|
||||
// Setting a custom filter chain makes us forget the preset options.
|
||||
// This makes a difference if one specifies e.g. "xz -9 --lzma2 -e"
|
||||
// where the custom filter chain resets the preset level back to
|
||||
// the default 6, making the example equivalent to "xz -6e".
|
||||
preset_number = LZMA_PRESET_DEFAULT;
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
@ -134,9 +144,6 @@ coder_set_compression_settings(void)
|
||||
}
|
||||
|
||||
// Get the preset for LZMA1 or LZMA2.
|
||||
if (preset_extreme)
|
||||
preset_number |= LZMA_PRESET_EXTREME;
|
||||
|
||||
if (lzma_lzma_preset(&opt_lzma, preset_number))
|
||||
message_bug();
|
||||
|
||||
|
||||
@ -46,7 +46,7 @@ extern bool opt_auto_adjust;
|
||||
extern void coder_set_check(lzma_check check);
|
||||
|
||||
/// Set preset number
|
||||
extern void coder_set_preset(size_t new_preset);
|
||||
extern void coder_set_preset(uint32_t new_preset);
|
||||
|
||||
/// Enable extreme mode
|
||||
extern void coder_set_extreme(void);
|
||||
|
||||
@ -41,9 +41,10 @@ static bool warn_fchown;
|
||||
static bool try_sparse = true;
|
||||
|
||||
#ifndef TUKLIB_DOSLIKE
|
||||
/// File status flags of standard output. This is used by io_open_dest()
|
||||
/// and io_close_dest().
|
||||
static int stdout_flags = 0;
|
||||
/// Original file status flags of standard output. This is used by
|
||||
/// io_open_dest() and io_close_dest() to save and restore the flags.
|
||||
static int stdout_flags;
|
||||
static bool restore_stdout_flags = false;
|
||||
#endif
|
||||
|
||||
|
||||
@ -397,10 +398,6 @@ io_open_src_real(file_pair *pair)
|
||||
was_symlink = true;
|
||||
|
||||
# elif defined(__NetBSD__)
|
||||
// As of 2010-09-05, NetBSD doesn't document what errno is
|
||||
// used with O_NOFOLLOW. It is EFTYPE though, and I
|
||||
// understood that is very unlikely to change even though
|
||||
// it is undocumented.
|
||||
if (errno == EFTYPE)
|
||||
was_symlink = true;
|
||||
|
||||
@ -441,7 +438,7 @@ io_open_src_real(file_pair *pair)
|
||||
|
||||
flags &= ~O_NONBLOCK;
|
||||
|
||||
if (fcntl(pair->src_fd, F_SETFL, flags))
|
||||
if (fcntl(pair->src_fd, F_SETFL, flags) == -1)
|
||||
goto error_msg;
|
||||
}
|
||||
#endif
|
||||
@ -634,11 +631,11 @@ io_open_dest_real(file_pair *pair)
|
||||
if (!S_ISREG(pair->dest_st.st_mode))
|
||||
return false;
|
||||
|
||||
const int flags = fcntl(STDOUT_FILENO, F_GETFL);
|
||||
if (flags == -1)
|
||||
stdout_flags = fcntl(STDOUT_FILENO, F_GETFL);
|
||||
if (stdout_flags == -1)
|
||||
return false;
|
||||
|
||||
if (flags & O_APPEND) {
|
||||
if (stdout_flags & O_APPEND) {
|
||||
// Creating a sparse file is not possible
|
||||
// when O_APPEND is active (it's used by
|
||||
// shell's >> redirection). As I understand
|
||||
@ -657,12 +654,14 @@ io_open_dest_real(file_pair *pair)
|
||||
return false;
|
||||
|
||||
if (fcntl(STDOUT_FILENO, F_SETFL,
|
||||
stdout_flags & ~O_APPEND))
|
||||
stdout_flags & ~O_APPEND)
|
||||
== -1)
|
||||
return false;
|
||||
|
||||
// Remember the flags so that io_close_dest()
|
||||
// can restore them.
|
||||
stdout_flags = flags;
|
||||
// Disabling O_APPEND succeeded. Mark
|
||||
// that the flags should be restored
|
||||
// in io_close_dest().
|
||||
restore_stdout_flags = true;
|
||||
|
||||
} else if (lseek(STDOUT_FILENO, 0, SEEK_CUR)
|
||||
!= pair->dest_st.st_size) {
|
||||
@ -703,13 +702,12 @@ io_close_dest(file_pair *pair, bool success)
|
||||
{
|
||||
#ifndef TUKLIB_DOSLIKE
|
||||
// If io_open_dest() has disabled O_APPEND, restore it here.
|
||||
if (stdout_flags != 0) {
|
||||
if (restore_stdout_flags) {
|
||||
assert(pair->dest_fd == STDOUT_FILENO);
|
||||
|
||||
const int fail = fcntl(STDOUT_FILENO, F_SETFL, stdout_flags);
|
||||
stdout_flags = 0;
|
||||
restore_stdout_flags = false;
|
||||
|
||||
if (fail) {
|
||||
if (fcntl(STDOUT_FILENO, F_SETFL, stdout_flags) == -1) {
|
||||
message_error(_("Error restoring the O_APPEND flag "
|
||||
"to standard output: %s"),
|
||||
strerror(errno));
|
||||
@ -882,7 +880,7 @@ io_write_buf(file_pair *pair, const uint8_t *buf, size_t size)
|
||||
if (amount == -1) {
|
||||
if (errno == EINTR) {
|
||||
if (user_abort)
|
||||
return -1;
|
||||
return true;
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
@ -203,6 +203,20 @@ parse_indexes(xz_file_info *xfi, file_pair *pair)
|
||||
goto error;
|
||||
}
|
||||
|
||||
// Check that the Stream Footer doesn't specify something
|
||||
// that we don't support. This can only happen if the xz
|
||||
// version is older than liblzma and liblzma supports
|
||||
// something new.
|
||||
//
|
||||
// It is enough to check Stream Footer. Stream Header must
|
||||
// match when it is compared against Stream Footer with
|
||||
// lzma_stream_flags_compare().
|
||||
if (footer_flags.version != 0) {
|
||||
message_error("%s: %s", pair->src_name,
|
||||
message_strm(LZMA_OPTIONS_ERROR));
|
||||
goto error;
|
||||
}
|
||||
|
||||
// Check that the size of the Index field looks sane.
|
||||
lzma_vli index_size = footer_flags.backward_size;
|
||||
if ((lzma_vli)(pos) < index_size + LZMA_STREAM_HEADER_SIZE) {
|
||||
@ -429,7 +443,19 @@ parse_block_header(file_pair *pair, const lzma_index_iter *iter,
|
||||
switch (lzma_block_compressed_size(&block,
|
||||
iter->block.unpadded_size)) {
|
||||
case LZMA_OK:
|
||||
break;
|
||||
// Validate also block.uncompressed_size if it is present.
|
||||
// If it isn't present, there's no need to set it since
|
||||
// we aren't going to actually decompress the Block; if
|
||||
// we were decompressing, then we should set it so that
|
||||
// the Block decoder could validate the Uncompressed Size
|
||||
// that was stored in the Index.
|
||||
if (block.uncompressed_size == LZMA_VLI_UNKNOWN
|
||||
|| block.uncompressed_size
|
||||
== iter->block.uncompressed_size)
|
||||
break;
|
||||
|
||||
// If the above fails, the file is corrupt so
|
||||
// LZMA_DATA_ERROR is a good error code.
|
||||
|
||||
case LZMA_DATA_ERROR:
|
||||
// Free the memory allocated by lzma_block_header_decode().
|
||||
|
||||
@ -26,9 +26,19 @@ xrealloc(void *ptr, size_t size)
|
||||
{
|
||||
assert(size > 0);
|
||||
|
||||
// Save ptr so that we can free it if realloc fails.
|
||||
// The point is that message_fatal ends up calling stdio functions
|
||||
// which in some libc implementations might allocate memory from
|
||||
// the heap. Freeing ptr improves the chances that there's free
|
||||
// memory for stdio functions if they need it.
|
||||
void *p = ptr;
|
||||
ptr = realloc(ptr, size);
|
||||
if (ptr == NULL)
|
||||
message_fatal("%s", strerror(errno));
|
||||
|
||||
if (ptr == NULL) {
|
||||
const int saved_errno = errno;
|
||||
free(p);
|
||||
message_fatal("%s", strerror(saved_errno));
|
||||
}
|
||||
|
||||
return ptr;
|
||||
}
|
||||
|
||||
@ -5,16 +5,17 @@
|
||||
.\" This file has been put into the public domain.
|
||||
.\" You can do whatever you want with this file.
|
||||
.\"
|
||||
.TH XZ 1 "2012-05-27" "Tukaani" "XZ Utils"
|
||||
.TH XZ 1 "2013-06-21" "Tukaani" "XZ Utils"
|
||||
.
|
||||
.SH NAME
|
||||
xz, unxz, xzcat, lzma, unlzma, lzcat \- Compress or decompress .xz and .lzma files
|
||||
.
|
||||
.SH SYNOPSIS
|
||||
.B xz
|
||||
.RI [ option ]...
|
||||
.RI [ file ]...
|
||||
.PP
|
||||
.RI [ option... ]
|
||||
.RI [ file... ]
|
||||
.
|
||||
.SH COMMAND ALIASES
|
||||
.B unxz
|
||||
is equivalent to
|
||||
.BR "xz \-\-decompress" .
|
||||
@ -708,7 +709,7 @@ be dramatically higher than that of the single-threaded mode.
|
||||
DecMem contains the decompressor memory requirements.
|
||||
That is, the compression settings determine
|
||||
the memory requirements of the decompressor.
|
||||
The exact decompressor memory usage is slighly more than
|
||||
The exact decompressor memory usage is slightly more than
|
||||
the LZMA2 dictionary size, but the values in the table
|
||||
have been rounded up to the next full MiB.
|
||||
.RE
|
||||
@ -897,11 +898,14 @@ if threading will be enabled by default.
|
||||
.SS "Custom compressor filter chains"
|
||||
A custom filter chain allows specifying
|
||||
the compression settings in detail instead of relying on
|
||||
the settings associated to the preset levels.
|
||||
the settings associated to the presets.
|
||||
When a custom filter chain is specified,
|
||||
the compression preset level options
|
||||
(\fB\-0\fR ... \fB\-9\fR and \fB\-\-extreme\fR) are
|
||||
silently ignored.
|
||||
preset options (\fB\-0\fR ... \fB\-9\fR and \fB\-\-extreme\fR)
|
||||
earlier on the command line are forgotten.
|
||||
If a preset option is specified
|
||||
after one or more custom filter chain options,
|
||||
the new preset takes effect and
|
||||
the custom filter chain options specified earlier are forgotten.
|
||||
.PP
|
||||
A filter chain is comparable to piping on the command line.
|
||||
When compressing, the uncompressed input goes to the first filter,
|
||||
@ -934,6 +938,15 @@ Extra commas in
|
||||
are ignored.
|
||||
Every option has a default value, so you need to
|
||||
specify only those you want to change.
|
||||
.PP
|
||||
To see the whole filter chain and
|
||||
.IR options ,
|
||||
use
|
||||
.B "xz \-vv"
|
||||
(that is, use
|
||||
.B \-\-verbose
|
||||
twice).
|
||||
This works also for viewing the filter chain options used by presets.
|
||||
.TP
|
||||
\fB\-\-lzma1\fR[\fB=\fIoptions\fR]
|
||||
.PD 0
|
||||
@ -976,13 +989,12 @@ The only supported modifier is currently
|
||||
.BR e ,
|
||||
which matches
|
||||
.BR \-\-extreme .
|
||||
The default
|
||||
.I preset
|
||||
is
|
||||
.BR 6 ,
|
||||
from which the default values for the rest of the LZMA1 or LZMA2
|
||||
If no
|
||||
.B preset
|
||||
is specified, the default values of LZMA1 or LZMA2
|
||||
.I options
|
||||
are taken.
|
||||
are taken from the preset
|
||||
.BR 6 .
|
||||
.TP
|
||||
.BI dict= size
|
||||
Dictionary (history buffer)
|
||||
@ -1578,7 +1590,7 @@ is supported only together with
|
||||
.BR \-\-info\-memory ,
|
||||
and
|
||||
.BR \-\-list .
|
||||
It will be supported for normal compression and
|
||||
It will be supported for compression and
|
||||
decompression in the future.
|
||||
.
|
||||
.SS Version
|
||||
@ -2179,14 +2191,15 @@ The output can vary even between different
|
||||
builds of the same XZ Utils version,
|
||||
if different build options are used.
|
||||
.PP
|
||||
The above means that implementing
|
||||
The above means that once
|
||||
.B \-\-rsyncable
|
||||
to create rsyncable
|
||||
.B .xz
|
||||
files is not going to happen without
|
||||
freezing a part of the encoder
|
||||
implementation, which can then be used with
|
||||
.BR \-\-rsyncable .
|
||||
has been implemented,
|
||||
the resulting files won't necessarily be rsyncable
|
||||
unless both old and new files have been compressed
|
||||
with the same xz version.
|
||||
This problem can be fixed if a part of the encoder
|
||||
implementation is frozen to keep rsyncable output
|
||||
stable across xz versions.
|
||||
.
|
||||
.SS "Embedded .xz decompressors"
|
||||
Embedded
|
||||
|
||||
@ -4,17 +4,17 @@
|
||||
.\" This file has been put into the public domain.
|
||||
.\" You can do whatever you want with this file.
|
||||
.\"
|
||||
.TH XZDEC 1 "2010-09-27" "Tukaani" "XZ Utils"
|
||||
.TH XZDEC 1 "2013-06-30" "Tukaani" "XZ Utils"
|
||||
.SH NAME
|
||||
xzdec, lzmadec \- Small .xz and .lzma decompressors
|
||||
.SH SYNOPSIS
|
||||
.B xzdec
|
||||
.RI [ option ]...
|
||||
.RI [ file ]...
|
||||
.RI [ option... ]
|
||||
.RI [ file... ]
|
||||
.br
|
||||
.B lzmadec
|
||||
.RI [ option ]...
|
||||
.RI [ file ]...
|
||||
.RI [ option... ]
|
||||
.RI [ file... ]
|
||||
.SH DESCRIPTION
|
||||
.B xzdec
|
||||
is a liblzma-based decompression-only tool for
|
||||
|
||||
@ -62,13 +62,13 @@ help(void)
|
||||
{
|
||||
printf(
|
||||
"Usage: %s [OPTION]... [FILE]...\n"
|
||||
"Uncompress files in the ." TOOL_FORMAT " format to the standard output.\n"
|
||||
"Decompress files in the ." TOOL_FORMAT " format to standard output.\n"
|
||||
"\n"
|
||||
" -c, --stdout (ignored)\n"
|
||||
" -d, --decompress (ignored)\n"
|
||||
" -k, --keep (ignored)\n"
|
||||
" -d, --decompress (ignored, only decompression is supported)\n"
|
||||
" -k, --keep (ignored, files are never deleted)\n"
|
||||
" -c, --stdout (ignored, output is always written to standard output)\n"
|
||||
" -q, --quiet specify *twice* to suppress errors\n"
|
||||
" -Q, --no-warn (ignored)\n"
|
||||
" -Q, --no-warn (ignored, the exit status 2 is never used)\n"
|
||||
" -h, --help display this help and exit\n"
|
||||
" -V, --version display the version number and exit\n"
|
||||
"\n"
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user