Commit Graph

145 Commits

Author SHA1 Message Date
Eric Andersen
1acfb72e71 Manuel Novoa III writes:
Hello Rob,

Here's a patch to your bunzip-3.c file.  Nice work btw.

One minor bug fix... checking for error return when read()ing.
Some size/performance optimizations as well.  One instance of
memset() seems unnecssary.  You might want to take a look.

Anyway, on my machine, decompressing linux-2.6.0-test7.tar.bz2
to /dev/null gave the following times:

        bunzip-3.c    bzcat (system)   bunzip-3.c (patched)
real    0m24.420s     0m22.725s        0m20.701s
user    0m23.930s     0m22.170s        0m20.180s
sys     0m0.070s      0m0.080s         0m0.140s

Size of the patched version is comparable (slightly larger or
smaller depending on compiler flags).

Manuel
2003-10-18 01:59:46 +00:00
Eric Andersen
0d6d88a205 Rob Landley's new micro-bunzip version 3. Rob writes:
The API for using partial writes, as described in my last message, sucked.

So here's a patch against my last patch that changes things so that
write_bunzip_data calls read_bunzip_data itself behind the scenes whenever
necessary.  So usage is now just start_bunzip(), write_bunzip_data() until it
returns a negative number, and then the cleanup at the end of
uncompressStream.

It adds 32 bytes to the executable, but it should allow the caller (tar) to be
simplified enough to compensate.  Total -Os stripped exe size now 6856 bytes.

Rob

P.S.  I attached the whole C file so you don't have to keep incremental
patches straight if you don't want to. :)

P.S.  In the version I'm banging on now, I've simplified the license to just
LGPL.  I read the OSL a bit more closely and the patent termination clause
would have bit IBM in their counter-suit of SCO if the code in question had
been OSL instead of GPL, and I've decided I just don't want to beta-test
legal code right now.
2003-10-18 01:58:35 +00:00
Glenn L McGrath
beb3bbd991 Fix handling of hardlinks when OLDGNU and GNU extensions arent enabled. 2003-09-12 06:49:09 +00:00
Glenn L McGrath
ef91bf67ed Use the typeflag to identify if its a hardlink on OLD and GNU posix
modes, fixes a bug extracting hardlinks to symlinks.
2003-09-12 06:31:28 +00:00
Eric Andersen
2fdba24620 Marc A. Lehmann writes:
The tar -x command in busybox does not restore the file mode correctly.

The reason is most probably this code in
archival/libunarachive/data_extract_all.c:

       chmod(file_header->name, file_header->mode);
       chown(file_header->name, file_header->uid, file_header->gid);

chown clears the set*id bits (on current versions of linux :). Flipping
the order around fixes the problem.

(tested with 1.00pre3 from cvs).
2003-09-11 08:32:40 +00:00
Glenn L McGrath
87af49f26b If a tar entry is a regualr file ending in a '/' then its really a
directory.
From http://www.gnu.org/manual/tar/html_node/tar_123.html
REGTYPE
AREGTYPE
    These flags represent a regular file. In order to be compatible with
older versions of tar, a typeflag value of AREGTYPE should be silently
recognized as a regular file. New archives should be created using
REGTYPE. Also, for backward compatibility, tar treats a regular file
whose name ends with a slash as a directory.
2003-09-09 17:41:03 +00:00
Glenn L McGrath
4cee66d5a8 Dont unlink when testing !
Always preserve creation date
Disable the -p option its for modification date
Remove some cpio header debugging noise
Syncronise file listing behaviour with upstream.
2003-08-28 19:12:23 +00:00
Glenn L McGrath
3d5828fb6d Change hardlink handling for tar to work the same way as cpio 2003-08-14 02:55:15 +00:00
Glenn L McGrath
91e464632b Fix bug when handling debian packages.
If we read the contents of compressed files within the ar archive,
e.g. control.tar.gz, then file position gets all out of whack, so
it has to be reset before reading thenext header.
2003-07-31 01:53:50 +00:00
Eric Andersen
1b0075d243 Fixup problem unconditionally converting all hard links to symlinks. 2003-07-16 06:29:51 +00:00
Eric Andersen
cb81e6484d Update a bunch of docs. Run a script to update my email addr. 2003-07-14 21:21:08 +00:00
Eric Andersen
e3393513c5 Be certain to not abort prematurely when reading stuff from pipes. 2003-07-05 23:10:27 +00:00
Glenn L McGrath
b838420fd5 Handle hard links by converting them to symlinks 2003-06-12 13:47:16 +00:00
Glenn L McGrath
afc01cd485 unlink a previous file before its extracted 2003-04-21 11:03:29 +00:00
Manuel Novoa III
cad5364599 Major coreutils update. 2003-03-19 09:13:01 +00:00
Glenn L McGrath
826b48b624 Woops, my gunzip fix broke unzip, these cant be static 2003-02-09 12:00:17 +00:00
Glenn L McGrath
1d21fb3c23 Moved to libunarchive/unzip.c 2003-02-09 04:49:17 +00:00
Glenn L McGrath
cc616928d5 Fix endian probelm on PPC, i had different types for an extern variable. 2003-02-09 04:46:34 +00:00
Glenn L McGrath
21110a0aa2 Fix long standing bug with old gnu tar files, add a check so tar will
complain "unknown file type" if it tries to extract an oldgnu tar file
and TAR_FEATURE_OLDGNU_COMPATABILITY sint defined.
Print a warning if unisupported gnu extensions are encountered.
2003-01-28 01:45:48 +00:00
Eric Andersen
f4b273cbb4 A cleaner cleanup that avoids passing an off_t to scanf 2002-12-11 21:45:08 +00:00
Eric Andersen
9701411d21 squash a warning 2002-12-11 21:34:04 +00:00
Glenn L McGrath
b72a735a32 rpm applet by Laurence Anderson 2002-12-10 00:17:22 +00:00
Glenn L McGrath
66125c8065 Move add_to_list from libunarchive to libbb so it can be of more general use (eg ifupdown). Changed the name to llist_add_to as i plan on adding more llist_ functions as needed (e.g. llist_free). 2002-12-08 00:54:33 +00:00
Glenn L McGrath
6f9b45b9ef Unlink before mkdir, mknod, symlink to overwrite 2002-12-04 22:26:30 +00:00
Glenn L McGrath
f3faf41334 fix warning 2002-12-01 21:52:40 +00:00
Glenn L McGrath
fedbfe4059 Style 2002-11-28 09:09:47 +00:00
Glenn L McGrath
eda4f53f2e Add an input buffer (currently 32kB) to speed things up heaps, it still requires 25% longer to decompress as compared to upstream. 2002-11-24 06:01:20 +00:00
Glenn L McGrath
b7a76df4d1 Fix long filename support 2002-11-23 10:44:47 +00:00
Glenn L McGrath
83bf47c02f Speed and memory usage improvements from Laurence Adnerson 2002-11-20 22:00:31 +00:00
Glenn L McGrath
0126fda5bb read_gz patch 3 from Laurence Anderson 2002-11-20 06:46:46 +00:00
Glenn L McGrath
a0d395eac9 Use read_gz, remove fork() woohoo! 2002-11-19 08:22:03 +00:00
Glenn L McGrath
fd73b8c2ce Patch from Laurence Anderson to provide a read_gz function, doesnt require fork(), pipe(), consistent with read_bz2 and more flexible. 2002-11-17 21:33:30 +00:00
Glenn L McGrath
02fcd2d2df Allow short reads as we are looping anyway. 2002-11-15 21:58:30 +00:00
Glenn L McGrath
e356883ffb Minor cleanups 2002-11-13 00:24:20 +00:00
Glenn L McGrath
034c371bb2 Reduce block size to 512 to prevent short read's when reading from a pipe 2002-11-12 23:34:15 +00:00
Glenn L McGrath
5703341123 #ifdef, not just #if... grrr 2002-11-08 08:07:38 +00:00
Glenn L McGrath
ea12202288 Terminate the buffer with a '\0' 2002-11-06 22:31:45 +00:00
Glenn L McGrath
7f2a95319b Fail silently if a partial tar header is read as tar.bz2 is leaving trailing junk (not sure why), add some missing files 2002-11-05 02:56:57 +00:00
Glenn L McGrath
18bbca18ac enable .tar.bz2 for dpkg-deb 2002-11-05 01:52:23 +00:00
Glenn L McGrath
8e94098423 Change filter paramaters, filters can be more powefull now 2002-11-04 23:47:31 +00:00
Glenn L McGrath
237ae42fc9 Abstract read and seek in unarchiving code, convert bunzip to file descriptors, support tar -j 2002-11-03 14:05:15 +00:00
Glenn L McGrath
2fc54a9258 Fix #define syntax 2002-11-03 12:50:33 +00:00
Glenn L McGrath
6ab32eb34c Move data_extract_all_prefix to dpkg, its only used there. 2002-11-03 11:57:10 +00:00
Glenn L McGrath
b8e556e5f5 Add copyright notice and license, use strcat+strcpy instead of sprintf 2002-11-03 11:46:49 +00:00
Glenn L McGrath
9c60b29071 Use xread_char to save a few bytes, fix indenting of comments 2002-11-03 10:57:25 +00:00
Glenn L McGrath
60bce4905c Move bunzip2 idecompression code to libunarchive 2002-11-03 07:28:38 +00:00
Glenn L McGrath
bf1cc8b1b7 Make uncompress a seperate applet so it doesnt pull in all the gunzip code 2002-11-01 23:38:54 +00:00
Glenn L McGrath
d6aec8619d Allow short reads when filling compress buffer 2002-11-01 22:28:13 +00:00
Glenn L McGrath
b2f67b4068 Make it a fatal error if bad chksum or crc, if not we should return an error code 2002-11-01 22:08:59 +00:00
Glenn L McGrath
9ffd5776eb Move unzip.c uncompress.c from libbb to archiveal/libunarchive 2002-10-22 01:07:32 +00:00
Glenn L McGrath
61b7904afd Update dpkg to use new unarchive code 2002-10-19 10:40:55 +00:00
Glenn L McGrath
c5c1a8a112 Fix exclude/include problem 2002-10-19 06:19:22 +00:00
Glenn L McGrath
05fa661123 Find a string in a list 2002-10-19 05:10:51 +00:00
Glenn L McGrath
25bca9566d Remove entries from the accept list as they are matched so we can determine if any files that were specified in the list wernt found. 2002-10-19 02:18:51 +00:00
Eric Andersen
71ae64bdc6 last_patch61 from vodz:
New complex patch for decrease size devel version. Requires previous patch.
    Also removed small problems from dutmp and tar applets.
Also includes vodz' last_patch61_2:
    Last patch correcting comment for #endif and more integrated
    with libbb (very reduce size if used "cat" applet also).
    Requires last_patch61 for modutils/config.in.
2002-10-10 04:20:21 +00:00
Eric Andersen
d9d47c3078 Patch from Konstantin Isakov <ikm@pisem.net>:
In most cases, dirname returns the same argument it was given, so this code
    works nice, but there's one special case: when the name contains no
    dirname, it returns "." (stored statically in the body of itself), and we
    get a segfault in attempt to free() it.
This patch fixes this problem.
2002-09-30 20:14:57 +00:00
Glenn L McGrath
2e41d0cb77 Fix compress support and prevent a segfault 2002-09-27 06:46:02 +00:00
Glenn L McGrath
69eab26401 Remove files made obsolete by new unarchiving code 2002-09-25 03:04:03 +00:00
Glenn L McGrath
7ca04f328e New common unarchive code. 2002-09-25 02:47:48 +00:00
Manuel Novoa III
6c32a8add4 Modified so that it "works" for archs other than i386... arm in particular.
Also tried to clean up the logic a little, and ensure that read errors
or invalid archives resulted in error returns.  This could use a lot more
work... Volunteers?
2002-09-17 21:02:16 +00:00
Eric Andersen
8fede28c74 Patch from Matthias Lang <matthias@corelatus.se> to fix gunzip
error handling and prevent gunzip from hanging.
2002-09-16 07:25:41 +00:00
Glenn L McGrath
b3c4e9add5 Support for GNU style long filename and linknames 2002-09-15 16:54:49 +00:00
Glenn L McGrath
4534af2763 replace some global const ints with defines 2002-08-22 19:31:35 +00:00
Glenn L McGrath
0775a07d87 Specify cast 2002-08-22 19:22:32 +00:00
Glenn L McGrath
9fef17dec3 Run through indent, fix comments 2002-08-22 18:41:20 +00:00
Glenn L McGrath
99b12543cf Run through ident, fix comments 2002-08-22 17:47:09 +00:00
Glenn L McGrath
75762705a3 Honour the USTAR prefix field, this enables a 155 byte path length plus the normal 100 byte filename.
The catch is gnu tar cannot create archives that use the prefix field, you need to use s-tar.
2002-08-22 11:50:31 +00:00
Glenn L McGrath
1d23f3a492 Enable support for the old tar header format, enable via menu's 2002-08-13 05:06:43 +00:00
Robert Griebl
d378c3149c Applied vodz' patches #49 and #50 (with a small correction in runshell.c)
#49: I found one memory overflow and memory leak in "ln" applet.
Last patch reduced also 54 bytes. ;)

#50: I found bug in loginutils/Makefile.in.
New patch have also new function to libbb and
aplied this to applets and other cosmetic changes.
2002-07-19 00:05:54 +00:00
Eric Andersen
2276d83639 Fixup warnings and undefined operations that show up in gcc-3.1
-Erik
2002-07-11 11:11:56 +00:00
Glenn L McGrath
a94a06a38e Patch from Randolfe Averty to fixup package conflict checks, cleanup some memory leaks and reorganise dependency checking.
Some further memory leaks fixed by me.
2002-05-29 13:45:34 +00:00
Robert Griebl
94a6a956f0 Support old-style compress (.Z) files via libbb / unzip( ) calls
(configurable) - When enabled an applet "uncompress" is also made
available (oddname to gunzip)
[the cvs add for this file got lost somehow...]
2002-05-19 19:00:14 +00:00
Robert Griebl
f6495eb767 Support old-style compress (.Z) files via libbb / unzip( ) calls
(configurable) - When enabled an applet "uncompress" is also made
available (oddname to gunzip)
2002-05-15 22:13:47 +00:00
Eric Andersen
114de55668 Patch from Laurence Anderson <L.D.Anderson@warwick.ac.uk> for
better tape drive support in tar/cpio by using an intervening
pipe...
2002-04-13 08:43:01 +00:00
Eric Andersen
85208e2ab9 Completely rework the config system so that it no longer annoys me to work on
the busybox development tree.  This eliminates the use of recursive make, and
once again allows us to run 'make' in a subdirectory with the expected result.
And things are now much faster too.  Greatly improved IMHO...
 -Erik
2002-04-12 12:05:57 +00:00
Eric Andersen
89de1e7930 Reinitialize initial shift register value for on each pass.
-Erik
2002-03-20 13:30:40 +00:00
Glenn L McGrath
87ac7028e0 unzip applet by Laurence Anderson
----------------------------------------------------------------------
2002-01-02 13:52:26 +00:00
Matt Kraai
1f0c43668a Remove == TRUE' tests and convert != TRUE' and `== FALSE' tests to use !. 2001-12-20 23:13:26 +00:00
Eric Andersen
db930948a9 More copyright and email addr cleanups 2001-12-06 08:20:14 +00:00
Aaron Lehmann
b9df470c4d Commit my improvement on Rodney Brown's patch to g(un)zip, decreasing
binary size.
2001-12-06 03:22:43 +00:00
Glenn L McGrath
249f39a265 Simplify unzip(), remove unused checks and unneccessary variables 2001-12-05 16:01:02 +00:00
Glenn L McGrath
ef03dbcd4d Simplify CRC table generation 2001-12-05 13:08:03 +00:00
Glenn L McGrath
38288bbf4c gunzip was incorrectly reporting a failed crc and length (discovered by
Chang, Shu-Hao).  The bitbuffer needs to be unwound after decompression,
as it was eating into the crc/size field.
2001-11-29 06:36:56 +00:00
Glenn L McGrath
7134d6581b Attempt to fix libc compiling error regarding off_t 2001-10-27 13:14:52 +00:00
Glenn L McGrath
95ebf618b7 *** empty log message *** 2001-10-25 14:18:08 +00:00
Eric Andersen
74400ccfd0 Scrub up some function prototypes.
-Erik
2001-10-18 04:11:39 +00:00
Eric Andersen
044228d5ec This is vodz' latest patch. Sorry it took so long...
1) ping cleanup (compile fix from this patch already applied).
    2) traceroute call not spare ntohl() now (and reduce size);
    3) Fix for functions not declared static in insmod, ash, vi and mount.
    4) a more simple API cmdedit :))
    5) adds "stopped jobs" warning to ash on Ctrl-D and fixes "ignoreeof" option
    6) reduce exporting library function index->strchr (traceroute), bzero->memset (syslogd)
2001-07-17 01:12:36 +00:00
Glenn L McGrath
5e66a26eaa Dont setvbuff in here, must be called just after stream is initialised, glibc tolerates using it later, uclibc doesnt 2001-07-13 06:51:56 +00:00
Glenn L McGrath
93febe672a free coniditionally, just to make it play nice with dmalloc which is incompatable with standard free() 2001-07-11 07:25:01 +00:00
Manuel Novoa III
a2949aa217 Add some missing includes to kill warnings when building with the default
Config.h and using gcc's -fno-builtin.  There are probably other files
with the similar problems.
Also, if building against uClibc, don't include asm/unistd.h in syscalls.c
and module_syscalls.c.
2001-06-29 18:59:32 +00:00
Eric Andersen
0d8cc1670c Fix a type promotion bug discivered and analyzed by Alan Modra
<amodra@bigpond.net.au>, which caused false checksum errors
2001-06-27 06:15:50 +00:00
Eric Andersen
04095e58fb Move messages.c to libbb. Make each string in messages.c be its own .o file.
This way, we can new get rid of all that tedious #define rubbish we used to
need to enable specific messages.  This way is enormously simpler, and as a
bonus also ends up saving us 96 bytes.
 -Erik
2001-04-25 05:39:18 +00:00
Matt Kraai
b181056e06 Eliminated seeks so that we work correctly on pipes, and removed reliance on
undefined evaluation ordering.  Thanks to Anthony Towns for explanation and
solution.
2001-04-18 14:49:55 +00:00
Glenn L McGrath
f70f6cef39 Disable sigterm 2001-04-11 15:09:30 +00:00
Glenn L McGrath
7fd92949d0 Move unzip, gz_open, gz_close to libbb 2001-04-11 03:11:33 +00:00