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55 Commits

Author SHA1 Message Date
Denys Vlasenko
f16727ebbb decompress_bunzip2: code shrink ~5 bytes 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-30 00:55:02 +02:00
Denys Vlasenko
0c576975c8 decompress_bunzip2: code shrink ~10 bytes 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-30 00:54:10 +02:00
Denys Vlasenko
5d49b72f1a decompress_bunzip2: add profiling data to comment. no code changes 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-29 19:26:38 +02:00
Denys Vlasenko
1014a9adbf decompress_bunzip2: relieve register pressure in hot function read_bunzip 
function                                             old     new   delta
unpack_bz2_stream                                    318     329     +11
read_bunzip                                          268     262      -6

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-29 19:01:58 +02:00
Denys Vlasenko
bf3bec51fc decompress_bunzip2: keep bd->writeCRC in CPU reg in the hot loop 
-5 bytes on 64-bit, +7 bytes on 32-bit.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-29 18:16:29 +02:00
Denys Vlasenko
36ef0a677e decompress_bunzip2: code shrink 
function                                             old     new   delta
get_next_block                                      1828    1827      -1
get_bits                                             164     156      -8
read_bunzip                                          304     261     -43
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-52)             Total: -52 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-29 16:05:05 +02:00
Denys Vlasenko
fb132e4737 whitespace cleanup 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-29 11:46:52 +02:00
Denys Vlasenko
caddfc8339 decompress_bunzip2: handle concatenated .bz2 files 
function                                             old     new   delta
unpack_bz2_stream                                    207     307    +100
start_bunzip                                         199     209     +10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 110/0)             Total: 110 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-10-28 23:08:53 +02:00
Denys Vlasenko
0ef64bdb40 *: make GNU licensing statement forms more regular 
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-16 20:14:46 +02:00
Denys Vlasenko
620e863ba2 bzip2 decompression: simple code shrink 
function                                             old     new   delta
unpack_bz2_stream_prime                               60      55      -5
get_header_tar                                      1508    1496     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-30 19:43:44 +02:00
Denis Vlasenko
5e34ff29bc *: mass renaming of USE_XXXX to IF_XXXX 
and SKIP_XXXX to IF_NOT_XXXX - the second one was especially
badly named. It was not skipping anything!
 2009-04-21 11:09:40 +00:00
Denis Vlasenko
e9ad84dfd4 *: refactor handling of archived files. "tar f file.tar.lzma" now works too. 
function                                             old     new   delta
unpack_Z_stream                                        -    1229   +1229
open_zipped                                            -     176    +176
unpack_bz2_stream_prime                                -      60     +60
tar_main                                             642     677     +35
find_main                                            406     418     +12
sv_main                                             1222    1233     +11
decode_format_string                                 829     837      +8
cmp_main                                             641     649      +8
popstring                                            134     140      +6
filter_accept_list_reassign                          120     125      +5
parse_and_put_prompt                                 800     804      +4
passwd_main                                         1053    1049      -4
make_new_name_gunzip                                 119     114      -5
rpm_main                                            1688    1670     -18
prepare                                              302     283     -19
xmalloc_open_zipped_read_close                       135      61     -74
uncompress                                          1229       -   -1229
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 8/5 up/down: 1554/-1349)        Total: 205 bytes
 2008-08-05 13:10:34 +00:00
Denis Vlasenko
86d88c0990 bunzip2: make proper fix for the problem "fixed" in rev. 22521 
Thanks for Rob Landley <rob@landley.net>
 2008-06-28 18:10:09 +00:00
Denis Vlasenko
defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on 
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
 2008-06-27 02:52:20 +00:00
Denis Vlasenko
5fb79535ee bunzip2: fix an uncompression error. Add the example to testsuite. 2008-06-26 20:27:42 +00:00
Denis Vlasenko
f5d8c90d73 style fixes, no code changes 2008-06-26 14:32:57 +00:00
Bernhard Reutner-Fischer
5e25ddb7d3 - use STD*_FILENO some more. No object-code changes 2008-05-19 09:48:17 +00:00
Denis Vlasenko
6b06cb80be more of -Wall fixes from Cristian Ionescu-Idbohrn. 
Some are fixing real bugs.

function                                             old     new   delta
syslogd_main                                         938     958     +20
get_signum                                           136     143      +7
obj_load                                             777     782      +5
recv_from_to                                         210     214      +4
get_next_block                                      1795    1799      +4
display_topmem_process_list                         1117    1121      +4
logread_main                                         484     487      +3
buffer_fill_and_print                                 73      76      +3
kill_main                                            687     689      +2
ll_remember_index                                    240     241      +1
do_stats                                             452     453      +1
if_readconf                                          166     165      -1
display_process_list                                1192    1191      -1
run_applet_and_exit                                  507     505      -2
print_signames                                        33      31      -2
parse_one_line                                      1092    1090      -2
find_out_spec                                         57      55      -2
add_ksymoops_symbols                                 421     419      -2
ash_main                                            1407    1402      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/8 up/down: 54/-17)            Total: 37 bytes
 2008-05-15 21:30:45 +00:00
Denis Vlasenko
52a4388d95 bunzip: small code shrink and consmetics 
read_bunzip                                          276     283      +7
get_bits                                             184     162     -22
get_next_block                                      1833    1810     -23
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 7/-45)             Total: -38 bytes
 2007-10-10 20:53:41 +00:00
Denis Vlasenko
66bbfbd581 bunzip2: trim verbose messages 
text    data     bss     dec     hex filename
 770752    1029    9696  781477   beca5 busybox_old
 770691    1029    9696  781416   bec68 busybox_unstripped
 2007-09-28 23:45:56 +00:00
Denis Vlasenko
c14d39e83a rmp: add optional support for bz2 data. +50 bytes of code 2007-06-08 13:05:39 +00:00
Denis Vlasenko
4b924f3a5c whitespace fixes 2007-05-30 00:29:55 +00:00
Denis Vlasenko
c6758a07c6 make compressed help code NOMMU- and NOFORK-friendly - 
no forking anymore, bunzip2 unpack routine now does all it in memory.
 2007-04-10 21:40:19 +00:00
Denis Vlasenko
246b5c3916 one-liner: fix indentation 2007-04-10 17:18:12 +00:00
Denis Vlasenko
b38cf3ff8a bunzip2: big style cleanup. No code changes apart from one s/write/safe_write/ 
(verified with objdump).
 2007-04-10 17:16:33 +00:00
Bernhard Reutner-Fischer
febe3c4211 - sed -e "s/char[[:space:]]*\*[[:space:]]*argv\[\]/char **argv/g" 2007-04-04 20:52:03 +00:00
Denis Vlasenko
bf0a201008 style fixes 
last xcalloc replaced by xzalloc
 2006-12-26 10:42:51 +00:00
Denis Vlasenko
97a8dd3857 g[un]zip: add support for -v (verbose). 
Add CONFIG_DESKTOP, almost all bloat from this change
is hidden under that.
 2006-10-01 15:55:11 +00:00
Rob Landley
d921b2ecc0 Remove bb_ prefixes from xfuncs.c (and a few other places), consolidate 
things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes...  General cleanup pass.  What I've
been doing for the last couple days.

And it conflicts!  I've removed httpd.c from this checkin due to somebody else
touching that file.  It builds for me.  I have to catch a bus.  (Now you know
why I'm looking forward to Mercurial.)
 2006-08-03 15:41:12 +00:00
Rob Landley
1ec5b29054 More size shrinkage. 2006-05-29 07:42:02 +00:00
Rob Landley
e66c7efc31 Busybox is under the GPL. 2006-04-14 19:25:01 +00:00
Rob Landley
c57ec37959 Patch from Rob Sullivan to consolidate crc32 table generation. 2006-04-10 17:07:15 +00:00
Bernhard Reutner-Fischer
cfb53dfd5e - include proper prototypes in libunarchive. 2006-04-02 21:50:01 +00:00
Rob Landley
dfba741457 Robert P. Day removed 8 gazillion occurrences of "extern" on function 
definitions.  (That should only be on prototypes.)
 2006-03-06 20:47:33 +00:00
Rob Landley
e7c43b66d7 Cleanup patch from Denis Vlasenko. Mostly variants of removing the if(x) 
from before "if(x) free(x)".
 2006-03-01 16:39:45 +00:00
Rob Landley
efae294b15 Fix for an integer overflow bug that could cause a segfault on certain 
pathological archives.

(Unlikely to have security implications, the only way to trigger it basically
wound up doing memset(dbuf,x,2^31) and triggering an immediate segfault.  The
test basically gives us a more polite error message.)

Thanks to Ned Ludd and the Gentoo security guys for finding this.
 2006-02-17 05:19:40 +00:00
Rob Landley
2c98c40ec8 The tendency of vi to auto-indent can be really annoying at times. 2006-02-17 05:12:03 +00:00
Rob Landley
f856eabcde More whitespace than you can possibly imagine... 2006-02-17 03:43:49 +00:00
Tim Riker
c1ef7bdd8d just whitespace 2006-01-25 00:08:53 +00:00
Rob Landley
1ff789c567 Stop gcc4 from nit-picking about signedness of char *. 2005-09-25 03:12:26 +00:00
Rob Landley
a8b98d63e7 Don't document compiler warnings. _FIX_ compiler warnings. 2004-11-16 12:07:04 +00:00
Eric Andersen
b225e2a76b Fixup some warnings 2004-08-28 00:43:07 +00:00
Eric Andersen
aff114c33d Larry Doolittle writes: 
This is a bulk spelling fix patch against busybox-1.00-pre10.
If anyone gets a corrupted copy (and cares), let me know and
I will make alternate arrangements.

Erik - please apply.

Authors - please check that I didn't corrupt any meaning.

Package importers - see if any of these changes should be
passed to the upstream authors.

I glossed over lots of sloppy capitalizations, missing apostrophes,
mixed American/British spellings, and German-style compound words.

What is "pretect redefined for test" in cmdedit.c?

Good luck on the 1.00 release!

      - Larry
 2004-04-14 17:51:38 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Glenn L McGrath
5699b8525e Move from read_gz to the pipe()+fork() method. 
open_transformer(), common code for pipe+fork.
Function pointer for read() no longer needed.
Allow inflate to be initialised with a specified buffer size to avoid
over-reading.
Reset static variables in inflate_get_next_window to fix a bug where
only the first file in a .zip would be be extracted.
 2003-11-15 23:19:05 +00:00
Glenn L McGrath
2685724e23 Fix tar -j support 
Use the old fork() method of tar compression support, rather than
read_bz2....
 - (*uncompress)(int in, int out) seems like a more natural interface
for compression code.
 - it might improve performance by seperating the work into one cpu
bound and one io bound process.
 - There is extra code required to do read_[gz|bunzip] since (*uncompress)(int in,
int out) will normally be used by the standalone compression applet.

There have been problems with this method so if you see a "Short read"
error let me know.
 2003-11-05 04:55:58 +00:00
Eric Andersen
8179cf2b78 Put back the tar support stubs (and warnings) for now. 2003-10-31 08:52:57 +00:00
Glenn L McGrath
1c834407e3 Add some error messages, use xmalloc instead of malloc 2003-10-28 23:32:12 +00:00
Eric Andersen
5fa4db29f7 Another bzip2 update and speedup from Manuel Novoa III, with some 
additional changes (primarily lots of comments) from Rob Landley.
 2003-10-23 06:52:01 +00:00
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