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b4c11c1397
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359 Commits

Author SHA1 Message Date
Denys Vlasenko
b4c11c1397 libarchive: add capability to unpack to mem.buffer 
The performance and number of processes for a "depmod -a" with gzipped
modules was abysmal. This patch adds a code path without fork,
benefiting all users of xmalloc_open_zipped_read_close.

"modinfo radeon.ko.gz", a single-file reader, got 30% faster.
"depmod -a", which used to fork over 800 times, got 20% faster.

Heavily based on a patch by Lauri Kasanen <curaga@operamail.com>

function                                             old     new   delta
setup_transformer_on_fd                                -     159    +159
transformer_write                                      -     122    +122
fork_transformer                                       -     112    +112
xmalloc_open_zipped_read_close                        63     118     +55
read_bunzip                                         1866    1896     +30
xtransformer_write                                     -      19     +19
unzip_main                                          2449    2462     +13
bbunpack                                             755     766     +11
unpack_lzma_stream                                  2717    2723      +6
unpack_xz_stream                                    2393    2397      +4
unpack_Z_stream                                     1173    1175      +2
inflate_unzip                                        111     105      -6
check_signature16                                     70      63      -7
unpack_bz2_stream                                    359     349     -10
unpack_unxz                                           12       -     -12
unpack_unlzma                                         12       -     -12
unpack_uncompress                                     12       -     -12
unpack_gunzip                                         12       -     -12
unpack_bunzip2                                        12       -     -12
open_transformer                                     106      92     -14
inflate_unzip_internal                              1945    1916     -29
unpack_gz_stream                                     693     655     -38
open_zipped                                           89      47     -42
setup_unzip_on_fd                                    142      53     -89
------------------------------------------------------------------------------
(add/remove: 4/5 grow/shrink: 7/8 up/down: 533/-295)          Total: 238 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-12-07 00:44:00 +01:00
Denys Vlasenko
e7800f351a Rename transformer_aux_data_t -> transformer_state_t 
No code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-12-07 00:42:49 +01:00
Denys Vlasenko
640ce3de07 zcat: complain if input is not compressed 
function                                             old     new   delta
buffer_fill_and_print                                178     191     +13
varvalue                                             735     743      +8
bbunpack                                             747     755      +8
open_zipped                                           85      89      +4
xmalloc_open_zipped_read_close                        61      63      +2
get_addr_1                                           240     242      +2
fbsplash_main                                       1228    1230      +2
pstree_main                                          322     321      -1
builtin_type                                         121     119      -2
do_load                                              954     926     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/3 up/down: 39/-31)              Total: 8 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-02-02 02:06:38 +01:00
Denys Vlasenko
0545e3b69a tar: prevent empty file to be treated as valid tarball 
function                                             old     new   delta
tar_main                                             879     895     +16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-19 17:17:48 +01:00
Denys Vlasenko
f6beef63c6 archival/*: move "config:" snippets into .c files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-14 11:39:00 +01:00
Denys Vlasenko
36184a487d archival/*: move "applet:" snippets into .c files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-14 09:54:24 +01:00
Denys Vlasenko
66620fa626 archival/*: move "kbuild:" snippets into .c files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-14 09:53:52 +01:00
SASAKI Suguru
73fbe9dc86 tar: fix tar -T to add entries in the exact order as the input list 
This fixes tar to order files in tarball correctly in this case:

$ touch 1 2 3; echo -e '1\n2\n3' | tar -T- -c | tar t
1
2
3

Signed-off-by: SASAKI Suguru <suguru@sonik.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-08-15 12:19:29 +02:00
Rich Felker
16614e9bab *: change execl sentinels from NULL to (char*)0 
Signed-off-by: Rich Felker <dalias@aerifal.cx>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-06-30 13:45:17 +02:00
Denys Vlasenko
6967578728 whitespace fixes. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-14 01:34:48 +01:00
Boris Reisig
dfc2473b9e tar: support -J, --xz explicit compression option 
function                                             old     new   delta
tar_main                                             868     881     +13
tar_longopts                                         285     290      +5
packed_usage                                       29267   29270      +3

Signed-off-by: Boris Reisig <boris@boris.ca>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-05-24 09:01:55 +02:00
Natanael Copa
0446104137 tar: implement --no-recursion 
function                                             old     new   delta
tar_longopts                                         259     274     +15
.rodata                                             5757    5772     +15
tar_main                                            1038    1052     +14
writeTarFile                                         362     353      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 44/-9)              Total: 35 bytes
   text	   data	    bss	    dec	    hex	filename
  81457	   1706	   8344	  91507	  16573	busybox_old
  81477	   1706	   8344	  91527	  16587	busybox_unstripped

Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-05-18 16:34:30 +02:00
Denys Vlasenko
faac1d3e6e tar,rpm2cpio: check that child decompressor did not error out 
function                                             old     new   delta
check_errors_in_children                               -      57     +57
tar_main                                             833     848     +15
get_header_tar                                      1720    1733     +13
rpm2cpio_main                                        147     140      -7
handle_SIGCHLD                                        41       -     -41
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 2/1 up/down: 85/-48)             Total: 37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-03-06 16:33:42 +01:00
Denys Vlasenko
8a6a2f9c9c update seamless uncompression code 
This change makes "tar tf hello_world.txz" work without
adding special-casing for ".txz" extension. It also removes
ever-growing magic checking code in rpm2cpio and get_header_tar -
we reuse one which lives in setup_unzip_on_fd.

function                                             old     new   delta
unpack_gz_stream                                       7     566    +559
check_signature16                                      -      70     +70
setup_unzip_on_fd                                     99     142     +43
handle_SIGCHLD                                         -      41     +41
unpack_bz2_stream                                    342     376     +34
unzip_main                                          2352    2385     +33
bbunpack                                             503     533     +30
open_transformer                                      74     102     +28
unpack_Z_stream                                     1278    1304     +26
unpack_gunzip                                        101     123     +22
init_transformer_aux_data                              -      18     +18
unpack_xz_stream                                    2388    2402     +14
open_zipped                                          131     141     +10
rpm_main                                            1358    1363      +5
get_header_tar_lzma                                   52      57      +5
get_header_tar_bz2                                    52      57      +5
unpack_lzma_stream                                  2698    2702      +4
hash_find                                            234     233      -1
get_header_tar                                      1759    1733     -26
get_header_tar_gz                                     92      57     -35
unpack_uncompress                                     51      12     -39
rpm2cpio_main                                        201     147     -54
unpack_unxz                                           67      12     -55
unpack_bz2_stream_prime                               55       -     -55
get_header_tar_Z                                      86       -     -86
unpack_gz_stream_with_info                           539       -    -539
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 14/6 up/down: 947/-890)          Total: 57 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-03-06 16:27:48 +01:00
Denys Vlasenko
d184a728cf rename archive.h to bb_archive.h. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-22 12:45:14 +02:00
Denys Vlasenko
b47b3ce1bd randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-10 00:51:29 +02:00
Denys Vlasenko
66426760be *: remove "Options:" string from help texts 
function                                             old     new   delta
packed_usage                                       28706   28623     -83

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-06-05 03:58:28 +02:00
Denys Vlasenko
9180c6045e tar: store negative mtime as 0; pack very large files using base-256 encoding 
function                                             old     new   delta
writeTarHeader                                       841     979    +138

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-04 21:14:12 +02:00
Denys Vlasenko
681efe20d3 use user's shell instead of hardwired "/bin/sh" (android needs this) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-08 21:00:36 +01:00
Denys Vlasenko
b80acf58f1 tar: skip leading / and handle names like abc/..////def -> def (not ///def) 
function                                             old     new   delta
strip_unsafe_prefix                                    -     105    +105
writeFileToTarball                                   557     520     -37
get_header_tar                                      1545    1462     -83

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-02 01:21:02 +01:00
Denys Vlasenko
aef441cb4d tar: fix a bug where autodetection messes up -z on extract 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-06 20:01:11 +01:00
Denys Vlasenko
3237f5c307 tar: support -T - and -X - 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-03 04:00:23 +01:00
Denys Vlasenko
b5233f8556 tar: add -h and -T to help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-31 05:35:23 +01:00
Denys Vlasenko
a116552869 tar: add a note about -C and symlink-in-tarball attack 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-04 08:46:26 +01:00
Serj Kalichev
e4e911e712 modprobe: add support for --show-depends 
function                                             old     new   delta
modprobe_longopts                                      -      16     +16
packed_usage                                       28018   28028     +10
modprobe_main                                        648     653      +5
do_modprobe                                          580     536     -44
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 31/-44)            Total: -13 bytes

Signed-off-by: Serj Kalichev <serj.kalichev@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-12-26 01:56:19 +01:00
Denys Vlasenko
833d4e7f84 rename archival/libunarchive -> archival/libarchive; move bz/ into it 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-11-03 02:38:31 +01:00
Denys Vlasenko
8d3e225a2d libbb: add xfstat function 
function                                             old     new   delta
xfstat                                                 -      25     +25
mkfs_ext2_main                                      2421    2423      +2
mkfs_reiser_main                                    1197    1194      -3
next                                                 312     307      -5
ar_main                                              533     522     -11
mkfs_minix_main                                     2938    2924     -14
mkfs_vfat_main                                      1511    1495     -16
writeTarFile                                         272     255     -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/6 up/down: 27/-66)            Total: -39 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-08-31 12:42:06 +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
8f65b0cf31 whitespace fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-06 18:46:02 +02:00
Pascal Bellard
926031b764 *: introduce and use xfork() and xvfork() 
function                                             old     new   delta
launch_helper                                        170     169      -1
setup_heredoc                                        312     302     -10
handle_dir_common                                    367     354     -13
expand_vars_to_list                                 2456    2443     -13
open_transformer                                      89      74     -15
data_extract_to_command                              439     423     -16
do_ipaddr                                           1406    1389     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-85)             Total: -85 bytes

Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-04 15:32:38 +02:00
Denys Vlasenko
52827e3ebc *: tar-related cleanups: move struct to unarchive.h; move help to tar.c 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-26 18:21:36 +02:00
Ladislav Michl
2b46fd49b1 tar: optional support for --to-command 
function                                             old     new   delta
data_extract_to_command                                -     430    +430
dec2env                                                -      44     +44
tar_main                                             778     819     +41
str2env                                                -      37     +37
tar_var                                                -      32     +32
xputenv                                                -      22     +22
tar_longopts                                         257     270     +13
------------------------------------------------------------------------------
(add/remove: 6/0 grow/shrink: 2/0 up/down: 619/0)             Total: 619 bytes

Signed-off-by: Ladislav Michl <Ladislav.Michl@seznam.cz>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-25 01:33:00 +02:00
Denys Vlasenko
94ca6943bc *: small code shrinks and compile fix for unicode 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-20 02:51:09 +01:00
Mikhail Gusarov
0d478334b3 tar: handle -m (--touch) switch, enabled by FEATURE_TAR_NOPRESERVE_TIME 
function                                             old     new   delta
.rodata                                             2731    2779     +48
usage_messages                                       432     471     +39
tar_main                                             603     614     +11
tar_longopts                                         211     219      +8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 106/0)             Total: 106 bytes

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-20 02:47:37 +01:00
Denys Vlasenko
4b6abf6655 tar: fix recently added SEGV on "tar" w/o args 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-18 12:36:07 +01:00
Denys Vlasenko
8a936cfab7 tar: add support for --overwrite. +70 bytes. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-16 23:18:59 +01:00
Denys Vlasenko
425ad9c93b libunarchive: move dpkg-specific things into dpkg.c. 0 byte size differences 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-16 22:46:01 +01:00
Denys Vlasenko
a3aa3e3095 wget: check for close success; fix chunked; do not bother to send QUIT to ftp 
Also, random fixes to use %u for unsigned quantities. -14 bytes in wget.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-12-11 12:36:10 +01:00
Denys Vlasenko
d43d628f8b tar: revert part of last change. -39 bytes 
It looks like GNU "tar cf file file" _does_ save file as if
it is a hardlink, when it meets it for the second time.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-29 16:28:33 +01:00
Denys Vlasenko
f94c9bf288 tar: fix bug 673 (misdetection of repeated dir as hardlink). +92 bytes 
While at it, remove many superfluous ops on unpack:
mkdir("."), lots of umask() calls. Can remove more
by caching username->uid.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-29 07:45:33 +01:00
Denys Vlasenko
6331cf059c *: use "can't" instead of "cannot" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-13 09:08:27 +01:00
Bernhard Reutner-Fischer
30f3c1d5fd tar: add support for -o as synonym to --no-same-owner. +5 bytes 
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-25 02:13:32 +02:00
Denys Vlasenko
f645037ffb tar: handle "tar fx TARFILE" etc 
function                                             old     new   delta
tar_main                                             702     751     +49

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-25 01:32:45 +02:00
Denys Vlasenko
d57d62686d tar: fix --numeric-owner, --no-same-owner, --no-same-permissions bits 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-17 02:43:14 +02:00
Denis Vlasenko
f9d4fc3cf8 switch_root: improve behavior on error; improve help text 
*: make "can't execute '%s'" message uniform
 2009-04-21 20:40:51 +00:00
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
8b814b4a34 tar: support for tar --numeric-owner. By Natanael Copa. 
function                                             old     new   delta
tar_longopts                                         221     237     +16
data_extract_all                                     692     705     +13
tar_main                                             690     702     +12
 2009-04-21 00:52:21 +00:00
Denis Vlasenko
498436586e tar: stop changing net tarfile's mode, GNU tar doesn't do it 2009-01-20 02:52:57 +00:00
Denis Vlasenko
ab6b446e95 header_verbose_list: show off_t size, not cast to (unsigned) 
get_header_tar: support GNU tar's "base256" encoding

function                                             old     new   delta
get_header_tar                                      1536    1600     +64
header_verbose_list                                  242     257     +15
 2008-12-12 02:14:35 +00:00
Denis Vlasenko
73d702ee07 tar: fix typo in comment 2008-10-25 09:27:35 +00:00