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Commit Graph

146 Commits

Author SHA1 Message Date
Denys Vlasenko
6b4f4b5284 unzip: optional support for xz 
function                                             old     new   delta
unzip_main                                          2476    2491     +15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 11:12:01 +01:00
Denys Vlasenko
2a0867a5ed unzip: optional support for bzip2 and lzma 
function                                             old     new   delta
unzip_main                                          2376    2476    +100
bbunpack                                             750     745      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 10:58:37 +01:00
Denys Vlasenko
548620c18b randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-12-08 12:24:48 +01:00
Denys Vlasenko
9655f95d0f tar: handle pax-encoded utf8 filenames and link names. Closes 9406 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-11 17:56:45 +01:00
Denys Vlasenko
85100a7067 cpio: fix restoration of file ownership, closes 9306 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-10-12 20:56:46 +02:00
Denys Vlasenko
10c0e91786 libarchive: fix xmalloc_open_zipped_read_close() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-06-21 02:04:16 +02:00
Denys Vlasenko
e24e88697a typo fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-06-20 16:28:53 +02:00
Denys Vlasenko
df3ec0e2f7 libarchive: fix open_zipped() 
Last commit broke it (on both MMU and NOMMU)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-06-20 11:42:00 +02:00
Denys Vlasenko
984b0a613a libarchive: fix xmalloc_open_zipped_read_close() on NOMMU 
The somewhat new "unpack in memory" code was broken
for xmalloc_open_zipped_read_close() on NOMMU: we seek back
over signature, but then expect it to be already consumed.
Stop seeking back in this case.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-06-20 11:06:42 +02:00
Denys Vlasenko
015db5800c randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-06-19 18:15:33 +02:00
Denys Vlasenko
3e134ebf6a *: slap on a few ALIGN1/2s where appropriate 
The result of looking at "grep -F -B2 '*fill*' busybox_unstripped.map"

   text	   data	    bss	    dec	    hex	filename
 829901	   4086	   1904	 835891	  cc133	busybox_before
 829665	   4086	   1904	 835655	  cc047	busybox

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-22 18:09:21 +02:00
Denys Vlasenko
c4199f22d0 libbb: two new functions: wait_for_exitstatus(pid), xfchdir(fd) 
Bartosz Golaszewski proposed xfchdir()

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-01 22:12:44 +02:00
Denys Vlasenko
6bd3fff51a [g]unzip: fix recent breakage. 
Also, do emit error message we so painstakingly pass from gzip internals

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-30 23:41:53 +01:00
Denys Vlasenko
1de25a6e87 unzip: test for bad archive SEGVing 
function                                             old     new   delta
huft_build                                          1296    1300      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-26 19:33:05 +01:00
Denys Vlasenko
537389cedd tar: fix files skipped with --strip_components not resetting selinux context 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-22 13:38:09 +02:00
Denys Vlasenko
f167e4503d tar: shrink hardlink name handling code 
function                                             old     new   delta
data_extract_all                                    1069    1040     -29

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-22 13:30:34 +02:00
Denys Vlasenko
6c563e370d tar: add support for --strip-components=N 
function                                             old     new   delta
data_extract_all                                     882     995    +113
tar_longopts                                         290     309     +19
tar_main                                             938     942      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 136/0)             Total: 136 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-22 01:07:13 +02:00
Aaro Koskinen
2735bc00e3 cpio: implement -R/--owner 
Implement -R/--owner to force ownership of files.

function                                             old     new   delta
cpio_main                                            532     586     +54
get_header_cpio                                      909     939     +30
print                                                 36      65     +29
cpio_o                                               804     832     +28
cpio_TRAILER                                           -      11     +11
packed_usage                                       30667   30662      -5
static.trailer                                        11       -     -11
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 4/1 up/down: 152/-16)           Total: 136 bytes

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-16 17:24:46 +02:00
Denys Vlasenko
7b85ec30b5 *: more BUILD_BUG_ON conversions 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-13 17:17:34 +02:00
Denys Vlasenko
7f3a2a2256 join some common strings, -400 bytes 
function                                             old     new   delta
print_intel_cstates                                  499     511     +12
file_insert                                          355     364      +9
dpkg_main                                           2944    2940      -4
ifenslave_main                                       645     640      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 21/-9)              Total: 12 bytes
   text	   data	    bss	    dec	    hex	filename
 937564	    932	  17676	 956172	  e970c	busybox_old
 937164	    932	  17676	 955772	  e957c	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-08 11:24:44 +02:00
Maninder Singh
97f2f7ca7f Removes stray empty line from code 
This patch removes stray empty line from busybox code
reported by script find_stray_empty_lines

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-07-13 03:25:46 +02:00
Denys Vlasenko
bdb540e04f tar: do not try to decode GNU extended headers as pax headers 
function                                             old     new   delta
get_header_tar                                      1736    1692     -44

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-05-11 16:55:16 +02:00
Thiago Jung Bauermann
b4059f6309 libarchive: auto-detect .Z files as well 
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-05-03 18:40:12 +02:00
Denys Vlasenko
8dff01d06a libbb: introduce and use is_prefixed_with() 
function                                             old     new   delta
is_prefixed_with                                       -      18     +18
complete_username                                     78      77      -1
man_main                                             737     735      -2
fsck_device                                          429     427      -2
unpack_ar_archive                                     80      76      -4
strip_unsafe_prefix                                  105     101      -4
singlemount                                         1054    1050      -4
rtc_adjtime_is_utc                                    90      86      -4
resolve_mount_spec                                    88      84      -4
parse_one_line                                      1029    1025      -4
parse_conf                                          1460    1456      -4
may_wakeup                                            83      79      -4
loadkmap_main                                        219     215      -4
get_irqs_from_stat                                   103      99      -4
get_header_cpio                                      913     909      -4
findfs_main                                           79      75      -4
fbsplash_main                                       1230    1226      -4
load_crontab                                         776     771      -5
expand_vars_to_list                                 1151    1146      -5
date_main                                            881     876      -5
skip_dev_pfx                                          30      24      -6
make_device                                         2199    2193      -6
complete_cmd_dir_file                                773     767      -6
run_applet_and_exit                                  715     708      -7
uudecode_main                                        321     313      -8
pwdx_main                                            197     189      -8
execute                                              568     560      -8
i2cdetect_main                                      1186    1176     -10
procps_scan                                         1242    1230     -12
procps_read_smaps                                   1017    1005     -12
process_module                                       746     734     -12
patch_main                                          1903    1891     -12
nfsmount                                            3572    3560     -12
stack_machine                                        126     112     -14
process_timer_stats                                  449     435     -14
match_fstype                                         111      97     -14
do_ipaddr                                           1344    1330     -14
open_list_and_close                                  359     343     -16
get_header_tar                                      1795    1779     -16
prepend_new_eth_table                                340     323     -17
fsck_main                                           1811    1794     -17
find_iface_state                                      56      38     -18
dnsd_main                                           1321    1303     -18
base_device                                          179     158     -21
find_keyword                                         104      82     -22
handle_incoming_and_exit                            2785    2762     -23
parse_and_put_prompt                                 774     746     -28
modinfo                                              347     317     -30
find_action                                          204     171     -33
update_passwd                                       1470    1436     -34
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/49 up/down: 18/-540)         Total: -522 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-03-12 17:48:34 +01:00
Denys Vlasenko
8c06bc6ba1 unzip: prevent attacks via malicious filenames 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-02-10 01:30:43 +01:00
Denys Vlasenko
08f9ffc3f7 dpkg: update supported compression methods 
Based on a patch by Ron Yorston <rmy@tigress.co.uk>

function                                             old     new   delta
get_header_tar_xz                                      -      60     +60
filter_accept_list_reassign                          128     188     +60
unpack_package                                       585     621     +36
init_archive_deb_control                              52      76     +24
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/0 up/down: 180/0)             Total: 180 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-01-30 15:15:38 +01:00
Denys Vlasenko
cfcd2399b2 make xmalloc_open_zipped_read_close result NUL terminated 
Compat with xmalloc_open_read_close

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-12-07 00:49:55 +01:00
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
a9dc7c2f59 lzop: add overflow check 
See CVE-2014-4607
http://www.openwall.com/lists/oss-security/2014/06/26/20

function                                             old     new   delta
lzo1x_decompress_safe                               1010    1031     +21

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-06-30 10:14:34 +02:00
Denys Vlasenko
81071e6872 unlzma: add comments about possible bug from BZ 2689 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-02-28 15:42:10 +01:00
Denys Vlasenko
2108a6f0b5 unlzma: move some variables in "more local" scope 
No code changes as verified by objdump

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-02-28 15:05:43 +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
b664f740d9 libbb: open_zipped() should not fail on non-compressed files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-01-27 13:02:18 +01:00
Denys Vlasenko
0f592d7fb9 tar: tighten up pax header validity check 
function                                             old     new   delta
get_header_tar                                      1785    1795     +10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-01-10 18:02:38 +01:00
Denys Vlasenko
7c47b560a8 libarchive: open_zipped() does not need to check extensions for e.g. gzip 
We only need to check for signature-less extensions,
currently only .lzma. The rest can be happily autodetected.

This fixes "zcat FILE_WITHOUT_GZ_EXT" case, among others.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-01-10 14:12:11 +01:00
Denys Vlasenko
9b2a9f0210 fix assorted unused code and wrong format specs found by cppchekc (bug 6716) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-29 16:43:33 +01:00
Denys Vlasenko
ebfa9b5aa1 tar: fix exitcode check for MMU-spawned unpacking helpers 
Testcase: tar xvzf EMPTY_FILE

function                                             old     new   delta
open_transformer                                     102     106      +4
get_header_tar                                      1781    1785      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-19 14:44:04 +01:00
Denys Vlasenko
5117eff6f9 Fix some compiler warnings emitted by gcc-4.8.0 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-10-16 14:21:20 +02:00
Denys Vlasenko
932e233a49 bunzip2: fix off-by-one check 
stage3-armv7a_hardfp-20130209.tar.bz2, 149189948 bytes long,
md5sum b29ce23312e14eb15a143377d4a38473, was failing to unpack.

It so happened that this file has a run which exactly fills
the 90k buffer. The check was "size >= bufsize", apparently
it has to be ">".

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-10-06 22:53:14 +02:00
Denys Vlasenko
a613aa1b4c ar: better comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-09-10 16:27:08 +02:00
Peter Korsgaard
2a053a2430 ar: read_num(): fix reading fields using the entire width 
ar fields are fixed length text strings (padded with spaces). Ensure
bb_strtou doesn't read past the field in case the full width is used.

The fields are only read once, so the simplest/smallest solution to me
seems to be to just pass the length to read_num() and then zero terminate
the string before passing it to bb_strtou. This does mean that the fields
MUST be read in reverse order, so some minor reshuffling was needed.

Bloat-o-meter:
function                                             old     new   delta
get_header_ar                                        394     414     +20
read_num                                              29      36      +7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 27/0)               Total: 27 bytes

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-09-10 16:22:12 +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
e0a6ab698f Fix build failures caused by not compiling open_transformer.c (#2) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-05-15 03:23:30 +02:00
Denys Vlasenko
abbc478f1c Fix build failures caused by not compiling open_transformer.c 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-05-12 02:34:38 +02:00
Denys Vlasenko
507f6ea6d2 decompress_unlzma: move function, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-01 14:48:10 +01:00
Denys Vlasenko
a2d04e0702 decompress_unlzma: 10% speedup in "small" code 
text	   data	    bss	    dec	    hex	filename
   1796	      0	      0	   1796	    704	decompress_unlzma.o
   1801	      0	      0	   1801	    709	decompress_unlzma.o

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-01 14:43:07 +01:00
Denys Vlasenko
c09fd27c0a decompress_unlzma: make "fast" version a bit smaller 
It is not slower. In fact it seems a tiny bit faster too.

   text	   data	    bss	    dec	    hex	filename
   2827	      0	      0	   2827	    b0b	decompress_unlzma.o
   2797	      0	      0	   2797	    aed	decompress_unlzma.o

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-01 14:37:58 +01:00
Denys Vlasenko
577235dee8 code shrink in check_errors_in_children() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-02-28 16:38:25 +01:00
Leonid Lisovskiy
f59d563399 xz: fix put_unaligned_{l,b}e32 
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-02-27 18:32:58 +01:00