Denys Vlasenko
b920a38dc0
tar: postpone creation of symlinks with "suspicious" targets. Closes 8411
...
function old new delta
data_extract_all 968 1038 +70
tar_main 952 986 +34
scan_tree 258 262 +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 108/0) Total: 108 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-24 17:20:13 +02:00
Denys Vlasenko
2c1258c620
Move get_unaligned_le32() macros to platform.h
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-15 20:22:25 +02:00
Denys Vlasenko
10ad622dc2
Spelling fixes in comments, documentation, tests and examples
...
By klemens <ka7@github.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-17 16:13:32 +02:00
Kang-Che Sung
74c2215086
Fix FEATURE_{GZIP,BZIP2}_DECOMPRESS link error
...
... when gzip is selected but not gunzip nor zcat, or when bzip2 is
selected but not bunzip2 nor bzcat.
This regression is introduced in b130f9f758
2017-02-17 20:15:27 +01:00
Rostislav Skudnov
8762512fdb
Replace int -> uint to avoid signed integer overflow
...
An example of such an error (should be compiled with DEBUG_SANITIZE):
runtime error: left shift of 1 by 31 places cannot be represented in
type 'int'
Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-04 23:10:22 +01:00
Denys Vlasenko
06f20bf675
link: new applet
...
coreutils grew itself a tiny simplistic alternative to ln:
Usage: link FILE LINK
Create hard LINK to FILE
function old new delta
link_main - 75 +75
packed_usage 31114 31131 +17
applet_names 2564 2569 +5
applet_main 1480 1484 +4
applet_install_loc 185 186 +1
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/0 up/down: 102/0) Total: 102 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-26 00:27:53 +01:00
Denys Vlasenko
590402bb55
unlzma: expand comments, no code changes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-09 14:28:25 +01:00
Denys Vlasenko
3989e5adf4
unlzma: fix erroneous "while" instead of "if". Closes 4682
...
These parts of the code essentially check whether
stepping back by rep0 goes negative or not.
LZMA SDK from lzma1604.7z has the following in the corresponding places:
... = dic[dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0)]
Clearly, not loop here.
Technically, "while" here works: if condition is false (because pos
underflowed), it iterates once, adds header.dict_size (a.k.a. dicBufSize),
this makes pos positive but smaller than header.dict_size, and loop exits.
Now we'll just check for negative result of subtraction, which is less code:
function old new delta
unpack_lzma_stream 2659 2641 -18
(I hope 2 Gbyte+ dictionaries won't be in use soon).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-09 14:02:55 +01:00
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
