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1522 Commits

Author SHA1 Message Date
Denys Vlasenko
8ad2acf352 fix "defined but not used" warnings 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2022-01-17 23:59:46 +01:00
Peter Korsgaard
cb91a818c8 libarchive/get_header_ar.c: fix extraction of archives from binutils in deterministic mode 
GNU binutils in deterministic mode (ar rD or built with
--enable-deterministic-archives) hard codes file mode to 0644 (NOT 0100644)
since https://github.com/bminor/binutils-gdb/commit/36e4dce69dd2

This confuses busybox ar x (data_extract_all):

touch a; ar rD a.ar a
ar: creating a.ar

busybox ar x a.ar
ar: unrecognized file type
hexdump -C a.ar
00000000  21 3c 61 72 63 68 3e 0a  61 2f 20 20 20 20 20 20  |!<arch>.a/      |
00000010  20 20 20 20 20 20 20 20  30 20 20 20 20 20 20 20  |        0       |
00000020  20 20 20 20 30 20 20 20  20 20 30 20 20 20 20 20  |    0     0     |
00000030  36 34 34 20 20 20 20 20  30 20 20 20 20 20 20 20  |644     0       |
00000040  20 20 60 0a                                       |  `.|

As a workaround, force the mode bits to S_IFREG, as nothing else makes sense
for ar.

function                                             old     new   delta
get_header_ar                                        539     542      +3

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-12-12 23:34:43 +01:00
Ariadne Conill
836b79211d cpio: add support for --renumber-inodes like GNU cpio 
The --renumber-inodes option renumbers the inodes starting from 1,
so that the sequence of inodes is always stable.  This helps with
reproducibility.

function                                             old     new   delta
cpio_o                                               961    1045     +84
.rodata                                            78422   78440     +18
bbconfig_config_bz2                                 6168    6164      -4
packed_usage                                       25764   25756      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 102/-12)            Total: 90 bytes

Signed-off-by: Ariadne Conill <ariadne@dereferenced.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-10-13 17:56:17 +02:00
Ariadne Conill
8aa5585ff4 cpio: add support for --ignore-devno like GNU cpio 
The --ignore-devno option is used to set device numbers to (0, 0).
This can be useful in verifying whether a CPIO archive is reproducible.

function                                             old     new   delta
cpio_o                                               922     961     +39
.rodata                                            78407   78422     +15
bbconfig_config_bz2                                 6161    6167      +6
packed_usage                                       25770   25764      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 60/-6)              Total: 54 bytes

Signed-off-by: Ariadne Conill <ariadne@dereferenced.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-10-13 17:53:15 +02:00
Denys Vlasenko
6ba1f2d0bc tar: prevent malicious archives with enormous long name sizes OOMing the machine 
function                                             old     new   delta
get_header_tar                                      1707    1752     +45

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-10-11 19:28:39 +02:00
Denys Vlasenko
d3dbf4ac05 *: add more beneficial NOINLINEs 
function                                             old     new   delta
dec_main                                               -    1729   +1729  -41 bytes
fallbackQSort3                                         -     671    +671  -70 bytes
verify_sun                                             -     481    +481 -107 bytes
verify                                              1330     742    -588
fallbackSort                                        1469     728    -741
unpack_xz_stream                                    2306     536   -1770
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 0/3 up/down: 2881/-3099)       Total: -218 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-10-10 14:32:05 +02:00
Denys Vlasenko
b198e9aa93 tar: improve comments, add FIXMEs. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-10-08 19:34:20 +02:00
Denys Vlasenko
59ac467dc6 libbb: eliminate a static data array in bb_mode_string() 
function                                             old     new   delta
print_stat                                           861     869      +8
header_verbose_list_ar                                73      77      +4
display_single                                       975     979      +4
header_verbose_list                                  237     239      +2
bb_mode_string                                       124     115      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 18/-9)               Total: 9 bytes
   text	   data	    bss	    dec	    hex	filename
1043136	    559	   5052	1048747	 1000ab	busybox_old
1043153	    559	   5020	1048732	 10009c	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-09-17 01:18:31 +02:00
Denys Vlasenko
6d3da732a5 bzip: make ftab[] and crc32table[] member arrays of EState, do not allocate 
function                                             old     new   delta
mainSort                                             941     986     +45
fallbackSort                                        1471    1469      -2
add_pair_to_block                                    194     188      -6
compressStream                                       543     515     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 45/-36)              Total: 9 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-08-29 15:32:42 +02:00
Ron Yorston
922b58b3e4 tar,smemcap: silence compiler warning 
gcc 11.2.1 complains that the tar header checksum might overflow
the checksum field.  It won't and using an unsigned int for the
calculation seems to convince the compiler too.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-08-22 15:44:57 +02:00
Denys Vlasenko
1e7ca18591 Regularize "NUL terminated input" --help texts 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-08-22 15:43:29 +02:00
Denys Vlasenko
62d5a1e56f tar,smemcap: commonalyze checksumming code for tar header 
function                                             old     new   delta
chksum_and_xwrite_tar_header                           -      99     +99
writeheader                                          280     199     -81
chksum_and_xwrite                                    102       -    -102
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 0/1 up/down: 99/-183)           Total: -84 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-08-20 17:58:49 +02:00
Harald van Dijk
8ae6a4344d tar: exclude files before updating hardlink info list 
When excluding one file, and including another file that is a hardlink
of the excluded file, it should be stored as an ordinary file.

function                                             old     new   delta
writeFileToTarball                                   489     493      +4

Signed-off-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-08-02 20:13:28 +02:00
Denys Vlasenko
3d40dfabe1 tar: simplify addition of --exclude=GLOB to the expansion of -X EXCLFILE 
function                                             old     new   delta
tar_main                                            1115    1105     -10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-08-02 19:58:13 +02:00
S Harris
e03b49477a cpio: fix sscanf on unterminated buffer 
Signed-off-by: S Harris <S.E.Harris@kent.ac.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-23 19:06:09 +02:00
Denys Vlasenko
04f052c56d unlzma: fix a case where we could read before beginning of buffer 
Testcase:

  21 01 01 00 00 00 00 00 e7 01 01 01 ef 00 df b6
  00 17 02 10 11 0f ff 00 16 00 00

Unfortunately, the bug is not reliably causing a segfault,
the behavior depends on what's in memory before the buffer.

function                                             old     new   delta
unpack_lzma_stream                                  2762    2768      +6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-15 15:14:00 +02:00
Denys Vlasenko
1f60d88cf6 *: more --help tweaks 
function                                             old     new   delta
packed_usage                                       33552   33541     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-15 10:00:18 +02:00
Denys Vlasenko
e2b9215868 *: --help tweaks 
function                                             old     new   delta
packed_usage                                       33589   33552     -37

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-14 20:47:20 +02:00
Denys Vlasenko
1849285a20 *: more --help tweaks, mostly expanding ts --help 
function                                             old     new   delta
packed_usage                                       33554   33596     +42

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-13 03:12:09 +02:00
Denys Vlasenko
6b6826f0b8 *: --help tweaks 
function                                             old     new   delta
.rodata                                           103190  103189      -1
packed_usage                                       33590   33566     -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-25)             Total: -25 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-13 01:08:48 +02:00
Denys Vlasenko
b1a2762ecf cpio: fix "cpio -d -p A/B/C" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-03 20:26:30 +02:00
Denys Vlasenko
147ac93a06 decompress_gunzip: simplify ERR_RET bit clearing 
My gcc is in fact clever enough to do it itself, but let's be explicit

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-05-03 14:58:32 +02:00
Denys Vlasenko
cca4c9f4c0 unzip: add -t 
function                                             old     new   delta
packed_usage                                       33584   33598     +14
.rodata                                           103218  103219      +1
unzip_main                                          2665    2656      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 15/-9)               Total: 6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-04-14 21:34:00 +02:00
Denys Vlasenko
afc766fc12 unzip: fix for .zip archives with >4GB file 
function                                             old     new   delta
unzip_main                                          2644    2665     +21
input_tab                                            926     927      +1
bb_banner                                             46      47      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 23/0)               Total: 23 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-04-14 21:15:25 +02:00
Samuel Sapalski
f25d254dfd decompress_gunzip: Fix DoS if gzip is corrupt 
On certain corrupt gzip files, huft_build will set the error bit on
the result pointer. If afterwards abort_unzip is called huft_free
might run into a segmentation fault or an invalid pointer to
free(p).

In order to mitigate this, we check in huft_free if the error bit
is set and clear it before the linked list is freed.

Signed-off-by: Samuel Sapalski <samuel.sapalski@nokia.com>
Signed-off-by: Peter Kaestle <peter.kaestle@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-03-12 10:45:10 +01:00
Denys Vlasenko
9daa877d6b tar: add TODO about a bug with non-writable directories on extract 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-01-01 13:34:25 +01:00
Denys Vlasenko
a2f18d950a help text tweaks 
function                                             old     new   delta
packed_usage                                       33570   33502     -68

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-18 04:12:51 +01:00
Denys Vlasenko
c7b858ff8d libbb: add and use infrastructure for fixed page size optimization 
function                                             old     new   delta
procps_scan                                         1121    1118      -3
getpagesize                                            6       -      -6
rpm_main                                            1037    1027     -10
rpm2cpio_main                                        120     110     -10
ptok                                                  38      21     -17
time_main                                           1282    1261     -21
mkswap_main                                          317     278     -39
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/6 up/down: 0/-106)           Total: -106 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-14 18:54:30 +01:00
Denys Vlasenko
fd3c512f88 libbb: create and use mmap() helpers 
function                                             old     new   delta
mmap_anon                                              -      22     +22
mmap_read                                              -      21     +21
xmmap_anon                                             -      16     +16
rpm_gettags                                          465     447     -18
bb_full_fd_action                                    498     480     -18
uevent_main                                          337     310     -27
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 0/3 up/down: 59/-63)             Total: -4 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-14 18:25:28 +01:00
Denys Vlasenko
11f1a2553e help text tweaks 
function                                             old     new   delta
packed_usage                                       33547   33545      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 19:04:19 +01:00
Denys Vlasenko
c9b93cf290 tar: expand --help 
function                                             old     new   delta
packed_usage                                       33486   33590    +104

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-08 16:46:41 +01:00
Denys Vlasenko
6cc4962b60 decrease padding: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nilly 
text	   data	    bss	    dec	    hex	filename
1021236	    559	   5052	1026847	  fab1f	busybox_old
1021120	    559	   5052	1026731	  faaab	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 14:58:02 +01:00
Denys Vlasenko
965b795b87 decrease paddign: gcc-9.3.1 slaps 32-byte alignment on arrays willy-nilly 
text	   data	    bss	    dec	    hex	filename
1021988	    559	   5052	1027599	  fae0f	busybox_old
1021236	    559	   5052	1026847	  fab1f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-30 13:03:03 +01:00
Joachim Nilsson
bd46f64dcb archival: avoid std namespace for local includes 
Avoid using same include file naming pattern as available in GLIBC.
Renamed to match grp_.h et al.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-11-16 13:24:24 +01:00
Denys Vlasenko
16e82c61d4 tar: fix fallout of last_char_is(NULL) no longer being allowed 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-10-02 18:30:53 +02:00
Denys Vlasenko
689d0650ab libbb: shrink recursive_action() by reducing memory pressure 
function                                             old     new   delta
recursive_action1                                      -     316    +316
file_action_grep                                     161     164      +3
add_to_prg_cache_if_socket                           202     205      +3
depmod_main                                          509     511      +2
writeFileToTarball                                   488     489      +1
parse_module                                         281     282      +1
fileAction                                           207     208      +1
act                                                  189     190      +1
add_to_dirlist                                        65      64      -1
writeTarFile                                         196     194      -2
uuidcache_init                                        47      45      -2
uuidcache_check_device                               109     107      -2
true_action                                            8       6      -2
run_parts_main                                       310     308      -2
netstat_main                                         534     532      -2
lsusb_main                                            29      27      -2
lspci_main                                            45      43      -2
initial_scan                                         138     136      -2
grep_main                                            845     843      -2
find_main                                            482     480      -2
config_file_action                                   437     435      -2
chmod_main                                           142     140      -2
dirAction                                             14      10      -4
diff_main                                           1544    1540      -4
chown_main                                           154     148      -6
skip_dir                                             136     129      -7
dir_act                                              191     184      -7
recursive_action                                     453      69    -384
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/20 up/down: 328/-439)        Total: -111 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-10-01 21:52:16 +02:00
Denys Vlasenko
4a0eb0370c gcc-9.x warning fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-10-01 03:07:22 +02:00
Norbert Lange
86a633ef9a dpkg: prevent important directories from being removed 
busybox will remove directory symlinks, which is at
odds with common layouts that have some of
bin/lib/lib32/lib64 symlinked.

this adds a exludelist for critcal and often symlinked
directories.

Fixes: Bug 12551

function                                             old     new   delta
remove_file_array                                    139     231     +92

Signed-off-by: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-06-29 14:06:40 +02:00
Denys Vlasenko
24c212b9ac gzip -d with zcat enabled but gunzip disabled was misbehaving 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-06-25 02:01:29 +02:00
Denys Vlasenko
7c443d110d randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-06-24 00:27:37 +02:00
Lauri Kasanen
b9943741c2 unzip: -d should create the dir 
The official Info-Zip unzip creates the dir if it doesn't exist.

Signed-off-by: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-04-29 14:37:21 +02:00
Denys Vlasenko
2f57b5139e unxz: show -t in --help 
function                                             old     new   delta
packed_usage                                       33236   33247     +11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-11-08 16:37:28 +01:00
Denys Vlasenko
caf5ee0dd9 gunzip: fix incorrect decoding of "fixed" inflate blocks 
function                                             old     new   delta
huft_build                                          1008    1022     +14
inflate_block                                       1253    1256      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 17/0)               Total: 17 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-26 20:04:34 +02:00
Denys Vlasenko
e1a7c97ac6 tar: fix fallout of: change -a from meaning "lzma" to mean "autodetect by extension" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-25 10:30:53 +02:00
Denys Vlasenko
fb1103595f gunzip: code shrink by using int-, not short-sized struct member 
function                                             old     new   delta
inflate_block                                       1254    1253      -1
inflate_codes                                        629     621      -8
huft_build                                          1054    1008     -46
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-55)             Total: -55 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-20 19:07:06 +02:00
Denys Vlasenko
6572ef6e1e gzip: code shrink 
huft_build() still has way too many params

function                                             old     new   delta
lit                                                    -      94     +94
dist                                                   -      94     +94
huft_build                                          1058    1054      -4
inflate_block                                       1281    1254     -27
cpdext                                                30       -     -30
cplext                                                31       -     -31
cpdist                                                60       -     -60
cplens                                                62       -     -62
------------------------------------------------------------------------------
(add/remove: 2/4 grow/shrink: 0/2 up/down: 188/-214)          Total: -26 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-19 18:53:19 +02:00
Denys Vlasenko
c763392458 gzip: code shrink 
huft_build() has way too many params

function                                             old     new   delta
inflate_block                                       1293    1281     -12
huft_build                                          1085    1058     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-39)             Total: -39 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-19 18:33:49 +02:00
Denys Vlasenko
42f454b13b dpkg-deb: work around bogus error message when working with XZ compressed packages 
function                                             old     new   delta
unpack_xz_stream                                    2309    2317      +8
bb_full_fd_action                                    464     472      +8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-10-11 14:11:44 +02:00
Denys Vlasenko
d327c6b190 gzip: code shrink 
Converted a few 16-bit variables and small arrays to 32-bit.

Stopped pulling desc->FOO members into temporary local variables
in gen_bitlen(): on register-starved arches, this is a loss,
temporaries go into stack slots.

Sprinkled a few "const" on pointer arguments.

function                                             old     new   delta
pack_gzip                                            742     745      +3
gen_codes                                            101      97      -4
build_tree                                           886     833     -53
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 3/-57)             Total: -54 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-09-06 17:59:45 +02:00
Denys Vlasenko
750137ef7c gzip: code shrink 
function                                             old     new   delta
gzip_main                                            267     264      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-09-05 13:26:58 +02:00