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590402bb55
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1320 Commits

Author SHA1 Message Date
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
8c1d857d25 unzip: match "Defl:?" display with info-zip; cosmetic code shuffling 
Large nested indented code blocks made more sane with a few gotos.

function                                             old     new   delta
unzip_main                                          2491    2519     +28

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 13:10:10 +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
Kang-Che Sung
b130f9f758 Allow 'gzip -d' and 'bzip2 -d' without gunzip or bunzip2 
Idea copied from the "ip" applet.

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-09 09:03:31 +01:00
Kang-Che Sung
d5e7ff0292 bunzip2: fix code bloat caused by zcat's seamless magic 
This example single-applet configuration would trigger the bloat:

    CONFIG_FEATURE_SEAMLESS_XZ=y
    CONFIG_FEATURE_SEAMLESS_LZMA=y
    CONFIG_FEATURE_SEAMLESS_BZ2=y
    CONFIG_FEATURE_SEAMLESS_GZ=y
    CONFIG_BUNZIP2=y
    # CONFIG_ZCAT is not set
    # All other applets disabled

Here, the resulting "busybox-bunzip2" binary would contain
unpack_gz_stream, unpack_lzma_stream and unpack_xz_stream functions
code. In other words, the gzip, lzma and xz decompressors' code are
linked into the binary unnecessarily.

This happens because SEAMLESS_MAGIC != 0 and compiler is unable
to figure out that SEAMLESS_MAGIC bit is never set.

Fix this by disabling SEAMLESS_MAGIC option flag (setting its value
to 0) when zcat is disabled. This will help the compiler optimize out
bbunpack() and no longer generate open_zipped() function call.

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-08 14:31:06 +01:00
Denys Vlasenko
0ffac1cc22 unzip: do not use CDF.extra_len, read local file header. Closes 9536 
While at it, shorten many field and variable names.

function                                             old     new   delta
unzip_main                                          2334    2376     +42

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-08 14:14:19 +01:00
Cristian Ionescu-Idbohrn
e6add210b2 unzip: remove now-pointless lseek which returns current position 
archival/unzip.c: In function 'read_next_cdf':
archival/unzip.c:271:8: warning: variable 'org' set but
                                 not used [-Wunused-but-set-variable]
  off_t org;
        ^~~

Signed-off-by: Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-05 19:07:54 +01:00
Denys Vlasenko
ecba2944d5 typo fix in config help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-05 11:47:28 +01:00
Denys Vlasenko
e3c4db8b39 unzip: properly use CDF to find compressed files. Closes 9536 
function                                             old     new   delta
unzip_main                                          2437    2350     -87

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-05 11:43:53 +01:00
Denys Vlasenko
ce3a98a222 Make DPKG=y and DPKG_DEB=y by default 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-12-23 13:52:53 +01:00
Denys Vlasenko
9cc3d3ab21 fix breakage found by mass one-applet builds 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-12-23 02:42:26 +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
351ab8278e dpkg-deb: shorten code, improve help text 
function                                             old     new   delta
packed_usage                                       30261   30236     -25
dpkg_deb_main                                        437     401     -36
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-61)             Total: -61 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-27 04:48:53 +01:00
Denys Vlasenko
6747bdac88 dpkg-deb: remove unused FEATURE_DPKG_DEB_EXTRACT_ONLY config option 
Its usage in C code was removed in 2004.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-27 03:57:08 +01:00
Denys Vlasenko
eb3fdc843e Make bzcat, lzcat, xzcat, zcat, lzopcat, unlzop individually selectable 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-11-16 15:45:05 +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
Natanael Copa
71cfbce655 gzip: fix compression level bug. Closes 9131 
fix broken logic to get the gzip_level_config value from options -1 to
-9.

This fixes an off-by-one bug that caused gzip -9 output bigger files
than the other compression levels.

It fixes so that compression level 1 to 3 are actually mapped to level 4
as comments say.

It also fixes that levels -4 to -9 is mapped to correct level and avoids
out-of-bounds access.

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-08-15 01:26:28 +02:00
Denys Vlasenko
d2f4241d2e cpio: tweak help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-07-08 12:52:24 +02:00
Denys Vlasenko
237bedd499 getopt32: add new syntax of 'o:+' and 'o:*' for -o NUM and -o LIST 
In many cases, this aqllows to drop use of opt_complementary.
Approximately -400 bytes:

function                                             old     new   delta
getopt32                                            1423    1502     +79
opt_string                                            17      18      +1
OPT_STR                                               24      25      +1
uniq_main                                            416     406     -10
timeout_main                                         279     269     -10
sulogin_main                                         270     260     -10
readprofile_main                                    1825    1815     -10
ps_main                                              543     533     -10
pidof_main                                           245     235     -10
pgrep_main                                           611     601     -10
od_main                                             2600    2590     -10
mkfs_minix_main                                     2684    2674     -10
mkfs_ext2_main                                      2603    2593     -10
microcom_main                                        712     702     -10
makemime_main                                        315     305     -10
ionice_main                                          282     272     -10
inetd_main                                          2074    2064     -10
ifplugd_main                                        1144    1134     -10
halt_main                                            353     343     -10
getopt_main                                          636     626     -10
fdisk_main                                          2854    2844     -10
env_main                                             206     196     -10
dmesg_main                                           319     309     -10
conspy_main                                         1214    1204     -10
awk_main                                             981     971     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/22 up/down: 81/-220)         Total: -139 bytes
   text	   data	    bss	    dec	    hex	filename
 919373	    906	  14060	 934339	  e41c3	busybox_old
 918969	    906	  14060	 933935	  e402f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-07-06 21:58:02 +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
0ad872baf3 randomconfig fixes 4 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-06-20 01:40:19 +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
9de2e5a222 *: hopefully all setup_common_bufsiz() are in place 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-21 18:38:51 +02:00
Denys Vlasenko
47cfbf32fd *: add most of the required setup_common_bufsiz() calls 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-21 18:18:48 +02:00
Denys Vlasenko
e6a2f4cc5a libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it 
The config item is FEATURE_USE_BSS_TAIL. When it is off (default):

function                                             old     new   delta
read_config                                          210     228     +18
doCommands                                          2279    2294     +15
ipneigh_list_or_flush                                763     772      +9
ipaddr_list_or_flush                                1256    1261      +5
display_process_list                                1301    1306      +5
conspy_main                                         1378    1383      +5
do_lzo_compress                                      352     355      +3
do_lzo_decompress                                    565     567      +2
push                                                  46      44      -2
inetd_main                                          2136    2134      -2
uevent_main                                          421     418      -3
addLines                                              97      92      -5
bb_common_bufsiz1                                   8193    1024   -7169
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181)        Total: -7119 bytes
   text	   data	    bss	    dec	    hex	filename
 829850	   4086	   9080	 843016	  cdd08	busybox_old
 829901	   4086	   1904	 835891	  cc133	busybox_unstripped

FEATURE_USE_BSS_TAIL=y:

read_config                                          210     228     +18
doCommands                                          2279    2294     +15
ipneigh_list_or_flush                                763     772      +9
ipaddr_list_or_flush                                1256    1261      +5
display_process_list                                1301    1306      +5
conspy_main                                         1378    1383      +5
do_lzo_compress                                      352     355      +3
do_lzo_decompress                                    565     567      +2
inetd_main                                          2136    2134      -2
bb_common_bufsiz1                                   8193       -   -8193
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195)        Total: -8133 bytes
   text	   data	    bss	    dec	    hex	filename
 829850	   4086	   9080	 843016	  cdd08	busybox_old
 829911	   4086	    880	 834877	  cbd3d	busybox_unstripped

FIXME: setup_common_bufsiz() calls are missing.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-21 17:39:11 +02:00
Denys Vlasenko
5598bdf0d3 unzip: shorter code for date/time generation 
function                                             old     new   delta
unzip_main                                          2426    2414     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-18 02:38:32 +02:00
Denys Vlasenko
07bd979921 unzip: better match for "standard" unzip's output; string shrinkage 
function                                             old     new   delta
unzip_main                                          2490    2426     -64
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-64)             Total: -64 bytes
   text    data     bss     dec     hex filename
 924008     906   17160  942074   e5ffa busybox_old
 923846     906   17160  941912   e5f58 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-18 01:43:24 +02:00
Denys Vlasenko
bca4deee83 unzip: fix percent overflow; show "stored" files properly 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-18 01:14:05 +02:00
Denys Vlasenko
0ccf52a9fb unzip: fix a case where we find wrong CDE. Closes 8821 
function                                             old     new   delta
unzip_main                                          2472    2490     +18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2016-04-17 21:05:34 +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
4840325351 lzop: eliminate variable, use "int" as return type 
Based on patch by Maxin B. John <maxin.john@intel.com>

function                                             old     new   delta
pack_lzop                                            870     859     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-28 15:33:19 +01:00
Aaro Koskinen
cddc98eab7 gzip: add support for --no-name long option 
Add support for --no-name long option. Just silently ignore it
like the short -n option.

This allows to use busybox gzip with Lynx browser.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-27 21:30:43 +01:00
Aaro Koskinen
fbe50cf6bc gunzip: add support for long options 
Add support for long options.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-27 21:28:50 +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
db700330d8 tweak defconfig 
MONOTONIC_SYSCALL=y by default

FEATURE_LAST_SMALL is gone: now FEATURE_LAST_FANCY is a "bool", not a "choice".

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-25 20:36:03 +01:00
Denys Vlasenko
0269789537 inetd: make FEATURE_INETD_RPC off by default 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-25 20:10:46 +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
62ae323df0 tar: implement --version for buildroot 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-10-22 13:22:26 +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