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98 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
ac21687309 archival/*: move "applet:" snippets into .c files, part 2 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-14 11:38:18 +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
Denys Vlasenko
26cd90c7fd unzip: survive lack of CDF on non-streaming zip files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-21 02:31:08 +02:00
Denys Vlasenko
5e87e8aebb unzip: increase PEEK_FROM_END from 16k to 64k 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-20 15:20:46 +02:00
Denys Vlasenko
bf99807657 unzip: add missing fflush; code shrink 
function                                             old     new   delta
my_fgets80                                             -      41     +41
unzip_main                                          2291    2242     -49

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-22 11:16:08 +01:00
Denys Vlasenko
778794d1dd *: reuse more strings 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-22 10:13:52 +01:00
Denys Vlasenko
e3e0d2b812 tweak help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-06-19 12:46:59 +02:00
Denys Vlasenko
c5b01016e6 unzip: make options parsing more robust on getopt w/o gnu extensions 
Also, code shrank:

function                                             old     new   delta
static.extn                                           15      10      -5
packed_usage                                       29231   29217     -14
unzip_main                                          2388    2291     -97
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-116)           Total: -116 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-06-15 16:43:26 +02:00
Natanael Copa
02112d8ae3 unzip: ignore chmod errors 
This makes unzip to FAT filesystems not exit with error.
This is similar to how the "normal" unzip works.

Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-05-28 01:29:15 +02:00
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
831756bac4 unzip: fflush stdout before reading interative y/n answer from stdin 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-09 17:30:55 +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
Pere Orga
1f4447b2d4 move help text from include/usage.src.h to archival/*.c 
Signed-off-by: Pere Orga <gotrunks@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-27 22:40:30 +02:00
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
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
f3ea792bad *: mass cosmetic removal of extra empty lines. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-26 01:06:14 +02:00
Dan Fandrich
b76f18d331 Improve unzip's handling of stream ZIP files 
Search harder for the ZIP magic numbers at the end of a file by checking
16 KiB from the end instead of just 1 KiB.  ZIP files with long comments
(such as certain cryptographically signed files) or those sitting in a
wrapper could have more than 1 KiB of data after the magic numbers, so
they couldn't be read.

Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-18 13:32:39 +02:00
Denys Vlasenko
fc2bb8f04f unzip: another small code shrink 
function                                             old     new   delta
find_cdf_offset                                      173     160     -13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-24 13:07:55 +02:00
Denys Vlasenko
e98884b9be unzip: tiny code shrink -2 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-24 04:46:18 +02:00
Denys Vlasenko
4e8ff73e20 unzip: restore unix file mode if possible. closes bug 1045 
function                                             old     new   delta
unzip_main                                          2197    2188      -9
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 173/-182)           Total: -9 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-24 04:33:02 +02:00
Denys Vlasenko
386bc9fda3 unzip: more compat if DESKTOP=y 
function                                             old     new   delta
DESKTOP off:
unzip_main                                          1648    1629     -19
DESKTOP=y:
unzip_main                                          1939    2197    +258

Without this, midnight commander can't display .zip files

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-06 16:52:50 +02:00
Stefani Seibold
f3b56b428f unzip: try lseek before resorting to reading 
function                                             old     new   delta
unzip_skip                                            16      43     +27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-25 02:02:22 +02:00
Denis Vlasenko
9aa5c652e9 unzip: fix thinko with le/be conv and size (closes bug 129) 
awk: make "struct global" hack more robust wrt alignment (closes bug 131)
 2009-02-26 11:21:04 +00:00
Denis Vlasenko
006e8628fc unzip: handle "central directory" 
needed for OpenOffice, gmail attachment .zips etc
 conditional on CONFIG_DESKTOP

function                                             old     new   delta
unzip_main                                          1643    1939    +296
find_cds_offset                                        -     173    +173
unzip_skip                                            11      16      +5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 474/0)             Total: 474 bytes
 2008-09-21 01:01:46 +00:00
Denis Vlasenko
48a9971bd4 unzip: move check for unsupported zip features to better place 2008-07-26 17:32:41 +00:00
Denis Vlasenko
c2dcb7cf63 unzip: give better error message when presented with unsupported 
zip file. Add zip documentation and an example of file we cant
 (yet) unpack.
 2008-07-26 16:50:24 +00:00
Denis Vlasenko
a60f84ebf0 *: rename ATTRIBUTE_XXX to just XXX. 2008-07-05 09:18:54 +00:00
Denis Vlasenko
f5d8c90d73 style fixes, no code changes 2008-06-26 14:32:57 +00:00
Denis Vlasenko
f7be20e70c nameif: extended matching (Nico Erfurth <masta@perlgolf.de>) 
*: whitespace fixes

function                                             old     new   delta
prepend_new_eth_table                                  -     304    +304
nameif_main                                          620     684     +64
cc_macaddr                                            51       -     -51
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/0 up/down: 368/-51)           Total: 317 bytes
 2007-12-24 14:09:19 +00:00
Denis Vlasenko
cd0fbb5e77 unzip: hmm... gcc doesn't like ATTRIBUTE_PACKED?? Document that... 2007-11-06 02:16:01 +00:00
Denis Vlasenko
018b155ad9 telnetd: fix problem with zombies (by Paul Fox <pgf@brightstareng.com>) 
syslogd: strip trailing NULs
 2007-11-06 01:38:46 +00:00
Paul Fox
cb981638f5 change safety check on zip header to allow for extra length, and 
revert the header read to use the correct constant rather than
sizeof.  at least one version of gcc (armv4-linux-gcc-3.4.1) pads
the struct to 28 bytes in spite of the packing.
 2007-11-05 23:09:03 +00:00