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1482 Commits

Author SHA1 Message Date
Denys Vlasenko
05251986c7 gzip: code shrink 
Use one memset to clear part of G1, and all of G2.

function                                             old     new   delta
pack_gzip                                            838     828     -10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-31 16:11:56 +01:00
Denys Vlasenko
8fd35a1fa6 gzip: code shrink 
function                                             old     new   delta
pack_gzip                                            861     838     -23

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-31 15:42:45 +01:00
Denys Vlasenko
468731a86b gzip: code shrink and speedup 
function                                             old     new   delta
pack_gzip                                            908     861     -47

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-31 15:32:32 +01:00
Denys Vlasenko
631c16855a gzip: optionally faster put_32bit() 
function                                             old     new   delta
put_32bit                                             22      55     +33

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-31 00:42:29 +01:00
Denys Vlasenko
b7dfbbcdaa gzip: speed up send_bits() 
Replace one RMW op with store. This speeds up gzip of a png file by ~2%.

function                                             old     new   delta
send_bits                                             62      66      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-31 00:01:06 +01:00
Denys Vlasenko
d7500f856d gzip: use "unsigned" type for bit fields and bit counts 
This does not change any logic, those values should always be positive.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-30 23:53:38 +01:00
Denys Vlasenko
6ba6a6f28e gzip: use wider (32-bit, not 16) bi_buf 
function                                             old     new   delta
bi_windup                                             76      74      -2
send_bits                                             70      62      -8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-30 23:47:45 +01:00
Denys Vlasenko
e4c4e6ddc3 gzip: code shrink 
function                                             old     new   delta
send_bits                                             92      70     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-30 22:37:06 +01:00
Denys Vlasenko
9c499a5af4 gzip: code shrink 
function                                             old     new   delta
fill_window_if_needed                                  -     238    +238
deflate                                              924     907     -17
pack_gzip                                            809     790     -19
fill_window                                          216       -    -216
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/2 up/down: 238/-252)          Total: -14 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-30 18:15:39 +01:00
Denys Vlasenko
c6d2a26fac gzip: code shrink (consolidate zeroing on reinit) 
function                                             old     new   delta
deflate                                                -     938    +938
pack_gzip                                           1903     923    -980

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-30 17:39:57 +01:00
Denys Vlasenko
bb373dbc32 tar: accomodate non-terminated tar.chksum fields as seen from github.com 
function                                             old     new   delta
get_header_tar                                      1783    1696     -87

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-27 19:04:08 +01:00
Denys Vlasenko
e503962981 gzip: fix debug code. Closes 10681 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-01-26 00:21:25 +01:00
Denys Vlasenko
a07fead823 tar: code shrink 
function                                             old     new   delta
packed_usage                                       31863   31853     -10
tar_main                                            1013    1002     -11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-21)             Total: -21 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-11-13 01:56:51 +01:00
Denys Vlasenko
931cf64ae7 tar: code shrink, better help text 
function                                             old     new   delta
tar_main                                             994    1013     +19
packed_usage                                       31893   31863     -30
writeTarFile                                         250     207     -43
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 19/-73)            Total: -54 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-11-13 01:40:28 +01:00
Denys Vlasenko
02e93b3a28 tar: improve help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-11-10 22:14:22 +01:00
Eugene Rudoy
978810d7ac unzip: add missing -j to trivial usage 
Signed-off-by: Eugene Rudoy <gene.devel@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-11-09 12:47:56 +01:00
Eugene Rudoy
c6f213ade4 unzip: fix content listing and filtering when -j is used 
Original Info-ZIP's unzip uses unstripped filenames
while doing content listing and filtering, i.e.
 - in content listing mode -j is ignored completely
 - filtering is applied to non-stripped names, -j
   takes effect first while extracting the files

997ad2c64a strips path
components a little bit too early resulting in behavior
deviations.

Fix it by doing stripping after listing/filtering.

p.s. Info-ZIP's unzip behavior is the same as
     that of tar in --strip-components=NUM mode

Signed-off-by: Eugene Rudoy <gene.devel@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-11-09 12:45:50 +01:00
Denys Vlasenko
9ac42c5005 unlzma: fix SEGV, closes 10436 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-10-27 15:37:03 +02:00
Denys Vlasenko
0402cb32df bunzip2: fix runCnt overflow from bug 10431 
This particular corrupted file can be dealth with by using "unsigned".
If there will be cases where it genuinely overflows, there is a disabled
code to deal with that too.

function                                             old     new   delta
get_next_block                                      1678    1667     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-10-22 18:23:23 +02:00
Denys Vlasenko
2ab9403119 whitespace and comment format fixes, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-10-05 15:33:28 +02:00
Denys Vlasenko
ebe6d9d875 whitespace and comment format fixes, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-10-05 14:40:24 +02:00
Denys Vlasenko
0c4dbd481a regularize format of source file headers, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-09-18 16:28:43 +02:00
Ron Yorston
6bafcfb67a tar: fix handling of first argument without '-' 
The following no longer works as expected:

   $ ./busybox tar xfz test.tgz
   tar: can't open 'z': No such file or directory

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-23 12:19:44 +02:00
Ron Yorston
e837a0dbbe libarchive: fix build failure on NOMMU systems 
In the old code fd was an argument, now we need to get the file descriptor
from the xstate structure.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-22 15:41:33 +02:00
Denys Vlasenko
efcc89b21b rpm,rpm2cpio: do not compile not-configurred parts of rpm.c 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-22 15:33:04 +02:00
Denys Vlasenko
5da5365d3c rpm,rpm2cpio: INIT_G() was missing (it is a nop here so far) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-10 13:22:01 +02:00
Denys Vlasenko
bc9bbeb2b8 libarchive: do not extract unsafe symlinks unless $EXTRACT_UNSAFE_SYMLINKS=1 
function                                             old     new   delta
unsafe_symlink_target                                  -     147    +147
unzip_main                                          2711    2732     +21
copy_file                                           1657    1678     +21
tar_main                                             999     971     -28
data_extract_all                                    1038     984     -54
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 2/2 up/down: 189/-82)           Total: 107 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-10 11:52:42 +02:00
Denys Vlasenko
0cf64c8b5d rpm2cpio: handle LZMA compressed rpms. closes 10166 
function                                             old     new   delta
rpm2cpio_main                                         78     120     +42
setup_lzma_on_fd                                       -      29     +29
fork_transformer_and_free                              -      28     +28
...
setup_unzip_on_fd                                     56      32     -24
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/5 up/down: 104/-67)            Total: 37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-10 10:36:37 +02:00
Denys Vlasenko
3c9b8fe252 rpm2cpio: use rpm_gettags 
function                                             old     new   delta
rpm_gettags                                            -     451    +451
rpm2cpio_main                                        140      78     -62
skip_header                                           92       -     -92
rpm_main                                            1477    1049    -428
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/2 up/down: 451/-582)         Total: -131 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-10 09:56:49 +02:00
Denys Vlasenko
e5650a40d4 rpm: prepare rpm_gettags for reuse in rpm2cpio 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-10 09:41:57 +02:00
Denys Vlasenko
3fa9262dcd rpm,rpm2cpio: put both sources into one file, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-10 09:32:19 +02:00
Denys Vlasenko
9be166b5dd rpm: code shrink 
function                                             old     new   delta
rpm_getstr0                                            -       7      +7
rpm_getstr                                           112     110      -2
rpm_getint                                           120     118      -2
bsearch_rpmtag                                        15      13      -2
shell_builtin_read                                  1334    1320     -14
rpm_main                                            1548    1474     -74
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/5 up/down: 7/-94)             Total: -87 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-09 18:20:01 +02:00
Denys Vlasenko
22542eca18 getopt32: remove opt_complementary 
function                                             old     new   delta
vgetopt32                                           1318    1392     +74
runsvdir_main                                        703     713     +10
bb_make_directory                                    423     425      +2
collect_cpu                                          546     545      -1
opt_chars                                              3       -      -3
opt_complementary                                      4       -      -4
tftpd_main                                           567     562      -5
ntp_init                                             476     471      -5
zcip_main                                           1266    1256     -10
xxd_main                                             428     418     -10
whois_main                                           140     130     -10
who_main                                             463     453     -10
which_main                                           212     202     -10
wget_main                                           2535    2525     -10
watchdog_main                                        291     281     -10
watch_main                                           222     212     -10
vlock_main                                           399     389     -10
uuencode_main                                        332     322     -10
uudecode_main                                        316     306     -10
unlink_main                                           45      35     -10
udhcpd_main                                         1482    1472     -10
udhcpc_main                                         2762    2752     -10
tune2fs_main                                         290     280     -10
tunctl_main                                          366     356     -10
truncate_main                                        218     208     -10
tr_main                                              518     508     -10
time_main                                           1134    1124     -10
tftp_main                                            286     276     -10
telnetd_main                                        1873    1863     -10
tcpudpsvd_main                                      1785    1775     -10
taskset_main                                         521     511     -10
tar_main                                            1009     999     -10
tail_main                                           1644    1634     -10
syslogd_main                                        1967    1957     -10
switch_root_main                                     368     358     -10
svlogd_main                                         1454    1444     -10
sv                                                  1296    1286     -10
stat_main                                            104      94     -10
start_stop_daemon_main                              1028    1018     -10
split_main                                           542     532     -10
sort_main                                            796     786     -10
slattach_main                                        624     614     -10
shuf_main                                            504     494     -10
setsid_main                                           96      86     -10
setserial_main                                      1132    1122     -10
setfont_main                                         388     378     -10
setconsole_main                                       78      68     -10
sendmail_main                                       1209    1199     -10
sed_main                                             677     667     -10
script_main                                         1077    1067     -10
run_parts_main                                       325     315     -10
rtcwake_main                                         454     444     -10
rm_main                                              175     165     -10
reformime_main                                       119     109     -10
readlink_main                                        123     113     -10
rdate_main                                           246     236     -10
pwdx_main                                            189     179     -10
pstree_main                                          317     307     -10
pscan_main                                           663     653     -10
popmaildir_main                                      818     808     -10
pmap_main                                             80      70     -10
nc_main                                             1042    1032     -10
mv_main                                              558     548     -10
mountpoint_main                                      477     467     -10
mount_main                                          1264    1254     -10
modprobe_main                                        768     758     -10
modinfo_main                                         333     323     -10
mktemp_main                                          200     190     -10
mkswap_main                                          324     314     -10
mkfs_vfat_main                                      1489    1479     -10
microcom_main                                        715     705     -10
md5_sha1_sum_main                                    521     511     -10
man_main                                             867     857     -10
makedevs_main                                       1052    1042     -10
ls_main                                              563     553     -10
losetup_main                                         432     422     -10
loadfont_main                                         89      79     -10
ln_main                                              524     514     -10
link_main                                             75      65     -10
ipcalc_main                                          544     534     -10
iostat_main                                         2397    2387     -10
install_main                                         768     758     -10
id_main                                              480     470     -10
i2cset_main                                         1239    1229     -10
i2cget_main                                          380     370     -10
i2cdump_main                                        1482    1472     -10
i2cdetect_main                                       682     672     -10
hwclock_main                                         406     396     -10
httpd_main                                           741     731     -10
grep_main                                            837     827     -10
getty_main                                          1559    1549     -10
fuser_main                                           297     287     -10
ftpgetput_main                                       345     335     -10
ftpd_main                                           2232    2222     -10
fstrim_main                                          251     241     -10
fsfreeze_main                                         77      67     -10
fsck_minix_main                                     2921    2911     -10
flock_main                                           314     304     -10
flashcp_main                                         740     730     -10
flash_eraseall_main                                  833     823     -10
fdformat_main                                        532     522     -10
expand_main                                          680     670     -10
eject_main                                           335     325     -10
dumpleases_main                                      630     620     -10
du_main                                              314     304     -10
dos2unix_main                                        441     431     -10
diff_main                                           1350    1340     -10
df_main                                             1064    1054     -10
date_main                                           1095    1085     -10
cut_main                                             961     951     -10
cryptpw_main                                         228     218     -10
crontab_main                                         575     565     -10
crond_main                                          1149    1139     -10
cp_main                                              370     360     -10
common_traceroute_main                              3834    3824     -10
common_ping_main                                    1767    1757     -10
comm_main                                            239     229     -10
cmp_main                                             655     645     -10
chrt_main                                            379     369     -10
chpst_main                                           704     694     -10
chpasswd_main                                        308     298     -10
chown_main                                           171     161     -10
chmod_main                                           158     148     -10
cat_main                                             428     418     -10
bzip2_main                                           120     110     -10
blkdiscard_main                                      264     254     -10
base64_main                                          221     211     -10
arping_main                                         1665    1655     -10
ar_main                                              556     546     -10
adjtimex_main                                        406     396     -10
adduser_main                                         882     872     -10
addgroup_main                                        411     401     -10
acpid_main                                          1198    1188     -10
optstring                                             11       -     -11
opt_string                                            18       -     -18
OPT_STR                                               25       -     -25
ubi_tools_main                                      1288    1258     -30
ls_options                                            31       -     -31
------------------------------------------------------------------------------
(add/remove: 0/6 grow/shrink: 3/129 up/down: 86/-1383)      Total: -1297 bytes
   text	   data	    bss	    dec	    hex	filename
 915428	    485	   6876	 922789	  e14a5	busybox_old
 914629	    485	   6872	 921986	  e1182	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-08 21:55:02 +02:00
Denys Vlasenko
036585a911 getopt32: remove applet_long_options 
FEATURE_GETOPT_LONG made dependent on LONG_OPTS.

The folloving options are removed, now LONG_OPTS enables long options
for affected applets:
FEATURE_ENV_LONG_OPTIONS	FEATURE_EXPAND_LONG_OPTIONS
FEATURE_UNEXPAND_LONG_OPTIONS	FEATURE_MKDIR_LONG_OPTIONS
FEATURE_MV_LONG_OPTIONS		FEATURE_RMDIR_LONG_OPTIONS
FEATURE_ADDGROUP_LONG_OPTIONS	FEATURE_ADDUSER_LONG_OPTIONS
FEATURE_HWCLOCK_LONG_OPTIONS	FEATURE_NSENTER_LONG_OPTS
FEATURE_CHCON_LONG_OPTIONS	FEATURE_RUNCON_LONG_OPTIONS

They either had a small number of long options, or their long options are
essential.

Example: upstream addgroup and adduser have ONLY longopts,
we should probably go further and get rid
of non-standard short options.

To this end, make addgroup and adduser "select LONG_OPTS".
We had this breakage caused by us even in our own package!
	#if ENABLE_LONG_OPTS || !ENABLE_ADDGROUP
                /* We try to use --gid, not -g, because "standard" addgroup
                 * has no short option -g, it has only long --gid.
                 */
                argv[1] = (char*)"--gid";
	#else
                /* Breaks if system in fact does NOT use busybox addgroup */
                argv[1] = (char*)"-g";
	#endif

xargs: its lone longopt no longer depends on DESKTOP, only on LONG_OPTS.

hwclock TODO: get rid of incompatible -t, -l aliases to --systz, --localtime

Shorten help texts by omitting long option when short opt alternative exists.

Reduction of size comes from the fact that store of an immediate
(an address of longopts) to a fixed address (global variable)
is a longer insn than pushing that immediate or passing it in a register.
This effect is CPU-agnostic.

function                                             old     new   delta
getopt32                                            1350      22   -1328
vgetopt32                                              -    1318   +1318
getopt32long                                           -      24     +24
tftpd_main                                           562     567      +5
scan_recursive                                       376     380      +4
collect_cpu                                          545     546      +1
date_main                                           1096    1095      -1
hostname_main                                        262     259      -3
uname_main                                           259     255      -4
setpriv_main                                         362     358      -4
rmdir_main                                           191     187      -4
mv_main                                              562     558      -4
ipcalc_main                                          548     544      -4
ifenslave_main                                       641     637      -4
gzip_main                                            192     188      -4
gunzip_main                                           77      73      -4
fsfreeze_main                                         81      77      -4
flock_main                                           318     314      -4
deluser_main                                         337     333      -4
cp_main                                              374     370      -4
chown_main                                           175     171      -4
applet_long_options                                    4       -      -4
xargs_main                                           894     889      -5
wget_main                                           2540    2535      -5
udhcpc_main                                         2767    2762      -5
touch_main                                           436     431      -5
tar_main                                            1014    1009      -5
start_stop_daemon_main                              1033    1028      -5
sed_main                                             682     677      -5
script_main                                         1082    1077      -5
run_parts_main                                       330     325      -5
rtcwake_main                                         459     454      -5
od_main                                             2169    2164      -5
nl_main                                              201     196      -5
modprobe_main                                        773     768      -5
mkdir_main                                           160     155      -5
ls_main                                              568     563      -5
install_main                                         773     768      -5
hwclock_main                                         411     406      -5
getopt_main                                          622     617      -5
fstrim_main                                          256     251      -5
env_main                                             198     193      -5
dumpleases_main                                      635     630      -5
dpkg_main                                           3991    3986      -5
diff_main                                           1355    1350      -5
cryptpw_main                                         233     228      -5
cpio_main                                            593     588      -5
conspy_main                                         1135    1130      -5
chpasswd_main                                        313     308      -5
adduser_main                                         887     882      -5
addgroup_main                                        416     411      -5
ftpgetput_main                                       351     345      -6
get_terminal_width_height                            242     234      -8
expand_main                                          690     680     -10
static.expand_longopts                                18       -     -18
static.unexpand_longopts                              27       -     -27
mkdir_longopts                                        28       -     -28
env_longopts                                          30       -     -30
static.ifenslave_longopts                             34       -     -34
mv_longopts                                           46       -     -46
static.rmdir_longopts                                 48       -     -48
packed_usage                                       31739   31687     -52
------------------------------------------------------------------------------
(add/remove: 2/8 grow/shrink: 3/49 up/down: 1352/-1840)      Total: -488 bytes
   text	   data	    bss	    dec	    hex	filename
 915681	    485	   6880	 923046	  e15a6	busybox_old
 915428	    485	   6876	 922789	  e14a5	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-08 17:09:40 +02:00
Denys Vlasenko
76b65624b9 unxz: get_le32 macro is obviously wrong 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-07 20:56:54 +02:00
Denys Vlasenko
dd5a40246b getopt32: move support for "always treat first arg as option" to users (tar/ar) 
Now getopt() never leaks (and never performs) any xmalloc's.

function                                             old     new   delta
ar_main                                              522     556     +34
tar_main                                             986    1014     +28
getopt32                                            1458    1350    -108
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 62/-108)           Total: -46 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-04 16:46:17 +02:00
Denys Vlasenko
18e781dc02 config: do not use `a' quoting in help texts 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-08-02 14:12:48 +02:00
Natanael Copa
46f3f16b58 unzip: fix regression on big-endian machines 
This fixes a regression which was introduced with commit 2a0867a5
("unzip: optional support for bzip2 and lzma") and causes unzip to exit
with error when extracting archives:

  unzip: unsupported method 2048

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-27 15:38:55 +02:00
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
72089cf6b4 config: deindent all help texts 
Those two spaces after tab have no effect, and always a nuisance when editing.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-21 09:50:55 +02:00
Denys Vlasenko
75d151e31d libarchive: FEATURE_LZMA_FAST should be visible if FEATURE_SEAMLESS_LZMA 
While at it, tweak some config help texts.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-20 23:28:00 +02:00
Denys Vlasenko
ad37abf423 unzip: sanitize filename length: malloc(1234mb) is not funny 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-20 20:21:50 +02:00
Denys Vlasenko
997ad2c64a unzip: implement -j, closes 9126 
function                                             old     new   delta
unzip_main                                          2642    2703     +61
packed_usage                                       31747   31770     +23
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 84/0)               Total: 84 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-20 20:04:49 +02:00
Denys Vlasenko
bff9bbc73f unzip: robustify overwrite checks 
function                                             old     new   delta
get_lstat_mode                                         -      55     +55
unzip_main                                          2667    2642     -25
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 55/-25)             Total: 30 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-20 18:56:05 +02:00
Denys Vlasenko
13ae85edd1 unzip: support symlinks. Closes 10031 
function                                             old     new   delta
unzip_main                                          2519    2667    +148

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-20 18:34:51 +02:00
Denys Vlasenko
ebe3c35d00 bzcat,zcat: simplify code if gunzip/bunzip2 is not selected 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-20 16:25:03 +02:00
Denys Vlasenko
4eed2c6c50 Update menuconfig items with approximate applet sizes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-18 22:01:24 +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
38d966943f unzip: TODO for symlink support 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-11 22:10:52 +02:00
Peter Korsgaard
d13c1762a8 dpkg: fix CONFIG_FEATURE_CLEAN_UP handling 
dpkg moved to away from dynamically allocating the hashtables in commit
c87339d584 (dpkg: trivial code shrinkage, and redo G trick correctly) almost
ten years ago, but the cleanup code was never adjusted to match.

Glibc loudly complains about this:

*** Error in `dpkg': free(): invalid pointer: 0x0000007fac3478c0 ***

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-05 23:15:13 +02:00
Denys Vlasenko
034ceabe82 bzcat: compile bunzip2_main() if BZCAT. 
Currently, BZCAT (and BUNZIP2) selects FEATURE_BZIP2_DECOMPRESS,
thus, "#if ENABLE_FEATURE_BZIP2_DECOMPRESS" around bunzip2_main()
is sufficient. But let's robustify it.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-04 16:23:36 +02:00
Denys Vlasenko
d4e4fdb5ce fixes for bugs found by make_single_applets.sh 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-07-03 21:31:16 +02:00
Denys Vlasenko
1c013fae28 archival: add option -k "keep" to gzip/bzip2/lzop, add -U "nokeep" to lzop 
function                                             old     new   delta
bbunpack                                             745     779     +34
lzop_main                                             93     121     +28
do_lzo_compress                                      320     328      +8
packed_usage                                       31685   31653     -32
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 70/-32)             Total: 38 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-06-15 18:07:04 +02:00
Denys Vlasenko
5d72ae53c9 fix "ifdef ENABLE_foo": should always be "#if ENABLE_foo" 
function                                             old     new   delta
pack_gzip                                           1729    1789     +60
fill_window                                          220     216      -4
static.gzip_level_config                              24       -     -24
gzip_main                                            275     192     -83
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 60/-111)           Total: -51 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-06-15 17:11:59 +02:00
Ming Liu
978307f8a1 tar: add IF_FEATURE_* checks 
A following linking error was observed:
| ==========
| archival/lib.a(tar.o): In function `tar_main':
| archival/tar.c:1168: undefined reference to `unpack_Z_stream'
| archival/tar.c:1168: undefined reference to `unpack_Z_stream'
| ld: busybox_unstripped: hidden symbol `unpack_Z_stream' isn't defined
| ld: final link failed: Bad value

this happened with clang compiler, with the following configs:
| CONFIG_TAR=y
| # CONFIG_FEATURE_SEAMLESS_Z is not set

which can be fixed by adding IF_FEATURE_* checks in.

Signed-off-by: Ming Liu <peter.x.liu@external.atlascopco.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-06-13 19:13:37 +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
Denys Vlasenko
876c121ccb whitespace fix 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-03-24 15:00:12 +01:00
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
("Allow 'gzip -d' and 'bzip2 -d' without gunzip or bunzip2")

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 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
205d48e948 *: add comment about APPLET_ODDNAME format 
It confused me more than once

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-29 14:57:33 +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
f560422fa0 Big cleanup in config help and description 
Redundant help texts (one which only repeats the description)
are deleted.

Descriptions and help texts are trimmed.

Some config options are moved, even across menus.

No config option _names_ are changed.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-01-10 14:58:54 +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
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
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
Aaro Koskinen
bbd53216f8 gzip: add support for compression levels 4-9 
function                                             old     new   delta
gzip_main                                            192     282     +90
static.gzip_level_config                               -      24     +24
packed_usage                                       30439   30459     +20
fill_window                                          216     220      +4
pack_gzip                                           1789    1729     -60
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/1 up/down: 138/-60)            Total: 78 bytes

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-04-26 14:22:37 +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
b62d4d9d57 gzip: trivial code shrink -5 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-02-03 15:25:17 +01:00
Denys Vlasenko
f7f70bf1b3 gzip: speed up and shrink put_16bit() 
function                                             old     new   delta
put_16bit                                            104      98      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-02-02 16:07:07 +01:00
Rich Felker
7f7ade1964 gzip: do not store timestamp in gzip header 
Storing the original file's modification time in the output file is
harmful (precludes deterministic results) and unlike official gzip,
the busybox version provides no way to suppress this behavior; the -n
option is silently ignored. Rather than trying to make -n work, this
patch just removes the timestamp-storing functionality. It should be
considered deprecated anyway; it's not Y2038-safe and gunzip ignores
it by default.

Per RFC 1952, 0 is the correct value to store to indicate that there
is no timestamp.

Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-02-02 16:01:16 +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
11775edbfc randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-12-22 19:37:05 +01:00
Denys Vlasenko
acb8be7217 tar: fix "tar -cJ" ignoring -J option. closes 7706 
function                                             old     new   delta
tar_main                                             895     938     +43
vfork_compressor                                     206     191     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 43/-15)             Total: 28 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-12-11 15:34:02 +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
184b266917 cpio: reinstate "options:" line in help text 
Otherwise, help text is confusing: where do operation modes end
and where options start?

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-06-30 17:19:17 +02:00
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
Daniel Borca
df0d2cd837 dpkg-deb: cosmetic correction to usage text 
Signed-off-by: Daniel Borca <dborca@yahoo.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-28 12:38:25 +01:00
Denys Vlasenko
0545e3b69a tar: prevent empty file to be treated as valid tarball 
function                                             old     new   delta
tar_main                                             879     895     +16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-19 17:17:48 +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
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
36184a487d archival/*: move "applet:" snippets into .c files 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-14 09:54:24 +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
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
SASAKI Suguru
73fbe9dc86 tar: fix tar -T to add entries in the exact order as the input list 
This fixes tar to order files in tarball correctly in this case:

$ touch 1 2 3; echo -e '1\n2\n3' | tar -T- -c | tar t
1
2
3

Signed-off-by: SASAKI Suguru <suguru@sonik.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-08-15 12:19:29 +02:00
Denys Vlasenko
d0bc708cb5 unpackers: by users' request, print compression percentage if -v and DESKTOP 
function                                             old     new   delta
bbunpack                                             634     731     +97

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-30 05:41:11 +02:00