oweals/busybox.git
7 years agohexedit: implement "[enter] goto offset" key
Denys Vlasenko [Thu, 14 Sep 2017 08:51:12 +0000 (10:51 +0200)]
hexedit: implement "[enter] goto offset" key

This is a must if you need to edit sector 123456789999 on your /dev/disk.

   text    data     bss     dec     hex filename
 922745     481    6832  930058   e310a busybox_old
 923023     481    6832  930336   e3220 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohexedit: restore screen on exit
Denys Vlasenko [Thu, 14 Sep 2017 07:42:40 +0000 (09:42 +0200)]
hexedit: restore screen on exit

function                                             old     new   delta
hexedit_main                                         998    1082     +84
restore_term                                           -      29     +29
remap                                                168     173      +5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 118/0)             Total: 118 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohexedit: optimize output buffering
Denys Vlasenko [Wed, 13 Sep 2017 22:04:16 +0000 (00:04 +0200)]
hexedit: optimize output buffering

function                                             old     new   delta
hexedit_main                                         970     998     +28

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohexedit: implement page up/down
Denys Vlasenko [Wed, 13 Sep 2017 21:02:51 +0000 (23:02 +0200)]
hexedit: implement page up/down

function                                             old     new   delta
hexedit_main                                         924     970     +46

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years ago*: use ESC define instead of "\033"; use ESC[m instead of ESC[0m
Denys Vlasenko [Wed, 13 Sep 2017 20:48:30 +0000 (22:48 +0200)]
*: use ESC define instead of "\033"; use ESC[m instead of ESC[0m

   text    data     bss     dec     hex filename
 922535     481    6832  929848   e3038 busybox_old
 922534     481    6832  929847   e3037 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohexedit: smarter redraw
Denys Vlasenko [Wed, 13 Sep 2017 19:38:55 +0000 (21:38 +0200)]
hexedit: smarter redraw

function                                             old     new   delta
format_line                                          197     209     +12
hexedit_main                                         930     924      -6
redraw_cur_line                                      104      94     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 12/-16)             Total: -4 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohexedit: new applet
Denys Vlasenko [Wed, 13 Sep 2017 17:20:27 +0000 (19:20 +0200)]
hexedit: new applet

function                                             old     new   delta
hexedit_main                                           -     930    +930
format_line                                            -     197    +197
remap                                                  -     168    +168
move_mapping_further                                   -     141    +141
move_mapping_lower                                     -     107    +107
redraw_cur_line                                        -     104    +104
packed_usage                                       31802   31812     +10
applet_names                                        2688    2696      +8
applet_main                                         1552    1556      +4
applet_suid                                           97      98      +1
applet_install_loc                                   194     195      +1
------------------------------------------------------------------------------
(add/remove: 7/0 grow/shrink: 5/0 up/down: 1671/0)           Total: 1671 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agonetworking/interface.c: remove superfluous "& 0377"
Denys Vlasenko [Tue, 12 Sep 2017 15:54:28 +0000 (17:54 +0200)]
networking/interface.c: remove superfluous "& 0377"

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agosetfattr: new applet
Denys Vlasenko [Fri, 8 Sep 2017 18:55:59 +0000 (20:55 +0200)]
setfattr: new applet

function                                             old     new   delta
setfattr_main                                          -     189    +189
packed_usage                                       31516   31588     +72
setxattr                                               -      53     +53
lsetxattr                                              -      53     +53
removexattr                                            -      37     +37
lremovexattr                                           -      37     +37
applet_names                                        2649    2658      +9
find_applet_by_name                                  124     128      +4
applet_main                                         1532    1536      +4
------------------------------------------------------------------------------
(add/remove: 7/0 grow/shrink: 4/0 up/down: 458/0)             Total: 458 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agobuild system: fix a compiler warning
Denys Vlasenko [Thu, 7 Sep 2017 12:50:00 +0000 (14:50 +0200)]
build system: fix a compiler warning

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agobuild system: fix "allnoconfig" to clear all options. Closes 10296
Denys Vlasenko [Thu, 7 Sep 2017 12:40:28 +0000 (14:40 +0200)]
build system: fix "allnoconfig" to clear all options. Closes 10296

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agochat: do not die when HANGUP param is missing. Closes 10016
Denys Vlasenko [Tue, 5 Sep 2017 17:16:40 +0000 (19:16 +0200)]
chat: do not die when HANGUP param is missing. Closes 10016

function                                             old     new   delta
chat_main                                           1356    1379     +23

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohttpd: skip "Status: " from CGI, including space. Closes 10291
Denys Vlasenko [Fri, 1 Sep 2017 15:06:12 +0000 (17:06 +0200)]
httpd: skip "Status: " from CGI, including space. Closes 10291

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoklibc-utils: add ipconfig.c work-in-progress
Denys Vlasenko [Fri, 1 Sep 2017 10:48:15 +0000 (12:48 +0200)]
klibc-utils: add ipconfig.c work-in-progress

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoxargs: fix a thinko in last commit
Denys Vlasenko [Wed, 30 Aug 2017 11:44:27 +0000 (13:44 +0200)]
xargs: fix a thinko in last commit

IF_FEATURE_XARGS_SUPPORT_PARALLEL(char *opt_a = NULL;)
is replaced with
IF_FEATURE_XARGS_SUPPORT_ARGS_FILE

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoxargs: support -a FILE
Johannes Schindelin [Fri, 25 Aug 2017 20:42:05 +0000 (22:42 +0200)]
xargs: support -a FILE

The GNU-specific option -a lets xargs read the arguments from a file
rather than from stdin.

This is particularly convenient when debugging in gdb interactively,
and it might be of more general use.

function                                             old     new   delta
xargs_main                                           788     823     +35
packed_usage                                       31683   31671     -12

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoklibc-utils: remove accidental "or later" licensing wording.
Denys Vlasenko [Tue, 29 Aug 2017 17:44:45 +0000 (19:44 +0200)]
klibc-utils: remove accidental "or later" licensing wording.

I (slightly) prefer my code to be under "GPLv2 only" license.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoudhcpc: show only short opts in --help text
Denys Vlasenko [Tue, 29 Aug 2017 14:51:17 +0000 (16:51 +0200)]
udhcpc: show only short opts in --help text

function                                             old     new   delta
packed_usage                                       31615   31501    -114

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoi2c_tools: tweak --help text
Denys Vlasenko [Tue, 29 Aug 2017 13:44:01 +0000 (15:44 +0200)]
i2c_tools: tweak --help text

function                                             old     new   delta
packed_usage                                       31624   31615      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agosetpriv: placete "declaration of 'index' shadows a global declaration" warning
Denys Vlasenko [Tue, 29 Aug 2017 13:34:38 +0000 (15:34 +0200)]
setpriv: placete "declaration of 'index' shadows a global declaration" warning

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: fix false positive in unset.tests
Denys Vlasenko [Tue, 29 Aug 2017 12:35:58 +0000 (14:35 +0200)]
hush: fix false positive in unset.tests

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: GETOPT_RESET() _after_ getopts too.
Denys Vlasenko [Tue, 29 Aug 2017 12:32:17 +0000 (14:32 +0200)]
hush: GETOPT_RESET() _after_ getopts too.

NOEXEC'ed applets which use getopt() need this.

function                                             old     new   delta
builtin_getopts                                      403     413     +10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: reuse "OPTIND=..." string
Denys Vlasenko [Tue, 29 Aug 2017 11:48:49 +0000 (13:48 +0200)]
hush: reuse "OPTIND=..." string

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: fix "getopts" builtin to not be upset by other builtins calling getopt()
Denys Vlasenko [Tue, 29 Aug 2017 11:38:30 +0000 (13:38 +0200)]
hush: fix "getopts" builtin to not be upset by other builtins calling getopt()

function                                             old     new   delta
builtin_getopts                                      363     403     +40
unset_local_var_len                                  185     215     +30
set_local_var                                        440     466     +26
reset_traps_to_defaults                              151     157      +6
pseudo_exec_argv                                     320     326      +6
install_special_sighandlers                           52      58      +6
pick_sighandler                                       62      65      +3
execvp_or_die                                         85      88      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/0 up/down: 120/0)             Total: 120 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoi2c-tools: don't include linux/i2c-dev.h
Bartosz Golaszewski [Tue, 29 Aug 2017 10:31:22 +0000 (12:31 +0200)]
i2c-tools: don't include linux/i2c-dev.h

Installing headers from upstream i2c-tools makes it impossible to
build the busybox version due to redefined symbols. This is caused by
the fact that linux/i2c-dev.h from i2c-tools overwrites the one from
linux uapi and defines symbols already defined by linux' linux/i2c.h.

Drop this include and simply re-implement the relevant defines from
linux/i2c-dev.h in miscutils/i2c-tools.c.

Tested by building on systems with and without i2c-tools headers.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoi2c-tools: remove unneeded include
Bartosz Golaszewski [Mon, 28 Aug 2017 09:49:24 +0000 (11:49 +0200)]
i2c-tools: remove unneeded include

We no longer use common_bufsiz1 in i2c-tools.

Don't include common_bufsiz.h.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agokill: add '--' option to separate options from arguments
Ron Yorston [Sun, 27 Aug 2017 07:25:18 +0000 (08:25 +0100)]
kill: add '--' option to separate options from arguments

Using a negative pid to send TERM to a process group results in an
obscure error:

   $ ./busybox kill -12345
   kill: bad signal name '12345'

This is intended. Manpage says:
ARGUMENTS
       pid    Each pid can be one of four things:
...
              -n     where n is larger than 1.  All processes in process group
                     n are signaled.  When an argument of  the  form  '-n'  is
                     given,  and it is meant to denote a process group, either
                     a signal must be specified first, or the argument must be
                     preceded  by a '--' option, otherwise it will be taken as
                     the signal to send.

However, we did not support "--". Add this capability to BusyBox.

function                                             old     new   delta
kill_main                                            993     999      +6

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoxargs: optional support for -P NUM. Closes 9511
Denys Vlasenko [Thu, 24 Aug 2017 11:23:54 +0000 (13:23 +0200)]
xargs: optional support for -P NUM. Closes 9511

Based on patch by Johannes Schindelin <johannes.schindelin@gmx.de>

function                                             old     new   delta
xargs_exec                                             -     294    +294
packed_usage                                       31757   31772     +15
xargs_main                                           787     719     -68
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 309/-68)           Total: 241 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoxargs: code shrink
Denys Vlasenko [Thu, 24 Aug 2017 09:21:27 +0000 (11:21 +0200)]
xargs: code shrink

function                                             old     new   delta
xargs_main                                           827     787     -40

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agosed: in '/regexp/cmd1;//cmd2', cmd2 should use the same regexp as cmd1
Denys Vlasenko [Wed, 23 Aug 2017 15:56:03 +0000 (17:56 +0200)]
sed: in '/regexp/cmd1;//cmd2', cmd2 should use the same regexp as cmd1

function                                             old     new   delta
get_address                                          165     211     +46

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years ago*: fix fallout from opt_complementary conversion
Denys Vlasenko [Wed, 23 Aug 2017 13:08:25 +0000 (15:08 +0200)]
*: fix fallout from opt_complementary conversion

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: more s/error/perror/ for better error reporting
Denys Vlasenko [Wed, 23 Aug 2017 12:52:56 +0000 (14:52 +0200)]
ash: more s/error/perror/ for better error reporting

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: when cd fails, say why
Johannes Schindelin [Tue, 22 Aug 2017 20:03:22 +0000 (22:03 +0200)]
ash: when cd fails, say why

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: report reason when a script file could not be opened
Johannes Schindelin [Tue, 22 Aug 2017 20:03:17 +0000 (22:03 +0200)]
ash: report reason when a script file could not be opened

It is always nicer to give the user some sort of indication why an
operation failed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agotar: fix handling of first argument without '-'
Ron Yorston [Tue, 22 Aug 2017 15:33:06 +0000 (16:33 +0100)]
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>
7 years agosendmail: fix segfault if "To: email1,email2" is used
Denys Vlasenko [Tue, 22 Aug 2017 13:53:16 +0000 (15:53 +0200)]
sendmail: fix segfault if "To: email1,email2" is used

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agolibarchive: fix build failure on NOMMU systems
Ron Yorston [Tue, 22 Aug 2017 10:34:03 +0000 (11:34 +0100)]
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>
7 years agops: fix build failure if FEATURE_PS_TIME is disabled
Ron Yorston [Tue, 22 Aug 2017 10:21:56 +0000 (11:21 +0100)]
ps: fix build failure if FEATURE_PS_TIME is disabled

The global seconds_since_boot is only defined if FEATURE_PS_TIME
is enabled.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agorpm,rpm2cpio: do not compile not-configurred parts of rpm.c
Denys Vlasenko [Tue, 22 Aug 2017 13:33:04 +0000 (15:33 +0200)]
rpm,rpm2cpio: do not compile not-configurred parts of rpm.c

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agorun-init: if doing dry run, do not require pid==1
Denys Vlasenko [Tue, 22 Aug 2017 09:40:27 +0000 (11:40 +0200)]
run-init: if doing dry run, do not require pid==1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agops: allow ps config options if minips is enabled
Kang-Che Sung [Sat, 19 Aug 2017 06:18:27 +0000 (14:18 +0800)]
ps: allow ps config options if minips is enabled

Follow-up of commit ab77e81a8527fa11a4f9392d97c2da037d6f4f98
"klibc-utils: new applets: resume, nuke, minips"

Also put FEATURE_PS_UNUSUAL_SYSTEMS to under FEATURE_PS_TIME in the
menu.

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agorun-init: implement -n "dry run"
Denys Vlasenko [Tue, 22 Aug 2017 08:37:30 +0000 (10:37 +0200)]
run-init: implement -n "dry run"

function                                             old     new   delta
switch_root_main                                     637     706     +69
packed_usage                                       31743   31757     +14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 83/0)               Total: 83 bytes
   text    data     bss     dec     hex filename
 915247     563    5844  921654   e1036 busybox_old
 915303     563    5844  921710   e106e busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agorun-init: new applet
Denys Vlasenko [Mon, 21 Aug 2017 17:30:01 +0000 (19:30 +0200)]
run-init: new applet

function                                             old     new   delta
switch_root_main                                     354     637    +283
drop_usermodehelper                                    -     157    +157
cap_name_to_number                                     -      77     +77
packed_usage                                       31707   31743     +36
applet_names                                        2665    2674      +9
applet_main                                         1544    1548      +4
applet_install_loc                                   193     194      +1
setpriv_main                                         933     928      -5
getcaps                                              131     122      -9
parse_cap                                            117      29     -88
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 5/3 up/down: 567/-102)          Total: 465 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agolibbb: move capability names code to libbb
Denys Vlasenko [Mon, 21 Aug 2017 00:14:19 +0000 (02:14 +0200)]
libbb: move capability names code to libbb

function                                             old     new   delta
cap_name_to_number                                     -      77     +77
parse_cap                                            117      29     -88
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/1 up/down: 77/-88)            Total: -11 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agosetpriv: code shrink
Denys Vlasenko [Sun, 20 Aug 2017 18:21:31 +0000 (20:21 +0200)]
setpriv: code shrink

function                                             old     new   delta
parse_cap                                            125     117      -8
setpriv_main                                         949     933     -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-24)             Total: -24 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agonuke: shorten help text
Denys Vlasenko [Fri, 18 Aug 2017 17:23:51 +0000 (19:23 +0200)]
nuke: shorten help text

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoklibc-utils: new applets: resume, nuke, minips
Denys Vlasenko [Fri, 18 Aug 2017 17:15:29 +0000 (19:15 +0200)]
klibc-utils: new applets: resume, nuke, minips

minips is a pure alias to ps, just in case someone needs 100% klibc-utils compat.
nuke is a primitive version of "rm -rf" without options and error checks. ~30 bytes.

resume is a tool for initramfs which resumes from a given block device.

function                                             old     new   delta
resume_main                                            -     582    +582
packed_usage                                       31640   31712     +72
nuke_main                                              -      28     +28
xstrtoull                                              -      24     +24
applet_names                                        2646    2665     +19
applet_main                                         1532    1544     +12
applet_suid                                           96      97      +1
applet_install_loc                                   192     193      +1
applet_flags                                          96      97      +1
------------------------------------------------------------------------------
(add/remove: 5/0 grow/shrink: 6/0 up/down: 740/0)             Total: 740 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agosetpriv: accept any case in capability names
Denys Vlasenko [Fri, 18 Aug 2017 17:11:57 +0000 (19:11 +0200)]
setpriv: accept any case in capability names

This should work: setpriv --inh-caps -SyS_ReSOuRCE sh

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: stage backported LINENO support as a separate patch
Denys Vlasenko [Thu, 17 Aug 2017 14:43:33 +0000 (16:43 +0200)]
ash: stage backported LINENO support as a separate patch

Looks biggish and not particularly useful, but may be easier to just eat
the impact if future backports from dash would be otherwise increasingly
difficult.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agotelnet: "-a" + "-l USER" should respect USER
Denys Vlasenko [Thu, 17 Aug 2017 11:37:51 +0000 (13:37 +0200)]
telnet: "-a" + "-l USER" should respect USER

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: trivial code shrink in builtin_getopts
Denys Vlasenko [Thu, 17 Aug 2017 10:36:39 +0000 (12:36 +0200)]
hush: trivial code shrink in builtin_getopts

function                                             old     new   delta
builtin_getopts                                      368     363      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoawk: stop on first non-option, closes 9861
Denys Vlasenko [Wed, 16 Aug 2017 17:07:53 +0000 (19:07 +0200)]
awk: stop on first non-option, closes 9861

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years ago*: stop using atexit in non-debug build: saves ~260 in bss with musl
Denys Vlasenko [Wed, 16 Aug 2017 15:45:32 +0000 (17:45 +0200)]
*: stop using atexit in non-debug build: saves ~260 in bss with musl

"builtin" below is atexit's 32-element global array of functions to call.

function                                             old     new   delta
top_main                                             879     889     +10
launch_helper                                        185     193      +8
powertop_main                                       1555    1559      +4
sed_main                                             651     650      -1
slot                                                   4       -      -4
call                                                   4       -      -4
atexit                                                23       -     -23
kill_helper                                           31       -     -31
__funcs_on_exit                                      120       -    -120
__cxa_atexit                                         168       -    -168
builtin                                              260       -    -260
------------------------------------------------------------------------------
(add/remove: 0/8 grow/shrink: 3/1 up/down: 22/-611)          Total: -589 bytes
   text    data     bss     dec     hex filename
 912364     563    6132  919059   e0613 busybox_old
 912035     563    5844  918442   e03aa busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agosyslogd,logger: code shrink for musl
Denys Vlasenko [Wed, 16 Aug 2017 13:05:36 +0000 (15:05 +0200)]
syslogd,logger: code shrink for musl

function                                             old     new   delta
syslogd_main                                        1252    1910    +658
logger_main                                          277     393    +116
timestamp_and_log                                    434     542    +108
static.__compound_literal                              -     104    +104
parse_fac_prio_20                                    137       -    -137
pencode                                              167       -    -167
parse_syslogdcfg                                     715       -    -715
------------------------------------------------------------------------------
(add/remove: 1/3 grow/shrink: 3/0 up/down: 986/-1019)         Total: -33 bytes
   text    data     bss     dec     hex filename
 912506     563    6132  919201   e06a1 busybox_old
 912364     563    6132  919059   e0613 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agofsck_minix,mkfs_minix: fix "strict-aliasing" warnings
Denys Vlasenko [Wed, 16 Aug 2017 09:53:48 +0000 (11:53 +0200)]
fsck_minix,mkfs_minix: fix "strict-aliasing" warnings

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agouevent: placate gcc
Denys Vlasenko [Wed, 16 Aug 2017 09:45:09 +0000 (11:45 +0200)]
uevent: placate gcc

How sizeof() can be an aliasing problem?

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agotop: switch to malloced "globals".
Denys Vlasenko [Wed, 16 Aug 2017 09:40:10 +0000 (11:40 +0200)]
top: switch to malloced "globals".

This seems to be more efficient:

function                                             old     new   delta
clearmems                                              -      28     +28
display_process_list                                1001    1018     +17
read_cpu_jiffy                                       171     177      +6
do_stats                                             194     198      +4
reset_term                                            20      23      +3
topmem_sort                                           63      65      +2
mult_lvl_cmp                                          44      45      +1
get_jiffy_counts                                     247     248      +1
display_topmem_process_list                          549     546      -3
top_main                                             912     879     -33
handle_input                                         630     549     -81
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/3 up/down: 62/-117)           Total: -55 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: unset OPTARG if getopts exits 1, support OPTERR=0 behavior
Denys Vlasenko [Tue, 15 Aug 2017 13:44:41 +0000 (15:44 +0200)]
ash: unset OPTARG if getopts exits 1, support OPTERR=0 behavior

function                                             old     new   delta
getoptscmd                                           522     547     +25

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash,hush: comment and debug tweaks, no code changes
Denys Vlasenko [Tue, 15 Aug 2017 13:27:41 +0000 (15:27 +0200)]
ash,hush: comment and debug tweaks, no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: one "current line = 1" might be missing, fix that
Denys Vlasenko [Mon, 14 Aug 2017 17:46:56 +0000 (19:46 +0200)]
ash: one "current line = 1" might be missing, fix that

I'm not sure this is necessary, but dash has this init here.
Just in case, do it too.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: update testsuite (we now error out on ${#=})
Denys Vlasenko [Mon, 14 Aug 2017 13:01:32 +0000 (15:01 +0200)]
ash: update testsuite (we now error out on ${#=})

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: [PARSER] Catch variable length expansions on non-existant specials
Denys Vlasenko [Mon, 14 Aug 2017 12:23:45 +0000 (14:23 +0200)]
ash: [PARSER] Catch variable length expansions on non-existant specials

Upstream commit:

    Date: Thu, 30 Oct 2014 11:53:35 +0800
    [PARSER] Catch variable length expansions on non-existant specials

    Currently we only check special variable names that follow directly
    after $ or ${.  So errors such as ${#&} are not caught.  This patch
    fixes that by moving the is_special check to just before we print out
    the special variable name.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
function                                             old     new   delta
readtoken1                                          2630    2635      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agobuild system: remove unused CONFIG_FEATURE_HAVE_RPC
Denys Vlasenko [Mon, 14 Aug 2017 10:25:55 +0000 (12:25 +0200)]
build system: remove unused CONFIG_FEATURE_HAVE_RPC

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoshell: tweak getopts tests, no code changes
Denys Vlasenko [Sun, 13 Aug 2017 00:59:00 +0000 (02:59 +0200)]
shell: tweak getopts tests, no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: implement "silent" optstrings of ":opts"
Denys Vlasenko [Fri, 11 Aug 2017 15:21:14 +0000 (17:21 +0200)]
hush: implement "silent" optstrings of ":opts"

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: add a test which fails due to uclibc bug in getopt()
Denys Vlasenko [Fri, 11 Aug 2017 15:00:39 +0000 (17:00 +0200)]
hush: add a test which fails due to uclibc bug in getopt()

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: fix redirect code (was using uninitialized variables)
Denys Vlasenko [Fri, 11 Aug 2017 13:41:39 +0000 (15:41 +0200)]
hush: fix redirect code (was using uninitialized variables)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoshell: add OPTARG poisoning to getopt_optarg.tests
Denys Vlasenko [Fri, 11 Aug 2017 00:37:48 +0000 (02:37 +0200)]
shell: add OPTARG poisoning to getopt_optarg.tests

ash fails this!

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: teach getopts to set/unset OPTARG
Denys Vlasenko [Fri, 11 Aug 2017 00:05:21 +0000 (02:05 +0200)]
hush: teach getopts to set/unset OPTARG

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: getopts builtin
Denys Vlasenko [Thu, 10 Aug 2017 23:32:46 +0000 (01:32 +0200)]
hush: getopts builtin

function                                             old     new   delta
builtin_getopts                                        -     271    +271
bltins1                                              372     384     +12
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 283/0)             Total: 283 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: fix "unset OPTIND" throwing an error message
Denys Vlasenko [Thu, 10 Aug 2017 22:59:36 +0000 (00:59 +0200)]
ash: fix "unset OPTIND" throwing an error message

Added test was failing quite severely. Now only one subtest fails
(OPTERR=0 has no effect).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: optional times builtin
Denys Vlasenko [Thu, 10 Aug 2017 14:34:03 +0000 (16:34 +0200)]
hush: optional times builtin

function                                             old     new   delta
builtin_times                                          -     108    +108
bltins1                                              360     372     +12
static.times_tbl                                       -       9      +9
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/0 up/down: 129/0)             Total: 129 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agofdisk: typo fix
Denys Vlasenko [Thu, 10 Aug 2017 13:12:11 +0000 (15:12 +0200)]
fdisk: typo fix

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agops: improve TIME column for large times: showing "14453:50" is not good
Denys Vlasenko [Thu, 10 Aug 2017 13:01:43 +0000 (15:01 +0200)]
ps: improve TIME column for large times: showing "14453:50" is not good

function                                             old     new   delta
format_time                                            -     110    +110
func_time                                             59      50      -9
func_etime                                            67      53     -14
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 110/-23)            Total: 87 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agops: make it NOEXEC
Denys Vlasenko [Thu, 10 Aug 2017 12:15:52 +0000 (14:15 +0200)]
ps: make it NOEXEC

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agops: stop using AT_CLKTCK, there are more standard ways
Denys Vlasenko [Thu, 10 Aug 2017 12:10:56 +0000 (14:10 +0200)]
ps: stop using AT_CLKTCK, there are more standard ways

function                                             old     new   delta
ps_main                                              537     558     +21
func_time                                             66      59      -7
get_kernel_HZ                                        102       -    -102
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/1 up/down: 21/-109)           Total: -88 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agorpm,rpm2cpio: INIT_G() was missing (it is a nop here so far)
Denys Vlasenko [Thu, 10 Aug 2017 11:22:01 +0000 (13:22 +0200)]
rpm,rpm2cpio: INIT_G() was missing (it is a nop here so far)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoHopefully fix "will break strict-aliasing rules" warning for get_le32
Denys Vlasenko [Thu, 10 Aug 2017 10:40:48 +0000 (12:40 +0200)]
Hopefully fix "will break strict-aliasing rules" warning for get_le32

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agolibarchive: do not extract unsafe symlinks unless $EXTRACT_UNSAFE_SYMLINKS=1
Denys Vlasenko [Thu, 10 Aug 2017 09:52:42 +0000 (11:52 +0200)]
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>
7 years agorpm2cpio: handle LZMA compressed rpms. closes 10166
Denys Vlasenko [Thu, 10 Aug 2017 08:35:08 +0000 (10:35 +0200)]
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>
7 years agorpm2cpio: use rpm_gettags
Denys Vlasenko [Thu, 10 Aug 2017 07:56:49 +0000 (09:56 +0200)]
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>
7 years agorpm: prepare rpm_gettags for reuse in rpm2cpio
Denys Vlasenko [Thu, 10 Aug 2017 07:41:57 +0000 (09:41 +0200)]
rpm: prepare rpm_gettags for reuse in rpm2cpio

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agorpm,rpm2cpio: put both sources into one file, no code changes
Denys Vlasenko [Thu, 10 Aug 2017 07:30:38 +0000 (09:30 +0200)]
rpm,rpm2cpio: put both sources into one file, no code changes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoUpdate NOFORK_NOEXEC.lst
Denys Vlasenko [Wed, 9 Aug 2017 17:51:17 +0000 (19:51 +0200)]
Update NOFORK_NOEXEC.lst

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoipcs: tweak output orer to match util-linux 2.28
Denys Vlasenko [Wed, 9 Aug 2017 17:27:01 +0000 (19:27 +0200)]
ipcs: tweak output orer to match util-linux 2.28

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoipcrm,ipcs: make them NOEXEC
Denys Vlasenko [Wed, 9 Aug 2017 17:24:19 +0000 (19:24 +0200)]
ipcrm,ipcs: make them NOEXEC

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoipcrm: code shrink
Denys Vlasenko [Wed, 9 Aug 2017 17:20:08 +0000 (19:20 +0200)]
ipcrm: code shrink

function                                             old     new   delta
ipcrm_main                                           698     663     -35

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agovconfig: make it NOEXEC
Denys Vlasenko [Wed, 9 Aug 2017 16:52:19 +0000 (18:52 +0200)]
vconfig: make it NOEXEC

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agorpm: code shrink
Denys Vlasenko [Wed, 9 Aug 2017 16:20:01 +0000 (18:20 +0200)]
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>
7 years agoshell: more efficient check for EOL in read
Denys Vlasenko [Wed, 9 Aug 2017 12:04:07 +0000 (14:04 +0200)]
shell: more efficient check for EOL in read

function                                             old     new   delta
shell_builtin_read                                  1334    1320     -14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agohush: implement -d DELIM option for 'read'
Denys Vlasenko [Wed, 9 Aug 2017 11:52:36 +0000 (13:52 +0200)]
hush: implement -d DELIM option for 'read'

The POSIX standard only requires the 'read' builtin to handle '-r':
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/read.html

However, Bash introduced the option '-d <DELIM>' to override IFS for
just one invocation, and it is quite useful.

We already support this in ash, let's add it to hush, too.

function                                             old     new   delta
builtin_read                                         263     284     +21
.rodata                                           163587  163589      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 23/0)               Total: 23 bytes

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoash: implement -d DELIM option for read
Johannes Schindelin [Tue, 8 Aug 2017 14:46:39 +0000 (16:46 +0200)]
ash: implement -d DELIM option for read

The POSIX standard only requires the read builtin to handle -r:
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/read.html

However, Bash introduced the option -d <DELIM> to override IFS for
just one invocation, and it is quite useful.

It is also super easy to implement in BusyBox' ash, so let's do that.

The motivation: This option is used by Git's test suite.

function                                             old     new   delta
.rodata                                           163505  163587     +82
shell_builtin_read                                  1244    1289     +45
readcmd                                              233     259     +26
builtin_read                                         258     263      +5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 158/0)             Total: 158 bytes

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agochcon: show '--reference' in help text only if LONG_OPTS=y
Xabier Oneca [Wed, 9 Aug 2017 10:18:36 +0000 (12:18 +0200)]
chcon: show '--reference' in help text only if LONG_OPTS=y

Signed-off-by: Xabier Oneca <xoneca@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agostart-stop-daemon: show only short options in --help text
Denys Vlasenko [Tue, 8 Aug 2017 21:18:05 +0000 (23:18 +0200)]
start-stop-daemon: show only short options in --help text

function                                             old     new   delta
packed_usage                                       31675   31607     -68

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agoftpgetput: show only short options in --help text
Denys Vlasenko [Tue, 8 Aug 2017 20:33:02 +0000 (22:33 +0200)]
ftpgetput: show only short options in --help text

function                                             old     new   delta
packed_usage                                       31687   31675     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agogetopt32: remove opt_complementary
Denys Vlasenko [Tue, 8 Aug 2017 19:55:02 +0000 (21:55 +0200)]
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>
7 years agogetopt32: remove applet_long_options
Denys Vlasenko [Tue, 8 Aug 2017 14:38:18 +0000 (16:38 +0200)]
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>
7 years ago*: fix up use of "getopt_longopts" for longopts not in getopt applet
Denys Vlasenko [Tue, 8 Aug 2017 12:59:35 +0000 (14:59 +0200)]
*: fix up use of "getopt_longopts" for longopts not in getopt applet

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agolibbb: simplify NOFORK/NOEXEC defines, move set_task_comm to libbb
Denys Vlasenko [Tue, 8 Aug 2017 12:09:23 +0000 (14:09 +0200)]
libbb: simplify NOFORK/NOEXEC defines, move set_task_comm to libbb

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
7 years agolibbb: rearrange NOFORK/NOEXEC code, logic is not changed
Denys Vlasenko [Mon, 7 Aug 2017 23:21:49 +0000 (01:21 +0200)]
libbb: rearrange NOFORK/NOEXEC code, logic is not changed

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>