setpriv: dump capability bounding set

As with the previous commit, this one implements the ability to dump the
capability bounding set.

function                                             old     new   delta
setpriv_main                                         838     982    +144
.rodata                                           146101  146148     +47

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

setpriv: dump inheritable capability set

The setpriv executable from util-linux also dumps out information on the
different capability sets known by the kernel. By default, these are the
inheritable capabilities, bounding capabilities and (not yet released)
the ambient capabilities, which have been introduced with Linux 4.3.
This patch introduces the ability to dump the set of inheritable
capabilities.

By default, setpriv(1) identifies capabilities by their human-readable
name, for example 'net_admin'. For unknown capabilities, though, it does
instead use the capability's value, for example 'cap_12', which is
equivalent to 'net_admin'. As there is no kernel interface to retrieve
capability names by their index, we have to declare these ourselves,
which adds to setpriv's size.

To counteract, using the human-readble name has been made configurable.
The following sizes are with the 'FEATURE_SETPRIV_CAPABILITY_NAMES'
enabled:

function                                             old     new   delta
.rodata                                           145969  146405    +436
setpriv_main                                         467     842    +375
capabilities                                           -     304    +304

And with 'FEATURE_SETPRIV_CAPABILITY_NAMES' disabled:

function                                             old     new   delta
setpriv_main                                         467     838    +371
.rodata                                           145969  146101    +132

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

setpriv: dump no-new-privs info

Introduce the ability to dump the state of the no-new-privs flag, which
states whethere it is allowed to grant new privileges.

function                                             old     new   delta
setpriv_main                                         419     467     +48
.rodata                                           145926  145969     +43

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

shell: sync redir/* tests

Note: hush-redir/redir_to_bad_fd.tests currently fails

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

ash: rename redir5.tests (hush has redir5.tests which is different)

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

hush: add a TODO about redir3.tests failure

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

hush: rename hush-redir/redir3.tests (ash has redir3.tests which id different)

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

hush: Print error messages on shift -1

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

typo fix

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

hush: implement negative start in the ${v: -n[:m]} idiom

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

hush: "adopt" ash var-utf8-length.tests

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

hush: "adopt" ash signal4.tests

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

shell: remove duplicate sigint1.tests (another copies are in signals/)

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

hush: add tickquote1.tests from ash testsuite

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

shell: syncronize ash and hush heredoc3.tests

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

shell: syncronize ash and hush heredoc1.tests

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

shell: syncronize ash_test/run-all and hush_test/run-all a bit

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

makedevs: code shrink

function                                             old     new   delta
makedevs_main                                       1071    1052     -19

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

makedevs: allow much longer filenames

function                                             old     new   delta
makedevs_main                                       1056    1071     +15

Patch by Kang-Che Sung <explorer09@gmail.com>

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

hush: correctly handle quoting in "case" even if !BASH_PATTERN_SUBST

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

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>

hush: fix quoted_punct.tests failure

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

ash: fix escaping of a few characters (broken by last commits)

Add a testcase which tests all ASCII punctuation escapes.
NB: hush is failing this test!

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

ash: tweak in comment

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

ash: note which versions of glibc exhibit "rho bug"

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

ash: fix matching of unicode greek letter rho (cf 81) and similar cases

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

setpriv: dump user and group info

setpriv from util-linux has an option to dump the current state
regarding privilege settings via '--dump'. It prints out information on
the real and effective user and group IDs, supplementary groups, the
no-new-privs flag, the capability sets as well as secure bits.

This patch is the start of supporting this mode. To make introduction of
the '--dump' easier to reason about, its introduction has been split
into multiple patches. This particular one introduces the ability to
print out user and group information of the current process.

function                                             old     new   delta
setpriv_main                                          89     322    +233
getresuid                                              -      41     +41
getresgid                                              -      41     +41
static.setpriv_longopts                               22      29      +7
packed_usage                                       31675   31669      -6
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 2/1 up/down: 322/-6)            Total: 316 bytes

Patch by Patrick Steinhardt <ps@pks.im>

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

libbb: new function bb_getgroups() - allocating wrapper around getgroups()

function                                             old     new   delta
bb_getgroups                                           -     111    +111
nexpr                                                843     757     -86
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/1 up/down: 111/-86)            Total: 25 bytes

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

setpriv: prepare option parsing logic for additional opts

The current option parsing logic of setpriv only supports the case where
we want to execute a sub-program and have at most one argument. Refactor
handling of options to solve these shortcomings to make it easy to
support 'setpriv --dump', which does not accept any additional
arguments, as well as the case where additional options are passed to
setpriv. This is done by handling 'argc' ourselves, throwing an error
when no program is specified, as well as introducing an enum for the
different option bitmasks.

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

setpriv: do not process remaining args

By default, the 'getopt32' call will continue parsing the command line
even after hitting a non-option string. But in setpriv, this should be
avoided, as all parameters following the initial non-option argument are
in fact arguments to the binary that is to be executed by setpriv.
Otherwise, calling e.g. 'busybox setpriv ls -l' would result in an error
due to the unknown parameter "-l".

Fix the issue by passing "+" as the first character in the options
string. This will cause 'getopt32' to stop processing after hitting the
first non-option.

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

tls: use capped SNI len everywhere

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

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>

Change BB_EXTRA_VERSION: now it needs to contain any spaces/parenthesis

Before this change, BB_EXTRA_VERSION of "" resulted in:

"BusyBox v1.28.0.git () multi-call binary"

message, after the fix it is:

"BusyBox v1.28.0.git multi-call binary"

While at it, eliminate BB_BT and BANNER single-use macros.

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

fixes for bugs found by make_single_applets.sh

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

msh: delete this applet

It's deprecated since 2009 and interferes with make_single_applets.sh tests.

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

Start 1.28.0 development cycle

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

Bump version to 1.27.0

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

scripts/randomtest: update things which can't be tested on uclibc

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

randomconfig fixes

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

ash: fix $HOME/.profile reading if !ASH_EXPAND_PRMT, take 2

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

ash: fix 'trap - 65'

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

udhcpc6: make -O OPT work

Patch is based on work by tiggerswelt.net.

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

modutils: delete unused replace_underscores()

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

udhcpc6: add comments about option 39, no code changes

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

ash: fix $HOME/.profile reading if !ASH_EXPAND_PRMT

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

pgrep: implement -a

function                                             old     new   delta
pgrep_main                                           640     726     +86

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

udhcpc6: add support for timezones

Basedon patch by Bernd Holzmüller <bernd.holzmueller@tiggerswelt.net>

function                                             old     new   delta
option_to_env                                        504     580     +76

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

pgrep: fix pgrep -flx "sleep 11" - saw "sleep 11" processes as "sleep 11 "

function                                             old     new   delta
pgrep_main                                           584     597     +13

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

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>

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>

unshare: fix help text; select LONG_OPTS instead depending on them

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

setpriv: new applet

Add a minimal 'setpriv' implementation supporting the NO_NEW_PRIVS bit.
Typical usage:

    $ busybox setpriv sudo uname
    Linux
    $ busybox setpriv --nnp sudo uname
    sudo: effective uid is not 0, is /usr/bin/sudo on a file system with
    the 'nosuid' option set or an NFS file system without root privileges?

function                                             old     new   delta
packed_usage                                       31580   31685    +105
setpriv_main                                           -      87     +87
prctl                                                  -      53     +53
static.setpriv_longopts                                -      22     +22
applet_names                                        2620    2628      +8
applet_main                                         1516    1520      +4
------------------------------------------------------------------------------
(add/remove: 5/0 grow/shrink: 3/0 up/down: 279/0)             Total: 279 bytes

Signed-off-by: Assaf Gordon <assafgordon@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

iproute: support for filtering by and printing of scope

This patch adds filtering by and printing of 'scope' to the
ip route command, taken from the upstream ip command.

x86_64:
function                                             old     new   delta
iproute_list_or_flush                               1548    1674    +126
print_route                                         2394    2469     +75
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 201/0)             Total: 201 bytes

mipsel:
iproute_list_or_flush                               1952    2096    +144
print_route                                         2580    2696    +116
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 2/0 up/down: 260/0)             Total: 260 bytes

Signed-off-by: André Draszik <git@andred.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

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>

ip rule: add suppress_{prefixlength,ifgroup} options

function                                             old     new   delta
iprule_modify                                        816     887     +71
print_rule                                           610     680     +70
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 141/0)             Total: 141 bytes

Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ash: fix incorrect path in describe_command

$ PATH=/extra/path:/usr/sbin:/usr/bin:/sbin:/bin \
> busybox sh -xc 'command -V ls; command -V ls; command -Vp ls; command -vp ls'
+ command -V ls
ls is /bin/ls
+ command -V ls
ls is a tracked alias for /bin/ls
+ command -Vp ls
ls is a tracked alias for (null)
+ command -vp ls
Segmentation fault

describe_command should respect `path' argument. Looking up in the hash table
may gives incorrect index in entry.u.index and finally causes incorrect output
or SIGSEGV.

function                                             old     new   delta
describe_command                                     386     313     -73

Signed-off-by: Youfu Zhang <zhangyoufu@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ls: fix support for long options when FEATURE_LS_COLOR is deselected

Declaration of ls_longopts and initialization of applet_long_options
were incorrectly guarded with ENABLE_FEATURE_LS_COLOR; that yielded a
"ls: NO_OPT: \xff" error message when long options were selected and
color support was not. This patch ensures long options are
initialized separately from color support.

Signed-off-by: Laurent Bercot <ska-dietlibc@skarnet.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

add/remove-shell: copy /etc/shells mode to new file

function                                             old     new   delta
add_remove_shell_main                                259     300     +41

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

ash,hush: fix SIGCHLD interrupting read builtin

function                                             old     new   delta
readcmd                                              169     217     +48
shell_builtin_read                                  1087    1097     +10
localcmd                                             366     364      -2
builtin_read                                         197     193      -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 58/-6)              Total: 52 bytes

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

sv: update to match version 2.1.2 of runit

Backport from upstream versions:
2.1.2
Sun, 10 Aug 2014 18:01:54 +0000
  * sv.c: properly format status command's output on failure cases.
  * sv.c: support optional LSB init script actions reload and
    try-restart.
  * sv.c: fix typo that may lead to wrong output from sv when reporting
    status of multiple service directories.

2.1.1
Sun, 04 Oct 2009 20:28:38 +0000
  * sv.c: on 'down', send runsv the 'down' command properly if not yet
    done (e.g. when taken up with 'once').

    [Remove previous workaround added to BusyBox version].

1.9.0
Mon, 05 May 2008 22:00:13 +0000
  * sv.c: service name is also relative to the current directory if it
    ends with a slash.

1.8.0
Fri, 21 Sep 2007 00:33:56 +0000
  * sv.c: fix race on check for down if pid is 0 and state is run or
    finish.

1.7.1
Sat, 04 Nov 2006 19:23:29 +0000
  * sv.c: properly wait for a service to be restarted on 'restart';
    support checks through -v for pause, cont, kill.

function                                             old     new   delta
sv                                                  1184    1280     +96
control                                              132     180     +48
status                                               118     139     +21
out                                                   64      85     +21
svstatus_print                                       334     344     +10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 196/0)             Total: 196 bytes

Signed-off-by: James Byrne <james.byrne at origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

runsv: update to match version 2.1.2 of runit

Backport from upstream versions:
2.1.0
Thu, 24 Sep 2009 22:49:33 +0000
  * runsv.c: exit with error if [log/]supervise/control exists, but is
    not a fifo.
    [Code abstracted into a separate function to make it more compact
    for BusyBox.]

1.9.0
Mon, 05 May 2008 22:00:13 +0000
  * runsv.c: create temporary new status files for log/supervise/
    actually in log/supervise/.

1.7.2
Tue, 21 Nov 2006 15:13:47 +0000
  * runsv.c: really don't act on commands in state finish; minor.

function                                             old     new   delta
open_control                                           -     135    +135
update_status                                        553     612     +59
custom                                               223     242     +19
ctrl                                                 426     422      -4
warn_cannot                                           21      10     -11
runsv_main                                          1786    1662    -124
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/3 up/down: 213/-139)           Total: 74 bytes

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

svlogd.c: support -ttt (dateTtime instead of date_time)

Backport from upstream version:
1.7.0
Sat, 07 Oct 2006 18:24:17 +0000
  * svlogd.c: new option -ttt: prefix log messages with sortable UTC
    timestamp YYYY-MM-DDTHH:MM:SS.xxxxx.

function                                             old     new   delta
svlogd_main                                         1429    1454     +25
packed_usage                                       31575   31580      +5

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

udhcpc: do not accept --background on NOMMU (same as -b)

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

udhcpc: fix "udhcpc -x hostname:<name> not working on nommu"

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

diff: fix -N and nonexistent files. Closes 7454

function                                             old     new   delta
diffreg                                             1253    1310     +57
diff_main                                           1329    1355     +26
create_J                                            1819    1821      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 85/0)               Total: 85 bytes

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

vi: survive if stdin is nonblocking. closes 9851

function                                             old     new   delta
readit                                                55      69     +14

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

time: inplement -f FMT

function                                             old     new   delta
time_main                                           1076    1134     +58
packed_usage                                       31577   31572      -5

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

time: implement -a, -o FILE

function                                             old     new   delta
time_main                                           1052    1076     +24
packed_usage                                       31571   31577      +6

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

time: document -p in usage

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

lsscsi: new applet

function                                             old     new   delta
lsscsi_main                                            -     326    +326
applet_names                                        2613    2620      +7
applet_main                                         1512    1516      +4
applet_install_loc                                   189     190      +1
packed_usage                                       31566   31560      -6
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/1 up/down: 338/-6)            Total: 332 bytes

Signed-off-by: Markus Gothe <nietzsche@lysator.liu.se>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Spelling fixes in comments, documentation, tests and examples

By klemens <ka7@github.com>

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

factor: fix stray semicolon

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

factor: support "no-argvs" usage

function                                             old     new   delta
factorize_numstr                                       -      72     +72
packed_usage                                       31562   31566      +4
factor_main                                          109     101      -8
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 76/-8)              Total: 68 bytes

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

libbb: fix "error: redefinition of 'is_tty_secure'"

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

factor: improve comments for sieving logic... also fix a typo

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

fix "loginutils/Config.in:319 error: Overlong line"

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

factor: improve comments for sieving logic

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

libbb: make check_password() also return CHECKPASS_PW_HAS_EMPTY_PASSWORD

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

su: FEATURE_SU_BLANK_PW_NEEDS_SECURE_TTY

When this feature is enabled, blank passwords are not accepted by su
unless the user is on a secure TTY defined in /etc/securetty. This
resembles the default PAM configuration of some Linux distros which
specify the nullok_secure option for pam_unix.so.

Based on patch by Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>

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

login: move check_securetty to libbb

Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

factor: tweak comments

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

ash: implement "exec -a ARGV0 CMD ARGV1..."

function                                             old     new   delta
execcmd                                               71     112     +41
shellexec                                            221     224      +3
evalcommand                                         1158    1161      +3
localcmd                                             364     366      +2
unaliascmd                                           163     154      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 49/-9)              Total: 40 bytes

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

ash: make shellexec capable of using separate argv[0] and filename to exec

function                                             old     new   delta
execcmd                                               71      78      +7
shellexec                                            221     224      +3
evalcommand                                         1158    1161      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 13/0)               Total: 13 bytes

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

Tweak GETOPT_RESET comment

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

libbb: GETOPT_RESET macro

Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

grep: FEATURE_GREP_CONTEXT should be available for "fgrep only" too

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

catv: convert this bbox-specific applet into "cat -v"

function                                             old     new   delta
cat_main                                             150     320    +170
packed_usage                                       31511   31552     +41
applet_install_loc                                   190     189      -1
applet_main                                         1516    1512      -4
applet_names                                        2618    2613      -5
catv_main                                            227       -    -227
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 2/3 up/down: 211/-237)          Total: -26 bytes

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

fix errors found with make_single_applets.sh

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

Sort more misplaced applets into coreutils or util-linux

No code changes

Surprisingly, nice and renice are coming from different packages :)

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

Sort some miscutils/ applets into coreutils or util-linux

No code changes

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

partprobe: new applet

function                                             old     new   delta
partprobe_main                                         -      79     +79
packed_usage                                       31485   31511     +26
applet_names                                        2608    2618     +10
applet_main                                         1512    1516      +4
applet_install_loc                                   189     190      +1
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 4/0 up/down: 120/0)             Total: 120 bytes

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

w: new applet, alias to "who -H"

function                                             old     new   delta
who_main                                             451     463     +12
packed_usage                                       31477   31485      +8
applet_main                                         1508    1512      +4
applet_names                                        2606    2608      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 26/0)               Total: 26 bytes

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

fallocate: new applet

NAME
       fallocate - preallocate or deallocate space to a file
SYNOPSIS
       fallocate [-c|-p|-z] [-o offset] -l length [-n] filename
       fallocate -d [-o offset] [-l length] filename
DESCRIPTION
       fallocate  is  used  to manipulate the allocated disk space for a file,
       either to deallocate or preallocate it.  For filesystems which  support
       the  fallocate system call, preallocation is done quickly by allocating
       blocks and marking them as uninitialized, requiring no IO to  the  data
       blocks.   This  is  much faster than creating a file by filling it with
       zeroes.

function                                             old     new   delta
fallocate_main                                         -     179    +179
applet_names                                        2597    2606      +9
applet_main                                         1504    1508      +4
applet_suid                                           94      95      +1
applet_install_loc                                   188     189      +1

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

fsfreeze: new applet

NAME
       fsfreeze - suspend access to a filesystem (Ext3/4, ReiserFS, JFS, XFS)
SYNOPSIS
       fsfreeze --freeze|--unfreeze mountpoint
DESCRIPTION
       fsfreeze suspends or resumes access to a filesystem.
       fsfreeze halts any new access to the filesystem and creates a stable
       image on disk.
AVAILABILITY
       The fsfreeze command is part of the util-linux 2.28

function                                             old     new   delta
fsfreeze_main                                          -      81     +81
applet_names                                        2597    2606      +9
applet_main                                         1504    1508      +4
applet_suid                                           94      95      +1
applet_install_loc                                   188     189      +1

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

factor: remove debug code

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

libbb: move isqrt from factor, use it in diff too

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

factor: much faster, and very slightly larger isqrt()

function                                             old     new   delta
isqrt_odd                                             70      88     +18

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

factor: don't be too clever in isqrt - be small instead

function                                             old     new   delta
isqrt_odd                                            111      70     -41

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

factor: add code to test isqrt() correctness

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

factor: 25% faster sieving

function                                             old     new   delta
factorize                                            287     260     -27

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