hush: make set/unset builtins optional

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

hush: make read and trap builtins optional

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

hush: kill builtin and kill %jobspec support

Also made it and printf, type and wait builtins optional.

function                                             old     new   delta
builtin_kill                                           -     323    +323
bltins1                                              336     348     +12
builtin_type                                         114     116      +2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 337/0)             Total: 337 bytes

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

hush: support %%, %+ and % jobspec (meaning "current job")

function                                             old     new   delta
parse_jobspec                                         83     133     +50
builtin_wait                                         278     283      +5

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

httpd: fix address family for reverse proxy client socket

When httpd proxies a request to another server, it first creates
an AF_INET socket, then resolves the server name to a sockaddr,
then connects to it. This fails if the server name resolves to
an IPv6 address.

This patch ensures that the socket is created with the correct
address family (AF_INET6 if the server resolves to an IPv6 address
and AF_INET otherwise).

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

build system: no longer prompt for PLATFORM_LINUX option

With the new "select PLATFORM_LINUX" mechanism
(commit e3b1a1fd28558f7a1b3c0ec33313bedb675be8a1), the PLATFORM_LINUX
option alone no longer has any purpose of changing program behavior or
affecting compiled code. So there is no longer need to prompt user of
this config question.

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

bunzip2: fix code bloat caused by zcat's seamless magic

This example single-applet configuration would trigger the bloat:

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

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

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

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

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ash: fix "kill %1" not working if CONFIG_ASH is disabled

ix ash "kill %1" not working if CONFIG_ASH is disabled but
ash is launched by 'sh' or 'bash' name

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

unzip: do not use CDF.extra_len, read local file header. Closes 9536

While at it, shorten many field and variable names.

function                                             old     new   delta
unzip_main                                          2334    2376     +42

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

ash: fix open fds leaking in redirects. Closes 9561

commit e19923f6652a638ac39c84012e97f52cf5a7568e deleted clearredir()
call in shellexec():

ash: [REDIR] Remove redundant CLOEXEC calls
Upstream commit:

Now that we're marking file descriptors as CLOEXEC in savefd, we no longer
need to close them on exec or in setinputfd.

but it missed one place where we don't set CLOEXEC. Fixing this.

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

Automatically disable FEATURE_COMPRESS_USAGE for small builds.

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

ash: explicltly group ash options

This would makes all ash options indented inside "ash" in menuconfig.
It appears that menuconfig has a limit at tracking multiple dependency
lines like this (it looks like a "diamond problem" but I'm not sure if
it is):

               ---ASH <----------
              /                  \       ASH_OPTIMIZE_FOR_SIZE
    !NOMMU <-*----SH_IS_ASH <----[OR] <--ASH_INTERNAL_GLOB
              \                  /       ASH_RANDOM_SUPPORT
               ---BASH_IS_ASH <--        [...]

The kconfig-language document [1] states that:

> If a menu entry somehow depends on the previous entry, it can be
> made a submenu of it. First, the previous (parent) symbol must be
> part of the dependency list and then one of these two conditions
> must be true:
> - the child entry must become invisible, if the parent is set to 'n'

    [BusyBox ash used to satisfy this, but no longer does]

> - the child entry must only be visible, if the parent is visible

    [BusyBox ash configs actually satisfy this, but because of
     "diamond" above this might not be easily detected]

So I found out a direct workaround: by making ash options explicitly
depend on !NOMMU, we can tell menuconfig that rule 2 above is satisfied
without any more tracking.

               ---------------------
              /                     \
    !NOMMU <-*-----ASH <--------     \
              \                 \     \        ASH_OPTIMIZE_FOR_SIZE
               *---SH_IS_ASH <---[OR]-[AND] <--ASH_INTERNAL_GLOB
                \                /             ASH_RANDOM_SUPPORT
                 --BASH_IS_ASH <-              [...]

So all ash options would now be indented under "ash".

[1] "Documentation/kbuild/kconfig-language.txt" in Linux kernel source

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ntpd: improve postponed hostname resolution

Run the namelookup from the main loop so a misspelled first ntp server
name does not block everything forever.

This fixes the following situation which would block forever:
  $ sudo ./busybox ntpd -dn -p foobar  -p pool.ntp.org
  ntpd: bad address 'foobar'
  ntpd: bad address 'foobar'
  ntpd: bad address 'foobar'
  ...

New behavior:
  ntpd: bad address 'foobar'
  ntpd: sending query to 137.190.2.4
  ntpd: reply from 137.190.2.4: offset:-1.009775 delay:0.175550 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x01
  ntpd: sending query to 137.190.2.4
  ntpd: reply from 137.190.2.4: offset:-1.009605 delay:0.175461 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x03
  ntpd: sending query to 137.190.2.4
  ntpd: reply from 137.190.2.4: offset:-1.005327 delay:0.167027 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x07
  ntpd: sending query to 137.190.2.4
  ntpd: bad address 'foobar'
  ntpd: reply from 137.190.2.4: offset:-1.046349 delay:0.248705 status:0x24 strat:1 refid:0x00535047 rootdelay:0.000000 reach:0x0f

This patch is based on Kaarle Ritvanens work.
http://lists.busybox.net/pipermail/busybox/2016-May/084197.html

function                                             old     new   delta
ntpd_main                                           1061    1079     +18
ntp_init                                             556     560      +4
resolve_peer_hostname                                 81      75      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 22/-6)              Total: 16 bytes

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

unzip: remove now-pointless lseek which returns current position

archival/unzip.c: In function 'read_next_cdf':
archival/unzip.c:271:8: warning: variable 'org' set but
                                 not used [-Wunused-but-set-variable]
  off_t org;
        ^~~

Signed-off-by: Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

typo fix in config help text

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

unzip: properly use CDF to find compressed files. Closes 9536

function                                             old     new   delta
unzip_main                                          2437    2350     -87

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

modutils: remove special handling of uClibc

Commit 3a45b87ac36f (modutils: support finit_module syscall) introduced
macro finit_module. But it is not defined for uClibc.

The compilation for busybox fails for MIPS with:
With uClibc, we get following build errors:

  modutils/lib.a(modutils.o): In function `bb_init_module':
  modutils.c:(.text.bb_init_module+0x94): undefined reference to `finit_module'
  modutils.c:(.text.bb_init_module+0xa0): undefined reference to `finit_module'

We can just use syscall() without any need for the
uClibc wrappers.

Newer versions of uClibc-ng (>1.0.20) will remove the
module syscall wrappers.

Found via Buildroot autobuilders:
http://autobuild.buildroot.net/results/556/55655daef23788fb3967f801ec8b79e9bed7122b/build-end.log

function                                             old     new   delta
bb_delete_module                                      26      32      +6
bb_init_module                                        90      95      +5
delete_module                                         37       -     -37
init_module                                           53       -     -53
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 2/0 up/down: 11/-90)            Total: -79 bytes

Reported-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

shell: clarify help text of CONFIG_{SH,BASH}_IS_* options

Mention the behavior if user selects CONFIG_SH_IS_ASH but not
CONFIG_ASH. We will be explicit that invocations like "busybox ash"
will not work for such configuration.

Also clarify help text of CONFIG_BASH_IS_* that bash compatibility in
ash is not complete. (It shouldn't be anyway - ash can't support every
bash quirk out there.)

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

udhcp: tweak config order and menu item names

All other applets are listed simply by their name, no reason why
dumpleases doesn't do that.

Group all udhcpd feature options directly after it.

Put "NOT READY" into udhcpc6 item (some users actually tried to use it,
and complained).

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

Fix dependency for IFUPDOWN_UDHCPC_CMD_OPTIONS

Commit a8c696bf09d8151323f6e99348c4bc8989f829c8 makes ifup and ifdown
individually selectable, but forgets to update the dependency to
IFUPDOWN_UDHCPC_CMD_OPTIONS, so it is not selectable anymore.

This patch fixes the dependency by checking for IFUP or IFDOWN, instead
of the obsolete IFUPDOWN.

Also, it drops dependency on UDHCPC: udhcpc on the target system
does not have to come from the _same_ binary.

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

README_distro_proposal.txt: typo fixes

Signed-off-by: Tito Ragusa <farmatito@tiscali.it>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

appletlib: avoid warning on unused function ingroup

libbb/appletlib.c:558:12: warning: 'ingroup' defined but
                                   not used [-Wunused-function]
 static int ingroup(uid_t u, gid_t g)
            ^~~~~~~

That function is used only if FEATURE_SUID_CONFIG is also enabled.

Signed-off-by: Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

hush: correct exitcode for unterminated ')' - exitcode2.tests testcase

function                                             old     new   delta
parse_stream                                        2595    2609     +14

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

ash: fix error code regression

The commit 'ash,hush: set exit code 127 in "sh /does/not/exist" case'
only partly implemented the dash commit '[ERROR] Allow the originator
of EXERROR to set the exit status'.  This resulted in incorrect error
codes for a syntax error:

   $ )
   $ echo $?
   0

or a redirection error for a special builtin:

   $ rm -f xxx
   $ eval cat <xxx
   $ echo $?
   0

Signed-off-by: Ron Yorston <rmy@pobox.com>
Reported-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

qemu_multiarch_testing: small improvements

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

tcpudp: define SO_ORIGINAL_DST directly, not via include

musl does not like including linux/netfilter_ipv4.h
(enum / #define collision in two headers, resulting in "3 = 3"
type situation in enum definition).

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

depmod: don't build it if MODPROBE_SMALL=y

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

Update to examples/var_service/README_distro_proposal.txt

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

make_single_applets.sh: SH_IS_HUSH needs special handling too

Well, in fact it works (make oldconfig throws only a warning when it sees
both SH_IS_HUSH=y and SH_IS_NONE=y), but let's be nice.

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

Make it possible to select "sh" and "bash" aliases without selecting ash or hush

The same can be done for msh, but we are probably better off just deleting it
in a next versio or two.

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

Make RMMOD=y by default

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

Make INSMOD=y by default

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

Remove FEATURE_IFUPDOWN_IP_BUILTIN and FEATURE_IFUPDOWN_IFCONFIG_BUILTIN

They merely enable ip or ifconfig/route. There is already a way to do this
on the same menuconfig page.

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

modprobe-small: make applets individually selectable

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

Make DPKG=y and DPKG_DEB=y by default

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

Selinux complains about deprecated selinux/flask.h, stop including it

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

Make FEATURE_USERNAME_COMPLETION=y by default

This matches bash behavior on Fedora

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

make_single_applets.sh: a tool to check single-applet builds

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

fix breakage found by mass one-applet builds

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

ip: make ip aliases individually selectable

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

Make POST upload example script easier to use

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

shell: move "config" blocks above their use in coditional includes

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

Update information on building httpd and wget helpers

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

Tweak some config defaults; fix MODPROBE_SMALL ordering in "make config"

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

ash: clarify uclibc glob() bug in comment

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

ash: error out if ASH_INTERNAL_GLOB is not selected on uClibc

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

Start 1.27.0 development cycle

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

Bump version to 1.26.0

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

libiproute: handle table ids larger than 255

Linux kernel, starting from 2.6.19 allows ip table ids to have 32-bit values.
In order to preserve compatibility, the old 8-bit field: rtm_table is still
in use when table id is lower than 256.

Add support for the 32-bit table id (RTA_TABLE attribute) in:
- ip route print
- ip route modify
- ip rule print
- ip rule modify

Add printing of table ids to ip route.

Changes are compatible with the mainline iproute2 utilities.

These changes are required for compatibility with ConnMan, which by default
uses table ids greater than 255.

function                                             old     new   delta
print_route                                         1588    1637     +49
do_iproute                                          2187    2222     +35
do_iprule                                            955     987     +32
print_rule                                           617     630     +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 129/0)             Total: 129 bytes

Signed-off-by: Lukasz Nowak <lnowak@tycoint.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

df: implement -B n<suff> and -B <suff> formats of -B option

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

randomconfig fixes

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

ash: fix signed char expansion bug

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

shell: suppress "unused var/func" warnings on some configs

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

suppress glibc "use sysmacros.h for major" warning

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

randomconfig fixes

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

randomconfig fixes

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

randomconfig fixes

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

randomconfig fixes

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

selinux: drop deprecated headers

The selinux guys want you to get class values at runtime by converting
textual names into constants.  Drop the deprecated headers and switch
to the new format.

This API has been around for years, so there shouldn't be an issue
with backwards compatibility.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

setfiles: fix build failure after common_bufsiz change

Commit 47cfbf32fd66563f8c4e09ad6cced6abfbe2fad5 ("*: add most of the
required setup_common_bufsiz() calls") switched this tool over to use
the common_bufsiz logic but missed including the header leading to a
build failure when enabled:
selinux/setfiles.c:80:30: error: 'bb_common_bufsiz1' undeclared (first use in this function)

URL: https://bugs.gentoo.org/600106
Reported-by: Jonas Jelten <jj@stusta.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

mdev.conf: rename hw_random to hwrng

The kernel broke the name years ago, but didn't notice until it was much
too late.  Rename the node to match expectations of userland software,
and what the kernel itself documents in its Kconfig help:
This provides a device that's usually called /dev/hwrng, ...

URL: https://marc.info/?l=linux-crypto-vger&m=144249767024990&w=2
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

randomconfig fixes

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

svc: new applet (daemontools-compatible version of "sv")

function                                             old     new   delta
sv                                                     -    1199   +1199
svc_main                                               -     145    +145
packed_usage                                       30255   30364    +109
applet_names                                        2437    2441      +4
applet_main                                         1420    1424      +4
find_applet_by_name                                  125     126      +1
sv_main                                             1201       9   -1192
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 4/1 up/down: 1462/-1192)        Total: 270 bytes

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

fix musl problem with dirname, now for all users of bb_make_directory()

function                                             old     new   delta
bb_make_directory                                    412     419      +7
install_main                                         793     769     -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-24)             Total: -17 bytes

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

README_distro_proposal.txt: writeup about runit adoption

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

top: fix help text: with !TERMIOS, no keys are affected top output

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

install: fix musl problem with dirname

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

Do not print useless empty line after list of applets

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

Code style fixes, no code changes

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

lineedit: simplify code a bit

function                                             old     new   delta
lineedit_read_key                                    155     162      +7
put_prompt                                            51      46      -5
read_line_input                                     3722    3715      -7
cmdedit_setwidth                                      81      50     -31
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 7/-43)             Total: -36 bytes

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

makedevs: make special node creation idempotent

When makedevs is called for a second time with the same device file,
it fails because the files already exist and mknod() gives -EEXIST.

Ignore EEXIST errors.

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

lineedit: fix two bugs in SIGWINCH signal handling

(1) restore entire sigaction, not only signal handler function
(2) do not use stdio when not sure WINCH did not interrupt a printf() or such.

function                                             old     new   delta
cmdedit_setwidth                                       -      81     +81
read_line_input                                     3682    3722     +40
lineedit_read_key                                    138     155     +17
put_prompt                                            55      51      -4
win_changed                                           93      47     -46
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/2 up/down: 138/-50)            Total: 88 bytes

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

fdisk_gpt: simplify GPT partition name printing

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

fdisk: sanitize partition name printing; drop "Code" column; get rid of one static var

function                                             old     new   delta
list_table                                          2335    2373     +38
fill_bounds                                          131     128      -3
part_array_len                                         4       -      -4
get_boot                                            1584    1574     -10
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 38/-17)             Total: 21 bytes

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

dpkg-deb: shorten code, improve help text

function                                             old     new   delta
packed_usage                                       30261   30236     -25
dpkg_deb_main                                        437     401     -36
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-61)             Total: -61 bytes

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

dpkg-deb: remove unused FEATURE_DPKG_DEB_EXTRACT_ONLY config option

Its usage in C code was removed in 2004.

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

find: fix handling of trailing slashes in -name PATTERN comparisons

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

ash,hush: make ^C in interactive mode visually much closer to bash behavior

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

Move FEATURE_BUFFERS_USE_foo options to library tuning

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

Move locale, unicode, and "use sendfile?" options to library tuning

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

Collapse three levers of menuconfig to two levels.

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

ash,hush: ^C from command line should set $? to 128+SIGINT

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

lineedit: fix handling of repeating Alt-b, Alt-f, Alt-d, Alt-Backspace

These key combinations should repeat correctly when the keys are
pressed and held.

Before this change, they do this erratically - many repeats are "eaten"
because they are treated as unrecognized ESC seqs:
ESC 0x7f is treated by Alt+baskspace, but ESC 0x7f ESC 0x7f ESC 0x7f
is unrecognized.

Escape sequences corresponding to these key combinations are moved from
read_line_input to lineedit_read_key.

Also, these key sequences are now enabled regardless of whether
FEATURE_EDITING_VI is set, since Vim does not actually support these key
combinations, but they are present in readline library.

function                                             old     new   delta
static.esccmds                                        93     103     +10
read_line_input                                     3737    3687     -50

Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

patch: fix matching failure

Fix matching failure when plist is advanced while checking for buffered
lines - the lines in the hunk that are about to be added should be
skipped when checking for matching context.

Also add a valid test case that fails with current busybox and is fixed
by the change.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

patch: fix debug log failure

If we reach the end of plist it means the input has still data while we
are expecting EOF. Fix the log to avoid a crash.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Remove outdated comments

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

Convert all udhcp applets to "new style" applet definitions

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

Convert all selinux/* applets to "new style" applet definitions

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

test: make [ and [[ forms individually selectable

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

Remove remnants of disabled "length" applet

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

Make dos2unix/unix2dos independently selectable

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

Convert all coreutils/* applets to "new style" applet definitions

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

Make "hd" independently selectable

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

Convert all util-linux/* applets to "new style" applet definitions

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

Remove trailing empty lines

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

Convert all console-tools/* applets to "new style" applet definitions

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

Convert all mailutils/* applets to "new style" applet definitions

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

tc: consolidate its disabled bits

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

Make ping6 and traceroute6 selectable independently from ping/traceroute

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

ipneigh: add this shortcur similar to other "ip <CMD>" shortcuts

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