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>

Rename FEATURE_FTP_WRITE and FEATURE_FTP_AUTHENTICATION to *_FTPD_*

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

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

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

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

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

Make killall and killall5 selecatable independent from kill

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

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

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

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

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

Split miscutils/Config.src items into miscutils/*.c files

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

httpd: explain why we use sprintf and why it should be fine

While at it, fix a pathological case where it is not fine:
-r REALM with some 8-kbyte long REALM would overflow the buffer.

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

Fix allnoconfig warnings

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

applets.h.sh: a script to check applet names against config options

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

Make mkfs.vfat and mkdosfs individually selectable

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

Make mke2fs and mkfs.ext2 individually selectable

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

Make bzcat, lzcat, xzcat, zcat, lzopcat, unlzop individually selectable

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

Make ifup and ifdown individually selectable.

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

Make swapon and swapoff individually selectable.

For example, without swapoff, code shrinks by 277 bytes.

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

Make grep/egrep/fgrep independently selectable

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

Make halt/poweroff/reboot independently selectable

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

Make setarch/linux32/linux64 independently selectable

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

dnsdomainname: split it from "hostname", make it independently selectable

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

tar: handle pax-encoded utf8 filenames and link names. Closes 9406

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

hush: make getch/peek functions directly called

Indirect calls are more difficult to predict.
Unfortunately, on x64 direct call is 5 bytes while indirect "call (reg+ofs)"
is 3 bytes:

function                                             old     new   delta
i_getch                                                -      82     +82
i_peek                                                 -      63     +63
parse_stream                                        2531    2579     +48
parse_dollar                                         771     797     +26
parse_redirect                                       296     321     +25
add_till_closing_bracket                             408     420     +12
encode_string                                        256     265      +9
i_peek_and_eat_bkslash_nl                             93      99      +6
add_till_backquote                                   110     114      +4
parse_and_run_stream                                 139     141      +2
expand_vars_to_list                                 1143    1144      +1
static_peek                                            6       -      -6
setup_string_in_str                                   39      18     -21
setup_file_in_str                                     40      19     -21
static_get                                            27       -     -27
file_peek                                             52       -     -52
file_get                                              65       -     -65
------------------------------------------------------------------------------
(add/remove: 2/4 grow/shrink: 9/2 up/down: 278/-192)           Total: 86 bytes

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

hush: renumber PIPE_foo, make PIPE_SEQ = 0

PIPE_SEQ is used most often, having it zero makes code smaller:

function                                             old     new   delta
done_word                                            719     707     -12
parse_stream                                        2546    2531     -15

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

hush: small optimization in run_list

I thought gcc can detect this itself. It doesn't.

function                                             old     new   delta
run_list                                            1030    1021      -9

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

hush: deindent large block of code, no code changes

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

hush: simplify insert_bg_jobs

function                                             old     new   delta
insert_bg_job                                        366     281     -85

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

hush: make "wait %1" less likely to play with signal mask

Was playing with "sleep 3 | exit 3 & wait %1" and noticed that often
SIGCHLD arrives even before I get to signal masking. Can avoid it in this
case.

function                                             old     new   delta
wait_for_child_or_signal                             228     265     +37

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

hush: rework "wait %jobspec" to work in non-interactive shells too

Also add tests. wait5.tests so far fails (but works for ash and dash).

function                                             old     new   delta
builtin_wait                                         305     283     -22

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

hush: "wait $!; echo $?" should return 127 if $! already exited

It would be nice to provide bash-like "remember las exitcode"
thingy, but it's a bit complex. For now, match ash and dash.

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

hush: implement "wait %jobspec"

function                                             old     new   delta
parse_jobspec                                          -      83     +83
job_exited_or_stopped                                  -      79     +79
builtin_wait                                         236     302     +66
wait_for_child_or_signal                             199     228     +29
checkjobs                                            142     158     +16
builtin_jobs                                          59      68      +9
process_wait_result                                  453     408     -45
builtin_fg_bg                                        272     203     -69
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 4/2 up/down: 282/-114)          Total: 168 bytes

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

hush: factor out %jobspec parsing

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

hush: comment fix

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

hush: do not allow sh -c '{ echo boo }'

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

cpio: add ownership (-R) test cases

Add ownership (-R) test cases.

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

hush: case logic for setting $? was still wrong

Resetting to 0 should happen in "esac". Matched branch must
still see previous $?.

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

hush: non-matching "case" statement sets $? to 0

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

hush: allow { cmd } to not be terminated by semicolon in some cases

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

ash: fix "duplicate local" code (forgot to re-enable interrupts)

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

comment and readme updates

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

su: expand help; simplify passing of -c CMD to run_shell()

Also, added a comment about bug 9401 (TIOCSTI input injection).

function                                             old     new   delta
packed_usage                                       30909   30932     +23
su_main                                              470     487     +17
sulogin_main                                         260     258      -2
run_applet_and_exit                                  681     678      -3
run_shell                                            166     126     -40

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

loadfont: 32k size limit is not enough

Since our "read to malloced buf" routines only gradually grow
allocations, let's be generous here and allow 128k.

Reported by Alex Henrie <alexhenrie24@gmail.com>

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

ash: while (!got_sig) pause() is not reliable, use sigsuspend()

dash was doing it for a reason. Unfortunately, it had no comment why...
now I know.

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

man: remove -Tascii from nroff invocation

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

man: make width selection more thorough; explain how to override it

Fedora's "man CMD >file" still uses terminal width, not 80 (but disables formatting),
this change mimics that.

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

man: allow nroff and tbl commands be overridden; unmangle writing to files

Parse this in config files:
 DEFINE col ...
 DEFINE tbl ...
 DEFINE nroff ...
Add width options to nroff command line.
Use "tbl", not "gtbl", as default tbl command.
Export GROFF_NO_SGR=1 and use "col -b -p -x" instead of pager when writing to file.

function                                             old     new   delta
man_main                                             735     863    +128
if_redefined                                           -      64     +64
show_manpage                                         199     169     -30
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 192/-30)           Total: 162 bytes

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

ash: if using libc glob(), skip it if no metachars are in word

This saves making tons of pointless stat() calls

function                                             old     new   delta
expandarg                                            888     921     +33

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

ash: fix bit-rotten debug infrastructure

DEBUG = 2 output was a bit messed up

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

ash: make popfile() anfter popallfiles() safe

In this example:

ash -c 'readonly x; echo $(command eval x=2)'

evalstring() is called after forkchild(), which calls popallfiles().
On exception, evalstring() will popfile().

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

hush: fix "(sleep 1; exit 3) & sleep 2; echo $?; wait $!; echo $?"

"wait $!" may be just a bit too late: backgrounded $! is gone.
Do not bomb out in this case.

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