depmod.pl: updates and fixes galore

The helper script needs updating to match latest busybox modprobe behavior
in that all dependencies need to be listed, not just the immediate ones.
Along the way, fix symbol prefixed ports, optimize the output, and add
some more depmod compatible options.

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

hush: more fixes from trunk; bump version to 1.14.1

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

post-1.14.0 fixes

hush significantly updated.
fixes for acpid, awk, depmod, dhcp, gzip, mdev, modprobe, sysctl.
libbb fixes.

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

website: another tweak

website: yet another small tweak

website: another tiny tweak

website: textual fixes in 1.14.0 announcement text

website: announce 1.14.0 and 1.13.4
Makefile: bump version to 1.14.0

mdev: safer handling of $SUBSYSTEM in mdev -s

pointless whitespace/comment fixes, no code changes

randomconfig fixes

website: update ActionTec URL to opensource.actiontec.com/

website: fix obsolete
 "svn co svn://busybox.net/branches/busybox_1_12_stable"
 example

*: unify concurrent-safe update of /etc/{passwd,group,[g]shadow}
 by Tito (farmatito AT tiscali.it)

function                                             old     new   delta
update_passwd                                        743    1171    +428
bb_perror_nomsg                                        -       9      +9
find_main                                            436     444      +8
passwd_main                                         1023    1027      +4
nameval                                              202     206      +4
chpasswd_main                                        315     319      +4
bb__parsespent                                       119     117      -2
adduser_main                                         654     650      -4
addgroup_main                                        345     341      -4
sv_main                                             1228    1222      -6
deluser_main                                         173     160     -13
bb_internal_putpwent                                  69       -     -69
add_user_to_group                                    231       -    -231
del_line_matching                                    460      31    -429
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 5/6 up/down: 457/-758)         Total: -301 bytes

mdev: add support for - "dont stop here" char

function                                             old     new   delta
make_device                                         1340    1362     +22
packed_usage                                       26291   26299      +8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 30/0)               Total: 30 bytes

mdev: provide $SUBSYSTEM (by Vladimir)

function                                             old     new   delta
make_device                                         1265    1340     +75
dirAction                                             14      60     +46
mdev_main                                            676     695     +19
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 140/0)             Total: 140 bytes

move llist_find_str from modutils to libbb

modutils: remove redundant sanitization

hush: make function support configurable

mdev: fix a bug where \t is not treated as delimiter after [>|=PATH]

mdev: make usage text more useful

function                                             old     new   delta
packed_usage                                       26235   26291     +56

dhcprelay: fix usage text. Simplify and make code more readable.
 Add TODOs.

rmmod: fix bug 263
"modutils/rmmod can't remove modules with dash in name on 2.4 kernels"

function                                             old     new   delta
rmmod_main                                           187     220     +33

mdev: ignore events with "$SUBSYSTEM" == "firmware" && "$ACTION" == "remove"

function                                             old     new   delta
mdev_main                                            665     676     +11

website: add dream-multimedia-tv.de/ to list of products
using bbox

hush: pass functions to child shells on NOMMU

function                                             old     new   delta
new_function                                           -     123    +123
hush_main                                           1198    1262     +64
re_execute_shell                                     341     387     +46
run_pipe                                            1872    1790     -82
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 233/-82)           Total: 151 bytes

dnsd: stop using oversized buffer. trim comment.

halt/reboot/powerdown: accept and ignore -i

modutils: small optimization

function                                             old     new   delta
bb_init_module_24                                   4570    4565      -5

mdev: do not complain if /sys/block doesn't exist

awk: fix long field separators case. By Ian Wienand (ianw AT vmware.com)

getty: fix handling of speed 0;
 stop using non-portable way of setting speeds.

function                                             old     new   delta
cfsetispeed                                            -      76     +76
cfsetospeed                                            -      57     +57
cfgetispeed                                            -      20     +20

mount: users report that CIFS support is breaking things,
 mostly remove it.

dnsd: removed highly questionable setting of signals to SIG_IGN

dnsd: fix a number of bugs. Ideas by Ming-Ching Tiew (mctiew AT yahoo.com)

function                                             old     new   delta
undot                                                  -      42     +42
dnsd_main                                           1394    1213    -181
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 42/-181)          Total: -139 bytes

ash: fix warning in debug build

hush: remove functions from TODOs

hush: improve debugging output

hush: fix "while...do f1() {a;}; f1; f1 {b;}; f1; done" bug

hush: tweak tests

hush: add function tests

hush: pass $n to functions

function                                             old     new   delta
run_pipe                                            1183    1325    +142
run_list                                            1219    1220      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 143/0)             Total: 143 bytes

hush: fix a few thinkos in function support; make it work on NOMMU;
 functions in child shells now even have $n passed to them! :)
 (in main shell it still doesn't work)

hush: first stab at function support. argv passing is not coded yet.
 Only very rudimentary testing was done.
 With function support off, code growth is zero, with it on:

function                                             old     new   delta
run_list                                            2158    2339    +181
parse_stream                                        1929    2044    +115
find_builtin                                          24      67     +43
find_function                                          -      36     +36
file_get                                             244     264     +20
pseudo_exec_argv                                     145     160     +15
free_strings                                           -       7      +7
free_pipe                                            183     181      -2
done_word                                            735     728      -7
expand_variables                                    2227    2204     -23
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 5/3 up/down: 417/-32)           Total: 385 bytes

hush: reinstate accidentally reverted comment fix

hush: fix some TODOs. TODO in export builting: +250 bytes.
 simplify unexpected EOF handling.

function                                             old     new   delta
builtin_export                                       117     374    +257
o_reset_to_empty_unquoted                              -      21     +21
parse_stream                                        1926    1929      +3
syntax_error_unterm_ch                                31      32      +1
handle_dollar                                        644     641      -3
parse_stream_dquoted                                 307     298      -9
add_till_backquote                                   106      97      -9
add_till_closing_paren                               303     286     -17
o_reset                                               21       -     -21
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 3/4 up/down: 282/-59)           Total: 223 bytes

hush: tighten up "for" variable name check.
 Add TODOs.
 Disable redir4.right part where we differ from bash.
 It is not a bug per standards.
 Add a few tests, one is in hush-bugs section:
 and_or_and_backgrounding.right. It will likely bite users
 in real world usage.

hush: fix typo in comment

fix segfault on syntax error code path

hush: readability improvements.
 fix some more obscure bugs.
 a new redir4.tests is known to fail.

add test cases for parameter substitution with unset/null strings

dont crash if the variable we do substitution on is not set

hush: shrink and make more versatile error-reporting machinery

function                                             old     new   delta
syntax_error_unterm_ch                                 -      31     +31
syntax_error_unterm_str                                -      14     +14
parse_stream                                        2356    2361      +5
syntax_error_at                                       12      14      +2
syntax_error                                          25      27      +2
syntax_error_unterminated                             28       -     -28
expand_variables                                    2063    2031     -32
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/1 up/down: 54/-60)             Total: -6 bytes
   text    data     bss     dec     hex filename
  67278     197    3184   70659   11403 busybox_old
  67228     197    3184   70609   113d1 busybox_unstripped

hush: deal with some easier TODOs

function                                             old     new   delta
is_well_formed_var_name                                -      87     +87
builtin_read                                          49      86     +37
die_if_script                                          -      31     +31
syntax_error_unterminated                              -      28     +28
syntax_error                                          26      51     +25
done_word                                            768     788     +20
syntax_error_at                                        -      12     +12
parse_stream_dquoted                                 320     328      +8
expand_variables                                    2064    2063      -1
run_list                                            1225    1220      -5
add_till_closing_paren                               308     303      -5
add_till_backquote                                   111     106      -5
handle_dollar                                        812     803      -9
parse_stream                                        2378    2356     -22
parse_redirect                                       408     372     -36
maybe_die                                             44       -     -44
is_assignment                                        215     134     -81
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 4/8 up/down: 248/-208)           Total: 40 bytes

hush: plug the leak of expanded heredoc

hush: fix EXIT trap recursion case; check redirection failures

function                                             old     new   delta
run_pipe                                            1299    1328     +29
hush_exit                                             90     102     +12
hush_main                                           1172    1179      +7
run_list                                            1226    1225      -1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 48/-1)              Total: 47 bytes

*: make "pragma GCC visibility push(hidden)" less ugly

skip some tests when fancy echo support is turned off

we arent testing `echo -n` here so use printf instead

source the .config so tests can signal they need to be skipped due to feature disable

patch by Stuart Hughes <seh@zee2.com> and Guenter <lists@gknw.net> to make "0" a special baud rate for getty where it uses this as "leave baud rate unchanged"

hush: typo in comment

hush: fix thinko in re_execute_shell; pass even less junk to heredoc helper

function                                             old     new   delta
re_execute_shell                                     284     314     +30
setup_heredoc                                        290     303     +13
execv                                                 23       -     -23

hush: more rodust detection of unterminated strings etc;
 fix a case where we forget to copy `cmd` text;
 optimize nommu heredoc helper by not passing environment to it;
 add several tests

function                                             old     new   delta
add_till_closing_paren                               256     308     +52
parse_stream                                        2337    2378     +41
add_till_backquote                                    82     111     +29
re_execute_shell                                     269     284     +15
handle_dollar                                        802     812     +10
parse_stream_dquoted                                 316     320      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/0 up/down: 151/0)             Total: 151 bytes

expand leak_all1.tests

slight tweak to the leak detector

hush: plug leak in run_pipe(). NOMMU only.

hush: add a leak test which currently fails

hush: add leak detector helper; fix/add tests for it

function                                             old     new   delta
builtin_memleak                                        -      92     +92
bltins                                               288     300     +12

hush: echo \2>file fix

FEATURE_FANCY_ECHO needs to be accessible for hush

hush: fix heredoc expansion of $var and `cmd`

function                                             old     new   delta
expand_pseudo_dquoted                                  -     104    +104
setup_heredoc                                        215     275     +60
done_word                                            669     691     +22
parse_stream                                        1899    1902      +3
setup_redirects                                      196     191      -5
free_pipe                                            189     183      -6
expand_variables                                    2349    2229    -120
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/3 up/down: 189/-131)           Total: 58 bytes

hush: fix wrong comment

hush: fix heredoc <<- handling.
 hush-misc/heredoc2.tests testcase needs only one fix now -
 $var and `cmd` expancsion in heredocs

function                                             old     new   delta
parse_redirect                                       265     306     +41
parse_stream                                        1866    1899     +33

hush: NOMMU-safe support of big heredocs

function                                             old     new   delta
setup_heredoc                                        116     215     +99

here documents have been added, so drop from TODO

use sleep rather than usleep

add a pathological test case for here doc related to eof marker and other ugly corner cases

implement support for parameter substitution via #/% operators

hush: heredoc support, based on patch by Mike Frysinger (vapier AT gentoo.org)
 some TODOs are to be attacked later

function                                             old     new   delta
parse_stream                                        1461    1866    +405
parse_redirect                                         -     265    +265
setup_heredoc                                          -     116    +116
setup_redirects                                      151     196     +45
builtin_exit                                          49      47      -2
redirect_opt_num                                      61      55      -6
setup_redirect                                       212       -    -212
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 2/2 up/down: 831/-220)          Total: 611 bytes

hush: s/last_return_code/last_exitcode/g

hush: fix "if false; then...fi" exitcode;
 trim "keyword"-less hush by 10 bytes

make hush-misc/*.tests executable

hush: fix a bunch of obscure while/until/continue bugs

function                                             old     new   delta
run_list                                            1159    1214     +55
done_pipe                                            106     123     +17
done_command                                          86      98     +12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 84/0)               Total: 84 bytes

*.tests should be executable

move hush-parsing/and-or.tests to hush-misc/*
 (which probably needs to be renamed to hush-execution...)

add some brute force logic tests

hush: fix "false && echo yes || echo no" bug 265

function                                             old     new   delta
run_list                                            1159    1189     +30

hush: beautify re_execute_shell more

hush: drop allocations in re_execute_shell

function                                             old     new   delta
hush_main                                           1127    1138     +11
re_execute_shell                                     286     256     -30
clean_up_after_re_execute                             66      30     -36
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 11/-66)            Total: -55 bytes

add tests for basic fd open/close/dupe

fix #>&- syntax for closing fds

fix redir1 tests -- usleep isnt standard in $PATH

hush: micro-optimization. -37 bytes

hush: more efficient filtering of "safe" arithmetic

function                                             old     new   delta
expand_variables                                    2170    2147     -23

hush: add <> and () as "safe" arith chars

hush: print cd error to stderr; use fopen_or_warn in builtin_source;
 prepare builtin_unset for function support
libbb: do not clear errno in fopen_or_warn

function                                             old     new   delta
builtin_unset                                        242     271     +29
fopen_or_warn                                         42      31     -11
builtin_cd                                            90      74     -16
builtin_source                                        89      72     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 29/-44)            Total: -15 bytes

hush: fix "export a=a b=b" (was not setting and exporting b)

function                                             old     new   delta
builtin_export                                       103     117     +14

hush: update TODO list; + my usual pointless tweaks :(

hush: mark SIGHUP TODOs better; don't disable SIGHUP for now,
 small tweaks to comments