Apple-2gs-SW/hush
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hush/shell
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Denis Vlasenko f20de5bb42 ash,kill: use common code for kill applet/builtin 
# make bloatcheck
function                                             old     new   delta
evaltreenr                                           644     654     +10
evaltree                                             644     654     +10
parse_conf                                          1440    1444      +4
dpkg_deb_main                                        426     429      +3
ed_main                                             3319    3321      +2
passwd_main                                         2093    2091      -2
kill_main                                            830     826      -4
singlemount                                         4609    4601      -8
find_command                                         962     954      -8
get_lcm                                              123     105     -18
.rodata                                           132243  132147     -96
killcmd                                              449     120    -329
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/7 up/down: 29/-465)          Total: -436 bytes

# size busybox_old busybox_unstripped
   text    data     bss     dec     hex filename
 723901    2940   27504  754345   b82a9 busybox_old
 723457    2940   27504  753901   b80ed busybox_unstripped
2007-04-29 23:42:54 +00:00
..
ash_test fix accumulated whitespace and indentation damage 2007-03-20 11:30:28 +00:00
ash.c ash,kill: use common code for kill applet/builtin 2007-04-29 23:42:54 +00:00
bbsh.c style fixes. No code changes 2007-04-12 00:32:05 +00:00
Config.in hush: make job control and interactiveness configurable, part 2 2007-04-28 16:48:27 +00:00
hush.c hush: make job control and interactiveness configurable, part 2 2007-04-28 16:48:27 +00:00
Kbuild cmdedit is not a 'command' editing anymore, it's just editing (generic), 2007-01-22 09:03:07 +00:00
lash.c lash: recognize and use NOFORK applets 2007-04-14 11:16:29 +00:00
msh.c shells: remove few statics and duplicated code 2007-04-16 22:34:39 +00:00
README ash: fix infinite loop on exit if tty is not there anymore 2007-04-28 22:39:02 +00:00
README.job hush: small code shrink; style fixes 2007-04-20 08:35:45 +00:00
susv3_doc.tar.bz2 shell/: add SUSv3 doc for fast & easy reference 2007-04-13 19:44:22 +00:00

README 

Various bits of what is known about busybox shells, in no particular order.

2007-04-28
hush: Ctrl-C and Ctrl-Z for single NOFORK commands are working.
Memory and other resource leaks (opendir) are not addressed
(testcase is "rm -i" interrupted by ctrl-c).

2007-04-21
hush: "sleep 5 | sleep 6" + Ctrl-Z + fg seems to work.
"rm -i" + Ctrl-C, "sleep 5" + Ctrl-Z still doesn't work
for SH_STANDALONE case :(

2007-04-21
hush: fixed non-backgrounding of "sleep 1 &" and totally broken
"sleep 1 | sleep 2 &". Noticed a bug where successive jobs
get numbers 1,2,3 even when job #1 has exited before job# 2 is started.
(bash reuses #1 in this case)

2007-04-21
hush: "sleep 1 | exit 3; echo $?" prints 0 because $? is substituted
_before_ pipe gets executed!! run_list_real() already has "pipe;echo"
parsed and handed to it for execution, so it sees "pipe"; "echo 0".

2007-04-21
hush: removed setsid() and made job control sort-of-sometimes-work.
Ctrl-C in "rm -i" works now except for SH_STANDALONE case.
"sleep 1 | exit 3" + "echo $?" works, "sleep 1 | exit 3; echo $?"
shows exitcode 0 (should be 3). "sleep 1 | sleep 2 &" fails horribly.

2007-04-14
lash, hush: both do setsid() and as a result don't have ctty!
Ctrl-C doesn't work for any child (try rm -i), etc...
lash: bare ">file" doesn't create a file (hush works)