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400c5b6fc6
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670 Commits

Author SHA1 Message Date
Denis Vlasenko
400c5b6fc6 hush: add parse tree debug print 2007-05-04 13:07:27 +00:00
Denis Vlasenko
e725bfe6e0 hush: fix "true | exit 3; echo $?" bug 2007-05-03 22:45:39 +00:00
Denis Vlasenko
f2fffd0014 hush: remove env builtin (it is buggy). Add comments 2007-05-02 23:39:04 +00:00
Denis Vlasenko
d01ff13454 hush: simplify debugging prints a little bit 2007-05-02 21:40:23 +00:00
Denis Vlasenko
4ac530c0ef hush: add debugging for tracing execution, 
add FIXME for 'true | exit 3; echo $?' case
 2007-05-02 15:35:45 +00:00
Denis Vlasenko
ef36ead370 hush: fix incorrect exitcodes without job control 2007-05-02 15:34:47 +00:00
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
Denis Vlasenko
08c8c1d3b3 ash: fix infinite loop on exit if tty is not there anymore 2007-04-28 22:39:02 +00:00
Denis Vlasenko
e3f2f89891 hush: make job control and interactiveness configurable, part 2 2007-04-28 16:48:27 +00:00
Denis Vlasenko
b81b3df1fa hush: make job control and interactiveness configurable, part 1 2007-04-28 16:48:04 +00:00
Denis Vlasenko
0937be5fa6 hush: make hush properly detect EOF on stdin (even interactive one - 
think about pty being destroyed) and exit.
 2007-04-28 16:47:08 +00:00
Denis Vlasenko
b5eaabb322 hush: add Ctrl-C handling to nofork case 2007-04-28 16:45:59 +00:00
Denis Vlasenko
3ac0e00553 hush: better signal handling across ctrl-z 2007-04-28 16:45:22 +00:00
Denis Vlasenko
18e19f2b0d hush: fix nofork + ctrl-Z clobbering of globals 2007-04-28 16:43:18 +00:00
Denis Vlasenko
a6a1785a30 hush: add ctrl-Z handling for nofork'ed case 2007-04-28 16:42:11 +00:00
Denis Vlasenko
1359da6ac7 hush: make Ctrl-Z work (at least sometimes) 2007-04-21 23:27:30 +00:00
Denis Vlasenko
762d35c75f hust: add a comment 2007-04-21 17:28:51 +00:00
Denis Vlasenko
52881e9f23 hush: fix more backgrounding bugs. Plenty of them remains still. 2007-04-21 13:42:52 +00:00
Denis Vlasenko
2f1bb36a55 hush: explain why "pipe; exit $?" doesn't show correct exitcode 2007-04-21 10:01:14 +00:00
Denis Vlasenko
87cb2db703 hush: do not print message if killed by signal; 
move some functions up before main()
 2007-04-21 10:00:01 +00:00
Denis Vlasenko
54e7ffb3a4 hush: begin fixing non-functional job control 2007-04-21 00:03:36 +00:00
Denis Vlasenko
5f786c24e4 hush: small code shrink; style fixes 2007-04-20 08:35:45 +00:00
Denis Vlasenko
d1801a4430 dd: fix skip= parse error (spotted by Dirk Clemens <develop@cle-mens.de>) 2007-04-19 20:08:19 +00:00
Denis Vlasenko
05a6d9cbb2 doc: add README on shell job control 2007-04-19 17:26:34 +00:00
Denis Vlasenko
516a0ca2dc ps: add -o tty and -o rss support 
1373      14      24    1411     583 busybox.t1/procps/ps.o
   1462      14      24    1500     5dc busybox.t2/procps/ps.o
 2007-04-19 14:46:14 +00:00
Denis Vlasenko
55b2de71d7 hush: remove stray semicolon (should change nothing) 2007-04-18 17:21:28 +00:00
Denis Vlasenko
7d4c44e1b1 shells: remove few statics and duplicated code 
(much more of the same remains, alas)
function                                             old     new   delta
doset                                                330     332      +2
warn                                                  53      51      -2
onecommand                                           463     461      -2
ioecho                                                40      38      -2
forkexec                                            1412    1410      -2
err                                                   81      79      -2
setdash                                               59      56      -3
flag                                                   4       -      -4
msh_main                                            1389    1384      -5
eval                                                 388     381      -7
subgetc                                              759     747     -12
static.local                                          14       -     -14
b_adduint                                             70      52     -18
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/10 up/down: 2/-73)            Total: -71 bytes
 2007-04-16 22:34:39 +00:00
Denis Vlasenko
ac678ec2f1 style fixes, no code changes 2007-04-16 22:32:04 +00:00
Denis Vlasenko
e471275813 msh: style fixes 
shell/README - a place to record things about busybox shells
 2007-04-14 15:08:41 +00:00
Denis Vlasenko
5f9468e996 lineedit: nuke two unused variables and code which sets them 
applets: do not even try to read config if run by real root
msh: use named constants (O_RDONLY etc) in open() instead of magic numbers,
     other minor code size reduction.
 2007-04-14 13:22:09 +00:00
Denis Vlasenko
8a28e620ce lash: recognize and use NOFORK applets 
lash,hush: fix kill buglet (didn't properly recognize ESRCH)
 2007-04-14 11:16:29 +00:00
Denis Vlasenko
f5294e1f4c hush: use NOFORK applets as appropriate. Net reduction of code size. 2007-04-14 10:09:57 +00:00
Denis Vlasenko
16abcd90ae teach find_root_device to deal with /dev/ subdirs 
(by "Kirill K. Smirnov" <lich@math.spbu.ru>)
 2007-04-13 23:59:52 +00:00
Denis Vlasenko
fbf6dea5a2 hush: more style fixes. 2007-04-13 19:56:56 +00:00
Denis Vlasenko
f03dbeda90 hush: comment out and replace bug in set_local_var: 
-       if (value == 0 && ++value == 0) {
+       /*if (value == 0 && ++value == 0) ??? -vda */
+       if (value == NULL || value[1] == '\0') {

Style fixes.
 2007-04-13 19:55:50 +00:00
Denis Vlasenko
b636d8c18c shell/: add SUSv3 doc for fast & easy reference 2007-04-13 19:44:22 +00:00
Denis Vlasenko
b69f35effe lash: "forking" applets are actually can be treated the same way as "non-forked". 
Also save a bit of space on trailing NULL array elements.
 2007-04-12 17:10:45 +00:00
Denis Vlasenko
7cced6e574 fix realloc-of-non-malloced pointer, and reduce size while at it 2007-04-12 17:08:53 +00:00
Denis Vlasenko
831a20f512 pass a copy of argv[i] to NOFORK applets (they may permute it etc). 
set/save/restore more shared global variables whan call one applet from another
 2007-04-12 12:27:32 +00:00
Denis Vlasenko
51742f4bb0 style fixes. No code changes 2007-04-12 00:32:05 +00:00
Denis Vlasenko
50f7f446ec bb_full_fd_action: remove potential xmalloc from NOFORK path 
cat: stop using stdio.h opens
libbb: introduce & use open[3]_or_warn
function                                             old     new   delta
open3_or_warn                                          -      54     +54
bb_cat                                               115     144     +29
open_or_warn                                           -      25     +25
unlzma                                              2404    2412      +8
chattr_main                                          334     339      +5
xstrtoul_range_sfx                                   251     255      +4
telnet_main                                         1514    1510      -4
static.opt                                             4       -      -4
qgravechar                                           122     118      -4
fuser_add_pid                                         61      54      -7
fuser_add_inode                                      154     147      -7
writeFileToTarball                                  1542    1534      -8
refresh                                             1156    1148      -8
do_show                                              856     846     -10
read_leases                                          212     200     -12
setup_redirects                                      236     222     -14
iproute_list_or_flush                               1582    1568     -14
read_config                                          427     411     -16
write_leases                                         284     264     -20
hash_file                                            338     318     -20
copy_file                                           1760    1740     -20
do_iproute                                          2610    2588     -22
bb_full_fd_action                                    320     269     -51
open_to_or_warn                                      103      49     -54
fuser_main                                          1660    1596     -64
.rodata                                           131160  131096     -64
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 4/19 up/down: 125/-423)        Total: -298 bytes
 2007-04-11 23:20:53 +00:00
Denis Vlasenko
d7c8196c1b ash: fix kill -l (by Mats Erik Andersson <mats.andersson64@comhem.se>) 2007-04-11 20:43:31 +00:00
Denis Vlasenko
6398cf477d style fixes, no code changes. 2007-04-11 17:04:29 +00:00
Denis Vlasenko
e4f2d064b0 rename: run_applet_by_name -> run_applet_and_exit 2007-04-11 17:03:19 +00:00
Denis Vlasenko
80d14beae9 Rename two config options: 
FEATURE_SH_STANDALONE_SHELL => FEATURE_SH_STANDALONE
FEATURE_EXEC_PREFER_APPLETS => FEATURE_PREFER_APPLETS
Make SH_STANDALONE depend on PREFER_APPLETS.
getopt.c: more randomconfig-induced fixes
 2007-04-10 23:03:30 +00:00
Denis Vlasenko
335b63d8d1 make a few struct bb_applet members conditional 
rename sllep_and_die -> xfunc_die
make fflush_stdout_and_exit NOFORK-safe
fix some buglets found by randomconfig
 2007-04-10 21:38:30 +00:00
Denis Vlasenko
ff131b980d style fixes. No code changes. 2007-04-10 15:42:06 +00:00
Bernhard Reutner-Fischer
de17ece1db - use skip_non_whitespace() where appropriate 2007-04-10 09:38:35 +00:00
Denis Vlasenko
c44ab01b75 Improve STANDALONE_SHELL. "safe" applets are renamed NOEXEC applets 
and now this fact is recorded in applets.h, not ash.c.

Several fixes to "--help + STANDALONE_SHELL" scenarios.

function                                             old     new   delta
run_current_applet_and_exit                            -     355    +355
arith                                               2064    2073      +9
refresh                                             1148    1156      +8
getopt32                                            1068    1073      +5
telnet_main                                         1510    1514      +4
md5_sha1_sum_main                                    565     566      +1
xstrtoul_range_sfx                                   255     251      -4
packed_usage                                       22523   22514      -9
tryexec                                              255     203     -52
static.safe_applets                                  152       -    -152
.rodata                                           131320  131128    -192
run_applet_by_name                                   869     506    -363
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 5/5 up/down: 382/-772)         Total: -390 bytes

./busybox ash -c 'i=20000; while test $i != 0; do touch z; i=$((i-1)); done'
runs more than twice as fast with STANDALONE_SHELL versus without.
 2007-04-09 03:11:58 +00:00
Denis Vlasenko
95cb3263ae msh: smallish code shrinkage; cosmetics 2007-04-09 03:06:34 +00:00