Commit Graph

157 Commits

Author SHA1 Message Date
Natanael Copa
7e6f9316a8 lineedit: trivial codeshrink for vi-mode
Introduce and use BB_isalnum_or_underscore().

function                                             old     new   delta
BB_isalnum_or_underscore                               -      43     +43
vi_word_motion                                       162     150     -12
vi_end_motion                                        163     145     -18
vi_back_motion                                       198     179     -19
BB_isalnum                                            39       -     -39
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/3 up/down: 43/-88)            Total: -45 bytes

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-14 23:30:29 +02:00
Ron Yorston
2b91958dff Rewrite iteration through applet names to save a few bytes
function                                             old     new   delta
run_applet_and_exit                                  758     755      -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3)               Total: -3 bytes

In standalone shell mode the saving increases to 17 bytes.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-15 22:13:51 +02:00
Ron Yorston
f23264b35f lineedit: search applets as well as PATH for tab completion
In standalone shell mode search the applet table as well as PATH
when tab completing a command.

Use a stupid linear search:  we're also about to read all the
directories on PATH so efficiency isn't a big concern.

function                                             old     new   delta
add_match                                              -      53     +53
complete_cmd_dir_file                                687     724     +37
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 90/0)               Total: 90 bytes

Signed-off-by: Ron Yorston <rmy@frippery.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-30 19:49:33 +01:00
Denys Vlasenko
8dff01d06a libbb: introduce and use is_prefixed_with()
function                                             old     new   delta
is_prefixed_with                                       -      18     +18
complete_username                                     78      77      -1
man_main                                             737     735      -2
fsck_device                                          429     427      -2
unpack_ar_archive                                     80      76      -4
strip_unsafe_prefix                                  105     101      -4
singlemount                                         1054    1050      -4
rtc_adjtime_is_utc                                    90      86      -4
resolve_mount_spec                                    88      84      -4
parse_one_line                                      1029    1025      -4
parse_conf                                          1460    1456      -4
may_wakeup                                            83      79      -4
loadkmap_main                                        219     215      -4
get_irqs_from_stat                                   103      99      -4
get_header_cpio                                      913     909      -4
findfs_main                                           79      75      -4
fbsplash_main                                       1230    1226      -4
load_crontab                                         776     771      -5
expand_vars_to_list                                 1151    1146      -5
date_main                                            881     876      -5
skip_dev_pfx                                          30      24      -6
make_device                                         2199    2193      -6
complete_cmd_dir_file                                773     767      -6
run_applet_and_exit                                  715     708      -7
uudecode_main                                        321     313      -8
pwdx_main                                            197     189      -8
execute                                              568     560      -8
i2cdetect_main                                      1186    1176     -10
procps_scan                                         1242    1230     -12
procps_read_smaps                                   1017    1005     -12
process_module                                       746     734     -12
patch_main                                          1903    1891     -12
nfsmount                                            3572    3560     -12
stack_machine                                        126     112     -14
process_timer_stats                                  449     435     -14
match_fstype                                         111      97     -14
do_ipaddr                                           1344    1330     -14
open_list_and_close                                  359     343     -16
get_header_tar                                      1795    1779     -16
prepend_new_eth_table                                340     323     -17
fsck_main                                           1811    1794     -17
find_iface_state                                      56      38     -18
dnsd_main                                           1321    1303     -18
base_device                                          179     158     -21
find_keyword                                         104      82     -22
handle_incoming_and_exit                            2785    2762     -23
parse_and_put_prompt                                 774     746     -28
modinfo                                              347     317     -30
find_action                                          204     171     -33
update_passwd                                       1470    1436     -34
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/49 up/down: 18/-540)         Total: -522 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-03-12 17:48:34 +01:00
Denys Vlasenko
23cfaab47d libpwdgrp: use getpwent() instead of getpwent_r()
function                                             old     new   delta
massage_data_for_non_r_func                            -      90     +90
bb_internal_getpwent                                   -      69     +69
getXXnam_r                                            94     162     +68
fill_bounds                                          131     128      -3
deluser_main                                         355     310     -45
complete_username                                    123      78     -45
getXXnam                                             163      90     -73
massage_data_for_r_func                              103       -    -103
bb_internal_getpwent_r                               121       -    -121
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 1/5 up/down: 227/-407)         Total: -163 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-02-07 21:21:02 +01:00
Ron Yorston
20cd31a2d7 lineedit: don't block when looking for escape sequence in vi-mode
In vi-mode lineedit tries to detect some escape sequences.
After the ESC it reads the next character to check for certain
values.  This read should have a timeout or a user-entered ESC to
switch to command mode doesn't properly handle the next character.

Signed-off-by: Ron Yorston <rmy@tigress.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-12-15 13:30:58 +01:00
Denys Vlasenko
d598a8d4e6 lineedit: don't fall back to simple line input if tty is in raw mode
Testcase: shell command input after python ^Z should still work

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-12-10 17:22:13 +01:00
Denys Vlasenko
79df481dc4 lineedit: fix trivial build failure
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-01-10 14:38:26 +01:00
Denys Vlasenko
1b9ac21166 lineedit: use unicode_strwidth instead of unicode_strlen
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-20 16:13:05 +02:00
Denys Vlasenko
e66a56de23 lineedit: fix multi-line PS1 handling: calculate PS1 length from last \n
function                                             old     new   delta
parse_and_put_prompt                                 755     774     +19

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-19 16:45:04 +02:00
Denys Vlasenko
7a18043a96 lineedit: improve Unicode handling (still buggy though)
function                                             old     new   delta
unicode_strlen                                         -      31     +31
read_line_input                                     3876    3879      +3
lineedit_read_key                                    255     246      -9
parse_and_put_prompt                                 785     755     -30
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/2 up/down: 34/-39)             Total: -5 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-19 16:44:05 +02:00
Flemming Madsen
d96ffda62e ash,hush: history builtin
function                                             old     new   delta
show_history                                           -      39     +39
builtin_history                                        -      16     +16
historycmd                                             -      13     +13
bltins1                                              312     324     +12
builtintab                                           336     344      +8
popstring                                            134     140      +6
hush_main                                           1048    1046      -2
ash_main                                            1398    1396      -2
size_from_HISTFILESIZE                                44      40      -4
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 3/3 up/down: 94/-8)              Total: 86 bytes

Signed-off-by: Flemming Madsen <busybox@themadsens.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-04-07 18:47:24 +02:00
Denys Vlasenko
8172d054db lineedit: \W on "/bin" should show "bin", not "/bin"
function                                             old     new   delta
parse_and_put_prompt                                 793     785      -8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-29 13:21:53 +01:00
Denys Vlasenko
1d14569a66 lineedit: implement \T \t \A \@ prompts escapes, fix \W escape, drop \!
function                                             old     new   delta
parse_and_put_prompt                                 742     793     +51
read_line_input                                     3836    3826     -10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-29 13:10:23 +01:00
Denys Vlasenko
6c852bfcad lineedit: add handling of \H in prompt
Based on the patch by Arnaud Rébillout <rebillout@syscom.ch>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-28 13:20:12 +01:00
Shawn J. Goff
46031da862 lineedit: initialize delptr
In vi mode, the 'p' and 'P' commands caused a segfault when nothing had
been put in the buffer yet because the delptr was not initialized.

Signed-off-by: Shawn J. Goff <shawn7400@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-27 18:30:05 +01:00
Denys Vlasenko
b2320370be lineedit: in !EDITING config, return -1 on fgets error
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-09-27 16:03:49 +02:00
Cliff Frey
4919565c15 lineedit: fix Alt-D when cursor==0
Signed-off-by: Cliff Frey <cliff@meraki.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-08-07 17:59:40 +02:00
Dennis Groenen
deee356a62 lineedit: histfile can get emptied when CONFIG_FEATURE_EDITING_SAVE_ON_EXIT=y
When CONFIG_FEATURE_EDITING_SAVE_ON_EXIT is set to y, the histfile
will get cleared if the total amount of history lines is less than MAX_HISTORY.
Only if the histfile is not empty _and_ the amount of lines currently
in memory are equal to or greater than MAX_HISTORY, history saving will
work as expected with this feature enabled.

Output from defconfig + CONFIG_FEATURE_EDITING_SAVE_ON_EXIT=y:
$ echo "foo" > ~/.ash_history
$ ./busybox ash
~/busybox/a $ echo "bar" > /dev/null
~/busybox/a $ exit
$ cat ~/.ash_history
$

Output with the patch applied and same config as above:
$ echo "foo" > ~/.ash_history
$ ./busybox ash
~/busybox/b $ echo "bar" > /dev/null
~/busybox/b $ exit
$ cat ~/.ash_history
foo
echo "bar" > /dev/null
exit
$

Signed-off-by: Dennis Groenen <tj.groenen at gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-26 11:19:38 +02:00
Denys Vlasenko
56443cdbdd whitespace fixes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-20 15:07:22 +02:00
Denys Vlasenko
7ce209b9d4 shell_builtin_read: set cc[VMIN] to 1; lineedit: don't clear c_cc[VINTR]
First change fixes "read -n NUM". Apparently poll() won't report
data availability if cc[VMIN] > 1 until there are at least cc[VMIN] bytes.

function                                             old     new   delta
read_line_input                                     3885    3877      -8
shell_builtin_read                                  1097    1087     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-18)             Total: -18 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-01-15 22:58:06 +01:00
Denys Vlasenko
c0cae52662 lineedit: fix build failure
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-04 01:09:09 +01:00
Denys Vlasenko
9ce09bc9cb lineedit: add support for M-b, M-f, M-d, M-Backspace
function                                             old     new   delta
ctrl_left                                              -      96     +96
ctrl_right                                             -      76     +76
static.esccmds                                        81      93     +12
read_line_input                                     3876    3885      +9
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 2/0 up/down: 193/0)             Total: 193 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-03 13:28:22 +01:00
Denys Vlasenko
e45af7ad17 lineedit: remove SAVE_HISTORY bit, ->hist_file can be used as indicator
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-04 16:15:24 +02:00
Denys Vlasenko
bede215cf1 lineedit: add support for history saving on exit
Based on the patch by Dennis Groenen <tj.groenen@gmail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-04 16:12:33 +02:00
Denys Vlasenko
4840ae8a06 lineedit: fix atomic replace of history file; hush: fix $HISTFILE handling
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-04 15:28:03 +02:00
Denys Vlasenko
a669eca3a2 libbb/lineedit: implement optional Ctrl-R history search
function                                             old     new   delta
read_line_input                                     3433    3957    +524
load_string                                           77      90     +13
input_tab                                           1086    1069     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 537/-17)           Total: 520 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-07-11 07:36:59 +02:00
Alexey Fomenko
232ebaa568 lineedit: fix rare SEGV; mark a few FIXMEs
Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-05-20 04:26:29 +02:00
Denys Vlasenko
e3d8d077b7 small fix for HISTFILESIZE
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-31 14:39:38 +02:00
Denys Vlasenko
2c4de5b045 ash,hush: optional support for $HISTFILESIZE.
Based on patch from Alexey Fomenko (ext-alexey.fomenko AT nokia.com)

function                                             old     new   delta
size_from_HISTFILESIZE                                 -      44     +44
hush_main                                            998    1025     +27
ash_main                                            1348    1374     +26
read_line_input                                     3361    3372     +11
new_line_input_t                                      17      24      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-31 13:16:52 +02:00
Denys Vlasenko
353680aa46 lineedit: fixes for CONFIG_UNICODE_USING_LOCALE=y
function                                             old     new   delta
load_string                                           45      91     +46
save_string                                           40      82     +42
reinit_unicode                                        34      61     +27
BB_PUTCHAR                                            97     120     +23
init_unicode                                          17      37     +20
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 158/0)             Total: 158 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-27 01:18:07 +01:00
Denys Vlasenko
66c5b12dbf ash: fix TMOUT not restoring tty attributes
function                                             old     new   delta
pgetc                                                420     500     +80
readtoken1                                          3202    3239     +37
read_line_input                                     3316    3337     +21
udhcpc_main                                         2610    2630     +20
file_get                                             266     272      +6
expandarg                                            958     963      +5
localcmd                                             257     259      +2
addLines                                              85      87      +2
read_line                                             94      95      +1
ed_main                                             2540    2541      +1
timed_out                                              1       -      -1
lineedit_read_key                                    256     255      -1
alrm_sighandler                                       44       -     -44
cmdloop                                              539     434    -105
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 10/2 up/down: 175/-151)          Total: 24 bytes
   text    data     bss     dec     hex filename
 887379     936   17200  905515   dd12b busybox_old
 887411     936   17192  905539   dd143 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-08 05:07:02 +01:00
Mike Shal
f3763033e4 lineedit: fix tab-completion of filenames with spaces
Using ash in busybox git version dea28e1e, tab completion doesn't seem
to work properly for filenames that have special characters (such as
spaces) in them. For example, with filenames "foo bar" and "foo zap",
typing "ls fo<TAB>" correctly expands to "ls foo\ ", but then
continuing to type "b<TAB>" will produce "ls foo\ bbar", which is not
correct (the 'b' is duplicated).

Signed-off-by: Mike Shal <marfey@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-11-22 03:49:18 +01:00
Wolfram Sang
2e9aeae4db lineedit: create history files with mode 0600
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-11-15 02:58:28 +01:00
Marek Polacek
7b18107384 *: use _exit() in sighandlers; showkey: do not use exit-thru-sighandler
While at it, make ESC sequences more readable; and removed check for
isatty(stdin) in reset. Code shrink:

   text    data     bss     dec     hex filename
 884771     936   17216  902923   dc70b busybox_old
 884723     936   17216  902875   dc6db busybox_unstripped

Signed-off-by: Marek Polacek <mmpolacek@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-28 21:34:56 +02:00
Denys Vlasenko
d55f599440 lineedit: do not hang on error, but return error indicator.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-07 18:40:53 +02:00
Denys Vlasenko
3926363214 lineedit: on tab completion, show filenames obly in all cases (bash compat)
function                                             old     new   delta
complete_cmd_dir_file                                731     730      -1

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 14:11:08 +02:00
Denys Vlasenko
76939e7b72 lineedit: allocate matchBuf only temporarily: saves MAX_LINELEN bytes
function                                             old     new   delta
input_tab                                           1027    1041     +14
build_match_prefix                                   590     562     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 14/-28)            Total: -14 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 14:09:24 +02:00
Denys Vlasenko
ba0e103a66 lineedit: de-indent large block in input_tab. No logic changes.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 14:08:24 +02:00
Denys Vlasenko
a46e16ef52 lineedit: rename tmp -> chosen_match; small code shrink
function                                             old     new   delta
input_tab                                           1016    1012      -4

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 13:05:51 +02:00
Denys Vlasenko
9b56bf5416 lineedit: stop using permanent int_buf[] (16k!): allocate it
Now it is allocated temporarily only for the duretion of prefix generation,
and also we only allocate the needed size, not maximally possible.

function                                             old     new   delta
build_match_prefix                                   579     590     +11
remove_chunk                                          43      28     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 11/-15)             Total: -4 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 13:02:47 +02:00
Denys Vlasenko
81254ed387 lineedit: remove pos_buf[] array (up to 16k!); fix compat bugs
pos_buf is a strange hack, easy to do without it.
This also allows lines >32k long to be handled.
Also simplified match prefix generations and made behavior more like bash.

function                                             old     new   delta
remove_chunk                                           -      43     +43
collapse_pos                                          79       -     -79
build_match_prefix                                   804     579    -225
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 43/-304)          Total: -261 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 12:59:15 +02:00
Denys Vlasenko
3c460b005c lineedit: return prefix len from tab completion helpers
This kills horrific logic which deletes and re-adds prefix (!)

function                                             old     new   delta
complete_cmd_dir_file                                705     731     +26
complete_username                                    121     124      +3
input_tab                                           1041    1016     -25
build_match_prefix                                   838     804     -34
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 29/-59)            Total: -30 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 12:56:36 +02:00
Denys Vlasenko
2679e3c8cc lineedit: clean up tab completion code (variable reuse, comments)
Noted bugs in behavior.
Added debugging machinery.
Decoupled variables reused for unrelated purposes: apparently,
when not forced to use liveness analysis, gcc fares better.

function                                             old     new   delta
complete_cmd_dir_file                                699     705      +6
collapse_pos                                          75      79      +4
build_match_prefix                                   892     838     -54
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 10/-54)            Total: -44 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 12:53:15 +02:00
Denys Vlasenko
57ea9b488b preparatory cleanup patch for tab completion fixes
renames and deinlines a few functions

function                                             old     new   delta
input_tab                                              -    1041   +1041
complete_cmd_dir_file                                  -     699    +699
complete_username                                      -     121    +121
username_completion                                  121       -    -121
read_line_input                                     5002    3313   -1689
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 0/1 up/down: 1861/-1810)         Total: 51 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-03 12:51:36 +02:00
Denys Vlasenko
7063e86d0d lineedit: small readability improvement (same code)
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-02 12:44:39 +02:00
Denys Vlasenko
61a36af45d lineedit: fix completion with Unicode chars
function                                             old     new   delta
read_line_input                                     4966    5002     +36
bb_wcstombs                                          170     159     -11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 36/-11)             Total: 25 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-02 12:03:11 +02:00
Denys Vlasenko
b068bd7a41 lineedit: preparatory cleanup patch for Unicode completion fix
Some logic changes and function renames. The fix will follow this patch,
to mkae it distinct from cleanup.

function                                             old     new   delta
build_match_prefix                                     -     892    +892
username_completion                                    -     121    +121
read_line_input                                     4902    4966     +64
username_tab_completion                              235       -    -235
find_match                                           892       -    -892
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 1/0 up/down: 1077/-1127)        Total: -50 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-09-02 12:01:11 +02:00
Denys Vlasenko
451add4f23 lineedit: mostly revert recent wrong logic in "ask terminal" code
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-07-25 00:06:41 +02:00
Denys Vlasenko
55241fa2e0 lineedit: limit ASK_TERMINAL to the case when we can't find out the width
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-07-18 22:53:06 +02:00