Denys Vlasenko
96769486e2
shell: move varcmp() to shell_common.h and use it in hush
...
function old new delta
unset_local_var - 112 +112
findvar 31 35 +4
set_vars_and_save_old 144 141 -3
helper_export_local 235 230 -5
set_local_var 425 416 -9
handle_changed_special_names 38 27 -11
builtin_unset 154 141 -13
builtin_getopts 404 391 -13
get_local_var_value 281 260 -21
get_ptr_to_local_var 71 45 -26
unset_local_var_len 139 - -139
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/8 up/down: 116/-240) Total: -124 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-17 21:13:13 +02:00
Denys Vlasenko
bab8828b0d
hush: fix expansion of space in "a=${a:+$a }c" construct
...
function old new delta
encode_then_append_var_plusminus 554 552 -2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-12 16:39:32 +02:00
Denys Vlasenko
b5be8da350
hush: make "false" built-in
...
function old new delta
bltins1 384 396 +12
builtin_false - 6 +6
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 18/0) Total: 18 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-25 15:24:56 +02:00
Denys Vlasenko
6824298ab4
hush: fix ELIF cmd1;cmd2 THEN ... not executing cmd2, closes 15571
...
function old new delta
run_list 1012 1024 +12
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-25 14:22:10 +02:00
Denys Vlasenko
3a7f00eadc
hush: add comment about abort on syntax error %{^}
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-09 14:02:06 +02:00
Denys Vlasenko
3c8e540eb7
hush: fix an interactive abort on error
...
function old new delta
parse_and_run_stream 140 155 +15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-08 12:27:50 +02:00
Ron Yorston
acae889dd9
ash,hush: tab completion of functions and aliases
...
Since commit 9e2a5668f
2023-04-16 17:15:05 +02:00
Denys Vlasenko
90b607d79a
hush: quote variable values printed by "set" (match ash behavior)
...
function old new delta
builtin_set 258 301 +43
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-04-13 09:20:24 +02:00
Denys Vlasenko
6748e6494c
hush (NOMMU): fix LINENO in execed children
...
function old new delta
hush_main 1815 1851 +36
re_execute_shell 601 635 +34
.rodata 102721 102726 +5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 75/0) Total: 75 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-04-01 23:17:53 +02:00
Denys Vlasenko
fd5fb2d2b5
hush: speed up "big heredoc" code
...
function old new delta
hush_main 1810 1815 +5
.rodata 102723 102721 -2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 5/-2) Total: 3 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-04-01 22:52:08 +02:00
Denys Vlasenko
1409432d07
hush: add TODO comment
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-04-01 22:16:32 +02:00
Denys Vlasenko
93ae7464e6
hush: restore SIGHUP handling, this time explain why we do what we do
...
function old new delta
check_and_run_traps 229 278 +49
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-01-30 18:48:36 +01:00
Denys Vlasenko
1fdb33bd07
hush: restore tty pgrp on SIGHUP
...
Found one case where SIGHUP does need some handling.
ash does not restore tty pgrp when killed by SIGHUP, and
this means process which started ash needs to restore it,
or it would get backgrounded when trying to use tty.
function old new delta
check_and_run_traps 214 229 +15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-01-30 16:49:48 +01:00
Denys Vlasenko
6101b6d3ea
hush: remove special handling of SIGHUP
...
Kernel should do the right thing.
(ash and dash do not have special SIGHUP handling.)
function old new delta
check_and_run_traps 278 214 -64
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-01-30 15:57:04 +01:00
Denys Vlasenko
93e0898c66
shell: fix SIGWINCH and SIGCHLD (in hush) interrupting line input, closes 15256
...
function old new delta
record_pending_signo 32 63 +31
lineedit_read_key 231 224 -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 31/-7) Total: 24 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-01-26 12:56:33 +01:00
Denys Vlasenko
969e008168
hush: code shrink
...
function old new delta
run_list 1032 1012 -20
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-01-03 14:08:18 +01:00
Denys Vlasenko
27be0e8cfe
shell: fix compile failures in some configs
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-01-03 08:28:16 +01:00
Ron Yorston
7d1c7d8337
ash,hush: use HOME for tab completion and prompts
...
ash and hush correctly use the value of HOME for tilde expansion.
However the line editing code in libbb obtains the user's home
directory by calling getpwuid(). Thus tildes in tab completion
and prompts may be interpreted differently than in tilde expansion.
When the line editing code is invoked from a shell make it use the
shell's interpretation of tilde. This is similar to how GNU readline
and bash collaborate.
function old new delta
get_homedir_or_NULL 29 72 +43
optschanged 119 126 +7
hush_main 1204 1211 +7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 57/0) Total: 57 bytes
v2: Always check for HOME before trying the password database: this
is what GNU readline does.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-06-26 18:05:50 +02:00
Denys Vlasenko
987be932ed
*: slap on a few ALIGN_PTR where appropriate
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-02-06 20:07:12 +01:00
Denys Vlasenko
12566e7f9b
ash,hush: fix handling of SIGINT while waiting for interactive input
...
function old new delta
lineedit_read_key 160 237 +77
__pgetc 522 589 +67
fgetc_interactive 244 309 +65
safe_read_key - 39 +39
read_key 588 607 +19
record_pending_signo 23 32 +9
signal_handler 75 81 +6
.rodata 104312 104309 -3
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 6/1 up/down: 282/-3) Total: 279 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-17 11:46:23 +01:00
Denys Vlasenko
931c55f9e2
libbb: invert the meaning of SETUP_ENV_NO_CHDIR -> SETUP_ENV_CHDIR
...
Double negatives are hard to grok.
function old new delta
login_main 986 988 +2
su_main 474 470 -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 2/-4) Total: -2 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-13 12:50:48 +01:00
Denys Vlasenko
db5546ca10
libbb: code shrink: introduce and use [_]exit_SUCCESS()
...
function old new delta
exit_SUCCESS - 7 +7
_exit_SUCCESS - 7 +7
run_pipe 1562 1567 +5
pseudo_exec_argv 399 400 +1
finish 86 87 +1
start_stop_daemon_main 1109 1107 -2
shutdown_on_signal 38 36 -2
runsv_main 1662 1660 -2
redirect 1070 1068 -2
read_line 79 77 -2
pause_and_low_level_reboot 54 52 -2
list_i2c_busses_and_exit 483 481 -2
less_exit 12 10 -2
identify 4123 4121 -2
grep_file 1161 1159 -2
getty_main 1519 1517 -2
fsck_minix_main 2681 2679 -2
free_session 132 130 -2
fdisk_main 4739 4737 -2
clean_up_and_exit 53 51 -2
bsd_select 1566 1564 -2
bb_daemonize_or_rexec 198 196 -2
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 3/17 up/down: 21/-34) Total: -13 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2022-01-05 22:16:06 +01:00
Denys Vlasenko
aaf3d5ba74
shell: tweak --help
...
Even though formally it is -s [ARGS], "sh -s" without ARGS
is the same as just "sh". And we are already over 80 chars wide
for ash --help, so make it shorter.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-13 11:25:42 +02:00
Denys Vlasenko
62f1eed1e1
hush: in a comment, document what -i might be doing
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-13 00:09:07 +02:00
Denys Vlasenko
7c3e96d4b3
shell: use more compact SHELL_ASH / HUSH config defines. no code changes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-12 01:24:32 +02:00
Denys Vlasenko
53b2fdcdba
*: add NOINLINEs where code noticeably shrinks
...
function old new delta
display 85 1463 +1378 -73 bytes
select_and_cluster - 1088 +1088 -139 bytes
parse_reply - 979 +979 -109 bytes
zbc_num_sqrt - 632 +632 -191 bytes
show_bridge_port - 585 +585 -56 bytes
sp_256_proj_point_add_8 - 576 +576 -45 bytes
encode_then_append_var_plusminus - 554 +554 -118 bytes
read_mode_db - 537 +537 -47 bytes
fbset_main 1331 747 -584
sp_256_ecc_mulmod_8 1157 536 -621
brctl_main 2189 1548 -641
expand_one_var 2544 1872 -672
zxc_vm_process 6412 5589 -823
send_queries 1813 725 -1088
recv_and_process_peer_pkt 2245 1018 -1227
bb_dump_dump 1531 80 -1451
------------------------------------------------------------------------------
(add/remove: 7/0 grow/shrink: 1/8 up/down: 6329/-7107) Total: -778 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-10 13:50:53 +02:00
Denys Vlasenko
49bcf9f40c
hush: speed up ${x//\*/|} too
...
function old new delta
expand_one_var 2502 2544 +42
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-10-09 03:52:04 +02:00
Denys Vlasenko
574b9c446d
hush: fix var_LINENO3.tests failure
...
function old new delta
parse_and_run_string 40 62 +22
i_getch 105 102 -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 22/-3) Total: 19 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-07 21:44:44 +02:00
Denys Vlasenko
e53c7dbafc
hush: fix set -n to act immediately, not just after run_list()
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-09-07 02:25:52 +02:00
Denys Vlasenko
21afddefd2
hush: fix "error: invalid preprocessing directive ##"
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-08-15 20:08:53 +02:00
Denys Vlasenko
37460f5daf
hush: tweak ${var/pattern/repl} optimization
...
function old new delta
expand_one_var 2507 2502 -5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-27 18:13:39 +02:00
Denys Vlasenko
49cc3cac30
hush: optimize ${var/pattern/repl} for trivial patterns
...
function old new delta
expand_one_var 2353 2507 +154
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-27 17:53:55 +02:00
Denys Vlasenko
8dd676c6c3
hush: add missed "undef"
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-27 04:09:45 +02:00
Denys Vlasenko
b278d82c61
hush: implement $'str' bashism
...
function old new delta
parse_dollar_squote - 441 +441
encode_then_expand_vararg 359 380 +21
parse_stream 2252 2271 +19
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 481/0) Total: 481 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-07-26 15:32:46 +02:00
Denys Vlasenko
97c3b5e3ff
hush: fix bkslash+newline handling and number validation in ${NN} and ${#NN}
...
Entering "${1a}" into interactive shell was making it exit.
function old new delta
parse_dollar 824 958 +134
i_getch_and_eat_bkslash_nl - 44 +44
parse_expr 917 938 +21
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 199/0) Total: 199 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-19 15:45:45 +02:00
Denys Vlasenko
83a4967e50
hush: fix handling of "cmd && &"
...
function old new delta
done_pipe 213 231 +18
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-15 18:14:27 +02:00
Denys Vlasenko
1b7a9b68d0
hush: fix handling of \^C and "^C"
...
function old new delta
parse_stream 2238 2252 +14
encode_string 243 256 +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 27/0) Total: 27 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-15 16:46:30 +02:00
Denys Vlasenko
1f60d88cf6
*: more --help tweaks
...
function old new delta
packed_usage 33552 33541 -11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-15 10:00:18 +02:00
Denys Vlasenko
e2b9215868
*: --help tweaks
...
function old new delta
packed_usage 33589 33552 -37
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-14 20:47:20 +02:00
Denys Vlasenko
457825f77a
shells: do not allow bare "read" in non-bash compat configs
...
On Sat, Feb 9, 2019 Cristian Ionescu-Idbohrn wrote:
> In my case (at work), I have to watch and prevent people from doing
> unportable things. For me, that's a burden.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-06 12:08:43 +02:00
Denys Vlasenko
f0c0c56e9b
hush: beautify ^D handling to match ash / bash
...
function old new delta
fgetc_interactive 227 244 +17
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-04-13 16:42:17 +02:00
Denys Vlasenko
cbfdeba660
hush: make LINENO selectable without BASH-COMPAT
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-03-10 16:31:05 +01:00
Ron Yorston
cad3fc743a
libbb: introduce and use fputs_stdout
...
function old new delta
fputs_stdout - 12 +12
zxc_vm_process 7237 7230 -7
yes_main 85 78 -7
write_block 380 373 -7
wrapf 305 298 -7
strings_main 437 430 -7
show_bridge 353 346 -7
rev_main 384 377 -7
put_prompt_custom 58 51 -7
put_cur_glyph_and_inc_cursor 168 161 -7
print_numbered_lines 152 145 -7
print_named_ascii 130 123 -7
print_name 135 128 -7
print_login_issue 386 379 -7
print_ascii 208 201 -7
powertop_main 1249 1242 -7
od_main 1789 1782 -7
logread_main 518 511 -7
head_main 804 797 -7
display_process_list 1319 1312 -7
cut_main 1002 995 -7
bb_dump_dump 1550 1543 -7
bb_ask_noecho 393 386 -7
baseNUM_main 702 695 -7
expand_main 755 745 -10
dumpleases_main 497 487 -10
write1 12 - -12
putcsi 37 23 -14
print_login_prompt 55 41 -14
paste_main 525 511 -14
cat_main 440 426 -14
print_it 245 230 -15
print_addrinfo 1188 1171 -17
print_rule 770 750 -20
print_linkinfo 842 822 -20
httpd_main 791 771 -20
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/34 up/down: 12/-341) Total: -329 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-02-03 20:52:40 +01:00
Denys Vlasenko
3b053051c7
hush: code shrink
...
function old new delta
hush_main 1071 1066 -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-5) Total: -5 bytes
text data bss dec hex filename
1020110 559 5020 1025689 fa699 busybox_old
1020037 559 5020 1025616 fa650 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-01-04 03:05:34 +01:00
Denys Vlasenko
3c13da3dab
libbb: introduce and use xgettimeofday(), do not truncate 64-bit time_t in shells
...
function old new delta
xgettimeofday - 11 +11
get_local_var_value 280 281 +1
svlogd_main 1323 1322 -1
change_epoch 67 66 -1
timestamp_and_log 461 458 -3
hwclock_main 301 298 -3
fmt_time_bernstein_25 135 132 -3
step_time 331 326 -5
script_main 1207 1202 -5
machtime 34 28 -6
curtime 61 54 -7
ts_main 423 415 -8
nmeter_main 761 751 -10
gettime1900d 67 46 -21
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/12 up/down: 12/-73) Total: -61 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-30 23:48:01 +01:00
Denys Vlasenko
77a51a2709
randomconfig fixes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-29 16:53:11 +01:00
Denys Vlasenko
c7ef818768
hush: make comment more clear
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-27 16:04:54 +01:00
Denys Vlasenko
1237d627e9
hush: fix this case: echo "SCRIPT" | hush
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-25 19:01:49 +01:00
Denys Vlasenko
46a71dc30c
hush: if !EDITING, do not regenerate prompt for every input char
...
function old new delta
fgetc_interactive 261 258 -3
pseudo_exec_argv 406 399 -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10) Total: -10 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-25 18:49:29 +01:00
Denys Vlasenko
521220ed1a
hush: fix ^C in INTERACTIVE, !EDITING config
...
function old new delta
refill_HFILE_and_getc 88 170 +82
fgetc_interactive 226 250 +24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 106/0) Total: 106 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-23 23:44:55 +01:00
