Denys Vlasenko
d8bd7012a3
hush: fix "export PS1=xyz" and "local PS1=xyz" messing up prompt
...
function old new delta
helper_export_local 215 253 +38
leave_var_nest_level 107 127 +20
run_pipe 1840 1857 +17
handle_changed_special_names 101 105 +4
shell_builtin_read 1399 1398 -1
done_word 767 766 -1
parse_stream 2249 2245 -4
set_local_var 437 430 -7
is_well_formed_var_name 66 - -66
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 4/4 up/down: 79/-79) Total: 0 bytes
text data bss dec hex filename
952376 485 7296 960157 ea69d busybox_old
952400 485 7296 960181 ea6b5 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-14 18:56:04 +02:00
Denys Vlasenko
1c356948f1
httpd: use full size of iobuf[] when piping CGI data
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-19 14:19:41 +02:00
Ron Yorston
a81700bc08
hush: add bash-compatible EPOCH variables
...
Bash 5.0 added the dynamic variable EPOCHSECONDS and EPOCHREALTIME
which return the number of seconds since the Unix Epoch as an
integer or float. These are useful for logging or tracing.
function old new delta
get_local_var_value 207 302 +95
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 95/0) Total: 95 bytes
text data bss dec hex filename
938702 4203 1888 944793 e6a99 busybox_old
938797 4203 1888 944888 e6af8 busybox_unstripped
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-16 18:29:52 +02:00
Denys Vlasenko
e6f51ac697
hush: fix "wait -n" to wait for a _job_, not a _process_
...
function old new delta
checkjobs 163 183 +20
process_wait_result 449 463 +14
leave_var_nest_level 98 107 +9
enter_var_nest_level 32 38 +6
set_vars_and_save_old 147 150 +3
builtin_local 53 56 +3
builtin_wait 322 323 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/0 up/down: 56/0) Total: 56 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-27 18:35:19 +01:00
Denys Vlasenko
4d1c5149a0
hush: add "wait -n" bashism
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-26 18:34:06 +01:00
Denys Vlasenko
b097a84d62
config: update size information
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-28 03:20:17 +01:00
Denys Vlasenko
3d27d435db
randomconfig fixes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-27 18:03:20 +01:00
Denys Vlasenko
b437df1157
inetd: suppress aliasing warning
...
function old new delta
sigprocmask2 - 8 +8
wait_for_child_or_signal 213 218 +5
dowait 424 429 +5
block_CHLD_HUP_ALRM 62 59 -3
sigprocmask_SIG_SETMASK 16 - -16
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 2/1 up/down: 18/-19) Total: -1 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-08 15:35:24 +01:00
Denys Vlasenko
136fe9bede
suppress gcc 8 aliasing warnings
...
function old new delta
sigprocmask_SIG_SETMASK - 16 +16
wait_for_child_or_signal 221 213 -8
dowait 432 424 -8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-08 13:49:15 +01:00
Ron Yorston
71df2d3589
hush: allow hush to run embedded scripts
...
Embedded scripts require a shell to be present in the BusyBox
binary. Allow either ash or hush to be used for this purpose.
If both are enabled ash takes precedence.
The size of the binary is unchanged in the default configuration:
both ash and hush are present but support for embedded scripts
isn't compiled into hush.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-11-27 16:13:07 +01:00
Ron Yorston
060f0a050a
hush: correct description for HUSH_TICK config option
...
The HUSH_TICK configuration option enables command substitution,
not process substitution.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-11-14 11:35:58 +01:00
Denys Vlasenko
c97df2939e
hush: tweak comment, no code changes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-08-14 11:04:58 +02:00
Denys Vlasenko
4bf0854248
hush: add a comment on how globbing (should) work
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-08-11 18:44:11 +02:00
Denys Vlasenko
19358cc313
ash,hush: fold shell_builtin_read() way-too-many params into a struct param
...
function old new delta
getoptscmd 587 584 -3
readcmd 240 224 -16
shell_builtin_read 1426 1399 -27
builtin_read 210 182 -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-74) Total: -74 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-08-05 18:11:15 +02:00
Denys Vlasenko
fd6f295a98
hush: set IFS to default on startup
...
function old new delta
hush_main 1095 1110 +15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-08-05 18:11:15 +02:00
Denys Vlasenko
e9dccab9f4
hush: fix fallout from FILE->HFILE conversion
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-08-05 18:11:15 +02:00
Denys Vlasenko
c2aa218f23
ash,hush: properly handle ${v//pattern/repl} if pattern starts with /
...
Closes 2695
function old new delta
parse_dollar 762 790 +28
subevalvar 1258 1267 +9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 37/0) Total: 37 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-08-04 22:25:28 +02:00
Denys Vlasenko
54fdabda3b
hush: speed up ${var:+ARG} for literal ARGs
...
function old new delta
first_special_char_in_vararg - 52 +52
expand_one_var 2248 2296 +48
encode_then_expand_vararg 357 336 -21
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 100/-21) Total: 79 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-31 10:36:29 +02:00
Denys Vlasenko
a5db1d7354
hush: fix another case where empty "for" wasn't setting exitcode to 0
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-28 12:42:08 +02:00
Denys Vlasenko
a8e7441176
hush: disable debug_indent increment/decrement for HUSH_DEBUG < 2 builds
...
function old new delta
run_list 1063 1046 -17
parse_stream 2296 2249 -47
run_pipe 1890 1840 -50
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-114) Total: -114 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-28 12:16:30 +02:00
Denys Vlasenko
aa449c927d
hush: make "set -x" output don't redirectable when fd#2 redirected
...
function old new delta
x_mode_print_optionally_squoted - 120 +120
x_mode_flush - 68 +68
save_fd_on_redirect 208 243 +35
x_mode_prefix - 27 +27
x_mode_addblock - 23 +23
x_mode_addchr - 17 +17
dump_cmd_in_x_mode 110 85 -25
run_pipe 1919 1890 -29
print_optionally_squoted 145 - -145
------------------------------------------------------------------------------
(add/remove: 5/1 grow/shrink: 1/2 up/down: 290/-199) Total: 91 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-28 12:13:58 +02:00
Denys Vlasenko
4b70c926bc
hush: make "set -x" output closer to bash
...
function old new delta
print_optionally_squoted - 145 +145
run_pipe 1902 1919 +17
dump_cmd_in_x_mode 142 110 -32
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 162/-32) Total: 130 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-27 17:43:39 +02:00
Denys Vlasenko
9dda9270df
hush: fix "set -x" output prefix overlapping for v="..cmd.." case
...
Was printing initial "+" prefix for the assignment, that printing
"+ cmd"
then printing the expanded " v=VAL" string.
Delay printing of "+" prefix for the assignment to after expansion.
function old new delta
run_pipe 1883 1902 +19
builtin_eval 127 133 +6
expand_vars_to_list 1103 1106 +3
dump_cmd_in_x_mode 144 142 -2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 28/-2) Total: 26 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-27 14:12:05 +02:00
Denys Vlasenko
186cf49767
hush: in some cases, expand_on_ifs() relied of uninitialized memory
...
The n > 0 check to prevent access to the last byte of non-existing argv[-1]
wasn't enough. Switched to making sure there are initialized (zero) bytes there.
A predictable testcase is rather hard to construct, unfortunately,
contents of memory depends on allocator behavior and whatnot.
function old new delta
o_save_ptr_helper 119 137 +18
expand_on_ifs 345 339 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 18/-6) Total: 12 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-27 12:14:39 +02:00
Denys Vlasenko
7c5f18a3ba
hush: improve set -x: make "+++" indent level increase in cmd and eval.
...
function old new delta
dump_cmd_in_x_mode 126 144 +18
run_pipe 1873 1883 +10
builtin_eval 119 127 +8
expand_vars_to_list 1100 1103 +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 39/0) Total: 39 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-26 15:21:50 +02:00
Denys Vlasenko
945e9b05c9
hush: fix/explain corner cases of redirection colliding with script fd
...
function old new delta
save_fd_on_redirect 200 208 +8
run_pipe 1870 1873 +3
setup_redirects 321 322 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 12/0) Total: 12 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-24 18:01:22 +02:00
Denys Vlasenko
41ef41b3e0
hush: fix nested redirects colliding with script fds
...
This necessitates switch from libc FILE api to a simple
homegrown replacement.
The change which fixes the bug here is the deleting of
restore_redirected_FILEs();
line. It was prematurely moving (restoring) script fd#3.
The fix is: we don't even _want_ to restore scrit fds,
we are perfectly fine with them being moved.
The only reason we tried to restore them is that FILE api
did not allow moving of FILE->fd.
function old new delta
refill_HFILE_and_getc - 93 +93
hfopen - 90 +90
hfclose - 66 +66
pseudo_exec_argv 591 597 +6
hush_main 1089 1095 +6
builtin_source 209 214 +5
save_fd_on_redirect 197 200 +3
setup_redirects 320 321 +1
fgetc_interactive 235 236 +1
i_peek_and_eat_bkslash_nl 99 97 -2
expand_vars_to_list 1103 1100 -3
restore_redirects 99 52 -47
fclose_and_forget 57 - -57
remember_FILE 63 - -63
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 6/3 up/down: 271/-172) Total: 99 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-24 16:54:41 +02:00
Denys Vlasenko
dfc7394763
hush: handle backslash-newline in heredoc terminators
...
function old new delta
fetch_heredocs 479 527 +48
(ash fails this test)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-24 14:03:18 +02:00
Denys Vlasenko
474cb20555
hush: fix handling of heredocs not enclosed in groups where they are "declared"
...
function old new delta
fetch_heredocs - 479 +479
parse_and_run_stream 146 148 +2
parse_stream 2787 2296 -491
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 481/-491) Total: -10 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-24 13:03:03 +02:00
Denys Vlasenko
3675c37b9b
hush: fix heredoc handling in the "cmd <<EOF ;<newline>" case
...
function old new delta
parse_stream 2759 2787 +28
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-23 16:31:21 +02:00
Denys Vlasenko
d73cdbf84c
hush: fix handling of heredocs starting with empty lines
...
function old new delta
parse_stream 2748 2759 +11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-23 15:43:57 +02:00
Denys Vlasenko
f36caa4071
hush: never glob result of dquoted "${v:+/bin/c*}"
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 19:29:41 +02:00
Denys Vlasenko
4c3c8a1a61
hush: tidy up code after previous commits
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 19:11:09 +02:00
Denys Vlasenko
1856740ec0
hush: better names for o_free_unsafe() / o_free(), no logic changes
...
o_free() made o_string NULL-initialized,
o_free_unsafe() did not bother reinitializing (expected caller to not need it).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 17:51:31 +02:00
Denys Vlasenko
83e434d5b5
hush: fix handling of '' in ${var:+ARG}
...
This wasn't an ash bug in dollar_altvalue9, it was hush bug (and bash!)
function old new delta
expand_one_var 2236 2254 +18
expand_vars_to_list 1097 1103 +6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 24/0) Total: 24 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 17:36:06 +02:00
Denys Vlasenko
294eb4612c
hush: fix word splitting in ${v:+ARG} - dollar_altvalue1 test
...
ash might be a bit buggy, need to investigate dollar_altvalue9 test
function old new delta
expand_one_var 1639 2236 +597
expand_variables 112 128 +16
expand_vars_to_list 1117 1097 -20
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 613/-20) Total: 593 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 16:29:43 +02:00
Denys Vlasenko
57235beb69
hush: expand_vars_to_list() should not assume it starts new word
...
function old new delta
expand_variables 112 115 +3
expand_vars_to_list 1117 1108 -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 3/-9) Total: -6 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 16:27:26 +02:00
Denys Vlasenko
18e8b61292
hush: remove pointless "next" var, simplify expand_vars_to_list()
...
function old new delta
o_addstr - 26 +26
expand_vars_to_list 1112 1117 +5
encode_then_expand_vararg 398 382 -16
parse_dollar 779 762 -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/2 up/down: 31/-33) Total: -2 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 16:27:26 +02:00
Denys Vlasenko
168579a34c
hush: store "ended_in_ifs" flag in o_string
...
This simplifies function parameter passing.
function old new delta
expand_one_var 1643 1639 -4
append_str_maybe_ifs_split 64 52 -12
expand_vars_to_list 1125 1112 -13
expand_on_ifs 361 345 -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-45) Total: -45 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 16:27:26 +02:00
Denys Vlasenko
8a6a461504
hush: propagate (output,n) parameters into expand_one_var()
...
This is necessary since expand_one_var() for ${var:+ARG} must create more than one
output word, and thus can't simply return a char*.
function old new delta
expand_one_var 1610 1643 +33
expand_vars_to_list 1139 1125 -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 33/-14) Total: 19 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 16:27:26 +02:00
Denys Vlasenko
116b50a5c1
hush: make expand_vars_to_list() a bit more sane
...
function old new delta
append_str_maybe_ifs_split - 64 +64
expand_vars_to_list 1167 1139 -28
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 64/-28) Total: 36 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-20 16:27:26 +02:00
Denys Vlasenko
e36a5894bd
hush: reduce indentation, no code changes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-18 16:12:23 +02:00
Denys Vlasenko
2e71101e31
hush: fix 'x=; echo ${x:-"$@"}' producing 'BUG in varexp2' message
...
function old new delta
expand_string_to_string 126 128 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-18 16:02:25 +02:00
Denys Vlasenko
8b08d5a502
hush: smaller code to set o_string to ""
...
function old new delta
encode_then_expand_vararg 399 398 -1
parse_stream 2753 2748 -5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-18 15:50:04 +02:00
Denys Vlasenko
4c201c00a3
whitespace fixes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-17 15:04:17 +02:00
Denys Vlasenko
0d2e0de42b
hush: faster/smaller code to check for presense of multiple chars in string
...
Go over the string only once.
function old new delta
encode_then_expand_string 126 105 -21
encode_then_expand_vararg 443 399 -44
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-65) Total: -65 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-17 14:33:19 +02:00
Denys Vlasenko
b762c784ca
hush: improve ${var#...}, ${var:+...} and ${var/.../...} - handle quoting
...
dollar_altvalue1 test partially fails: word splitting of unquoted ${var:+...}
is not correct
function old new delta
encode_then_expand_vararg - 443 +443
expand_one_var 1599 1610 +11
parse_stream 2756 2753 -3
encode_string 250 242 -8
setup_heredoc 308 298 -10
expand_and_evaluate_arith 106 96 -10
encode_then_expand_string 142 126 -16
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/5 up/down: 454/-47) Total: 407 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-17 14:21:38 +02:00
Denys Vlasenko
b0441a7189
hush: shrink code in builtin_eval
...
function old new delta
builtin_eval 126 119 -7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-07-15 18:03:56 +02:00
Denys Vlasenko
35a017c0c5
hush: unset_local_var_len is only used by unset_local_var
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-26 18:27:54 +02:00
Denys Vlasenko
b2b14cbd4c
hush: fix compile problem found by randomconfig
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-26 18:09:22 +02:00
Denys Vlasenko
d1a83234c0
hush: fix dup_CLOEXEC() call without "avoid_fd" parameter
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-26 15:50:33 +02:00
Denys Vlasenko
c96bb2c5ab
hush: fix for !ENABLE_HUSH_MODE_X configuration
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-26 15:43:56 +02:00
Denys Vlasenko
99496dc716
hush: variable nesting code is used also if HUSH_FUNCTIONS is not enabled
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-26 15:36:58 +02:00
Denys Vlasenko
817a20296f
randomconfig fixes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-26 15:35:17 +02:00
Denys Vlasenko
f693b606b7
hush: fix recent breakage from parse_stream() changes
...
function old new delta
parse_stream 3808 3821 +13
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-11 20:00:43 +02:00
Denys Vlasenko
9678636911
hush: IFS fixes
...
$ IFS=": "; x=" "; set x $x; for v; do echo "|$v|"; done
|x|
$ IFS=": "; x=":"; set x $x; for v; do echo "|$v|"; done
|x|
||
function old new delta
run_pipe 1789 1870 +81
expand_on_ifs 310 361 +51
pseudo_exec_argv 588 591 +3
builtin_local 50 53 +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 138/0) Total: 138 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-11 16:02:58 +02:00
Denys Vlasenko
34179956f9
hush: fix "$v" expansion in case patterns when v='[a]'
...
function old new delta
run_list 1053 1063 +10
setup_redirects 311 320 +9
encode_then_expand_string 135 142 +7
run_pipe 1784 1789 +5
expand_assignments 81 86 +5
expand_string_to_string 124 125 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/0 up/down: 37/0) Total: 37 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-11 13:47:59 +02:00
Denys Vlasenko
0403bedccc
hush: optimize parse_stream()
...
Since we check for '\' anyway when we determine whether we can look ahead,
we can just check for *and handle* it there.
function old new delta
parse_stream 2751 2740 -11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-11 01:34:46 +02:00
Denys Vlasenko
89e9d5534d
hush: do not drop backslash from eval 'echo ok\'
...
newer bash does not drop it, most other shells too
function old new delta
unbackslash 39 57 +18
parse_stream 2753 2751 -2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 18/-2) Total: 16 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-11 01:15:33 +02:00
Denys Vlasenko
3632cb15f1
shell: add comments about [[, no code changes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-10 15:25:41 +02:00
Denys Vlasenko
4709df0f15
hush: fix handling of \<eof> in double-quoted strings
...
function old new delta
encode_string 268 250 -18
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-10 14:49:01 +02:00
Denys Vlasenko
bcf56114fa
hush: fix eval 'echo ok\'
...
function old new delta
parse_stream 2762 2753 -9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-10 14:40:23 +02:00
Denys Vlasenko
92a930b4e8
hush: simplify \<newline> code, part 3
...
function old new delta
parse_stream 2780 2762 -18
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-10 14:27:08 +02:00
Denys Vlasenko
e8b1bc0481
hush: simplify \<newline> code, part 2
...
function old new delta
parse_stream 2787 2780 -7
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-10 14:23:49 +02:00
Denys Vlasenko
1c57269b5d
hush: simplify \<newline> code, part 1
...
function old new delta
parse_stream 2919 2787 -132
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-10 14:23:49 +02:00
Denys Vlasenko
09b7a7ec0e
hush: put "current word" structure into parsing context
...
function old new delta
done_word 790 767 -23
parse_stream 3018 2919 -99
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-122) Total: -122 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-10 03:22:10 +02:00
Denys Vlasenko
9db344a0f4
hush: fix var_leaks.tests and var_preserved.tests on NOMMU
...
function old new delta
remove_nested_vars - 77 +77
run_pipe 1756 1786 +30
pseudo_exec_argv 376 379 +3
leave_var_nest_level 98 32 -66
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 110/-66) Total: 44 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-09 19:05:11 +02:00
Denys Vlasenko
eb0de05d68
hush: fix func_return2.tests on NOMMU
...
function old new delta
hush_main 1714 1718 +4
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-09 17:54:07 +02:00
Denys Vlasenko
8d6eab3225
hush: fix prompt in multi-line $(())
...
Now shows PS2 in this case:
/path/to/dir $ a=b; echo $((
> _
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-07 17:01:31 +02:00
Denys Vlasenko
f5018dac21
hush: fix "unset PS1/PS2", and put them into initial variable set
...
"unset PS1/PS2" causes prompts to be empty strings
function old new delta
hush_main 1031 1089 +58
goto_new_line 27 33 +6
fgetc_interactive 244 245 +1
unset_local_var 155 149 -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 65/-6) Total: 59 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-06 17:58:21 +02:00
Denys Vlasenko
00bd76728d
hush: if we did match "LINENO" or "OPTIND", stop further comparisons
...
function old new delta
handle_changed_special_names 99 101 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-06 14:57:53 +02:00
Denys Vlasenko
cf079ffe1c
hush: consolidate handling of setting/unsetting of PSn, LINENO, OPTIND
...
function old new delta
handle_changed_special_names - 99 +99
unset_local_var 256 155 -101
set_local_var 557 437 -120
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 99/-221) Total: -122 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-06 14:50:12 +02:00
Denys Vlasenko
de02625985
hush: update to correctly handle changed var_bash[346].tests
...
function old new delta
expand_one_var 1612 1604 -8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 17:04:53 +02:00
Denys Vlasenko
f2ed39b930
hush: implement "hush -s"
...
function old new delta
hush_main 1015 1031 +16
packed_usage 32757 32745 -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 16/-12) Total: 4 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 16:46:49 +02:00
Denys Vlasenko
21b7f1b6b6
hush: fix a few more corner cases with empty-expanding cmds
...
See added testcases
function old new delta
run_pipe 1723 1784 +61
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 15:15:53 +02:00
Denys Vlasenko
41d8f10813
hush: fix corner cases with exec in empty expansions
...
Cases like these:
var=val exec >redir
var=val `` >redir
function old new delta
run_pipe 1701 1723 +22
redirect_and_varexp_helper 56 55 -1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 22/-1) Total: 21 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 14:41:21 +02:00
Denys Vlasenko
929a41d577
hush: less mind-bending set_vars_and_save_old()
...
function old new delta
run_pipe 1651 1701 +50
set_local_var 510 557 +47
pseudo_exec_argv 544 581 +37
redirect_and_varexp_helper 64 56 -8
set_vars_and_save_old 164 149 -15
unset_local_var 274 256 -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/3 up/down: 134/-41) Total: 93 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 14:09:14 +02:00
Denys Vlasenko
4e1dc539e9
hush: "no logic changes" in last commit was not true, fix it up
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 13:10:34 +02:00
Denys Vlasenko
34f6b12330
hush: make run_pipe code simpler to understand, no logic changes
...
function old new delta
run_pipe 1641 1651 +10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 11:30:17 +02:00
Denys Vlasenko
d358b0b65d
hush: fix a bug where we don't properly handle f() { a=A; b=B; }; a= f
...
function old new delta
unset_local_var 20 274 +254
leave_var_nest_level - 98 +98
set_vars_and_save_old 128 164 +36
enter_var_nest_level - 32 +32
builtin_local 46 50 +4
pseudo_exec_argv 554 544 -10
redirect_and_varexp_helper 77 64 -13
run_pipe 1890 1641 -249
unset_local_var_len 267 - -267
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/3 up/down: 424/-539) Total: -115 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 00:51:55 +02:00
Denys Vlasenko
332e4115c9
hush: make var nesting code independent of "local" support
...
Also, add code to abort at ~65000 function recursion depth.
SEGVing is not as nice as exiting with a message (and restoring termios!):
$ f() { echo -n .; f; }; f
....<many dots later>....hush: fatal recursion (depth 65281)
function old new delta
run_pipe 1826 1890 +64
pseudo_exec_argv 544 554 +10
parse_and_run_file 71 80 +9
i_getch 104 107 +3
done_command 99 102 +3
set_local_var 508 510 +2
helper_export_local 214 215 +1
builtin_local 49 46 -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/1 up/down: 92/-3) Total: 89 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-04 22:35:13 +02:00
Denys Vlasenko
61407807ab
hush: fix for readonly vars in "ro=A ro=B cmd" case
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-04 21:14:28 +02:00
Denys Vlasenko
fbf44854a3
hush: support "f() (cmd)" functions
...
Many other shells support this construct
function old new delta
parse_stream 2950 3018 +68
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-03 14:56:52 +02:00
Denys Vlasenko
49015a60cb
hush: fix mishandling of "true | f() { echo QWE; }"
...
function old new delta
run_pipe 1820 1826 +6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-03 13:02:43 +02:00
Denys Vlasenko
5fa0505f8a
hush: fix "set -e; false || x=1; echo OK"
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-03 11:21:13 +02:00
Denys Vlasenko
11752d46d1
hush: one-word, no-globbing handling of local/export/readonly args
...
function old new delta
done_word 738 790 +52
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-03 08:20:58 +02:00
Denys Vlasenko
abf755615e
hush: fix a backslash-removal bug in case
...
function old new delta
run_list 1270 1053 -217
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-02 17:25:18 +02:00
Denys Vlasenko
8b536eb40d
hush: remove stray debugging printout
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-02 13:26:16 +02:00
Denys Vlasenko
e84212f834
hush: update information comment about heredoc discrepancy
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-01 20:11:23 +02:00
Denys Vlasenko
899ae5337a
libbb: new function bb_die_memory_exhausted
...
function old new delta
bb_die_memory_exhausted - 10 +10
xstrdup 28 23 -5
xsetenv 27 22 -5
xrealloc 32 27 -5
xputenv 22 17 -5
xmalloc 30 25 -5
xfdopen_helper 40 35 -5
xasprintf 44 39 -5
wget_main 2387 2382 -5
open_socket 54 49 -5
glob_brace 419 414 -5
bb_get_chunk_from_file 146 141 -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/11 up/down: 10/-55) Total: -45 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-01 19:59:37 +02:00
Denys Vlasenko
bb6f573ad2
hush: add a comment where we differ from bash wrt heredoc EOF mark handling
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-01 18:55:00 +02:00
Denys Vlasenko
1e5111b0f8
ash,hush: handle a few more bkslash-newline cases
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-01 03:04:55 +02:00
Denys Vlasenko
a94eeb0b42
hush: fix heredoc_bkslash_newline1.tests failure
...
function old new delta
parse_stream 2787 2827 +40
builtin_type 117 115 -2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-31 20:16:31 +02:00
Denys Vlasenko
6ffaa00338
hush: fix a signedness bug
...
Testcase:
set -- a ""; space=" "; printf "<%s>\n" "$@"$space
Before:
<a >
After:
<a>
<>
It usually does not bite since bbox forces -funsigned-char build.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-31 00:48:18 +02:00
Denys Vlasenko
d1b845706d
hush: add a FIXME comment
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-28 18:42:54 +02:00
Denys Vlasenko
9acd63c92c
ash,hush: fix "saved" redirected fds still visible in children
...
Based on a patch by Mark Marshall <mark.marshall@omicronenergy.com>
function old new delta
dup_CLOEXEC - 49 +49
fcntl_F_DUPFD 46 - -46
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-28 18:35:07 +02:00
Denys Vlasenko
33f7c8f200
hush: code shrink
...
function old new delta
run_pipe 1589 1591 +2
pseudo_exec_argv 374 375 +1
builtin_type 114 115 +1
find_function 8 - -8
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 3/0 up/down: 4/-8) Total: -4 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-06 17:21:57 +01:00
Denys Vlasenko
d4802c6243
hush: fix a='a\\'; echo "${a%\\\\}"
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-02 20:48:36 +01:00
Denys Vlasenko
55f8133a4f
shell: tweak bkslash_in_varexp.tests, add bkslash_in_varexp1.tests
...
It turns out bkslash_in_varexp.tests was a bash bug :]
ash and hush fail "corrected" bkslash_in_varexp.tests as well,
just not as badly as I thought (hush gets half of the cases right).
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-02 18:12:12 +01:00
Denys Vlasenko
aa617ac097
hush: simplify process_command_subs()
...
Incidentally, this fixes LINENO bug here:
echo "1:${LINENO}"
echo "2:`echo; echo`" # was counting lines in the `cmd` output as LINENO++
echo "3:${LINENO}"
function old new delta
parse_and_run_file 53 71 +18
expand_vars_to_list 1187 1164 -23
setup_file_in_str 25 - -25
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/1 up/down: 18/-48) Total: -30 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-02-13 15:31:19 +01:00
