Age | Commit message (Collapse) | Author |
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Since commit 1ff7002b1 (xargs: fix handling of quoted arguments, closes
11441) the -n option hasn't worked properly:
$ echo 1 2 3 | xargs -n 1 echo
1
2
3
$
Because state is now remembered between calls to process_stdin() it's
necessary to update the state before any premature return.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
next_token 808 831 +23
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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As reported in bug 11441 when presented with a large number of quoted
arguments xargs can return 'argument line too long':
seq 10000 29999 | sed -e 's/^/"/' -e 's/$/"/' | busybox xargs echo
This happens because the variant of process_stdin() which handles quoted
arguments doesn't preserve state between calls. If the allowed number
of characters is exceeded part way through a quoted argument the next
call to process_stdin() incorrectly treats the terminating quote as a
starting quote, thus quoting all of the argument separators.
function old new delta
process_stdin 274 303 +29
xargs_main 731 745 +14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 43/0) Total: 43 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
bc_num_cmp 249 259 +10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
xc_program_print 712 735 +23
Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zxc_vm_process 6884 6891 +7
Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This matches the behaviour of both GNU dc (as specified in
its man page), and BSD dc (where stack_popstring() pops
only if the head is a string.)
Add a couple of tests to verify this behavior.
function old new delta
zxc_vm_process 6882 6884 +2
Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
process_files 2235 2246 +11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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We found out that busybox -x -v is a bit broken:
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -e 'aa.*' -e '.*bb.*'
aa bb cc
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -v -e 'aa.*' -e '.*bb.*'
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -e '.*aa.*' -e 'bb.*'
aa bb cc
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -v -e '.*aa.*' -e 'bb.*'
aa bb cc
Last one is wrong.
This patch fixes the issue by making sure that the variable 'found'
never makes a transition from 1 to 0, as this would mean that
grep previously found a match on this input line.
Signed-off-by: Ari Sundholm <ari@tuxera.com>
Signed-off-by: Niko Vähäsarja <niko@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zxc_program_popResultAndCopyToVar 298 493 +195
bc_vec_pushIndex - 75 +75
zxc_vm_process 859 928 +69
xc_program_dereference - 66 +66
bc_vec_npush - 65 +65
zbc_num_s 239 249 +10
zxc_program_num 1024 1032 +8
zbc_num_divmod 150 156 +6
xc_program_search 143 146 +3
zxc_program_assign 392 389 -3
zdc_program_execStr 520 517 -3
xc_program_pushVar 198 195 -3
zxc_program_exec 4101 4092 -9
zbc_program_call 318 308 -10
zbc_func_insert 120 104 -16
zbc_parse_stmt_possibly_auto 1460 1439 -21
bc_vec_push 53 12 -41
xc_parse_pushIndex 61 18 -43
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 6/9 up/down: 497/-149) Total: 348 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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It allows things like 'func f(a b)' and 'func f(a,)' which GNU awk forbids.
function old new delta
parse_program 327 367 +40
chain_expr 40 67 +27
parse_expr 891 915 +24
EMSG_TOO_FEW_ARGS 30 18 -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 91/-12) Total: 79 bytes
Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Unlike exit and return, delete strictly requires an arg, and derefs a
null pointer if executed without one.
Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Avoids an uninit pointer deref for some malformed ternary exprs.
Add a test that would crash in busybox before this fix.
Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This removes DAEMON_DOUBLE_FORK flag from bb_daemonize_or_rexec(),
as SSD was the only user.
Also includes fix for -S: now works without -a and -x,
does not print pids
(compat with "start-stop-daemon (OpenRC) 0.34.11 (Gentoo Linux)").
function old new delta
start_stop_daemon_main 1018 1084 +66
add_interface 99 103 +4
fail_hunk 139 136 -3
bb_daemonize_or_rexec 205 183 -22
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 70/-25) Total: 45 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
xc_program_print - 689 +689
zxc_vm_process 814 869 +55
zxc_program_exec 4098 4116 +18
zxc_program_assign 385 392 +7
bc_result_free 43 46 +3
zxc_program_binOpPrep 243 245 +2
zdc_program_execStr 518 520 +2
zxc_program_print 683 - -683
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 6/0 up/down: 776/-683) Total: 93 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zxc_program_exec 4087 4098 +11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zdc_parse_expr 470 479 +9
zxc_vm_process 839 814 -25
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 9/-25) Total: -16 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_expr 24 1865 +1841
zbc_parse_stmt_possibly_auto 1425 1413 -12
bc_parse_expr_empty_ok 1843 - -1843
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/1 up/down: 1841/-1855) Total: -14 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
static.esc - 9 +9
zxc_program_print 681 683 +2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 11/0) Total: 11 bytes
text data bss dec hex filename
979144 485 7296 986925 f0f2d busybox_old
979062 485 7296 986843 f0edb busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
bc_parse_expr_empty_ok 1764 1843 +79
bc_error_at - 62 +62
bc_parse_inst_isLeaf - 30 +30
zbc_func_insert 100 120 +20
bc_error_bad_function_definition - 10 +10
bc_error_bad_assignment - 10 +10
zxc_lex_next 1608 1614 +6
ok_in_expr 30 - -30
zxc_vm_process 874 839 -35
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 3/1 up/down: 217/-65) Total: 152 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zxc_program_num 995 1018 +23
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zxc_program_num 990 1020 +30
zxc_lex_number 172 202 +30
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 60/0) Total: 60 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zxc_lex_next 1573 1608 +35
xc_parse_pushIndex 58 56 -2
xc_program_index 71 63 -8
zxc_program_num 1022 990 -32
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 35/-42) Total: -7 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
peek_inbuf - 292 +292
parse_lex_by_checking_eq_sign - 26 +26
eat_inbuf - 22 +22
zbc_vm_execute_FILE 52 61 +9
bc_lex_lineComment 29 30 +1
zbc_lex_number 174 172 -2
bc_vm_run 104 99 -5
zbc_num_divmod 156 150 -6
bc_lex_file 24 - -24
bc_lex_assign 26 - -26
zbc_lex_next 1982 1587 -395
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 2/4 up/down: 350/-458) Total: -108 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_lex_next 1965 1979 +14
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_stmt_possibly_auto 1599 1560 -39
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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executing
function old new delta
zbc_program_read - 268 +268
zdc_program_printStream - 146 +146
zbc_program_exec 4046 4182 +136
zdc_program_execStr 472 512 +40
zdc_parse_exprs_until_eof - 26 +26
zbc_vm_process 740 765 +25
zbc_lex_next 2225 2240 +15
zdc_parse_expr 569 535 -34
zbc_program_pushArray 147 - -147
zdc_program_asciify 370 - -370
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 4/1 up/down: 656/-551) Total: 105 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_pushSTR - 65 +65
common_parse_expr - 32 +32
bc_error_nested_read_call 10 - -10
bc_parse_expr_empty_ok 1977 1963 -14
zdc_parse_expr 635 615 -20
zcommon_parse_expr 32 - -32
zbc_program_exec 4064 4023 -41
bc_parse_pushSTR 65 - -65
------------------------------------------------------------------------------
(add/remove: 2/3 grow/shrink: 0/3 up/down: 97/-182) Total: -85 bytes
text data bss dec hex filename
981661 485 7296 989442 f1902 busybox_old
981540 485 7296 989321 f1889 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_stmt_possibly_auto 1665 1697 +32
zbc_vm_process 672 701 +29
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 61/0) Total: 61 bytes
text data bss dec hex filename
981656 485 7296 989437 f18fd busybox_old
981748 485 7296 989529 f1959 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_lex_next 2224 2225 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zdc_parse_expr 656 653 -3
bc_lex_lineComment 39 36 -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-6) Total: -6 bytes
text data bss dec hex filename
981424 485 7296 989205 f1815 busybox_old
981418 485 7296 989199 f180f busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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It is misplaced: caller knows better what can or cannot follow the expression.
Sometimes even caller's caller: "if (1) return a+b else..." -
parser of "return" does not know that "else" after it is valid,
parser of stmt does not know it either, - only parser of
"if" knows it!
The removed code balked on e.g. "{ print 1 }" statement.
This does not break any valid programs, but starts accepting some
invalid ones, e.g. "print 1 print 2" would work.
function old new delta
zcommon_parse_expr 40 32 -8
zbc_parse_name 509 494 -15
zbc_parse_stmt_possibly_auto 1678 1638 -40
bc_parse_expr_empty_ok 2025 1977 -48
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-111) Total: -111 bytes
text data bss dec hex filename
981599 485 7296 989380 f18c4 busybox_old
981488 485 7296 989269 f1855 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_stmt_possibly_auto 1967 1964 -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3) Total: -3 bytes
text data bss dec hex filename
981937 485 7296 989718 f1a16 busybox_old
981934 485 7296 989715 f1a13 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_stmt_possibly_auto 2065 2025 -40
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-40) Total: -40 bytes
text data bss dec hex filename
982035 485 7296 989816 f1a78 busybox_old
981995 485 7296 989776 f1a50 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_stmt_possibly_auto 2106 2065 -41
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-41) Total: -41 bytes
text data bss dec hex filename
982076 485 7296 989857 f1aa1 busybox_old
982035 485 7296 989816 f1a78 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_parse_stmt_possibly_auto 2245 2180 -65
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-65) Total: -65 bytes
text data bss dec hex filename
982237 485 7296 990018 f1b42 busybox_old
982152 485 7296 989933 f1aed busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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While at it, allow newline between "else" and its body
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_vm_process 561 589 +28
zbc_lex_next_and_skip_NLINE - 22 +22
zbc_parse_stmt_possibly_auto 2232 2253 +21
zbc_lex_skip_if_at_NLINE - 14 +14
zbc_lex_number 192 200 +8
zbc_num_divmod 150 156 +6
bc_vm_run 134 139 +5
bc_vm_init 757 760 +3
bc_num_printNewline 51 54 +3
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 7/0 up/down: 110/0) Total: 110 bytes
text data bss dec hex filename
982138 485 7296 989919 f1adf busybox_old
982275 485 7296 990056 f1b68 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
zbc_vm_process 561 597 +36
zbc_parse_stmt_possibly_auto 2232 2253 +21
zbc_lex_number 192 200 +8
zbc_num_divmod 150 156 +6
bc_vm_run 134 139 +5
bc_vm_init 757 760 +3
bc_num_printNewline 51 54 +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/0 up/down: 82/0) Total: 82 bytes
text data bss dec hex filename
982138 485 7296 989919 f1adf busybox_old
982247 485 7296 990028 f1b4c busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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The entire control construct (if/while/for/funcdef) or {} block is
"eaten" by the corresponding parsing function, instead of maintaining
special "block flag stack" with magic bits in it, and returning to main
input loop after every inner statement (every input line, essentially).
This required moving line input deep into lexer - now zbc_lex_next()
triggers more reading when needed.
"block flag stack" is gone.
Correctness of ^C handling wasn't checked, might need fixing now.
if/else syntax is changed to match GNU bc: "else" can not be on
the next line (the rationale is that "if (1) 2" statement in interactive
mode should execute and print 2 instead of waiting for possible
"else ..." line).
This change fixes the following examples:
if (1) if (1) 1 else 2 else 3
if (0) 1 else if (1) 2
define w() { auto z; return 1; }
function old new delta
zbc_parse_stmt_possibly_auto - 2232 +2232
zbc_vm_process 89 561 +472
zbc_lex_next 1982 2296 +314
bc_vm_init 749 757 +8
bc_parse_expr_empty_ok 2016 2021 +5
bc_num_printNewline 54 51 -3
zbc_program_read 289 280 -9
bc_parse_free 47 38 -9
bc_parse_reset 126 113 -13
bc_parse_create 108 92 -16
bc_parse_push_block_flag 47 - -47
bc_parse_noElse 48 - -48
zbc_parse_text_init 113 59 -54
zbc_parse_body 121 - -121
zbc_parse_else 125 - -125
zbc_parse_endBody 254 - -254
bc_vm_run 421 134 -287
zbc_parse_auto 290 - -290
zcommon_parse 476 - -476
zbc_parse_stmt 1682 7 -1675
------------------------------------------------------------------------------
(add/remove: 1/7 grow/shrink: 4/8 up/down: 3031/-3427) Total: -396 bytes
text data bss dec hex filename
982586 485 7296 990367 f1c9f busybox_old
982138 485 7296 989919 f1adf busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
bc_parse_push_block_flag - 47 +47
zbc_parse_body 107 121 +14
zbc_num_divmod 156 150 -6
zbc_lex_number 200 192 -8
zbc_parse_endBody 264 254 -10
bc_parse_startBody 47 - -47
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/3 up/down: 61/-71) Total: -10 bytes
text data bss dec hex filename
982596 485 7296 990377 f1ca9 busybox_old
982586 485 7296 990367 f1c9f busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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