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2015-07-19libbb: add a function to make a copy of a region of memoryRon Yorston
Introduce a library routine to package the idiom: p = xmalloc(b, n); memcpy(p, b, n); and use it where possible. The example in traceroute used xzalloc but it didn't need to. function old new delta xmemdup - 32 +32 last_main 834 826 -8 make_device 2321 2311 -10 common_traceroute_main 3698 3685 -13 readtoken1 3182 3168 -14 procps_scan 1222 1206 -16 forkchild 655 638 -17 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/6 up/down: 32/-78) Total: -46 bytes Signed-off-by: Ron Yorston <rmy@frippery.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-07-13ash: use alloca to get rid of setjmpRon Yorston
Now that the only thing protected by setjmp/longjmp is the saved string, we can allocate it on the stack to get rid of the jump. Based on commit bd35d8e from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu. function old new delta readtoken1 3182 3116 -66 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-66) Total: -66 bytes Signed-off-by: Ron Yorston <rmy@frippery.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-07-13ash: remove parsebackquote flagRon Yorston
Commit 503a0b8 from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu says: >The parsebackquote flag is only used in a test where it always has the >value zero. So we can remove it altogether. The first statement is incorrect: parsebackquote is non-zero when backquotes (as opposed to $(...)) are used for command substitution. It is possible for the test to be executed with parsebackquote != 0 in that case. The test is question checks whether quotes have been closed, raising the error "unterminated quoted string" if they haven't. There seems to be no good reason to allow unclosed quotes within backquotes. Bash, hush and dash (after commit 503a0b8) all treat the following as an error: XX=`"pwd` whereas BusyBox ash doesn't. It just ignores the unclosed quote and executes pwd. So, parsebackquote should be removed but not for the reason stated. function old new delta parsebackquote 1 - -1 readtoken1 3222 3182 -40 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-41) Total: -41 bytes Signed-off-by: Ron Yorston <rmy@frippery.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-07-13Removes stray empty line from codeManinder Singh
This patch removes stray empty line from busybox code reported by script find_stray_empty_lines Signed-off-by: Maninder Singh <maninder1.s@samsung.com> Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-18ash: fix breakage of ${v/pat/str}Ron Yorston
The commit ash: move parse-time quote flag detection to run-time breaks pattern substitution in parameter expansion. Fix this and revise the code so that the different handling of the pattern and the replacement string takes place in rmescapes rather than the separate function parse_sub_pattern. function old new delta rmescapes 227 273 +46 static.qchars 3 4 +1 subevalvar 1177 1157 -20 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 47/-20) Total: 27 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-18ash: move parse-time quote flag detection to run-timeRon Yorston
Because the parser does not recursively parse parameter expansion with respect to quotes, we can't accurately determine quote status at parse time. This patch works around this by moving the quote detection to run-time where we do interpret it recursively. Test case: foo=\\ echo "<${foo#[\\]}>" Old result: <\> New result: <> Do not quote back slashes in parameter expansions outside quotes. Test case: a=/b/c/* b=\\ echo ${a%$b*} Old result: /b/c/* New result: /b/c/ Based on commits 880d952, 7cfd8be, 0d7d660 and a7c21a6 from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu function old new delta argstr 1164 1193 +29 memtodest 147 174 +27 subevalvar 1153 1177 +24 redirect 1279 1282 +3 dolatstr 5 7 +2 static.spclchars 10 9 -1 expandarg 962 960 -2 evalcase 273 271 -2 evalcommand 1204 1197 -7 rmescapes 236 227 -9 preglob 27 8 -19 evalvar 604 582 -22 cmdputs 389 334 -55 readtoken1 3163 3061 -102 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/9 up/down: 85/-219) Total: -134 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-18ash: remove arithmetic expansion collapsing at parse timeRon Yorston
Collapsing arithmetic expansion is incorrect when the inner arithmetic expansion is a part of a parameter expansion. Test case: unset a echo $((3 + ${a:=$((4 + 5))})) echo $a Old result: 12 (4 + 5) New result: 12 9 Based on commit bb777a6 from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu function old new delta readtoken1 3180 3163 -17 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-18ash: remove superfluous code in arithmetic modeRon Yorston
Based on commits 1a74845, cfc3d6a and ff13779 from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu function old new delta evalcommand 1197 1204 +7 localcmd 327 325 -2 readtoken1 3200 3180 -20 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 7/-22) Total: -15 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-18ash: do not expand tilde in parameter expansion within quotesRon Yorston
Test case: unset a echo "${a:-~root}" Old result: /root New result: ~root Based on commit 170f44d from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu function old new delta evalvar 598 604 +6 parse_command 1440 1443 +3 localcmd 325 327 +2 readtoken1 3199 3200 +1 argstr 1180 1164 -16 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/1 up/down: 12/-16) Total: -4 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-18ash: perform tilde expansion in all parameter expansion wordsRon Yorston
Previously tilde expansion was not carried out for =?#% expansion words. Test case: a=~root:~root echo ${a#~root} Old result: /root:/root New result: :/root Based on commit dd721f71 from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu function old new delta subevalvar 1152 1153 +1 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-18ash: code shrink around varvalueRon Yorston
Based on commit c989d72 from git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu function old new delta strtodest - 40 +40 memtodest 123 147 +24 parse_command 1443 1440 -3 readtoken1 3205 3199 -6 argstr 1203 1180 -23 varvalue 788 660 -128 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/4 up/down: 64/-160) Total: -96 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-13ash: explain what "local -" doesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-13ash: consider "local -" case while iterating over local variables in mklocal.Eugene Rudoy
fixes segfault introduced in 0a0acb55db8d7c4dec445573f1b0528d126b9e1f with functions using "local -". test-case: f() { local -; local x; }; f note: with this change applied multiple 'local -'s still cause multiple entries to be added to the localvars list. this problem will be addressed in a separate commit. Signed-off-by: Eugene Rudoy <gene.devel@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-04-20libbb: remove unnecessary argument to nonblock_immune_readRon Yorston
The loop_on_EINTR argument to nonblock_immune_read is always set to 1. function old new delta xmalloc_reads 200 195 -5 pgetc 488 483 -5 argstr 1313 1308 -5 nonblock_immune_read 123 86 -37 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-52) Total: -52 bytes Signed-off-by: Ron Yorston <rmy@tigress.co.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-04-18ash: fix handling of duplicate "local"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-03-22ash: do not split the result of tilde expansionRon Yorston
A tilde expansion generates a valid pathname. Splitting it using IFS either leaves it unchanged or changes it to something unintended. Example: IFS=m HOME=/tmp; printf "%s\n" ~ Based on this commit authored by Jilles Tjoelker: http://git.kernel.org/cgit/utils/dash/dash.git/commit/?id=834629283f6c629a4da05ef60bae9445c954a19a Signed-off-by: Ron Yorston <rmy@tigress.co.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-02-05ash: fix a SEGV case in an invalid heredocDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-12-29ash: fix a SEGV in ${#1}Denys Vlasenko
function old new delta varvalue 760 805 +45 evalvar 648 603 -45 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-11-17ash: fix handling of negative start value in ${v:start:len}Denys Vlasenko
function old new delta subevalvar 1140 1168 +28 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-08ash: fix off-by-one in "jobs %4" handling. closes 7310Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-09-08ash: factor out ASH_HELP config optionDenys Vlasenko
It used to be aliased to !FEATURE_SH_EXTRA_QUIET for ash, while hush had it separate from FEATURE_SH_EXTRA_QUIET. Bring ash in line with hush. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-08-13ash: make ${#var} unicode-awareDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-08-13ash,hush: run reinit_unicode() only if makes senseDenys Vlasenko
With static Unicode support, no need to check $LANG et al. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-22libbb: use a wrapper around sysconf(_SC_CLK_TCK) to save a few bytesBartosz Golaszewski
function old new delta bb_sc_clk_tck - 10 +10 timescmd 118 113 -5 print_route 1763 1758 -5 mpstat_main 1288 1283 -5 iostat_main 1947 1942 -5 INET_setroute 879 871 -8 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/5 up/down: 10/-28) Total: -18 bytes Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-04-15ash,hush: set $HOSTNAME is bash compat. Closes 7028Denys Vlasenko
function old new delta hush_main 1056 1128 +72 ash_main 1442 1487 +45 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-03-16ash: make "locak VAR" unset VAR (bash does that)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-01-07ash: in bash compat mode, always export $SHLVLDenys Vlasenko
function old new delta ash_main 1437 1442 +5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-08ash: Set SHLVL in ASH_BASH_COMPATBernhard Reutner-Fischer
function old new delta ash_main 1456 1505 +49 .rodata 148488 148494 +6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 55/0) Total: 55 bytes Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-11-08ash: Use setvar2 some moreBernhard Reutner-Fischer
(add/remove: 0/0 grow/shrink: 10/15 up/down: 13/-27) Total: -14 bytes Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2013-07-05unicode: check $LC_CTYPE too to detect Unicode modeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-07-02unicode: check $LC_ALL to detect Unicode mode, not only $LANGDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-04-07ash,hush: history builtinFlemming Madsen
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>
2013-03-17ash: add comment about failures in source builtin. No code changes.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-15ash: read $HOME/.profile instead of $(pwd)/.profileStefan Hellermann
ash --login should read ~/.profile instead of .profile in the current directory. I noticed it while trying to figure out why /root/.profile is only read sometimes. function old new delta ash_main 1374 1398 +24 Signed-off-by: Stefan Hellermann <stefan@the2masters.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-15ash: move code to allow setting $HOME in /etc/profileStefan Hellermann
move HISTFILE=$HOME/.ash_history below reading /etc/profile, so that /etc/profile can set $HOME. HOME can be unset when directly invoking ash --login from init without going through getty. Signed-off-by: Stefan Hellermann <stefan@the2masters.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-26move endofname() to libbbDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-17ash: revert wrong "fix" for an apparent memory leak. Closes 5822Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-14whitespace cleanup. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-11-13ash: fix a memory leakJon Tollefson
The script which triggers the leak: while true do while true do break; done</dev/null done Signed-off-by: Jon Tollefson <kniht@linux.vnet.ibm.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-10-01ash: implement export -nDenys Vlasenko
function old new delta exportcmd 129 175 +46 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-09-25ash: trivial fixes for compile failuresDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-09-06ash: fix "read -s" + ^C. Closes 5504Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-07-07ash: add a comment about VEXPORTDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-06-09ash: fix a bug in >${varexp} handling. Closes 5282Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-12-20ash: in standalone mode, search in $PATH if /proc/self/exe doesn't existDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-12-16ash: document bash's exit code too. No code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-12-16ash: add comment about bash's ENOEXEC handling. No code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-04lineedit: add support for history saving on exitDenys Vlasenko
Based on the patch by Dennis Groenen <tj.groenen@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-04lineedit: fix atomic replace of history file; hush: fix $HISTFILE handlingDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-05-08hush: make read builtin interruptible.Denys Vlasenko
function old new delta builtin_read 185 471 +286 check_and_run_traps 200 262 +62 nonblock_immune_read 73 119 +46 sigismember - 44 +44 record_signal - 21 +21 sigisemptyset - 16 +16 ... ------------------------------------------------------------------------------ (add/remove: 5/0 grow/shrink: 7/5 up/down: 483/-46) Total: 437 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 03:23:57 +0000