Commit Graph

152 Commits

Author SHA1 Message Date
tg c7774ae861 Detect (potentially mismatched) ELF files; suggested by enh@google.com 2014-06-24 18:38:31 +00:00
tg 73edeaa8ec fix “set -o pipefail” w/o PIPESTATUS, and PIPESTATUS inside COMSUBs and other sequences 2014-06-10 22:17:10 +00:00
tg 033e1f4b9e fix LP#1277691 (“nameref RHS not syntax checked”) and the inability to
use errorf() while nameref states were being changed (by almost completely
eliminating the global variable) and the readonly first array variable
bypass (typo/refactoro); also, whitespace, one int → bool, and add a
comment wrt. the parser rewrite talked about with igli during a fever ;)
2014-05-27 13:22:46 +00:00
tg c1c0b997fe make the code to exec simple commands also available for mksh_small 2014-01-11 16:26:28 +00:00
tg 89e774fd7e • fix ${12345678901234567890} segfault (OOB access / integer overflow)
‣ not like oksh did, but using mksh’s built-in features
• handle suggested __pure additions
• revert cid 1004F7F096867C83CF0
  ‣ always use our wcwidth code
  ‣ only use our strlcpy code if none found
• fix a couple of gcc-snapshot and clang/scan-build warnings
• mksh R49~rc1
2014-01-05 21:57:29 +00:00
tg f920d94785 add O_BINARY to all open() calls except tty_fd
cf. http://svn.netlabs.org/libc/wiki/Faq#Whydoesntreadfdbufsize_of_filereturnsize_of_file
2013-10-09 11:59:30 +00:00
tg 14667a9838 int → bool; commit as a TODO comment a begun change attempt 2013-09-10 16:30:50 +00:00
tg 4bee63495a simplify 2013-07-21 20:44:44 +00:00
tg ead77623d3 Fix most “set -x” problems (LP#1179287)
• “set -x” manually (cmdline too) snapshots fd#2 now
• “set -o inherit-xtrace” introduced; default still enabled
• reverted iodup printing to pre-R45 behaviour
• made Flag(FXTRACE) a proper state machine
2013-07-21 18:47:24 +00:00
tg bd795a83ae partial merge and full RCS ID sync with oksh
merged:
• new regression tests
• check.pl (tests/th) better tmpfile handling
• exec.c 1.50: POSIX specifies that for an AND/OR list,
  only the last command's exit status matters for "set -e"
• ksh.1 1.147: document the above
• eval.c 1.39: “Make $(< /nonexistent) have the same behaviour
  as $(cat /nonexistent) wrt. errors (do not unwind and do not
  treat this as fatal if set -e is used).”
  ‣ additionally make shf_open() return errno and actually show
    the error message from the system
• regression-39 test: remove the “maybe” marker
  ‣ but decide on correct POSIX behaviour

already been fixed in mksh:
• check.pl (tests/th) exit 1 if tests fail

not merged:
• main.c 1.52: run traps in unwind() before exiting;
  I’m pretty sure this is already working as-should in mksh
• eval.c 1.38: “Commands executed via `foo` or $( bar ) should
  not inherit "set -e" status.” As discussed in IRC, this is
  just plainly WRONG.
2013-07-21 18:36:03 +00:00
tg bb4083d649 use ‘z’ shf printf modifier for out-of-memory message, now that we have it 2013-06-03 22:28:33 +00:00
tg 8256f266ff fix a number of warnings and other issues:
• sig_t detection was a bit insane, it is a function-pointer type after all
• fix uninitialised variable in c_select which led to mistakenly accepting
  invalid (nōn-numeric) input and acting, randomly, upon it
• keep SIGCHLD blocked in child after forking longer, for job list manip
• block SIGCHLD ifdef DEBUG_LEAKS to not run job foo during/after afreeall
• fix annoying ISO C90 vs. C99 (un)signed constant warning
2013-06-02 03:09:17 +00:00
tg deb4a3bf20 Oh well… this looks well, is done done, and gcc-snapshot doesn’t complain:
• correct order of built-in commands; use POSIX special versus “all others”
  plus “keeps assignments” as distinction, no longer play POSIX regular vs.
  others game; sync manpage
• fix LP#1156707: map (( internally to “let]” which is no valid function
  name and so can’t be overridden but is unlikely to be used otherwhere
  and not strictly permitted (by POSIX) anyway
• we do not need -Wno-overflow any more, either
• bump to R45
2013-04-26 21:22:50 +00:00
tg b6f4617dee oops… pasto… restored the wrong backup code…
(I had one that didn’t revert cid 100514E4F1D5C90862C in check.t first…)
2013-04-26 19:47:07 +00:00
tg 5f5393b4f1 and, finally for today, fixup the “set -x” mess I made 2013-04-26 19:40:45 +00:00
tg 4b2e17b828 • let mksh “set -x” print whole TCOM trees
• plug some memory leaks in debug (“set -x”) and warning paths while here
• one from Florian (friend of Natureshadow) for WTF
2013-03-24 00:56:27 +00:00
tg b684a7c6bd backpedal with $'…' and $"…" interpolation
it turns out this breaks more legacy scripts than anticipated
2013-02-17 05:40:17 +00:00
tg ec883318d1 fix too strict fix for LP#1104543 (Debian #700526) 2013-02-15 18:50:14 +00:00
tg fb370a30c6 fix set -e with and/or inside functions regression (LP#1104543)
cause was that use of && or || inside function switched it to xerrok
2013-02-10 23:59:28 +00:00
tg 9111faeeb5 besides more code reuse, fix $'…' everywhere (but keep it ignored in here document bodies that aren’t here strings) 2013-01-19 19:47:13 +00:00
tg 2d9a039ec0 ormaaj reported “command shift” not working correctly; fix 2013-01-06 18:51:43 +00:00
tg 744f77c668 fix running the ERR and EXIT traps in case of set -e and/or eval (includes Debian #696823) 2013-01-01 20:45:04 +00:00
tg 6d5e27a31a gcc-snapshot (see below) issued a clobber warning, and both it and mgcc
yowled about the memmove test until I found a compromise
gcc version 4.8.0 20121120 (experimental) [trunk revision 193662] (Debian 20121120-1)
2012-12-22 00:03:42 +00:00
tg 12c662b6e2 thanks to ISC (Interactive) Unix, we now know a few samples of errnos
that get used, plus one for the realpath-1 regression test; also make
sys_siglist_decl detection nicer and poison strerror() with non-const
return value ifdef DEBUG, make it always const
2012-12-17 23:18:11 +00:00
tg cf807eb83a Add assertions and shuffle code around for LLVM+Clang scan-build. 2012-12-04 01:18:34 +00:00
tg 0f3071a8b2 MKSH_DISABLE_EXPERIMENTAL is a NOP again; use ${ precmd;} in dot.mkshrc 2012-11-30 20:19:16 +00:00
tg 80e364b7ad use proper parenthesēs; int → bool; use same var (eno) for temp. errno 2012-11-30 19:02:10 +00:00
tg 8caee45c60 int → bool 2012-10-30 20:13:20 +00:00
tg 574c024635 introduce MKSH_DISABLE_EXPERIMENTAL and wrap the new feature introduced
in cid 1005084678C510CF7E4 in it
2012-10-22 16:53:22 +00:00
tg 31f24a4040 add some bounds, for a subsequent commit:
• all writers of exstat ensure the value is in [0; 0xFF]
• all readers of exstat AND it with 0xFF (not strictly needed thus)
• trap_exstat is “safe”, i.e. always either -1 or [0; 0xFF]
2012-10-21 21:39:06 +00:00
tg bebb2d2254 EXPERIMENTAL optimisation for “sh -c 'foo'” to equal “sh -c 'exit foo'” iff
several conditions are met as outlined below; for more background, refer to
http://www.FreeBSD.org/cgi/query-pr.cgi?pr=113860

We don’t yet optimise 「% sh -c '{ echo a; sleep 10;}&'; sleep 1; ps T」 so
the FreeBSD® sh approach cannot work for us, but scanning the “sh -c” argu‐
ment for disallowed characters and, if not, setting a flag that enables the
shell to exec the tree when parsed as TCOM *and not c_trap()* was possible.

Disallowed characters are currently C_QUOTE except space, that is:
Tab Newline " # $ & ' ( ) * ; < = > ? [ \ ] ` |

This should catch all cases of magic, variables, subshells, pipelines, etc.
2012-10-21 21:26:41 +00:00
tg d8662eb228 even more hacks to pass “-O666 -fstrict-overflow -Wstrict-overflow=9 -flto=jobserver” with “gcc version 4.8.0 20120930 (experimental) [trunk revision 191865] (Debian 20120930-1)” ☹ plus make the rtchecks mandatory 2012-10-03 17:24:23 +00:00
tg 167995da22 repair choiceless select builtin 2012-10-03 15:13:34 +00:00
tg 10aa532414 these want to be bool, not int
but no idea how to address CID 703483, if it needs to be addressed at all…
2012-06-24 20:05:23 +00:00
tg 5eea59ad57 rewrite maketemp() obsoleting tempnam(3) and mkstemp(3) external deps 2012-04-14 16:07:48 +00:00
tg e67b98e21b use _setjmp/_longjmp on NeXTstep: its Intel port always restores the signal mask on siglongjmp, which we never have 2012-03-31 17:30:00 +00:00
tg 9782f6b4d1 • access(2) is broken in at least kFreeBSD 9.0 as “modern” OS, so bring
back the wrapper code as well as refactor most other code calling it
• apparently, names can’t end in ‘_’ or contain ‘__’ anywhere…
2011-09-07 15:24:22 +00:00
tg 577c918beb patch most of Jerker Bäck’s concerns out, unless not applicable 2011-08-27 18:06:52 +00:00
tg 851f8fb7d8 introduce MKSH_NO_EXTERNAL_CAT skipping the “call /bin/cat if we have an
option” nonsense, intended for Android, Plan 9, and other systems which
honour that cat -v is deemed harmful
2011-07-07 21:24:53 +00:00
tg f2405b7dde • bump patchlevel to today’s
• while here, reformat 'struct tbl' comment-wise and placement-wise
  and drop the Tflag typedef
• while here, write regression test for the "global" built-in, which
  does what typeset is supposed to do except that it doubles as "local"
2011-07-05 20:12:20 +00:00
tg 2cfc3e5c3d mksh R40 Release Candidate 1
Testsuite:
• add new need-pass: {yes|no} attribute, default yes
• exit with 1 if a need-pass test failed unexpectedly
  idea by Kacper Kornet <draenog@pld-linux.org>
• mark utf8bom-2 as need-pass: no
Infrstructure:
• add housekeeping function for making a tty raw
• switch functions with unused results to void
• struct op: u.charflag contains last char of ;; in TPAT
• var.c:arraysearch is now a global function
Language:
• add ;& (fall through) and ;| (examine next) delimiters
  in addition to ;; (end case) as zsh extensions, because
  POSIX standardised on ;& already
• add -A (read into array), -N (read exactly n bytes),
  -n (read up to n bytes), -t (timeout) flags for read
  from ksh93
• allow read -N -1 or -n -1 to slurp the entire input
• add -a (read into array the input characters) extension
  specific to mksh to read, idea by David Korn
• add -e (exit with error if PWD was not set correctly
  after a physical cd) to cd builtin, mandated by next
  POSIX, and change error codes accordingly
Rewrites:
• full rewrite of read builtin and its manpage section
• add regression tetss for most of the new functionality
• duplicate hexdump demo tests for use of read -a
• use read -raN-1 in dot.mkshrc to get NUL safe base64,
  DJB cdb hash and Jenkins one-at-a-time hash functions
2011-05-29 02:18:57 +00:00
tg 40e914e8a5 • fix an inverted logic bug in the test I wrote
• only trigger deleting an alias in favour of a function for “()”, not
  just the opening parenthesis: “stop( )” is not a function definition
  (well, actually it seems to be, but… not according to POSIX, anyway)
• defer dropping the alias until the function is actually defined (õÕ)
2011-05-07 00:51:12 +00:00
tg fb93c5e225 by prodding of wbx@ let functions inherit a global xtrace
(also since all other shells seem to do it, save posh which doesn’t trace‽)
2011-04-17 15:40:35 +00:00
tg 7d3643d7b4 skip the UTF-8 BOM early, then check the magic (ELF, a.out, COFF, …) 2011-04-02 10:30:11 +00:00
tg 2a3d4db123 lint is your friend 2011-03-13 01:20:25 +00:00
tg 0b57abd4d3 • add -u option (POSIX: unbuffered ⇒ nop) to the built-in cat
• PIPESTATUS now supported (like bash 2) whose last member
  may actually differ from $? since the latter may not be the
  result of a pipeline partial command
• add regression tests, documentation, etc.
2011-02-18 22:26:13 +00:00
tg a796512040 • more comment and int→bool cleanup, add and improve some comments
• in interactive mode, always look up {LC_{ALL,CTYPE},LANG} environment
  variables if setlocale/nl_langinfo(CODESET) doesn’t suffice
• add the ability to call any builtin (some don't make sense or wouldn't
  work) directly by analysing argv[0]
• for direct builtin calls, the {LC_{ALL,CTYPE},LANG} environment
  variables determine utf8-mode, even if MKSH_ASSUME_UTF8 was set
• when called as builtin, echo behaves POSIXish
• add domainname as alias for true on MirBSD only, to be able to link it
• sync mksh Makefiles with Build.sh output
• adjust manpage wrt release plans
• link some things to mksh now that we have callable builtins:
  bin/echo bin/kill bin/pwd bin/sleep (exact matches)
  bin/test bin/[ (were scripts before)
  bin/domainname=usr/bin/true usr/bin/false (move to /bin/ now)
• drop linked utilities and, except for echo and kill, their manpages
• adjust instbin and link a few more there as well
2011-02-11 01:18:23 +00:00
tg bdfcdc56c8 introduce MKSH_NOPROSPECTOFWORK which is like pdksh’s JOB_SIGS in reverse, like MKSH_UNEMPLOYED is pdksh’s JOBS in reverse; allows mksh to work (hah! no pun intended…) with klibc (and possibly, Syllable Desktop and Plan 9) for now, until they fix their bugs 2011-01-30 01:35:35 +00:00
tg 230f59d064 New functionality: assign here document to string variable directly,
without cat and temp files. Hacked in Lëtzebuerg ☺

This was the third try. Where to put this was not palpable… same for =(…)
2011-01-09 21:57:29 +00:00
tg 915b30adfe revert part of the “size reduction” diff (zero size change though):
shellf() implies an shf_flush()…
2010-09-15 21:08:19 +00:00