Commit Graph

527 Commits

Author SHA1 Message Date
tg 2d6b4acba1 simplify a bunch of things (no SIGWINCH handler, errno is saved for
an shtrap automatically) and gratitutous reformatting of comments
2010-07-04 13:36:43 +00:00
tg 747b27a846 apply diff from manuel giraud via oksh to keep track of LINENO in a trap 2010-05-22 12:49:16 +00:00
tg f24e2c80a9 disallow some more kinds to trim a vector; Debian #581867 2010-05-16 19:04:42 +00:00
tg 01a0d1104a address two performance issues in do_realpath():
• avoid calling realloc twice in sequence, since the final
  size is known at the first call already
• do not lstat(2) the same path twice in the Hurd codepath
2010-04-27 21:39:09 +00:00
tg 6e98fbe27b Fourth time’s a charm… another bugfix related to the commitids
1004BBDD84556472D84, 1004BBF77B81D30DA7C and 1004BBF7CD656308A1C
to unbreak kwalletcli
2010-04-20 09:10:07 +00:00
tg 14ea7e9038 draft a testcase to understand the problem fixed by cid 1004BBF77B81D30DA7C
and make it actually work: the OpenBSD fix failed since 1004BBDD84556472D84
2010-04-09 19:16:31 +00:00
tg ff9f89f22f Fix two more POSIX conformance bugs and minor documentation/comment issues 2010-04-08 13:21:08 +00:00
tg 401e262689 fix another expand-ugly SUSv4 bug 2010-03-27 16:53:17 +00:00
tg 98e43b0f7a rework ‘m’ and ‘v’ ulimits; add more (seen at zsh) 2010-03-27 16:51:39 +00:00
tg 50f081c369 even better on Haiku:
* let ulimits work
* add a Haiku-specific ulimit
* always use UTF-8, they have no locales but a UTF-8 terminal
2010-03-14 11:58:33 +00:00
tg e5e6857c43 (hopefully) fix the substitution thing for good 2010-02-25 20:18:19 +00:00
tg 150a35a02d x_bind cannot have the nonnull attribute
cought by Frank “enstein” Terbeck «ft:#grml» (efftee), 10x
2010-02-23 18:13:04 +00:00
tg 5beee95d6b at least _parse_ the construct ${foo+(bar)} correctly
(whether the output is correct is still up for debate)
2010-02-18 17:31:23 +00:00
tg 4eb17f8752 remove some more of this ugliness 2010-01-29 09:34:31 +00:00
tg c67bed8790 • unbreak testsuite for MKSH_SMALL
• sync version and © year
2010-01-28 20:58:34 +00:00
tg 566f882d83 Add some assertions – mkssert() – for things clang’s scan-build can’t see 2010-01-28 20:26:52 +00:00
tg 17b04f3879 No, __attribute__((used)) with SUNWcc on MirBSD still won’t work… 2010-01-28 15:13:25 +00:00
tg 2765a07564 when using persistent history (and not MKSH_SMALL), let the shells
concurrently accessing the same $HISTFILE be more synchronised with
each other: empty lines (just pressing Return) and duplicates (that
are split and written twice by the lines loaded from $HISTFILE in
the meantime); requested by Maximilian “mxey” Gaß in #!/bin/mksh
2010-01-25 16:12:57 +00:00
tg f3b3b4b1fb remove some debugging code 2010-01-25 14:38:04 +00:00
tg 559125f5f9 RCSID sync (oksh bumped their array limit again… wonder when………) 2010-01-16 19:08:05 +00:00
tg 833810a154 While we were supposed to use Ctrl-Arrowkey for wordwise jumping,
some idiotic terminal emulators and/or people seem to use the es-
cape codes normally denoting Alt-Arrowkey instead so let's simply
bind them to the vt_hack as well... (untested)
2010-01-08 22:21:06 +00:00
tg 6115f5a91c • re-implement wcswidth-like behaviour for ${%foo} even in !UTFMODE
• merge the rest of branch tg-wcswidth-behaviour
• enhance test cases for wcswidth-like behaviour
• switch hash table collision resolution algorithm to Python’s as announced
• bump vsn
2010-01-01 17:44:10 +00:00
tg c413edb34a jobs.c: apply patch from deraadt@o:
│remember to restore errno (ie. stop someone from making a mistake later)
│ok guenther
check.t, sh.h: bump vsn

I wonder though why errno must be restored even if nothing was
called after reading it… moid?
2009-12-31 14:05:44 +00:00
tg 769e222586 re-vamp __attribute__ handling; let this pass on HP-UX bundled compiler
as well as HP aCC
2009-12-12 22:27:10 +00:00
tg 65a3713605 strchr related fixes 2009-12-05 22:19:42 +00:00
tg 8213a28403 llvm/clang scan-build is now content… 2009-12-05 17:43:50 +00:00
tg 417fd60c76 * fix 'set -A foo -- [2]=a b c' contingency (tested against GNU bash4,
which, in its latest sid incarnation, even received mksh's ability
  to produce ${!foo[*]} array keys, wow!)
* plug a memory leak while here (ATEMP only, but still)
2009-12-01 19:15:35 +00:00
tg 24b48aeb3f this better be const, too 2009-11-29 17:37:22 +00:00
tg fa3acb939b fix 'mksh -U -i' and 'mksh +U -i' 2009-11-28 15:38:30 +00:00
tg a09f05e77a /me is annoyed
I read, IIRC in the Cederqvist, that 'cvs tag' sets a sticky tag onto
the cwd… it doesn’t, apparently. (I actually like it better this way,
but one needs to know!)
2009-11-28 14:28:03 +00:00
tg 883d9d99b3 switch ${%foo} to wcswidth-like behaviour – slightly problematic, and
the “set +U” case isn’t even handled

committed to branch because I’d like to get more input on this, for now
2009-11-28 14:21:47 +00:00
tg 4cff10296b bump vsn 2009-11-22 14:25:18 +00:00
tg 2094e3f25c since we have wcwidth anyway, expose it as ${%strvar} to the user, iff
utf8-mode is enabled (otherwise it'll be a synonym for ${#strvar} aka
the number of octets in it)
2009-11-21 23:23:20 +00:00
tg fe853065bb make print_columns() aware that octets≠characters≠columns 2009-11-09 23:35:11 +00:00
tg 6fcacf577d make tab completing filenames with ':' '=' '$' '`' work as well as
others (colon and equals sign need to be simply escaped, while dollar
sign and accent gravis need double escaping like opening square brak-
ket did back then); add = to C_QUOTE to simplify (doesn't break any-
thing) and sort these strings asciibetically while here
2009-10-30 00:57:39 +00:00
tg dc98ec23a6 do not use PATH_MAX on GNU/Hurd (even if it *was* defined), but use
some glibc-only functions that don’t require its use instead

tested on gnubber, where (admittedly) sysconf(_PC_PATH_MAX) == 1024…
2009-10-27 17:00:02 +00:00
tg ceb591bf6a • better IV for the oaathash-on-binary (as if we prepended a '\x01')
• better variable name for the LCG state
2009-10-18 12:30:06 +00:00
tg eafe88aa74 • overhaul handling of special variables
• use a combination of the one-at-a-time hash and an LCG for handling
  the $RANDOM special if !HAVE_ARC4RANDOM instead of rand(3)/srand(3)
  and get rid of time(3) usage to reduce import footprint
• raise entropy state (mostly in the !HAVE_ARC4RANDOM case though…)
• simplify handling of the $RANDOM_SPECIAL generally
• tweak hash() to save a temp var for non-optimising compilers
• some int → mksh_ari_t and other type fixes
• general tweaking of code and comments
2009-10-17 21:16:05 +00:00
tg 578d4e6314 fix exit-eval-1 (Debian #550717), sync SUSv4 wording, improve comments 2009-10-15 16:36:27 +00:00
tg 549888a183 while testing haserl-0.9.26 on MirBSD, I discovered that the echo builtin
in FSH mode did in fact, contrary to POSIX and Debian Policy 10.4 behavi-
our (I think), interpret escape sequences; fix and add testsuite for echo
2009-10-10 21:17:31 +00:00
tg 73147a7fe9 fix lazy evaluation of assignments in ternary ops 2009-10-04 13:19:33 +00:00
tg 33b9f8b666 * rename "set -o posix" (FPOSIX) to "set -o sh" (FSH) because it's not
just a "somewhat more POSIX" but also a "/bin/sh legacy kludge" mode
* consistently capitalise POSIX and SUSv3/SUSv4 (same as AT&T ksh) and
  Bourne shell
2009-10-02 18:08:37 +00:00
tg ff8b75f46f SUSv4 says that there be exit 127; the old code tried but failed, so it
was an actual programmatical bug…
2009-09-29 12:28:13 +00:00
tg 7b7b75b026 * move the utf_* functions to a smaller file, to reduce the pain the
CPU has to endure while gcc is crunching on edit.c
* comment on mksh not using _exactly_ OPTU-8/OPTU-16 (XXX)
2009-09-26 04:01:34 +00:00
tg a59d14b565 further optimise and simplify the handling of $RANDOM, reads and writes
to it are now either arc4random or rand/srand, but srand retains the old
state; set +o arc4random is no longer possible, but if it's there we use
arc4random(3), if not, we use rand(3) for $RANDOM reads; optimise special
variable handling too and fix a few consts and other minor things
2009-09-26 03:40:03 +00:00
tg 1dfb13b603 change undef/def MKSH_NOVI into 0/1 MKSH_S_NOVI flag (with more to come:
MKSH_S_EDIT for small (Emacs) editing mode, MKSH_S_FEAT for all the dis-
abled language features), which can be set to 0 despite MKSH_SMALL being
defined to re-enable the Vi command line editing mode (which I wouldn't,
but fits into the general mastermind scheme)
2009-09-24 17:15:33 +00:00
tg 1a28786229 * shrink MKSH_SMALL even further by removing functionality like
some GNU bash extensions (suggested by cnuke@) and bind macros
* make the random cache more efficient (and the code potentially
  smaller, although we have a new implementation of the oaat hash
  function, alongside the old one, now) and pushb only if needed
  (i.e. state has changed or user has set $RANDOM, but not onfork)
2009-09-23 18:04:58 +00:00
tg 1ea1096a4e Add a hack input function for VT100-style key sequences; support
Ctrl-CurLeft and Ctrl-CurRight (not quite ANSI, but fits the scheme)
2009-09-20 17:23:52 +00:00
tg 588921333e more of this:
• shell flags are now handled in one single place (sh_flags.h)
• sync comments (between enum and array) and manpage with reality
• FMONITOR is now no longer needed for Hartz IV shells
2009-09-20 16:40:58 +00:00
tg 3630e1f7dc only one digits instance, thank you very much 2009-09-20 13:08:12 +00:00
tg 9fd4b9db41 $'…' functionality, documentation improvements, fixes for backslash
expansion in all modes, regression tests for both kinds of backslash
expansion; unbksl() revamp; make CTRL macro available globally
2009-09-19 21:54:46 +00:00
tg c8eb13a13f align with C standard (optional C style); document differences to C style
for print builtin (align with ksh93 ipv GNU bash)
2009-09-19 19:08:48 +00:00
tg e0f000fb83 new function unbksl doing "backslash expansion" independent of c_print();
also make a separate subsection about it in the manpage
2009-09-19 15:16:05 +00:00
tg 3639137e48 another ksh93 feature: test -o ?foo (almost zero cost) 2009-09-07 17:24:49 +00:00
tg 9dd98da40d Support Dave Korn’s alternative 「'a'」 (or 「'…'」) form for base-one
integers in addition to my 「1#a」 (or 「1#…」), which also allows for
finer end-of-character checking. Note that this is locale-dependent in
ksh93, set ±U dependent in mksh, and mksh’s OPTU-16 encoding is used.
2009-09-06 17:55:55 +00:00
tg 9531e12b36 merge the nameref code, using mksh standard scoping as discussed 2009-09-06 17:42:15 +00:00
tg 4a4be7d313 add the chdir builtin from mircvs://contrib/hosted/tg/deb/mksh/ for
better dash compatibility (mksh is now a dash superset if printf is
compiled in)
2009-08-30 21:02:01 +00:00
tg e622d80394 replace pdksh’s get_phys_path() and do_phys_path() with my new
do_realpath() function – looking fine, review welcome though
2009-08-30 13:30:08 +00:00
tg 31e02e59f7 add a do_realpath() implementation replacing the use of the external
libc function realpath(3) which may not be available on the target
system; compile the realpath builtin unconditionally

looks fine to me, but review is appreciated; this is (very) lightly
based upon MirBSD libc’s realpath(3) and pdksh’s get_phys_path()
2009-08-30 13:22:39 +00:00
tg 09abc55150 documentation and test suite for tonight’s new features, ☾ gn8 2009-08-28 22:46:21 +00:00
tg 4e5553bcb4 fix type (array indices should be of the unsigned arithmetic type) 2009-08-28 22:23:34 +00:00
tg 1fd4515528 optimise 2009-08-28 21:07:27 +00:00
tg 7cb17b16a0 more int→bool 2009-08-28 21:04:18 +00:00
tg 9b8d4023fa … but since I liked the bonus of having the hval stored so much, merge
it with the array index; var.c says that
│ 1244         /* The table entry is always [0] */
so that we can have a special flag and a union which stores hval for
the table index, the array index otherwise (coïncidentally *hint hint*
they have the same size)
2009-08-28 21:01:27 +00:00
tg bb7a720a00 for now, until we really use kt*() otherwise, ifdef out tablep/hval 2009-08-28 20:38:43 +00:00
tg 4ccdfc8508 much better solution: save tablep and hash value¹ in the struct tbl entry
① also saves time during texpand :D

XXX this doesn’t work well with the current indexed-array implementation
2009-08-28 20:30:59 +00:00
tg 7240c843ce this is a rather stupid diff: give ktsearch/ktenter the capability to
return information needed to do a real ktremove instead of the pseudo
ktdelete operation which merely unsets the DEFINED flag to mark it as
eligible for texpand garbage collection (even worse, !DEFINED entries
are still counted)
2009-08-28 19:57:43 +00:00
tg cd7f3fd836 another int→bool 2009-08-28 19:16:17 +00:00
tg 2cda4dd7bb this wants a size_t (but ssize_t is enough, since order(size_t) elements
is pretty much impossible… I estimate at most a million, but not more
than 16 million, array or keytab entries)
2009-08-28 18:59:01 +00:00
tg ca1f967a45 • use Jenkins’ one-at-a-time hash for mksh keytabs, as it has
much better avalanche and no known funnels
• improve comments
• fix some types (uint32_t for hash, size_t for sizes)
• optimise ktsort()

no functional change, I think
2009-08-28 18:54:01 +00:00
tg 8f937ec71b shuffle fields of struct tbl around for better padding results 2009-08-28 18:33:05 +00:00
tg 0e1266ef90 While mksh R39 builds fine on MirOS #7s8E on my trusty sparc, pgcc 2.95.3
throws out quite some warnings – fix most of them except most emitted via
-Wconversion; work around some others; discard bogus warnings.

sync clog
2009-08-08 13:08:53 +00:00
tg ed0299042c more use of memcpy(3) when we know destination and source sizes 2009-08-01 20:32:45 +00:00
tg 68f9bfa689 if duplicating strings, it’s idiotic to use strlcpy(3) when we know
the sizes (checked)
2009-08-01 20:29:25 +00:00
tg c172cdc922 bump version and rebuild+check on MirBSD 2009-08-01 14:21:30 +00:00
tg cb2fd22c38 "official" but unsupported printf-as-builtin code, cleaner API than
in the branch; USE_PRINTF_BUILTIN=1 to enable it (Build.sh + Makefile)
2009-07-30 19:11:12 +00:00
tg 918aca2c45 * add __COPYRIGHT
* if MirBSD is recent enough, use OS' RCSID macros
2009-07-30 18:42:31 +00:00
tg 758dc5c6fe * improve CPPFLAGS vs #define handling again: do not touch CPPFLAGS from
Build.sh but use 'if defined(PRECOND) && !defined(TOBEDEFINED)'if possible
* for all of the source code, drop annotations "imake style" (if we check
  for specific OSes, bad, instead of using mirtoconf checks proper) and
  "conditions correct?" (if I'm not entirely sure if that #if catches all
  cases and no false positives) where I can see it by grepping immediately
* bump mksh patchlevel
* refresh Makefiles
2009-07-25 21:31:27 +00:00
tg bcf4080793 improve MKSH_NOPWNAM handling, whether MKSH_SMALL or not; it will cause
the entire ~fac/ expansion code to be omitted
2009-07-25 20:26:33 +00:00
tg 5e3aba8b00 simplify MKSH_SMALL => MKSH_CONSERVATIVE_FDS handling 2009-07-25 20:18:13 +00:00
tg b42582689f ABI bump to R39: adhere to the future POSIX standard regarding -o nounset;
add appropriate regression test (except $_ *is* unset in non-interactive
shells). See the thread at:
http://article.gmane.org/gmane.os.miros.general/8863
2009-07-16 15:06:45 +00:00
tg f349aeab3c be more robust against things like Debian #535970
reverts and rewrites the code from cid 10047C1EBA57E4F4AF0

XXX find out if this is done right
2009-07-06 15:06:25 +00:00
tg 3ba2780eb3 another fix from oksh for Vi Mode word erase handling, appears to unbreak
more from cid 1004A2D72DD5A4E4B4F tried to be fixed in 1004A300A72701188E3
but I’d appreciate someone who actually uses Vi Mode to test it:

   Revision 1.26: [7]download - view: [8]text, [9]markup, [10]annotated - [11]select for diffs
   Mon Jun 29 22:50:19 2009 UTC (5 days, 14 hours ago) by martynas
   Branches: [12]MAIN
   CVS tags: [13]OPENBSD_4_6_BASE, [14]OPENBSD_4_6, [15]HEAD
   Diff to: previous 1.25: [16]preferred, [17]coloured
   Changes since revision 1.25: +10 -5 lines
make VSEARCH werase act like regular werase after the last change.
vi back-words and emacs kill-region are not completely the same.
ok merdely@, millert@.  "Get it in" Darrin Chandler
2009-07-05 13:56:48 +00:00
tg 0432f97ffe more KNF, mostly whitespace, this time more manual labour applying style(9) 2009-06-10 18:12:51 +00:00
tg 39bb71fc54 Save another couple of bytes in the !ulimit case 2009-06-10 18:11:27 +00:00
tg 571546c562 • Check if killpg(3) is available; if not, use kill(2) with negative
process ID and hope it works (is POSIXly killpg-endowed)
• bump version
• sync clog
2009-06-08 20:34:40 +00:00
tg 6b2ad96bac some rather mechanical KNF, now that style(9) clarified on the status
of sizeof() as a function-like unary operator; use parenthesēs around
sizeof and return args consistently too
2009-06-08 20:06:50 +00:00
tg 848e237b76 new feature: -DMKSH_ASSUME_UTF8=0 assumes utf-8 is *not* set and skips
environment inspection; useful for initrd and the likes
2009-06-07 22:28:05 +00:00
tg 16c47bbe91 fix bug exhibited by t0000-basic.sh introduced in R38 shortly before the
release: sometimes, a “cd -P” would cause memory corruption because lalloc
internal data was overwritten due to accidentally losing a “continue;”
2009-05-31 15:10:07 +00:00
tg da5dc48cd0 implement an extension that an interactive mode input line, when
starting with an ‘!’ exclamation mark at the beginning of a com-
mand (PS1 not PS2), shall have the same effect as the predefined
“r” alias, to be compatible with csh and GNU bash’s “!string” to
«Execute last used command starting with string» – documentation
and feature request provided by wbx@ (Waldemar Brodkorb)
2009-05-27 19:52:38 +00:00
tg b90007d784 • Build.sh, strlcpy.c: gcc-current conversion &c. warnings cleanup
• histrap.c, lex.c, misc.c: get average stack frame size to <= 768 bytes
• check.t, sh.h: bump version
2009-05-27 09:58:24 +00:00
tg 9179c10119 pgas mentioned ksh93 does [[ $foo ]] (ipv forced [[ -n $foo ]])
and it actually REDUCES code size to allow it as well; mention
in the manpage that it’s merely unportable (and of course exe-
cution time differs); sync clog
2009-05-21 14:28:35 +00:00
tg ae8d54284a commit Syllable-related improvement: simplify p_time 2009-05-20 10:10:02 +00:00
tg 361dee04f3 laffer1 agreed they will need -DMKSH_MIDNIGHTBSD01ASH_COMPAT in the
short term, but only for /bin/sh – thus recommend to also define
-DMKSH_BINSHREDUCED and make it dependent on FPOSIX
2009-05-16 21:00:52 +00:00
tg 8a2557f846 pcc cought a bad programming idiom I accidentally used
(without realising that it’s a macro expansion, that is)
2009-05-16 19:34:07 +00:00
tg b6ce748064 • remove “#if 0” and “#ifdef notdef” style old debugging code
• expose “#ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT” just in case they decide to
  require it and show it in the ksh version automatically
• sync the use of non-ASCII characters over files (unification)
2009-05-16 18:40:09 +00:00
tg b145ca5c9f • sync distrib/special/mksh/Makefile with bin/mksh/Build.sh and
fix the regression test’s results while here, which have been
  broken since cid 10049D9BE5254CE65B8
• get rid of separate copyright file which was intended for De-
  bian; track down commits in all files of oksh-mirbsd and mksh
  to get correct copyright years per-file, as is BSD custom
2009-05-16 16:59:42 +00:00
tg cc783807d3 this began as a one-word change to the spec (manpage): that
${foo:1:2} operates on characters ipv bytes – which means:
‣ set +U: octets
‣ set -U: MirOS OPTU-8 characters

for consistency I also adapted ${#stringname} to deliver the
length in characters ipv bytes; more may follow; for example
I’d like a way to expose the string width.

you can already get the MirOS OPTU-16 of a character in the
WTF-8 (「set -U」) mode with something like
│ typeset -Uui16 -Z7 x=1#${stringname:position:1}
which will correctly use the PUA EF80‥EFFF mapping for octets.

due to this being an incompatible change, bump to R38

also change the unicode-hexdump sample regression test and
add two news for ${x:1:2} and ${#x} checks in A/W mode ☺
2009-05-16 15:53:02 +00:00
tg 8a7223d4cd split utf_ptradjx into utf_ptradj function (to save space) and
self-assignment macro; remove some uses of the macro in favour
of foo += utf_ptradj(foo)
2009-05-16 15:09:07 +00:00
tg 747cc12184 Add search-history-up and search-history-down keybindings (both unbound
by default) to the Emacs command line editing mode; patch originally by
James Butler <sweetnavelorange@gmail.com> but slightly modified

10x
2009-05-16 14:19:23 +00:00
tg 8cc7fdb834 "evil" workaround to the alignment issues: embed an ALLOC_ITEM into
struct env (other structures defined have no "foreign type with pos-
sible alignment constraints" members) and take care of it while dea-
ling in a struct env instance
2009-04-07 19:43:28 +00:00
tg d43f4efe60 employ some "nice" constants and comment lalloc.c 2009-04-07 18:56:51 +00:00
tg 4de58fe6fa globalise SIZE_MAX definition 2009-04-07 18:46:07 +00:00
tg 9e83002841 try to do some optimum struct packing except for struct env
(pointers, longs, size_t first; time_t next; int etc. then enum, bool)
2009-04-07 18:41:37 +00:00
tg e88736b5ef decouple conservative file descriptor use from MKSH_SMALL, with the
new MKSH_CONSERVATIVE_FDS præprocessor flag, because Minix 3, for
example, needs it (otherwise “mksh Build.sh” fails)
2009-04-06 08:33:37 +00:00
tg 398be9867a fix jobless mksh so much to make it work on Minix 3 2009-04-05 12:35:32 +00:00
tg 56c6e384e6 (experimental) implement getrusage via times if not found 2009-04-03 09:39:07 +00:00
tg db6ed8be7c ... and it did in fact require DEC ucode cc to spot this!
gcc, SUNWcc, pcc, llvm-gcc, clang, etc. all didn't say a thing!

now compiles warning-free (testsuite pass) on ULTRIX 4.5 (1986),
and OSF/1 X2.0-8 (testsuite norun: perl missing) has only the usual
bitchings about "volatile sig_atomic_t" because the latter part is
already volatile, but otherwise warning-free compile, works fine
2009-03-25 21:45:28 +00:00
tg c7b2af502e further simplify
XXX check whose platforms’ realloc(3) don’t take NULL
2009-03-24 08:53:45 +00:00
tg 99a8c2a814 bump to R37; the ;& and ;;& are postponed indefinitively for now,
as I don't get to it and it's nontrivial
2009-03-22 18:50:43 +00:00
tg 62b28858d4 sync; fold oksh-seterror test into errexit-*; use print not printf 2009-03-22 18:28:35 +00:00
tg b20f49adae patch from oksh (except manpage, I'll merge that later):
pass "xerrok" status across the execution call stack to more closely
match what both POSIX and [18]ksh.1 already describe in regards to set
-e/errexit's behavior in determining when to exit from nonzero return
values.

specifically, the truth values tested as operands to &&' and ||', as
well as the resulting compound expression itself, along with the truth
value resulting from a negated command (i.e. a pipeline prefixed !'),
should not make the shell exit when -e is in effect.

issue reported by matthieu.
testing matthieu, naddy.
ok miod (earlier version), otto.
man page ok jmc.
2009-03-22 17:47:38 +00:00
tg 0fe20ab25f sync with oksh (nop) 2009-03-22 17:31:17 +00:00
tg ca539f08f0 remove espie's double-linked-list based allocator and write a
similarily simple one from scratch, which however performs
better than espie's with AFREE_DEBUG enabled which took away
the benefit of the double-linked-list approach

all of (core) mksh is now MirOS licenced
2009-03-22 16:55:38 +00:00
tg d8c3d6e9c1 another off-by-one, reported by «macaronyde:#!/bin/mksh» 2009-03-17 13:56:47 +00:00
tg d99541d7c8 revert previous commit for now. testscript which breaks:
H4sIAAAAAAACA31TTUvDQBC951c804DtIQ0iiFhSPHiwiCDqzUpIuhO6JN2ETSS16n93Np+GFiGE
zM6bN2/fTPQOro5xENYuEVLzBz9eaF6RlWupSpyHaXqzVuvyljbbDCRV0UR7WeLiHEtT4D2GCcUy
pdNFh4pkg4wGZCV8Z6opTPOw3GI+swoq4ZIVZxqkSv0JqRAiWkBkmAJNegHIGG9vcAWcSnjM6dTo
uby8vsL7+wLllhQQKKr4SoFv/8nbXE5pQcdpk4nlwH6AE7zer17uVs/BmHVftnUdxYh0yHbV3ghY
9wh2rQlBkdMm8PmIe57Bjfs7dTW9X/OoEG6lwzwnzYKA7+8jHpsJTuFN4+IjKhKZM6dpZ0xuQ2Nz
7bGB1F74zlebmzTm/PS+OB0GZz4HLcPgz+BeDxyS9S7YU6e3qZaQk5gZgRHvQtI59Eet7QwBWFnL
O/F+ej9Fpmg0ug7OHrnqHy2+7y8x6DGEG3E0Az41RuPlYfXEEx0psrl8PAUebzf6ZklabgD8V3SS
Z7Vo6xfOuQS6gQMAAA==

「mksh -o posix z」 failed in that it continues; 「mksh z」 correctly aborts
let’s see what the obsd people have to say herefore
2009-03-16 15:50:13 +00:00
tg e39c1f860d bring back the backed-out Debian patch if FPOSIX; test programmes fixed:
H4sIAAAAAAACAz1PywrDIBA8m68YgoT20EN7TMixX1F6yGNFIWhRSw2h/95VmuDB2XmsY2oDRVyo
Si1N2uHlMzQK0b8JHaImy4RQwxIITYPiUs4xqcyeGgdfrfumtWX5dMbGSHy0WQgP1PJa49lhdpkV
ynncYSxkOjjxd/V83dmcX9sQtFGRi0zORmO5042HbwnMzlIBqa9lAmfLVBIZ7XqpKBPDnDu+WXpi
wMhnOgQXYvUD+oKHAhUBAAA=

XXX OpenBSD has something different which may DTST or even DTRT (not break
XXX our make(1) wrt <bsd.subdir.mk>), check that
2009-03-16 15:14:23 +00:00
tg 7c040d98f9 sprinkle a few static and clean up the internal APIs 2009-03-15 16:13:40 +00:00
tg 32bc1dc40e sprinkle mksh_ari_t to limit arithmetics to 32 bit even
on Debian Lenny/amd64 (XXX need more verification; this
can be used for 64 bit arithmetics later too)

PPID, PGRP, RANDOM, USER_ID are now unsigned by default
2009-03-14 18:12:55 +00:00
tg 1b3e4a3a2e when outputting in a row x column formatted way, but the available space
on the screen is not enough for two columns, just output the text line by
line, instead of trying to format it; gets rid of superfluous empty lines
if we did not even have space for one column on the screen (x_cols)

noticed by Gábor Gergely in irc, thanks!
2009-02-22 18:02:31 +00:00
tg 5e22cb486f <sys/file.h> is only required for, and only contains, flock(2) 2009-02-20 13:25:10 +00:00
tg 177b1b4cf9 always set COLUMNS and LINES; make use of the fact in dot.mkshrc 2008-12-29 21:34:22 +00:00
tg de9fe12a4c use a more common/generic routine for TIOCGWINSZ;
ensure x_cols and x_lins always have a sane value
after them (even if not tty_fd)
2008-12-29 21:05:15 +00:00
tg 5e3fcc7ab9 new global x_lins (like x_cols), MIN_LINS (like MIN_COLS) 2008-12-29 20:53:48 +00:00
tg 2fb7225499 give tty_init() another argument for silent initialisation 2008-12-29 20:47:16 +00:00
tg 858d8e8b5a implement unsigned arithmetics as an mksh extension 2008-12-17 19:39:23 +00:00
tg c62d5791ae fix signedness issue wrecking havoc on 64 bit architectures, oops 2008-12-13 18:32:27 +00:00
tg 31d1499219 * back out almost all of the memory allocator related changes, as aalloc
was hard to type and hard to fix, galloc is also hard to fix, and some
  things I learned will probably improve things more but make me use the
  original form as base (especially for space savings)
* let sizeofN die though, remove even more casts
* optimise, polish
* regen Makefiles
* sprinkle a few /* CONSTCOND */ while here
2008-12-13 17:02:18 +00:00
tg 042086e49e rename utf8-hack to utf8-mode (use set -U or set +U instead, anyway)
and announce less hackish things
2008-12-04 18:11:08 +00:00
tg a19bf7253a * sh.h: note that file descriptors SHALL be <100
* syn.c: fix bashiop-4 regression test; failed due to me using a
  simple string when a wdstring was expected, sorry; the new code
  assumes file descriptors take up a maximum of two characters
2008-12-02 13:20:40 +00:00
tg 4897682502 Alias expansion has a recursion check which tries to break the cycle if
encountered. However, when reading end of input, the source type is set
to SEOF while popping, whereas the recursion check code only checks for
an SALIAS type.

Fix: add a new SF_HASALIAS flag; change u.tblp from being valid if type
is SALIAS to being valid if SF_HASALIAS is set; set SF_HASALIAS for the
created SALIAS sources; set SF_HASALIAS and u.tblp when creating SALIAS
whose next is SEOF on the SEOF source as well.

Reported by Michael Hlavinka as Redhat Bug #474115
2008-12-02 12:39:38 +00:00
tg c0703f5f26 if MKSH_SMALL and HAVE_ARC4RANDOM, there is no need to use rand()/srand(3)
ever, since MKSH_SMALL is not required to be as close to compatibility as
normal/generic shells; we can also get rid of time(3) calls
2008-11-30 10:33:40 +00:00
tg 6be05862db meet AALLOC_STATS 2008-11-15 08:52:01 +00:00
tg 6b9cdbbfd6 globalise internal_verrorf() 2008-11-15 08:42:36 +00:00
tg cd716426e4 introduce AALLOC_STATS, which somewhat breaks the encapsulation for need
of a friendly name
2008-11-15 08:03:24 +00:00
tg 32e1ecf5b3 enable passing of a hint how many pointers we’ll need to anew()
if 0, the default is used
2008-11-15 07:35:25 +00:00
tg 3c1e46ee4d prepare for aalloc.c, which I have just written myself, as an area-based
allocator using malloc and free, with mmap malloc and omalloc in mind,
not counterfeiting its security measures such as guard pages, and having
some of our own, e.g. XOR random cookies, optional mprotect, etc.

zero cost (for we have arc4random())
2008-11-12 04:55:19 +00:00
tg 8d5d720f08 get rid of tempting sizeofN macro 2008-11-12 00:55:32 +00:00
tg 4d3fc2413e switch to a (nmemb,size) API from a (nmemb*size) API
cost: text += (308, 256, 4, -100)
2008-11-12 00:54:52 +00:00
tg 246b762af7 isolate all knowledge of the area-based allocator from the rest of the code
cost: bss -= (0, 0, 16, 16); text += (520, 504, 516, 480)
[ gcc,pcc X full,small ]
2008-11-12 00:27:57 +00:00
tg c80c28633b change use of “Area *” to “PArea” and “struct Area” to “TArea”
no change in size (mgcc and pcc, small and full)
2008-11-11 23:50:31 +00:00
tg 2a0e181a70 work around even more format string warning stuff 2008-11-10 19:33:08 +00:00
tg 65b1923b61 build warning-free with LLVM+Clang on MirBSD itself
$ (CCC_LD=mgcc CC=ccc sh Build.sh -r && ./test.sh -v) 2>&1 | tee log
Total failed: 2 (as expected)
Total passed: 278

Just the result is huge, and we could of course build to intermediate
byte code to optimise globally…
2008-11-09 20:32:18 +00:00
tg 89e96b6c86 experimental support for <strings.h>
cf. http://www.opengroup.org/onlinepubs/009695399/basedefs/strings.h.html
QNX seems to bury some functions in there
2008-11-02 22:29:36 +00:00
tg bf3194e937 save 1640 .text bytes in MKSH_SMALL case by not inlining strdupx, strndupx 2008-10-28 14:51:06 +00:00
tg 88d7b7d08b • rewrite code to no longer use statements-as-expressions
• optimise a little
• Build.sh: remove HAVE_EXPSTMT test
• Build.sh, */Makefile: sort tests, regenerate
• mksh.hts: sync clog
2008-10-28 14:32:43 +00:00
ahoka 776cc76ccb Add check for the nice(3) system call.
It may be not implemented on some plaforms, though it's usually present.

Required to compile on Haiku as of 2008 October.
2008-10-26 21:51:27 +00:00
tg 8230c9d8ae • do not use __typeof__ even if we have statements-as-expressions, to
please pcc, prompted for by Anders “ragge” Magnusson, problem spotted
  originally by Adam “replaced” Hoka
  ⇒ rewrote x_bs2() and utf_backch() into a combined x_bs3() function,
    since these are never used in any other way
• whitespace cleanup, while here
2008-10-26 20:59:40 +00:00
tg bc046dd8f2 this will most certainly be mksh R36 2008-10-24 21:35:43 +00:00
tg 331b45af7d • OSF/1 may not have MAP_FAILED defined either
XXX mmap() works only on devices on some DEC OSes, not on files, so,
  XXX instead, it were best to disable it altogether
• bump date
2008-10-24 19:54:23 +00:00