the latter is required by HP-sUX, okay, and apparently the
preferred one by glibc (GNU libdrepper?), but breaks on al-
most all other systems I have access to (Slowlaris, Midnight
DragonFly NetBSD, Darwin, at least)
since mksh(1) did go into an infinite loop if that fails first
bug spotted, initial patch and help drafting a test case
From: Decklin Foster <decklin@red-bean.com>
note there are more instances of unlink(2) and others (like chmod(2), as
spotted by flawfinder) which aren’t checked… but at least the other case
of unlink(2) use in histrap.c doesn’t cause any trouble (I think)
and make it fit into mksh’s model (also gives us a couple of things
GNU bash doesn’t have
• add regression tests for all of these
Lukas “smultron” Upton from MidnightBSD spotted a script with /bin/sh
shebang invalidly using “&>” in some Apple backup toolkit, 10x
XXX why fds are limited to one digit?
* initialise the integers PPID, OPTIND, RANDOM, SECONDS, and TMOUT to base-10
* bring back PGRP as base-10 integer to the process group via getpgrp(2)
* initialise USER_ID as base-10 integer to the effective user id as retrieved
from geteuid(2) = $(id -u)
* use $USER_ID in dot.mkshrc instead of spawning an id(1) process
-> dot.mkshrc,v 1.34 now requires mksh R34
* convert more int to bool where appropriate
* remove dead code - getpgrp(2) cannot fail
* sync manual page to reality
* bump to mksh R34(beta) - feature freeze
XXX check if our_pgrp in jobs.c is still really needed, the setpgid call
XXX probably just makes us our own pgrp leader, and we might have to use
XXX and update kshpgrp accordingly - need feedback/help here but I think
XXX this simplification should be possible if I grok the code correctly.
etc/profile:
* adjust to $USER_ID changes in mksh (speed-up here, too)
mksh.hts:
* sync changelog
change – this might affect other OSes too in time for R34
• one of the regression tests had an unexpected failure if running as root
• www: sync clog; log newer mksh built on newer OpenBSD works fine
• more int → bool
• more regression tests: check if the utf8-hack flag is really disabled
at non-interactive startup, enabled at interactive startup, if the
current locale is a UTF-8 one
• make the mksh-local multibyte handling functions globally accessible,
change their names, syntax and semantics a little (XXX more work needed)
• optimise
• utf_wctomb: src → dst, as we’re writing to that char array (pasto?)
• edit.c:x_e_getmbc(): if the second byte of a 2- or 3-byte multibyte
sequence is invalid utf-8, ungetc it (not possible for the 3rd byte yet)
• edit.c:x_zotc3(): easier (and faster) handling of UTF-8
• implement, document and test for base-1 numbers: they just get the
ASCII (8-bit) or Unicode (UTF-8) value of the octet(s) after the ‘1#’,
or do the same as print \x## or \u#### (depending on the utf8-hack flag),
plus support the PUA assignment of EF80‥EFFF for the MirBSD encoding “hack”
(print doesn’t, as it has \x## and \u#### to distinguish, but we cannot use
base-0 numbers which I had planned to use for raw octets first, as they are
used internally): http://thread.gmane.org/gmane.os.miros.general/7938
• as an application example, add a hexdumper to the regression tests ☺
(3 weeks, 5 days ago) by millert
Make ulimit able to get and set multiple limits in a single invocation
like bash and zsh do. Requested by espie@, OK deraadt@
matches mksh pre-R29 (the one introducing the bug), and typeset matches
the behaviour intended with the R29 changes (better AT&T ksh93 compati-
bility) but never reached
• adjust the man page description of “typeset -p”, as it’s different from
the “typeset” and “typeset -” actions
• apply diff from mirbsdksh-1.11:
#ifdef DUP2_BROKEN
/* Ultrix systems like to preserve the close-on-exec flag */
‣ XXX we do #ifdef __ultrix here (imake-style) instead of mirtoconfing it
(but does anyone know of any other OS with the same problem? plus we’d
see it as we now know the symptoms)
• remove ultrix Build.hs warn=' but might work…' in the hope it DOES
• split Xinit into XinitN and Xinit macro, the former
not initialising the “xp” argument of the latter,
and use this to get rid of two variables that are
only assigned but never referenced (gcc doesn’t see
this, but MIPSpro and IIRC SUNWcc do)
• re-indent while here
• bump patchlevel
‣ I/O redirection seems broken:
$ (date; date >/dev/null; date) | wc -l
1 (expected: 2)
‣ other than that: working fine
‣ -YBSD (default) and -YSYSTEM_FIVE don’t work, just -YPOSIX, somehow
• Fix $(…) to `…` for OSF/1 V2.0 /bin/sh
‣ this compiler is FUBAR though:
$ cat >t.c
main() { return (foo()); }
$ cc t.c
ld:
Unresolved :
foo
$ echo $?
0
$ ls -l a.out
-rwxr-xr-x 1 mirbsd users 10835 Jul 21 17:12 a.out
‣ it seems to have ucode, but man is not installed
• new mirtoconf check: mkstemp(3)
• if !HAVE_MKSTEMP (Ultrix), use tempnam(3)
• only use printf(1) if it exists (it doesn’t on Ultrix)
• a few more signals
• add S_ISLNK if the OS doesn’t define it
• add strcasecmp(3) proto for Ultrix (it _is_ in <portability.h>, but
only for -YBSD I think)
• fgrep(1) on Ultrix doesn’t do “-e ① -e ②”
10x DEChengst:#UnixNL for giving access
| csh -cf '/command/svscanboot &'
and
| /usr/mpkg/bin/pgrphack /usr/mpkg/bin/svscanboot &
can now be replaced with
| /bin/mksh -T- /usr/mpkg/bin/svscanboot
| OSF1 rubbereendje.dechengst.nl V5.1 2650 alpha
with the vendor compiler:
| Compaq C V6.5-011 on HP Tru64 UNIX V5.1B (Rev. 2650)
| Compiler Driver V6.5-003 (sys) cc Driver
• the platform’s sig_t is incompatible too (simplify check)
• no compile warnings at all
• results in:
$ size mksh
| text data bss dec hex
| 327680 16384 17808 361872 58590
$ file mksh
| mksh: COFF format alpha dynamically linked, demand paged executable or object module not stripped - version 3.13-14
$ ldd mksh
|
| Main => mksh
| libc.so => /usr/shlib/libc.so
$ ls -l mksh
| -rwxr-xr-x 1 mirbsd users 395200 Mar 5 19:18 mksh
• minor testsuite issues:
FAIL ./check.t:regression-13
unexpected stderr - got too much output
wanted nothing
got:
Successful
cat: output error
⇒ probably harmless
• works like a charm!
the token. Fixes unreported problem with pdksh reporting syntax error
on the init scripts that define function named ‘stop’ (clashing
with an built-in alias.)
-- Robert Luberda <robert@debian.org> Sun, 27 Feb 2005 18:36:55 +0100
this change broke abortion on failure to read input, was not
needed for gcc warnings and is the fault of Intel’s compiler
this should fix the other busy-loop problem occuring only on
GNU/Linux so far – 10x spaetzle@freewrt.o for pointing me to
the problem; reproduced on my work craptop
from netbsd via oksh
we had the NULL pointer deref already fixed
• avoid a bogus not-setting the return value of edit.c:x_file_glob()
introduced by the above change in oksh
• escape ? as well (but not ] because that’s wrong)
reminded by cbiere@netbsd via oksh
• Unsetting a non-existent variable is not an error. See
http://www.opengroup.org/onlinepubs/009695399/utilities/unset.html
report from Arkadiusz Miskiewicz; fixed based on
http://cvs.pld-linux.org diff via oksh but modified slightly
• Be more smart waiting for input for non-interactive scripts. Fix
based on a diff from debian: see their bug#296446 (via oksh)
modified slightly
this also fixes cnuke@’s “mksh busy loop” problem, for which I never
received a bug report, but the Debian bug page contains a set of two
scripts to reproduce this before (and no longer after) this commit
• some KNF
• bump version
In contrast to AT&T ksh93, its semantics are like GNU bash in that it ap-
pends the current working directory to the search path; it is implemented
as a shell alias instead of enhancing funcs.c:shbuiltins[] like in ksh93.
delivered to the process
• regression test by Clint Pachl, verified against Debian ksh93 by me
• place to fix it in the code discovered by Otto Moerbeek
namely Dr. Robert “Pfeffer” Arnold (in this case, in FreeWRT), make
a half-completed attempt at implementing ${foo:2:3} substring evals
(of course, negatives can't work right now and that the numbers are
in face expressions is something I only read later too – this is to
be revisited later, but it's already late)
don't depend on this behaviour yet though
if someone wants to add more regression tests, feel free to…
is a compromise anyway; these lunox people will have to live with that, too
many existing korn shell alike scripts depend on it even if not on the full
korn shell syntax availability (note: this doesn't mean using these in some
script with #!/bin/sh is ok)
mksh was configured to have utf-8 mode “always on” (because it's
really only always on for interactive shells); setting it to really
always on would break the other half of this regression test, so
do the optimisation only if MKSH_SMALL
do not start with a "#!shell" sequence” part of mksh(1) true again; this
was probably lost in mksh R21 or so when I decided/saw that our kernel
always parses shebang lines (code written myself, not taken from pdksh
again or MirBSD kernel, but verified against both)
• bom+shebang execution now works, no need setting EXECSHELL in the test
• bump version
starting with an UTF-8 BOM before the shebang can be executed correctly;
this would succeed if either mksh parses the shebang line instead of re-
lying on $EXECSHELL or the kernel supports it
bsiegert@ ok's my attempts to fix this
given to execute, standard input (interactive or not), via -c command line
argument, or after “eval”, but not for $(…) comsubs, at the beginning of a
subsequent line, or within a line, etc.); regression test for it
idea during my “week off” (despite the pain), bsiegert@ thinks it's good –
and utf-8 capable tools ought to be able to do this anyway
and have it return an API-correct const char *
• enhance and stylify comments
• a little KNF and simplifications
• #ifdef DEBUG: replace strchr and strstr with ucstrchr and ucstrstr
that take and return a non-const char *, and fix the violations
• new cstrchr, cstrstr (take and give const char *)
• new vstrchr, vstrstr (take const or not, give boolean value)
• new afreechk(x) = afreechv(x,x) = if (x1) afree(x2, ATEMP)
• new ksh_isdash(str) = (str != NULL) && !strcmp(str, "-")
• replace the only use of strrchr with inlined code to shrink
• minor man page fixes
• Minix 3 signames are autogenerated with gcc
• rename strlfun.c to strlcpy.c since we don't do strlcat(3) anyway,
only strlcpy(3), and shorten it
• dot.mkshrc: move MKSH=… down to the export line
to not disturb the PS1 visual impression ☺
• dot.mkshrc: Lstripcom(): optimise
• bump version
¹) side effect from creating API-correct cstrchr, cstrstr, etc.
uses goto so it must be better ☻
tested on mirbsd-current via both Makefile and Build.sh
sequence is eaten before the command is called; cought by <TGEN>
(Thomas E. Spanjaard) via IRC
fix is to tabcomplete a newline to singlequote+newline+singlequote
* bump version
side (I don't have capacities to scan 71711 files in MirOS for a
standards-compliance whack)
* copyright: mention CVS changelogs as place of contributors' name
and credit information, too
* check.t, sh.h: bump
* 'sigseen' in Build.sh goes away
* Signal name existence is checked in this order:
have our own¹ -> sys_signame[] -> _sys_signame[] -> build our own²
* Signal description existence is checked in this order:
sys_siglist[] -> _sys_siglist[] -> strsignal() -> NULL³
¹ Predefined list of items, for operating systems where we
cannot build² them, i.e. Plan 9 and Minix 3 (e.g. no $CPP -dD)
² The usual cpp(1) stuff
³ Changed later, see below
* Make $CPP test dependent on $NEED_MKSH_SIGNAME (others can
be added here, this is not absolute)
* Make signal name list generation² dependent on $NEED_MKSH_SIGNAME
* Fix check if the generation worked
* Guarantee that sigtraps[*].name and sigtraps[*].mess are valid
C strings; this makes the code shorter *and* removes a few pos-
sible nil pointer dereferences
* Embed autoconf'd usages of sys_sig* / strsignal / mksh_sigpairs
into inittraps()
* Check for each signal 0<=i<=NSIG that
name is not NULL or "" -> replace with ("%d", i)
mess is not NULL or "" -> replace with ("Signal %d", i)
name does not start (case-insensitive) with "SIG" -> name += 3
* In gettrap(), fix check if signal name starts, case-sensitive
or case-insensitive, depending on need, with "SIG" (bug from millert@)
Other changes:
* Build.sh: ac_test[n]() are documented
* Build.sh: ac_test[n]() can have negative prereqs as well now
* Build.sh: use <<-'EOF' consistently
* bump patchlevel to today
to strcasestr, it was used in a wrong way (reverse logic error in
checking its return value), turning to mis-detection of UTF-8 locale.
* sh.h, check.t: bump version
* copyright: bump year
twkm (from #ksh on freenode), that $RANDOM is always an unsigned
15-bit decimal integer.
(RANDOM << 15 | RANDOM) thusly yields 30 bit, which is still more
than 36^5, so we can use it on the baselife CD to speed things up
* edit.c: remove debug stuff again; next time better use shl.c functions ;)
* sh.h: add format attributes to a few shf functions
* histrap.c, var.c: fix format string mistakes
* main.c, sh.h: error_prefix and warningf take bool not int
* misc.c: make chvt() stuff use shf_* functions
* misc.c: rewrite the TIOCSTTY stuff to be better integrated in mksh,
since it originally was an external patch
* misc.c: chvt() no longer fails if e.g. chown fails due to e.g. R/O / fs
* var.c: fix typeset padding for right-justified zero-filled
17:38⎜«hondza:#mksh» fail ../mksh/check.t:IFS-space-colon-3 (as expected)
17:38⎜«hondza:#mksh» FAIL ../mksh/check.t:integer-base-5
17:39⎜<mirabile:#mksh> interesting
17:40⎜<mirabile:#mksh> why does integer-base-5 fail?
17:40⎜«hondza:#mksh» j=~3
17:40⎜«hondza:#mksh» ~3 expands to /tmp/3
17:40⎜<mirabile:#mksh> aah, nice catch
17:40⎜<mirabile:#mksh> that must be quoted of course. bug in the test.
17:41⎜<mirabile:#mksh> can you try with j='~3'
17:41⎜<mirabile:#mksh> I'll commit that in an instant then
17:42⎜«hondza:#mksh» yeah, quoting it worked
17:42⎜<mirabile:#mksh> thanks
17:42⎜«hondza:#mksh» :)
* integrate compat.h, version.h into sh.h (dependency trick didn't work anyway)
* mention #ksh in mksh(1) since the founder (twkm) said it's on topic too
(don't remove mention of #mksh despite it's usually empty because of control)
tg