Commit Graph

259 Commits

Author SHA1 Message Date
tg b697f0ef70 make it compile 2015-04-29 20:16:48 +00:00
tg 609b311919 more low-hanging fruits for EBCDIC; notes:
• ord() new, From: Daniel Richard G. <skunk@iSKUNK.ORG>
  ‣ used in some places
• (c - '0') → ksh_numdig(c)	# may take *x++ argument
• (c - 'A') → ksh_numuc(c)	# may NOT take *x+= argument
  ‣ idem for ksh_numlc(c) and 'a'
  ‣ these need changing for EBCDIC
  ‣ add testsuite for this
• use macros more, they exist already often
• use digits_lc[foo] instead of ('0' + foo), especially for letters
• caught another ksh_eq case…
• also caught a maybe-UB overflow check, but we don’t have TIME_T_MAX ☹
2015-04-29 20:07:35 +00:00
tg 2cb0ea982a EBCDIC helpers and OS/390 signals 2015-04-29 18:38:54 +00:00
tg c3efd2abb2 use already-existing ksh_isdash helper macro 2015-04-29 18:32:44 +00:00
tg 2097d45f7f oksh rcsid-only sync, plus bonus rewrite of strip_nuls
(uses size_t ipv int for buffer size now, and no extra
calls to memchr/memmove, input is typically small)
2015-03-20 21:46:41 +00:00
tg 707add559f keep “set -x” disabled during PS4 expansion, to avoid infinite looping 2015-03-01 15:23:05 +00:00
tg 934929c2ee rcsid sync from obsd; misc sync; small improvements
• mksh testsuite no longer uses printf, again
• use MAXPATHLEN from <sys/param.h> as PATH_MAX fallback
2015-01-25 15:23:43 +00:00
tg 51c370459e bump version and, also, year… I hate this… 2014 is gonna follow us for a while… 2015-01-02 13:21:28 +00:00
tg 7b4951c58f apparently, we’re supposed to setuid() before seteuid()
cf. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772597
also, groups before users, methinks…
2015-01-02 08:18:44 +00:00
tg 2f52b993a1 • Build.sh: fix NSIG detection for gcc-snapshot
• all: bump version to R50-current; add more comments; whitespace
• all: remove all mkssert(); we’ll do full re-runs of scan-build and,
  hopefully, Coverity Scan/Prevent
• check.t: fix a testcase (sed could exit false, but we don’t care)
• eval.c: fix tilde_ok data type (only unsigned may shl constantly)
• exec.c: fix shebang buf array accesses to always go via uint8_t *
2014-11-25 21:13:31 +00:00
tg d25612b4b0 stop using ptrdiff_t 2014-11-25 20:00:39 +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 c4c4fd7365 RCSID-only oksh sync (their whitespace changes don’t apply to us)
note that emacs.c partial peereboom rewrite is *not* merged, and kept that way
2013-11-30 17:33:51 +00:00
tg be9bd4c543 static option creating for cmdline and set, too
(in preparation of doing something real with set ±p)
2013-11-17 22:22:56 +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 fda010d8de SECURITY: Unbreak “set +p”, broken by OpenBSD ksh change.
TODO: I am seriously considering following Chet and changing
the way this works, by explicitly dropping privs unless the
shell is run with -p. Every other shell does it like mksh,
except Heirloom sh, which on the other hand doesn’t know any
explicit set -p or set +p (though it doesn’t know set +foo
for any foo either).

┌──┤ QUESTION: Do we need the ability to do this:
│ tg@blau:~ $ ./suidmksh -p -c 'whoami; set +p; whoami'
│ root
│ tg

If not, I’m seriously considering to drop set ±p as well,
only parse -p on the command line, with +p being the default,
and dropping FPRIVILEGED.

Thanks to RT for noticing and jilles for initial follow-up
discussion, as well as Chet Ramey for doing the sane/secure
thing instead of following Debian.
2013-08-23 14:07:39 +00:00
tg bb0b409a9d improve density of .rodata (with net win on .text size(1)) via better struct packing 2013-08-11 14:57:11 +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 8e6b0f712a support n̲o̲t̲ fork(2)ing for -T (by prepending the tty with ‘!’); especially useful on Linux since our own setsid(2) is more annoying; gets rid of the need for oneit_lite and similar hacks; WARNING: also removes chown/chmod on the tty! 2013-06-03 22:28:06 +00:00
tg f0f34eb7b6 • Allow setting both -o posix and -o sh (although only in the same
command; setting one still unsets the other at first)
• Change subst_exstat to be conformant unless -o sh is set and -o posix isn’t
• In lksh, make subst_exstat (newly) conformant if -o posix
• New MKSH_BINSHPOSIX to accompany MKSH_BINSHREDUCED
• Sync lksh manpage precisely
2013-05-02 20:21:45 +00:00
tg 3674320e2e x_cols is a signed long in lksh; unbreak "set -o" and other print_columns using code 2013-04-27 19:09:13 +00:00
tg 75a4809a3a fix remaining signed int nonsense I am aware of 2013-04-26 19:10:58 +00:00
tg 7cce9de0bc one can’t cast an unsigned int to a signed int portably either, if the value
is larger than the positive range of the latter (implementation-defined), so
avoid them in all explicit cases and rearrange stuff and check for it

(I’m gonna have to revise lots more code…)
2013-04-01 02:37:53 +00:00
tg d7c28d90f9 optimise prefer_cols print_columns display 2013-02-24 14:22:44 +00:00
tg 9a8cb6fbf6 why’s there a space before the newline? 2013-02-24 14:10:04 +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 f654a3dea4 fix libFirm/cparser -Wsign-compare 2012-12-05 19:38:25 +00:00
tg cf807eb83a Add assertions and shuffle code around for LLVM+Clang scan-build. 2012-12-04 01:18:34 +00:00
tg 68c4dae6ef Rewrite the getn function (again) to fix any remaining issues. 2012-12-04 01:12:11 +00:00
tg e36075e58d open distinguishes between >=0 and ==-1 but <-1 is undef, make it error 2012-11-30 17:34:46 +00:00
tg 0ce7dcf856 maybe this makes gcc not bitch… again… anal-retentive arsecompiler…
found in opensuse buildservice logs for centos 5
2012-10-22 20:52:47 +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 9b7b7f742e implement ksh93 feature ${ foo;} 2012-07-30 21:37:17 +00:00
tg 6724ba505d make 'typeset -p' (and soon ${foo@$}) output strings safe for re-entry
into AT&T ksh93 (that we still must use octal, in this day and age,
because dgk’s \x is broken… tss…)

not round-trip, as ksh93 doesn’t encode hi-bit7 or \v, but safe
2012-07-20 21:18:45 +00:00
tg 4778a2a62f lesson learned from http://k1024.org/~iusty/blog/entry/perf-null/ – add -DMKSH_SMALL_BUT_FAST which gives more speed (8/20K less cycles, 5/9K less insns, 1.8/2.4k less branches, 65/275 less branch misses) on Debian/amd64 (klibc-static/eglibc) at cost of 0/2 more page faults and 6K/6K more text size 2012-07-01 15:55:00 +00:00
tg cbeac6b381 disable mksh feature -T in lksh 2012-06-26 19:22:19 +00:00
tg ea8f29f428 sprinkle CONSERVATIVE_FDS for many older OSes; DISABLE_TTY_WARNING for BeOS and Coherent (probably more to come); NO_CMDLINE_EDITING to Plan 9; put Hurd NO_PATH_MAX into MKSH__ private namespace 2012-05-05 17:37:44 +00:00
tg 64447e738d my own over-optimisation prevents me from making the MKSH__NO_SYMLINK
case as nice as it could be, since part of the “if (0) {” case is jumped
into for the first run of the loop… thanks RT
2012-05-05 15:10:39 +00:00
tg fef3808126 more symlink(7) nonexistence support code 2012-05-04 22:05:02 +00:00
tg 401116766b generalise the skipping sete{u,g}id() case for Coherent, not just BeOS 2012-05-04 21:57:38 +00:00
tg 5780bc5eb7 new MKSH_NO_CMDLINE_EDITING to disable command line editing in its entirety
mainly for the Plan 9 port though it may also help the WinAPI variant,
other porting efforts, as well as a new project I cannot say yet
2012-05-04 20:49:08 +00:00
tg 7c4bf78446 move bi_getn from misc.c to funcs.c and make it static
even antique gcc versions will usually inline it now
2012-05-04 20:08:25 +00:00
tg 4a89ae1cd0 drop the need for strcasestr: just uppercase a copy and compare with uppercased 2012-04-06 12:59:28 +00:00
tg c30bf73a56 BeOS has no tty nor uid/gid other than 0, a̲n̲d̲ a broken /bin/sh 2012-04-01 16:55:16 +00:00
tg 64afff52c1 winstonw made me discover there is no ELOOP in Plan 9:
http://plan9.bell-labs.com/sources/plan9/sys/include/ape/errno.h
2012-03-26 20:04:05 +00:00
tg 24e8a6996b always keep x_cols and x_lins valid; check once at start including tty init
if we find any, but not later; do not check on every read

⇒ allows changing COLUMNS and LINES (independent of each other, or both)
  for script shells by passing them in an environment setting, even if
  we get a tty; interactive shells still check before each line is read…

reported by the PLD guys, thanks
2012-03-23 21:58:24 +00:00
tg 3795e667c5 drop use of the NOT macro, [^foo] ≠ [!foo] anyway, and we’re not gonna change that 2012-03-23 20:07:13 +00:00
tg c06e3979a8 I hate having to do those year bumps… 2012-01-04 22:38:33 +00:00
tg ac29bad3fe fix regression escaping single-char strings 2012-01-04 19:09:36 +00:00