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fix "$-" expansion for posix option (re: 921bbcae)

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In the SHOPT_BASH code, the -o posix option was given a '\374'
(0xFC, 252) single-letter option character. Reasons unclear. The
'set' builtin doesn't accept it. It can be omitted and the option
still works. And it caused the "$-" expansion (listing active
short-form options) to include that invalid high-bit character if
the -o posix option is active, which is clearly wrong.

src/cmd/ksh93/sh/args.c: optksh[], flagval[]:
- Remove '\374' one-letter option equivalent for SH_POSIX.

src/cmd/ksh93/tests/options.sh:
- Add test verifying that '-o posix' does not affect "$-".
This commit is contained in:
Martijn Dekker 2020-09-04 20:51:29 +02:00
parent bec6556236
commit 3ede73aa33
2 changed files with 12 additions and 2 deletions
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3
src/cmd/ksh93/sh/args.c
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@ -54,13 +54,12 @@
static char *null;
/* The following order is determined by sh_optset */
static const char optksh[] = PFSHOPT "\374" "DircabefhkmnpstuvxBCGEl" HFLAG;
static const char optksh[] = PFSHOPT "DircabefhkmnpstuvxBCGEl" HFLAG;
static const int flagval[] =
{
#if SHOPT_PFSH
SH_PFSH,
#endif
SH_POSIX,
SH_DICTIONARY, SH_INTERACTIVE, SH_RESTRICTED, SH_CFLAG,
SH_ALLEXPORT, SH_NOTIFY, SH_ERREXIT, SH_NOGLOB, SH_TRACKALL,
SH_KEYWORD, SH_MONITOR, SH_NOEXEC, SH_PRIVILEGED, SH_SFLAG, SH_TFLAG,