make readonly idempotent; spotted by selk from Dragora

This commit is contained in:
tg 2017-07-26 23:02:28 +00:00
parent ac262e5395
commit b903a5e66a
3 changed files with 17 additions and 10 deletions

13
check.t
View File

@ -1,4 +1,4 @@
# $MirOS: src/bin/mksh/check.t,v 1.793 2017/05/14 19:05:44 tg Exp $
# $MirOS: src/bin/mksh/check.t,v 1.794 2017/07/26 23:02:23 tg Exp $
# -*- mode: sh -*-
#-
# Copyright © 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
@ -30,7 +30,7 @@
# (2013/12/02 20:39:44) http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/regress/bin/ksh/?sortby=date
expected-stdout:
@(#)MIRBSD KSH R55 2017/05/05
@(#)MIRBSD KSH R55 2017/07/26
description:
Check base version of full shell
stdin:
@ -39,7 +39,7 @@ name: KSH_VERSION
category: !shell:legacy-yes
---
expected-stdout:
@(#)LEGACY KSH R55 2017/05/01
@(#)LEGACY KSH R55 2017/07/26
description:
Check base version of legacy shell
stdin:
@ -6906,6 +6906,13 @@ expected-exit: e != 0
expected-stderr-pattern:
/read[ -]?only/
---
name: readonly-5
description:
Ensure readonly is idempotent
stdin:
readonly x=1
readonly x
---
name: syntax-1
description:
Check that lone ampersand is a syntax error

4
sh.h
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@ -175,9 +175,9 @@
#endif
#ifdef EXTERN
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.836 2017/05/05 22:53:30 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.837 2017/07/26 23:02:27 tg Exp $");
#endif
#define MKSH_VERSION "R55 2017/05/05"
#define MKSH_VERSION "R55 2017/07/26"
/* arithmetic types: C implementation */
#if !HAVE_CAN_INTTYPES

10
var.c
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@ -28,7 +28,7 @@
#include <sys/sysctl.h>
#endif
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.219 2017/05/05 22:53:32 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.220 2017/07/26 23:02:28 tg Exp $");
/*-
* Variables
@ -917,12 +917,12 @@ typeset(const char *var, uint32_t set, uint32_t clr, int field, int base)
vpbase = (vp->flag & ARRAY) ? global(arrayname(tvar)) : vp;
/*
* only allow export flag to be set; AT&T ksh allows any
* attribute to be changed which means it can be truncated or
* modified (-L/-R/-Z/-i)
* only allow export and readonly flag to be set; AT&T ksh
* allows any attribute to be changed which means it can be
* truncated or modified (-L/-R/-Z/-i)
*/
if ((vpbase->flag & RDONLY) &&
(val || clr || (set & ~EXPORT)))
(val || clr || (set & ~(EXPORT | RDONLY))))
/* XXX check calls - is error here ok by POSIX? */
errorfx(2, Tf_ro, tvar);
afree(tvar, ATEMP);