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permit 'read -A/-a arr[idx]' as long as only one element is read;

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fix corruption of array indicēs with this construct (LP#1533396)
This commit is contained in:
tg
2016-01-14 22:49:33 +00:00
parent 0141794c2e
commit 1b0e4f54cb
3 changed files with 28 additions and 10 deletions
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6
var.c
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@ -28,7 +28,7 @@
#include <sys/sysctl.h>
#endif
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.196 2016/01/14 20:21:39 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.197 2016/01/14 22:49:33 tg Exp $");
/*-
* Variables
@ -295,6 +295,7 @@ global(const char *n)
if (special(vn))
vp->flag |= SPECIAL;
out:
last_lookup_was_array = array;
if (vn != n)
afree(vname.rw, ATEMP);
return (vp);
@ -345,6 +346,7 @@ local(const char *n, bool copy)
if (special(vn))
vp->flag |= SPECIAL;
out:
last_lookup_was_array = array;
if (vn != n)
afree(vname.rw, ATEMP);
return (vp);
@ -1486,7 +1488,7 @@ arrayname(const char *str)
const char *p;
char *rv;
if ((p = cstrchr(str, '[')) == 0)
if (!(p = cstrchr(str, '[')))
/* Shouldn't happen, but why worry? */
strdupx(rv, str, ATEMP);
else