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BASH PATCH REPORT
=================
Bash-Release: 4.2
Patch-ID: bash42-032
Bug-Reported-by: Ruediger Kuhlmann <RKuhlmann@orga-systems.com>
Bug-Reference-ID: <OFDE975207.0C3622E5-ONC12579F3.00361A06-C12579F3.00365E39@orga-systems.com>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2012-05/msg00010.html
Bug-Description:
Bash-4.2 has problems with DEL characters in the expanded value of variables
used in the same quoted string as variables that expand to nothing.
Patch (apply with `patch -p0'):
Index: b/bash/patchlevel.h
===================================================================
--- a/bash/patchlevel.h
+++ b/bash/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 31
+#define PATCHLEVEL 32
#endif /* _PATCHLEVEL_H_ */
Index: b/bash/subst.c
===================================================================
--- a/bash/subst.c
+++ b/bash/subst.c
@@ -8151,6 +8151,14 @@
temp = tword->word;
dispose_word_desc (tword);
+ /* Kill quoted nulls; we will add them back at the end of
+ expand_word_internal if nothing else in the string */
+ if (had_quoted_null && temp && QUOTED_NULL (temp))
+ {
+ FREE (temp);
+ temp = (char *)NULL;
+ }
+
goto add_string;
break;
@@ -8555,7 +8563,7 @@
tword->flags |= W_NOEXPAND; /* XXX */
if (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES))
tword->flags |= W_QUOTED;
- if (had_quoted_null)
+ if (had_quoted_null && QUOTED_NULL (istring))
tword->flags |= W_HASQUOTEDNULL;
list = make_word_list (tword, (WORD_LIST *)NULL);
}
@@ -8586,7 +8594,7 @@
tword->flags |= W_NOGLOB;
if (word->flags & W_NOEXPAND)
tword->flags |= W_NOEXPAND;
- if (had_quoted_null)
+ if (had_quoted_null && QUOTED_NULL (istring))
tword->flags |= W_HASQUOTEDNULL; /* XXX */
list = make_word_list (tword, (WORD_LIST *)NULL);
}
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