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From 594ffed82f4e6ee7da85e9c5da35e32946ae32c9 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 11 Feb 2015 01:37:01 -0500
Subject: [PATCH] fix bad character checking in wordexp
the character sequence '$((' was incorrectly interpreted as the
opening of arithmetic even within single-quoted contexts, thereby
suppressing the checks for bad characters after the closing quote.
presently bad character checking is only performed when the WRDE_NOCMD
is used; this patch only corrects checking in that case.
---
src/misc/wordexp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/misc/wordexp.c b/src/misc/wordexp.c
index a5f1b65..db39b5b 100644
--- a/src/misc/wordexp.c
+++ b/src/misc/wordexp.c
@@ -77,6 +77,7 @@ static int do_wordexp(const char *s, wordexp_t *we, int flags)
if (!(sq|dq|np)) return WRDE_BADCHAR;
break;
case '$':
+ if (sq) break;
if (s[i+1]=='(' && s[i+2]=='(') {
i += 2;
np += 2;
--
2.3.3
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