From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 11 Feb 2015 06:37:01 +0000 (-0500)
Subject: fix bad character checking in wordexp
X-Git-Tag: v1.1.7~50
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=594ffed82f4e6ee7da85e9c5da35e32946ae32c9;p=oweals%2Fmusl.git

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.
---

diff --git a/src/misc/wordexp.c b/src/misc/wordexp.c
index a5f1b658..db39b5b8 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;