From 4f142f279468a2d2d2500555e00649db9e74836f Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@users.sourceforge.net>
Date: Mon, 16 Apr 2012 11:26:09 +0000
Subject: 30413: (q-) parameter flag should quote null string (q-q) etc. should
 be treated as errors

---
 Src/subst.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Src/subst.c')

diff --git a/Src/subst.c b/Src/subst.c
index 04ef1a4fb..dac536f14 100644
--- a/Src/subst.c
+++ b/Src/subst.c
@@ -1828,6 +1828,10 @@ paramsubst(LinkList l, LinkNode n, char **str, int qt, int pf_flags)
 			quotemod = 1;
 			quotetype = QT_SINGLE_OPTIONAL;
 		    } else {
+			if (quotetype == QT_SINGLE_OPTIONAL) {
+			    /* extra q's after '-' not allowed */
+			    goto flagerr;
+			}
 			quotemod++, quotetype++;
 		    }
 		    break;
-- 
cgit 1.4.1