From: Simon Tatham <anakin@pobox.com>
Date: Sun, 14 Jul 2013 10:46:17 +0000 (+0000)
Subject: Add a missing null pointer check in wc_unescape, to bring it in line
X-Git-Tag: 0.63~72
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=74cf14e4ebc2c3190e35095ad2d11336c4b4bc2c;p=PuTTY.git

Add a missing null pointer check in wc_unescape, to bring it in line
with the usage comment saying you're allowed to pass NULL to find out
only the return value. No caller actually does pass NULL at the
moment.

[originally from svn r9920]
---

diff --git a/wildcard.c b/wildcard.c
index ae8bad80..c1cb0b49 100644
--- a/wildcard.c
+++ b/wildcard.c
@@ -326,7 +326,8 @@ int wc_unescape(char *output, const char *wildcard)
 	    wildcard++;
 	}
     }
-    *output = '\0';
+    if (output)
+        *output = '\0';
     return 1;			       /* it's clean */
 }