From: simon <simon@cda61777-01e9-0310-a592-d414129be87e>
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-Url: https://git.distorted.org.uk/~mdw/sgt/putty/commitdiff_plain/1e4e00c2d5ddbfb7e73f600a0002e74e4f2f6390

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.


git-svn-id: svn://svn.tartarus.org/sgt/putty@9920 cda61777-01e9-0310-a592-d414129be87e
---

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 */
 }