Add a missing null pointer check in wc_unescape, to bring it in line

[u/mdw/putty] / wildcard.c

diff --git a/wildcard.c b/wildcard.c
index ae8bad8..c1cb0b4 100644 (file)
--- 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 */
 }