Update man page for puttygen --random-device.

[PuTTY.git] / wildcard.c

diff --git a/wildcard.c b/wildcard.c
index ae8bad80a675d4ddc12633499996e061390f7cb2..c1cb0b49e657169493aacb48a0d1454426a987e8 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 */
 }