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 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 */
 }