From 425f5e6d40d756dabef4354fec562c6de2c56efd Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 14 Sep 2016 10:58:00 -0400
Subject: [PATCH] Fix a bogus memwipe length in rend_service_load_auth_keys().

Bugfix on a4f46ff8ba43b1e635bc5a8543b9354e6de02e14. Found by Coverity.
---
 src/or/rendservice.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/or/rendservice.c b/src/or/rendservice.c
index 4f7d7aa726..114a56b74e 100644
--- a/src/or/rendservice.c
+++ b/src/or/rendservice.c
@@ -1490,7 +1490,7 @@ rend_service_load_auth_keys(rend_service_t *s, const char *hfname)
   strmap_free(parsed_clients, rend_authorized_client_strmap_item_free);
 
   if (cfname) {
-    memwipe(cfname, 0, sizeof(cfname));
+    memwipe(cfname, 0, strlen(cfname));
     tor_free(cfname);
   }