--- libvirt-0.8.7.orig/src/storage/storage_backend.c	2010-12-22 09:54:05.000000000 +0100
+++ libvirt-0.8.7/src/storage/storage_backend.c	2011-01-12 18:30:49.000000000 +0100
@@ -131,7 +131,7 @@ virStorageBackendCopyToFD(virStorageVolD
         goto cleanup;
     }
 
-    bzero(&zerobuf, sizeof(zerobuf));
+    memset(&zerobuf, 0, sizeof(zerobuf));
 
     if (VIR_ALLOC_N(buf, bytes) < 0) {
         ret = -errno;
