Fix buffer overflow in check_zoneconf

Removing these two lines prevents the buffer overflow at startup.

diff --git a/lib/bind9/check.c b/lib/bind9/check.c
index b562869a183f19f55c5764e6770d896d1e16e68c..38602496102cd2a83ef84e6dbfd0d05208a19b86 100644 (file)
--- a/lib/bind9/check.c
+++ b/lib/bind9/check.c
@@ -1999,8 +1999,6 @@ check_zoneconf(const cfg_obj_t *zconfig, const cfg_obj_t *voptions,
                        rfc1918 = true;
                else if (dns_name_isula(zname))
                        ula = true;
-               tmp += strlen(tmp);
-               len -= strlen(tmp);
                (void)snprintf(tmp, len, "%u/%s", zclass,
                               (ztype == CFG_ZONE_INVIEW) ? target :
                                (viewname != NULL) ? viewname : "_default");