Don't free blockdata for negative DS cache entries.

src/cache.c

@@ -183,7 +183,7 @@ static void cache_blockdata_free(struct crec *crecp)
       else
 	blockdata_free(crecp->addr.key.keydata);
     }
-  else if (crecp->flags & F_DS)
+  else if ((crecp->flags & F_DS) && !(crecp->flags & F_NEG))
     blockdata_free(crecp->addr.ds.keydata);
 }
 #endif

src/dnssec.c

@@ -353,7 +353,7 @@ static void from_wire(char *name)
       l[len] = '.';
     }
 
-  if (l != name)
+  if ((char *)l != name)
     *(l-1) = 0;
 }