$OpenBSD: patch-src_lmathlib_c,v 1.1 2007/03/15 22:03:37 pedro Exp $
--- src/lmathlib.c.orig	Sun Mar  4 11:10:17 2007
+++ src/lmathlib.c	Sun Mar  4 11:11:40 2007
@@ -181,7 +181,7 @@ static int math_max (lua_State *L) {
 static int math_random (lua_State *L) {
   /* the `%' avoids the (rare) case of r==1, and is needed also because on
      some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */
-  lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX;
+  lua_Number r = (lua_Number)(arc4random()%RAND_MAX) / (lua_Number)RAND_MAX;
   switch (lua_gettop(L)) {  /* check number of arguments */
     case 0: {  /* no arguments */
       lua_pushnumber(L, r);  /* Number between 0 and 1 */
@@ -207,7 +207,7 @@ static int math_random (lua_State *L) {
 
 
 static int math_randomseed (lua_State *L) {
-  srand(luaL_checkint(L, 1));
+  arc4random_stir();
   return 0;
 }