Date: Sun, 29 Apr 2001 23:45:26 -0700 (PDT) From: kiss@gizzywump.com To: FreeBSD-gnats-submit@freebsd.org Cc: kris@obsecurity.org, kiss@gizzywump.com Subject: ports/26979: ports/lang/lua patch Message-ID: <200104300645.f3U6jQU27162@kalamalka.gizzywump.com>
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>Number: 26979
>Category: ports
>Synopsis: lang/lua port patch to improve randomness
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-ports
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: update
>Submitter-Id: current-users
>Arrival-Date: Sun Apr 29 23:50:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Richard Kiss
>Release: FreeBSD 4.3-STABLE i386
>Organization:
>Environment:
System: FreeBSD kalamalka.gizzywump.com 4.3-STABLE FreeBSD 4.3-STABLE #1: Sun Apr 22 22:39:33 PDT 2001 root@kalamalka.gizzywump.com:/mnt/usr/obj/mnt/usr/src/sys/GIZZYWUMP i386
>Description:
Patch by Kris Kennaway to use random/srandom rather than
rand/srand to improve randomness.
>How-To-Repeat:
N/A
>Fix:
Here is the patch:
--- /dev/null Mon Apr 30 00:07:15 2001
+++ files/patch-ab Mon Apr 30 00:06:33 2001
@@ -0,0 +1,20 @@
+--- src/lib/lmathlib.c.orig Mon Apr 30 00:05:45 2001
++++ src/lib/lmathlib.c Mon Apr 30 00:06:05 2001
+@@ -168,7 +168,7 @@
+ 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 */
+- double r = (double)(rand()%RAND_MAX) / (double)RAND_MAX;
++ double r = (double)(random()%RAND_MAX) / (double)RAND_MAX;
+ switch (lua_gettop(L)) { /* check number of arguments */
+ case 0: { /* no arguments */
+ lua_pushnumber(L, r); /* Number between 0 and 1 */
+@@ -194,7 +194,7 @@
+
+
+ static int math_randomseed (lua_State *L) {
+- srand(luaL_check_int(L, 1));
++ srandom(luaL_check_int(L, 1));
+ return 0;
+ }
+
>Release-Note:
>Audit-Trail:
>Unformatted:
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