[patch] Possible floating point exception after RAND_cleanup

[Lutz Jaenicke]

Hi!

When RAND_cleanup() (actually md_rand.c:ssleay_rand_cleanup() is called,
all entropy data is reset, but "initialized" is not reset).
This may lead to a floating point exception in md_rand.c:481
        state_index %= state_num;
because state_num can be 0.
Fix: reset initialized to 0 in ssleay_rand_cleanup().

Impact: probably small, since RAND_bytes() is probably called directly
        after RAND_cleanup() only under test conditions.

Best regards,
        Lutz
-- 
Lutz Jaenicke                             [EMAIL PROTECTED]
BTU Cottbus               http://www.aet.TU-Cottbus.DE/personen/jaenicke/
Lehrstuhl Allgemeine Elektrotechnik                  Tel. +49 355 69-4129
Universitaetsplatz 3-4, D-03044 Cottbus              Fax. +49 355 69-4153

--- md_rand.c.095a      Sat Apr  1 13:09:08 2000
+++ md_rand.c   Tue Aug  8 15:21:41 2000
@@ -234,6 +234,7 @@
        md_count[0]=0;
        md_count[1]=0;
        entropy=0;
+       initialized=0;
        }
 
 static void ssleay_rand_add(const void *buf, int num, double add)