From: Tyson Smith <tysmith@xxxxxxxxxxxx>
Removed the block at the beginning of rand32() that just basically |s and ^s
rand() with rand() or a more interesting number to basically get rand again.
This is just an expensive way of getting a random number. Merged the small
switch case from __rand32() in to rand32() now that there is room.
---
random.c | 31 ++-----------------------------
1 file changed, 2 insertions(+), 29 deletions(-)
diff --git a/random.c b/random.c
index bf32648..ec20656 100644
--- a/random.c
+++ b/random.c
@@ -106,10 +106,9 @@ static unsigned long rept_byte(void)
}
/*
- * "selector" function for 32bit random.
- * only called from rand32()
+ * Generate, and munge a 32bit number.
*/
-static unsigned int __rand32(void)
+unsigned int rand32(void)
{
unsigned long r = 0;
@@ -125,32 +124,6 @@ static unsigned int __rand32(void)
case 4: return get_interesting_value();
}
- return r;
-}
-
-/*
- * Generate, and munge a 32bit number.
- */
-unsigned int rand32(void)
-{
- unsigned long r = 0;
-
- r = __rand32();
-
- if (rand_bool()) {
- unsigned int i;
- unsigned int rounds;
-
- /* mangle it. */
- rounds = rand() % 3;
- for (i = 0; i < rounds; i++) {
- if (rand_bool())
- r |= __rand32();
- else
- r ^= __rand32();
- }
- }
-
/* Sometimes deduct it from INT_MAX */
if (rand_bool())
r = INT_MAX - r;
--
1.9.1
--
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