From: Tyson Smith <[email protected]>
The body of get_len() was the same as rand32() so applying it to a value
from rand32() didn't offer much value. A switch case could be
added that generates other length like values as well. This could include
2^n +/- ~2, page_size +/- 1, MAX_INT... etc.
---
random-length.c | 40 +---------------------------------------
1 file changed, 1 insertion(+), 39 deletions(-)
diff --git a/random-length.c b/random-length.c
index a1a72e3..1ef3dd2 100644
--- a/random-length.c
+++ b/random-length.c
@@ -1,45 +1,7 @@
-#include <stdlib.h>
-
-#include "arch.h" // page_size
#include "sanitise.h"
#include "random.h"
unsigned long get_len(void)
{
- int i = 0;
-
- i = rand32();
-
- /* short circuit if 0 */
- if (i == 0)
- return 0;
-
- switch (rand() % 6) {
-
- case 0: i &= 0xff;
- break;
- case 1: i &= page_size - 1;
- break;
- case 2: i &= 0xffff;
- break;
- case 3: i &= 0xffffff;
- break;
- case 4: i &= 0xffffffff;
- break;
- case 5:
- // Pass through
- break;
- }
-
- /* again, short circuit if 0 */
- if (i == 0)
- return 0;
-
- /* we might get lucky if something is counting ints/longs etc. */
- if (ONE_IN(4)) {
- int _div = 1 << RAND_RANGE(1, 4); /* 2,4,8 or 16 */
- i /= _div;
- }
-
- return i;
+ return rand32();
}
--
1.9.1
--
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