[tor-commits] [tor/master] Fix some RNG function issues

[nickm at torproject.org]

commit 9a81ed1d238e952429a53e7b38a4b6dd4bc5554a
Author: Nick Mathewson <nickm at torproject.org>
Date:   Thu Apr 23 11:13:51 2015 -0400

    Fix some RNG function issues
---
 src/common/crypto.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/common/crypto.c b/src/common/crypto.c
index f338114..7857a54 100644
--- a/src/common/crypto.c
+++ b/src/common/crypto.c
@@ -2330,9 +2330,7 @@ crypto_rand_int_range(unsigned int min, unsigned int max)
   tor_assert(max <= INT_MAX);
 
   /* The overflow is avoided here because crypto_rand_int() returns a value
-   * between 0 and (max - min - 1) with max being <= INT_MAX and min <= max.
-   * This is why we add 1 to the maximum value so we can actually get max as
-   * a return value. */
+   * between 0 and (max - min) inclusive. */
   return min + crypto_rand_int(max - min);
 }
 
@@ -2352,7 +2350,7 @@ crypto_rand_time_range(time_t min, time_t max)
 }
 
 /** Return a pseudorandom 64-bit integer, chosen uniformly from the values
- * between 0 and <b>max</b>-1. */
+ * between 0 and <b>max</b>-1 inclusive. */
 uint64_t
 crypto_rand_uint64(uint64_t max)
 {