Hi dear list, Here a patch proposal to have a wrapper around rand/random calls.
If it s ok with this one I ll send the rest. Thanks. Kind regards.
From 01b29c12410dba2797815aed1be602abc435902e Mon Sep 17 00:00:00 2001 From: David Carlier <[email protected]> Date: Wed, 11 Apr 2018 17:20:49 +0100 Subject: [PATCH 1/5] BUILD/MEDIUM: standard: my_srand*/my_rand* functions. BSD families systems have strong random number functions generated with Chacha family algorithms. So we can use it where it seems fit, other systems ought not be affected. --- include/common/standard.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/include/common/standard.h b/include/common/standard.h index 6542759d9..2b1fa133b 100644 --- a/include/common/standard.h +++ b/include/common/standard.h @@ -839,6 +839,50 @@ static inline unsigned int my_ffsl(unsigned long a) return cnt; } +/* my_random call seeding */ +static inline void my_srandom(unsigned int seed) +{ +#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) + (void)seed; +#else + srandom(seed); +#endif +} + +/* Generates long random value */ +static inline long my_random(void) +{ +#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) + long value; + arc4random_buf(&value, sizeof(value)); + return value; +#else + return random(); +#endif +} + +/* my_rand call seeding */ +static inline void my_srand(unsigned int seed) +{ +#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) + (void)seed; +#else + srand(seed); +#endif +} + +/* Generates long random value */ +static inline int my_rand(void) +{ +#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) + int value; + arc4random_buf(&value, sizeof(value)); + return value; +#else + return rand(); +#endif +} + /* Build a word with the <bits> lower bits set (reverse of my_popcountl) */ static inline unsigned long nbits(int bits) { -- 2.16.2
