From df40b0828642fad673cfbc9882c38ca9080dedd9 Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Sat, 13 Jul 2013 16:34:40 +0100
Subject: [PATCH] rand/noise.c: Environment variable to force use of
 `noise_filter'.

For debugging, mostly.  Don't use this in real life.
---
 rand/noise.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rand/noise.c b/rand/noise.c
index 6cab8ca8..a1683858 100644
--- a/rand/noise.c
+++ b/rand/noise.c
@@ -32,6 +32,7 @@
 #include <setjmp.h>
 #include <signal.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
 #include <sys/types.h>
@@ -453,7 +454,7 @@ void noise_acquire(rand_pool *r)
   unsigned i;
   for (i = 0; i < 8; i++)
     noise_freewheel(r);
-  if (!noise_devrandom(r)) {
+  if (!noise_devrandom(r) || getenv("CATACOMB_FORCE_ESOTERIC_SOURCES")) {
     noise_enquire(r);
     for (i = 0; i < 8; i++)
       noise_freewheel(r);
-- 
2.11.0