rand/noise.c: Environment variable to force use of `noise_filter'.

For debugging, mostly.  Don't use this in real life.

diff --git a/rand/noise.c b/rand/noise.c
index 6cab8ca..a168385 100644 (file)
--- 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);