From: simon <simon@cda61777-01e9-0310-a592-d414129be87e>
Date: Wed, 24 Nov 2004 19:53:31 +0000 (+0000)
Subject: random_init() should be called at most once during the running of
X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/commitdiff_plain/bc0e1c6cb91cbf8bed2ba44e44c5e46209524e90?hp=590f6a5ffcb58408a57a82ee2f70e686421a53ed

random_init() should be called at most once during the running of
PuTTY, even if it's managing multiple sessions.


git-svn-id: svn://svn.tartarus.org/sgt/putty@4900 cda61777-01e9-0310-a592-d414129be87e
---

diff --git a/sshrand.c b/sshrand.c
index 524bbd43..a7b3dc4e 100644
--- a/sshrand.c
+++ b/sshrand.c
@@ -184,12 +184,14 @@ static void random_add_heavynoise_bitbybit(void *noise, int length)
 
 void random_init(void)
 {
-    memset(&pool, 0, sizeof(pool));    /* just to start with */
+    if (!random_active) {
+	memset(&pool, 0, sizeof(pool));    /* just to start with */
 
-    random_active = 1;
+	random_active = 1;
 
-    noise_get_heavy(random_add_heavynoise_bitbybit);
-    random_stir();
+	noise_get_heavy(random_add_heavynoise_bitbybit);
+	random_stir();
+    }
 }
 
 int random_byte(void)