From ec263fc5a48e425530490b29baf2c512b1ce907f Mon Sep 17 00:00:00 2001
From: Love Hornquist Astrand <lha@h5l.org>
Date: Fri, 25 Sep 2009 14:53:31 -0700
Subject: [PATCH] reading negative size is wrong, zero is ok

---
 lib/hcrypto/rand-unix.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/hcrypto/rand-unix.c b/lib/hcrypto/rand-unix.c
index 2bfa265fa..fcad39f1d 100644
--- a/lib/hcrypto/rand-unix.c
+++ b/lib/hcrypto/rand-unix.c
@@ -95,8 +95,10 @@ unix_bytes(unsigned char *outdata, int size)
     ssize_t count;
     int once = 0;
 
-    if (size <= 0)
+    if (size < 0)
 	return 0;
+    else if (size == 0)
+	return 1;
 
     HEIMDAL_MUTEX_lock(&random_mutex);
     if (random_fd == -1) {