From ed52949e7960693eb2498d20b8e4d4cc06c3a801 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 17 Jul 2009 04:58:38 +0000
Subject: * random.c (fill_random_seed): /dev/urandom is not available on  
 DOSISH systems.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24163 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 random.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'random.c')

diff --git a/random.c b/random.c
index caa33babbd..c504ca22c1 100644
--- a/random.c
+++ b/random.c
@@ -375,19 +375,25 @@ random_init(int argc, VALUE *argv, VALUE obj)
 
 #define DEFAULT_SEED_LEN (DEFAULT_SEED_CNT * sizeof(int))
 
+#if defined(S_ISCHR) && !defined(DOSISH)
+# define USE_DEV_URANDOM 1
+#else
+# define USE_DEV_URANDOM 0
+#endif
+
 static void
 fill_random_seed(unsigned int seed[DEFAULT_SEED_CNT])
 {
     static int n = 0;
     struct timeval tv;
-#ifdef S_ISCHR
+#if USE_DEV_URANDOM
     int fd;
     struct stat statbuf;
 #endif
 
     memset(seed, 0, DEFAULT_SEED_LEN);
 
-#ifdef S_ISCHR
+#if USE_DEV_URANDOM
     if ((fd = open("/dev/urandom", O_RDONLY
 #ifdef O_NONBLOCK
             |O_NONBLOCK
-- 
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