1 files changed, 65 insertions, 0 deletions
diff --git a/pjlib/include/pj/compat/rand.h b/pjlib/include/pj/compat/rand.h
new file mode 100644
index 00000000..31461b37
--- /dev/null
+++ b/pjlib/include/pj/compat/rand.h
@@ -0,0 +1,65 @@
+/* $Header: /pjproject-0.3/pjlib/include/pj/compat/rand.h 3     10/14/05 12:26a Bennylp $ */
+/* $Log: /pjproject-0.3/pjlib/include/pj/compat/rand.h $
+ * 
+ * 3     10/14/05 12:26a Bennylp
+ * Finished error code framework, some fixes in ioqueue, etc. Pretty
+ * major.
+ * 
+ * 2     9/21/05 1:39p Bennylp
+ * Periodic checkin for backup.
+ * 
+ * 1     9/17/05 10:36a Bennylp
+ * Created.
+ * 
+ */
+#ifndef __PJ_COMPAT_RAND_H__
+#define __PJ_COMPAT_RAND_H__
+
+/**
+ * @file rand.h
+ * @brief Provides platform_rand() and platform_srand() functions.
+ */
+
+#if defined(PJ_HAS_STDLIB_H) && PJ_HAS_STDLIB_H != 0
+   /*
+    * Use stdlib based rand() and srand().
+    */
+#  include <stdlib.h>
+#  define platform_srand    srand
+#  if defined(RAND_MAX) && RAND_MAX <= 0xFFFF
+       /*
+        * When rand() is only 16 bit strong, double the strength
+	* by calling it twice!
+	*/
+       PJ_INLINE(int) platform_rand(void)
+       {
+	   return ((rand() & 0xFFFF) << 16) | (rand() & 0xFFFF);
+       }
+#  else
+#      define platform_rand rand
+#  endif
+
+#elif defined(PJ_LINUX_KERNEL) && PJ_LINUX_KERNEL != 0
+   /*
+    * Linux kernel mode random number generator.
+    */
+#  include <linux/random.h>
+#  define platform_srand(seed)
+
+   PJ_INLINE(int) platform_rand(void)
+   {
+     int value;
+     get_random_bytes((void*)&value, sizeof(value));
+     return value;
+   }
+
+#else
+#  warning "platform_rand() is not implemented"
+#  define platform_rand()	1
+#  define platform_srand(seed)
+
+#endif
+
+
+#endif	/* __PJ_COMPAT_RAND_H__ */
+