New function random_range().

diff --git a/include/random.h b/include/random.h
index 92e2cb3bbee0f5e6cc7801163d03d72dcdd63ae1..d9f5f9d08aee6d45125a635335063bfe3430d31f 100644 (file)
--- a/include/random.h
+++ b/include/random.h
@@ -39,5 +39,6 @@
 
 void random_bytes(void *, size_t);
 uint32_t random_uint32(void);
+int random_range(int max);
 
 #endif /* random.h */

diff --git a/lib/random.c b/lib/random.c
index 55507e027ed30aa58cff2723cfc51afaff5c2028..d5d8b957fb39876e4ce9115726440cd3c07a12cd 100644 (file)
--- a/lib/random.c
+++ b/lib/random.c
@@ -70,3 +70,9 @@ random_uint32(void)
     random_bytes(&x, sizeof x);
     return x;
 }
+
+int
+random_range(int max) 
+{
+    return random_uint32() % max;
+}