From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Thu, 29 Aug 2019 12:12:45 +0000 (+0300)
Subject: Fixed undefined behaviour in left shift of int value.
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=297dcaef0ac3e21c42f56144492113e2d83ea6fb;p=njs.git

Fixed undefined behaviour in left shift of int value.
---

diff --git a/src/njs_random.c b/src/njs_random.c
index b2fc6743..806b4d16 100644
--- a/src/njs_random.c
+++ b/src/njs_random.c
@@ -166,10 +166,10 @@ njs_random(njs_random_t *r)
         njs_random_stir(r, pid);
     }
 
-    val  = njs_random_byte(r) << 24;
-    val |= njs_random_byte(r) << 16;
-    val |= njs_random_byte(r) << 8;
-    val |= njs_random_byte(r);
+    val  = (uint32_t) njs_random_byte(r) << 24;
+    val |= (uint32_t) njs_random_byte(r) << 16;
+    val |= (uint32_t) njs_random_byte(r) << 8;
+    val |= (uint32_t) njs_random_byte(r);
 
     return val;
 }