From 29c86ae6f5a4b44b1c5c7ee1e16366d8c44e33ea Mon Sep 17 00:00:00 2001
From: comex
Date: Tue, 15 Nov 2016 22:00:01 -0500
Subject: avoid UB

---
 lib/darwin/read.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib/darwin/read.c')

diff --git a/lib/darwin/read.c b/lib/darwin/read.c
index 2e5b746..a0a5d8e 100644
--- a/lib/darwin/read.c
+++ b/lib/darwin/read.c
@@ -9,11 +9,11 @@ bool read_leb128(void **ptr, void *end, bool is_signed, uint64_t *out) {
             return false;
         bit = *p++;
         uint64_t k = bit & 0x7f;
-        if (shift < sizeof(uint64_t) * 8)
+        if (shift < 64)
             result |= k << shift;
         shift += 7;
     } while (bit & 0x80);
-    if (is_signed && (bit & 0x40))
+    if (is_signed && (bit & 0x40) && shift < 64)
         result |= ~((uint64_t) 0) << shift;
     *ptr = p;
     if (out)
-- 
cgit v1.2.3