From: Mika Lindqvist <postmaster@raasu.org>
Date: Thu, 21 Sep 2017 17:16:20 +0000 (+0300)
Subject: [Issue #126] Fix implicit cast from unsigned char to int.
X-Git-Tag: 1.9.9-b1~659^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F127%2Fhead;p=thirdparty%2Fzlib-ng.git

[Issue #126] Fix implicit cast from unsigned char to int.
---

diff --git a/inflate.c b/inflate.c
index 1b5a5548..04f827c3 100644
--- a/inflate.c
+++ b/inflate.c
@@ -483,7 +483,7 @@ static int updatewindow(z_stream *strm, const unsigned char *end, uint32_t copy)
     do { \
         if (have == 0) goto inf_leave; \
         have--; \
-        hold += (*next++ << bits); \
+        hold += ((unsigned)(*next++) << bits); \
         bits += 8; \
     } while (0)