From 6148c6944469d629a94a1695eb91989030762ffc Mon Sep 17 00:00:00 2001
From: Zhicheng Wei <zhicheng@opensourceforge.net>
Date: Sat, 16 Feb 2019 17:19:45 +0800
Subject: [PATCH] fix gcc warning, thanks Paul Smith @madscientist

---
 base64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/base64.c b/base64.c
index 8e5efb2..2b5c236 100644
--- a/base64.c
+++ b/base64.c
@@ -135,7 +135,7 @@ base64_decode(const char *in, unsigned int inlen, unsigned char *out)
 			return 0;
 		}
 
-		c = base64de[in[i]];
+		c = base64de[(unsigned char)in[i]];
 		if (c == 255) {
 			return 0;
 		}