From 7054379384884f0975c687ce9b2cd8c20e3f2c12 Mon Sep 17 00:00:00 2001
From: Ken Hornstein <kenh@pobox.com>
Date: Sun, 14 Aug 2016 13:25:51 -0400
Subject: [PATCH] Use isascii() with isprint(), since using isprint() on bytes
 > 127 is undefined.

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

diff --git a/sbr/base64.c b/sbr/base64.c
index 9047eb5f..eb3c8ea2 100644
--- a/sbr/base64.c
+++ b/sbr/base64.c
@@ -339,7 +339,7 @@ hexify (const unsigned char *input, size_t len, char **output) {
     size_t i;
 
     for (i = 0; i < len; ++i, ++cp) {
-        if (isprint(*cp)) {
+        if (isascii(*cp) && isprint(*cp)) {
             charstring_push_back (tmp, (const char) *cp);
         } else {
             char s[16];
-- 
2.48.1