gatutil: Handle non-printable characters

Signed arithmetic and shifts do not work well...

diff --git a/gatchat/gatutil.c b/gatchat/gatutil.c
index cbe3879..827dc60 100644 (file)
--- a/gatchat/gatutil.c
+++ b/gatchat/gatutil.c
@@ -70,7 +70,7 @@ void g_at_util_debug_chat(gboolean in, const char *str, gsize len,
        escaped_str[escaped] = '\0';
 
        for (escaped = 2, i = 0; i < len; i++) {
-               char c = str[i];
+               unsigned char c = str[i];
 
                switch (c) {
                case '\r':