fix "hf mf chk" <t|d|s|ss> flags (based on PR #700) (#718)

[proxmark3-svn] / client / pm3_binlib.c

diff --git a/client/pm3_binlib.c b/client/pm3_binlib.c
index ed46c8e805d76debb2c247a700c9d381878a0d13..cffbca6cd3995f18dae85b5ec1be5236bd8086a2 100644 (file)
--- a/client/pm3_binlib.c
+++ b/client/pm3_binlib.c
@@ -306,7 +306,7 @@ static int l_pack(lua_State *L)             /** pack(f,...) */
         sbyte = 0;
         odd = 0;
       }
-    } else if (isspace(a[ii])) {
+    } else if (isspace((unsigned char)a[ii])) {
       /* ignore */
     } else {
       /* err ... ignore too*/