X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/757221f5d6db8f1d9447d59c71a9807c6a9f522f..556826b5d52152450259311c613695ee5adcac04:/client/scripting.c

diff --git a/client/scripting.c b/client/scripting.c
index 0c761cb2..232da889 100644
--- a/client/scripting.c
+++ b/client/scripting.c
@@ -15,6 +15,7 @@
 #include <lualib.h>
 #include <lauxlib.h>
 #include "proxmark3.h"
+#include "comms.h"
 #include "usb_cmd.h"
 #include "cmdmain.h"
 #include "util.h"
@@ -220,7 +221,7 @@ static int l_iso14443b_crc(lua_State *L)
 	unsigned char buf[USB_CMD_DATA_SIZE];
 	size_t len = 0;
 	const char *data = luaL_checklstring(L, 1, &len);
-	if (USB_CMD_DATA_SIZE < len)
+	if (len > USB_CMD_DATA_SIZE-2)
 		len =  USB_CMD_DATA_SIZE-2;
 
 	for (int i = 0; i < len; i += 2) {