From 8ce89a914e832160e28ef9c312f7ffc105d43967 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian.jackson@eu.citrix.com>
Date: Fri, 23 Oct 2015 16:44:11 +0100
Subject: [PATCH] xl: Die on unknown options

def_getopt would print a message to stderr, but blunder on anyway.

Sadly this is probably not a backport candidate.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
---
 tools/libxl/xl_cmdimpl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 646b2817d2..be4081854e 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -3179,6 +3179,7 @@ static int def_getopt(int argc, char * const argv[],
             exit(0);
         }
         fprintf(stderr, "option `%c' not supported.\n", optopt);
+        exit(2);
     }
     if (opt == 'h') {
         help(helpstr);
-- 
2.39.5