From 81e9f967be0495161975dd7cdf5018646b070520 Mon Sep 17 00:00:00 2001
From: Vincent Penquerc'h <vincent.penquerch@collabora.co.uk>
Date: Sun, 29 Dec 2013 07:08:50 -0500
Subject: [PATCH] vm-file-editor: do not overwite an existing file

Either a housekeeping file from that VM, or a similarly named
one being edited from a third VM.
---
 qubes-rpc/vm-file-editor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qubes-rpc/vm-file-editor.c b/qubes-rpc/vm-file-editor.c
index 83fa972..f37b04a 100644
--- a/qubes-rpc/vm-file-editor.c
+++ b/qubes-rpc/vm-file-editor.c
@@ -44,7 +44,7 @@ char *get_filename()
 
 void copy_file(char *filename)
 {
-	int fd = open(filename, O_WRONLY | O_CREAT, 0600);
+	int fd = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0600);
 	if (fd < 0) {
 		perror("open file");
 		exit(1);