From d66e7ce6169b0a384f7a77b0f764cd6bc894f1d0 Mon Sep 17 00:00:00 2001
From: Peter Krempa <pkrempa@redhat.com>
Date: Fri, 13 Sep 2013 14:35:34 +0200
Subject: [PATCH] util: Declare that virFileExists shall honor errno

Explicitly state that some parts of the code may require virFileExists
to set or preserve a correct errno so that future modifications don't
break.
---
 src/util/virfile.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/util/virfile.c b/src/util/virfile.c
index feac3c98e1..a7635f45b6 100644
--- a/src/util/virfile.c
+++ b/src/util/virfile.c
@@ -1477,6 +1477,12 @@ virFileIsDir(const char *path)
     return (stat(path, &s) == 0) && S_ISDIR(s.st_mode);
 }
 
+/**
+ * virFileExists: Check for presence of file
+ * @path: Path of file to check
+ *
+ * Returns if the file exists. Preserves errno in case it does not exist.
+ */
 bool
 virFileExists(const char *path)
 {