From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Sat, 24 Feb 2018 14:06:32 +0000 (+0100)
Subject: lxccontainer: config_file_exists()
X-Git-Tag: lxc-2.0.10~231
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6ed2b26826e722462cbb08978133432fffabcbf;p=thirdparty%2Flxc.git

lxccontainer: config_file_exists()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/lxccontainer.c b/src/lxc/lxccontainer.c
index d3bf0874b..c6e9b93f1 100644
--- a/src/lxc/lxccontainer.c
+++ b/src/lxc/lxccontainer.c
@@ -113,12 +113,15 @@ static bool do_lxcapi_save_config(struct lxc_container *c, const char *alt_file)
 
 static bool config_file_exists(const char *lxcpath, const char *cname)
 {
-	/* $lxcpath + '/' + $cname + '/config' + \0 */
-	int ret, len = strlen(lxcpath) + strlen(cname) + 9;
-	char *fname = alloca(len);
+	int ret;
+	size_t len;
+	char *fname;
 
-	ret = snprintf(fname, len,  "%s/%s/config", lxcpath, cname);
-	if (ret < 0 || ret >= len)
+	/* $lxcpath + '/' + $cname + '/config' + \0 */
+	len = strlen(lxcpath) + strlen(cname) + 9;
+	fname = alloca(len);
+	ret = snprintf(fname, len, "%s/%s/config", lxcpath, cname);
+	if (ret < 0 || (size_t)ret >= len)
 		return false;
 
 	return file_exists(fname);