From 1b39bad10931fb2e5240ed1362a2b5cc79445dff Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Thu, 26 Feb 2009 22:06:11 +0200
Subject: [PATCH] WPS UFD: Handle scandir() error and no matches results
 differently

Better make sure there are no memory leaks in case of 0 entries
found. In addition, the error string may be of use in the error case.
---
 src/wps/wps_ufd.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/wps/wps_ufd.c b/src/wps/wps_ufd.c
index 56b263528..6f40c5bca 100644
--- a/src/wps/wps_ufd.c
+++ b/src/wps/wps_ufd.c
@@ -61,8 +61,14 @@ static int wps_get_dev_pwd_e_file_name(char *path, char *file_name)
 
 	file_num = scandir(path, &namelist, &dev_pwd_e_file_filter,
 			   alphasort);
-	if (file_num <= 0) {
+	if (file_num < 0) {
+		wpa_printf(MSG_ERROR, "WPS: OOB file not found: %d (%s)",
+			   errno, strerror(errno));
+		return -1;
+	}
+	if (file_num == 0) {
 		wpa_printf(MSG_ERROR, "WPS: OOB file not found");
+		os_free(namelist);
 		return -1;
 	}
 	os_strlcpy(file_name, namelist[0]->d_name, 13);