wpa_supplicant/wpa-supplicant-log-file-cloexec.patch

From a386bc4950e02975ba9a21a5be82e91a53ec9281 Mon Sep 17 00:00:00 2001
From: Karol Babioch <karol@babioch.de>
Date: Thu, 11 Oct 2018 21:22:03 +0200
Subject: [PATCH v3 2/2] Enable the close-on-exec flag for the debug log file
 descriptor

On Linux this flag will make sure that no file descriptor is accidentally
leaked into potential child processes. While this is not a problem right now,
it is considered to be good practice these days when dealing with file
descriptors on the Linux.

Signed-off-by: Karol Babioch <karol@babioch.de>
---
 src/utils/wpa_debug.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/utils/wpa_debug.c b/src/utils/wpa_debug.c
index 5d2f7becb..12873737c 100644
--- a/src/utils/wpa_debug.c
+++ b/src/utils/wpa_debug.c
@@ -60,6 +60,9 @@ static int wpa_to_android_level(int level)
 #ifdef CONFIG_DEBUG_FILE
 #include <sys/types.h>
 #include <sys/stat.h>
+#ifdef __linux__
+#include <fcntl.h>
+#endif /* __linux__ */
 
 static FILE *out_file = NULL;
 #endif /* CONFIG_DEBUG_FILE */
@@ -566,6 +569,13 @@ int wpa_debug_open_file(const char *path)
 		close(out_fd);
 		return -1;
 	}
+
+#ifdef __linux__
+	if (fcntl(out_fd, F_SETFD, FD_CLOEXEC) == -1) {
+		wpa_printf(MSG_ERROR, "wpa_debug_open_file: Failed to set O_CLOEXEC "
+			   "on output file descriptor, using standard output");
+	}
+#endif /* __linux__ */
 #ifndef _WIN32
 	setvbuf(out_file, NULL, _IOLBF, 0);
 #endif /* _WIN32 */
-- 
2.19.1