From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Mon, 6 Feb 2017 09:59:00 +0000 (+0100)
Subject: core: close GPIO chip device files on exec
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2edebcbf9906093fdf088cfe790e6f9fe98ba4f2;p=qemu-gpiodev%2Flibgpiod.git

core: close GPIO chip device files on exec

Pass the O_CLOEXEC flag to open() so that we don't leak open GPIO
chip descriptors to any processes spawned by users of the library.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
---

diff --git a/src/lib/core.c b/src/lib/core.c
index 71ac7d2..f5beeb7 100644
--- a/src/lib/core.c
+++ b/src/lib/core.c
@@ -899,7 +899,7 @@ struct gpiod_chip * gpiod_chip_open(const char *path)
 	struct gpiod_chip *chip;
 	int status, fd;
 
-	fd = open(path, O_RDWR);
+	fd = open(path, O_RDWR | O_CLOEXEC);
 	if (fd < 0) {
 		last_error_from_errno();
 		return NULL;