Mesa (master): egl/android: replace call to dup(2) with fcntl( F_DUPFD_CLOEXEC)

[Nicolai Hähnle]

Module: Mesa
Branch: master
Commit: c8fd7d060d000a89f08f690ec72349ab97ae41bc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c8fd7d060d000a89f08f690ec72349ab97ae41bc

Author: Matt Whitlock <freedesktop at mattwhitlock.name>
Date:   Sat Oct  1 23:49:41 2016 -0400

egl/android: replace call to dup(2) with fcntl(F_DUPFD_CLOEXEC)

Without this fix, duplicated file descriptors leak into child processes.
See commit aaac913e901229d11a1894f6aaf646de6b1a542c for one instance
where the same fix was employed.

Cc: <mesa-stable at lists.freedesktop.org>
Signed-off-by: Matt Whitlock <freedesktop at mattwhitlock.name>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

---

 src/egl/drivers/dri2/platform_android.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/egl/drivers/dri2/platform_android.c b/src/egl/drivers/dri2/platform_android.c
index 2e0df07..f868984 100644
--- a/src/egl/drivers/dri2/platform_android.c
+++ b/src/egl/drivers/dri2/platform_android.c
@@ -29,6 +29,7 @@
 
 #include <errno.h>
 #include <dlfcn.h>
+#include <fcntl.h>
 #include <xf86drm.h>
 
 #if ANDROID_VERSION >= 0x402
@@ -830,7 +831,7 @@ droid_open_device(void)
       fd = -1;
    }
 
-   return (fd >= 0) ? dup(fd) : -1;
+   return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
 }
 
 /* support versions < JellyBean */