From 2dc729f17a45a4699a099a219ee18124904f94fa Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Sat, 9 Jul 2016 15:19:31 -0700
Subject: [PATCH] VFS: VFileFromFD should not open directories

---
 CHANGES               | 1 +
 src/util/vfs/vfs-fd.c | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/CHANGES b/CHANGES
index 09405880c..d98741f8b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -31,6 +31,7 @@ Bugfixes:
  - GBA BIOS: Fix ArcTan2 accuracy and boundary conditions
  - SDL: Fix sporadic crash when deinitializing audio
  - GBA Audio: Reset audio FIFO DMA if an invalid destination is set
+ - VFS: VFileFromFD should not open directories
 Misc:
  - GBA: Slightly optimize GBAProcessEvents
  - Qt: Add preset for DualShock 4
diff --git a/src/util/vfs/vfs-fd.c b/src/util/vfs/vfs-fd.c
index ec8abfb09..5b96f58b5 100644
--- a/src/util/vfs/vfs-fd.c
+++ b/src/util/vfs/vfs-fd.c
@@ -52,6 +52,12 @@ struct VFile* VFileFromFD(int fd) {
 		return 0;
 	}
 
+	struct stat stat;
+	if (fstat(fd, &stat) < 0 || S_ISDIR(stat.st_mode)) {
+		close(fd);
+		return 0;
+	}
+
 	struct VFileFD* vfd = malloc(sizeof(struct VFileFD));
 	if (!vfd) {
 		return 0;