From 5509372f03e01235d4663d80bb769c52711688a9 Mon Sep 17 00:00:00 2001
From: Frank Gevaerts <frank@gevaerts.be>
Date: Wed, 23 Dec 2009 22:13:37 +0000
Subject: Make read() and write() return -1/EISDIR on directories

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24106 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/common/file.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/firmware/common/file.c b/firmware/common/file.c
index 75adc87..a80aed5 100644
--- a/firmware/common/file.c
+++ b/firmware/common/file.c
@@ -500,6 +500,11 @@ static int readwrite(int fd, void* buf, long count, bool write)
         return -1;
     }
 
+    if(file->attr & FAT_ATTR_DIRECTORY) {
+        errno = EISDIR;
+        return -1;
+    }
+
     LDEBUGF( "readwrite(%d,%lx,%ld,%s)\n",
              fd,(long)buf,count,write?"write":"read");
 
-- 
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