Add a check for O_DIRECTORY in the O_CREAT path, and return -EINVAL.
Current behavior is inconsistent with documentation:
open(..., O_DIRECTORY|O_CREAT) succeeds if file didn't exist, and
returned descriptor does not refer to a directory.
No other error value quite fits this case:
ENOTDIR - the file doesn't exist, so this is slightly misleading
ENOENT - yes, but we asked for an O_CREAT so why wasn't it created
But EINVAL - invalid combination of flags, is quite good IMO.
Signed-off-by: Miklos Szeredi <[email protected]>
Index: linux/fs/namei.c
===================================================================
--- linux.orig/fs/namei.c 2005-09-23 16:35:32.000000000 +0200
+++ linux/fs/namei.c 2005-09-23 16:36:19.000000000 +0200
@@ -1441,6 +1441,9 @@ int open_namei(const char * pathname, in
return error;
goto ok;
}
+ /* O_CREAT | O_DIRECTORY should fail */
+ if (flag & O_DIRECTORY)
+ return -EINVAL;
/*
* Create - we need to know the parent.
-
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