linux-ext4 - Re: [PATCH] fix check_mntent_file() to pass mode for open(O

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Date:	Thu, 08 Nov 2007 21:30:01 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	"Theodore Ts'o" <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] fix check_mntent_file() to pass mode for open(O_CREAT)

Andreas Dilger wrote:
> On my FC8 install, ismounted.c fails to build because open(O_CREAT) is
> used without passing a mode.  The following trivial patch fixes it.

You can add:

Acked-by: Eric Sandeen <sandeen@...hat.com>

'cause it's an awful lot like the patch I sent for the same issue back
on 8/16  ;-)  Guess I should have followed that up with a ping.  (though
your 0600 mode is probably better than my 0644 was)

Andreas, did you also run into trouble with struct_io_manager's ->open
calls triggering this test?

I sent a patch for that,

[PATCH] rename ->open and ->close ops in struct_io_manager

too... maybe the glibc #define tricks got smarter and don't trigger that
now?

-Eric

> Signed-off-by: Andreas Dilger <adilger@...ger.ca>
> 
> Index: e2fsprogs-1.40.2/lib/ext2fs/ismounted.c
> ===================================================================
> --- e2fsprogs-1.40.2.orig/lib/ext2fs/ismounted.c
> +++ e2fsprogs-1.40.2/lib/ext2fs/ismounted.c
> @@ -147,7 +147,7 @@ static errcode_t check_mntent_file(const
>  is_root:
>  #define TEST_FILE "/.ismount-test-file"		
>  		*mount_flags |= EXT2_MF_ISROOT;
> -		fd = open(TEST_FILE, O_RDWR|O_CREAT);
> +		fd = open(TEST_FILE, O_RDWR|O_CREAT, 0600);
>  		if (fd < 0) {
>  			if (errno == EROFS)
>  				*mount_flags |= EXT2_MF_READONLY;
> 
> Cheers, Andreas
> --
> Andreas Dilger
> Sr. Software Engineer, Lustre Group
> Sun Microsystems of Canada, Inc.
> 
> -
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