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Date: Wed, 18 Jun 2014 18:32:29 +0200
From: David Sterba <dsterba@suse.cz>
To: Jeff Mahoney <jeffm@suse.com>
Cc: linux-btrfs <linux-btrfs@vger.kernel.org>, David Sterba <dsterba@suse.cz>
Subject: Re: [PATCH] btrfs-progs: canonicalize pathnames for device commands
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On Wed, Jun 04, 2014 at 04:43:11PM -0400, Jeff Mahoney wrote:
> --- a/utils.c
> +++ b/utils.c
> @@ -987,6 +987,63 @@ static int blk_file_in_dev_list(struct b
>  }
>  
>  /*
> + * Resolve a pathname to a device mapper node to /dev/mapper/<name>
> + * Returns NULL on invalid input or malloc failure; Other failures
> + * will be handled by the caller using the input pathame.
> + */
> +char *canonicalize_dm_name(const char *ptname)
> +{
> +	FILE	*f;
> +	size_t	sz;
> +	char	path[256], name[256], *res = NULL;

FYI, I've changed this to PATH_MAX