From: Sascha Hauer <s.hauer@pengutronix.de>
To: Teresa Remmet <t.remmet@phytec.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH v2] lib: libfile: Fix copying files to a non existing destination
Date: Tue, 17 Jan 2017 07:57:29 +0100 [thread overview]
Message-ID: <20170117065729.lnrogq2eifoi5amd@pengutronix.de> (raw)
In-Reply-To: <1484557659-5056-1-git-send-email-t.remmet@phytec.de>
On Mon, Jan 16, 2017 at 10:07:39AM +0100, Teresa Remmet wrote:
> If the destination file does not exist the stat call to check the file
> type fails. Extend the check of the stat return value.
> To allow to copy files to a new destination.
>
> Fixes commit 0ec6bd3e1be8 ("libfile: copy_file: Only open
> regular files with O_TRUNC")
>
> Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
> ---
> lib/libfile.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
Applied (to master), thanks
Sascha
>
> diff --git a/lib/libfile.c b/lib/libfile.c
> index 049ec32..6b70306 100644
> --- a/lib/libfile.c
> +++ b/lib/libfile.c
> @@ -276,13 +276,14 @@ int copy_file(const char *src, const char *dst, int verbose)
> goto out;
> }
>
> + mode = O_WRONLY | O_CREAT;
> +
> ret = stat(dst, &dststat);
> - if (ret)
> + if (ret && ret != -ENOENT)
> goto out;
>
> - mode = O_WRONLY | O_CREAT;
> -
> - if (S_ISREG(dststat.st_mode))
> + /* Set O_TRUNC only if file exist and is a regular file */
> + if (!ret && S_ISREG(dststat.st_mode))
> mode |= O_TRUNC;
>
> dstfd = open(dst, mode);
> --
> 1.9.1
>
>
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prev parent reply other threads:[~2017-01-17 6:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-16 9:07 Teresa Remmet
2017-01-17 6:57 ` Sascha Hauer [this message]
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