[libvirt] [PATCH] storage: Refetch file status after open
Jiri Denemark
jdenemar at redhat.com
Fri Nov 25 12:43:04 UTC 2011
On Fri, Nov 25, 2011 at 13:28:50 +0100, Michal Privoznik wrote:
> This partly reverts my previous patch f88de3eb. We need to
> get file status after open, as given path could have been symlink,
> so fstat() will operate on different file than lstat().
> ---
> src/storage/storage_backend.c | 8 ++++++++
> 1 files changed, 8 insertions(+), 0 deletions(-)
>
> diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c
> index d30829d..d7394e0 100644
> --- a/src/storage/storage_backend.c
> +++ b/src/storage/storage_backend.c
> @@ -1041,6 +1041,14 @@ virStorageBackendVolOpenCheckMode(const char *path, unsigned int flags)
> return -1;
> }
>
> + if (fstat(fd, &sb) < 0) {
> + virReportSystemError(errno,
> + _("cannot stat file '%s'"),
> + path);
> + VIR_FORCE_CLOSE(fd);
> + return -1;
> + }
> +
> if (S_ISREG(sb.st_mode))
> mode = VIR_STORAGE_VOL_OPEN_REG;
> else if (S_ISCHR(sb.st_mode))
ACK
Jirka
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