On Thu, Feb 02, 2023 at 12:27:02PM +0100, Mateusz Grzonka wrote:
> Signed-off-by: Mateusz Grzonka <mateusz.grzonka@xxxxxxxxx>
Acked-by: Coly Li <colyli@xxxxxxx>
> ---
> mdadm.h | 2 ++
> util.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 47 insertions(+)
>
> diff --git a/mdadm.h b/mdadm.h
> index 13f8b4cb..1674ce13 100644
> --- a/mdadm.h
> +++ b/mdadm.h
> @@ -1777,6 +1777,8 @@ extern void set_dlm_hooks(void);
> #define MSEC_TO_NSEC(msec) ((msec) * 1000000)
> #define USEC_TO_NSEC(usec) ((usec) * 1000)
> extern void sleep_for(unsigned int sec, long nsec, bool wake_after_interrupt);
> +extern bool is_directory(const char *path);
> +extern bool is_file(const char *path);
>
> #define _ROUND_UP(val, base) (((val) + (base) - 1) & ~(base - 1))
> #define ROUND_UP(val, base) _ROUND_UP(val, (typeof(val))(base))
> diff --git a/util.c b/util.c
> index 9cd89fa4..5afb7c08 100644
> --- a/util.c
> +++ b/util.c
> @@ -2396,3 +2396,48 @@ void sleep_for(unsigned int sec, long nsec, bool wake_after_interrupt)
> }
> } while (!wake_after_interrupt && errno == EINTR);
> }
> +
> +/* is_directory() - Checks if directory provided by path is indeed a regular directory.
> + * @path: directory path to be checked
> + *
> + * Doesn't accept symlinks.
> + *
> + * Return: true if is a directory, false if not
> + */
> +bool is_directory(const char *path)
> +{
> + struct stat st;
> +
> + if (lstat(path, &st) != 0) {
> + pr_err("%s: %s\n", strerror(errno), path);
> + return false;
> + }
> +
> + if (!S_ISDIR(st.st_mode))
> + return false;
> +
> + return true;
> +}
> +
> +/*
> + * is_file() - Checks if file provided by path is indeed a regular file.
> + * @path: file path to be checked
> + *
> + * Doesn't accept symlinks.
> + *
> + * Return: true if is a file, false if not
> + */
> +bool is_file(const char *path)
> +{
> + struct stat st;
> +
> + if (lstat(path, &st) != 0) {
> + pr_err("%s: %s\n", strerror(errno), path);
> + return false;
> + }
> +
> + if (!S_ISREG(st.st_mode))
> + return false;
> +
> + return true;
> +}
> --
> 2.26.2
>
--
Coly Li
