Signed-off-by: Mateusz Grzonka <mateusz.grzonka@xxxxxxxxx>
---
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
