filesystems: add internal APIs to convert fs magic to name

We previously had tooling for the opposite direction, let's complete the
work.

1 files changed, 11 insertions, 1 deletions

diff --git a/src/basic/filesystems.c b/src/basic/filesystems.c
index d2c70f54cb..628a7dfa91 100644
--- a/src/basic/filesystems.c
+++ b/src/basic/filesystems.c
@@ -1,6 +1,17 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "filesystems-gperf.h"
+#include "stat-util.h"
+
+const char *fs_type_to_string(statfs_f_type_t magic) {
+
+        switch (magic) {
+#include "filesystem-switch-case.h"
+        }
+
+        return NULL;
+}
+
 
 int fs_type_from_string(const char *name, const statfs_f_type_t **ret) {
         const struct FilesystemMagic *fs_magic;
@@ -13,7 +24,6 @@ int fs_type_from_string(const char *name, const statfs_f_type_t **ret) {
                 return -EINVAL;
 
         *ret = fs_magic->magic;
-
         return 0;
 }