stat-util: Add is_fs_type_at()

2 files changed, 12 insertions, 14 deletions

diff --git a/src/basic/stat-util.c b/src/basic/stat-util.c
index 4db11f9299..3c999098e1 100644
--- a/src/basic/stat-util.c
+++ b/src/basic/stat-util.c
@@ -207,20 +207,13 @@ bool is_fs_type(const struct statfs *s, statfs_f_type_t magic_value) {
         return F_TYPE_EQUAL(s->f_type, magic_value);
 }
 
-int fd_is_fs_type(int fd, statfs_f_type_t magic_value) {
-        struct statfs s;
-
-        if (fstatfs(fd, &s) < 0)
-                return -errno;
-
-        return is_fs_type(&s, magic_value);
-}
-
-int path_is_fs_type(const char *path, statfs_f_type_t magic_value) {
+int is_fs_type_at(int dir_fd, const char *path, statfs_f_type_t magic_value) {
         struct statfs s;
+        int r;
 
-        if (statfs(path, &s) < 0)
-                return -errno;
+        r = xstatfsat(dir_fd, path, &s);
+        if (r < 0)
+                return r;
 
         return is_fs_type(&s, magic_value);
 }
diff --git a/src/basic/stat-util.h b/src/basic/stat-util.h
index 3ae8b3eeb1..ae0aaf8f51 100644
--- a/src/basic/stat-util.h
+++ b/src/basic/stat-util.h
@@ -48,8 +48,13 @@ static inline int inode_same(const char *filea, const char *fileb, int flags) {
 typedef typeof(((struct statfs*)NULL)->f_type) statfs_f_type_t;
 
 bool is_fs_type(const struct statfs *s, statfs_f_type_t magic_value) _pure_;
-int fd_is_fs_type(int fd, statfs_f_type_t magic_value);
-int path_is_fs_type(const char *path, statfs_f_type_t magic_value);
+int is_fs_type_at(int dir_fd, const char *path, statfs_f_type_t magic_value);
+static inline int fd_is_fs_type(int fd, statfs_f_type_t magic_value) {
+        return is_fs_type_at(fd, NULL, magic_value);
+}
+static inline int path_is_fs_type(const char *path, statfs_f_type_t magic_value) {
+        return is_fs_type_at(AT_FDCWD, path, magic_value);
+}
 
 bool is_temporary_fs(const struct statfs *s) _pure_;
 bool is_network_fs(const struct statfs *s) _pure_;