util-lib: split stat()/statfs()/stavfs() related calls into stat-util.[ch]

src/basic/util.h

@@ -141,39 +141,14 @@ ssize_t string_table_lookup(const char * const *table, size_t len, const char *k
 
 bool fstype_is_network(const char *fstype);
 
-int dir_is_empty(const char *path);
-
-static inline int dir_is_populated(const char *path) {
-        int r;
-        r = dir_is_empty(path);
-        if (r < 0)
-                return r;
-        return !r;
-}
-
-typedef long statfs_f_type_t;
-
-bool is_fs_type(const struct statfs *s, statfs_f_type_t magic_value) _pure_;
-int fd_check_fstype(int fd, statfs_f_type_t magic_value);
-int path_check_fstype(const char *path, statfs_f_type_t magic_value);
-
-bool is_temporary_fs(const struct statfs *s) _pure_;
-int fd_is_temporary_fs(int fd);
-
 #define xsprintf(buf, fmt, ...) \
         assert_message_se((size_t) snprintf(buf, ELEMENTSOF(buf), fmt, __VA_ARGS__) < ELEMENTSOF(buf), \
                           "xsprintf: " #buf "[] must be big enough")
 
-int files_same(const char *filea, const char *fileb);
-
 int running_in_chroot(void);
 
 noreturn void freeze(void);
 
-bool null_or_empty(struct stat *st) _pure_;
-int null_or_empty_path(const char *fn);
-int null_or_empty_fd(int fd);
-
 void execute_directories(const char* const* directories, usec_t timeout, char *argv[]);
 
 bool plymouth_running(void);
@@ -452,10 +427,6 @@ union file_handle_union {
 
 int update_reboot_param_file(const char *param);
 
-int is_symlink(const char *path);
-int is_dir(const char *path, bool follow);
-int is_device_node(const char *path);
-
 #define INOTIFY_EVENT_MAX (sizeof(struct inotify_event) + NAME_MAX + 1)
 
 #define FOREACH_INOTIFY_EVENT(e, buffer, sz) \