+
+int open_tmpfile_unlinkable(const char *directory, int flags);
+#if 0 /// UNNEEDED by elogind
+int open_tmpfile_linkable(const char *target, int flags, char **ret_path);
+#endif // 0
+int open_serialization_fd(const char *ident);
+
+#if 0 /// UNNEEDED by elogind
+int link_tmpfile(int fd, const char *path, const char *target);
+#endif // 0
+
+int read_nul_string(FILE *f, char **ret);
+
+int mkdtemp_malloc(const char *template, char **ret);