int cunescape_one(const char *p, size_t length, char32_t *ret, bool *eight_bit);
char *xescape(const char *s, const char *bad);
+#if 0 /// UNNEEDED by elogind
+char *octescape(const char *s, size_t len);
char *shell_escape(const char *s, const char *bad);
char *shell_maybe_quote(const char *s);
+#endif // 0