int run_with_timeout PARAMS ((double, void (*) (void *), void *));
void xsleep PARAMS ((double));
+/* How many bytes it will take to store LEN bytes in base64. */
+#define BASE64_LENGTH(len) (4 * (((len) + 2) / 3))
+
+void base64_encode PARAMS ((const char *, char *, int));
+int base64_decode PARAMS ((const char *, char *));
+
#endif /* UTILS_H */