+
+int fd_get_path(int fd, char **ret);
+#endif // 0
+
+/* Hint: ENETUNREACH happens if we try to connect to "non-existing" special IP addresses, such as ::5 */
+#define ERRNO_IS_DISCONNECT(r) \
+ IN_SET(r, ENOTCONN, ECONNRESET, ECONNREFUSED, ECONNABORTED, EPIPE, ENETUNREACH)