return fdbad (cb, fd) ? 0 : fdmap (cb, fd) == 0;
}
+int
+cb_is_stdout (host_callback *cb, int fd)
+{
+ return fdbad (cb, fd) ? 0 : fdmap (cb, fd) == 1;
+}
+
+int
+cb_is_stderr (host_callback *cb, int fd)
+{
+ return fdbad (cb, fd) ? 0 : fdmap (cb, fd) == 2;
+}