1 files changed, 29 insertions, 0 deletions
diff --git a/lib/fprintftime.h b/lib/fprintftime.h
new file mode 100644
index 0000000..6e41482
--- /dev/null
+++ b/lib/fprintftime.h
@@ -0,0 +1,29 @@
+/* Generate time strings directly to the output.  */
+
+/* Copyright (C) 2005, 2009-2020 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <time.h>
+
+/* A cross between fprintf and nstrftime, that prints directly
+   to the output stream, without the need for the potentially
+   large buffer that nstrftime would require.
+
+   Output to stream FP the result of formatting (according to the
+   nstrftime format string, FMT) the time data, *TM, and the ZONE
+   and NANOSECONDS values.  */
+size_t fprintftime (FILE *fp, char const *fmt, struct tm const *tm,
+                    timezone_t zone, int nanoseconds);