1 files changed, 37 insertions, 0 deletions
diff --git a/src/prog-fprintf.c b/src/prog-fprintf.c
new file mode 100644
index 0000000..1f0202a
--- /dev/null
+++ b/src/prog-fprintf.c
@@ -0,0 +1,37 @@
+/* prog-fprintf.c - common formating output functions and definitions
+   Copyright (C) 2008-2020 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 <config.h>
+#include <stdarg.h>
+#include <sys/types.h>
+
+#include "system.h"
+
+#include "prog-fprintf.h"
+
+/* Display program name followed by variable list.
+   Used for e.g. verbose output */
+void
+prog_fprintf (FILE *fp, char const *fmt, ...)
+{
+  va_list ap;
+  fputs (program_name, fp);
+  fputs (": ", fp);
+  va_start (ap, fmt);
+  vfprintf (fp, fmt, ap);
+  va_end (ap);
+  fputc ('\n', fp);
+}