1 /* prog-fprintf.c - common formatting output functions and definitions
2 Copyright (C) 2008-2023 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 #include <config.h>
18 #include <stdarg.h>
19 #include <sys/types.h>
20
21 #include "system.h"
22
23 #include "prog-fprintf.h"
24
25 /* Display program name followed by variable list.
26 Used for e.g. verbose output */
27 void
prog_fprintf(FILE * fp,char const * fmt,...)28 prog_fprintf (FILE *fp, char const *fmt, ...)
29 {
30 va_list ap;
31 fputs (program_name, fp);
32 fputs (": ", fp);
33 va_start (ap, fmt);
34 vfprintf (fp, fmt, ap);
35 va_end (ap);
36 fputc ('\n', fp);
37 }
38