1/* printf wrappers that fail immediately for non-file-related errors
2   Copyright (C) 2007, 2009-2010 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 <http://www.gnu.org/licenses/>.  */
16
17#include <config.h>
18
19#include "xprintf.h"
20
21#include <errno.h>
22
23#include "error.h"
24#include "exitfail.h"
25#include "gettext.h"
26
27/* written by Jim Meyering */
28
29/* Just like printf, but call error if it fails without setting the
30   stream's error indicator.  */
31int
32xprintf (char const *restrict format, ...)
33{
34  va_list args;
35  int retval;
36  va_start (args, format);
37  retval = xvprintf (format, args);
38  va_end (args);
39
40  return retval;
41}
42
43/* Just like vprintf, but call error if it fails without setting the
44   stream's error indicator.  */
45int
46xvprintf (char const *restrict format, va_list args)
47{
48  int retval = vprintf (format, args);
49  if (retval < 0 && ! ferror (stdout))
50    error (exit_failure, errno, gettext ("cannot perform formatted output"));
51
52  return retval;
53}
54
55/* Just like fprintf, but call error if it fails without setting the
56   stream's error indicator.  */
57int
58xfprintf (FILE *restrict stream, char const *restrict format, ...)
59{
60  va_list args;
61  int retval;
62  va_start (args, format);
63  retval = xvfprintf (stream, format, args);
64  va_end (args);
65
66  return retval;
67}
68
69/* Just like vfprintf, but call error if it fails without setting the
70   stream's error indicator.  */
71int
72xvfprintf (FILE *restrict stream, char const *restrict format, va_list args)
73{
74  int retval = vfprintf (stream, format, args);
75  if (retval < 0 && ! ferror (stream))
76    error (exit_failure, errno, gettext ("cannot perform formatted output"));
77
78  return retval;
79}
80