80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
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/* printf wrappers that fail immediately for non-file-related errors
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Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include "xprintf.h"
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#include <errno.h>
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#include "error.h"
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#include "exitfail.h"
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#include "gettext.h"
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/* written by Jim Meyering */
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/* Just like printf, but call error if it fails without setting the
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stream's error indicator. */
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int
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xprintf (char const *restrict format, ...)
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{
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va_list args;
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int retval;
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va_start (args, format);
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retval = xvprintf (format, args);
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va_end (args);
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return retval;
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}
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/* Just like vprintf, but call error if it fails without setting the
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stream's error indicator. */
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int
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xvprintf (char const *restrict format, va_list args)
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{
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int retval = vprintf (format, args);
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if (retval < 0 && ! ferror (stdout))
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error (exit_failure, errno, gettext ("cannot perform formatted output"));
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return retval;
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}
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/* Just like fprintf, but call error if it fails without setting the
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stream's error indicator. */
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int
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xfprintf (FILE *restrict stream, char const *restrict format, ...)
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{
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va_list args;
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int retval;
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va_start (args, format);
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retval = xvfprintf (stream, format, args);
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va_end (args);
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return retval;
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}
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/* Just like vfprintf, but call error if it fails without setting the
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stream's error indicator. */
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int
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xvfprintf (FILE *restrict stream, char const *restrict format, va_list args)
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{
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int retval = vfprintf (stream, format, args);
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if (retval < 0 && ! ferror (stream))
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error (exit_failure, errno, gettext ("cannot perform formatted output"));
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return retval;
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}
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