/* Definitions for error fallback functions.
 Copyright (C) 2021 Google, Inc.
 This file is part of elfutils.

 This file is free software; you can redistribute it and/or modify
 it under the terms of either

 * the GNU Lesser General Public License as published by the Free
 Software Foundation; either version 3 of the License, or (at
 your option) any later version

 or

 * the GNU General Public License as published by the Free
 Software Foundation; either version 2 of the License, or (at
 your option) any later version

 or both in parallel, as here.

 elfutils 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 copies of the GNU General Public License and
 the GNU Lesser General Public License along with this program. If
 not, see <http://www.gnu.org/licenses/>. */

#include <config.h>

#if !defined(HAVE_ERROR_H) && defined(HAVE_ERR_H)
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <err.h>

unsigned int error_message_count = 0;

void error(int status, int errnum, const char *format, ...) {
 va_list argp;
 int saved_errno = errno;

 fflush (stdout);

 va_start(argp, format);
 if (status)
 {
 if (errnum)
 {
 errno = errnum;
 verr (status, format, argp);
 }
 else
 verrx (status, format, argp);
 }
 else
 {
 if (errnum)
 {
 errno = errnum;
 vwarn (format, argp);
 }
 else
 vwarnx (format, argp);
 }
 va_end(argp);

 fflush (stderr);

 ++error_message_count;

 errno = saved_errno;
}
#endif