/* SPDX-License-Identifier: BSD-2-Clause */

/**
 * @file
 *
 * @ingroup rtl
 *
 * @brief RTEMS Run-Time Linker Error
 */

/*
 *  COPYRIGHT (c) 2012-2018 Chris Johns <chrisj@rtems.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>

#include <rtems/rtl/rtl.h>
#include "rtl-error.h"

void
rtems_rtl_set_error (int error, const char* format, ...)
{
  rtems_rtl_data* rtl = rtems_rtl_lock ();
  va_list         ap;
  va_start (ap, format);
  rtl->last_errno = error;
  vsnprintf (rtl->last_error, sizeof (rtl->last_error), format, ap);
  rtems_rtl_unlock ();
  va_end (ap);
}

int
rtems_rtl_get_error (char* message, size_t max_message)
{
  rtems_rtl_data* rtl = rtems_rtl_lock ();
  if (rtl != NULL)
  {
    int last_errno = rtl->last_errno;
    rtl->last_errno = 0;
    strlcpy (message, rtl->last_error, max_message);
    rtems_rtl_unlock ();
    return last_errno;
  }

  strncpy(message, "RTL init error", max_message);

  return EIO;
}