<reponame>DiamondKeySecurity/diamondhsm-win-cng
/*
* logging.c
* ---------
* Default (stdio-based) logging code for libhal.
*
* Copyright (c) 2017, NORDUnet A/S All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* - Redistributions of source code must retain the above copyright notice,
*   this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of the NORDUnet nor the names of its contributors may
*   be used to endorse or promote products derived from this software
*   without specific prior written permission.
*
* 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
* HOLDER 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.
*/

#include "stdafx.h"

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

/*
* Default stdio-based logging code.  Specific environments may supply
* something more appropriate (eg, on the Alpha, we want to log to the
* management port).
*
* See lock.c for comments on GNU weak functions.
*/

#ifndef ENABLE_WEAK_FUNCTIONS
#define ENABLE_WEAK_FUNCTIONS 0
#endif

#if ENABLE_WEAK_FUNCTIONS
#define WEAK_FUNCTION __attribute__((weak))
#else
#define WEAK_FUNCTION
#endif

static hal_log_level_t current_level;

WEAK_FUNCTION void hal_log_set_level(const hal_log_level_t level)
{
	current_level = level;
}

WEAK_FUNCTION void hal_log(const hal_log_level_t level, const char *format, ...)
{
	if (level < current_level)
		return;

	va_list ap;
	va_start(ap, format);
	vfprintf(stderr, format, ap);
	va_end(ap);
	fprintf(stderr, "\n");
}

/*
* Local variables:
* indent-tabs-mode: nil
* End:
*/
