xnu-6153.101.6.tar.gz

[apple/xnu.git] / libsyscall / mach / mach_error.c

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 * Copyright (c) 1999-2010 Apple Inc. All rights reserved.
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 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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/*
 * Mach Operating System
 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */

/*
 *      File:	mach_error.c
 *	Author:	Douglas Orr, Carnegie Mellon University
 *	Date:	Mar 1988
 *
 *      interprets structured mach error codes and prints
 *      or returns a descriptive string.
 */

#include <mach/mach_error.h>
#include <mach/boolean.h>
#include "errorlib.h"
#include "string.h"

int fprintf_stderr(const char *format, ...);

void
mach_error(const char *str, mach_error_t err)
{
	char *err_str;
	char buf[1024];
	boolean_t diag;

	err_str = mach_error_string_int(err, &diag);

	if (diag) {
		_mach_snprintf(buf, sizeof(buf), "%s %s (%x)", mach_error_type(err), err_str, err);
		err_str = buf;
	}

	fprintf_stderr("%s %s\n", str, err_str);
}