[apple/libc.git] / mach / mach_error_string.c

/*
 * @OSF_COPYRIGHT@
 */
/* 
 * 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.
 */

#include <mach/boolean.h>
#include <mach/error.h>
#include <mach/mach_error.h>

#include "errorlib.h"
#include "externs.h"

static void do_compat(mach_error_t *);

static void
do_compat(mach_error_t *org_err)
{
	mach_error_t		err = *org_err;

	/* 
	 * map old error numbers to 
	 * to new error sys & subsystem 
	 */

	if ((-200 < err) && (err <= -100))
		err = -(err + 100) | IPC_SEND_MOD;
	else if ((-300 < err) && (err <= -200))
		err = -(err + 200) | IPC_RCV_MOD;
	else if ((-400 < err) && (err <= -300))
		err = -(err + 300) | MACH_IPC_MIG_MOD;
	else if ((1000 <= err) && (err < 1100))
		err = (err - 1000) | SERV_NETNAME_MOD;
	else if ((1600 <= err) && (err < 1700))
		err = (err - 1600) | SERV_ENV_MOD;
	else if ((27600 <= err) && (err < 27700))
		err = (err - 27600) | SERV_EXECD_MOD;

	*org_err = err;
}

char *
mach_error_type(mach_error_t err)
{
	int sub, system;

	do_compat( &err );

	sub = err_get_sub(err);
	system = err_get_system(err);

	if (system > err_max_system || sub >= _mach_errors[system].max_sub)
	    return((char *)"(?/?)");
	return(_mach_errors[system].subsystem[sub].subsys_name);
}

boolean_t mach_error_full_diag = FALSE;

__private_extern__ char *
mach_error_string_int(mach_error_t err, boolean_t *diag)
{
	int sub, system, code;

	do_compat( &err );

	sub = err_get_sub(err);
	system = err_get_system(err);
	code = err_get_code(err);

	*diag = TRUE;

	if (system > err_max_system)
	    return((char *)"(?/?) unknown error system");
	if (sub >= _mach_errors[system].max_sub)
	    return(_mach_errors[system].bad_sub);
	if (code >= _mach_errors[system].subsystem[sub].max_code)
	    return ((char *)NO_SUCH_ERROR);

	*diag = mach_error_full_diag;
	return( _mach_errors[system].subsystem[sub].codes[code] );
}

char *
mach_error_string(mach_error_t err)
{
	boolean_t diag;

	return mach_error_string_int( err, &diag );

}
Commit	Line	Data
e9ce8d39 A	1	/*
	2	* @OSF_COPYRIGHT@
	3	*/
	4	/*
	5	* Mach Operating System
	6	* Copyright (c) 1991,1990,1989 Carnegie Mellon University
	7	* All Rights Reserved.
	8	*
	9	* Permission to use, copy, modify and distribute this software and its
	10	* documentation is hereby granted, provided that both the copyright
	11	* notice and this permission notice appear in all copies of the
	12	* software, derivative works or modified versions, and any portions
	13	* thereof, and that both notices appear in supporting documentation.
	14	*
	15	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	16	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	17	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	18	*
	19	* Carnegie Mellon requests users of this software to return to
	20	*
	21	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	22	* School of Computer Science
	23	* Carnegie Mellon University
	24	* Pittsburgh PA 15213-3890
	25	*
	26	* any improvements or extensions that they make and grant Carnegie Mellon
	27	* the rights to redistribute these changes.
	28	*/
	29
	30	#include <mach/boolean.h>
	31	#include <mach/error.h>
	32	#include <mach/mach_error.h>
5b2abdfb A	33
5b2abdfb A	34	#include "errorlib.h"
e9ce8d39 A	35	#include "externs.h"
	36
	37	static void do_compat(mach_error_t *);
	38
	39	static void
	40	do_compat(mach_error_t *org_err)
	41	{
	42	mach_error_t err = *org_err;
	43
	44	/*
	45	* map old error numbers to
	46	* to new error sys & subsystem
	47	*/
	48
	49	if ((-200 < err) && (err <= -100))
	50	err = -(err + 100) \| IPC_SEND_MOD;
	51	else if ((-300 < err) && (err <= -200))
	52	err = -(err + 200) \| IPC_RCV_MOD;
	53	else if ((-400 < err) && (err <= -300))
	54	err = -(err + 300) \| MACH_IPC_MIG_MOD;
	55	else if ((1000 <= err) && (err < 1100))
	56	err = (err - 1000) \| SERV_NETNAME_MOD;
	57	else if ((1600 <= err) && (err < 1700))
	58	err = (err - 1600) \| SERV_ENV_MOD;
	59	else if ((27600 <= err) && (err < 27700))
	60	err = (err - 27600) \| SERV_EXECD_MOD;
	61
	62	*org_err = err;
	63	}
	64
	65	char *
	66	mach_error_type(mach_error_t err)
	67	{
	68	int sub, system;
	69
	70	do_compat( &err );
	71
	72	sub = err_get_sub(err);
	73	system = err_get_system(err);
	74
5b2abdfb	75	if (system > err_max_system \|\| sub >= _mach_errors[system].max_sub)
e9ce8d39	76	return((char *)"(?/?)");
5b2abdfb	77	return(_mach_errors[system].subsystem[sub].subsys_name);
e9ce8d39 A	78	}
	79
	80	boolean_t mach_error_full_diag = FALSE;
	81
5b2abdfb	82	__private_extern__ char *
e9ce8d39 A	83	mach_error_string_int(mach_error_t err, boolean_t *diag)
	84	{
	85	int sub, system, code;
	86
	87	do_compat( &err );
	88
	89	sub = err_get_sub(err);
	90	system = err_get_system(err);
	91	code = err_get_code(err);
	92
	93	*diag = TRUE;
	94
	95	if (system > err_max_system)
	96	return((char *)"(?/?) unknown error system");
5b2abdfb A	97	if (sub >= _mach_errors[system].max_sub)
	98	return(_mach_errors[system].bad_sub);
	99	if (code >= _mach_errors[system].subsystem[sub].max_code)
e9ce8d39 A	100	return ((char *)NO_SUCH_ERROR);
	101
	102	*diag = mach_error_full_diag;
5b2abdfb	103	return( _mach_errors[system].subsystem[sub].codes[code] );
e9ce8d39 A	104	}
	105
	106	char *
	107	mach_error_string(mach_error_t err)
	108	{
	109	boolean_t diag;
	110
	111	return mach_error_string_int( err, &diag );
	112
	113	}