/*
* Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @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 <limits.h>
#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;
}
static int
err_sparse_mapit(int old, const struct error_sparse_map *map_table, int mapcnt)
{
boolean_t found = FALSE;
int ret = 0, i;
for (i = 0; i < mapcnt; i++) {
struct error_sparse_map entry = map_table[i];
if (entry.start <= old && old <= entry.end) {
ret += old - entry.start;
found = TRUE;
break;
}
ret += entry.end - entry.start + 1;
}
return (found)? ret : INT_MAX;
}
char *
mach_error_type(mach_error_t err)
{
const struct error_system *sys_p;
int sub, system;
do_compat( &err );
system = err_get_system(err);
sys_p = &_mach_errors[system];
sub = err_get_sub(err);
if (system <= err_max_system && sys_p->map_table) {
sub = err_sparse_mapit(sub, sys_p->map_table, sys_p->map_count);
}
if (system > err_max_system || sub >= sys_p->max_sub) {
return (char *)"(?/?)";
}
return (char *) (sys_p->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)
{
const struct error_system *sys_p;
const struct error_subsystem *sub_p;
int sub, system, code;
do_compat( &err );
system = err_get_system(err);
sys_p = &_mach_errors[system];
sub = err_get_sub(err);
code = err_get_code(err);
*diag = TRUE;
if (system > err_max_system) {
return (char *)"(?/?) unknown error system";
} else if (sys_p->map_table) {
sub = err_sparse_mapit(sub, sys_p->map_table, sys_p->map_count);
}
if (sub >= sys_p->max_sub) {
return (char *)sys_p->bad_sub;
}
sub_p = &sys_p->subsystem[sub];
if (sub_p->map_table) {
code = err_sparse_mapit(code, sub_p->map_table, sub_p->map_count);
}
if (code >= sub_p->max_code) {
return (char *)NO_SUCH_ERROR;
}
*diag = mach_error_full_diag;
return (char *)sub_p->codes[code];
}
char *
mach_error_string(mach_error_t err)
{
boolean_t diag;
return mach_error_string_int( err, &diag );
}
/* vim: set ts=4: */