mach/errstring.c

   1 /*
   2  * Mach Operating System
   3  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
   4  * All Rights Reserved.
   5  *
   6  * Permission to use, copy, modify and distribute this software and its
   7  * documentation is hereby granted, provided that both the copyright
   8  * notice and this permission notice appear in all copies of the
   9  * software, derivative works or modified versions, and any portions
  10  * thereof, and that both notices appear in supporting documentation.
  11  *
  12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  15  *
  16  * Carnegie Mellon requests users of this software to return to
  17  *
  18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  19  *  School of Computer Science
  20  *  Carnegie Mellon University
  21  *  Pittsburgh PA 15213-3890
  22  *
  23  * any improvements or extensions that they make and grant Carnegie Mellon
  24  * the rights to redistribute these changes.
  25  */
  26 /*
  27  * (pre-GNU) HISTORY
  28  *
  29  * Revision 2.3  92/04/01  19:38:18  rpd
  30  *      Updated do_compat for kernel device errors,
  31  *      bootstrap file-system errors.
  32  *      [92/03/09            rpd]
  33  *
  34  * Revision 2.2  92/02/20  15:58:08  elf
  35  *      Created from mach_error.c.
  36  *      [92/02/11            rpd]
  37  *
  38  */
  39
  40 #define EXPORT_BOOLEAN
  41 #include <mach/boolean.h>
  42 #include <mach/error.h>
  43 #include <mach_error.h>
  44 #include <errorlib.h>
  45
  46 extern void __mach_error_map_compat (mach_error_t *);
  47
  48 const char *
  49 mach_error_type(mach_error_t err)
  50 {
  51         int sub, system;
  52
  53         __mach_error_map_compat( &err );
  54
  55         sub = err_get_sub(err);
  56         system = err_get_system(err);
  57
  58         if (system > err_max_system
  59         ||  sub >= errors[system].max_sub ) return( "(?/?)" );
  60         return( errors[system].subsystem[sub].subsys_name );
  61 }
  62
  63 boolean_t mach_error_full_diag = FALSE;
  64
  65 const char *
  66 mach_error_string_int(mach_error_t      err,
  67                       boolean_t         * diag)
  68 {
  69         int sub, system, code;
  70
  71         __mach_error_map_compat( &err );
  72
  73         sub = err_get_sub(err);
  74         system = err_get_system(err);
  75         code = err_get_code(err);
  76
  77         *diag = TRUE;
  78
  79         if (system > err_max_system) return( "(?/?) unknown error system" );
  80         if (sub >= errors[system].max_sub) return( errors[system].bad_sub );
  81         if (code >= errors[system].subsystem[sub].max_code) return ( NO_SUCH_ERROR );
  82
  83         *diag = mach_error_full_diag;
  84         return( errors[system].subsystem[sub].codes[code] );
  85 }
  86
  87 const char *
  88 mach_error_string(mach_error_t err)
  89 {
  90         boolean_t diag;
  91
  92         return mach_error_string_int( err, &diag );
  93
  94 }