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  * HISTORY
  28  * $Log$
  29  * Revision 1.1  1993/11/30 17:35:58  roland
  30  * entered into RCS
  31  *
  32  * Revision 2.3  92/04/01  19:38:18  rpd
  33  *      Updated do_compat for kernel device errors,
  34  *      bootstrap file-system errors.
  35  *      [92/03/09            rpd]
  36  *
  37  * Revision 2.2  92/02/20  15:58:08  elf
  38  *      Created from mach_error.c.
  39  *      [92/02/11            rpd]
  40  *
  41  */
  42
  43 #define EXPORT_BOOLEAN
  44 #include <mach/boolean.h>
  45 #include <mach/error.h>
  46 #include <mach_error.h>
  47 #include <errorlib.h>
  48
  49 extern void __mach_error_map_compat (mach_error_t *);
  50
  51 const char *
  52 mach_error_type( err )
  53         mach_error_t            err;
  54 {
  55         int sub, system;
  56
  57         __mach_error_map_compat( &err );
  58
  59         sub = err_get_sub(err);
  60         system = err_get_system(err);
  61
  62         if (system > err_max_system
  63         ||  sub >= errors[system].max_sub ) return( "(?/?)" );
  64         return( errors[system].subsystem[sub].subsys_name );
  65 }
  66
  67 boolean_t mach_error_full_diag = FALSE;
  68
  69 const char *
  70 mach_error_string_int( err, diag )
  71         mach_error_t            err;
  72         boolean_t               * diag;
  73 {
  74         int sub, system, code;
  75
  76         __mach_error_map_compat( &err );
  77
  78         sub = err_get_sub(err);
  79         system = err_get_system(err);
  80         code = err_get_code(err);
  81
  82         *diag = TRUE;
  83
  84         if (system > err_max_system) return( "(?/?) unknown error system" );
  85         if (sub >= errors[system].max_sub) return( errors[system].bad_sub );
  86         if (code >= errors[system].subsystem[sub].max_code) return ( NO_SUCH_ERROR );
  87
  88         *diag = mach_error_full_diag;
  89         return( errors[system].subsystem[sub].codes[code] );
  90 }
  91
  92 const char *
  93 mach_error_string( err )
  94         mach_error_t            err;
  95 {
  96         boolean_t diag;
  97
  98         return mach_error_string_int( err, &diag );
  99
 100 }