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 1.2  1997/03/16 17:41:48  drepper
  30  * (mach_error_string_int): Give full prototype.
  31  *
  32  * Revision 1.2  1997/03/14 15:26:29  thomas
  33  * Wed Mar  5 10:40:05 1997  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>
  34  *
  35  *      * mach/mach_error.c (mach_error_string_int): Give full prototype.
  36  *      * mach/errstring.c (mach_error_string_int): Likewise.
  37  *      * mach/error_compat.c (__mach_error_map_compat): Likewise.
  38  *
  39  *      * mach/spin-solid.c: Include <mach/mach_traps.h>.
  40  *      * mach/spin-solid.c (__spin_lock_solid): Provide arg to
  41  *      swtch_pri.
  42  *
  43  *      * mach/mach_init.c: Include <mach/mig_support.h>.
  44  *
  45  *      * mach/mach_error.h (mach_error_string, mach_error,
  46  *      mach_error_type): Always provide prototypes.
  47  *
  48  * Revision 1.1  1993/11/30 17:35:58  roland
  49  * entered into RCS
  50  *
  51  * Revision 2.3  92/04/01  19:38:18  rpd
  52  *      Updated do_compat for kernel device errors,
  53  *      bootstrap file-system errors.
  54  *      [92/03/09            rpd]
  55  *
  56  * Revision 2.2  92/02/20  15:58:08  elf
  57  *      Created from mach_error.c.
  58  *      [92/02/11            rpd]
  59  *
  60  */
  61
  62 #define EXPORT_BOOLEAN
  63 #include <mach/boolean.h>
  64 #include <mach/error.h>
  65 #include <mach_error.h>
  66 #include <errorlib.h>
  67
  68 extern void __mach_error_map_compat (mach_error_t *);
  69
  70 const char *
  71 mach_error_type( err )
  72         mach_error_t            err;
  73 {
  74         int sub, system;
  75
  76         __mach_error_map_compat( &err );
  77
  78         sub = err_get_sub(err);
  79         system = err_get_system(err);
  80
  81         if (system > err_max_system
  82         ||  sub >= errors[system].max_sub ) return( "(?/?)" );
  83         return( errors[system].subsystem[sub].subsys_name );
  84 }
  85
  86 boolean_t mach_error_full_diag = FALSE;
  87
  88 const char *
  89 mach_error_string_int(mach_error_t      err,
  90                       boolean_t         * diag)
  91 {
  92         int sub, system, code;
  93
  94         __mach_error_map_compat( &err );
  95
  96         sub = err_get_sub(err);
  97         system = err_get_system(err);
  98         code = err_get_code(err);
  99
 100         *diag = TRUE;
 101
 102         if (system > err_max_system) return( "(?/?) unknown error system" );
 103         if (sub >= errors[system].max_sub) return( errors[system].bad_sub );
 104         if (code >= errors[system].subsystem[sub].max_code) return ( NO_SUCH_ERROR );
 105
 106         *diag = mach_error_full_diag;
 107         return( errors[system].subsystem[sub].codes[code] );
 108 }
 109
 110 const char *
 111 mach_error_string( err )
 112         mach_error_t            err;
 113 {
 114         boolean_t diag;
 115
 116         return mach_error_string_int( err, &diag );
 117
 118 }