1  /* Copyright (C) 1993-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <string.h>
      19  #include <libintl.h>
      20  #include <stdio.h>
      21  #include <string.h>
      22  #include <mach/error.h>
      23  #include <errorlib.h>
      24  
      25  /* Return a string describing the errno code in ERRNUM.  */
      26  char *
      27  __strerror_r (int errnum, char *buf, size_t buflen)
      28  {
      29    int system;
      30    int sub;
      31    int code;
      32    const struct error_system *es;
      33    extern void __mach_error_map_compat (int *);
      34  
      35    __mach_error_map_compat (&errnum);
      36  
      37    system = err_get_system (errnum);
      38    sub = err_get_sub (errnum);
      39    code = err_get_code (errnum);
      40  
      41    if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
      42      {
      43        __snprintf (buf, buflen, "%s%X", _("Error in unknown error system: "),
      44  		  errnum);
      45        return buf;
      46      }
      47  
      48    es = &__mach_error_systems[system];
      49  
      50    if (sub >= es->max_sub)
      51      return (char *) es->bad_sub;
      52  
      53    if (code >= es->subsystem[sub].max_code)
      54      {
      55        __snprintf (buf, buflen, "%s%s %d", _("Unknown error "),
      56  		  es->subsystem[sub].subsys_name, errnum);
      57        return buf;
      58      }
      59  
      60    return (char *) _(es->subsystem[sub].codes[code]);
      61  }
      62  libc_hidden_def (__strerror_r)
      63  weak_alias (__strerror_r, strerror_r)