1 /* Copyright (C) 1993 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
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 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA. */
22 #include <mach/error.h>
25 /* Return a string describing the errno code in ERRNUM. */
27 DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
29 const int system = err_get_system (errnum);
30 const int sub = err_get_sub (errnum);
31 const int code = err_get_code (errnum);
32 const struct error_system *es;
34 if (system > err_max_system)
36 sprintf (buf, "Unknown error system %d", system);
40 es = &__mach_error_systems[system];
42 if (sub >= es->max_sub)
43 return (char *) es->bad_sub;
45 if (code >= es->subsystem[sub].max_code)
47 sprintf (buf, "Unknown error %d in system %d subsystem %d",
48 code, system, subsystem);
52 return (char *) es->subsystem[sub].codes[code];