1/* Copyright (C) 1993-2022 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. */
26char *
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: %d", _("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}
62libc_hidden_def (__strerror_r)
63weak_alias (__strerror_r, strerror_r)
64

source code of glibc/sysdeps/mach/_strerror.c