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f7a9f785 | 1 | /* Copyright (C) 1993-2016 Free Software Foundation, Inc. |
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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 | |
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15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
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17 | |
18 | #include <errno.h> | |
19 | #include <libintl.h> | |
20 | #include <stdio.h> | |
21 | #include <string.h> | |
22 | #include <mach/error.h> | |
23 | #include <errorlib.h> | |
24 | #include <sys/param.h> | |
eb96ffb0 | 25 | #include <_itoa.h> |
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26 | |
27 | /* It is critical here that we always use the `dcgettext' function for | |
28 | the message translation. Since <libintl.h> only defines the macro | |
29 | `dgettext' to use `dcgettext' for optimizing programs this is not | |
30 | always guaranteed. */ | |
31 | #ifndef dgettext | |
32 | # include <locale.h> /* We need LC_MESSAGES. */ | |
33 | # define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES) | |
34 | #endif | |
35 | ||
36 | /* Fill buf with a string describing the errno code in ERRNUM. */ | |
37 | int | |
38 | __xpg_strerror_r (int errnum, char *buf, size_t buflen) | |
39 | { | |
40 | int system; | |
41 | int sub; | |
42 | int code; | |
43 | const struct error_system *es; | |
44 | extern void __mach_error_map_compat (int *); | |
45 | const char *estr; | |
46 | ||
47 | __mach_error_map_compat (&errnum); | |
48 | ||
49 | system = err_get_system (errnum); | |
50 | sub = err_get_sub (errnum); | |
51 | code = err_get_code (errnum); | |
52 | ||
53 | if (system > err_max_system || ! __mach_error_systems[system].bad_sub) | |
98727dbe | 54 | return EINVAL; |
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55 | |
56 | es = &__mach_error_systems[system]; | |
57 | ||
58 | if (sub >= es->max_sub) | |
59 | estr = (const char *) es->bad_sub; | |
60 | else if (code >= es->subsystem[sub].max_code) | |
98727dbe | 61 | return EINVAL; |
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62 | else |
63 | estr = (const char *) _(es->subsystem[sub].codes[code]); | |
64 | ||
65 | size_t estrlen = strlen (estr) + 1; | |
66 | ||
67 | if (buflen < estrlen) | |
98727dbe | 68 | return ERANGE; |
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69 | |
70 | memcpy (buf, estr, estrlen); | |
71 | return 0; | |
72 | } |