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1/* Copyright (C) 1993-2019 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 <http://www.gnu.org/licenses/>. */
17
18#include <libintl.h>
19#include <stdio.h>
20#include <string.h>
21#include <mach/error.h>
22#include <errorlib.h>
23#include <sys/param.h>
24#include <_itoa.h>
25
26/* It is critical here that we always use the `dcgettext' function for
27 the message translation. Since <libintl.h> only defines the macro
28 `dgettext' to use `dcgettext' for optimizing programs this is not
29 always guaranteed. */
30#ifndef dgettext
31# include <locale.h> /* We need LC_MESSAGES. */
32# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES)
33#endif
34
35/* Return a string describing the errno code in ERRNUM. */
36char *
37__strerror_r (int errnum, char *buf, size_t buflen)
38{
39 int system;
40 int sub;
41 int code;
42 const struct error_system *es;
43 extern void __mach_error_map_compat (int *);
44
45 __mach_error_map_compat (&errnum);
46
47 system = err_get_system (errnum);
48 sub = err_get_sub (errnum);
49 code = err_get_code (errnum);
50
51 if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
52 {
53 /* Buffer we use to print the number in. For a maximum size for
54 `int' of 8 bytes we never need more than 20 digits. */
55 char numbuf[21];
56 const char *unk = _("Error in unknown error system: ");
57 const size_t unklen = strlen (unk);
58 char *p, *q;
59
60 numbuf[20] = '\0';
61 p = _itoa_word (errnum, &numbuf[20], 16, 1);
62
63 /* Now construct the result while taking care for the destination
64 buffer size. */
65 q = __mempcpy (buf, unk, MIN (unklen, buflen));
66 if (unklen < buflen)
67 memcpy (q, p, MIN (&numbuf[21] - p, buflen - unklen));
68
69 /* Terminate the string in any case. */
70 if (buflen > 0)
71 buf[buflen - 1] = '\0';
72
73 return buf;
74 }
75
76 es = &__mach_error_systems[system];
77
78 if (sub >= es->max_sub)
79 return (char *) es->bad_sub;
80
81 if (code >= es->subsystem[sub].max_code)
82 {
83 /* Buffer we use to print the number in. For a maximum size for
84 `int' of 8 bytes we never need more than 20 digits. */
85 char numbuf[21];
86 const char *unk = _("Unknown error ");
87 const size_t unklen = strlen (unk);
88 char *p, *q;
89 size_t len = strlen (es->subsystem[sub].subsys_name);
90
91 numbuf[20] = '\0';
92 p = _itoa_word (errnum, &numbuf[20], 10, 0);
93
94 /* Now construct the result while taking care for the destination
95 buffer size. */
96 q = __mempcpy (buf, unk, MIN (unklen, buflen));
97 if (unklen < buflen)
98 {
99 q = __mempcpy (q, es->subsystem[sub].subsys_name,
100 MIN (len, buflen - unklen));
101 if (unklen + len < buflen)
102 {
103 *q++ = ' ';
104 if (unklen + len + 1 < buflen)
105 memcpy (q, p,
106 MIN (&numbuf[21] - p, buflen - unklen - len - 1));
107 }
108 }
109
110 /* Terminate the string in any case. */
111 if (buflen > 0)
112 buf[buflen - 1] = '\0';
113
114 return buf;
115 }
116
117 return (char *) _(es->subsystem[sub].codes[code]);
118}
119libc_hidden_def (__strerror_r)
120weak_alias (__strerror_r, strerror_r)
121

Warning: That file was not part of the compilation database. It may have many parsing errors.