1 | /* Copyright (C) 1997-2021 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <libintl.h> |
20 | #include <netdb.h> |
21 | #include <stdint.h> |
22 | #include <stdio.h> |
23 | |
24 | |
25 | #define MSGSTRFIELD(line) MSGSTRFIELD1 (line) |
26 | #define MSGSTRFIELD1(line) str##line |
27 | static const union msgstr_t |
28 | { |
29 | struct |
30 | { |
31 | #define _S(n, s) char MSGSTRFIELD(__LINE__)[sizeof (s)]; |
32 | #include "gai_strerror-strs.h" |
33 | #undef _S |
34 | }; |
35 | char str[0]; |
36 | } msgstr = |
37 | { |
38 | { |
39 | #define _S(n, s) s, |
40 | #include "gai_strerror-strs.h" |
41 | #undef _S |
42 | } |
43 | }; |
44 | static const struct |
45 | { |
46 | int16_t code; |
47 | uint16_t idx; |
48 | } msgidx[] = |
49 | { |
50 | #define _S(n, s) { n, offsetof (union msgstr_t, MSGSTRFIELD (__LINE__)) }, |
51 | #include "gai_strerror-strs.h" |
52 | #undef _S |
53 | }; |
54 | |
55 | |
56 | const char * |
57 | gai_strerror (int code) |
58 | { |
59 | const char *result = "Unknown error" ; |
60 | for (size_t i = 0; i < sizeof (msgidx) / sizeof (msgidx[0]); ++i) |
61 | if (msgidx[i].code == code) |
62 | { |
63 | result = msgstr.str + msgidx[i].idx; |
64 | break; |
65 | } |
66 | |
67 | return _(result); |
68 | } |
69 | libc_hidden_def (gai_strerror) |
70 | |