1 | /* |
2 | * libfdt - Flat Device Tree manipulation |
3 | * Copyright (C) 2006 David Gibson, IBM Corporation. |
4 | * |
5 | * libfdt is dual licensed: you can use it either under the terms of |
6 | * the GPL, or the BSD license, at your option. |
7 | * |
8 | * a) This library is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU General Public License as |
10 | * published by the Free Software Foundation; either version 2 of the |
11 | * License, or (at your option) any later version. |
12 | * |
13 | * This library is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
17 | * |
18 | * You should have received a copy of the GNU General Public |
19 | * License along with this library; if not, write to the Free |
20 | * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
21 | * MA 02110-1301 USA |
22 | * |
23 | * Alternatively, |
24 | * |
25 | * b) Redistribution and use in source and binary forms, with or |
26 | * without modification, are permitted provided that the following |
27 | * conditions are met: |
28 | * |
29 | * 1. Redistributions of source code must retain the above |
30 | * copyright notice, this list of conditions and the following |
31 | * disclaimer. |
32 | * 2. Redistributions in binary form must reproduce the above |
33 | * copyright notice, this list of conditions and the following |
34 | * disclaimer in the documentation and/or other materials |
35 | * provided with the distribution. |
36 | * |
37 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
38 | * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
39 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
40 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
41 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
42 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
43 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
44 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
45 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
46 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
47 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
48 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
49 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
50 | */ |
51 | #include "libfdt_env.h" |
52 | |
53 | #include <fdt.h> |
54 | #include <libfdt.h> |
55 | |
56 | #include "libfdt_internal.h" |
57 | |
58 | struct fdt_errtabent { |
59 | const char *str; |
60 | }; |
61 | |
62 | #define FDT_ERRTABENT(val) \ |
63 | [(val)] = { .str = #val, } |
64 | |
65 | static struct fdt_errtabent fdt_errtable[] = { |
66 | FDT_ERRTABENT(FDT_ERR_NOTFOUND), |
67 | FDT_ERRTABENT(FDT_ERR_EXISTS), |
68 | FDT_ERRTABENT(FDT_ERR_NOSPACE), |
69 | |
70 | FDT_ERRTABENT(FDT_ERR_BADOFFSET), |
71 | FDT_ERRTABENT(FDT_ERR_BADPATH), |
72 | FDT_ERRTABENT(FDT_ERR_BADPHANDLE), |
73 | FDT_ERRTABENT(FDT_ERR_BADSTATE), |
74 | |
75 | FDT_ERRTABENT(FDT_ERR_TRUNCATED), |
76 | FDT_ERRTABENT(FDT_ERR_BADMAGIC), |
77 | FDT_ERRTABENT(FDT_ERR_BADVERSION), |
78 | FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE), |
79 | FDT_ERRTABENT(FDT_ERR_BADLAYOUT), |
80 | FDT_ERRTABENT(FDT_ERR_INTERNAL), |
81 | FDT_ERRTABENT(FDT_ERR_BADNCELLS), |
82 | FDT_ERRTABENT(FDT_ERR_BADVALUE), |
83 | FDT_ERRTABENT(FDT_ERR_BADOVERLAY), |
84 | FDT_ERRTABENT(FDT_ERR_NOPHANDLES), |
85 | }; |
86 | #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0])) |
87 | |
88 | const char *fdt_strerror(int errval) |
89 | { |
90 | if (errval > 0) |
91 | return "<valid offset/length>" ; |
92 | else if (errval == 0) |
93 | return "<no error>" ; |
94 | else if (errval > -FDT_ERRTABSIZE) { |
95 | const char *s = fdt_errtable[-errval].str; |
96 | |
97 | if (s) |
98 | return s; |
99 | } |
100 | |
101 | return "<unknown error>" ; |
102 | } |
103 | |