1 /* $NetBSD: fdt_strerror.c,v 1.1.1.3 2019/12/22 12:30:36 skrll Exp $ */
2
3 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
4 /*
5 * libfdt - Flat Device Tree manipulation
6 * Copyright (C) 2006 David Gibson, IBM Corporation.
7 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
8 */
9 #include "libfdt_env.h"
10
11 #include <fdt.h>
12 #include <libfdt.h>
13
14 #include "libfdt_internal.h"
15
16 struct fdt_errtabent {
17 const char *str;
18 };
19
20 #define FDT_ERRTABENT(val) \
21 [(val)] = { .str = #val, }
22
23 static struct fdt_errtabent fdt_errtable[] = {
24 FDT_ERRTABENT(FDT_ERR_NOTFOUND),
25 FDT_ERRTABENT(FDT_ERR_EXISTS),
26 FDT_ERRTABENT(FDT_ERR_NOSPACE),
27
28 FDT_ERRTABENT(FDT_ERR_BADOFFSET),
29 FDT_ERRTABENT(FDT_ERR_BADPATH),
30 FDT_ERRTABENT(FDT_ERR_BADPHANDLE),
31 FDT_ERRTABENT(FDT_ERR_BADSTATE),
32
33 FDT_ERRTABENT(FDT_ERR_TRUNCATED),
34 FDT_ERRTABENT(FDT_ERR_BADMAGIC),
35 FDT_ERRTABENT(FDT_ERR_BADVERSION),
36 FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
37 FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
38 FDT_ERRTABENT(FDT_ERR_INTERNAL),
39 FDT_ERRTABENT(FDT_ERR_BADNCELLS),
40 FDT_ERRTABENT(FDT_ERR_BADVALUE),
41 FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
42 FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
43 FDT_ERRTABENT(FDT_ERR_BADFLAGS),
44 };
45 #define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
46
fdt_strerror(int errval)47 const char *fdt_strerror(int errval)
48 {
49 if (errval > 0)
50 return "<valid offset/length>";
51 else if (errval == 0)
52 return "<no error>";
53 else if (errval > -FDT_ERRTABSIZE) {
54 const char *s = fdt_errtable[-errval].str;
55
56 if (s)
57 return s;
58 }
59
60 return "<unknown error>";
61 }
62