xref: /freebsd/lib/libsysdecode/errno.c (revision 4b9d6057)
1 /*-
2  * Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org>
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  */
25 
26 #include <sys/param.h>
27 #include <sys/acl.h>
28 #include <sys/wait.h>
29 #include <errno.h>
30 #include <limits.h>
31 #include <stdbool.h>
32 #include <stdio.h>
33 #include <sysdecode.h>
34 
35 #if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
36 #include <compat/linux/linux_errno.h>
37 #include <compat/linux/linux_errno.inc>
38 #endif
39 
40 int
41 sysdecode_abi_to_freebsd_errno(enum sysdecode_abi abi, int error)
42 {
43 
44 	switch (abi) {
45 	case SYSDECODE_ABI_FREEBSD:
46 	case SYSDECODE_ABI_FREEBSD32:
47 		return (error);
48 #if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
49 	case SYSDECODE_ABI_LINUX:
50 	case SYSDECODE_ABI_LINUX32: {
51 		unsigned int i;
52 
53 		/*
54 		 * This is imprecise since it returns the first
55 		 * matching errno.
56 		 */
57 		for (i = 0; i < nitems(linux_errtbl); i++) {
58 			if (error == linux_errtbl[i])
59 				return (i);
60 		}
61 		break;
62 	}
63 #endif
64 	default:
65 		break;
66 	}
67 	return (INT_MAX);
68 }
69 
70 int
71 sysdecode_freebsd_to_abi_errno(enum sysdecode_abi abi, int error)
72 {
73 
74 	switch (abi) {
75 	case SYSDECODE_ABI_FREEBSD:
76 	case SYSDECODE_ABI_FREEBSD32:
77 		return (error);
78 #if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
79 	case SYSDECODE_ABI_LINUX:
80 	case SYSDECODE_ABI_LINUX32:
81 		if (error >= 0 && error <= ELAST)
82 			return (linux_errtbl[error]);
83 		break;
84 #endif
85 	default:
86 		break;
87 	}
88 	return (INT_MAX);
89 }
90 
91