xref: /freebsd/lib/libsysdecode/errno.c (revision c47e2e5170491933f9b756eefeb8f315f3572942)
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/cdefs.h>
27 __FBSDID("$FreeBSD$");
28 
29 #include <sys/param.h>
30 #include <sys/acl.h>
31 #include <sys/wait.h>
32 #include <errno.h>
33 #include <limits.h>
34 #include <stdbool.h>
35 #include <stdio.h>
36 #include <sysdecode.h>
37 
38 #if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
39 #include <compat/linux/linux_errno.h>
40 #include <compat/linux/linux_errno.inc>
41 #endif
42 
43 int
44 sysdecode_abi_to_freebsd_errno(enum sysdecode_abi abi, int error)
45 {
46 
47 	switch (abi) {
48 	case SYSDECODE_ABI_FREEBSD:
49 	case SYSDECODE_ABI_FREEBSD32:
50 		return (error);
51 #if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
52 	case SYSDECODE_ABI_LINUX:
53 	case SYSDECODE_ABI_LINUX32: {
54 		unsigned int i;
55 
56 		/*
57 		 * This is imprecise since it returns the first
58 		 * matching errno.
59 		 */
60 		for (i = 0; i < nitems(linux_errtbl); i++) {
61 			if (error == linux_errtbl[i])
62 				return (i);
63 		}
64 		break;
65 	}
66 #endif
67 	default:
68 		break;
69 	}
70 	return (INT_MAX);
71 }
72 
73 int
74 sysdecode_freebsd_to_abi_errno(enum sysdecode_abi abi, int error)
75 {
76 
77 	switch (abi) {
78 	case SYSDECODE_ABI_FREEBSD:
79 	case SYSDECODE_ABI_FREEBSD32:
80 		return (error);
81 #if defined(__aarch64__) || defined(__amd64__) || defined(__i386__)
82 	case SYSDECODE_ABI_LINUX:
83 	case SYSDECODE_ABI_LINUX32:
84 		if (error >= 0 && error <= ELAST)
85 			return (linux_errtbl[error]);
86 		break;
87 #endif
88 	default:
89 		break;
90 	}
91 	return (INT_MAX);
92 }
93 
94