xref: /freebsd/tools/tools/decioctl/decioctl.c (revision 076ad2f8)
1 /*-
2  * Copyright (c) 2005-2006,2016 John H. Baldwin <jhb@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/ioccom.h>
31 #include <ctype.h>
32 #include <errno.h>
33 #include <limits.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <sysdecode.h>
37 
38 static void
39 usage(char **av)
40 {
41 	fprintf(stderr, "%s: <ioctl> [ ... ]\n", av[0]);
42 	exit(1);
43 }
44 
45 int
46 main(int ac, char **av)
47 {
48 	unsigned long cmd;
49 	const char *name;
50 	char *cp;
51 	int group, i;
52 
53 	if (ac < 2)
54 		usage(av);
55 	printf("  command :  dir  group num  len name\n");
56 	for (i = 1; i < ac; i++) {
57 		errno = 0;
58 		cmd = strtoul(av[i], &cp, 0);
59 		if (*cp != '\0' || errno != 0) {
60 			fprintf(stderr, "Invalid integer: %s\n", av[i]);
61 			usage(av);
62 		}
63 		printf("0x%08lx: ", cmd);
64 		switch (cmd & IOC_DIRMASK) {
65 		case IOC_VOID:
66 			printf("VOID ");
67 			break;
68 		case IOC_OUT:
69 			printf("OUT  ");
70 			break;
71 		case IOC_IN:
72 			printf("IN   ");
73 			break;
74 		case IOC_INOUT:
75 			printf("INOUT");
76 			break;
77 		default:
78 			printf("%01lx ???", (cmd & IOC_DIRMASK) >> 29);
79 			break;
80 		}
81 		printf(" ");
82 		group = IOCGROUP(cmd);
83 		if (isprint(group))
84 			printf(" '%c' ", group);
85 		else
86 			printf(" 0x%02x", group);
87 		printf(" %3lu %4lu", cmd & 0xff, IOCPARM_LEN(cmd));
88 		name = sysdecode_ioctlname(cmd);
89 		if (name != NULL)
90 			printf(" %s", name);
91 		printf("\n");
92 	}
93 	return (0);
94 }
95