xref: /freebsd/tools/tools/decioctl/decioctl.c (revision 148a8da8)
1 /*-
2  * Copyright (c) 2005-2006,2016 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/ioccom.h>
30 #include <ctype.h>
31 #include <errno.h>
32 #include <limits.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <sysdecode.h>
36 
37 static void
38 usage(char **av)
39 {
40 	fprintf(stderr, "%s: <ioctl> [ ... ]\n", av[0]);
41 	exit(1);
42 }
43 
44 int
45 main(int ac, char **av)
46 {
47 	unsigned long cmd;
48 	const char *name;
49 	char *cp;
50 	int group, i;
51 
52 	if (ac < 2)
53 		usage(av);
54 	printf("  command :  dir  group num  len name\n");
55 	for (i = 1; i < ac; i++) {
56 		errno = 0;
57 		cmd = strtoul(av[i], &cp, 0);
58 		if (*cp != '\0' || errno != 0) {
59 			fprintf(stderr, "Invalid integer: %s\n", av[i]);
60 			usage(av);
61 		}
62 		printf("0x%08lx: ", cmd);
63 		switch (cmd & IOC_DIRMASK) {
64 		case IOC_VOID:
65 			printf("VOID ");
66 			break;
67 		case IOC_OUT:
68 			printf("OUT  ");
69 			break;
70 		case IOC_IN:
71 			printf("IN   ");
72 			break;
73 		case IOC_INOUT:
74 			printf("INOUT");
75 			break;
76 		default:
77 			printf("%01lx ???", (cmd & IOC_DIRMASK) >> 29);
78 			break;
79 		}
80 		printf(" ");
81 		group = IOCGROUP(cmd);
82 		if (isprint(group))
83 			printf(" '%c' ", group);
84 		else
85 			printf(" 0x%02x", group);
86 		printf(" %3lu %4lu", cmd & 0xff, IOCPARM_LEN(cmd));
87 		name = sysdecode_ioctlname(cmd);
88 		if (name != NULL)
89 			printf(" %s", name);
90 		printf("\n");
91 	}
92 	return (0);
93 }
94