/*-
 * Copyright (c) 2005-2006,2016 John H. Baldwin <jhb@FreeBSD.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
#include <sys/ioccom.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysdecode.h>

static void
usage(char **av)
{
        fprintf(stderr, "%s: <ioctl> [ ... ]\n", av[0]);
        exit(1);
}

int
main(int ac, char **av)
{
        unsigned long cmd;
        const char *name;
        char *cp;
        int group, i;

        if (ac < 2)
                usage(av);
        printf("  command :  dir  group num  len name\n");
        for (i = 1; i < ac; i++) {
                errno = 0;
                cmd = strtoul(av[i], &cp, 0);
                if (*cp != '\0' || errno != 0) {
                        fprintf(stderr, "Invalid integer: %s\n", av[i]);
                        usage(av);
                }
                printf("0x%08lx: ", cmd);
                switch (cmd & IOC_DIRMASK) {
                case IOC_VOID:
                        printf("VOID ");
                        break;
                case IOC_OUT:
                        printf("OUT  ");
                        break;
                case IOC_IN:
                        printf("IN   ");
                        break;
                case IOC_INOUT:
                        printf("INOUT");
                        break;
                default:
                        printf("%01lx ???", (cmd & IOC_DIRMASK) >> 29);
                        break;
                }
                printf(" ");
                group = IOCGROUP(cmd);
                if (isprint(group))
                        printf(" '%c' ", group);
                else
                        printf(" 0x%02x", group);
                printf(" %3lu %4lu", cmd & 0xff, IOCPARM_LEN(cmd));
                name = sysdecode_ioctlname(cmd);
                if (name != NULL)
                        printf(" %s", name);
                printf("\n");
        }
        return (0);
}