Colony » Colony Scout

/*

 * Copyright (c) 2005-2006, Kohsuke Ohtani

 * All rights reserved.

 *

 * 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.

 * 3. Neither the name of the author nor the names of any co-contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * 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.

 */

/*

 * cmd.c - command processor

 */

#include <sys/prex.h>

#include <sys/ioctl.h>

#include <sys/types.h>

#include <unistd.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <stdio.h>

static void cmd_help(int argc, char **argv);

static void cmd_ver(int argc, char **argv);

static void cmd_mem(int argc, char **argv);

static void cmd_clear(int argc, char **argv);

static void cmd_kill(int argc, char **argv);

static void cmd_reboot(int argc, char **argv);

static void cmd_shutdown(int argc, char **argv);

struct cmd_entry {

        const char *cmd;

        void           (*func)(int, char **);

        const char *usage;

};

static const struct cmd_entry cmd_table[] = {

        { "ver"                 ,cmd_ver        ,"Version information" },

        { "mem"                 ,cmd_mem        ,"Show memory usage" },

        { "clear"        ,cmd_clear        ,"Clear screen" },

        { "kill"        ,cmd_kill        ,"Terminate thread" },

        { "reboot"        ,cmd_reboot        ,"Reboot system" },

        { "shutdown"        ,cmd_shutdown        ,"Shutdown system" },

        { "help"        ,cmd_help        ,"This help" },

        { NULL                ,NULL                ,NULL },

};

static void

cmd_help(int argc, char **argv)

{

        int i = 0;

        while (cmd_table[i].cmd != NULL) {

                printf("%s - %s\n", cmd_table[i].cmd, cmd_table[i].usage);

                i++;

        }

}

static void

cmd_ver(int argc, char **argv)

{

        struct kerninfo info;

        sys_info(INFO_KERNEL, &info);

        printf("Kernel version:\n");

        printf("%s version %s for %s\n",

               info.sysname, info.version, info.machine);

}

static void

cmd_mem(int argc, char **argv)

{

        struct meminfo info;

        sys_info(INFO_MEMORY, &info);

        printf("Memory usage:\n");

        printf(" Used     : %8d KB\n",

               (u_int)((info.total - info.free) / 1024));

        printf(" Free     : %8d KB\n", (u_int)(info.free / 1024));

        printf(" Total    : %8d KB\n", (u_int)(info.total / 1024));

        printf(" Bootdisk : %8d KB\n", (u_int)(info.bootdisk / 1024));

}

static void

cmd_clear(int argc, char **argv)

{

        printf("\33[2J");

}

static void

cmd_kill(int argc, char **argv)

{

        thread_t t;

        char *ep;

        if (argc < 2) {

                puts("Usage: kill thread");

                return;

        }

        t = (thread_t)strtoul(argv[1], &ep, 16);

        printf("Kill thread id:%x\n", (u_int)t);

        if (thread_terminate(t))

                printf("Thread %x does not exist\n", (u_int)t);

}

static void

cmd_reboot(int argc, char **argv)

{

        device_t pm_dev;

        int error, state = PWR_REBOOT;

        if ((error = device_open("pm", 0, &pm_dev)) == 0) {

                error = device_ioctl(pm_dev, PMIOC_SET_POWER, &state);

                device_close(pm_dev);

        }

        if (error)

                printf("Error %d\n", error);

}

static void

cmd_shutdown(int argc, char **argv)

{

        device_t pm_dev;

        int error, state = PWR_OFF;

        if ((error = device_open("pm", 0, &pm_dev)) == 0) {

                error = device_ioctl(pm_dev, PMIOC_SET_POWER, &state);

                device_close(pm_dev);

        }

        if (error)

                printf("Error %d\n", error);

}

int

dispatch_cmd(int argc, char **argv)

{

        int i = 0;

        while (cmd_table[i].cmd != NULL) {

                if (!strcmp(argv[0], cmd_table[i].cmd)) {

                        (cmd_table[i].func)(argc, argv);

                        break;

                }

                i++;

        }

        if (cmd_table[i].cmd == NULL)

                printf("%s: command not found\n", argv[0]);

        return 0;

}