root / prex-0.9.0 / usr / test / shutdown / shutdown.c @ 03e9c04a
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1 | 03e9c04a | Brad Neuman | /*
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2 | * Copyright (c) 2006-2009, Kohsuke Ohtani
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the author nor the names of any co-contributors
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14 | * may be used to endorse or promote products derived from this software
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15 | * without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | * SUCH DAMAGE.
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28 | */
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29 | |||
30 | /*
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31 | * shutdown.c - test shutdown function.
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32 | *
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33 | * NOTE: This program requires CAP_PWRMGMT capability.
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34 | */
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35 | |||
36 | #include <sys/prex.h> |
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37 | #include <sys/ioctl.h> |
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38 | #include <ipc/pow.h> |
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39 | #include <ipc/ipc.h> |
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40 | |||
41 | #include <unistd.h> |
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42 | #include <err.h> |
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43 | #include <errno.h> |
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44 | #include <stdlib.h> |
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45 | #include <stdio.h> |
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46 | #include <string.h> |
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47 | #include <signal.h> |
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48 | |||
49 | static void usage(void); |
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50 | static void shutdown(int); |
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51 | |||
52 | int
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53 | main(int argc, char *argv[]) |
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54 | { |
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55 | int ch, checkch, rflag;
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56 | |||
57 | rflag = 0;
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58 | if (argc > 1) { |
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59 | if (!strcmp(argv[1], "-r")) |
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60 | rflag = 1; /* reboot */ |
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61 | else {
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62 | usage(); |
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63 | exit(1);
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64 | } |
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65 | } |
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66 | /*
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67 | * User confirmation is required for security.
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68 | */
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69 | printf("Do you want to shutdown the system now? (y/n) ");
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70 | checkch = ch = getchar(); |
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71 | while (ch != '\n' && ch != EOF) |
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72 | ch = getchar(); |
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73 | if (checkch != 'y') |
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74 | exit(0);
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75 | |||
76 | shutdown(rflag); |
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77 | |||
78 | fprintf(stderr, "Shutdown failed!\n");
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79 | exit(1);
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80 | } |
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81 | |||
82 | static void |
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83 | usage(void)
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84 | { |
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85 | |||
86 | fprintf(stderr, "usage: shutdown [-r]\n");
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87 | exit(1);
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88 | /* NOTREACHED */
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89 | } |
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90 | |||
91 | static void |
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92 | shutdown(int reboot)
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93 | { |
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94 | object_t powobj; |
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95 | struct msg m;
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96 | int error;
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97 | |||
98 | if ((error = object_lookup("!pow", &powobj)) != 0) |
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99 | return;
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100 | |||
101 | m.hdr.code = POW_SET_POWER; |
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102 | m.data[0] = reboot ? PWR_REBOOT : PWR_OFF;
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103 | error = msg_send(powobj, &m, sizeof(m));
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104 | } |