1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * sleep implementation for busybox
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4 | *
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5 | * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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6 | *
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7 | * This program is free software; you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation; either version 2 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * This program is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | * General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 | *
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21 | */
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22 |
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23 | /* BB_AUDIT SUSv3 compliant */
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24 | /* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */
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25 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */
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26 |
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27 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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28 | *
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29 | * Rewritten to do proper arg and error checking.
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30 | * Also, added a 'fancy' configuration to accept multiple args with
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31 | * time suffixes for seconds, minutes, hours, and days.
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32 | */
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33 |
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34 | #include <stdlib.h>
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35 | #include <limits.h>
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36 | #include <unistd.h>
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37 | #include "busybox.h"
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38 |
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39 | #ifdef CONFIG_FEATURE_FANCY_SLEEP
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40 | static const struct suffix_mult sleep_suffixes[] = {
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41 | { "s", 1 },
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42 | { "m", 60 },
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43 | { "h", 60*60 },
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44 | { "d", 24*60*60 },
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45 | { NULL, 0 }
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46 | };
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47 | #endif
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48 |
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49 | int sleep_main(int argc, char **argv)
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50 | {
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51 | unsigned int duration;
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52 |
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53 | #ifdef CONFIG_FEATURE_FANCY_SLEEP
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54 |
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55 | if (argc < 2) {
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56 | bb_show_usage();
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57 | }
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58 |
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59 | ++argv;
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60 | duration = 0;
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61 | do {
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62 | duration += bb_xgetularg_bnd_sfx(*argv, 10,
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63 | 0, UINT_MAX-duration,
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64 | sleep_suffixes);
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65 | } while (*++argv);
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66 |
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67 | #else /* CONFIG_FEATURE_FANCY_SLEEP */
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68 |
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69 | if (argc != 2) {
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70 | bb_show_usage();
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71 | }
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72 |
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73 | #if UINT_MAX == ULONG_MAX
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74 | duration = bb_xgetularg10(argv[1]);
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75 | #else
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76 | duration = bb_xgetularg10_bnd(argv[1], 0, UINT_MAX);
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77 | #endif
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78 |
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79 | #endif /* CONFIG_FEATURE_FANCY_SLEEP */
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80 |
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81 | if (sleep(duration)) {
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82 | bb_perror_nomsg_and_die();
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83 | }
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84 |
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85 | return EXIT_SUCCESS;
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86 | }
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