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 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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8 | */
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9 |
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10 | /* BB_AUDIT SUSv3 compliant */
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11 | /* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */
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12 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */
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13 |
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14 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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15 | *
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16 | * Rewritten to do proper arg and error checking.
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17 | * Also, added a 'fancy' configuration to accept multiple args with
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18 | * time suffixes for seconds, minutes, hours, and days.
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19 | */
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20 |
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21 | #include "libbb.h"
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22 |
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23 | /* This is a NOFORK applet. Be very careful! */
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24 |
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25 |
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26 | #if ENABLE_FEATURE_FANCY_SLEEP
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27 | static const struct suffix_mult sfx[] = {
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28 | { "s", 1 },
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29 | { "m", 60 },
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30 | { "h", 60*60 },
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31 | { "d", 24*60*60 },
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32 | { }
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33 | };
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34 | #endif
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35 |
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36 | int sleep_main(int argc, char **argv);
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37 | int sleep_main(int argc, char **argv)
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38 | {
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39 | unsigned duration;
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40 |
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41 | #if ENABLE_FEATURE_FANCY_SLEEP
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42 |
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43 | if (argc < 2) {
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44 | bb_show_usage();
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45 | }
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46 |
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47 | ++argv;
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48 | duration = 0;
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49 | do {
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50 | duration += xatoul_range_sfx(*argv, 0, UINT_MAX-duration, sfx);
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51 | } while (*++argv);
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52 |
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53 | #else /* 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 | duration = xatou(argv[1]);
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60 |
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61 | #endif /* FEATURE_FANCY_SLEEP */
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62 |
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63 | if (sleep(duration)) {
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64 | bb_perror_nomsg_and_die();
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65 | }
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66 |
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67 | return EXIT_SUCCESS;
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68 | }
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