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69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* sleep implementation for busybox
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*
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* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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/* BB_AUDIT SUSv3 compliant */
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/* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */
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/* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */
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/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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*
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* Rewritten to do proper arg and error checking.
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* Also, added a 'fancy' configuration to accept multiple args with
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* time suffixes for seconds, minutes, hours, and days.
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*/
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#include "busybox.h"
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/* This is a NOFORK applet. Be very careful! */
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#if ENABLE_FEATURE_FANCY_SLEEP
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static const struct suffix_mult sfx[] = {
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{ "s", 1 },
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{ "m", 60 },
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{ "h", 60*60 },
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{ "d", 24*60*60 },
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{ NULL, 0 }
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};
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#endif
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int sleep_main(int argc, char **argv);
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int sleep_main(int argc, char **argv)
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{
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unsigned duration;
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#if ENABLE_FEATURE_FANCY_SLEEP
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if (argc < 2) {
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bb_show_usage();
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}
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++argv;
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duration = 0;
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do {
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duration += xatoul_range_sfx(*argv, 0, UINT_MAX-duration, sfx);
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} while (*++argv);
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#else /* FEATURE_FANCY_SLEEP */
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if (argc != 2) {
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bb_show_usage();
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}
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duration = xatou(argv[1]);
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#endif /* FEATURE_FANCY_SLEEP */
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if (sleep(duration)) {
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bb_perror_nomsg_and_die();
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}
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return EXIT_SUCCESS;
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}
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