87 lines
2.1 KiB
C
87 lines
2.1 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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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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 <stdlib.h>
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#include <limits.h>
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#include <unistd.h>
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#include "busybox.h"
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#ifdef CONFIG_FEATURE_FANCY_SLEEP
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static const struct suffix_mult sleep_suffixes[] = {
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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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extern int sleep_main(int argc, char **argv)
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{
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unsigned int duration;
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#ifdef CONFIG_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 += bb_xgetularg_bnd_sfx(*argv, 10,
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0, UINT_MAX-duration,
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sleep_suffixes);
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} while (*++argv);
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#else /* CONFIG_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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#if UINT_MAX == ULONG_MAX
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duration = bb_xgetularg10(argv[1]);
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#else
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duration = bb_xgetularg10_bnd(argv[1], 0, UINT_MAX);
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#endif
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#endif /* CONFIG_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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