diff options
Diffstat (limited to 'busybox/coreutils/sleep.c')
-rw-r--r-- | busybox/coreutils/sleep.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/busybox/coreutils/sleep.c b/busybox/coreutils/sleep.c new file mode 100644 index 0000000..506192d --- /dev/null +++ b/busybox/coreutils/sleep.c @@ -0,0 +1,86 @@ +/* vi: set sw=4 ts=4: */ +/* + * sleep implementation for busybox + * + * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +/* BB_AUDIT SUSv3 compliant */ +/* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */ +/* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */ + +/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) + * + * Rewritten to do proper arg and error checking. + * Also, added a 'fancy' configuration to accept multiple args with + * time suffixes for seconds, minutes, hours, and days. + */ + +#include <stdlib.h> +#include <limits.h> +#include <unistd.h> +#include "busybox.h" + +#ifdef CONFIG_FEATURE_FANCY_SLEEP +static const struct suffix_mult sleep_suffixes[] = { + { "s", 1 }, + { "m", 60 }, + { "h", 60*60 }, + { "d", 24*60*60 }, + { NULL, 0 } +}; +#endif + +extern int sleep_main(int argc, char **argv) +{ + unsigned int duration; + +#ifdef CONFIG_FEATURE_FANCY_SLEEP + + if (argc < 2) { + bb_show_usage(); + } + + ++argv; + duration = 0; + do { + duration += bb_xgetularg_bnd_sfx(*argv, 10, + 0, UINT_MAX-duration, + sleep_suffixes); + } while (*++argv); + +#else /* CONFIG_FEATURE_FANCY_SLEEP */ + + if (argc != 2) { + bb_show_usage(); + } + +#if UINT_MAX == ULONG_MAX + duration = bb_xgetularg10(argv[1]); +#else + duration = bb_xgetularg10_bnd(argv[1], 0, UINT_MAX); +#endif + +#endif /* CONFIG_FEATURE_FANCY_SLEEP */ + + if (sleep(duration)) { + bb_perror_nomsg_and_die(); + } + + return EXIT_SUCCESS; +} |