1 files changed, 104 insertions, 0 deletions
diff --git a/coreutils/sleep.c b/coreutils/sleep.c
new file mode 100644
index 0000000..de18dd0
--- /dev/null
+++ b/coreutils/sleep.c
@@ -0,0 +1,104 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * sleep implementation for busybox
+ *
+ * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+/* 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 "libbb.h"
+
+/* This is a NOFORK applet. Be very careful! */
+
+
+#if ENABLE_FEATURE_FANCY_SLEEP || ENABLE_FEATURE_FLOAT_SLEEP
+static const struct suffix_mult sfx[] = {
+	{ "s", 1 },
+	{ "m", 60 },
+	{ "h", 60*60 },
+	{ "d", 24*60*60 },
+	{ }
+};
+#endif
+
+int sleep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int sleep_main(int argc UNUSED_PARAM, char **argv)
+{
+#if ENABLE_FEATURE_FLOAT_SLEEP
+	double duration;
+	struct timespec ts;
+#else
+	unsigned duration;
+#endif
+
+	++argv;
+	if (!*argv)
+		bb_show_usage();
+
+#if ENABLE_FEATURE_FLOAT_SLEEP
+
+	duration = 0;
+	do {
+		char *arg = *argv;
+		if (strchr(arg, '.')) {
+			double d;
+			int len = strspn(arg, "0123456789.");
+			char sv = arg[len];
+			arg[len] = '\0';
+			d = bb_strtod(arg, NULL);
+			if (errno)
+				bb_show_usage();
+			arg[len] = sv;
+			len--;
+			sv = arg[len];
+			arg[len] = '1';
+			duration += d * xatoul_sfx(&arg[len], sfx);
+			arg[len] = sv;
+		} else
+			duration += xatoul_sfx(arg, sfx);
+	} while (*++argv);
+
+	ts.tv_sec = MAXINT(typeof(ts.tv_sec));
+	ts.tv_nsec = 0;
+	if (duration >= 0 && duration < ts.tv_sec) {
+		ts.tv_sec = duration;
+		ts.tv_nsec = (duration - ts.tv_sec) * 1000000000;
+	}
+	do {
+		errno = 0;
+		nanosleep(&ts, &ts);
+	} while (errno == EINTR);
+
+#elif ENABLE_FEATURE_FANCY_SLEEP
+
+	duration = 0;
+	do {
+		duration += xatou_range_sfx(*argv, 0, UINT_MAX - duration, sfx);
+	} while (*++argv);
+	sleep(duration);
+
+#else /* simple */
+
+	duration = xatou(*argv);
+	sleep(duration);
+	// Off. If it's really needed, provide example why
+	//if (sleep(duration)) {
+	//	bb_perror_nomsg_and_die();
+	//}
+
+#endif
+
+	return EXIT_SUCCESS;
+}