1 files changed, 24 insertions, 0 deletions
diff --git a/bin/sleep/sleep.c b/bin/sleep/sleep.c
new file mode 100644
index 00000000..7b4ce77a
--- /dev/null
+++ b/bin/sleep/sleep.c
@@ -0,0 +1,24 @@
+#include <err.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+int main(int argc, char **argv)
+{
+	double seconds;
+	struct timespec ts;
+
+	if (argc != 2) {
+		write(1, "usage: sleep seconds\n", 21);
+		return 0;
+	}
+
+	seconds = strtod(argv[1], NULL);
+	ts.tv_sec = (time_t)seconds;
+	ts.tv_nsec = (long)((seconds - (double)ts.tv_sec) * 1e9);
+
+	if (nanosleep(&ts, NULL) < 0)
+		err(1, "nanosleep");
+
+	return 0;
+}