@@ 122,7 122,7 @@ T       rm
     W   sccs
 T       sed
       N sh
-T       sleep
+  D     sleep
 T       sort
 T       split
 T       strings

@@ 20,6 20,7 @@ man_files = [
 	'logname.1',
 	'nice.1',
 	'rmdir.1',
+	'sleep.1',
 	'true.1',
 	'tty.1',
 	'uname.1',

@@ 0,0 1,21 @@
+sleep(1) "ctools"
+
+# NAME
+
+sleep - suspend execution for an interval
+
+# SYNOPSIS
+
+*sleep* time
+
+# DESCRIPTION
+
+The sleep utility suspends execution for at least the integral
+number of seconds specified by the time operand.
+
+# DISCLAIMER
+
+This command is part of ctools and is compatible with POSIX-1.2017, and may
+optionally support XSI extensions. This man page is not intended to be a
+complete reference, and where it disagrees with the specification, the
+specification takes precedence.

@@ 28,6 28,7 @@ oneshots = [
 	'rmdir',
 	'true',
 	'tty',
+	'sleep',
 	'uname',
 ]
 

@@ 0,0 1,39 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: sleep time\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+	unsigned int secs;
+	const char *nptr;
+	char *endptr = NULL;
+	
+	if (getopt(argc, argv, "") != -1 || optind != argc - 1) {
+		usage();
+		return 1;
+	}
+
+	errno = 0;
+	nptr = argv[1];
+	secs = strtol(nptr, &endptr, 10);
+
+	if (nptr == endptr || (errno == 0 && *endptr != 0)){
+		fprintf(stderr, "error: invalid number\n");
+		return 1;
+	} else if (errno != 0) {
+		perror("strtol");
+		return 1;
+	}
+
+	sleep(secs);
+
+	return 0;
+}

@@ 16,6 16,7 @@ test_files = [
 	'logname',
 	'nice',
 	'rmdir',
+	'sleep',
 	'true',
 	'tty',
 	'uname',

@@ 0,0 1,18 @@
+#!/bin/sh
+tool="true"
+. "$HARNESS"
+
+should_return_zero() {
+	sleep 1
+}
+
+should_return_error() {
+	if ! sleep hans; then
+		return 0
+	fi
+	return 1
+}
+
+runtests \
+	should_return_zero \
+	should_return_error