1/* $NetBSD: t_pr.c,v 1.7 2011/04/26 20:42:01 martin Exp $ */
2
3/*-
4 * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Antti Kantee <pooka@NetBSD.org> and Martin Husemann <martin@NetBSD.org>.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/types.h>
33#include <sys/ioctl.h>
34#include <sys/tty.h>
35
36#include <atf-c.h>
37#include <fcntl.h>
38
39#include <stdio.h>
40#include <string.h>
41#include <errno.h>
42#include <rump/rump.h>
43#include <rump/rump_syscalls.h>
44
45static int
46sendsome(int from, int to)
47{
48	size_t i;
49	ssize_t cnt;
50	static const char msg[] = "hello world\n";
51	char buf[sizeof(msg)+10];
52
53	memset(buf, 0, sizeof(buf));
54	rump_sys_write(from, msg, strlen(msg));
55	cnt = rump_sys_read(to, buf, sizeof(buf));
56	if (cnt < (ssize_t)strlen(msg)) {
57		printf("short message read: %zd chars: \"%s\"\n", cnt, buf);
58		return 1;
59	}
60	for (i = 0; i < sizeof(buf); i++) {
61		if (buf[i] == '\r' || buf[i] == '\n') {
62			buf[i] = '\n';
63			buf[i+1] = '\0';
64			break;
65		}
66	}
67
68	return strcmp(buf, msg) != 0;
69}
70
71static int
72exercise_ptytty(int master, int slave)
73{
74	int error, flags;
75
76	/*
77	 * send a few bytes from master to slave and read them back
78	 */
79	error = sendsome(master, slave);
80	if (error)
81		return error;
82
83	flags = FREAD|FWRITE;
84	rump_sys_ioctl(master, TIOCFLUSH, &flags);
85
86	/*
87	 * and the same in the other direction
88	 */
89	error = sendsome(slave, master);
90	if (error)
91		return error;
92
93	flags = FREAD|FWRITE;
94	rump_sys_ioctl(master, TIOCFLUSH, &flags);
95	return 0;
96}
97
98ATF_TC(client_first);
99ATF_TC_HEAD(client_first, tc)
100{
101
102	atf_tc_set_md_var(tc, "descr",
103	    "test basic tty/pty operation when opening client side first");
104}
105
106ATF_TC_BODY(client_first, tc)
107{
108	int master, slave, error, v;
109
110	rump_init();
111	slave =  rump_sys_open("/dev/ttyp1", O_RDWR|O_NONBLOCK);
112	ATF_CHECK(slave != -1);
113
114	master = rump_sys_open("/dev/ptyp1", O_RDWR);
115	ATF_CHECK(master != -1);
116
117	v = 0;
118	rump_sys_ioctl(slave, FIOASYNC, &v);
119	error = exercise_ptytty(master, slave);
120	ATF_CHECK(error == 0);
121
122	rump_sys_close(master);
123	rump_sys_close(slave);
124}
125
126ATF_TC(master_first);
127ATF_TC_HEAD(master_first, tc)
128{
129
130	atf_tc_set_md_var(tc, "descr",
131	    "test basic tty/pty operation when opening master side first");
132}
133
134ATF_TC_BODY(master_first, tc)
135{
136	int master, slave, error;
137
138	rump_init();
139	master = rump_sys_open("/dev/ptyp1", O_RDWR);
140	ATF_CHECK(master != -1);
141
142	slave =  rump_sys_open("/dev/ttyp1", O_RDWR);
143	ATF_CHECK(slave != -1);
144
145	error = exercise_ptytty(master, slave);
146	ATF_CHECK(error == 0);
147
148	rump_sys_close(master);
149	rump_sys_close(slave);
150}
151
152ATF_TC(ptyioctl);
153ATF_TC_HEAD(ptyioctl, tc)
154{
155
156	atf_tc_set_md_var(tc, "descr",
157	    "ioctl on pty with client side not open");
158}
159
160ATF_TC_BODY(ptyioctl, tc)
161{
162	struct termios tio;
163	int fd;
164
165	rump_init();
166	fd = rump_sys_open("/dev/ptyp1", O_RDWR);
167	ATF_CHECK(fd != -1);
168
169	/*
170	 * This used to die with null deref under ptcwakeup()
171	 * atf_tc_expect_signal(-1, "PR kern/40688");
172	 */
173	rump_sys_ioctl(fd, TIOCGETA, &tio);
174
175	rump_sys_close(fd);
176}
177
178ATF_TP_ADD_TCS(tp)
179{
180
181	ATF_TP_ADD_TC(tp, ptyioctl);
182	ATF_TP_ADD_TC(tp, client_first);
183	ATF_TP_ADD_TC(tp, master_first);
184
185	return atf_no_error();
186}
187