1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2002
4 * Copyright (c) 2020 Petr Vorel <pvorel@suse.cz>
5 * Copyright (C) 2024 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
6 */
7
8 /*\
9 * [Description]
10 *
11 * Verify that it's possible to open a pseudo-terminal via /dev/ptmx, obtain a
12 * slave device and set/get window size.
13 */
14
15 #define _GNU_SOURCE
16
17 #include "common.h"
18
19 static int masterfd = -1;
20
run(void)21 static void run(void)
22 {
23 int slavefd;
24 struct winsize wsz;
25 struct winsize wsz1 = { 24, 80, 5, 10 };
26 struct winsize wsz2 = { 60, 100, 11, 777 };
27
28 slavefd = open_slave(masterfd);
29
30 TST_EXP_PASS(ioctl(masterfd, TIOCSWINSZ, &wsz1));
31 TST_EXP_PASS(ioctl(slavefd, TIOCGWINSZ, &wsz));
32
33 TST_EXP_EQ_LI(wsz.ws_row, wsz1.ws_row);
34 TST_EXP_EQ_LI(wsz.ws_col, wsz1.ws_col);
35 TST_EXP_EQ_LI(wsz.ws_xpixel, wsz1.ws_xpixel);
36 TST_EXP_EQ_LI(wsz.ws_ypixel, wsz1.ws_ypixel);
37
38 TST_EXP_PASS(ioctl(masterfd, TIOCGWINSZ, &wsz));
39
40 TST_EXP_EQ_LI(wsz.ws_row, wsz1.ws_row);
41 TST_EXP_EQ_LI(wsz.ws_col, wsz1.ws_col);
42 TST_EXP_EQ_LI(wsz.ws_xpixel, wsz1.ws_xpixel);
43 TST_EXP_EQ_LI(wsz.ws_ypixel, wsz1.ws_ypixel);
44
45 TST_EXP_PASS(ioctl(slavefd, TIOCSWINSZ, &wsz2));
46 TST_EXP_PASS(ioctl(slavefd, TIOCGWINSZ, &wsz));
47
48 TST_EXP_EQ_LI(wsz.ws_row, wsz2.ws_row);
49 TST_EXP_EQ_LI(wsz.ws_col, wsz2.ws_col);
50 TST_EXP_EQ_LI(wsz.ws_xpixel, wsz2.ws_xpixel);
51 TST_EXP_EQ_LI(wsz.ws_ypixel, wsz2.ws_ypixel);
52
53 SAFE_CLOSE(slavefd);
54 }
55
setup(void)56 static void setup(void)
57 {
58 masterfd = open_master();
59 }
60
cleanup(void)61 static void cleanup(void)
62 {
63 if (masterfd != -1)
64 SAFE_CLOSE(masterfd);
65 }
66
67 static struct tst_test test = {
68 .test_all = run,
69 .setup = setup,
70 .cleanup = cleanup,
71 };
72