1 /* $NetBSD: t_ttypty.c,v 1.2 2017/01/13 21:30:41 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Luke Mewburn and Jaromir Dolecek.
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/cdefs.h>
33 __COPYRIGHT("@(#) Copyright (c) 2008\
34 The NetBSD Foundation, inc. All rights reserved.");
35 __RCSID("$NetBSD: t_ttypty.c,v 1.2 2017/01/13 21:30:41 christos Exp $");
36
37 #include <sys/event.h>
38 #include <sys/wait.h>
39
40 #include <poll.h>
41 #include <stdio.h>
42 #include <termios.h>
43 #include <unistd.h>
44 #include <util.h>
45
46 #include <atf-c.h>
47
48 #include "h_macros.h"
49
50 static void
h_check(bool check_master)51 h_check(bool check_master)
52 {
53 char slavetty[1024];
54 char buffer[128];
55 struct kevent event[1];
56 pid_t child;
57 int amaster, aslave, acurrent;
58 int kq, n, status;
59 #if 0
60 int fl;
61 #endif
62 struct pollfd pfd;
63 struct termios tio;
64
65 RL(openpty(&amaster, &aslave, slavetty, NULL, NULL));
66
67 (void)printf("tty: openpty master %d slave %d tty '%s'\n",
68 amaster, aslave, slavetty);
69 acurrent = check_master ? amaster : aslave;
70
71 RL(child = fork());
72 if (child == 0) {
73 sleep(1);
74
75 (void)printf("tty: child writing 'f00\\n'\n");
76 (void)write(check_master ? aslave : amaster, "f00\n", 4);
77
78 _exit(0);
79 }
80
81 /* switch ONLCR off, to not get confused by newline translation */
82 RL(tcgetattr(acurrent, &tio));
83 tio.c_oflag &= ~ONLCR;
84 RL(tcsetattr(acurrent, TCSADRAIN, &tio));
85
86 pfd.fd = acurrent;
87 pfd.events = POLLIN;
88 (void)printf("tty: polling ...\n");
89 RL(poll(&pfd, 1, INFTIM));
90 (void)printf("tty: returned from poll - %d\n", pfd.revents);
91
92 #if 0
93 fl = 1;
94 if (ioctl(acurrent, TIOCPKT, &fl) < 0)
95 err(1, "ioctl");
96 #endif
97
98 RL(kq = kqueue());
99
100 EV_SET(&event[0], acurrent, EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0);
101 RL(kevent(kq, event, 1, NULL, 0, NULL));
102
103 RL(n = kevent(kq, NULL, 0, event, 1, NULL));
104
105 (void)printf("kevent num %d filt %d flags: %#x, fflags: %#x, "
106 #ifdef __FreeBSD__
107 "data: %" PRIdPTR "\n", n, event[0].filter, event[0].flags,
108 #else
109 "data: %" PRId64 "\n", n, event[0].filter, event[0].flags,
110 #endif
111 event[0].fflags, event[0].data);
112
113 ATF_REQUIRE_EQ(event[0].filter, EVFILT_READ);
114
115 RL(n = read(acurrent, buffer, 128));
116 (void)printf("tty: read '%.*s' (n=%d)\n", n, buffer, n);
117
118 (void)waitpid(child, &status, 0);
119 (void)printf("tty: successful end\n");
120 }
121
122 ATF_TC(master);
ATF_TC_HEAD(master,tc)123 ATF_TC_HEAD(master, tc)
124 {
125 atf_tc_set_md_var(tc, "descr", "Checks EVFILT_READ for master tty");
126 }
ATF_TC_BODY(master,tc)127 ATF_TC_BODY(master, tc)
128 {
129 h_check(true);
130 }
131
132 ATF_TC(slave);
ATF_TC_HEAD(slave,tc)133 ATF_TC_HEAD(slave, tc)
134 {
135 atf_tc_set_md_var(tc, "descr", "Checks EVFILT_READ for slave tty");
136 }
ATF_TC_BODY(slave,tc)137 ATF_TC_BODY(slave, tc)
138 {
139 h_check(false);
140 }
141
ATF_TP_ADD_TCS(tp)142 ATF_TP_ADD_TCS(tp)
143 {
144 ATF_TP_ADD_TC(tp, master);
145 ATF_TP_ADD_TC(tp, slave);
146
147 return atf_no_error();
148 }
149