1/*-
2 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
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38
39static tf_bell_t stress_bell;
40static tf_cursor_t stress_cursor;
41static tf_putchar_t stress_putchar;
42static tf_fill_t stress_fill;
43static tf_copy_t stress_copy;
44static tf_param_t stress_param;
45static tf_respond_t stress_respond;
46
47static teken_funcs_t tf = {
48 .tf_bell = stress_bell,
49 .tf_cursor = stress_cursor,
50 .tf_putchar = stress_putchar,
51 .tf_fill = stress_fill,
52 .tf_copy = stress_copy,
53 .tf_param = stress_param,
54 .tf_respond = stress_respond,
55};
56
57static void
58stress_bell(void *s __unused)
59{
60}
61
62static void
63stress_cursor(void *s __unused, const teken_pos_t *p __unused)
64{
65}
66
67static void
68stress_putchar(void *s __unused, const teken_pos_t *p __unused,
69 teken_char_t c __unused, const teken_attr_t *a __unused)
70{
71}
72
73static void
74stress_fill(void *s __unused, const teken_rect_t *r __unused,
75 teken_char_t c __unused, const teken_attr_t *a __unused)
76{
77}
78
79static void
80stress_copy(void *s __unused, const teken_rect_t *r __unused,
81 const teken_pos_t *p __unused)
82{
83}
84
85static void
86stress_param(void *s __unused, int cmd __unused, unsigned int value __unused)
87{
88}
89
90static void
91stress_respond(void *s __unused, const void *buf __unused, size_t len __unused)
92{
93}
94
95static const char replacement[] =
96 { 0x1b, '[', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ';' };
97
98int
99main(int argc __unused, char *argv[] __unused)
100{
101 teken_t t;
102 int rnd;
103 unsigned int i, iteration = 0;
104 unsigned char buf[2048];
105
106 rnd = open("/dev/urandom", O_RDONLY);
107 if (rnd < 0) {
108 perror("/dev/urandom");
109 exit(1);
110 }
111
112 teken_init(&t, &tf, NULL);
113
114 for (;;) {
115 if (read(rnd, buf, sizeof buf) != sizeof buf) {
116 perror("read");
117 exit(1);
118 }
119
120 for (i = 0; i < sizeof buf; i++) {
121 if (buf[i] >= 0x80)
122 buf[i] =
123 replacement[buf[i] % sizeof replacement];
124 }
125
126 teken_input(&t, buf, sizeof buf);
127
128 iteration++;
129 if ((iteration % 10000) == 0)
130 printf("Processed %u frames\n", iteration);
131 }
132}
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