1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* Copyright (c) 2025 Ian Marco Moffett and L5 engineers
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/spawn.h>
#include <sys/iotap.h>
#include <stdio.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
/* XXX: Hardcoded for now, will change */
#define PROMPT "[sv@l5]: "
/*
* Read input from an input device
*
* @buf: Buffer to fill with input
* @maxlen: Max length of buffer
*/
static void
read_input(char *buf, size_t maxlen)
{
ssize_t retval;
size_t i = 0;
char c = '\0';
struct iotap_msg msg = {
.opcode = IOTAP_OPC_READ,
.buf = &c,
.len = 1
};
if (buf == NULL) {
return;
}
/*
* Read all the input until we hit a '\n'
*/
do {
retval = iotap_mux("input.igkbd", &msg);
if (retval < 0) {
continue;
}
if (!isascii(c)) {
continue;
}
if (c != '\n' && i < maxlen) {
buf[i++] = c;
write(STDOUT_FILENO, &c, 1);
}
} while (c != '\n');
}
int
main(void)
{
char buf[128];
ssize_t retval;
for (;;) {
write(STDOUT_FILENO, PROMPT, sizeof(PROMPT) - 1);
read_input(buf, sizeof(buf));
write(STDOUT_FILENO, "\n", 1);
/* XXX: For initial demonstration */
if (strcmp(buf, "hello") == 0) {
puts("meow!!");
} else {
puts("mrrp?");
}
buf[0] = '\0';
memset(buf, 0, sizeof(buf));
}
return 0;
}
|
