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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
off.c - Switch the Mustek 600 II N off
This utility accesses the I/O-ports directly and must therefore be
run with euid root, or must at least have access to /dev/port.
Compile with:
gcc -DHAVE_SYS_IO_H -O2 -Wall -s -o off off.c
The -O2 optimization is needed to allow inline functions !
Copyright (C) 1997-1999 Andreas Czechanowski, DL4SDC
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
andreas.czechanowski@ins.uni-stuttgart.de
*/
#include "../include/sane/config.h"
#include "../include/sane/sanei.h"
#include "../include/sane/sanei_directio.h"
#define MUSTEK_CONF STRINGIFY(PATH_SANE_CONFIG_DIR) "/mustek.conf"
#define PORT_DEV "/dev/port"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
char *Mustek_Conf = MUSTEK_CONF;
int allowed_ports[] =
{
0x26b, 0x26c,
0x2ab, 0x2ac,
0x2eb, 0x2ec,
0x22b, 0x22c,
0x32b, 0x32c,
0x36b, 0x36c,
0x3ab, 0x3ac,
0x3eb, 0x3ec,
-1
};
void
usage (void)
{
fprintf (stderr, "Usage: off [port]\n"
" switches the Mustek 600 II N off that is connected to\n"
" base address <port>. If address is not given, reads it\n"
" from SANE config file <%s>.\n", Mustek_Conf);
}
void
noaccess (int portaddr)
{
fprintf (stderr, "Access to port 0x%03x not allowed !\n", portaddr);
}
int
check_port (int portaddr)
{
int i, j;
for (i = 0; (j = allowed_ports[i]) != -1; i++)
{
if (j == portaddr)
return j;
}
return -1;
}
int
str2int (char *ch)
{
int i;
i = strtol (ch, NULL, 0);
return i;
}
int
main (int argc, char **argv)
{
char *cp;
int portaddr = 0;
FILE *fp;
int pfd;
/* get config file name from environment if variable is set */
if (NULL != (cp = getenv ("MUSTEK_CONF")))
{
Mustek_Conf = cp;
}
/* if port is explicitly given, try this one */
if (argc > 1)
{
portaddr = str2int (argv[1]);
}
/* else try to look it up from SANE's mustek.conf file */
else if (NULL != (fp = fopen (MUSTEK_CONF, "r")))
{
char line[256];
while (NULL != fgets (line, 255, fp))
{
if ('#' == *line)
continue;
if (0 != (portaddr = str2int (line)))
break;
}
fclose (fp);
}
else
{
fprintf (stderr, "Mustek config file <%s> not found\n", Mustek_Conf);
usage ();
exit (1);
}
if (check_port (portaddr) < 0 || check_port (portaddr + 1) < 0)
{
fprintf (stderr, "invalid port address specified !\n");
usage ();
exit (1);
}
/* we need the control port, not the data port, so... */
portaddr++;
fprintf (stderr, "using control port address 0x%03x\n", portaddr);
/* try to get I/O permission from the kernel */
if (sanei_ioperm (portaddr, 1, 1) == 0)
{
sanei_outb (portaddr, 0x00);
}
/* else try to open /dev/port to access the I/O port */
else if ((pfd = open (PORT_DEV, O_RDWR, 0666)) >= 0)
{
char offcmd[] =
{0x00};
if ((lseek (pfd, portaddr, SEEK_SET) != portaddr)
|| (write (pfd, offcmd, 1) != 1))
{
perror ("error handling /dev/port");
exit (1);
}
close (pfd);
}
else
{
fprintf (stderr, "Could not get port access:\n"
"Neither via ioperm(), nor via /dev/port.\n"
"This program must be run setuid root,\n"
"or the user must have access to /dev/port.\n");
exit (1);
}
printf ("successfully sent OFF-command to control port at 0x%03x.\n",
portaddr);
exit (0);
}
|
