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
|
/*
* Copyright (c) 1999-2009 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* as published by the Free Software Foundation.
*
* 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, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/sysmacros.h>
int main(int argc, char **argv)
{
unsigned char twelve = 12;
char *type;
int maj, min, ret = 0, fg = -1;
struct stat sb;
fprintf(stderr, "warning: consoletype is now deprecated, and will be removed in the near future!\n"
"warning: use tty (1) instead! More info: 'man 1 tty'\n");
fstat(0, &sb);
maj = major(sb.st_rdev);
min = minor(sb.st_rdev);
if (maj != 3 && (maj < 136 || maj > 143)) {
if ((fg = ioctl (0, TIOCLINUX, &twelve)) < 0) {
type = "serial";
ret = 1;
} else {
#ifdef __powerpc__
int fd;
char buf[65536];
fd = open("/proc/tty/drivers",O_RDONLY);
read(fd, buf, 65535);
if (strstr(buf,"vioconsole /dev/tty")) {
type = "vio";
ret = 3;
} else {
type = "vt";
ret = 0;
}
#else
type = "vt";
ret = 0;
#endif
}
} else {
type = "pty";
ret = 2;
}
if (argc > 1 && !strcmp(argv[1],"fg")) {
if (fg < 0 || fg != (min-1))
return 1;
return 0;
} else {
printf("%s\n",type);
return (argc > 1 && !strcmp(argv[1],"stdout")) ? 0 : ret;
}
}
|
