67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/*
|
|
* Copyright (c) 1999-2003 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This software may be freely redistributed under the terms of the GNU
|
|
* public license.
|
|
*
|
|
* 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., 675 Mass Ave, Cambridge, MA 02139, 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;
|
|
|
|
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 ret;
|
|
}
|
|
}
|