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/*
* Copyright (c) 1999-2003 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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;
}
}
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