console.c

美化linux的kernel启动画面的程序

/*
 *	fbmngplay - framebuffer console MNG player.
 *	(c) 2001-2002 by Stefan Reinauer, <[e-mail]>
 *   
 *	This program is based on mngplay, part of libmng, written and (C) by
 *	Ralph Giles <[e-mail]>
 *
 *	This program my be redistributed under the terms of the
 *	GNU General Public Licence, version 2, or at your preference,
 *	any later version.
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <linux/kd.h>
#include <linux/vt.h>
#include <sys/ioctl.h>

#include "console.h"

int start_console = 0;
int fd;

int current_console(void)
{
	int result = 0;
	char twelve = 12;

	result = ioctl(fd, TIOCLINUX, &twelve);

	return result;
}

void init_consoles(void)
{
	fd = open("/dev/tty0", O_RDWR | O_NDELAY);
	if (fd < 0) {
		fprintf(stderr, "Could not open virtual terminal.\n");
		exit(1);
	}
}