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/* SVGATextMode -- An SVGA textmode manipulation/enhancement tool
*
* console_dev.c -- console device base name discovery
*
* Copyright (C) 2000 Ron Lee <ron@debian.org>
*
* 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "messages.h"
static char console_device_name[64] = "";
void GetConsoleDevice(void)
{
const char device_list[][10] = { "/dev/vc/", "/dev/tty", "" };
struct stat st;
char dev[64];
int i = 0;
while( device_list[i][0] != '\0' ) {
snprintf(dev, sizeof(dev), "%s0", device_list[i]);
if( !stat(dev, &st) ) {
strncpy(console_device_name, device_list[i], sizeof(console_device_name));
return;
}
++i;
}
PERROR(("Failed to determine console device name\n"));
}
const char *ConsoleDevice(const char *number)
{
static char device[64];
if( console_device_name[0] == '\0' )
GetConsoleDevice();
snprintf(device, sizeof(device), "%s%s", console_device_name, number);
return device;
}
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