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/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/dgux/dgux_init.c,v 1.1 1998/12/13 07:37:46 dawes Exp $ */
/*
* INTEL DG/UX RELEASE 4.20 MU03
* Copyright 1997 Takis Psarogiannakopoulos Cambridge,UK
* <takis@dpmms.cam.ac.uk>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation.
* XCONSORTIUM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FITNESS, IN NO EVENT SHALL XCONSORTIUM BE LIABLE FOR
* ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include <X11/Xmd.h>
#include "input.h"
#include "scrnintstr.h"
#include "compiler.h"
#include "xf86.h"
#include "xf86Procs.h"
#include "xf86_OSlib.h"
static Bool KeepTty = FALSE;
static Bool Protect0 = FALSE;
static int VTnum = -1;
extern void xf86VTRequest(
int
);
void xf86OpenConsole()
{
int i;
int fd;
char vtname[14];
if (serverGeneration == 1)
{
/* check if we're run with euid==0 */
if (geteuid() != 0)
{
FatalError("xf86OpenConsole: Server must be suid root\n");
}
if (Protect0)
{
int fd = -1;
if ((fd = open("/dev/zero", O_RDONLY, 0)) < 0)
{
ErrorF("xf86OpenConsole: cannot open /dev/zero (%s)\n",
strerror(errno));
}
else
{
if ((int)mmap(0, 0x1000, PROT_NONE,
MAP_FIXED | MAP_SHARED, fd, 0) == -1)
{
ErrorF("xf86OpenConsole: failed to protect page 0 (%s)\n",
strerror(errno));
}
close(fd);
}
}
if (VTnum != -1)
{
xf86Info.vtno = VTnum;
}
else
{
if ((fd = open("/dev/console",O_WRONLY,0)) < 0)
{
FatalError(
"xf86OpenConsole: Cannot open system tty (/dev/console), (%s)\n",
strerror(errno));
}
close(fd);
}
xf86Info.vtno=0;
ErrorF(" (Intel DG/ux: using VT number: systty%d)\n\n", xf86Info.vtno);
sprintf(vtname,"/dev/console");
xf86Config(FALSE); /* Read XF86Config */
if (!KeepTty)
{
setpgrp();
}
if ((xf86Info.consoleFd = open("/dev/console", O_RDWR|O_NDELAY, 0)) < 0)
{
FatalError("xf86OpenConsole: Cannot open %s (%s)\n",
vtname, strerror(errno));
}
if ((xf86Info.kbdFd = open("/dev/keybd", O_RDONLY|O_NDELAY, 0)) < 0)
{
FatalError("xf86OpenConsole: Cannot open keyboard (/dev/keybd), (%s)\n", strerror(errno));
}
/* change ownerships and Grab all other system consoles */
chown(vtname, getuid(), getgid());
chown("/dev/syscon", getuid(), getgid());
chown("/dev/systty", getuid(), getgid());
if (!KeepTty)
{
/*
* Detach from the controlling tty to avoid char loss
*/
if ((i = open("/dev/tty",O_RDWR)) >= 0)
{
ioctl(i, TIOCNOTTY, 0);
close(i);
}
}
}
else
{
/* serverGeneration != 1 */
if (!xf86VTSema)
sleep(5);
}
return;
}
void xf86CloseConsole()
{
close(xf86Info.kbdFd); /* Close the keyboard */
close(xf86Info.consoleFd); /* Close the system console */
return;
}
int xf86ProcessArgument(argc, argv, i)
int argc;
char *argv[];
int i;
{
if (!strcmp(argv[i], "-keeptty"))
{
KeepTty = TRUE;
return(1);
}
if (!strcmp(argv[i], "-protect0"))
{
Protect0 = TRUE;
return(1);
}
if ((argv[i][0] == 'v') && (argv[i][1] == 't'))
{
if (sscanf(argv[i], "vt%2d", &VTnum) == 0)
{
UseMsg();
VTnum = -1;
return(0);
}
return(1);
}
return(0);
}
void xf86UseMsg()
{
ErrorF("-keeptty ");
ErrorF("don't detach controlling tty (for debugging only)\n");
return;
}
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