c155af5f9a
- privilege separation
- some snprintf/strlc{at,py} conversions
- support for more architectures
- signal handler fixes
- default mouse wheel support in config tools
- sunmouse protocol
797 lines
19 KiB
C
797 lines
19 KiB
C
/*
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* Copyright 1992 by Rich Murphey <Rich@Rice.edu>
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* Copyright 1993 by David Wexelblat <dwex@goblin.org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the names of Rich Murphey and David Wexelblat
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* not be used in advertising or publicity pertaining to distribution of
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* the software without specific, written prior permission. Rich Murphey and
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* David Wexelblat make no representations about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*
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* RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT BE LIABLE FOR
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* ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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/* $XConsortium: bsd_init.c /main/8 1996/10/23 13:13:05 kaleb $ */
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include "compiler.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86_OSlib.h"
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#include <sys/utsname.h>
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#include <sys/ioctl.h>
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#ifdef X_PRIVSEP
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#include "os.h"
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#include <pwd.h>
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#endif
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#include <stdlib.h>
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#include <errno.h>
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static Bool KeepTty = FALSE;
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static int devConsoleFd = -1;
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#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
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static int VTnum = -1;
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static int initialVT = -1;
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#endif
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#ifdef PCCONS_SUPPORT
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/* Stock 0.1 386bsd pccons console driver interface */
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#ifndef __OpenBSD__
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# define PCCONS_CONSOLE_DEV1 "/dev/ttyv0"
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#else
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# define PCCONS_CONSOLE_DEV1 "/dev/ttyC0"
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#endif
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#define PCCONS_CONSOLE_DEV2 "/dev/vga"
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#define PCCONS_CONSOLE_MODE O_RDWR|O_NDELAY
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#endif
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#ifdef SYSCONS_SUPPORT
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/* The FreeBSD 1.1 version syscons driver uses /dev/ttyv0 */
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#define SYSCONS_CONSOLE_DEV1 "/dev/ttyv0"
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#define SYSCONS_CONSOLE_DEV2 "/dev/vga"
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#define SYSCONS_CONSOLE_MODE O_RDWR|O_NDELAY
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#endif
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#ifdef PCVT_SUPPORT
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/* Hellmuth Michaelis' pcvt driver */
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#ifndef __OpenBSD__
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# define PCVT_CONSOLE_DEV "/dev/ttyv0"
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#else
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# define PCVT_CONSOLE_DEV "/dev/ttyC0"
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#endif
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#define PCVT_CONSOLE_MODE O_RDWR|O_NDELAY
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#endif
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#if defined(WSCONS_SUPPORT) && defined(__NetBSD__)
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/* NetBSD's new console driver */
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#define WSCONS_PCVT_COMPAT_CONSOLE_DEV "/dev/ttyE0"
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#endif
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#ifdef __GLIBC__
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#define setpgrp setpgid
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#endif
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#define CHECK_DRIVER_MSG \
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"Check your kernel's console driver configuration and /dev entries"
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static char *supported_drivers[] = {
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#ifdef PCCONS_SUPPORT
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"pccons (with X support)",
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#endif
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#ifdef SYSCONS_SUPPORT
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"syscons",
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#endif
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#ifdef PCVT_SUPPORT
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"pcvt",
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#endif
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#ifdef WSCONS_SUPPORT
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"wscons",
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#endif
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};
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/*
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* Functions to probe for the existance of a supported console driver.
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* Any function returns either a valid file descriptor (driver probed
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* succesfully), -1 (driver not found), or uses FatalError() if the
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* driver was found but proved to not support the required mode to run
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* an X server.
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*/
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typedef int (*xf86ConsOpen_t)(void);
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#ifdef PCCONS_SUPPORT
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static int xf86OpenPccons(void);
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#endif /* PCCONS_SUPPORT */
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#ifdef SYSCONS_SUPPORT
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static int xf86OpenSyscons(void);
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#endif /* SYSCONS_SUPPORT */
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#ifdef PCVT_SUPPORT
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static int xf86OpenPcvt(void);
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#endif /* PCVT_SUPPORT */
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#ifdef WSCONS_SUPPORT
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static int xf86OpenWScons(void);
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#endif
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/*
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* The sequence of the driver probes is important; start with the
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* driver that is best distinguishable, and end with the most generic
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* driver. (Otherwise, pcvt would also probe as syscons, and either
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* pcvt or syscons might succesfully probe as pccons.)
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*/
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static xf86ConsOpen_t xf86ConsTab[] = {
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#ifdef PCVT_SUPPORT
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xf86OpenPcvt,
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#endif
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#ifdef SYSCONS_SUPPORT
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xf86OpenSyscons,
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#endif
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#ifdef PCCONS_SUPPORT
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xf86OpenPccons,
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#endif
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#ifdef WSCONS_SUPPORT
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xf86OpenWScons,
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#endif
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(xf86ConsOpen_t)NULL
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};
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void
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xf86OpenConsole()
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{
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int i, fd = -1;
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xf86ConsOpen_t *driver;
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#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
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int result;
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struct utsname uts;
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vtmode_t vtmode;
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#endif
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#ifdef X_PRIVSEP
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if (xf86Info.consoleFd != -1) {
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return;
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}
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#endif
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if (serverGeneration == 1)
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{
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/* check if we are run with euid==0 */
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if (geteuid() != 0 && issetugid())
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{
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FatalError("xf86OpenConsole: Server must either be suid root"
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" or without privileges at all");
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}
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if (!KeepTty)
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{
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/*
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* detaching the controlling tty solves problems of kbd character
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* loss. This is not interesting for CO driver, because it is
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* exclusive.
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*/
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setpgrp(0, getpid());
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if ((i = open("/dev/tty",O_RDWR)) >= 0)
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{
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ioctl(i,TIOCNOTTY,(char *)0);
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close(i);
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}
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}
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/* detect which driver we are running on */
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for (driver = xf86ConsTab; *driver; driver++)
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{
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if ((fd = (*driver)()) >= 0)
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break;
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}
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/* Check that a supported console driver was found */
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if (fd < 0)
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{
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char cons_drivers[80] = {0, };
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for (i = 0; i < sizeof(supported_drivers) / sizeof(char *); i++)
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{
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if (i)
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{
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strcat(cons_drivers, ", ");
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}
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strcat(cons_drivers, supported_drivers[i]);
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}
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FatalError(
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"%s: No console driver found\n\tSupported drivers: %s\n\t%s",
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"xf86OpenConsole", cons_drivers, CHECK_DRIVER_MSG);
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}
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#if 0 /* stdin is already closed in OsInit() */
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fclose(stdin);
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#endif
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xf86Info.consoleFd = fd;
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xf86Info.screenFd = fd;
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switch (xf86Info.consType)
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{
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#ifdef PCCONS_SUPPORT
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case PCCONS:
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if (ioctl (xf86Info.consoleFd, CONSOLE_X_MODE_ON, 0) < 0)
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{
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FatalError("%s: CONSOLE_X_MODE_ON failed (%s)\n%s",
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"xf86OpenConsole", strerror(errno),
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CHECK_DRIVER_MSG);
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}
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/*
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* Hack to prevent keyboard hanging when syslogd closes
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* /dev/console
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*/
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if ((devConsoleFd = open("/dev/console", O_WRONLY,0)) < 0)
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{
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xf86Msg(X_WARNING,
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"xf86OpenConsole: couldn't open /dev/console (%s)\n",
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strerror(errno));
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}
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break;
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#endif
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#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
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case SYSCONS:
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/* as of FreeBSD 2.2.8, syscons driver does not need the #1 vt
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* switching anymore. Here we check for FreeBSD 3.1 and up.
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* Add cases for other *BSD that behave the same.
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*/
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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uname (&uts);
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i = atof(uts.release) * 100;
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if (i >= 310) goto acquire_vt;
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#endif
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/* otherwise fall through */
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case PCVT:
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/*
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* First activate the #1 VT. This is a hack to allow a server
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* to be started while another one is active. There should be
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* a better way.
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*/
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if (initialVT != 1) {
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 1) != 0)
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{
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xf86Msg(X_WARNING,
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"xf86OpenConsole: VT_ACTIVATE failed\n");
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}
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sleep(1);
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}
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acquire_vt:
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/*
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* now get the VT
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*/
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SYSCALL(result =
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ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno));
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if (result != 0)
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{
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xf86Msg(X_WARNING, "xf86OpenConsole: VT_ACTIVATE failed\n");
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}
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SYSCALL(result =
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ioctl(xf86Info.consoleFd, VT_WAITACTIVE, xf86Info.vtno));
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if (result != 0)
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{
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xf86Msg(X_WARNING, "xf86OpenConsole: VT_WAITACTIVE failed\n");
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}
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signal(SIGUSR2, xf86VTRequest);
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vtmode.mode = VT_PROCESS;
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vtmode.relsig = SIGUSR2;
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vtmode.acqsig = SIGUSR2;
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vtmode.frsig = SIGUSR2;
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if (ioctl(xf86Info.consoleFd, VT_SETMODE, &vtmode) < 0)
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{
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FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed");
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}
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#if !defined(OpenBSD) && !defined(USE_DEV_IO) && !defined(USE_I386_IOPL)
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if (ioctl(xf86Info.consoleFd, KDENABIO, 0) < 0)
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{
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FatalError("xf86OpenConsole: KDENABIO failed (%s)",
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strerror(errno));
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}
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#endif
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if (ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS) < 0)
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{
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FatalError("xf86OpenConsole: KDSETMODE KD_GRAPHICS failed");
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}
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break;
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#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
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#ifdef WSCONS_SUPPORT
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case WSCONS:
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/* Nothing to do */
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break;
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#endif
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}
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}
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else
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{
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/* serverGeneration != 1 */
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#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
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if (xf86Info.consType == SYSCONS || xf86Info.consType == PCVT)
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{
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) != 0)
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{
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xf86Msg(X_WARNING, "xf86OpenConsole: VT_ACTIVATE failed\n");
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}
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}
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#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
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}
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return;
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}
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#ifdef PCCONS_SUPPORT
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static int
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xf86OpenPccons()
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{
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int fd = -1;
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if ((fd = open(PCCONS_CONSOLE_DEV1, PCCONS_CONSOLE_MODE, 0))
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>= 0 ||
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(fd = open(PCCONS_CONSOLE_DEV2, PCCONS_CONSOLE_MODE, 0))
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>= 0)
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{
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if (ioctl(fd, CONSOLE_X_MODE_OFF, 0) < 0)
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{
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FatalError(
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"%s: CONSOLE_X_MODE_OFF failed (%s)\n%s\n%s",
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"xf86OpenPccons",
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strerror(errno),
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"Was expecting pccons driver with X support",
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CHECK_DRIVER_MSG);
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}
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xf86Info.consType = PCCONS;
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xf86Msg(X_PROBED, "Using pccons driver with X support\n");
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}
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return fd;
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}
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#endif /* PCCONS_SUPPORT */
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#ifdef SYSCONS_SUPPORT
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static int
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xf86OpenSyscons()
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{
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int fd = -1;
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vtmode_t vtmode;
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char vtname[12];
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struct stat status;
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long syscons_version;
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MessageType from;
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/* Check for syscons */
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if ((fd = open(SYSCONS_CONSOLE_DEV1, SYSCONS_CONSOLE_MODE, 0)) >= 0
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|| (fd = open(SYSCONS_CONSOLE_DEV2, SYSCONS_CONSOLE_MODE, 0)) >= 0)
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{
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if (ioctl(fd, VT_GETMODE, &vtmode) >= 0)
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{
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/* Get syscons version */
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if (ioctl(fd, CONS_GETVERS, &syscons_version) < 0)
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{
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syscons_version = 0;
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}
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xf86Info.vtno = VTnum;
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from = X_CMDLINE;
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#ifdef VT_GETACTIVE
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if (ioctl(fd, VT_GETACTIVE, &initialVT) < 0)
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initialVT = -1;
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#endif
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if (xf86Info.vtno == -1)
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{
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/*
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* For old syscons versions (<0x100), VT_OPENQRY returns
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* the current VT rather than the next free VT. In this
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* case, the server gets started on the current VT instead
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* of the next free VT.
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*/
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#if 0
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/* check for the fixed VT_OPENQRY */
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if (syscons_version >= 0x100)
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{
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#endif
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if (ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0)
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{
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/* No free VTs */
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xf86Info.vtno = -1;
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}
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#if 0
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}
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#endif
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if (xf86Info.vtno == -1)
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{
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/*
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* All VTs are in use. If initialVT was found, use it.
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* Otherwise, if stdin is a VT, use that one.
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* XXX stdin is already closed, so this won't work.
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*/
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if (initialVT != -1)
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{
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xf86Info.vtno = initialVT;
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}
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else if ((fstat(0, &status) >= 0)
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&& S_ISCHR(status.st_mode)
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&& (ioctl(0, VT_GETMODE, &vtmode) >= 0))
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{
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/* stdin is a VT */
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xf86Info.vtno = minor(status.st_rdev) + 1;
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}
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else
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{
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if (syscons_version >= 0x100)
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{
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FatalError("%s: Cannot find a free VT",
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"xf86OpenSyscons");
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}
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/* Should no longer reach here */
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FatalError("%s: %s %s\n\t%s %s",
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"xf86OpenSyscons",
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"syscons versions prior to 1.0 require",
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"either the",
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"server's stdin be a VT",
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"or the use of the vtxx server option");
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}
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}
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from = X_PROBED;
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}
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close(fd);
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#ifndef __OpenBSD__
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sprintf(vtname, "/dev/ttyv%01x", xf86Info.vtno - 1);
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#else
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sprintf(vtname, "/dev/ttyC%01x", xf86Info.vtno - 1);
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#endif
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if ((fd = open(vtname, SYSCONS_CONSOLE_MODE, 0)) < 0)
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{
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FatalError("xf86OpenSyscons: Cannot open %s (%s)",
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vtname, strerror(errno));
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}
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if (ioctl(fd, VT_GETMODE, &vtmode) < 0)
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{
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FatalError("xf86OpenSyscons: VT_GETMODE failed");
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}
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xf86Info.consType = SYSCONS;
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xf86Msg(X_PROBED, "Using syscons driver with X support");
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if (syscons_version >= 0x100)
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{
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xf86ErrorF(" (version %ld.%ld)\n", syscons_version >> 8,
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syscons_version & 0xFF);
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}
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else
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{
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xf86ErrorF(" (version 0.x)\n");
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}
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xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
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}
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else
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{
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/* VT_GETMODE failed, probably not syscons */
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close(fd);
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fd = -1;
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}
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}
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return fd;
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}
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#endif /* SYSCONS_SUPPORT */
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#ifdef PCVT_SUPPORT
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static int
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xf86OpenPcvt()
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{
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/* This looks much like syscons, since pcvt is API compatible */
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int fd = -1;
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vtmode_t vtmode;
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char vtname[12], *vtprefix;
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struct stat status;
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struct pcvtid pcvt_version;
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#ifndef __OpenBSD__
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vtprefix = "/dev/ttyv";
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#else
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vtprefix = "/dev/ttyC";
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#endif
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if (VTnum != -1) {
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snprintf(vtname, sizeof(vtname), "%s%x", vtprefix, VTnum - 1);
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fd = open(vtname, PCVT_CONSOLE_MODE, 0);
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} else {
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fd = open(PCVT_CONSOLE_DEV, PCVT_CONSOLE_MODE, 0);
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}
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|
#ifdef WSCONS_PCVT_COMPAT_CONSOLE_DEV
|
|
if (fd < 0)
|
|
{
|
|
fd = open(WSCONS_PCVT_COMPAT_CONSOLE_DEV, PCVT_CONSOLE_MODE, 0);
|
|
vtprefix = "/dev/ttyE";
|
|
}
|
|
#endif
|
|
if (fd >= 0)
|
|
{
|
|
if (ioctl(fd, VGAPCVTID, &pcvt_version) >= 0)
|
|
{
|
|
if(ioctl(fd, VT_GETMODE, &vtmode) < 0)
|
|
{
|
|
FatalError("%s: VT_GETMODE failed\n%s%s\n%s",
|
|
"xf86OpenPcvt",
|
|
"Found pcvt driver but X11 seems to be",
|
|
" not supported.", CHECK_DRIVER_MSG);
|
|
}
|
|
|
|
xf86Info.vtno = VTnum;
|
|
|
|
if (ioctl(fd, VT_GETACTIVE, &initialVT) < 0)
|
|
initialVT = -1;
|
|
|
|
if (xf86Info.vtno == -1)
|
|
{
|
|
if (ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0)
|
|
{
|
|
/* No free VTs */
|
|
xf86Info.vtno = -1;
|
|
}
|
|
|
|
if (xf86Info.vtno == -1)
|
|
{
|
|
/*
|
|
* All VTs are in use. If initialVT was found, use it.
|
|
* Otherwise, if stdin is a VT, use that one.
|
|
* XXX stdin is already closed, so this won't work.
|
|
*/
|
|
if (initialVT != -1)
|
|
{
|
|
xf86Info.vtno = initialVT;
|
|
}
|
|
else if ((fstat(0, &status) >= 0)
|
|
&& S_ISCHR(status.st_mode)
|
|
&& (ioctl(0, VT_GETMODE, &vtmode) >= 0))
|
|
{
|
|
/* stdin is a VT */
|
|
xf86Info.vtno = minor(status.st_rdev) + 1;
|
|
}
|
|
else
|
|
{
|
|
FatalError("%s: Cannot find a free VT",
|
|
"xf86OpenPcvt");
|
|
}
|
|
}
|
|
}
|
|
|
|
close(fd);
|
|
sprintf(vtname, "%s%01x", vtprefix, xf86Info.vtno - 1);
|
|
if ((fd = open(vtname, PCVT_CONSOLE_MODE, 0)) < 0)
|
|
{
|
|
ErrorF("xf86OpenPcvt: Cannot open %s (%s)",
|
|
vtname, strerror(errno));
|
|
xf86Info.vtno = initialVT;
|
|
sprintf(vtname, "%s%01x", vtprefix, xf86Info.vtno - 1);
|
|
if ((fd = open(vtname, PCVT_CONSOLE_MODE, 0)) < 0) {
|
|
FatalError("xf86OpenPcvt: Cannot open %s (%s)",
|
|
vtname, strerror(errno));
|
|
}
|
|
}
|
|
if (ioctl(fd, VT_GETMODE, &vtmode) < 0)
|
|
{
|
|
FatalError("xf86OpenPcvt: VT_GETMODE failed");
|
|
}
|
|
xf86Info.consType = PCVT;
|
|
#ifdef WSCONS_SUPPORT
|
|
xf86Msg(X_PROBED,
|
|
"Using wscons driver on %s in pcvt compatibility mode "
|
|
"(version %d.%d)\n", vtname,
|
|
pcvt_version.rmajor, pcvt_version.rminor);
|
|
#else
|
|
xf86Msg(X_PROBED, "Using pcvt driver (version %d.%d)\n",
|
|
pcvt_version.rmajor, pcvt_version.rminor);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
/* Not pcvt */
|
|
close(fd);
|
|
fd = -1;
|
|
}
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
#endif /* PCVT_SUPPORT */
|
|
|
|
#ifdef WSCONS_SUPPORT
|
|
|
|
static int
|
|
xf86OpenWScons()
|
|
{
|
|
int fd = -1;
|
|
int mode = WSDISPLAYIO_MODE_MAPPED;
|
|
int i;
|
|
char ttyname[16];
|
|
|
|
/* XXX Is this ok? */
|
|
for (i = 0; i < 8; i++) {
|
|
#if defined(__NetBSD__)
|
|
sprintf(ttyname, "/dev/ttyE%d", i);
|
|
#elif defined(__OpenBSD__)
|
|
sprintf(ttyname, "/dev/ttyC%x", i);
|
|
#endif
|
|
if ((fd = open(ttyname, 2)) != -1)
|
|
break;
|
|
}
|
|
if (fd != -1) {
|
|
if (ioctl(fd, WSDISPLAYIO_SMODE, &mode) < 0) {
|
|
FatalError("%s: WSDISPLAYIO_MODE_MAPPED failed (%s)\n%s",
|
|
"xf86OpenConsole", strerror(errno),
|
|
CHECK_DRIVER_MSG);
|
|
}
|
|
xf86Info.consType = WSCONS;
|
|
xf86Msg(X_PROBED, "Using wscons driver\n");
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
#endif /* WSCONS_SUPPORT */
|
|
|
|
void
|
|
xf86CloseConsole()
|
|
{
|
|
#if defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT)
|
|
struct vt_mode VT;
|
|
#endif
|
|
|
|
switch (xf86Info.consType)
|
|
{
|
|
#ifdef PCCONS_SUPPORT
|
|
case PCCONS:
|
|
ioctl (xf86Info.consoleFd, CONSOLE_X_MODE_OFF, 0);
|
|
break;
|
|
#endif /* PCCONS_SUPPORT */
|
|
#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
|
|
case SYSCONS:
|
|
case PCVT:
|
|
ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT); /* Back to text mode */
|
|
if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1)
|
|
{
|
|
VT.mode = VT_AUTO;
|
|
ioctl(xf86Info.consoleFd, VT_SETMODE, &VT); /* dflt vt handling */
|
|
}
|
|
#if !defined(OpenBSD) && !defined(USE_DEV_IO) && !defined(USE_I386_IOPL)
|
|
if (ioctl(xf86Info.consoleFd, KDDISABIO, 0) < 0)
|
|
{
|
|
xf86FatalError("xf86CloseConsole: KDDISABIO failed (%s)",
|
|
strerror(errno));
|
|
}
|
|
#endif
|
|
if (initialVT != -1)
|
|
ioctl(xf86Info.consoleFd, VT_ACTIVATE, initialVT);
|
|
break;
|
|
#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
|
|
#ifdef WSCONS_SUPPORT
|
|
case WSCONS:
|
|
{
|
|
int mode = WSDISPLAYIO_MODE_EMUL;
|
|
ioctl(xf86Info.screenFd, WSDISPLAYIO_SMODE, &mode);
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (xf86Info.screenFd != xf86Info.consoleFd)
|
|
{
|
|
close(xf86Info.screenFd);
|
|
close(xf86Info.consoleFd);
|
|
if ((xf86Info.consoleFd = open("/dev/console",O_RDONLY,0)) <0)
|
|
{
|
|
xf86FatalError("xf86CloseConsole: Cannot open /dev/console (%s)",
|
|
strerror(errno));
|
|
}
|
|
}
|
|
close(xf86Info.consoleFd);
|
|
#ifdef X_PRIVSEP
|
|
xf86Info.consoleFd = -1;
|
|
#endif
|
|
if (devConsoleFd >= 0)
|
|
close(devConsoleFd);
|
|
return;
|
|
}
|
|
|
|
int
|
|
xf86ProcessArgument(int argc, char *argv[], int i)
|
|
{
|
|
/*
|
|
* Keep server from detaching from controlling tty. This is useful
|
|
* when debugging (so the server can receive keyboard signals.
|
|
*/
|
|
if (!strcmp(argv[i], "-keeptty"))
|
|
{
|
|
KeepTty = TRUE;
|
|
return(1);
|
|
}
|
|
#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
|
|
if ((argv[i][0] == 'v') && (argv[i][1] == 't'))
|
|
{
|
|
if (sscanf(argv[i], "vt%2d", &VTnum) == 0 ||
|
|
VTnum < 1 || VTnum > 12)
|
|
{
|
|
UseMsg();
|
|
VTnum = -1;
|
|
return(0);
|
|
}
|
|
return(1);
|
|
}
|
|
#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
|
|
return(0);
|
|
}
|
|
|
|
void
|
|
xf86UseMsg()
|
|
{
|
|
#if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
|
|
ErrorF("vtXX use the specified VT number (1-12)\n");
|
|
#endif /* SYSCONS_SUPPORT || PCVT_SUPPORT */
|
|
ErrorF("-keeptty ");
|
|
ErrorF("don't detach controlling tty (for debugging only)\n");
|
|
return;
|
|
}
|
|
|
|
#ifdef X_PRIVSEP
|
|
/*
|
|
* Revoke privileges after init.
|
|
* If the X server is started as root (xdm case), then switch to _x11
|
|
* if it exists.
|
|
* Otherwise use the real uid.
|
|
*/
|
|
void
|
|
xf86DropPriv(char *disp)
|
|
{
|
|
struct passwd *pw;
|
|
|
|
/* revoke privileges */
|
|
if (getuid() == 0) {
|
|
/* Running as root */
|
|
pw = getpwnam("_x11");
|
|
if (!pw)
|
|
return;
|
|
/* give away lock file to unpriviledged user */
|
|
if (ChownLock(pw->pw_uid, pw->pw_gid) == -1) {
|
|
FatalError("Chown Lock");
|
|
}
|
|
|
|
/* Start privileged child */
|
|
if (priv_init(pw->pw_uid, pw->pw_gid) == -1) {
|
|
FatalError("priv_init");
|
|
}
|
|
} else {
|
|
/* Normal user */
|
|
if (priv_init(getuid(), getgid()) == -1) {
|
|
FatalError("priv_init");
|
|
}
|
|
}
|
|
}
|
|
#endif
|