392 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			392 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
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|  * Copyright 1993 by David Wexelblat <dwex@goblin.org>
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|  * Copyright 1999 by David Holland <davidh@iquest.net>
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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 copyright
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|  * notice and this permission notice appear in supporting documentation, and
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|  * that the names of the copyright holders not be used in advertising or
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|  * publicity pertaining to distribution of the software without specific,
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|  * written prior permission.  The copyright holders make no representations
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|  * about the suitability of this software for any purpose.  It is provided "as
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|  * is" without express or implied warranty.
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|  *
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|  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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|  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND IN NO
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|  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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|  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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|  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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|  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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|  * OF THIS SOFTWARE.
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|  */
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| 
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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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| 
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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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| #ifdef HAVE_SYS_KD_H
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| #include <sys/kd.h>
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| #endif
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| 
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| /*
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|  * Applications see VT number as consecutive integers starting from 1.
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|  * VT number			VT device
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|  * -------------------------------------------------------
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|  *     1             :          /dev/vt/0 (Alt + Ctrl + F1)
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|  *     2             :          /dev/vt/2 (Alt + Ctrl + F2)
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|  *     3             :          /dev/vt/3 (Alt + Ctrl + F3)
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|  *  ... ...
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|  */
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| #define	CONSOLE_VTNO	1
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| #define	SOL_CONSOLE_DEV	"/dev/console"
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| 
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| static Bool KeepTty = FALSE;
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| static Bool UseConsole = FALSE;
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| 
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| #ifdef HAS_USL_VTS
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| static int VTnum = -1;
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| static int xf86StartVT = -1;
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| static int vtEnabled = 0;
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| #endif
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| 
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| /* Device to open as xf86Info.consoleFd */
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| static char consoleDev[PATH_MAX] = "/dev/fb";
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| 
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| /* Set by -dev argument on CLI
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|    Used by hw/xfree86/common/xf86AutoConfig.c for VIS_GETIDENTIFIER */
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| _X_HIDDEN char xf86SolarisFbDev[PATH_MAX] = "/dev/fb";
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| 
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| static void
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| switch_to(int vt, const char *from)
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| {
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|     int ret;
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| 
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|     SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_ACTIVATE, vt));
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|     if (ret != 0)
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|         xf86Msg(X_WARNING, "%s: VT_ACTIVATE failed: %s\n",
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|                 from, strerror(errno));
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| 
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|     SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_WAITACTIVE, vt));
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|     if (ret != 0)
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|         xf86Msg(X_WARNING, "%s: VT_WAITACTIVE failed: %s\n",
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|                 from, strerror(errno));
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| }
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| 
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| void
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| xf86OpenConsole(void)
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| {
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|     int i;
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| 
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| #ifdef HAS_USL_VTS
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|     int fd;
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|     struct vt_mode VT;
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|     struct vt_stat vtinfo;
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|     MessageType from = X_PROBED;
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| #endif
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| 
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|     if (serverGeneration == 1) {
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|         /* Check if we're run with euid==0 */
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|         if (geteuid() != 0)
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|             FatalError("xf86OpenConsole: Server must be suid root\n");
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| 
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| #ifdef HAS_USL_VTS
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| 
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|         /*
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|          * Setup the virtual terminal manager
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|          */
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|         if ((fd = open("/dev/vt/0", O_RDWR, 0)) == -1) {
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|             xf86ErrorF("xf86OpenConsole: Cannot open /dev/vt/0 (%s)\n",
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|                        strerror(errno));
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|             vtEnabled = 0;
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|         }
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|         else {
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|             if (ioctl(fd, VT_ENABLED, &vtEnabled) < 0) {
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|                 xf86ErrorF("xf86OpenConsole: VT_ENABLED failed (%s)\n",
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|                            strerror(errno));
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|                 vtEnabled = 0;
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|             }
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|         }
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| #endif                          /*  HAS_USL_VTS */
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| 
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|         if (UseConsole) {
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|             strlcpy(consoleDev, SOL_CONSOLE_DEV, sizeof(consoleDev));
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| 
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| #ifdef HAS_USL_VTS
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|             xf86Info.vtno = CONSOLE_VTNO;
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| 
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|             if (vtEnabled == 0) {
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|                 xf86StartVT = 0;
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|             }
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|             else {
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|                 if (ioctl(fd, VT_GETSTATE, &vtinfo) < 0)
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|                     FatalError
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|                         ("xf86OpenConsole: Cannot determine current VT\n");
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|                 xf86StartVT = vtinfo.v_active;
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|             }
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| #endif                          /*  HAS_USL_VTS */
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|             goto OPENCONSOLE;
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|         }
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| 
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| #ifdef HAS_USL_VTS
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|         if (vtEnabled == 0) {
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|             /* VT not enabled - kernel too old or Sparc platforms
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|                without visual_io support */
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|             xf86Msg(from, "VT infrastructure is not available\n");
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| 
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|             xf86StartVT = 0;
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|             xf86Info.vtno = 0;
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|             strlcpy(consoleDev, xf86SolarisFbDev, sizeof(consoleDev));
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|             goto OPENCONSOLE;
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|         }
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| 
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|         if (ioctl(fd, VT_GETSTATE, &vtinfo) < 0)
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|             FatalError("xf86OpenConsole: Cannot determine current VT\n");
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| 
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|         xf86StartVT = vtinfo.v_active;
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| 
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|         if (VTnum != -1) {
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|             xf86Info.vtno = VTnum;
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|             from = X_CMDLINE;
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|         }
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|         else if (xf86Info.ShareVTs) {
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|             xf86Info.vtno = vtinfo.v_active;
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|             from = X_CMDLINE;
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|         }
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|         else {
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|             if ((ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0) ||
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|                 (xf86Info.vtno == -1)) {
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|                 FatalError("xf86OpenConsole: Cannot find a free VT\n");
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|             }
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|         }
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| 
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|         xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
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|         snprintf(consoleDev, PATH_MAX, "/dev/vt/%d", xf86Info.vtno);
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| 
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|         if (fd != -1) {
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|             close(fd);
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|         }
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| 
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| #endif                          /* HAS_USL_VTS */
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| 
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|  OPENCONSOLE:
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|         if (!KeepTty)
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|             setpgrp();
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| 
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|         if (((xf86Info.consoleFd = open(consoleDev, O_RDWR | O_NDELAY, 0)) < 0))
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|             FatalError("xf86OpenConsole: Cannot open %s (%s)\n",
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|                        consoleDev, strerror(errno));
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| 
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|         /* Change ownership of the vt or console */
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|         chown(consoleDev, getuid(), getgid());
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| 
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| #ifdef HAS_USL_VTS
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|         if (xf86Info.ShareVTs)
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|             return;
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| 
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|         if (vtEnabled) {
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|             /*
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|              * Now get the VT
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|              */
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|             switch_to(xf86Info.vtno, "xf86OpenConsole");
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| 
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| #ifdef VT_SET_CONSUSER          /* added in snv_139 */
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|             if (strcmp(display, "0") == 0)
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|                 if (ioctl(xf86Info.consoleFd, VT_SET_CONSUSER) != 0)
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|                     xf86Msg(X_WARNING,
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|                             "xf86OpenConsole: VT_SET_CONSUSER failed\n");
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| #endif
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| 
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|             if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0)
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|                 FatalError("xf86OpenConsole: VT_GETMODE failed\n");
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| 
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|             OsSignal(SIGUSR1, xf86VTAcquire);
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|             OsSignal(SIGUSR2, xf86VTRelease);
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| 
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|             VT.mode = VT_PROCESS;
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|             VT.acqsig = SIGUSR1;
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|             VT.relsig = SIGUSR2;
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| 
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|             if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0)
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|                 FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed\n");
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| 
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|             if (ioctl(xf86Info.consoleFd, VT_SETDISPINFO, atoi(display)) < 0)
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|                 xf86Msg(X_WARNING, "xf86OpenConsole: VT_SETDISPINFO failed\n");
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|         }
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| #endif
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| 
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| #ifdef KDSETMODE
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|         SYSCALL(i = ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS));
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|         if (i < 0) {
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|             xf86Msg(X_WARNING,
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|                     "xf86OpenConsole: KDSETMODE KD_GRAPHICS failed on %s (%s)\n",
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|                     consoleDev, strerror(errno));
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|         }
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| #endif
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|     }
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|     else {                      /* serverGeneration != 1 */
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| 
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| #ifdef HAS_USL_VTS
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|         if (vtEnabled && !xf86Info.ShareVTs) {
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|             /*
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|              * Now re-get the VT
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|              */
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|             if (xf86Info.autoVTSwitch)
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|                 switch_to(xf86Info.vtno, "xf86OpenConsole");
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| 
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| #ifdef VT_SET_CONSUSER          /* added in snv_139 */
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|             if (strcmp(display, "0") == 0)
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|                 if (ioctl(xf86Info.consoleFd, VT_SET_CONSUSER) != 0)
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|                     xf86Msg(X_WARNING,
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|                             "xf86OpenConsole: VT_SET_CONSUSER failed\n");
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| #endif
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| 
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|             /*
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|              * If the server doesn't have the VT when the reset occurs,
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|              * this is to make sure we don't continue until the activate
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|              * signal is received.
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|              */
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|             if (!xf86VTOwner())
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|                 sleep(5);
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|         }
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| #endif                          /* HAS_USL_VTS */
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| 
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|     }
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| }
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| 
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| void
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| xf86CloseConsole(void)
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| {
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| #ifdef HAS_USL_VTS
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|     struct vt_mode VT;
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| #endif
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| 
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| #if !defined(__i386__) && !defined(__i386) && !defined(__x86)
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| 
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|     if (!xf86DoConfigure) {
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|         int fd;
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| 
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|         /*
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|          * Wipe out framebuffer just like the non-SI Xsun server does.  This
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|          * could be improved by saving framebuffer contents in
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|          * xf86OpenConsole() above and restoring them here.  Also, it's unclear
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|          * at this point whether this should be done for all framebuffers in
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|          * the system, rather than only the console.
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|          */
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|         if ((fd = open(xf86SolarisFbDev, O_RDWR, 0)) < 0) {
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|             xf86Msg(X_WARNING,
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|                     "xf86CloseConsole():  unable to open framebuffer (%s)\n",
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|                     strerror(errno));
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|         }
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|         else {
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|             struct fbgattr fbattr;
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| 
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|             if ((ioctl(fd, FBIOGATTR, &fbattr) < 0) &&
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|                 (ioctl(fd, FBIOGTYPE, &fbattr.fbtype) < 0)) {
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|                 xf86Msg(X_WARNING,
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|                         "xf86CloseConsole():  unable to retrieve framebuffer"
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|                         " attributes (%s)\n", strerror(errno));
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|             }
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|             else {
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|                 void *fbdata;
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| 
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|                 fbdata = mmap(NULL, fbattr.fbtype.fb_size,
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|                               PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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|                 if (fbdata == MAP_FAILED) {
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|                     xf86Msg(X_WARNING,
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|                             "xf86CloseConsole():  unable to mmap framebuffer"
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|                             " (%s)\n", strerror(errno));
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|                 }
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|                 else {
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|                     memset(fbdata, 0, fbattr.fbtype.fb_size);
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|                     munmap(fbdata, fbattr.fbtype.fb_size);
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|                 }
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|             }
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| 
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|             close(fd);
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|         }
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|     }
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| 
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| #endif
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| 
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| #ifdef KDSETMODE
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|     /* Reset the display back to text mode */
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|     SYSCALL(ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT));
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| #endif
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| 
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| #ifdef HAS_USL_VTS
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|     if (vtEnabled) {
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|         if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1) {
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|             VT.mode = VT_AUTO;  /* Set default vt handling */
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|             ioctl(xf86Info.consoleFd, VT_SETMODE, &VT);
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|         }
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| 
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|         /* Activate the VT that X was started on */
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|         if (xf86Info.autoVTSwitch)
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|             switch_to(xf86StartVT, "xf86CloseConsole");
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|     }
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| #endif                          /* HAS_USL_VTS */
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| 
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|     close(xf86Info.consoleFd);
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| }
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| 
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| int
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| xf86ProcessArgument(int argc, char **argv, int i)
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| {
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|     /*
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|      * Keep server from detaching from controlling tty.  This is useful when
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|      * debugging, so the server can receive keyboard signals.
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|      */
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|     if (!strcmp(argv[i], "-keeptty")) {
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|         KeepTty = TRUE;
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|         return 1;
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|     }
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| 
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|     /*
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|      * Use /dev/console as the console device.
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|      */
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|     if (!strcmp(argv[i], "-C")) {
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|         UseConsole = TRUE;
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|         return 1;
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|     }
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| 
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| #ifdef HAS_USL_VTS
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| 
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|     if ((argv[i][0] == 'v') && (argv[i][1] == 't')) {
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|         if (sscanf(argv[i], "vt%d", &VTnum) == 0) {
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|             UseMsg();
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|             VTnum = -1;
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|             return 0;
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|         }
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| 
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|         return 1;
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|     }
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| 
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| #endif                          /* HAS_USL_VTS */
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| 
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|     if ((i + 1) < argc) {
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|         if (!strcmp(argv[i], "-dev")) {
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|             strlcpy(xf86SolarisFbDev, argv[i + 1], sizeof(xf86SolarisFbDev));
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|             return 2;
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|         }
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|     }
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| 
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|     return 0;
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| }
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| 
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| void
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| xf86UseMsg(void)
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| {
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| #ifdef HAS_USL_VTS
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|     ErrorF("vtX                    Use the specified VT number\n");
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| #endif
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|     ErrorF("-dev <fb>              Framebuffer device\n");
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|     ErrorF("-keeptty               Don't detach controlling tty\n");
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|     ErrorF("                       (for debugging only)\n");
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|     ErrorF("-C                     Use /dev/console as the console device\n");
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| }
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