49f77fff14
Save in a few special cases, _X_EXPORT should not be used in C source files. Instead, it should be used in headers, and the proper C source include that header. Some special cases are symbols that need to be shared between modules, but not expected to be used by external drivers, and symbols that are accessible via LoaderSymbol/dlopen. This patch also adds conditionally some new sdk header files, depending on extensions enabled. These files were added to match pattern for other extensions/modules, that is, have the headers "deciding" symbol visibility in the sdk. These headers are: o Xext/panoramiXsrv.h, Xext/panoramiX.h o fbpict.h (unconditionally) o vidmodeproc.h o mioverlay.h (unconditionally, used only by xaa) o xfixes.h (unconditionally, symbols required by dri2) LoaderSymbol and similar functions now don't have different prototypes, in loaderProcs.h and xf86Module.h, so that both headers can be included, without the need of defining IN_LOADER. xf86NewInputDevice() device prototype readded to xf86Xinput.h, but not exported (and with a comment about it).
253 lines
6.3 KiB
C
253 lines
6.3 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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*
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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 Thomas Roell 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. Thomas Roell and
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* David Wexelblat makes 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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* THOMAS ROELL AND DAVID WEXELBLAT DISCLAIMS 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 THOMAS ROELL 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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#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 <X11/Xmd.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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static Bool KeepTty = FALSE;
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#ifdef SVR4
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static Bool Protect0 = FALSE;
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#endif
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static int VTnum = -1;
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void
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xf86OpenConsole()
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{
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int fd;
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struct vt_mode VT;
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char vtname1[10],vtname2[10];
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MessageType from = X_PROBED;
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if (serverGeneration == 1)
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{
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/* check if we're run with euid==0 */
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if (geteuid() != 0)
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{
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FatalError("xf86OpenConsole: Server must be suid root\n");
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}
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#ifdef SVR4
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/* Protect page 0 to help find NULL dereferencing */
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/* mprotect() doesn't seem to work */
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if (Protect0)
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{
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int fd = -1;
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if ((fd = open("/dev/zero", O_RDONLY, 0)) < 0)
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{
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xf86Msg(X_WARNING,
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"xf86OpenConsole: cannot open /dev/zero (%s)\n",
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strerror(errno));
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}
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else
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{
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if ((int)mmap(0, 0x1000, PROT_NONE,
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MAP_FIXED | MAP_SHARED, fd, 0) == -1)
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{
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xf86Msg(X_WARNING,
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"xf86OpenConsole: failed to protect page 0 (%s)\n",
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strerror(errno));
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}
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close(fd);
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}
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}
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#endif
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/*
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* setup the virtual terminal manager
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*/
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if (VTnum != -1)
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{
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xf86Info.vtno = VTnum;
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from = X_CMDLINE;
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}
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else
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{
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if ((fd = open("/dev/console",O_WRONLY,0)) < 0)
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{
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FatalError(
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"xf86OpenConsole: Cannot open /dev/console (%s)\n",
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strerror(errno));
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}
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if ((ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0) ||
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(xf86Info.vtno == -1))
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{
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FatalError("xf86OpenConsole: Cannot find a free VT\n");
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}
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close(fd);
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}
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xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
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sprintf(vtname1,"/dev/vc%02d",xf86Info.vtno); /* ESIX */
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sprintf(vtname2,"/dev/vt%02d",xf86Info.vtno); /* rest of the world */
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if (!KeepTty)
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{
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setpgrp();
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}
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if (((xf86Info.consoleFd = open(vtname1, O_RDWR|O_NDELAY, 0)) < 0) &&
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((xf86Info.consoleFd = open(vtname2, O_RDWR|O_NDELAY, 0)) < 0))
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{
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FatalError("xf86OpenConsole: Cannot open %s (%s) (%s)\n",
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vtname2, vtname1, strerror(errno));
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}
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/* change ownership of the vt */
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if (chown(vtname1, getuid(), getgid()) < 0)
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{
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chown(vtname2, getuid(), getgid());
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}
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/*
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* now get the VT
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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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if (ioctl(xf86Info.consoleFd, VT_WAITACTIVE, xf86Info.vtno) != 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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if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0)
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{
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FatalError("xf86OpenConsole: VT_GETMODE failed\n");
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}
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signal(SIGUSR1, xf86VTRequest);
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VT.mode = VT_PROCESS;
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VT.relsig = SIGUSR1;
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VT.acqsig = SIGUSR1;
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if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0)
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{
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FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed\n");
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}
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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\n");
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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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/*
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* now get the VT
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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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if (ioctl(xf86Info.consoleFd, VT_WAITACTIVE, xf86Info.vtno) != 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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/*
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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 (!xf86Screens[0]->vtSema)
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sleep(5);
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}
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return;
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}
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void
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xf86CloseConsole()
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{
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struct vt_mode VT;
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#if 0
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ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno);
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ioctl(xf86Info.consoleFd, VT_WAITACTIVE, 0);
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#endif
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ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT); /* Back to text mode ... */
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if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1)
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{
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VT.mode = VT_AUTO;
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ioctl(xf86Info.consoleFd, VT_SETMODE, &VT); /* set dflt vt handling */
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}
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close(xf86Info.consoleFd); /* make the vt-manager happy */
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return;
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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
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* when 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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{
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KeepTty = TRUE;
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return(1);
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}
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#ifdef SVR4
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/*
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* Undocumented flag to protect page 0 from read/write to help
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* catch NULL pointer dereferences. This is purely a debugging
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* flag.
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*/
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if (!strcmp(argv[i], "-protect0"))
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{
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Protect0 = TRUE;
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return(1);
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}
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#endif
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if ((argv[i][0] == 'v') && (argv[i][1] == 't'))
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{
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if (sscanf(argv[i], "vt%2d", &VTnum) == 0)
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{
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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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return(1);
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}
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return(0);
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}
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void
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xf86UseMsg()
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{
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ErrorF("vtXX use the specified VT number\n");
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ErrorF("-keeptty ");
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ErrorF("don't detach controlling tty (for debugging only)\n");
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return;
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}
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