xenocara/xserver/hw/xfree86/dixmods/extmod/modinit.c

/*
 * Copyright (c) 1997 Matthieu Herrb
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Matthieu Herrb not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Matthieu Herrb makes no
 * representations about the suitability of this software for any purpose.
 *  It is provided "as is" without express or implied warranty.
 *
 * MATTHIEU HERRB DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL MATTHIEU HERRB BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif

#include "xf86Module.h"
#include "xf86Opt.h"

#include <X11/Xproto.h>

#include "modinit.h"
#include "globals.h"

static MODULESETUPPROTO(extmodSetup);

/*
 * Array describing extensions to be initialized
 */
static ExtensionModule extensionModules[] = {
#ifdef XSELINUX
    {
	SELinuxExtensionInit,
	SELINUX_EXTENSION_NAME,
	&noSELinuxExtension,
	NULL,
	NULL
    },
#endif
#ifdef MULTIBUFFER
    {
	MultibufferExtensionInit,
	MULTIBUFFER_PROTOCOL_NAME,
	&noMultibufferExtension,
	NULL,
	NULL
    },
#endif
#ifdef SCREENSAVER
    {
	ScreenSaverExtensionInit,
	ScreenSaverName,
	&noScreenSaverExtension,
	NULL,
	NULL
    },
#endif
#ifdef XF86VIDMODE
    {
	XFree86VidModeExtensionInit,
	XF86VIDMODENAME,
	&noXFree86VidModeExtension,
	NULL,
	NULL
    },
#endif
#ifdef XFreeXDGA
    {
	XFree86DGAExtensionInit,
	XF86DGANAME,
	&noXFree86DGAExtension,
	XFree86DGARegister,
	NULL
    },
#endif
#ifdef DPMSExtension
    {
	DPMSExtensionInit,
	DPMSExtensionName,
	&noDPMSExtension,
	NULL,
	NULL
    },
#endif
#ifdef XV
    {
	XvExtensionInit,
	XvName,
	&noXvExtension,
	XvRegister,
	NULL
    },
    {
        XvMCExtensionInit,
        XvMCName,
        &noXvExtension,
        NULL,
        NULL
    },
#endif
#ifdef RES
    {
        ResExtensionInit,
        XRES_NAME, 
        &noResExtension,
        NULL,
        NULL
    },
#endif
    {				/* DON'T delete this entry ! */
	NULL,
	NULL,
	NULL,
	NULL,
	NULL
    }
};

static XF86ModuleVersionInfo VersRec =
{
	"extmod",
	MODULEVENDORSTRING,
	MODINFOSTRING1,
	MODINFOSTRING2,
	XORG_VERSION_CURRENT,
	1, 0, 0,
	ABI_CLASS_EXTENSION,
	ABI_EXTENSION_VERSION,
	MOD_CLASS_EXTENSION,
	{0,0,0,0}
};

/*
 * Data for the loader
 */
_X_EXPORT XF86ModuleData extmodModuleData = { &VersRec, extmodSetup, NULL };

static pointer
extmodSetup(pointer module, pointer opts, int *errmaj, int *errmin)
{
    int i;

    /* XXX the option stuff here is largely a sample/test case */

    for (i = 0; extensionModules[i].name != NULL; i++) {
	if (opts) {
	    char *s;
	    s = (char *)xalloc(strlen(extensionModules[i].name) + 5);
	    if (s) {
		pointer o;
		strcpy(s, "omit");
		strcat(s, extensionModules[i].name);
		o = xf86FindOption(opts, s);
		xfree(s);
		if (o) {
		    xf86MarkOptionUsed(o);
		    continue;
		}
	    }
	}

#ifdef XSELINUX
	if (! strcmp(SELINUX_EXTENSION_NAME, extensionModules[i].name)) {
	    pointer o;
	    selinuxEnforcingState = SELINUX_MODE_DEFAULT;

	    if ((o = xf86FindOption(opts, "SELinux mode disabled"))) {
		xf86MarkOptionUsed(o);
		selinuxEnforcingState = SELINUX_MODE_DISABLED;
	    }
	    if ((o = xf86FindOption(opts, "SELinux mode permissive"))) {
		xf86MarkOptionUsed(o);
		selinuxEnforcingState = SELINUX_MODE_PERMISSIVE;
	    }
	    if ((o = xf86FindOption(opts, "SELinux mode enforcing"))) {
		xf86MarkOptionUsed(o);
		selinuxEnforcingState = SELINUX_MODE_ENFORCING;
	    }
	}
#endif

	LoadExtension(&extensionModules[i], FALSE);
    }
    /* Need a non-NULL return */
    return (pointer)1;
}