libX11 git update 19/10/2010

1 files changed, 963 insertions, 944 deletions

diff --git a/libX11/src/OpenDis.c b/libX11/src/OpenDis.c
index 46e102685..02cdb260a 100644
--- a/libX11/src/OpenDis.c
+++ b/libX11/src/OpenDis.c
@@ -1,944 +1,963 @@
-/*
-
-Copyright 1985, 1986, 1998  The Open Group
-
-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.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-*/
-
-#define NEED_REPLIES
-#define NEED_EVENTS
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-#if USE_XCB
-#include "Xxcbint.h"
-#else /* !USE_XCB */
-#include <X11/Xtrans/Xtrans.h>
-#include <X11/extensions/bigreqstr.h>
-#endif /* USE_XCB */
-#include <X11/Xatom.h>
-#include <X11/Xresource.h>
-#include <stdio.h>
-#include "Xintconn.h"
-
-#ifdef XKB
-#include "XKBlib.h"
-#endif /* XKB */
-
-#if !USE_XCB
-#ifdef X_NOT_POSIX
-#define Size_t unsigned int
-#else
-#define Size_t size_t
-#endif
-
-#define bignamelen (sizeof(XBigReqExtensionName) - 1)
-
-typedef struct {
-    unsigned long seq;
-    int opcode;
-} _XBigReqState;
-#endif /* !USE_XCB */
-
-#ifdef XTHREADS
-#include "locking.h"
-int  (*_XInitDisplayLock_fn)(Display *dpy) = NULL;
-void (*_XFreeDisplayLock_fn)(Display *dpy) = NULL;
-
-#define InitDisplayLock(d)	(_XInitDisplayLock_fn ? (*_XInitDisplayLock_fn)(d) : Success)
-#define FreeDisplayLock(d)	if (_XFreeDisplayLock_fn) (*_XFreeDisplayLock_fn)(d)
-#else
-#define InitDisplayLock(dis) Success
-#define FreeDisplayLock(dis)
-#endif /* XTHREADS */
-
-static xReq _dummy_request = {
-	0, 0, 0
-};
-
-static void OutOfMemory(Display *dpy, char *setup);
-#if !USE_XCB
-static Bool _XBigReqHandler(Display *dpy, xReply *rep, char *buf, int len,
-				XPointer data);
-#endif /* !USE_XCB */
-
-/*
- * Connects to a server, creates a Display object and returns a pointer to
- * the newly created Display back to the caller.
- */
-Display *
-XOpenDisplay (
-	register _Xconst char *display)
-{
-	register Display *dpy;		/* New Display object being created. */
-	register int i;
-	int j, k;			/* random iterator indexes */
-#if !USE_XCB
-	char *display_name;		/* pointer to display name */
-	int endian;			/* to determine which endian. */
-	xConnClientPrefix client;	/* client information */
-	int idisplay;			/* display number */
-	int prefixread = 0;             /* setup prefix already read? */
-	char *conn_auth_name, *conn_auth_data;
-	int conn_auth_namelen, conn_auth_datalen;
-#endif /* !USE_XCB */
-	char *setup = NULL;		/* memory allocated at startup */
-	char *fullname = NULL;		/* expanded name of display */
-	int iscreen;			/* screen number */
-	xConnSetupPrefix prefix;	/* prefix information */
-	int vendorlen;			/* length of vendor string */
-	union {
-		xConnSetup *setup;
-		char *failure;
-		char *vendor;
-		xPixmapFormat *sf;
-		xWindowRoot *rp;
-		xDepth *dp;
-		xVisualType *vp;
-	} u;				/* proto data returned from server */
-	long setuplength;	/* number of bytes in setup message */
-	long usedbytes = 0;     /* number of bytes we have processed */
-	unsigned long mask;
-       long int conn_buf_size;
-       char *xlib_buffer_size;
-
-#if !USE_XCB
-	bzero((char *) &client, sizeof(client));
-	bzero((char *) &prefix, sizeof(prefix));
-
-	/*
-	 * If the display specifier string supplied as an argument to this
-	 * routine is NULL or a pointer to NULL, read the DISPLAY variable.
-	 */
-	if (display == NULL || *display == '\0') {
-		if ((display_name = getenv("DISPLAY")) == NULL) {
-			/* Oops! No DISPLAY environment variable - error. */
-			return(NULL);
-		}
-	}
-	else {
-		/* Display is non-NULL, copy the pointer */
-		display_name = (char *)display;
-	}
-#endif /* !USE_XCB */
-
-/*
- * Set the default error handlers.  This allows the global variables to
- * default to NULL for use with shared libraries.
- */
-	if (_XErrorFunction == NULL) (void) XSetErrorHandler (NULL);
-	if (_XIOErrorFunction == NULL) (void) XSetIOErrorHandler (NULL);
-
-/*
- * Attempt to allocate a display structure. Return NULL if allocation fails.
- */
-	if ((dpy = (Display *)Xcalloc(1, sizeof(Display))) == NULL) {
-		return(NULL);
-	}
-
-/*
- * Call the Connect routine to get the transport connection object.
- * If NULL is returned, the connection failed. The connect routine
- * will set fullname to point to the expanded name.
- */
-
-#if USE_XCB
-	if(!_XConnectXCB(dpy, display, &fullname, &iscreen)) {
-		dpy->display_name = fullname;
-		OutOfMemory(dpy, NULL);
-		return NULL;
-	}
-#else /* !USE_XCB */
-	if ((dpy->trans_conn = _X11TransConnectDisplay (
-					 display_name, &fullname, &idisplay,
-					 &iscreen, &conn_auth_name,
-					 &conn_auth_namelen, &conn_auth_data,
-					 &conn_auth_datalen)) == NULL) {
-		Xfree ((char *) dpy);
-		return(NULL);
-	}
-
-	dpy->fd = _X11TransGetConnectionNumber (dpy->trans_conn);
-#endif /* USE_XCB */
-
-	/* Initialize as much of the display structure as we can.
-	 * Initialize pointers to NULL so that XFreeDisplayStructure will
-	 * work if we run out of memory before we finish initializing.
-	 */
-	dpy->display_name	= fullname;
-	dpy->keysyms		= (KeySym *) NULL;
-	dpy->modifiermap	= NULL;
-	dpy->lock_meaning	= NoSymbol;
-	dpy->keysyms_per_keycode = 0;
-	dpy->xdefaults		= (char *)NULL;
-	dpy->scratch_length	= 0L;
-	dpy->scratch_buffer	= NULL;
-	dpy->key_bindings	= NULL;
-	dpy->ext_procs		= (_XExtension *)NULL;
-	dpy->ext_data		= (XExtData *)NULL;
-	dpy->ext_number 	= 0;
-	dpy->event_vec[X_Error] = _XUnknownWireEvent;
-	dpy->event_vec[X_Reply] = _XUnknownWireEvent;
-	dpy->wire_vec[X_Error]  = _XUnknownNativeEvent;
-	dpy->wire_vec[X_Reply]  = _XUnknownNativeEvent;
-	for (i = KeyPress; i < LASTEvent; i++) {
-	    dpy->event_vec[i] 	= _XWireToEvent;
-	    dpy->wire_vec[i] 	= NULL;
-	}
-	for (i = LASTEvent; i < 128; i++) {
-	    dpy->event_vec[i] 	= _XUnknownWireEvent;
-	    dpy->wire_vec[i] 	= _XUnknownNativeEvent;
-	}
-	dpy->resource_id	= 0;
-	dpy->db 		= (struct _XrmHashBucketRec *)NULL;
-	dpy->cursor_font	= None;
-	dpy->flags		= 0;
-	dpy->async_handlers	= NULL;
-	dpy->screens		= NULL;
-	dpy->vendor		= NULL;
-	dpy->buffer		= NULL;
-	dpy->atoms		= NULL;
-	dpy->error_vec		= NULL;
-	dpy->context_db		= NULL;
-	dpy->free_funcs		= NULL;
-	dpy->pixmap_format	= NULL;
-	dpy->cms.clientCmaps	= NULL;
-	dpy->cms.defaultCCCs	= NULL;
-	dpy->cms.perVisualIntensityMaps = NULL;
-	dpy->im_filters		= NULL;
- 	dpy->bigreq_size	= 0;
-	dpy->lock		= NULL;
-	dpy->lock_fns		= NULL;
-	dpy->qfree		= NULL;
-	dpy->next_event_serial_num = 1;
-	dpy->im_fd_info		= NULL;
-	dpy->im_fd_length	= 0;
-	dpy->conn_watchers	= NULL;
-	dpy->watcher_count	= 0;
-	dpy->filedes		= NULL;
-	dpy->flushes		= NULL;
-	dpy->xcmisc_opcode	= 0;
-	dpy->xkb_info		= NULL;
-
-/*
- * Setup other information in this display structure.
- */
-	dpy->vnumber = X_PROTOCOL;
-	dpy->resource_alloc = _XAllocID;
-	dpy->idlist_alloc = _XAllocIDs;
-	dpy->synchandler = NULL;
-	dpy->savedsynchandler = NULL;
-	dpy->request = 0;
-	dpy->last_request_read = 0;
-	dpy->default_screen = iscreen;  /* Value returned by ConnectDisplay */
-	dpy->last_req = (char *)&_dummy_request;
-
-	/* Initialize the display lock */
-	if (InitDisplayLock(dpy) != 0) {
-	        OutOfMemory (dpy, setup);
-		return(NULL);
-	}
-
-	if (!_XPollfdCacheInit(dpy)) {
-	        OutOfMemory (dpy, setup);
-		return(NULL);
-	}
-
-	/* Set up the output buffers. */
-#ifndef XLIBDEFAULTBUFSIZE
-#define XLIBDEFAULTBUFSIZE 16384 /* 16k */
-#endif
-#ifndef XLIBMINBUFSIZE
-#define XLIBMINBUFSIZE BUFSIZE /* old default buffer size */
-#endif
-	xlib_buffer_size = getenv("XLIBBUFFERSIZE");
-
-#ifdef __sun /* Backwards compatibility for old Solaris libX11 name */
-	if (xlib_buffer_size == NULL)
-	    xlib_buffer_size = getenv("XSUNBUFFERSIZE");
-#endif
-
-	if (xlib_buffer_size == NULL)
-	    conn_buf_size = XLIBDEFAULTBUFSIZE;
-	else
-	    conn_buf_size = 1024 * strtol(xlib_buffer_size, NULL, 10);
-	if (conn_buf_size < XLIBMINBUFSIZE)
-	    conn_buf_size = XLIBMINBUFSIZE;
-
-	if ((dpy->bufptr = dpy->buffer = Xcalloc(1, conn_buf_size)) == NULL) {
-	    OutOfMemory (dpy, setup);
-	    return(NULL);
-	}
-	dpy->bufmax = dpy->buffer + conn_buf_size;
-#if USE_XCB
-	dpy->xcb->real_bufmax = dpy->bufmax;
-	dpy->bufmax = dpy->buffer;
-#endif
-
-	/* Set up the input event queue and input event queue parameters. */
-	dpy->head = dpy->tail = NULL;
-	dpy->qlen = 0;
-
-	/* Set up free-function record */
-	if ((dpy->free_funcs = (_XFreeFuncRec *)Xcalloc(1,
-							sizeof(_XFreeFuncRec)))
-	    == NULL) {
-	    OutOfMemory (dpy, setup);
-	    return(NULL);
-	}
-
-#if !USE_XCB
-/*
- * The xConnClientPrefix describes the initial connection setup information
- * and is followed by the authorization information.  Sites that are interested
- * in security are strongly encouraged to use an authentication and
- * authorization system such as Kerberos.
- */
-	endian = 1;
-	if (*(char *) &endian)
-	    client.byteOrder = '\154'; /* 'l' */
-	else
-	    client.byteOrder = '\102'; /* 'B' */
-	client.majorVersion = X_PROTOCOL;
-	client.minorVersion = X_PROTOCOL_REVISION;
-	client.nbytesAuthProto = conn_auth_namelen;
-	client.nbytesAuthString = conn_auth_datalen;
-	prefixread = _XSendClientPrefix(dpy, &client,
-					conn_auth_name, conn_auth_data,
-					&prefix);
-	if (prefixread < 0)
-	{
-	    _XDisconnectDisplay (dpy->trans_conn);
-	    Xfree ((char *)dpy);
-	    return(NULL);
-	}
-	if (conn_auth_name) Xfree(conn_auth_name);
-	if (conn_auth_data) Xfree(conn_auth_data);
-/*
- * Now see if connection was accepted...
- */
-	/* these internal functions expect the display to be locked */
-	LockDisplay(dpy);
-
-	if (prefixread == 0)
-	    _XRead (dpy, (char *)&prefix,(long)SIZEOF(xConnSetupPrefix));
-
-	/* an Authenticate reply we weren't expecting? */
-	if (prefix.success != xTrue && prefix.success != xFalse) {
-	    fprintf (stderr,
-      "Xlib: unexpected connection setup reply from server, type %d.\r\n",
-		     prefix.success);
-	    _XDisconnectDisplay (dpy->trans_conn);
-	    Xfree ((char *)dpy);
-	    return(NULL);
-	}
-
-	if (prefix.majorVersion != X_PROTOCOL) {
-	    /* XXX - printing messages marks a bad programming interface */
-	    fprintf (stderr,
-     "Xlib: client uses different protocol version (%d) than server (%d)!\r\n",
-		     X_PROTOCOL, prefix.majorVersion);
-	    _XDisconnectDisplay (dpy->trans_conn);
-	    Xfree ((char *)dpy);
-	    return(NULL);
-	}
-#endif /* !USE_XCB */
-
-#if USE_XCB
-	{
-		const struct xcb_setup_t *xcbsetup = xcb_get_setup(dpy->xcb->connection);
-		memcpy(&prefix, xcbsetup, sizeof(prefix));
-		setuplength = prefix.length << 2;
-		setup = (char *) xcbsetup;
-		setup += SIZEOF(xConnSetupPrefix);
-		u.setup = (xConnSetup *) setup;
-	}
-#else /* !USE_XCB */
-	setuplength = prefix.length << 2;
-	if ( (u.setup = (xConnSetup *)
-	      (setup =  Xmalloc ((unsigned) setuplength))) == NULL) {
-		_XDisconnectDisplay (dpy->trans_conn);
-		Xfree ((char *)dpy);
-		return(NULL);
-	}
-	_XRead (dpy, (char *)u.setup, setuplength);
-
-/*
- * If the connection was not accepted by the server due to problems,
- * give error message to the user....
- */
-	if (prefix.success != xTrue) {
-		/* XXX - printing messages marks a bad programming interface */
-		fprintf (stderr,
-		      "Xlib: connection to \"%s\" refused by server\r\nXlib: ",
-			 fullname);
-
-		if (prefix.lengthReason > setuplength) {
-		    fprintf (stderr, "Xlib: Broken initial reply: length of reason > length of packet\r\n");
-		}else{
-		    (void) fwrite (u.failure, (Size_t)sizeof(char),
-			       (Size_t)prefix.lengthReason, stderr);
-		    (void) fwrite ("\r\n", sizeof(char), 2, stderr);
-		}
-
-		OutOfMemory(dpy, setup);
-		return (NULL);
-	}
-#endif /* USE_XCB */
-
-/*
- * Check if the reply was long enough to get any information out of it.
- */
-	usedbytes = sz_xConnSetup;
-	if (setuplength < usedbytes ) {
-	    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);
-	    OutOfMemory(dpy, setup);
-	    return (NULL);
-	}
-
-/*
- * We succeeded at authorization, so let us move the data into
- * the display structure.
- */
-	dpy->proto_major_version= prefix.majorVersion;
-	dpy->proto_minor_version= prefix.minorVersion;
-	dpy->release 		= u.setup->release;
-	dpy->resource_base	= u.setup->ridBase;
-	dpy->resource_mask	= u.setup->ridMask;
-	dpy->min_keycode	= u.setup->minKeyCode;
-	dpy->max_keycode	= u.setup->maxKeyCode;
-	dpy->motion_buffer	= u.setup->motionBufferSize;
-	dpy->nformats		= u.setup->numFormats;
-	dpy->nscreens		= u.setup->numRoots;
-	dpy->byte_order		= u.setup->imageByteOrder;
-	dpy->bitmap_unit	= u.setup->bitmapScanlineUnit;
-	dpy->bitmap_pad		= u.setup->bitmapScanlinePad;
-	dpy->bitmap_bit_order   = u.setup->bitmapBitOrder;
-	dpy->max_request_size	= u.setup->maxRequestSize;
-	mask = dpy->resource_mask;
-	dpy->resource_shift	= 0;
-	if (!mask)
-	{
-	    fprintf (stderr, "Xlib: connection to \"%s\" invalid setup\n",
-		     fullname);
-	    OutOfMemory(dpy, setup);
-	    return (NULL);
-	}
-
-	while (!(mask & 1)) {
-	    dpy->resource_shift++;
-	    mask = mask >> 1;
-	}
-	dpy->resource_max = (dpy->resource_mask >> dpy->resource_shift) - 5;
-/*
- * now extract the vendor string...  String must be null terminated,
- * padded to multiple of 4 bytes.
- */
-	/* Check for a sane vendor string length */
-	if (u.setup->nbytesVendor > 256) {
-	    OutOfMemory(dpy, setup);
-	    return (NULL);
-	}
-
-	dpy->vendor = (char *) Xmalloc((unsigned) (u.setup->nbytesVendor + 1));
-	if (dpy->vendor == NULL) {
-	    OutOfMemory(dpy, setup);
-	    return (NULL);
-	}
-	vendorlen = u.setup->nbytesVendor;
-
-/*
- * validate setup length
- */
-	usedbytes += (vendorlen + 3) & ~3;
-	if (setuplength < usedbytes) {
-	    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);
-	    OutOfMemory(dpy, setup);
-	    return (NULL);
-	}
-
- 	u.setup = (xConnSetup *) (((char *) u.setup) + sz_xConnSetup);
-  	(void) strncpy(dpy->vendor, u.vendor, vendorlen);
-	dpy->vendor[vendorlen] = '\0';
- 	vendorlen = (vendorlen + 3) & ~3;	/* round up */
-	u.vendor += vendorlen;
-
-/*
- * Now iterate down setup information.....
- */
-	dpy->pixmap_format =
-	    (ScreenFormat *)Xmalloc(
-		(unsigned) (dpy->nformats *sizeof(ScreenFormat)));
-	if (dpy->pixmap_format == NULL) {
-	        OutOfMemory (dpy, setup);
-		return(NULL);
-	}
-/*
- * First decode the Z axis Screen format information.
- */
-	usedbytes += dpy->nformats * sz_xPixmapFormat;
-
-	if (setuplength < usedbytes) {
-	    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);
-	    OutOfMemory (dpy, setup);
-	    return(NULL);
-	}
-
-	for (i = 0; i < dpy->nformats; i++) {
-	    register ScreenFormat *fmt = &dpy->pixmap_format[i];
-	    fmt->depth = u.sf->depth;
-	    fmt->bits_per_pixel = u.sf->bitsPerPixel;
-	    fmt->scanline_pad = u.sf->scanLinePad;
-	    fmt->ext_data = NULL;
-	    u.sf = (xPixmapFormat *) (((char *) u.sf) + sz_xPixmapFormat);
-	}
-
-/*
- * next the Screen structures.
- */
-	dpy->screens =
-	    (Screen *)Xmalloc((unsigned) dpy->nscreens*sizeof(Screen));
-	if (dpy->screens == NULL) {
-	        OutOfMemory (dpy, setup);
-		return(NULL);
-	}
-
-/*
- * Now go deal with each screen structure.
- */
-	for (i = 0; i < dpy->nscreens; i++) {
-	    register Screen *sp = &dpy->screens[i];
-	    VisualID root_visualID;
-
-	    usedbytes += sz_xWindowRoot;
-	    if (setuplength < usedbytes) {
-		fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);
-		OutOfMemory (dpy, setup);
-		return(NULL);
-	    }
-
-	    root_visualID = u.rp->rootVisualID;
-	    sp->display	    = dpy;
-	    sp->root 	    = u.rp->windowId;
-	    sp->cmap 	    = u.rp->defaultColormap;
-	    sp->white_pixel = u.rp->whitePixel;
-	    sp->black_pixel = u.rp->blackPixel;
-	    sp->root_input_mask = u.rp->currentInputMask;
-	    sp->width	    = u.rp->pixWidth;
-	    sp->height	    = u.rp->pixHeight;
-	    sp->mwidth	    = u.rp->mmWidth;
-	    sp->mheight	    = u.rp->mmHeight;
-	    sp->min_maps    = u.rp->minInstalledMaps;
-	    sp->max_maps    = u.rp->maxInstalledMaps;
-	    sp->backing_store= u.rp->backingStore;
-	    sp->save_unders = u.rp->saveUnders;
-	    sp->root_depth  = u.rp->rootDepth;
-	    sp->ndepths	    = u.rp->nDepths;
-	    sp->ext_data   = NULL;
-	    u.rp = (xWindowRoot *) (((char *) u.rp) + sz_xWindowRoot);
-/*
- * lets set up the depth structures.
- */
-	    sp->depths = (Depth *)Xmalloc(
-			(unsigned)sp->ndepths*sizeof(Depth));
-	    if (sp->depths == NULL) {
-		OutOfMemory (dpy, setup);
-		return(NULL);
-	    }
-	    /*
-	     * for all depths on this screen.
-	     */
-	    for (j = 0; j < sp->ndepths; j++) {
-		Depth *dp = &sp->depths[j];
-
-		usedbytes += sz_xDepth;
-		if (setuplength < usedbytes) {
-		    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);
-		    OutOfMemory (dpy, setup);
-		    return(NULL);
-		}
-
-		dp->depth = u.dp->depth;
-		dp->nvisuals = u.dp->nVisuals;
-		u.dp = (xDepth *) (((char *) u.dp) + sz_xDepth);
-		if (dp->nvisuals > 0) {
-		    dp->visuals =
-		      (Visual *)Xmalloc((unsigned)dp->nvisuals*sizeof(Visual));
-		    if (dp->visuals == NULL) {
-			OutOfMemory (dpy, setup);
-			return(NULL);
-		    }
-		    for (k = 0; k < dp->nvisuals; k++) {
-			register Visual *vp = &dp->visuals[k];
-
-			usedbytes += sz_xVisualType;
-			if (setuplength < usedbytes) {
-			    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);
-			    OutOfMemory (dpy, setup);
-			    return(NULL);
-			}
-
-			vp->visualid	= u.vp->visualID;
-			vp->class	= u.vp->class;
-			vp->bits_per_rgb= u.vp->bitsPerRGB;
-			vp->map_entries	= u.vp->colormapEntries;
-			vp->red_mask	= u.vp->redMask;
-			vp->green_mask	= u.vp->greenMask;
-			vp->blue_mask	= u.vp->blueMask;
-			vp->ext_data	= NULL;
-			u.vp = (xVisualType *) (((char *) u.vp) +
-						sz_xVisualType);
-		    }
-		    if (dp->depth == 32 && getenv ("XLIB_SKIP_ARGB_VISUALS"))
-		    {
-			Xfree (dp->visuals);
-			dp->visuals = NULL;
-			dp->nvisuals = 0;
-		    }
-		} else {
-		    dp->visuals = (Visual *) NULL;
-		}
-	    }
-	    sp->root_visual = _XVIDtoVisual(dpy, root_visualID);
-	}
-
-	if(usedbytes != setuplength){
-	    /* Sanity check, shouldn't happen. */
-	    fprintf(stderr, "Xlib: Did not parse entire setup message: "
-	                    "parsed: %ld, message: %ld\n",
-		    usedbytes, setuplength);
-	    OutOfMemory(dpy, setup);
-	    return(NULL);
-	}
-
-/*
- * Now start talking to the server to setup all other information...
- */
-
-#if !USE_XCB
-	Xfree (setup);	/* all finished with setup information */
-#endif /* !USE_XCB */
-
-/*
- * Make sure default screen is legal.
- */
-	if (iscreen >= dpy->nscreens) {
-	    OutOfMemory(dpy, (char *) NULL);
-	    return(NULL);
-	}
-
-#if !USE_XCB
-/*
- * finished calling internal routines, now unlock for external routines
- */
-	UnlockDisplay(dpy);
-#endif /* !USE_XCB */
-
-#if USE_XCB
-	dpy->bigreq_size = xcb_get_maximum_request_length(dpy->xcb->connection);
-	if(dpy->bigreq_size <= dpy->max_request_size)
-		dpy->bigreq_size = 0;
-#endif /* USE_XCB */
-
-/*
- * Set up other stuff clients are always going to use.
- */
-	for (i = 0; i < dpy->nscreens; i++) {
-	    register Screen *sp = &dpy->screens[i];
-	    XGCValues values;
-	    values.foreground = sp->black_pixel;
-	    values.background = sp->white_pixel;
-	    if ((sp->default_gc = XCreateGC (dpy, sp->root,
-					     GCForeground|GCBackground,
-					     &values)) == NULL) {
-		OutOfMemory(dpy, (char *) NULL);
-		return (NULL);
-	    }
-	}
-/*
- * call into synchronization routine so that all programs can be
- * forced synchronous
- */
-	(void) XSynchronize(dpy, _Xdebug);
-
-/*
- * get availability of large requests, and
- * get the resource manager database off the root window.
- */
-	LockDisplay(dpy);
-	{
-	    xGetPropertyReply reply;
-	    xGetPropertyReq *req;
-#if !USE_XCB
-	    _XAsyncHandler async;
-	    _XBigReqState async_state;
-	    xQueryExtensionReq *qreq;
-	    xBigReqEnableReq *breq;
-	    xBigReqEnableReply brep;
-
-	    GetReq(QueryExtension, qreq);
-	    async_state.seq = dpy->request;
-	    async_state.opcode = 0;
-	    async.next = dpy->async_handlers;
-	    async.handler = _XBigReqHandler;
-	    async.data = (XPointer)&async_state;
-	    dpy->async_handlers = &async;
-	    qreq->nbytes = bignamelen;
-	    qreq->length += (bignamelen+3)>>2;
-	    Data(dpy, XBigReqExtensionName, bignamelen);
-#endif /* !USE_XCB */
-
-	    GetReq (GetProperty, req);
-	    req->window = RootWindow(dpy, 0);
-	    req->property = XA_RESOURCE_MANAGER;
-	    req->type = XA_STRING;
-	    req->delete = False;
-	    req->longOffset = 0;
-	    req->longLength = 100000000L;
-
-	    if (_XReply (dpy, (xReply *) &reply, 0, xFalse)) {
-		if (reply.format == 8 && reply.propertyType == XA_STRING &&
-		    (reply.nItems + 1 > 0) &&
-		    (reply.nItems <= req->longLength * 4) &&
-		    (dpy->xdefaults = Xmalloc (reply.nItems + 1))) {
-		    _XReadPad (dpy, dpy->xdefaults, reply.nItems);
-		    dpy->xdefaults[reply.nItems] = '\0';
-		}
-		else if (reply.propertyType != None)
-		    _XEatData(dpy, reply.nItems * (reply.format >> 3));
-	    }
-#if !USE_XCB
-	    DeqAsyncHandler(dpy, &async);
-	    if (async_state.opcode) {
-		GetReq(BigReqEnable, breq);
-		breq->reqType = async_state.opcode;
-		breq->brReqType = X_BigReqEnable;
-		if (_XReply(dpy, (xReply *)&brep, 0, xFalse))
-		    dpy->bigreq_size = brep.max_request_size;
-	    }
-#endif /* !USE_XCB */
-	}
-	UnlockDisplay(dpy);
-
-#ifdef MOTIFBC
-	{
-	    extern Display *_XHeadOfDisplayList;
-	    _XHeadOfDisplayList = dpy;
-	}
-#endif
-#ifdef XKB
-	XkbUseExtension(dpy,NULL,NULL);
-#endif
-/*
- * and return successfully
- */
- 	return(dpy);
-}
-
-#if !USE_XCB
-static Bool
-_XBigReqHandler(
-    register Display *dpy,
-    register xReply *rep,
-    char *buf,
-    int len,
-    XPointer data)
-{
-    _XBigReqState *state;
-    xQueryExtensionReply replbuf;
-    xQueryExtensionReply *repl;
-
-    state = (_XBigReqState *)data;
-    if (dpy->last_request_read != state->seq)
-	return False;
-    if (rep->generic.type == X_Error)
-	return True;
-    repl = (xQueryExtensionReply *)
-	_XGetAsyncReply(dpy, (char *)&replbuf, rep, buf, len,
-			(SIZEOF(xQueryExtensionReply) - SIZEOF(xReply)) >> 2,
-			True);
-    if (repl->present)
-	state->opcode = repl->major_opcode;
-    return True;
-}
-#endif /* !USE_XCB */
-
-
-/* XFreeDisplayStructure frees all the storage associated with a
- * Display.  It is used by XOpenDisplay if it runs out of memory,
- * and also by XCloseDisplay.   It needs to check whether all pointers
- * are non-NULL before dereferencing them, since it may be called
- * by XOpenDisplay before the Display structure is fully formed.
- * XOpenDisplay must be sure to initialize all the pointers to NULL
- * before the first possible call on this.
- */
-
-void _XFreeDisplayStructure(Display *dpy)
-{
-	/* move all cookies in the EQ to the jar, then free them. */
-	if (dpy->qfree) {
-	    _XQEvent *qelt = dpy->qfree;
-	    while (qelt) {
-		if (_XIsEventCookie(dpy, &qelt->event))
-		    _XStoreEventCookie(dpy, &qelt->event);
-		qelt = qelt->next;
-	    }
-        }
-	if (dpy->cookiejar)
-	    _XFreeEventCookies(dpy);
-	while (dpy->ext_procs) {
-	    _XExtension *ext = dpy->ext_procs;
-	    dpy->ext_procs = ext->next;
-	    if (ext->name)
-		Xfree (ext->name);
-	    Xfree ((char *)ext);
-	}
-	if (dpy->im_filters)
-	   (*dpy->free_funcs->im_filters)(dpy);
-	if (dpy->cms.clientCmaps)
-	   (*dpy->free_funcs->clientCmaps)(dpy);
-	if (dpy->cms.defaultCCCs)
-	   (*dpy->free_funcs->defaultCCCs)(dpy);
-	if (dpy->cms.perVisualIntensityMaps)
-	   (*dpy->free_funcs->intensityMaps)(dpy);
-	if (dpy->atoms)
-	    (*dpy->free_funcs->atoms)(dpy);
-	if (dpy->modifiermap)
-	   (*dpy->free_funcs->modifiermap)(dpy->modifiermap);
-	if (dpy->key_bindings)
-	   (*dpy->free_funcs->key_bindings)(dpy);
-	if (dpy->context_db)
-	   (*dpy->free_funcs->context_db)(dpy);
-	if (dpy->xkb_info)
-	   (*dpy->free_funcs->xkb)(dpy);
-
-	/* if RM database was allocated by XGetDefault() free it */
-	if (dpy->db && (dpy->flags & XlibDisplayDfltRMDB))
-	    XrmDestroyDatabase(dpy->db);
-
-	if (dpy->screens) {
-	    register int i;
-
-            for (i = 0; i < dpy->nscreens; i++) {
-		Screen *sp = &dpy->screens[i];
-
-		if (sp->depths) {
-		   register int j;
-
-		   for (j = 0; j < sp->ndepths; j++) {
-			Depth *dp = &sp->depths[j];
-
-			if (dp->visuals) {
-			   register int k;
-
-			   for (k = 0; k < dp->nvisuals; k++)
-			     _XFreeExtData (dp->visuals[k].ext_data);
-			   Xfree ((char *) dp->visuals);
-			   }
-			}
-
-		   Xfree ((char *) sp->depths);
-		   }
-
-		_XFreeExtData (sp->ext_data);
-		}
-
-	    Xfree ((char *)dpy->screens);
-	    }
-
-	if (dpy->pixmap_format) {
-	    register int i;
-
-	    for (i = 0; i < dpy->nformats; i++)
-	      _XFreeExtData (dpy->pixmap_format[i].ext_data);
-            Xfree ((char *)dpy->pixmap_format);
-	    }
-
-	if (dpy->display_name)
-	   Xfree (dpy->display_name);
-	if (dpy->vendor)
-	   Xfree (dpy->vendor);
-
-        if (dpy->buffer)
-	   Xfree (dpy->buffer);
-	if (dpy->keysyms)
-	   Xfree ((char *) dpy->keysyms);
-	if (dpy->xdefaults)
-	   Xfree (dpy->xdefaults);
-	if (dpy->error_vec)
-	    Xfree ((char *)dpy->error_vec);
-
-	_XFreeExtData (dpy->ext_data);
-	if (dpy->free_funcs)
-	    Xfree ((char *)dpy->free_funcs);
- 	if (dpy->scratch_buffer)
- 	    Xfree (dpy->scratch_buffer);
-	FreeDisplayLock(dpy);
-
-	if (dpy->qfree) {
-	    register _XQEvent *qelt = dpy->qfree;
-
-	    while (qelt) {
-		register _XQEvent *qnxt = qelt->next;
-		Xfree ((char *) qelt);
-		qelt = qnxt;
-	    }
-	}
-	while (dpy->im_fd_info) {
-	    struct _XConnectionInfo *conni = dpy->im_fd_info;
-	    dpy->im_fd_info = conni->next;
-	    if (conni->watch_data)
-		Xfree (conni->watch_data);
-	    Xfree (conni);
-	}
-	if (dpy->conn_watchers) {
-	    struct _XConnWatchInfo *watcher = dpy->conn_watchers;
-	    dpy->conn_watchers = watcher->next;
-	    Xfree (watcher);
-	}
-	if (dpy->filedes)
-	    Xfree (dpy->filedes);
-
-#if USE_XCB
-	_XFreeX11XCBStructure(dpy);
-#endif /* USE_XCB */
-
-	Xfree ((char *)dpy);
-}
-
-/* OutOfMemory is called if malloc fails.  XOpenDisplay returns NULL
-   after this returns. */
-
-static void OutOfMemory(Display *dpy, char *setup)
-{
-#if USE_XCB
-    if(dpy->xcb->connection)
-	xcb_disconnect(dpy->xcb->connection);
-#else /* !USE_XCB */
-    _XDisconnectDisplay (dpy->trans_conn);
-#endif /* USE_XCB */
-    _XFreeDisplayStructure (dpy);
-#if !USE_XCB
-    if (setup) Xfree (setup);
-#endif /* !USE_XCB */
-}
+/*

+

+Copyright 1985, 1986, 1998  The Open Group

+

+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.

+

+The above copyright notice and this permission notice shall be included in

+all copies or substantial portions of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE

+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+

+Except as contained in this notice, the name of The Open Group shall not be

+used in advertising or otherwise to promote the sale, use or other dealings

+in this Software without prior written authorization from The Open Group.

+

+*/

+

+#define NEED_REPLIES

+#define NEED_EVENTS

+#ifdef HAVE_CONFIG_H

+#include <config.h>

+#endif

+#include "Xlibint.h"

+#if USE_XCB

+#include "Xxcbint.h"

+#else /* !USE_XCB */

+#include <X11/Xtrans/Xtrans.h>

+#include <X11/extensions/bigreqstr.h>

+#endif /* USE_XCB */

+#include <X11/Xatom.h>

+#include <X11/Xresource.h>

+#include <stdio.h>

+#include "Xintconn.h"

+

+#ifdef XKB

+#include "XKBlib.h"

+#endif /* XKB */

+

+#if !USE_XCB

+#ifdef X_NOT_POSIX

+#define Size_t unsigned int

+#else

+#define Size_t size_t

+#endif

+

+#define bignamelen (sizeof(XBigReqExtensionName) - 1)

+

+typedef struct {

+    unsigned long seq;

+    int opcode;

+} _XBigReqState;

+#endif /* !USE_XCB */

+

+#ifdef XTHREADS

+#include "locking.h"

+int  (*_XInitDisplayLock_fn)(Display *dpy) = NULL;

+void (*_XFreeDisplayLock_fn)(Display *dpy) = NULL;

+

+#define InitDisplayLock(d)	(_XInitDisplayLock_fn ? (*_XInitDisplayLock_fn)(d) : Success)

+#define FreeDisplayLock(d)	if (_XFreeDisplayLock_fn) (*_XFreeDisplayLock_fn)(d)

+#else

+#define InitDisplayLock(dis) Success

+#define FreeDisplayLock(dis)

+#endif /* XTHREADS */

+

+static xReq _dummy_request = {

+	0, 0, 0

+};

+

+static void OutOfMemory(Display *dpy, char *setup);

+#if !USE_XCB

+static Bool _XBigReqHandler(Display *dpy, xReply *rep, char *buf, int len,

+				XPointer data);

+#endif /* !USE_XCB */

+

+/*

+ * Connects to a server, creates a Display object and returns a pointer to

+ * the newly created Display back to the caller.

+ */

+Display *

+XOpenDisplay (

+	register _Xconst char *display)

+{

+	register Display *dpy;		/* New Display object being created. */

+	register int i;

+	int j, k;			/* random iterator indexes */

+	char *display_name;		/* pointer to display name */

+#if !USE_XCB

+	int endian;			/* to determine which endian. */

+	xConnClientPrefix client;	/* client information */

+	int idisplay;			/* display number */

+	int prefixread = 0;             /* setup prefix already read? */

+	char *conn_auth_name, *conn_auth_data;

+	int conn_auth_namelen, conn_auth_datalen;

+#endif /* !USE_XCB */

+	char *setup = NULL;		/* memory allocated at startup */

+	char *fullname = NULL;		/* expanded name of display */

+	int iscreen;			/* screen number */

+	xConnSetupPrefix prefix;	/* prefix information */

+	int vendorlen;			/* length of vendor string */

+	union {

+		xConnSetup *setup;

+		char *failure;

+		char *vendor;

+		xPixmapFormat *sf;

+		xWindowRoot *rp;

+		xDepth *dp;

+		xVisualType *vp;

+	} u;				/* proto data returned from server */

+	long setuplength;	/* number of bytes in setup message */

+	long usedbytes = 0;     /* number of bytes we have processed */

+	unsigned long mask;

+	long int conn_buf_size;

+	char *xlib_buffer_size;

+

+#if !USE_XCB

+	bzero((char *) &client, sizeof(client));

+	bzero((char *) &prefix, sizeof(prefix));

+#endif /* !USE_XCB */

+

+	/*

+	 * If the display specifier string supplied as an argument to this

+	 * routine is NULL or a pointer to NULL, read the DISPLAY variable.

+	 */

+	if (display == NULL || *display == '\0') {

+		if ((display_name = getenv("DISPLAY")) == NULL) {

+			/* Oops! No DISPLAY environment variable - error. */

+			return(NULL);

+		}

+	}

+	else {

+		/* Display is non-NULL, copy the pointer */

+		display_name = (char *)display;

+	}

+

+/*

+ * Set the default error handlers.  This allows the global variables to

+ * default to NULL for use with shared libraries.

+ */

+	if (_XErrorFunction == NULL) (void) XSetErrorHandler (NULL);

+	if (_XIOErrorFunction == NULL) (void) XSetIOErrorHandler (NULL);

+

+/*

+ * Attempt to allocate a display structure. Return NULL if allocation fails.

+ */

+	if ((dpy = (Display *)Xcalloc(1, sizeof(Display))) == NULL) {

+		return(NULL);

+	}

+

+/*

+ * Call the Connect routine to get the transport connection object.

+ * If NULL is returned, the connection failed. The connect routine

+ * will set fullname to point to the expanded name.

+ */

+

+#if USE_XCB

+	if(!_XConnectXCB(dpy, display, &fullname, &iscreen)) {

+		/* Try falling back on other transports if no transport specified */

+		const char *slash = strrchr(display_name, '/');

+		if(slash == NULL) {

+			const char *protocols[] = {"local", "unix", "tcp", "inet6", "inet", NULL};

+			const char **s;

+			size_t buf_size = strlen(display_name) + 7; // max strlen + 2 (null + /)

+			char *buf = Xmalloc(buf_size * sizeof(char));

+

+			if(buf) {

+				for(s = protocols; buf && *s; s++) {

+					snprintf(buf, buf_size, "%s/%s", *s, display_name);

+					if(_XConnectXCB(dpy, buf, &fullname, &iscreen))

+						goto fallback_success;

+				}

+				Xfree(buf);

+			}

+		}

+

+		dpy->display_name = fullname;

+		OutOfMemory(dpy, NULL);

+		return NULL;

+	}

+fallback_success:

+#else /* !USE_XCB */

+	if ((dpy->trans_conn = _X11TransConnectDisplay (

+					 display_name, &fullname, &idisplay,

+					 &iscreen, &conn_auth_name,

+					 &conn_auth_namelen, &conn_auth_data,

+					 &conn_auth_datalen)) == NULL) {

+		Xfree ((char *) dpy);

+		return(NULL);

+	}

+

+	dpy->fd = _X11TransGetConnectionNumber (dpy->trans_conn);

+#endif /* USE_XCB */

+

+	/* Initialize as much of the display structure as we can.

+	 * Initialize pointers to NULL so that XFreeDisplayStructure will

+	 * work if we run out of memory before we finish initializing.

+	 */

+	dpy->display_name	= fullname;

+	dpy->keysyms		= (KeySym *) NULL;

+	dpy->modifiermap	= NULL;

+	dpy->lock_meaning	= NoSymbol;

+	dpy->keysyms_per_keycode = 0;

+	dpy->xdefaults		= (char *)NULL;

+	dpy->scratch_length	= 0L;

+	dpy->scratch_buffer	= NULL;

+	dpy->key_bindings	= NULL;

+	dpy->ext_procs		= (_XExtension *)NULL;

+	dpy->ext_data		= (XExtData *)NULL;

+	dpy->ext_number 	= 0;

+	dpy->event_vec[X_Error] = _XUnknownWireEvent;

+	dpy->event_vec[X_Reply] = _XUnknownWireEvent;

+	dpy->wire_vec[X_Error]  = _XUnknownNativeEvent;

+	dpy->wire_vec[X_Reply]  = _XUnknownNativeEvent;

+	for (i = KeyPress; i < LASTEvent; i++) {

+	    dpy->event_vec[i] 	= _XWireToEvent;

+	    dpy->wire_vec[i] 	= NULL;

+	}

+	for (i = LASTEvent; i < 128; i++) {

+	    dpy->event_vec[i] 	= _XUnknownWireEvent;

+	    dpy->wire_vec[i] 	= _XUnknownNativeEvent;

+	}

+	dpy->resource_id	= 0;

+	dpy->db 		= (struct _XrmHashBucketRec *)NULL;

+	dpy->cursor_font	= None;

+	dpy->flags		= 0;

+	dpy->async_handlers	= NULL;

+	dpy->screens		= NULL;

+	dpy->vendor		= NULL;

+	dpy->buffer		= NULL;

+	dpy->atoms		= NULL;

+	dpy->error_vec		= NULL;

+	dpy->context_db		= NULL;

+	dpy->free_funcs		= NULL;

+	dpy->pixmap_format	= NULL;

+	dpy->cms.clientCmaps	= NULL;

+	dpy->cms.defaultCCCs	= NULL;

+	dpy->cms.perVisualIntensityMaps = NULL;

+	dpy->im_filters		= NULL;

+ 	dpy->bigreq_size	= 0;

+	dpy->lock		= NULL;

+	dpy->lock_fns		= NULL;

+	dpy->qfree		= NULL;

+	dpy->next_event_serial_num = 1;

+	dpy->im_fd_info		= NULL;

+	dpy->im_fd_length	= 0;

+	dpy->conn_watchers	= NULL;

+	dpy->watcher_count	= 0;

+	dpy->filedes		= NULL;

+	dpy->flushes		= NULL;

+	dpy->xcmisc_opcode	= 0;

+	dpy->xkb_info		= NULL;

+

+/*

+ * Setup other information in this display structure.

+ */

+	dpy->vnumber = X_PROTOCOL;

+	dpy->resource_alloc = _XAllocID;

+	dpy->idlist_alloc = _XAllocIDs;

+	dpy->synchandler = NULL;

+	dpy->savedsynchandler = NULL;

+	dpy->request = 0;

+	dpy->last_request_read = 0;

+	dpy->default_screen = iscreen;  /* Value returned by ConnectDisplay */

+	dpy->last_req = (char *)&_dummy_request;

+

+	/* Initialize the display lock */

+	if (InitDisplayLock(dpy) != 0) {

+	        OutOfMemory (dpy, setup);

+		return(NULL);

+	}

+

+	if (!_XPollfdCacheInit(dpy)) {

+	        OutOfMemory (dpy, setup);

+		return(NULL);

+	}

+

+	/* Set up the output buffers. */

+#ifndef XLIBDEFAULTBUFSIZE

+#define XLIBDEFAULTBUFSIZE 16384 /* 16k */

+#endif

+#ifndef XLIBMINBUFSIZE

+#define XLIBMINBUFSIZE BUFSIZE /* old default buffer size */

+#endif

+	xlib_buffer_size = getenv("XLIBBUFFERSIZE");

+

+#ifdef __sun /* Backwards compatibility for old Solaris libX11 name */

+	if (xlib_buffer_size == NULL)

+	    xlib_buffer_size = getenv("XSUNBUFFERSIZE");

+#endif

+

+	if (xlib_buffer_size == NULL)

+	    conn_buf_size = XLIBDEFAULTBUFSIZE;

+	else

+	    conn_buf_size = 1024 * strtol(xlib_buffer_size, NULL, 10);

+	if (conn_buf_size < XLIBMINBUFSIZE)

+	    conn_buf_size = XLIBMINBUFSIZE;

+

+	if ((dpy->bufptr = dpy->buffer = Xcalloc(1, conn_buf_size)) == NULL) {

+	    OutOfMemory (dpy, setup);

+	    return(NULL);

+	}

+	dpy->bufmax = dpy->buffer + conn_buf_size;

+#if USE_XCB

+	dpy->xcb->real_bufmax = dpy->bufmax;

+	dpy->bufmax = dpy->buffer;

+#endif

+

+	/* Set up the input event queue and input event queue parameters. */

+	dpy->head = dpy->tail = NULL;

+	dpy->qlen = 0;

+

+	/* Set up free-function record */

+	if ((dpy->free_funcs = (_XFreeFuncRec *)Xcalloc(1,

+							sizeof(_XFreeFuncRec)))

+	    == NULL) {

+	    OutOfMemory (dpy, setup);

+	    return(NULL);

+	}

+

+#if !USE_XCB

+/*

+ * The xConnClientPrefix describes the initial connection setup information

+ * and is followed by the authorization information.  Sites that are interested

+ * in security are strongly encouraged to use an authentication and

+ * authorization system such as Kerberos.

+ */

+	endian = 1;

+	if (*(char *) &endian)

+	    client.byteOrder = '\154'; /* 'l' */

+	else

+	    client.byteOrder = '\102'; /* 'B' */

+	client.majorVersion = X_PROTOCOL;

+	client.minorVersion = X_PROTOCOL_REVISION;

+	client.nbytesAuthProto = conn_auth_namelen;

+	client.nbytesAuthString = conn_auth_datalen;

+	prefixread = _XSendClientPrefix(dpy, &client,

+					conn_auth_name, conn_auth_data,

+					&prefix);

+	if (prefixread < 0)

+	{

+	    _XDisconnectDisplay (dpy->trans_conn);

+	    Xfree ((char *)dpy);

+	    return(NULL);

+	}

+	if (conn_auth_name) Xfree(conn_auth_name);

+	if (conn_auth_data) Xfree(conn_auth_data);

+/*

+ * Now see if connection was accepted...

+ */

+	/* these internal functions expect the display to be locked */

+	LockDisplay(dpy);

+

+	if (prefixread == 0)

+	    _XRead (dpy, (char *)&prefix,(long)SIZEOF(xConnSetupPrefix));

+

+	/* an Authenticate reply we weren't expecting? */

+	if (prefix.success != xTrue && prefix.success != xFalse) {

+	    fprintf (stderr,

+      "Xlib: unexpected connection setup reply from server, type %d.\r\n",

+		     prefix.success);

+	    _XDisconnectDisplay (dpy->trans_conn);

+	    Xfree ((char *)dpy);

+	    return(NULL);

+	}

+

+	if (prefix.majorVersion != X_PROTOCOL) {

+	    /* XXX - printing messages marks a bad programming interface */

+	    fprintf (stderr,

+     "Xlib: client uses different protocol version (%d) than server (%d)!\r\n",

+		     X_PROTOCOL, prefix.majorVersion);

+	    _XDisconnectDisplay (dpy->trans_conn);

+	    Xfree ((char *)dpy);

+	    return(NULL);

+	}

+#endif /* !USE_XCB */

+

+#if USE_XCB

+	{

+		const struct xcb_setup_t *xcbsetup = xcb_get_setup(dpy->xcb->connection);

+		memcpy(&prefix, xcbsetup, sizeof(prefix));

+		setuplength = prefix.length << 2;

+		setup = (char *) xcbsetup;

+		setup += SIZEOF(xConnSetupPrefix);

+		u.setup = (xConnSetup *) setup;

+	}

+#else /* !USE_XCB */

+	setuplength = prefix.length << 2;

+	if ( (u.setup = (xConnSetup *)

+	      (setup =  Xmalloc ((unsigned) setuplength))) == NULL) {

+		_XDisconnectDisplay (dpy->trans_conn);

+		Xfree ((char *)dpy);

+		return(NULL);

+	}

+	_XRead (dpy, (char *)u.setup, setuplength);

+

+/*

+ * If the connection was not accepted by the server due to problems,

+ * give error message to the user....

+ */

+	if (prefix.success != xTrue) {

+		/* XXX - printing messages marks a bad programming interface */

+		fprintf (stderr,

+		      "Xlib: connection to \"%s\" refused by server\r\nXlib: ",

+			 fullname);

+

+		if (prefix.lengthReason > setuplength) {

+		    fprintf (stderr, "Xlib: Broken initial reply: length of reason > length of packet\r\n");

+		}else{

+		    (void) fwrite (u.failure, (Size_t)sizeof(char),

+			       (Size_t)prefix.lengthReason, stderr);

+		    (void) fwrite ("\r\n", sizeof(char), 2, stderr);

+		}

+

+		OutOfMemory(dpy, setup);

+		return (NULL);

+	}

+#endif /* USE_XCB */

+

+/*

+ * Check if the reply was long enough to get any information out of it.

+ */

+	usedbytes = sz_xConnSetup;

+	if (setuplength < usedbytes ) {

+	    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);

+	    OutOfMemory(dpy, setup);

+	    return (NULL);

+	}

+

+/*

+ * We succeeded at authorization, so let us move the data into

+ * the display structure.

+ */

+	dpy->proto_major_version= prefix.majorVersion;

+	dpy->proto_minor_version= prefix.minorVersion;

+	dpy->release 		= u.setup->release;

+	dpy->resource_base	= u.setup->ridBase;

+	dpy->resource_mask	= u.setup->ridMask;

+	dpy->min_keycode	= u.setup->minKeyCode;

+	dpy->max_keycode	= u.setup->maxKeyCode;

+	dpy->motion_buffer	= u.setup->motionBufferSize;

+	dpy->nformats		= u.setup->numFormats;

+	dpy->nscreens		= u.setup->numRoots;

+	dpy->byte_order		= u.setup->imageByteOrder;

+	dpy->bitmap_unit	= u.setup->bitmapScanlineUnit;

+	dpy->bitmap_pad		= u.setup->bitmapScanlinePad;

+	dpy->bitmap_bit_order   = u.setup->bitmapBitOrder;

+	dpy->max_request_size	= u.setup->maxRequestSize;

+	mask = dpy->resource_mask;

+	dpy->resource_shift	= 0;

+	if (!mask)

+	{

+	    fprintf (stderr, "Xlib: connection to \"%s\" invalid setup\n",

+		     fullname);

+	    OutOfMemory(dpy, setup);

+	    return (NULL);

+	}

+

+	while (!(mask & 1)) {

+	    dpy->resource_shift++;

+	    mask = mask >> 1;

+	}

+	dpy->resource_max = (dpy->resource_mask >> dpy->resource_shift) - 5;

+/*

+ * now extract the vendor string...  String must be null terminated,

+ * padded to multiple of 4 bytes.

+ */

+	/* Check for a sane vendor string length */

+	if (u.setup->nbytesVendor > 256) {

+	    OutOfMemory(dpy, setup);

+	    return (NULL);

+	}

+

+	dpy->vendor = (char *) Xmalloc((unsigned) (u.setup->nbytesVendor + 1));

+	if (dpy->vendor == NULL) {

+	    OutOfMemory(dpy, setup);

+	    return (NULL);

+	}

+	vendorlen = u.setup->nbytesVendor;

+

+/*

+ * validate setup length

+ */

+	usedbytes += (vendorlen + 3) & ~3;

+	if (setuplength < usedbytes) {

+	    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);

+	    OutOfMemory(dpy, setup);

+	    return (NULL);

+	}

+

+ 	u.setup = (xConnSetup *) (((char *) u.setup) + sz_xConnSetup);

+  	(void) strncpy(dpy->vendor, u.vendor, vendorlen);

+	dpy->vendor[vendorlen] = '\0';

+ 	vendorlen = (vendorlen + 3) & ~3;	/* round up */

+	u.vendor += vendorlen;

+

+/*

+ * Now iterate down setup information.....

+ */

+	dpy->pixmap_format =

+	    (ScreenFormat *)Xmalloc(

+		(unsigned) (dpy->nformats *sizeof(ScreenFormat)));

+	if (dpy->pixmap_format == NULL) {

+	        OutOfMemory (dpy, setup);

+		return(NULL);

+	}

+/*

+ * First decode the Z axis Screen format information.

+ */

+	usedbytes += dpy->nformats * sz_xPixmapFormat;

+

+	if (setuplength < usedbytes) {

+	    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);

+	    OutOfMemory (dpy, setup);

+	    return(NULL);

+	}

+

+	for (i = 0; i < dpy->nformats; i++) {

+	    register ScreenFormat *fmt = &dpy->pixmap_format[i];

+	    fmt->depth = u.sf->depth;

+	    fmt->bits_per_pixel = u.sf->bitsPerPixel;

+	    fmt->scanline_pad = u.sf->scanLinePad;

+	    fmt->ext_data = NULL;

+	    u.sf = (xPixmapFormat *) (((char *) u.sf) + sz_xPixmapFormat);

+	}

+

+/*

+ * next the Screen structures.

+ */

+	dpy->screens =

+	    (Screen *)Xmalloc((unsigned) dpy->nscreens*sizeof(Screen));

+	if (dpy->screens == NULL) {

+	        OutOfMemory (dpy, setup);

+		return(NULL);

+	}

+

+/*

+ * Now go deal with each screen structure.

+ */

+	for (i = 0; i < dpy->nscreens; i++) {

+	    register Screen *sp = &dpy->screens[i];

+	    VisualID root_visualID;

+

+	    usedbytes += sz_xWindowRoot;

+	    if (setuplength < usedbytes) {

+		fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);

+		OutOfMemory (dpy, setup);

+		return(NULL);

+	    }

+

+	    root_visualID = u.rp->rootVisualID;

+	    sp->display	    = dpy;

+	    sp->root 	    = u.rp->windowId;

+	    sp->cmap 	    = u.rp->defaultColormap;

+	    sp->white_pixel = u.rp->whitePixel;

+	    sp->black_pixel = u.rp->blackPixel;

+	    sp->root_input_mask = u.rp->currentInputMask;

+	    sp->width	    = u.rp->pixWidth;

+	    sp->height	    = u.rp->pixHeight;

+	    sp->mwidth	    = u.rp->mmWidth;

+	    sp->mheight	    = u.rp->mmHeight;

+	    sp->min_maps    = u.rp->minInstalledMaps;

+	    sp->max_maps    = u.rp->maxInstalledMaps;

+	    sp->backing_store= u.rp->backingStore;

+	    sp->save_unders = u.rp->saveUnders;

+	    sp->root_depth  = u.rp->rootDepth;

+	    sp->ndepths	    = u.rp->nDepths;

+	    sp->ext_data   = NULL;

+	    u.rp = (xWindowRoot *) (((char *) u.rp) + sz_xWindowRoot);

+/*

+ * lets set up the depth structures.

+ */

+	    sp->depths = (Depth *)Xmalloc(

+			(unsigned)sp->ndepths*sizeof(Depth));

+	    if (sp->depths == NULL) {

+		OutOfMemory (dpy, setup);

+		return(NULL);

+	    }

+	    /*

+	     * for all depths on this screen.

+	     */

+	    for (j = 0; j < sp->ndepths; j++) {

+		Depth *dp = &sp->depths[j];

+

+		usedbytes += sz_xDepth;

+		if (setuplength < usedbytes) {

+		    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);

+		    OutOfMemory (dpy, setup);

+		    return(NULL);

+		}

+

+		dp->depth = u.dp->depth;

+		dp->nvisuals = u.dp->nVisuals;

+		u.dp = (xDepth *) (((char *) u.dp) + sz_xDepth);

+		if (dp->nvisuals > 0) {

+		    dp->visuals =

+		      (Visual *)Xmalloc((unsigned)dp->nvisuals*sizeof(Visual));

+		    if (dp->visuals == NULL) {

+			OutOfMemory (dpy, setup);

+			return(NULL);

+		    }

+		    for (k = 0; k < dp->nvisuals; k++) {

+			register Visual *vp = &dp->visuals[k];

+

+			usedbytes += sz_xVisualType;

+			if (setuplength < usedbytes) {

+			    fprintf (stderr, "Xlib: Broken initial reply: Too short (%ld)\n", setuplength);

+			    OutOfMemory (dpy, setup);

+			    return(NULL);

+			}

+

+			vp->visualid	= u.vp->visualID;

+			vp->class	= u.vp->class;

+			vp->bits_per_rgb= u.vp->bitsPerRGB;

+			vp->map_entries	= u.vp->colormapEntries;

+			vp->red_mask	= u.vp->redMask;

+			vp->green_mask	= u.vp->greenMask;

+			vp->blue_mask	= u.vp->blueMask;

+			vp->ext_data	= NULL;

+			u.vp = (xVisualType *) (((char *) u.vp) +

+						sz_xVisualType);

+		    }

+		    if (dp->depth == 32 && getenv ("XLIB_SKIP_ARGB_VISUALS"))

+		    {

+			Xfree (dp->visuals);

+			dp->visuals = NULL;

+			dp->nvisuals = 0;

+		    }

+		} else {

+		    dp->visuals = (Visual *) NULL;

+		}

+	    }

+	    sp->root_visual = _XVIDtoVisual(dpy, root_visualID);

+	}

+

+	if(usedbytes != setuplength){

+	    /* Sanity check, shouldn't happen. */

+	    fprintf(stderr, "Xlib: Did not parse entire setup message: "

+	                    "parsed: %ld, message: %ld\n",

+		    usedbytes, setuplength);

+	    OutOfMemory(dpy, setup);

+	    return(NULL);

+	}

+

+/*

+ * Now start talking to the server to setup all other information...

+ */

+

+#if !USE_XCB

+	Xfree (setup);	/* all finished with setup information */

+#endif /* !USE_XCB */

+

+/*

+ * Make sure default screen is legal.

+ */

+	if (iscreen >= dpy->nscreens) {

+	    OutOfMemory(dpy, (char *) NULL);

+	    return(NULL);

+	}

+

+#if !USE_XCB

+/*

+ * finished calling internal routines, now unlock for external routines

+ */

+	UnlockDisplay(dpy);

+#endif /* !USE_XCB */

+

+#if USE_XCB

+	dpy->bigreq_size = xcb_get_maximum_request_length(dpy->xcb->connection);

+	if(dpy->bigreq_size <= dpy->max_request_size)

+		dpy->bigreq_size = 0;

+#endif /* USE_XCB */

+

+/*

+ * Set up other stuff clients are always going to use.

+ */

+	for (i = 0; i < dpy->nscreens; i++) {

+	    register Screen *sp = &dpy->screens[i];

+	    XGCValues values;

+	    values.foreground = sp->black_pixel;

+	    values.background = sp->white_pixel;

+	    if ((sp->default_gc = XCreateGC (dpy, sp->root,

+					     GCForeground|GCBackground,

+					     &values)) == NULL) {

+		OutOfMemory(dpy, (char *) NULL);

+		return (NULL);

+	    }

+	}

+/*

+ * call into synchronization routine so that all programs can be

+ * forced synchronous

+ */

+	(void) XSynchronize(dpy, _Xdebug);

+

+/*

+ * get availability of large requests, and

+ * get the resource manager database off the root window.

+ */

+	LockDisplay(dpy);

+	{

+	    xGetPropertyReply reply;

+	    xGetPropertyReq *req;

+#if !USE_XCB

+	    _XAsyncHandler async;

+	    _XBigReqState async_state;

+	    xQueryExtensionReq *qreq;

+	    xBigReqEnableReq *breq;

+	    xBigReqEnableReply brep;

+

+	    GetReq(QueryExtension, qreq);

+	    async_state.seq = dpy->request;

+	    async_state.opcode = 0;

+	    async.next = dpy->async_handlers;

+	    async.handler = _XBigReqHandler;

+	    async.data = (XPointer)&async_state;

+	    dpy->async_handlers = &async;

+	    qreq->nbytes = bignamelen;

+	    qreq->length += (bignamelen+3)>>2;

+	    Data(dpy, XBigReqExtensionName, bignamelen);

+#endif /* !USE_XCB */

+

+	    GetReq (GetProperty, req);

+	    req->window = RootWindow(dpy, 0);

+	    req->property = XA_RESOURCE_MANAGER;

+	    req->type = XA_STRING;

+	    req->delete = False;

+	    req->longOffset = 0;

+	    req->longLength = 100000000L;

+

+	    if (_XReply (dpy, (xReply *) &reply, 0, xFalse)) {

+		if (reply.format == 8 && reply.propertyType == XA_STRING &&

+		    (reply.nItems + 1 > 0) &&

+		    (reply.nItems <= req->longLength * 4) &&

+		    (dpy->xdefaults = Xmalloc (reply.nItems + 1))) {

+		    _XReadPad (dpy, dpy->xdefaults, reply.nItems);

+		    dpy->xdefaults[reply.nItems] = '\0';

+		}

+		else if (reply.propertyType != None)

+		    _XEatData(dpy, reply.nItems * (reply.format >> 3));

+	    }

+#if !USE_XCB

+	    DeqAsyncHandler(dpy, &async);

+	    if (async_state.opcode) {

+		GetReq(BigReqEnable, breq);

+		breq->reqType = async_state.opcode;

+		breq->brReqType = X_BigReqEnable;

+		if (_XReply(dpy, (xReply *)&brep, 0, xFalse))

+		    dpy->bigreq_size = brep.max_request_size;

+	    }

+#endif /* !USE_XCB */

+	}

+	UnlockDisplay(dpy);

+

+#ifdef MOTIFBC

+	{

+	    extern Display *_XHeadOfDisplayList;

+	    _XHeadOfDisplayList = dpy;

+	}

+#endif

+#ifdef XKB

+	XkbUseExtension(dpy,NULL,NULL);

+#endif

+/*

+ * and return successfully

+ */

+ 	return(dpy);

+}

+

+#if !USE_XCB

+static Bool

+_XBigReqHandler(

+    register Display *dpy,

+    register xReply *rep,

+    char *buf,

+    int len,

+    XPointer data)

+{

+    _XBigReqState *state;

+    xQueryExtensionReply replbuf;

+    xQueryExtensionReply *repl;

+

+    state = (_XBigReqState *)data;

+    if (dpy->last_request_read != state->seq)

+	return False;

+    if (rep->generic.type == X_Error)

+	return True;

+    repl = (xQueryExtensionReply *)

+	_XGetAsyncReply(dpy, (char *)&replbuf, rep, buf, len,

+			(SIZEOF(xQueryExtensionReply) - SIZEOF(xReply)) >> 2,

+			True);

+    if (repl->present)

+	state->opcode = repl->major_opcode;

+    return True;

+}

+#endif /* !USE_XCB */

+

+

+/* XFreeDisplayStructure frees all the storage associated with a

+ * Display.  It is used by XOpenDisplay if it runs out of memory,

+ * and also by XCloseDisplay.   It needs to check whether all pointers

+ * are non-NULL before dereferencing them, since it may be called

+ * by XOpenDisplay before the Display structure is fully formed.

+ * XOpenDisplay must be sure to initialize all the pointers to NULL

+ * before the first possible call on this.

+ */

+

+void _XFreeDisplayStructure(Display *dpy)

+{

+	/* move all cookies in the EQ to the jar, then free them. */

+	if (dpy->qfree) {

+	    _XQEvent *qelt = dpy->qfree;

+	    while (qelt) {

+		if (_XIsEventCookie(dpy, &qelt->event))

+		    _XStoreEventCookie(dpy, &qelt->event);

+		qelt = qelt->next;

+	    }

+        }

+	if (dpy->cookiejar)

+	    _XFreeEventCookies(dpy);

+	while (dpy->ext_procs) {

+	    _XExtension *ext = dpy->ext_procs;

+	    dpy->ext_procs = ext->next;

+	    if (ext->name)

+		Xfree (ext->name);

+	    Xfree ((char *)ext);

+	}

+	if (dpy->im_filters)

+	   (*dpy->free_funcs->im_filters)(dpy);

+	if (dpy->cms.clientCmaps)

+	   (*dpy->free_funcs->clientCmaps)(dpy);

+	if (dpy->cms.defaultCCCs)

+	   (*dpy->free_funcs->defaultCCCs)(dpy);

+	if (dpy->cms.perVisualIntensityMaps)

+	   (*dpy->free_funcs->intensityMaps)(dpy);

+	if (dpy->atoms)

+	    (*dpy->free_funcs->atoms)(dpy);

+	if (dpy->modifiermap)

+	   (*dpy->free_funcs->modifiermap)(dpy->modifiermap);

+	if (dpy->key_bindings)

+	   (*dpy->free_funcs->key_bindings)(dpy);

+	if (dpy->context_db)

+	   (*dpy->free_funcs->context_db)(dpy);

+	if (dpy->xkb_info)

+	   (*dpy->free_funcs->xkb)(dpy);

+

+	/* if RM database was allocated by XGetDefault() free it */

+	if (dpy->db && (dpy->flags & XlibDisplayDfltRMDB))

+	    XrmDestroyDatabase(dpy->db);

+

+	if (dpy->screens) {

+	    register int i;

+

+            for (i = 0; i < dpy->nscreens; i++) {

+		Screen *sp = &dpy->screens[i];

+

+		if (sp->depths) {

+		   register int j;

+

+		   for (j = 0; j < sp->ndepths; j++) {

+			Depth *dp = &sp->depths[j];

+

+			if (dp->visuals) {

+			   register int k;

+

+			   for (k = 0; k < dp->nvisuals; k++)

+			     _XFreeExtData (dp->visuals[k].ext_data);

+			   Xfree ((char *) dp->visuals);

+			   }

+			}

+

+		   Xfree ((char *) sp->depths);

+		   }

+

+		_XFreeExtData (sp->ext_data);

+		}

+

+	    Xfree ((char *)dpy->screens);

+	    }

+

+	if (dpy->pixmap_format) {

+	    register int i;

+

+	    for (i = 0; i < dpy->nformats; i++)

+	      _XFreeExtData (dpy->pixmap_format[i].ext_data);

+            Xfree ((char *)dpy->pixmap_format);

+	    }

+

+	if (dpy->display_name)

+	   Xfree (dpy->display_name);

+	if (dpy->vendor)

+	   Xfree (dpy->vendor);

+

+        if (dpy->buffer)

+	   Xfree (dpy->buffer);

+	if (dpy->keysyms)

+	   Xfree ((char *) dpy->keysyms);

+	if (dpy->xdefaults)

+	   Xfree (dpy->xdefaults);

+	if (dpy->error_vec)

+	    Xfree ((char *)dpy->error_vec);

+

+	_XFreeExtData (dpy->ext_data);

+	if (dpy->free_funcs)

+	    Xfree ((char *)dpy->free_funcs);

+ 	if (dpy->scratch_buffer)

+ 	    Xfree (dpy->scratch_buffer);

+	FreeDisplayLock(dpy);

+

+	if (dpy->qfree) {

+	    register _XQEvent *qelt = dpy->qfree;

+

+	    while (qelt) {

+		register _XQEvent *qnxt = qelt->next;

+		Xfree ((char *) qelt);

+		qelt = qnxt;

+	    }

+	}

+	while (dpy->im_fd_info) {

+	    struct _XConnectionInfo *conni = dpy->im_fd_info;

+	    dpy->im_fd_info = conni->next;

+	    if (conni->watch_data)

+		Xfree (conni->watch_data);

+	    Xfree (conni);

+	}

+	if (dpy->conn_watchers) {

+	    struct _XConnWatchInfo *watcher = dpy->conn_watchers;

+	    dpy->conn_watchers = watcher->next;

+	    Xfree (watcher);

+	}

+	if (dpy->filedes)

+	    Xfree (dpy->filedes);

+

+#if USE_XCB

+	_XFreeX11XCBStructure(dpy);

+#endif /* USE_XCB */

+

+	Xfree ((char *)dpy);

+}

+

+/* OutOfMemory is called if malloc fails.  XOpenDisplay returns NULL

+   after this returns. */

+

+static void OutOfMemory(Display *dpy, char *setup)

+{

+#if USE_XCB

+    if(dpy->xcb->connection)

+	xcb_disconnect(dpy->xcb->connection);

+#else /* !USE_XCB */

+    _XDisconnectDisplay (dpy->trans_conn);

+#endif /* USE_XCB */

+    _XFreeDisplayStructure (dpy);

+#if !USE_XCB

+    if (setup) Xfree (setup);

+#endif /* !USE_XCB */

+}