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+/* $Xorg: OpenDis.c,v 1.4 2001/02/09 02:03:34 xorgcvs Exp $ */
+/*
+
+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.
+
+*/
+
+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/. */
+/* */
+/* NX-X11, NX protocol compression and NX extensions to this software */
+/* are copyright of NoMachine. Redistribution and use of the present */
+/* software is allowed according to terms specified in the file LICENSE */
+/* which comes in the source distribution. */
+/* */
+/* Check http://www.nomachine.com/licensing.html for applicability. */
+/* */
+/* NX and NoMachine are trademarks of Medialogic S.p.A. */
+/* */
+/* All rights reserved. */
+/* */
+/**************************************************************************/
+
+/* $XFree86: xc/lib/X11/OpenDis.c,v 3.16 2003/07/04 16:24:23 eich Exp $ */
+
+#define NEED_REPLIES
+#define NEED_EVENTS
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include <X11/Xtrans/Xtrans.h>
+#include <X11/Xatom.h>
+#include <X11/Xresource.h>
+#include <X11/extensions/bigreqstr.h>
+#include <stdio.h>
+#include "Xintconn.h"
+
+#ifdef XKB
+#include "XKBlib.h"
+#endif /* XKB */
+
+#ifdef NX_TRANS_SOCKET
+extern void *_X11TransSocketProxyConnInfo(XtransConnInfo);
+#endif
+
+#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;
+
+#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);
+static Bool _XBigReqHandler(Display *dpy, xReply *rep, char *buf, int len,
+ XPointer data);
+
+/*
+ * 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 */
+ int endian; /* to determine which endian. */
+ xConnClientPrefix client; /* client information */
+ xConnSetupPrefix prefix; /* prefix information */
+ int vendorlen; /* length of vendor string */
+ char *setup = NULL; /* memory allocated at startup */
+ char *fullname = NULL; /* expanded name of display */
+ int idisplay; /* display number */
+ int iscreen; /* screen number */
+ int prefixread = 0; /* setup prefix already read? */
+ 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 */
+ char *conn_auth_name, *conn_auth_data;
+ int conn_auth_namelen, conn_auth_datalen;
+ unsigned long mask;
+ long int conn_buf_size;
+ char *xlib_buffer_size;
+
+ bzero((char *) &client, sizeof(client));
+ bzero((char *) &prefix, sizeof(prefix));
+
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST)
+ fprintf(stderr, "\nXOpenDisplay: Called with display [%s].\n", display);
+#endif
+ /*
+ * 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 ((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);
+
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST)
+ fprintf(stderr, "\nXOpenDisplay: Connected display with dpy->fd = [%d].\n", dpy->fd);
+#endif
+ /* 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
+ if ((xlib_buffer_size = getenv("XLIBBUFFERSIZE")) == 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 defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST)
+ fprintf (stderr, "Xlib: Running with XLIBBUFFERSIZE [%d] XLIBMINBUFSIZE [%d] "
+ "buffer size [%ld].\n", XLIBDEFAULTBUFSIZE, XLIBMINBUFSIZE, conn_buf_size);
+#endif
+
+ if ((dpy->bufptr = dpy->buffer = Xcalloc(1, conn_buf_size)) == NULL) {
+ OutOfMemory (dpy, setup);
+ return(NULL);
+ }
+ dpy->bufmax = dpy->buffer + conn_buf_size;
+
+ /* 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);
+ }
+
+/*
+ * 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 */
+#ifdef NX_TRANS_SOCKET
+ if (_X11TransSocketProxyConnInfo(dpy->trans_conn) == NULL) {
+ fprintf (stderr, "Xlib: client uses different protocol version (%d) "
+ "than server (%d)!\r\n", X_PROTOCOL, prefix.majorVersion);
+ }
+#else
+ fprintf (stderr,
+ "Xlib: client uses different protocol version (%d) than server (%d)!\r\n",
+ X_PROTOCOL, prefix.majorVersion);
+#endif
+ _XDisconnectDisplay (dpy->trans_conn);
+ Xfree ((char *)dpy);
+ return(NULL);
+ }
+
+ 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);
+ }
+
+/*
+ * 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 */
+
+
+ memmove (setup, u.vendor + vendorlen,
+ (int) setuplength - sz_xConnSetup - vendorlen);
+ u.vendor = setup;
+/*
+ * 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...
+ */
+
+ Xfree (setup); /* all finished with setup information */
+
+/*
+ * Make sure default screen is legal.
+ */
+ if (iscreen >= dpy->nscreens) {
+ OutOfMemory(dpy, (char *) NULL);
+ return(NULL);
+ }
+
+/*
+ * finished calling internal routines, now unlock for external routines
+ */
+ UnlockDisplay(dpy);
+
+/*
+ * 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);
+ {
+ _XAsyncHandler async;
+ _XBigReqState async_state;
+ xQueryExtensionReq *qreq;
+ xGetPropertyReply reply;
+ xGetPropertyReq *req;
+ 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);
+
+ 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));
+ }
+ 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;
+ }
+ }
+ UnlockDisplay(dpy);
+
+#ifdef MOTIFBC
+ {
+ extern Display *_XHeadOfDisplayList;
+ _XHeadOfDisplayList = dpy;
+ }
+#endif
+#ifdef XKB
+ XkbUseExtension(dpy,NULL,NULL);
+#endif
+/*
+ * and return successfully
+ */
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST)
+ fprintf(stderr, "XOpenDisplay: Returning display at [%p].\n", dpy);
+#endif
+ return(dpy);
+}
+
+static Bool
+_XBigReqHandler(dpy, rep, buf, len, data)
+ 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;
+}
+
+
+/* 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(dpy)
+ register Display *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);
+
+ Xfree ((char *)dpy);
+}
+
+/* OutOfMemory is called if malloc fails. XOpenDisplay returns NULL
+ after this returns. */
+
+static void OutOfMemory (dpy, setup)
+ Display *dpy;
+ char *setup;
+{
+ _XDisconnectDisplay (dpy->trans_conn);
+ _XFreeDisplayStructure (dpy);
+ if (setup) Xfree (setup);
+}