aboutsummaryrefslogtreecommitdiff
path: root/libX11/src/OpenDis.c
diff options
context:
space:
mode:
Diffstat (limited to 'libX11/src/OpenDis.c')
-rw-r--r--libX11/src/OpenDis.c1907
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 */
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 01:18:46 +0000