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Diffstat (limited to 'nx-X11/lib/src/OpenDis.c')
| -rw-r--r-- | nx-X11/lib/src/OpenDis.c | 990 |
1 files changed, 990 insertions, 0 deletions
diff --git a/nx-X11/lib/src/OpenDis.c b/nx-X11/lib/src/OpenDis.c new file mode 100644 index 000000000..965924650 --- /dev/null +++ b/nx-X11/lib/src/OpenDis.c @@ -0,0 +1,990 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ +/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ +/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ +/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ +/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ +/* */ +/* nx-X11, NX protocol compression and NX extensions to this software */ +/* are copyright of the aforementioned persons and companies. */ +/* */ +/* Redistribution and use of the present software is allowed according */ +/* to terms specified in the file LICENSE which comes in the source */ +/* distribution. */ +/* */ +/* All rights reserved. */ +/* */ +/* NOTE: This software has received contributions from various other */ +/* contributors, only the core maintainers and supporters are listed as */ +/* copyright holders. Please contact us, if you feel you should be listed */ +/* as copyright holder, as well. */ +/* */ +/**************************************************************************/ + +/* + +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. + +*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#if USE_XCB +#include "Xxcbint.h" +#else /* !USE_XCB */ +#include <nx-X11/Xtrans/Xtrans.h> +#include <nx-X11/extensions/bigreqstr.h> +#endif /* USE_XCB */ +#include <nx-X11/Xatom.h> +#include <nx-X11/Xresource.h> +#include <stdio.h> +#include "Xintconn.h" + +#ifdef XKB +#include "XKBlib.h" +#endif /* XKB */ + +#ifdef NX_TRANS_SOCKET +extern void *_X11TransSocketProxyConnInfo(XtransConnInfo); +#endif + +#if !USE_XCB +#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 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 = 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 */ + +#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 + 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 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; +#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 = 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 */ +#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); + } +#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 = Xmalloc(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 = Xcalloc(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 = Xcalloc(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 = Xcalloc(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 = Xcalloc(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 +/* + * get availability of large requests + */ + 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 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) + _XEatDataWords(dpy, reply.length); + } +#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 + */ +#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST) + fprintf(stderr, "XOpenDisplay: Returning display at [%p].\n", dpy); +#endif + 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; + Xfree (ext->name); + Xfree (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 (dp->visuals); + } + } + + Xfree (sp->depths); + } + + _XFreeExtData (sp->ext_data); + } + + Xfree (dpy->screens); + } + + if (dpy->pixmap_format) { + register int i; + + for (i = 0; i < dpy->nformats; i++) + _XFreeExtData (dpy->pixmap_format[i].ext_data); + Xfree (dpy->pixmap_format); + } + + free(dpy->display_name); + + Xfree (dpy->vendor); + Xfree (dpy->buffer); + Xfree (dpy->keysyms); + Xfree (dpy->xdefaults); + Xfree (dpy->error_vec); + + _XFreeExtData (dpy->ext_data); + + Xfree (dpy->free_funcs); + Xfree (dpy->scratch_buffer); + FreeDisplayLock(dpy); + + if (dpy->qfree) { + register _XQEvent *qelt = dpy->qfree; + + while (qelt) { + register _XQEvent *qnxt = qelt->next; + Xfree (qelt); + qelt = qnxt; + } + } + while (dpy->im_fd_info) { + struct _XConnectionInfo *conni = dpy->im_fd_info; + dpy->im_fd_info = conni->next; + Xfree (conni->watch_data); + Xfree (conni); + } + if (dpy->conn_watchers) { + struct _XConnWatchInfo *watcher = dpy->conn_watchers; + dpy->conn_watchers = watcher->next; + Xfree (watcher); + } + + Xfree (dpy->filedes); + +#if USE_XCB + _XFreeX11XCBStructure(dpy); +#endif /* USE_XCB */ + + Xfree (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 */ +} |