Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 734 insertions, 0 deletions

diff --git a/nx-X11/lib/X11/Font.c b/nx-X11/lib/X11/Font.c
new file mode 100644
index 000000000..c37617cf9
--- /dev/null
+++ b/nx-X11/lib/X11/Font.c
@@ -0,0 +1,734 @@
+/* $Xorg: Font.c,v 1.4 2001/02/09 02:03:33 xorgcvs Exp $ */
+/*
+
+Copyright 1986, 1998  The Open Group
+Copyright (c) 2000  The XFree86 Project, Inc.
+
+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
+X CONSORTIUM OR THE XFREE86 PROJECT 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 X Consortium or of the
+XFree86 Project 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 X Consortium and the XFree86 Project.
+
+*/
+/* $XFree86: xc/lib/X11/Font.c,v 1.17 2003/04/13 19:22:16 dawes Exp $ */
+
+#define NEED_REPLIES
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+
+#if defined(XF86BIGFONT) && !defined(MUSTCOPY)
+#define USE_XF86BIGFONT
+#endif
+#ifdef USE_XF86BIGFONT
+#include <sys/types.h>
+#ifdef HAS_SHM
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <X11/extensions/xf86bigfstr.h>
+#endif
+
+#include "Xlcint.h"
+#include "XlcPubI.h"
+
+
+static XFontStruct *_XQueryFont(
+    Display*		/* dpy */,
+    Font		/* fid */,
+    unsigned long	/* seq */
+);
+
+#ifdef USE_XF86BIGFONT
+
+/* Private data for this extension. */
+typedef struct {
+    XExtCodes *codes;
+    CARD32 serverSignature;
+    CARD32 serverCapabilities;
+} XF86BigfontCodes;
+
+/* Additional bit masks that can be set in serverCapabilities */
+#define CAP_VerifiedLocal 256
+
+static XF86BigfontCodes *_XF86BigfontCodes(
+    Display*		/* dpy */
+);
+
+static XFontStruct *_XF86BigfontQueryFont(
+    Display*		/* dpy */,
+    XF86BigfontCodes*	/* extcodes */,
+    Font		/* fid */,
+    unsigned long	/* seq */
+);
+
+void _XF86BigfontFreeFontMetrics(
+    XFontStruct*	/* fs */
+);
+
+#endif /* USE_XF86BIGFONT */
+
+
+XFontStruct *XLoadQueryFont(
+   register Display *dpy,
+   _Xconst char *name)
+{
+    XFontStruct *font_result;
+    register long nbytes;
+    Font fid;
+    xOpenFontReq *req;
+    unsigned long seq;
+#ifdef USE_XF86BIGFONT
+    XF86BigfontCodes *extcodes = _XF86BigfontCodes(dpy);
+#endif
+
+    if (_XF86LoadQueryLocaleFont(dpy, name, &font_result, (Font *)0))
+      return font_result;
+    LockDisplay(dpy);
+    GetReq(OpenFont, req);
+    seq = dpy->request;
+    nbytes = req->nbytes  = name ? strlen(name) : 0;
+    req->fid = fid = XAllocID(dpy);
+    req->length += (nbytes+3)>>2;
+    Data (dpy, name, nbytes);
+    font_result = NULL;
+#ifdef USE_XF86BIGFONT
+    if (extcodes) {
+	font_result = _XF86BigfontQueryFont(dpy, extcodes, fid, seq);
+	seq = 0;
+    }
+#endif
+    if (!font_result)
+	font_result = _XQueryFont(dpy, fid, seq);
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return font_result;
+}
+
+XFontStruct *XQueryFont (dpy, fid)
+    register Display *dpy;
+    Font fid;
+{
+    XFontStruct *font_result;
+#ifdef USE_XF86BIGFONT
+    XF86BigfontCodes *extcodes = _XF86BigfontCodes(dpy);
+#endif
+
+    LockDisplay(dpy);
+    font_result = NULL;
+#ifdef USE_XF86BIGFONT
+    if (extcodes) {
+	font_result = _XF86BigfontQueryFont(dpy, extcodes, fid, 0L);
+    }
+#endif
+    if (!font_result)
+	font_result = _XQueryFont(dpy, fid, 0L);
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return font_result;
+}
+
+int
+XFreeFont(dpy, fs)
+    register Display *dpy;
+    XFontStruct *fs;
+{ 
+    register xResourceReq *req;
+    register _XExtension *ext;
+
+    LockDisplay(dpy);
+    /* call out to any extensions interested */
+    for (ext = dpy->ext_procs; ext; ext = ext->next)
+	if (ext->free_Font) (*ext->free_Font)(dpy, fs, &ext->codes);
+    GetResReq (CloseFont, fs->fid, req);
+    UnlockDisplay(dpy);
+    SyncHandle();
+    if (fs->per_char) {
+#ifdef USE_XF86BIGFONT
+	_XF86BigfontFreeFontMetrics(fs);
+#else
+	Xfree ((char *) fs->per_char);
+#endif
+    }
+    _XFreeExtData(fs->ext_data);
+    if (fs->properties)
+	Xfree ((char *) fs->properties);
+    Xfree ((char *) fs);
+    return 1;
+}
+
+
+static XFontStruct *
+_XQueryFont (dpy, fid, seq)
+    register Display *dpy;
+    Font fid;
+    unsigned long seq;
+{
+    register XFontStruct *fs;
+    register long nbytes;
+    xQueryFontReply reply;
+    register xResourceReq *req;
+    register _XExtension *ext;
+    _XAsyncHandler async;
+    _XAsyncErrorState async_state;
+
+    if (seq) {
+	async_state.min_sequence_number = seq;
+	async_state.max_sequence_number = seq;
+	async_state.error_code = BadName;
+	async_state.major_opcode = X_OpenFont;
+	async_state.minor_opcode = 0;
+	async_state.error_count = 0;
+	async.next = dpy->async_handlers;
+	async.handler = _XAsyncErrorHandler;
+	async.data = (XPointer)&async_state;
+	dpy->async_handlers = &async;
+    }
+    GetResReq(QueryFont, fid, req);
+    if (!_XReply (dpy, (xReply *) &reply,
+       ((SIZEOF(xQueryFontReply) - SIZEOF(xReply)) >> 2), xFalse)) {
+	if (seq)
+	    DeqAsyncHandler(dpy, &async);
+	return (XFontStruct *)NULL;
+    }
+    if (seq)
+	DeqAsyncHandler(dpy, &async);
+    if (! (fs = (XFontStruct *) Xmalloc (sizeof (XFontStruct)))) {
+	_XEatData(dpy, (unsigned long)(reply.nFontProps * SIZEOF(xFontProp) +
+				       reply.nCharInfos * SIZEOF(xCharInfo)));
+	return (XFontStruct *)NULL;
+    }
+    fs->ext_data 		= NULL;
+    fs->fid 			= fid;
+    fs->direction 		= reply.drawDirection;
+    fs->min_char_or_byte2	= reply.minCharOrByte2;
+    fs->max_char_or_byte2 	= reply.maxCharOrByte2;
+    fs->min_byte1 		= reply.minByte1;
+    fs->max_byte1 		= reply.maxByte1;
+    fs->default_char 		= reply.defaultChar;
+    fs->all_chars_exist 	= reply.allCharsExist;
+    fs->ascent 			= cvtINT16toInt (reply.fontAscent);
+    fs->descent 		= cvtINT16toInt (reply.fontDescent);
+    
+#ifdef MUSTCOPY
+    {
+	xCharInfo *xcip;
+
+	xcip = (xCharInfo *) &reply.minBounds;
+	fs->min_bounds.lbearing = cvtINT16toShort(xcip->leftSideBearing);
+	fs->min_bounds.rbearing = cvtINT16toShort(xcip->rightSideBearing);
+	fs->min_bounds.width = cvtINT16toShort(xcip->characterWidth);
+	fs->min_bounds.ascent = cvtINT16toShort(xcip->ascent);
+	fs->min_bounds.descent = cvtINT16toShort(xcip->descent);
+	fs->min_bounds.attributes = xcip->attributes;
+
+	xcip = (xCharInfo *) &reply.maxBounds;
+	fs->max_bounds.lbearing = cvtINT16toShort(xcip->leftSideBearing);
+	fs->max_bounds.rbearing =  cvtINT16toShort(xcip->rightSideBearing);
+	fs->max_bounds.width =  cvtINT16toShort(xcip->characterWidth);
+	fs->max_bounds.ascent =  cvtINT16toShort(xcip->ascent);
+	fs->max_bounds.descent =  cvtINT16toShort(xcip->descent);
+	fs->max_bounds.attributes = xcip->attributes;
+    }
+#else
+    /* XXX the next two statements won't work if short isn't 16 bits */
+    fs->min_bounds = * (XCharStruct *) &reply.minBounds;
+    fs->max_bounds = * (XCharStruct *) &reply.maxBounds;
+#endif /* MUSTCOPY */
+
+    fs->n_properties = reply.nFontProps;
+    /* 
+     * if no properties defined for the font, then it is bad
+     * font, but shouldn't try to read nothing.
+     */
+    fs->properties = NULL;
+    if (fs->n_properties > 0) {
+	    nbytes = reply.nFontProps * sizeof(XFontProp);
+	    fs->properties = (XFontProp *) Xmalloc ((unsigned) nbytes);
+	    nbytes = reply.nFontProps * SIZEOF(xFontProp);
+	    if (! fs->properties) {
+		Xfree((char *) fs);
+		_XEatData(dpy, (unsigned long)
+			  (nbytes + reply.nCharInfos * SIZEOF(xCharInfo)));
+		return (XFontStruct *)NULL;
+	    }
+	    _XRead32 (dpy, (long *)fs->properties, nbytes);
+    }
+    /*
+     * If no characters in font, then it is a bad font, but
+     * shouldn't try to read nothing.
+     */
+    /* have to unpack charinfos on some machines (CRAY) */
+    fs->per_char = NULL;
+    if (reply.nCharInfos > 0){
+	nbytes = reply.nCharInfos * sizeof(XCharStruct);
+	if (! (fs->per_char = (XCharStruct *) Xmalloc ((unsigned) nbytes))) {
+	    if (fs->properties) Xfree((char *) fs->properties);
+	    Xfree((char *) fs);
+	    _XEatData(dpy, (unsigned long)
+			    (reply.nCharInfos * SIZEOF(xCharInfo)));
+	    return (XFontStruct *)NULL;
+	}
+	    
+#ifdef MUSTCOPY
+	{
+	    register XCharStruct *cs = fs->per_char;
+	    register int i;
+
+	    for (i = 0; i < reply.nCharInfos; i++, cs++) {
+		xCharInfo xcip;
+
+		_XRead(dpy, (char *)&xcip, SIZEOF(xCharInfo));
+		cs->lbearing = cvtINT16toShort(xcip.leftSideBearing);
+		cs->rbearing = cvtINT16toShort(xcip.rightSideBearing);
+		cs->width =  cvtINT16toShort(xcip.characterWidth);
+		cs->ascent =  cvtINT16toShort(xcip.ascent);
+		cs->descent =  cvtINT16toShort(xcip.descent);
+		cs->attributes = xcip.attributes;
+	    }
+	}
+#else
+	nbytes = reply.nCharInfos * SIZEOF(xCharInfo);
+	_XRead16 (dpy, (char *)fs->per_char, nbytes);
+#endif
+    }
+
+    /* call out to any extensions interested */
+    for (ext = dpy->ext_procs; ext; ext = ext->next)
+	if (ext->create_Font) (*ext->create_Font)(dpy, fs, &ext->codes);
+    return fs;
+}
+
+#ifdef USE_XF86BIGFONT
+
+/* Magic cookie for finding the right XExtData structure on the display's
+   extension list. */
+static int XF86BigfontNumber = 1040697125;
+
+static int
+_XF86BigfontFreeCodes (
+    XExtData *extension)
+{
+    /* Don't Xfree(extension->private_data) because it is on the same malloc
+       chunk as extension. */
+    /* Don't Xfree(extension->private_data->codes) because this is shared with
+       the display's ext_procs list. */
+    return 0;
+}
+
+static XF86BigfontCodes *
+_XF86BigfontCodes (
+    register Display *dpy)
+{
+    XEDataObject dpy_union;
+    XExtData *pData;
+    XF86BigfontCodes *pCodes;
+    char *envval;
+
+    dpy_union.display = dpy;
+
+    /* If the server is known to support the XF86Bigfont extension,
+     * return the extension codes. If the server is known to not support
+     * the extension, don't bother checking again.
+     */
+    pData = XFindOnExtensionList(XEHeadOfExtensionList(dpy_union),
+				 XF86BigfontNumber);
+    if (pData)
+	return (XF86BigfontCodes *) pData->private_data;
+
+    pData = (XExtData *) Xmalloc(sizeof(XExtData) + sizeof(XF86BigfontCodes));
+    if (!pData) {
+	/* Out of luck. */
+	return (XF86BigfontCodes *) NULL;
+    }
+
+    /* See if the server supports the XF86Bigfont extension. */
+    envval = getenv("XF86BIGFONT_DISABLE"); /* Let the user disable it. */
+    if (envval != NULL && envval[0] != '\0')
+	pCodes = NULL;
+    else {
+	XExtCodes *codes = XInitExtension(dpy, XF86BIGFONTNAME);
+	if (codes == NULL)
+	    pCodes = NULL;
+	else {
+	    pCodes = (XF86BigfontCodes *) &pData[1];
+	    pCodes->codes = codes;
+	}
+    }
+    pData->number = XF86BigfontNumber;
+    pData->private_data = (XPointer) pCodes;
+    pData->free_private = _XF86BigfontFreeCodes;
+    XAddToExtensionList(XEHeadOfExtensionList(dpy_union), pData);
+    if (pCodes) {
+	int result;
+
+	/* See if the server supports the XF86BigfontQueryFont request. */
+	xXF86BigfontQueryVersionReply reply;
+	register xXF86BigfontQueryVersionReq *req;
+
+	LockDisplay(dpy);
+
+	GetReq(XF86BigfontQueryVersion, req);
+	req->reqType = pCodes->codes->major_opcode;
+	req->xf86bigfontReqType = X_XF86BigfontQueryVersion;
+
+	result = _XReply (dpy, (xReply *) &reply,
+		(SIZEOF(xXF86BigfontQueryVersionReply) - SIZEOF(xReply)) >> 2,
+		xFalse);
+
+	UnlockDisplay(dpy);
+    	SyncHandle();
+
+	if(!result)
+	    goto ignore_extension;
+
+	/* No need to provide backward compatibility with version 1.0. It
+	   was never widely distributed. */
+	if (!(reply.majorVersion > 1
+	      || (reply.majorVersion == 1 && reply.minorVersion >= 1)))
+	    goto ignore_extension;
+
+	pCodes->serverSignature = reply.signature;
+	pCodes->serverCapabilities = reply.capabilities;
+    }
+    return pCodes;
+
+  ignore_extension:
+    /* No need to Xfree(pCodes) or Xfree(pCodes->codes), see
+       _XF86BigfontFreeCodes comment. */
+    pCodes = (XF86BigfontCodes *) NULL;
+    pData->private_data = (XPointer) pCodes;
+    return pCodes;
+}
+
+static int
+_XF86BigfontFreeNop (
+    XExtData *extension)
+{
+    return 0;
+}
+
+static XFontStruct *
+_XF86BigfontQueryFont (dpy, extcodes, fid, seq)
+    register Display *dpy;
+    XF86BigfontCodes *extcodes;
+    Font fid;
+    unsigned long seq;
+{
+    register XFontStruct *fs;
+    register long nbytes;
+    xXF86BigfontQueryFontReply reply;
+    register xXF86BigfontQueryFontReq *req;
+    register _XExtension *ext;
+    _XAsyncHandler async1;
+    _XAsyncErrorState async1_state;
+    _XAsyncHandler async2;
+    _XAsyncErrorState async2_state;
+
+    if (seq) {
+	async1_state.min_sequence_number = seq;
+	async1_state.max_sequence_number = seq;
+	async1_state.error_code = BadName;
+	async1_state.major_opcode = X_OpenFont;
+	async1_state.minor_opcode = 0;
+	async1_state.error_count = 0;
+	async1.next = dpy->async_handlers;
+	async1.handler = _XAsyncErrorHandler;
+	async1.data = (XPointer)&async1_state;
+	dpy->async_handlers = &async1;
+    }
+
+    GetReq(XF86BigfontQueryFont, req);
+    req->reqType = extcodes->codes->major_opcode;
+    req->xf86bigfontReqType = X_XF86BigfontQueryFont;
+    req->id = fid;
+    req->flags = (extcodes->serverCapabilities & XF86Bigfont_CAP_LocalShm
+		  ? XF86Bigfont_FLAGS_Shm : 0);
+
+    /* The function _XQueryFont benefits from a "magic" error handler for
+       BadFont coming from a X_QueryFont request. (See function _XReply.)
+       We have to establish an error handler ourselves. */
+    async2_state.min_sequence_number = dpy->request;
+    async2_state.max_sequence_number = dpy->request;
+    async2_state.error_code = BadFont;
+    async2_state.major_opcode = extcodes->codes->major_opcode;
+    async2_state.minor_opcode = X_XF86BigfontQueryFont;
+    async2_state.error_count = 0;
+    async2.next = dpy->async_handlers;
+    async2.handler = _XAsyncErrorHandler;
+    async2.data = (XPointer)&async2_state;
+    dpy->async_handlers = &async2;
+
+    if (!_XReply (dpy, (xReply *) &reply,
+       ((SIZEOF(xXF86BigfontQueryFontReply) - SIZEOF(xReply)) >> 2), xFalse)) {
+	DeqAsyncHandler(dpy, &async2);
+	if (seq)
+	    DeqAsyncHandler(dpy, &async1);
+	return (XFontStruct *)NULL;
+    }
+    DeqAsyncHandler(dpy, &async2);
+    if (seq)
+	DeqAsyncHandler(dpy, &async1);
+    if (! (fs = (XFontStruct *) Xmalloc (sizeof (XFontStruct)))) {
+	_XEatData(dpy,
+	          reply.nFontProps * SIZEOF(xFontProp)
+	          + (reply.nCharInfos > 0 && reply.shmid == (CARD32)(-1)
+	             ? reply.nUniqCharInfos * SIZEOF(xCharInfo)
+	               + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16)
+	             : 0));
+	return (XFontStruct *)NULL;
+    }
+    fs->ext_data 		= NULL;
+    fs->fid 			= fid;
+    fs->direction 		= reply.drawDirection;
+    fs->min_char_or_byte2	= reply.minCharOrByte2;
+    fs->max_char_or_byte2 	= reply.maxCharOrByte2;
+    fs->min_byte1 		= reply.minByte1;
+    fs->max_byte1 		= reply.maxByte1;
+    fs->default_char 		= reply.defaultChar;
+    fs->all_chars_exist 	= reply.allCharsExist;
+    fs->ascent 			= cvtINT16toInt (reply.fontAscent);
+    fs->descent 		= cvtINT16toInt (reply.fontDescent);
+
+    /* XXX the next two statements won't work if short isn't 16 bits */
+    fs->min_bounds = * (XCharStruct *) &reply.minBounds;
+    fs->max_bounds = * (XCharStruct *) &reply.maxBounds;
+
+    fs->n_properties = reply.nFontProps;
+    /* 
+     * if no properties defined for the font, then it is bad
+     * font, but shouldn't try to read nothing.
+     */
+    fs->properties = NULL;
+    if (fs->n_properties > 0) {
+	nbytes = reply.nFontProps * sizeof(XFontProp);
+	fs->properties = (XFontProp *) Xmalloc ((unsigned) nbytes);
+	nbytes = reply.nFontProps * SIZEOF(xFontProp);
+	if (! fs->properties) {
+	    Xfree((char *) fs);
+	    _XEatData(dpy,
+		      nbytes
+		      + (reply.nCharInfos > 0 && reply.shmid == (CARD32)(-1)
+		         ? reply.nUniqCharInfos * SIZEOF(xCharInfo)
+		           + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16)
+		         : 0));
+	    return (XFontStruct *)NULL;
+	}
+	_XRead32 (dpy, (long *)fs->properties, nbytes);
+    }
+
+    fs->per_char = NULL;
+    if (reply.nCharInfos > 0) {
+	/* fprintf(stderr, "received font metrics, nCharInfos = %d, nUniqCharInfos = %d, shmid = %d\n", reply.nCharInfos, reply.nUniqCharInfos, reply.shmid); */
+	if (reply.shmid == (CARD32)(-1)) {
+	    xCharInfo* pUniqCI;
+	    CARD16* pIndex2UniqIndex;
+	    int i;
+
+	    nbytes = reply.nUniqCharInfos * SIZEOF(xCharInfo)
+	             + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16);
+	    pUniqCI = (xCharInfo *) Xmalloc (nbytes);
+	    if (!pUniqCI) {
+		if (fs->properties) Xfree((char *) fs->properties);
+		Xfree((char *) fs);
+		_XEatData(dpy, nbytes);
+		return (XFontStruct *)NULL;
+	    }
+	    if (! (fs->per_char = (XCharStruct *) Xmalloc (reply.nCharInfos * sizeof(XCharStruct)))) {
+		Xfree((char *) pUniqCI);
+		if (fs->properties) Xfree((char *) fs->properties);
+		Xfree((char *) fs);
+		_XEatData(dpy, nbytes);
+		return (XFontStruct *)NULL;
+	    }
+	    _XRead16 (dpy, (char *) pUniqCI, nbytes);
+	    pIndex2UniqIndex = (CARD16*) (pUniqCI + reply.nUniqCharInfos);
+	    for (i = 0; i < reply.nCharInfos; i++) {
+		if (pIndex2UniqIndex[i] >= reply.nUniqCharInfos) {
+		    fprintf(stderr, "_XF86BigfontQueryFont: server returned wrong data\n");
+		    Xfree((char *) pUniqCI);
+		    if (fs->properties) Xfree((char *) fs->properties);
+		    Xfree((char *) fs);
+		    return (XFontStruct *)NULL;
+		}
+		/* XXX the next statement won't work if short isn't 16 bits */
+		fs->per_char[i] = * (XCharStruct *) &pUniqCI[pIndex2UniqIndex[i]];
+	    }
+	    Xfree((char *) pUniqCI);
+	} else {
+#ifdef HAS_SHM
+	    XExtData *pData;
+	    XEDataObject fs_union;
+	    char *addr;
+
+	    pData = (XExtData *) Xmalloc(sizeof(XExtData));
+	    if (!pData) {
+		if (fs->properties) Xfree((char *) fs->properties);
+		Xfree((char *) fs);
+		return (XFontStruct *)NULL;
+	    }
+
+	    /* In some cases (e.g. an ssh daemon forwarding an X session to
+	       a remote machine) it is possible that the X server thinks we
+	       are running on the same machine (because getpeername() and
+	       LocalClient() cannot know about the forwarding) but we are
+	       not really local. Therefore, when we attach the first shared
+	       memory segment, we verify that we are on the same machine as
+	       the X server by checking that 1. shmat() succeeds, 2. the
+	       segment has a sufficient size, 3. it contains the X server's
+	       signature. Then we set the CAP_VerifiedLocal bit to indicate
+	       the verification was successful. */
+
+	    if ((addr = shmat(reply.shmid, 0, SHM_RDONLY)) == (char *)-1) {
+		if (extcodes->serverCapabilities & CAP_VerifiedLocal)
+		    fprintf(stderr, "_XF86BigfontQueryFont: could not attach shm segment\n");
+	        Xfree((char *) pData);
+	        if (fs->properties) Xfree((char *) fs->properties);
+	        Xfree((char *) fs);
+		/* Stop requesting shared memory transport from now on. */
+		extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
+	        return (XFontStruct *)NULL;
+	    }
+
+	    if (!(extcodes->serverCapabilities & CAP_VerifiedLocal)) {
+		struct shmid_ds buf;
+		if (!(shmctl(reply.shmid, IPC_STAT, &buf) >= 0
+		      && buf.shm_segsz >= reply.shmsegoffset + reply.nCharInfos * sizeof(XCharStruct) + sizeof(CARD32)
+		      && *(CARD32 *)(addr + reply.shmsegoffset + reply.nCharInfos * sizeof(XCharStruct)) == extcodes->serverSignature)) {
+		    shmdt(addr);
+		    Xfree((char *) pData);
+		    if (fs->properties) Xfree((char *) fs->properties);
+		    Xfree((char *) fs);
+		    /* Stop requesting shared memory transport from now on. */
+		    extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
+		    return (XFontStruct *)NULL;
+		}
+		extcodes->serverCapabilities |= CAP_VerifiedLocal;
+	    }
+
+	    pData->number = XF86BigfontNumber;
+	    pData->private_data = (XPointer) addr;
+	    pData->free_private = _XF86BigfontFreeNop;
+	    fs_union.font = fs;
+	    XAddToExtensionList(XEHeadOfExtensionList(fs_union), pData);
+
+	    fs->per_char = (XCharStruct *) (addr + reply.shmsegoffset);
+#else
+	    fprintf(stderr, "_XF86BigfontQueryFont: try recompiling libX11 with HasShm, Xserver has shm support\n");
+	    if (fs->properties) Xfree((char *) fs->properties);
+	    Xfree((char *) fs);
+	    /* Stop requesting shared memory transport from now on. */
+	    extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
+	    return (XFontStruct *)NULL;
+#endif
+	}
+    }
+
+    /* call out to any extensions interested */
+    for (ext = dpy->ext_procs; ext; ext = ext->next)
+	if (ext->create_Font) (*ext->create_Font)(dpy, fs, &ext->codes);
+    return fs;
+}
+
+void
+_XF86BigfontFreeFontMetrics (fs)
+    XFontStruct *fs;
+{
+#ifdef HAS_SHM
+    XExtData *pData;
+    XEDataObject fs_union;
+
+    fs_union.font = fs;
+    if ((pData = XFindOnExtensionList(XEHeadOfExtensionList(fs_union),
+				      XF86BigfontNumber)))
+	shmdt ((char *) pData->private_data);
+    else
+	Xfree ((char *) fs->per_char);
+#else
+    Xfree ((char *) fs->per_char);
+#endif
+}
+
+#endif /* USE_XF86BIGFONT */
+
+int _XF86LoadQueryLocaleFont(
+   Display *dpy,
+   _Xconst char *name,
+   XFontStruct **xfp,
+   Font *fidp)
+{
+    int l;
+    char *charset, *p;
+    char buf[256];
+    XFontStruct *fs;
+    XLCd lcd;
+
+    if (!name)
+	return 0;
+    l = strlen(name);
+    if (l < 2 || name[l - 1] != '*' || name[l - 2] != '-')
+	return 0;
+    charset = 0;
+    /* next three lines stolen from _XkbGetCharset() */
+    lcd = _XlcCurrentLC();
+    if ((lcd = _XlcCurrentLC()) != 0)
+	charset = XLC_PUBLIC(lcd, encoding_name);
+    if (!charset || (p = strrchr(charset, '-')) == 0 || p == charset || p[1] == 0 || (p[1] == '*' && p[2] == 0)) {
+	/* prefer latin1 if no encoding found */
+	charset = "ISO8859-1";
+	p = charset + 7;
+    }
+    if (l - 2 - (p - charset) < 0)
+	return 0;
+    if (_XlcNCompareISOLatin1(name + l - 2 - (p - charset), charset, p - charset))
+	return 0;
+    if (strlen(p + 1) + l - 1 >= sizeof(buf) - 1)
+	return 0;
+    strcpy(buf, name);
+    strcpy(buf + l - 1, p + 1);
+    fs = XLoadQueryFont(dpy, buf);
+    if (!fs)
+	return 0;
+    if (xfp) {
+	*xfp = fs;
+	if (fidp)
+	    *fidp = fs->fid;
+    } else if (fidp) {
+	if (fs->per_char) {
+#ifdef USE_XF86BIGFONT
+	    _XF86BigfontFreeFontMetrics(fs);
+#else
+	    Xfree ((char *) fs->per_char);
+#endif
+	}
+	_XFreeExtData(fs->ext_data);
+	if (fs->properties)
+	    Xfree ((char *) fs->properties);
+	*fidp = fs->fid;
+	Xfree ((char *) fs);
+    } else {
+	XFreeFont(dpy, fs);
+    }
+    return 1;
+}