Added libXt-1.0.7

1 files changed, 1054 insertions, 0 deletions

diff --git a/libXt/src/Initialize.c b/libXt/src/Initialize.c
new file mode 100644
index 000000000..f2c9c683d
--- /dev/null
+++ b/libXt/src/Initialize.c
@@ -0,0 +1,1054 @@
+/* $Xorg: Initialize.c,v 1.8 2001/02/09 02:03:55 xorgcvs Exp $ */
+
+/***********************************************************
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts
+Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA.
+
+                        All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the names of Digital or Sun not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
+NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE  LI-
+ABLE  FOR  ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,  DATA  OR
+PROFITS,  WHETHER  IN  AN  ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
+THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+******************************************************************/
+/* $XFree86: xc/lib/Xt/Initialize.c,v 3.21 2003/04/21 16:34:27 herrb Exp $ */
+
+/*
+
+Copyright 1987, 1988, 1994, 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.
+
+*/
+
+/* Make sure all wm properties can make it out of the resource manager */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "IntrinsicI.h"
+#include "StringDefs.h"
+#include "CoreP.h"
+#include "ShellP.h"
+#include <stdio.h>
+#include <X11/Xlocale.h>
+#ifdef XTHREADS
+#include <X11/Xthreads.h>
+#endif
+#ifndef WIN32
+#define X_INCLUDE_PWD_H
+#define XOS_USE_XT_LOCKING
+#include <X11/Xos_r.h>
+#endif
+
+#include <stdlib.h>
+
+#if (defined(SUNSHLIB) || defined(AIXSHLIB)) && defined(SHAREDCODE)
+/*
+ * If used as a shared library, generate code under a different name so that
+ * the stub routines in sharedlib.c get loaded into the application binary.
+ */
+#define XtToolkitInitialize _XtToolkitInitialize
+#define XtOpenApplication _XtOpenApplication
+#define XtAppInitialize _XtAppInitialize
+#define XtInitialize _XtInitialize
+#endif /* (SUNSHLIB || AIXSHLIB) && SHAREDCODE */
+
+/*
+ * hpux
+ * Hand-patched versions of HP-UX prior to version 7.0 can usefully add
+ * -DUSE_UNAME in the appropriate config file to get long hostnames.
+ */
+
+#ifdef USG
+#define USE_UNAME
+#endif
+
+#ifdef USE_UNAME
+#include <sys/utsname.h>
+#endif
+
+/* some unspecified magic number of expected search levels for Xrm */
+#define SEARCH_LIST_SIZE 1000
+
+/*
+ This is a set of default records describing the command line arguments that
+ Xlib will parse and set into the resource data base.
+
+ This list is applied before the users list to enforce these defaults.  This is
+ policy, which the toolkit avoids but I hate differing programs at this level.
+*/
+
+static XrmOptionDescRec const opTable[] = {
+{"+rv",		"*reverseVideo", XrmoptionNoArg,	(XtPointer) "off"},
+{"+synchronous","*synchronous",	XrmoptionNoArg,		(XtPointer) "off"},
+{"-background",	"*background",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-bd",		"*borderColor",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-bg",		"*background",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-bordercolor","*borderColor",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-borderwidth",".borderWidth",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-bw",		".borderWidth",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-display",	".display",     XrmoptionSepArg,	(XtPointer) NULL},
+{"-fg",		"*foreground",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-fn",		"*font",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-font",	"*font",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-foreground",	"*foreground",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-geometry",	".geometry",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-iconic",	".iconic",	XrmoptionNoArg,		(XtPointer) "on"},
+{"-name",	".name",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-reverse",	"*reverseVideo", XrmoptionNoArg,	(XtPointer) "on"},
+{"-rv",		"*reverseVideo", XrmoptionNoArg,	(XtPointer) "on"},
+{"-selectionTimeout",
+		".selectionTimeout", XrmoptionSepArg,	(XtPointer) NULL},
+{"-synchronous","*synchronous",	XrmoptionNoArg,		(XtPointer) "on"},
+{"-title",	".title",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-xnllanguage",".xnlLanguage",	XrmoptionSepArg,	(XtPointer) NULL},
+{"-xrm",	NULL,		XrmoptionResArg,	(XtPointer) NULL},
+{"-xtsessionID",".sessionID",	XrmoptionSepArg,	(XtPointer) NULL},
+};
+
+
+/*
+ * GetHostname - emulates gethostname() on non-bsd systems.
+ */
+
+static void GetHostname (
+    char *buf,
+    int maxlen)
+{
+#ifdef USE_UNAME
+    int len;
+    struct utsname name;
+
+    if (maxlen <= 0 || buf == NULL)
+	return;
+
+    uname (&name);
+    len = strlen (name.nodename);
+    if (len >= maxlen) len = maxlen;
+    (void) strncpy (buf, name.nodename, len-1);
+    buf[len-1] = '\0';
+#else
+    if (maxlen <= 0 || buf == NULL)
+	return;
+
+    buf[0] = '\0';
+    (void) gethostname (buf, maxlen);
+    buf [maxlen - 1] = '\0';
+#endif
+}
+
+
+#ifdef SUNSHLIB
+void _XtInherit(void)
+{
+    extern void __XtInherit();
+    __XtInherit();
+}
+#define _XtInherit __XtInherit
+#endif
+
+
+#if defined (WIN32) || defined(__CYGWIN__)
+/*
+ * The Symbol _XtInherit is used in two different manners.
+ * First it could be used as a generic function and second
+ * as an absolute address reference, which will be used to
+ * check the initialisation process of several other libraries.
+ * Because of this the symbol must be accessable by all
+ * client dll's and applications.  In unix environments
+ * this is no problem, because the used shared libraries
+ * format (elf) supports this immediatly.  Under Windows
+ * this isn't true, because a functions address in a dll
+ * is different from the same function in another dll or
+ * applications, because the used Portable Executable
+ * File adds a code stub to each client to provide the
+ * exported symbol name.  This stub uses an indirect
+ * pointer to get the original symbol address, which is
+ * then jumped to, like in this example:
+ *
+ * --- client ---                                     --- dll ----
+ *  ...
+ *  call foo
+ *
+ * foo: jmp (*_imp_foo)               ---->           foo: ....
+ *      nop
+ *      nop
+ *
+ * _imp_foo: .long <index of foo in dll export table, is
+ *		    set to the real address by the runtime linker>
+ *
+ * Now it is clear why the clients symbol foo isn't the same
+ * as in the dll and we can think about how to deal which
+ * this two above mentioned requirements, to export this
+ * symbol to all clients and to allow calling this symbol
+ * as a function.  The solution I've used exports the
+ * symbol _XtInherit as data symbol, because global data
+ * symbols are exported to all clients.  But how to deal
+ * with the second requirement, that this symbol should
+ * be used as function.  The Trick is to build a little
+ * code stub in the data section in the exact manner as
+ * above explained.  This is done with the assembler code
+ * below.
+ *
+ * Ralf Habacker
+ *
+ * References:
+ * msdn          http://msdn.microsoft.com/msdnmag/issues/02/02/PE/PE.asp
+ * cygwin-xfree: http://www.cygwin.com/ml/cygwin-xfree/2003-10/msg00000.html
+ */
+
+asm (".data\n\
+ .globl __XtInherit        \n\
+ __XtInherit:      jmp *_y \n\
+  _y: .long ___XtInherit   \n\
+    .text                 \n");
+
+#define _XtInherit __XtInherit
+#endif
+
+
+void _XtInherit(void)
+{
+    XtErrorMsg("invalidProcedure","inheritanceProc",XtCXtToolkitError,
+            "Unresolved inheritance operation",
+              (String *)NULL, (Cardinal *)NULL);
+}
+
+
+void XtToolkitInitialize(void)
+{
+    static Boolean initialized = False;
+
+    LOCK_PROCESS;
+    if (initialized) {
+	UNLOCK_PROCESS;
+	return;
+    }
+    initialized = True;
+    UNLOCK_PROCESS;
+    /* Resource management initialization */
+    XrmInitialize();
+    _XtResourceListInitialize();
+
+    /* Other intrinsic intialization */
+    _XtConvertInitialize();
+    _XtEventInitialize();
+    _XtTranslateInitialize();
+
+    /* Some apps rely on old (broken) XtAppPeekEvent behavior */
+    if(getenv("XTAPPPEEKEVENT_SKIPTIMER"))
+	XtAppPeekEvent_SkipTimer = True;
+    else
+	XtAppPeekEvent_SkipTimer = False;
+}
+
+
+String _XtGetUserName(
+    String dest,
+    int len)
+{
+#ifdef WIN32
+    String ptr = NULL;
+
+    if ((ptr = getenv("USERNAME"))) {
+	(void) strncpy (dest, ptr, len-1);
+	dest[len-1] = '\0';
+    } else
+	*dest = '\0';
+#else
+#ifdef X_NEEDS_PWPARAMS
+    _Xgetpwparams pwparams;
+#endif
+    struct passwd *pw;
+    char* ptr;
+
+    if ((ptr = getenv("USER"))) {
+	(void) strncpy (dest, ptr, len-1);
+	dest[len-1] = '\0';
+    } else {
+	if ((pw = _XGetpwuid(getuid(),pwparams)) != NULL) {
+	    (void) strncpy (dest, pw->pw_name, len-1);
+	    dest[len-1] = '\0';
+	} else
+	    *dest = '\0';
+    }
+#endif
+    return dest;
+}
+
+
+static String GetRootDirName(
+    String dest,
+    int len)
+{
+#ifdef WIN32
+    register char *ptr1;
+    register char *ptr2 = NULL;
+    int len1 = 0, len2 = 0;
+
+    if (ptr1 = getenv("HOME")) {	/* old, deprecated */
+	len1 = strlen (ptr1);
+    } else if ((ptr1 = getenv("HOMEDRIVE")) && (ptr2 = getenv("HOMEDIR"))) {
+	len1 = strlen (ptr1);
+	len2 = strlen (ptr2);
+    } else if (ptr2 = getenv("USERNAME")) {
+	len1 = strlen (ptr1 = "/users/");
+	len2 = strlen (ptr2);
+    }
+    if ((len1 + len2 + 1) < len)
+	sprintf (dest, "%s%s", ptr1, (ptr2) ? ptr2 : "");
+    else
+	*dest = '\0';
+#else
+#ifdef X_NEEDS_PWPARAMS
+    _Xgetpwparams pwparams;
+#endif
+    struct passwd *pw;
+    static char *ptr;
+
+    if (len <= 0 || dest == NULL)
+	return NULL;
+
+    if ((ptr = getenv("HOME"))) {
+	(void) strncpy (dest, ptr, len-1);
+	dest[len-1] = '\0';
+    } else {
+	if ((ptr = getenv("USER")))
+	    pw = _XGetpwnam(ptr,pwparams);
+	else
+ 	    pw = _XGetpwuid(getuid(),pwparams);
+	if (pw != NULL) {
+	    (void) strncpy (dest, pw->pw_dir, len-1);
+	    dest[len-1] = '\0';
+	} else
+	    *dest = '\0';
+    }
+#endif
+    return dest;
+}
+
+static void CombineAppUserDefaults(
+    Display *dpy,
+    XrmDatabase *pdb)
+{
+    char* filename;
+    char* path;
+    Boolean deallocate = False;
+
+    if (!(path = getenv("XUSERFILESEARCHPATH"))) {
+#if !defined(WIN32) || !defined(__MINGW32__)
+	char *old_path;
+	char homedir[PATH_MAX];
+	GetRootDirName(homedir, PATH_MAX);
+	if (!(old_path = getenv("XAPPLRESDIR"))) {
+	    char *path_default = "%s/%%L/%%N%%C:%s/%%l/%%N%%C:%s/%%N%%C:%s/%%L/%%N:%s/%%l/%%N:%s/%%N";
+	    if (!(path =
+		  ALLOCATE_LOCAL(6*strlen(homedir) + strlen(path_default))))
+		_XtAllocError(NULL);
+	    sprintf( path, path_default,
+		    homedir, homedir, homedir, homedir, homedir, homedir );
+	} else {
+	    char *path_default = "%s/%%L/%%N%%C:%s/%%l/%%N%%C:%s/%%N%%C:%s/%%N%%C:%s/%%L/%%N:%s/%%l/%%N:%s/%%N:%s/%%N";
+	    if (!(path =
+		  ALLOCATE_LOCAL( 6*strlen(old_path) + 2*strlen(homedir)
+				 + strlen(path_default))))
+		_XtAllocError(NULL);
+	    sprintf(path, path_default, old_path, old_path, old_path, homedir,
+		    old_path, old_path, old_path, homedir );
+	}
+	deallocate = True;
+#endif
+    }
+
+    filename = XtResolvePathname(dpy, NULL, NULL, NULL, path, NULL, 0, NULL);
+    if (filename) {
+	(void)XrmCombineFileDatabase(filename, pdb, False);
+	XtFree(filename);
+    }
+
+    if (deallocate) DEALLOCATE_LOCAL(path);
+}
+
+static void CombineUserDefaults(
+    Display *dpy,
+    XrmDatabase *pdb)
+{
+#ifdef __MINGW32__
+    char *slashDotXdefaults = "/Xdefaults";
+#else
+    char *slashDotXdefaults = "/.Xdefaults";
+#endif
+    char *dpy_defaults = XResourceManagerString(dpy);
+
+    if (dpy_defaults) {
+	XrmCombineDatabase(XrmGetStringDatabase(dpy_defaults), pdb, False);
+    } else {
+	char filename[PATH_MAX];
+	(void) GetRootDirName(filename,
+			PATH_MAX - strlen (slashDotXdefaults) - 1);
+	(void) strcat(filename, slashDotXdefaults);
+	(void)XrmCombineFileDatabase(filename, pdb, False);
+    }
+}
+
+/*ARGSUSED*/
+static Bool StoreDBEntry(
+    XrmDatabase		*db,
+    XrmBindingList      bindings,
+    XrmQuarkList	quarks,
+    XrmRepresentation   *type,
+    XrmValuePtr		value,
+    XPointer		data)
+{
+    XrmQPutResource((XrmDatabase *)data, bindings, quarks, *type, value);
+    return False;
+}
+
+static XrmDatabase CopyDB(XrmDatabase db)
+{
+    XrmDatabase copy = NULL;
+    XrmQuark empty = NULLQUARK;
+
+    XrmEnumerateDatabase(db, &empty, &empty, XrmEnumAllLevels,
+			 StoreDBEntry, (XPointer)&copy);
+    return copy;
+}
+
+/*ARGSUSED*/
+static String _XtDefaultLanguageProc(
+    Display   *dpy,	/* unused */
+    String     xnl,
+    XtPointer  closure)	/* unused */
+{
+    if (! setlocale(LC_ALL, xnl))
+	XtWarning("locale not supported by C library, locale unchanged");
+
+    if (! XSupportsLocale()) {
+	XtWarning("locale not supported by Xlib, locale set to C");
+	setlocale(LC_ALL, "C");
+    }
+    if (! XSetLocaleModifiers(""))
+	XtWarning("X locale modifiers not supported, using default");
+
+    return setlocale(LC_ALL, NULL); /* re-query in case overwritten */
+}
+
+XtLanguageProc XtSetLanguageProc(
+    XtAppContext      app,
+    XtLanguageProc    proc,
+    XtPointer         closure)
+{
+    XtLanguageProc    old;
+
+    if (!proc) {
+	proc = _XtDefaultLanguageProc;
+	closure = NULL;
+    }
+
+    if (app) {
+	LOCK_APP(app);
+	LOCK_PROCESS;
+	/* set langProcRec only for this application context */
+        old = app->langProcRec.proc;
+        app->langProcRec.proc = proc;
+        app->langProcRec.closure = closure;
+	UNLOCK_PROCESS;
+	UNLOCK_APP(app);
+    } else {
+	/* set langProcRec for all application contexts */
+        ProcessContext process;
+
+	LOCK_PROCESS;
+        process = _XtGetProcessContext();
+        old = process->globalLangProcRec.proc;
+	process->globalLangProcRec.proc = proc;
+	process->globalLangProcRec.closure = closure;
+        app = process->appContextList;
+        while (app) {
+            app->langProcRec.proc = proc;
+            app->langProcRec.closure = closure;
+	    app = app->next;
+        }
+	UNLOCK_PROCESS;
+    }
+    return (old ? old : _XtDefaultLanguageProc);
+}
+
+XrmDatabase XtScreenDatabase(
+    Screen *screen)
+{
+    int scrno;
+    Bool doing_def;
+    XrmDatabase db, olddb;
+    XtPerDisplay pd;
+    Status do_fallback;
+    char *scr_resources;
+    Display *dpy = DisplayOfScreen(screen);
+    DPY_TO_APPCON(dpy);
+
+    LOCK_APP(app);
+    LOCK_PROCESS;
+    if (screen == DefaultScreenOfDisplay(dpy)) {
+	scrno = DefaultScreen(dpy);
+	doing_def = True;
+    } else {
+	scrno = XScreenNumberOfScreen(screen);
+	doing_def = False;
+    }
+    pd = _XtGetPerDisplay(dpy);
+    if ((db = pd->per_screen_db[scrno])) {
+	UNLOCK_PROCESS;
+	UNLOCK_APP(app);
+	return (doing_def ? XrmGetDatabase(dpy) : db);
+    }
+    scr_resources = XScreenResourceString(screen);
+
+    if (ScreenCount(dpy) == 1) {
+	db = pd->cmd_db;
+	pd->cmd_db = NULL;
+    } else {
+	db = CopyDB(pd->cmd_db);
+    }
+    {   /* Environment defaults */
+	char	filenamebuf[PATH_MAX];
+	char	*filename;
+
+	if (!(filename = getenv("XENVIRONMENT"))) {
+	    int len;
+#ifdef __MINGW32__
+	    char *slashDotXdefaultsDash = "/Xdefaults-";
+#else
+	    char *slashDotXdefaultsDash = "/.Xdefaults-";
+#endif
+
+	    (void) GetRootDirName(filename = filenamebuf,
+			PATH_MAX - strlen (slashDotXdefaultsDash) - 1);
+	    (void) strcat(filename, slashDotXdefaultsDash);
+	    len = strlen(filename);
+	    GetHostname (filename+len, PATH_MAX-len);
+	}
+	(void)XrmCombineFileDatabase(filename, &db, False);
+    }
+    if (scr_resources)
+    {   /* Screen defaults */
+	XrmCombineDatabase(XrmGetStringDatabase(scr_resources), &db, False);
+	XFree(scr_resources);
+    }
+    /* Server or host defaults */
+    if (!pd->server_db)
+	CombineUserDefaults(dpy, &db);
+    else {
+	(void) XrmCombineDatabase(pd->server_db, &db, False);
+	pd->server_db = NULL;
+    }
+
+    if (!db)
+	db = XrmGetStringDatabase("");
+    pd->per_screen_db[scrno] = db;
+    olddb = XrmGetDatabase(dpy);
+    /* set database now, for XtResolvePathname to use */
+    XrmSetDatabase(dpy, db);
+    CombineAppUserDefaults(dpy, &db);
+    do_fallback = 1;
+    {   /* System app-defaults */
+	char	*filename;
+
+	if ((filename = XtResolvePathname(dpy, "app-defaults",
+					 NULL, NULL, NULL, NULL, 0, NULL))) {
+	    do_fallback = !XrmCombineFileDatabase(filename, &db, False);
+	    XtFree(filename);
+	}
+    }
+    /* now restore old database, if need be */
+    if (!doing_def)
+	XrmSetDatabase(dpy, olddb);
+    if (do_fallback && pd->appContext->fallback_resources)
+    {   /* Fallback defaults */
+        XrmDatabase fdb = NULL;
+	String *res;
+
+	for (res = pd->appContext->fallback_resources; *res; res++)
+	    XrmPutLineResource(&fdb, *res);
+	(void)XrmCombineDatabase(fdb, &db, False);
+    }
+    UNLOCK_PROCESS;
+    UNLOCK_APP(app);
+    return db;
+}
+
+/*
+ * Merge two option tables, allowing the second to over-ride the first,
+ * so that ambiguous abbreviations can be noticed.  The merge attempts
+ * to make the resulting table lexicographically sorted, but succeeds
+ * only if the first source table is sorted.  Though it _is_ recommended
+ * (for optimizations later in XrmParseCommand), it is not required
+ * that either source table be sorted.
+ *
+ * Caller is responsible for freeing the returned option table.
+ */
+
+static void _MergeOptionTables(
+    const XrmOptionDescRec *src1,
+    Cardinal num_src1,
+    const XrmOptionDescRec *src2,
+    Cardinal num_src2,
+    XrmOptionDescRec **dst,
+    Cardinal *num_dst)
+{
+    XrmOptionDescRec *table, *endP;
+    register XrmOptionDescRec *opt1, *whereP, *dstP;
+    register const XrmOptionDescRec *opt2;
+    int i1;
+    Cardinal i2;
+    int dst_len, order;
+    Boolean found;
+    enum {Check, NotSorted, IsSorted} sort_order = Check;
+
+    *dst = table = (XrmOptionDescRec*)
+	__XtMalloc( sizeof(XrmOptionDescRec) * (num_src1 + num_src2) );
+
+    (void) memmove(table, src1, sizeof(XrmOptionDescRec) * num_src1 );
+    if (num_src2 == 0) {
+	*num_dst = num_src1;
+	return;
+    }
+    endP = &table[dst_len = num_src1];
+    for (opt2 = src2, i2= 0; i2 < num_src2; opt2++, i2++) {
+	found = False;
+	whereP = endP-1;	/* assume new option goes at the end */
+	for (opt1 = table, i1 = 0; i1 < dst_len; opt1++, i1++) {
+	    /* have to walk the entire new table so new list is ordered
+	       (if src1 was ordered) */
+	    if (sort_order == Check && i1 > 0
+		&& strcmp(opt1->option, (opt1-1)->option) < 0)
+		sort_order = NotSorted;
+	    if ((order = strcmp(opt1->option, opt2->option)) == 0) {
+		/* same option names; just overwrite opt1 with opt2 */
+		*opt1 = *opt2;
+		found = True;
+		break;
+		}
+	    /* else */
+	    if (sort_order == IsSorted && order > 0) {
+		/* insert before opt1 to preserve order */
+		/* shift rest of table forward to make room for new entry */
+		for (dstP = endP++; dstP > opt1; dstP--)
+		    *dstP = *(dstP-1);
+		*opt1 = *opt2;
+		dst_len++;
+		found = True;
+		break;
+	    }
+	    /* else */
+	    if (order < 0)
+		/* opt2 sorts after opt1, so remember this position */
+		whereP = opt1;
+	}
+	if (sort_order == Check && i1 == dst_len)
+	    sort_order = IsSorted;
+	if (!found) {
+	   /* when we get here, whereP points to the last entry in the
+	      destination that sorts before "opt2".  Shift rest of table
+	      forward and insert "opt2" after whereP. */
+	    whereP++;
+	    for (dstP = endP++; dstP > whereP; dstP--)
+		*dstP = *(dstP-1);
+	    *whereP = *opt2;
+	    dst_len++;
+	}
+    }
+    *num_dst = dst_len;
+}
+
+
+/* NOTE: name, class, and type must be permanent strings */
+static Boolean _GetResource(
+    Display *dpy,
+    XrmSearchList list,
+    String name,
+    String class,
+    String type,
+    XrmValue* value)
+{
+    XrmRepresentation db_type;
+    XrmValue db_value;
+    XrmName Qname = XrmPermStringToQuark(name);
+    XrmClass Qclass = XrmPermStringToQuark(class);
+    XrmRepresentation Qtype = XrmPermStringToQuark(type);
+
+    if (XrmQGetSearchResource(list, Qname, Qclass, &db_type, &db_value)) {
+	if (db_type == Qtype) {
+	    if (Qtype == _XtQString)
+		*(String*)value->addr = db_value.addr;
+	    else
+		(void) memmove(value->addr, db_value.addr, value->size );
+	    return True;
+	} else {
+	    WidgetRec widget; /* hack, hack */
+	    bzero( &widget, sizeof(widget) );
+	    widget.core.self = &widget;
+	    widget.core.widget_class = coreWidgetClass;
+	    widget.core.screen = (Screen*)DefaultScreenOfDisplay(dpy);
+	    XtInitializeWidgetClass(coreWidgetClass);
+	    if (_XtConvert(&widget,db_type,&db_value,Qtype,value,NULL)) {
+		return True;
+	    }
+	}
+    }
+    return False;
+}
+
+XrmDatabase _XtPreparseCommandLine(
+    XrmOptionDescRec *urlist,
+    Cardinal num_urs,
+    int argc,
+    String *argv,
+    /* return */
+    String *applName,
+    String *displayName,
+    String *language)
+{
+    XrmDatabase db = NULL;
+    XrmOptionDescRec *options;
+    Cardinal num_options;
+    XrmName name_list[3];
+    XrmName class_list[3];
+    XrmRepresentation type;
+    XrmValue val;
+    String *targv;
+    int targc = argc;
+
+    targv = (String *) __XtMalloc(sizeof(char *) * argc);
+    (void) memmove(targv, argv, sizeof(char *) * argc);
+    _MergeOptionTables(opTable, XtNumber(opTable), urlist, num_urs,
+		       &options, &num_options);
+    name_list[0] = class_list[0] = XrmPermStringToQuark(".");
+    name_list[2] = class_list[2] = NULLQUARK;
+    XrmParseCommand(&db, options, num_options, ".", &targc, targv);
+    if (applName) {
+	name_list[1] = XrmPermStringToQuark("name");
+	if (XrmQGetResource(db, name_list, name_list, &type, &val) &&
+	    type == _XtQString)
+	    *applName = val.addr;
+    }
+    if (displayName) {
+	name_list[1] = XrmPermStringToQuark("display");
+	if (XrmQGetResource(db, name_list, name_list, &type, &val) &&
+	    type == _XtQString)
+	    *displayName = val.addr;
+    }
+    if (language) {
+	name_list[1] = XrmPermStringToQuark("xnlLanguage");
+	class_list[1] = XrmPermStringToQuark("XnlLanguage");
+	if (XrmQGetResource(db, name_list, class_list, &type, &val) &&
+	    type == _XtQString)
+	    *language = val.addr;
+    }
+
+    XtFree((char *)targv);
+    XtFree((char *)options);
+    return db;
+}
+
+
+static void GetLanguage(
+    Display *dpy,
+    XtPerDisplay pd)
+{
+    XrmRepresentation type;
+    XrmValue value;
+    XrmName name_list[3];
+    XrmName class_list[3];
+
+    LOCK_PROCESS;
+    if (! pd->language) {
+	name_list[0] = pd->name;
+	name_list[1] = XrmPermStringToQuark("xnlLanguage");
+	class_list[0] = pd->class;
+	class_list[1] = XrmPermStringToQuark("XnlLanguage");
+	name_list[2] = class_list[2] = NULLQUARK;
+	if (!pd->server_db)
+	    CombineUserDefaults(dpy, &pd->server_db);
+	if (pd->server_db &&
+	    XrmQGetResource(pd->server_db,name_list,class_list, &type, &value)
+	    && type == _XtQString)
+	    pd->language = (char *) value.addr;
+    }
+
+    if (pd->appContext->langProcRec.proc) {
+	if (! pd->language) pd->language = "";
+	pd->language = (*pd->appContext->langProcRec.proc)
+	    (dpy, pd->language, pd->appContext->langProcRec.closure);
+    }
+    else if (! pd->language || pd->language[0] == '\0') /* R4 compatibility */
+	pd->language = getenv("LANG");
+
+    if (pd->language) pd->language = XtNewString(pd->language);
+    UNLOCK_PROCESS;
+}
+
+static void ProcessInternalConnection (
+    XtPointer client_data,
+    int* fd,
+    XtInputId* id)
+{
+    XProcessInternalConnection ((Display *) client_data, *fd);
+}
+
+static void ConnectionWatch (
+    Display* dpy,
+    XPointer client_data,
+    int fd,
+    Bool opening,
+    XPointer* watch_data)
+{
+    XtInputId* iptr;
+    XtAppContext app = XtDisplayToApplicationContext(dpy);
+
+    if (opening) {
+	iptr = (XtInputId *) __XtMalloc(sizeof(XtInputId));
+	*iptr = XtAppAddInput(app, fd, (XtPointer) XtInputReadMask,
+			      ProcessInternalConnection, client_data);
+	*watch_data = (XPointer) iptr;
+    } else {
+	iptr = (XtInputId *) *watch_data;
+	XtRemoveInput(*iptr);
+        (void) XtFree(*watch_data);
+    }
+}
+
+void _XtDisplayInitialize(
+	Display *dpy,
+        XtPerDisplay pd,
+	_Xconst char* name,
+	XrmOptionDescRec *urlist,
+	Cardinal num_urs,
+	int *argc,
+	char **argv)
+{
+	Boolean tmp_bool;
+	XrmValue value;
+	XrmOptionDescRec *options;
+	Cardinal num_options;
+	XrmDatabase db;
+	XrmName name_list[2];
+	XrmClass class_list[2];
+	XrmHashTable* search_list;
+	int search_list_size = SEARCH_LIST_SIZE;
+
+	GetLanguage(dpy, pd);
+
+	/* Parse the command line and remove Xt arguments from argv */
+	_MergeOptionTables( opTable, XtNumber(opTable), urlist, num_urs,
+			    &options, &num_options );
+	XrmParseCommand(&pd->cmd_db, options, num_options, name, argc, argv);
+
+	db = XtScreenDatabase(DefaultScreenOfDisplay(dpy));
+
+	if (!(search_list = (XrmHashTable*)
+		       ALLOCATE_LOCAL( SEARCH_LIST_SIZE*sizeof(XrmHashTable))))
+	    _XtAllocError(NULL);
+	name_list[0] = pd->name;
+	class_list[0] = pd->class;
+	name_list[1] = NULLQUARK;
+	class_list[1] = NULLQUARK;
+
+	while (!XrmQGetSearchList(db, name_list, class_list,
+				  search_list, search_list_size)) {
+	    XrmHashTable* old = search_list;
+	    Cardinal size = (search_list_size*=2)*sizeof(XrmHashTable);
+	    if (!(search_list = (XrmHashTable*)ALLOCATE_LOCAL(size)))
+		_XtAllocError(NULL);
+	    (void) memmove((char*)search_list, (char*)old, (size>>1) );
+	    DEALLOCATE_LOCAL(old);
+	}
+
+	value.size = sizeof(tmp_bool);
+	value.addr = (XtPointer)&tmp_bool;
+	if (_GetResource(dpy, search_list, "synchronous", "Synchronous",
+			 XtRBoolean, &value)) {
+	    int i;
+	    Display **dpyP = pd->appContext->list;
+	    pd->appContext->sync = tmp_bool;
+	    for (i = pd->appContext->count; i; dpyP++, i--) {
+		(void) XSynchronize(*dpyP, (Bool)tmp_bool);
+	    }
+	} else {
+	    (void) XSynchronize(dpy, (Bool)pd->appContext->sync);
+	}
+
+	if (_GetResource(dpy, search_list, "reverseVideo", "ReverseVideo",
+			 XtRBoolean, &value)
+	        && tmp_bool) {
+	    pd->rv = True;
+	}
+
+	value.size = sizeof(pd->multi_click_time);
+	value.addr = (XtPointer)&pd->multi_click_time;
+	if (!_GetResource(dpy, search_list,
+			  "multiClickTime", "MultiClickTime",
+			  XtRInt, &value)) {
+	    pd->multi_click_time = 200;
+	}
+
+	value.size = sizeof(pd->appContext->selectionTimeout);
+	value.addr = (XtPointer)&pd->appContext->selectionTimeout;
+	(void)_GetResource(dpy, search_list,
+			   "selectionTimeout", "SelectionTimeout",
+			   XtRInt, &value);
+
+#ifndef NO_IDENTIFY_WINDOWS
+	value.size = sizeof(pd->appContext->identify_windows);
+	value.addr = (XtPointer)&pd->appContext->identify_windows;
+	(void)_GetResource(dpy, search_list,
+			   "xtIdentifyWindows", "XtDebug",
+			   XtRBoolean, &value);
+#endif
+
+	XAddConnectionWatch(dpy, ConnectionWatch, (XPointer) dpy);
+
+	XtFree( (XtPointer)options );
+	DEALLOCATE_LOCAL( search_list );
+}
+
+/*	Function Name: XtAppSetFallbackResources
+ *	Description: Sets the fallback resource list that will be loaded
+ *                   at display initialization time.
+ *	Arguments: app_context - the app context.
+ *                 specification_list - the resource specification list.
+ *	Returns: none.
+ */
+
+void
+XtAppSetFallbackResources(
+    XtAppContext app_context,
+    String *specification_list)
+{
+    LOCK_APP(app_context);
+    app_context->fallback_resources = specification_list;
+    UNLOCK_APP(app_context);
+}
+
+
+Widget XtOpenApplication(XtAppContext *app_context_return,
+			 _Xconst char *application_class,
+			 XrmOptionDescRec *options, Cardinal num_options,
+			 int *argc_in_out, String *argv_in_out,
+			 String *fallback_resources, WidgetClass widget_class,
+			 ArgList args_in, Cardinal num_args_in)
+{
+    XtAppContext app_con;
+    Display * dpy;
+    register int saved_argc = *argc_in_out;
+    Widget root;
+    Arg args[3], *merged_args;
+    Cardinal num = 0;
+
+    XtToolkitInitialize(); /* cannot be moved into _XtAppInit */
+
+    dpy = _XtAppInit(&app_con, (String)application_class, options, num_options,
+		     argc_in_out, &argv_in_out, fallback_resources);
+
+    LOCK_APP(app_con);
+    XtSetArg(args[num], XtNscreen, DefaultScreenOfDisplay(dpy)); num++;
+    XtSetArg(args[num], XtNargc, saved_argc);	                 num++;
+    XtSetArg(args[num], XtNargv, argv_in_out);	                 num++;
+
+    merged_args = XtMergeArgLists(args_in, num_args_in, args, num);
+    num += num_args_in;
+
+    root = XtAppCreateShell(NULL, application_class, widget_class, dpy,
+			    merged_args, num);
+
+    if (app_context_return)
+	*app_context_return = app_con;
+
+    XtFree((XtPointer)merged_args);
+    XtFree((XtPointer)argv_in_out);
+    UNLOCK_APP(app_con);
+    return root;
+}
+
+
+Widget
+XtAppInitialize(
+    XtAppContext * app_context_return,
+    _Xconst char* application_class,
+    XrmOptionDescRec *options,
+    Cardinal num_options,
+    int *argc_in_out,
+    String *argv_in_out,
+    String *fallback_resources,
+    ArgList args_in,
+    Cardinal num_args_in)
+{
+    return XtOpenApplication(app_context_return, application_class,
+			     options, num_options,
+			     argc_in_out, argv_in_out, fallback_resources,
+			     applicationShellWidgetClass,
+			     args_in, num_args_in);
+}
+
+
+/*ARGSUSED*/
+Widget
+XtInitialize(
+    _Xconst char* name,
+    _Xconst char* classname,
+    XrmOptionDescRec *options,
+    Cardinal num_options,
+    int *argc,
+    String *argv)
+{
+    Widget root;
+    XtAppContext app_con;
+    register ProcessContext process = _XtGetProcessContext();
+
+    root = XtAppInitialize(&app_con, classname, options, num_options,
+			   argc, argv, NULL, NULL, (Cardinal) 0);
+
+    LOCK_PROCESS;
+    process->defaultAppContext = app_con;
+    UNLOCK_PROCESS;
+    return root;
+}