/******************************************************************          Copyright 1994, 1995 by Sun Microsystems, Inc.         Copyright 1993, 1994 by Hewlett-Packard Company Permission to use, copy, modify, distribute, and sell this softwareand its documentation for any purpose is hereby granted without fee,provided that the above copyright notice appear in all copies andthat both that copyright notice and this permission notice appearin supporting documentation, and that the name of Sun Microsystems, Inc.and Hewlett-Packard not be used in advertising or publicity pertaining todistribution of the software without specific, written prior permission.Sun Microsystems, Inc. and Hewlett-Packard make no representations aboutthe suitability of this software for any purpose.  It is provided "as is"without express or implied warranty. SUN MICROSYSTEMS INC. AND HEWLETT-PACKARD COMPANY DISCLAIMS ALLWARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIEDWARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALLSUN MICROSYSTEMS, INC. AND HEWLETT-PACKARD COMPANY BE LIABLE FOR ANYSPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVERRESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OFCONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ORIN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.   Author: Hidetoshi Tajima(tajima@Eng.Sun.COM) Sun Microsystems, Inc.    This version tidied and debugged by Steve Underwood May 1999 ******************************************************************/#include <X11/Xlib.h>#include <X11/Xatom.h>#include "FrameMgr.h"#include "IMdkit.h"#include "Xi18n.h"#include "Xi18nX.h"extern Xi18nClient *_Xi18nFindClient(Xi18n, CARD16);extern Xi18nClient *_Xi18nNewClient(Xi18n);extern void _Xi18nDeleteClient(Xi18n, CARD16);static Bool WaitXConnectMessage(Display*, Window,                                XEvent*, XPointer);static Bool WaitXIMProtocol(Display*, Window, XEvent*, XPointer);static XClient *NewXClient (Xi18n i18n_core, Window new_client){    Display *dpy = i18n_core->address.dpy;    Xi18nClient *client = _Xi18nNewClient (i18n_core);    XClient *x_client;    x_client = (XClient *) malloc (sizeof (XClient));    x_client->client_win = new_client;    x_client->accept_win = XCreateSimpleWindow (dpy,                                                DefaultRootWindow(dpy),                                                0,                                                0,                                                1,                                                1,                                                1,                                                0,                                                0);    client->trans_rec = x_client;    return ((XClient *) x_client);}static unsigned char *ReadXIMMessage (XIMS ims,                                      XClientMessageEvent *ev,                                      int *connect_id){    Xi18n i18n_core = ims->protocol;    Xi18nClient *client = i18n_core->address.clients;    XClient *x_client;    FrameMgr fm;    extern XimFrameRec packet_header_fr[];    unsigned char *p = NULL;    unsigned char *p1;    while (client != NULL) {        x_client = (XClient *) client->trans_rec;        if (x_client->accept_win == ev->window) {            *connect_id = client->connect_id;            break;        }        client = client->next;    }    if (ev->format == 8) {        /* ClientMessage only */        XimProtoHdr *hdr = (XimProtoHdr *) ev->data.b;        unsigned char *rec = (unsigned char *) (hdr + 1);        register int total_size;        CARD8 major_opcode;        CARD8 minor_opcode;        CARD16 length;        extern int _Xi18nNeedSwap (Xi18n, CARD16);        if (client->byte_order == '?')        {            if (hdr->major_opcode != XIM_CONNECT)                return (unsigned char *) NULL; 	/* can do nothing */            client->byte_order = (CARD8) rec[0];        }        fm = FrameMgrInit (packet_header_fr,                           (char *) hdr,                           _Xi18nNeedSwap (i18n_core, *connect_id));        total_size = FrameMgrGetTotalSize (fm);        /* get data */        FrameMgrGetToken (fm, major_opcode);        FrameMgrGetToken (fm, minor_opcode);        FrameMgrGetToken (fm, length);        FrameMgrFree (fm);        if ((p = (unsigned char *) malloc (total_size + length * 4)) == NULL)            return (unsigned char *) NULL;        p1 = p;        memmove (p1, &major_opcode, sizeof (CARD8));        p1 += sizeof (CARD8);        memmove (p1, &minor_opcode, sizeof (CARD8));        p1 += sizeof (CARD8);        memmove (p1, &length, sizeof (CARD16));        p1 += sizeof (CARD16);        memmove (p1, rec, length * 4);    }    else if (ev->format == 32) {        /* ClientMessage and WindowProperty */        unsigned long length = (unsigned long) ev->data.l[0];        Atom atom = (Atom) ev->data.l[1];        int	return_code;        Atom	actual_type_ret;        int	actual_format_ret;        unsigned long bytes_after_ret;        unsigned char *prop;        unsigned long nitems;        return_code = XGetWindowProperty (i18n_core->address.dpy,                                          x_client->accept_win,                                          atom,                                          0L,                                          length,                                          True,                                          AnyPropertyType,                                          &actual_type_ret,                                          &actual_format_ret,                                          &nitems,                                          &bytes_after_ret,                                          &prop);        if (return_code != Success || actual_format_ret == 0 || nitems == 0) {            if (return_code == Success)                XFree (prop);            return (unsigned char *) NULL;        }        if (length != nitems)            length = nitems;	if (actual_format_ret == 16)	    length *= 2;	else if (actual_format_ret == 32)	    length *= 4;        /* if hit, it might be an error */        if ((p = (unsigned char *) malloc (length)) == NULL)            return (unsigned char *) NULL;        memmove (p, prop, length);        XFree (prop);    }    return (unsigned char *) p;}static void ReadXConnectMessage (XIMS ims, XClientMessageEvent *ev){    Xi18n i18n_core = ims->protocol;    XSpecRec *spec = (XSpecRec *) i18n_core->address.connect_addr;    XEvent event;    Display *dpy = i18n_core->address.dpy;    Window new_client = ev->data.l[0];    CARD32 major_version = ev->data.l[1];    CARD32 minor_version = ev->data.l[2];    XClient *x_client = NewXClient (i18n_core, new_client);    if (ev->window != i18n_core->address.im_window)        return; 			/* incorrect connection request */    /*endif*/    if (major_version != 0  ||  minor_version != 0)    {        major_version =        minor_version = 0;        /* Only supporting only-CM & Property-with-CM method */    }    /*endif*/    _XRegisterFilterByType (dpy,                            x_client->accept_win,                            ClientMessage,                            ClientMessage,                            WaitXIMProtocol,                            ims);    event.xclient.type = ClientMessage;    event.xclient.display = dpy;    event.xclient.window = new_client;    event.xclient.message_type = spec->connect_request;    event.xclient.format = 32;    event.xclient.data.l[0] = x_client->accept_win;    event.xclient.data.l[1] = major_version;    event.xclient.data.l[2] = minor_version;    event.xclient.data.l[3] = XCM_DATA_LIMIT;    XSendEvent (dpy,                new_client,                False,                NoEventMask,                &event);    XFlush (dpy);}static Bool Xi18nXBegin (XIMS ims){    Xi18n i18n_core = ims->protocol;    Display *dpy = i18n_core->address.dpy;    XSpecRec *spec = (XSpecRec *) i18n_core->address.connect_addr;    spec->xim_request = XInternAtom (i18n_core->address.dpy,                                     _XIM_PROTOCOL,                                     False);    spec->connect_request = XInternAtom (i18n_core->address.dpy,                                         _XIM_XCONNECT,                                         False);    _XRegisterFilterByType (dpy,                            i18n_core->address.im_window,                            ClientMessage,                            ClientMessage,                            WaitXConnectMessage,                            ims);    return True;}static Bool Xi18nXEnd(XIMS ims){    Xi18n i18n_core = ims->protocol;    Display *dpy = i18n_core->address.dpy;    _XUnregisterFilter (dpy,                        i18n_core->address.im_window,                        WaitXConnectMessage,                        ims);    return True;}