/* $XConsortium: sm_process.c,v 1.28 94/04/17 20:16:57 mor Exp mor $ */

/*

Copyright (c) 1993  X Consortium

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

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 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 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.

*/

/*
 * Author: Ralph Mor, X Consortium
 */

#include <X11/SM/SMlib.h>
#include "SMlibint.h"


/*
 * Check for bad length
 */

#define CHECK_SIZE_MATCH(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _severity) \
    if ((((_actual_len) - SIZEOF (iceMsg)) >> 3) != _expected_len) \
    { \
       _IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \
       return; \
    }

#define CHECK_AT_LEAST_SIZE(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _severity) \
    if ((((_actual_len) - SIZEOF (iceMsg)) >> 3) > _expected_len) \
    { \
       _IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \
       return; \
    }

#define CHECK_COMPLETE_SIZE(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _pStart, _severity) \
    if (((PADDED_BYTES64((_actual_len)) - SIZEOF (iceMsg)) >> 3) \
        != _expected_len) \
    { \
       _IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \
       IceDisposeCompleteMessage (iceConn, _pStart); \
       return; \
    }



void
_SmcProcessMessage (iceConn, clientData, opcode,
    length, swap, replyWait, replyReadyRet)

IceConn		 iceConn;
IcePointer	 clientData;
int		 opcode;
unsigned long	 length;
Bool		 swap;
IceReplyWaitInfo *replyWait;
Bool		 *replyReadyRet;

{
    SmcConn	smcConn = (SmcConn) clientData;

    if (replyWait)
	*replyReadyRet = False;

    if (!smcConn->client_id &&
        opcode != SM_RegisterClientReply && opcode != SM_Error)
    {
	_IceReadSkip (iceConn, length << 3);

	_IceErrorBadState (iceConn, _SmcOpcode, opcode, IceFatalToProtocol);
	return;
    }

    switch (opcode)
    {
    case SM_Error:
    {
	iceErrorMsg 	*pMsg;
	char	    	*pData;

	CHECK_AT_LEAST_SIZE (iceConn, _SmcOpcode, opcode,
	    length, SIZEOF (iceErrorMsg), IceFatalToProtocol);

	IceReadCompleteMessage (iceConn, SIZEOF (iceErrorMsg),
	    iceErrorMsg, pMsg, pData);

	if (!IceValidIO (iceConn))
	{
	    IceDisposeCompleteMessage (iceConn, pData);
	    return;
	}

	if (swap)
	{
	    pMsg->errorClass = lswaps (pMsg->errorClass);
	    pMsg->offendingSequenceNum = lswapl (pMsg->offendingSequenceNum);
	}

	if (replyWait &&
	    replyWait->minor_opcode_of_request == SM_RegisterClient &&
            pMsg->errorClass == IceBadValue &&
	    pMsg->offendingMinorOpcode == SM_RegisterClient &&
	    pMsg->offendingSequenceNum == replyWait->sequence_of_request)
	{
	    /*
	     * For Register Client, the previous ID was bad.
	     */

	    _SmcRegisterClientReply *reply =
		(_SmcRegisterClientReply *) (replyWait->reply);

	    reply->status = 0;

	    *replyReadyRet = True;
	}
	else
	{
	    (*_SmcErrorHandler) (smcConn, swap,
		pMsg->offendingMinorOpcode,
	        pMsg->offendingSequenceNum,
		pMsg->errorClass, pMsg->severity,
		(SmPointer) pData);
	}

	IceDisposeCompleteMessage (iceConn, pData);
	break;
    }

    case SM_RegisterClientReply:

	if (!replyWait ||
	    replyWait->minor_opcode_of_request != SM_RegisterClient)
	{
	    _IceReadSkip (iceConn, length << 3);

	    _IceErrorBadState (iceConn, _SmcOpcode,
		SM_RegisterClientReply, IceFatalToProtocol);
	}
        else
	{
	    smRegisterClientReplyMsg 	*pMsg;
	    char			*pData, *pStart;
	    _SmcRegisterClientReply 	*reply = 
	        (_SmcRegisterClientReply *) (replyWait->reply);

	    CHECK_AT_LEAST_SIZE (iceConn, _SmcOpcode, opcode,
		length, SIZEOF (smRegisterClientReplyMsg), IceFatalToProtocol);

	    IceReadCompleteMessage (iceConn, SIZEOF (smRegisterClientReplyMsg),
		smRegisterClientReplyMsg, pMsg, pStart);

	    if (!IceValidIO (iceConn))
	    {
		IceDisposeCompleteMessage (iceConn, pStart);
		return;
	    }

	    pData = pStart;

	    SKIP_ARRAY8 (pData, swap);		/* client id */

	    CHECK_COMPLETE_SIZE (iceConn, _SmcOpcode, opcode,
		length, pData - pStart + SIZEOF (smRegisterClientReplyMsg),
		pStart, IceFatalToProtocol);

	    pData = pStart;

	    EXTRACT_ARRAY8_AS_STRING (pData, swap, reply->client_id);

	    reply->status = 1;
	    *replyReadyRet = True;

	    IceDisposeCompleteMessage (iceConn, pStart);
	}
	break;

    case SM_SaveYourself:
    {
	smSaveYourselfMsg 	*pMsg;
	unsigned char		errVal;
	int			errOffset = -1;

	CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode,
	    length, SIZEOF (smSaveYourselfMsg),
	    IceFatalToProtocol);

	IceReadMessageHeader (iceConn, SIZEOF (smSaveYourselfMsg),
	    smSaveYourselfMsg, pMsg);

	if (!IceValidIO (iceConn))
	{
	    return;
	}

	if (pMsg->saveType != SmSaveGlobal &&
	    pMsg->saveType != SmSaveLocal &&
	    pMsg->saveType != SmSaveBoth)
	{
	    errVal = pMsg->saveType;
	    errOffset = 8;
	}
	else if (pMsg->shutdown != 1 && pMsg->shutdown != 0)
	{
	    errVal = pMsg->shutdown;
	    errOffset = 9;
	}
	else if (pMsg->interactStyle != SmInteractStyleNone &&
	    pMsg->interactStyle != SmInteractStyleErrors &&
	    pMsg->interactStyle != SmInteractStyleAny)
	{
	    errVal = pMsg->interactStyle;
	    errOffset = 10;
	}
	else if (pMsg->fast != 1 && pMsg->fast != 0)
	{
	    errVal = pMsg->fast;
	    errOffset = 11;
	}

	if (errOffset >= 0)
	{
	    _IceErrorBadValue (iceConn, _SmcOpcode,
	        SM_SaveYourself, errOffset, 1, (IcePointer) &errVal);
	}
	else
	{
	    (*smcConn->callbacks.save_yourself.callback) (smcConn,
	        smcConn->callbacks.save_yourself.client_data,
                pMsg->saveType, pMsg->shutdown,
		pMsg->interactStyle, pMsg->fast);

	    smcConn->save_yourself_in_progress = True;

	    if (pMsg->shutdown)
		smcConn->shutdown_in_progress = True;
	}
	break;
    }

    case SM_SaveYourselfPhase2:

	if (!smcConn->phase2_wait)
	{
	    _IceErrorBadState (iceConn, _SmcOpcode,
		SM_SaveYourselfPhase2, IceCanContinue);
	}
        else
	{
	    CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode,
	        length, SIZEOF (smSaveYourselfPhase2Msg),
	        IceFatalToProtocol);

	    (*smcConn->phase2_wait->phase2_proc) (smcConn,
		smcConn->phase2_wait->client_data);

	    free ((char *) smcConn->phase2_wait);
	    smcConn->phase2_wait  = NULL;
	}
	break;

    case SM_Interact:

        if (!smcConn->interact_waits)
	{
	    _IceErrorBadState (iceConn, _SmcOpcode,
		SM_Interact, IceCanContinue);
	}
        else
	{
	    _SmcInteractWait *next = smcConn->interact_waits->next;

	    CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode,
	        length, SIZEOF (smInteractMsg),
	        IceFatalToProtocol);

	    (*smcConn->interact_waits->interact_proc) (smcConn,
		smcConn->interact_waits->client_data);

	    free ((char *) smcConn->interact_waits);
	    smcConn->interact_waits = next;
	}
	break;

    case SM_SaveComplete:

	if (!smcConn->save_yourself_in_progress)
	{
	    _IceErrorBadState (iceConn, _SmcOpcode,
		SM_SaveComplete, IceCanContinue);
	}
	else
	{
	    CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode,
	        length, SIZEOF (smSaveCompleteMsg),
	        IceFatalToProtocol);

	    smcConn->save_yourself_in_progress = False;

	    (*smcConn->callbacks.save_complete.callback) (smcConn,
	        smcConn->callbacks.save_complete.client_data);
	}
	break;

    case SM_Die:

	CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode,
	    length, SIZEOF (smDieMsg),
	    IceFatalToProtocol);

	(*smcConn->callbacks.die.callback) (smcConn,
	    smcConn->callbacks.die.client_data);
	break;

    case SM_ShutdownCancelled:

	if (!smcConn->shutdown_in_progress)
	{
	    _IceErrorBadState (iceConn, _SmcOpcode,
		SM_ShutdownCancelled, IceCanContinue);
	}
	else
	{
	    CHECK_SIZE_MATCH (iceConn, _SmcOpcode, opcode,
	        length, SIZEOF (smShutdownCancelledMsg),
	        IceFatalToProtocol);

	    smcConn->shutdown_in_progress = False;

	    (*smcConn->callbacks.shutdown_cancelled.callback) (smcConn,
	        smcConn->callbacks.shutdown_cancelled.client_data);
	}
	break;

    case SM_PropertiesReply:

        if (!smcConn->prop_reply_waits)
	{
	    _IceReadSkip (iceConn, length << 3);

	    _IceErrorBadState (iceConn, _SmcOpcode,
		SM_PropertiesReply, IceCanContinue);
	}
        else
	{
	    smPropertiesReplyMsg 	*pMsg;
	    char 			*pData, *pStart;
	    int				numProps;
	    SmProp			**props = NULL;
	    _SmcPropReplyWait 		*next;

	    CHECK_AT_LEAST_SIZE (iceConn, _SmcOpcode, opcode,
		length, SIZEOF (smPropertiesReplyMsg), IceFatalToProtocol);

	    IceReadCompleteMessage (iceConn, SIZEOF (smPropertiesReplyMsg),
		smPropertiesReplyMsg, pMsg, pStart);

	    if (!IceValidIO (iceConn))
	    {
		IceDisposeCompleteMessage (iceConn, pStart);
		return;
	    }

	    pData = pStart;

	    SKIP_LISTOF_PROPERTY (pData, swap);

	    CHECK_COMPLETE_SIZE (iceConn, _SmcOpcode, opcode,
	        length, pData - pStart + SIZEOF (smPropertiesReplyMsg),
	        pStart, IceFatalToProtocol);

	    pData = pStart;

	    EXTRACT_LISTOF_PROPERTY (pData, swap, numProps, props);

	    next = smcConn->prop_reply_waits->next;

	    (*smcConn->prop_reply_waits->prop_reply_proc) (smcConn,
		smcConn->prop_reply_waits->client_data, numProps, props);

	    free ((char *) smcConn->prop_reply_waits);
	    smcConn->prop_reply_waits = next;

	    IceDisposeCompleteMessage (iceConn, pStart);
	}
	break;

    default:
    {
	_IceErrorBadMinor (iceConn, _SmcOpcode, opcode, IceCanContinue);
	_IceReadSkip (iceConn, length << 3);
	break;
    }
    }
}



void
_SmsProcessMessage (iceConn, clientData, opcode, length, swap)

IceConn		 iceConn;
IcePointer       clientData;
int		 opcode;
unsigned long	 length;
Bool		 swap;

{
    SmsConn	smsConn = (SmsConn) clientData;

    if (!smsConn->client_id &&
        opcode != SM_RegisterClient && opcode != SM_Error)
    {
	_IceReadSkip (iceConn, length << 3);

	_IceErrorBadState (iceConn, _SmsOpcode, opcode, IceFatalToProtocol);

	return;
    }

    switch (opcode)
    {
    case SM_Error:
    {
	iceErrorMsg 	*pMsg;
	char	    	*pData;

	CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode,
	    length, SIZEOF (iceErrorMsg), IceFatalToProtocol);

	IceReadCompleteMessage (iceConn, SIZEOF (iceErrorMsg),
	    iceErrorMsg, pMsg, pData);

	if (!IceValidIO (iceConn))
	{
	    IceDisposeCompleteMessage (iceConn, pData);
	    return;
	}

	if (swap)
	{
	    pMsg->errorClass = lswaps (pMsg->errorClass);
	    pMsg->offendingSequenceNum = lswapl (pMsg->offendingSequenceNum);
	}

	(*_SmsErrorHandler) (smsConn, swap,
	    pMsg->offendingMinorOpcode,
	    pMsg->offendingSequenceNum,
	    pMsg->errorClass, pMsg->severity,
            (SmPointer) pData);

	IceDisposeCompleteMessage (iceConn, pData);
	break;
    }

    case SM_RegisterClient:
    {
	smRegisterClientMsg 	*pMsg;
	char 			*pData, *pStart;
	char 			*previousId;

	CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode,
	    length, SIZEOF (smRegisterClientMsg), IceFatalToProtocol);

	IceReadCompleteMessage (iceConn, SIZEOF (smRegisterClientMsg),
	    smRegisterClientMsg, pMsg, pStart);

	if (!IceValidIO (iceConn))
	{
	    IceDisposeCompleteMessage (iceConn, pStart);
	    return;
	}

	pData = pStart;

	SKIP_ARRAY8 (pData, swap);	/* previous id */

	CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode,
	   length, pData - pStart + SIZEOF (smRegisterClientMsg),
	   pStart, IceFatalToProtocol);

	pData = pStart;

	EXTRACT_ARRAY8_AS_STRING (pData, swap, previousId);

	if (*previousId == '\0')
	{
	    free (previousId);
	    previousId = NULL;
	}

	if (!(*smsConn->callbacks.register_client.callback) (smsConn,
            smsConn->callbacks.register_client.manager_data, previousId))
	{
	    /*
	     * The previoudId was bad.  Generate BadValue error.
	     */

	    int length = previousId ? strlen (previousId) : 0;
	    int bytes = ARRAY8_BYTES (length);

	    _IceErrorBadValue (smsConn->iceConn, _SmsOpcode, SM_RegisterClient,
		8, bytes, (IcePointer) pStart);
	}

	IceDisposeCompleteMessage (iceConn, pStart);
	break;
    }

    case SM_InteractRequest:

        if (!smsConn->save_yourself_in_progress ||
	    smsConn->interaction_allowed == SmInteractStyleNone)
	{
	    _IceErrorBadState (iceConn, _SmsOpcode,
		SM_InteractRequest, IceCanContinue);
	}
        else
	{
	    smInteractRequestMsg 	*pMsg;

	    CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode,
	        length, SIZEOF (smInteractRequestMsg),
	        IceFatalToProtocol);

	    IceReadSimpleMessage (iceConn, smInteractRequestMsg, pMsg);

	    if (pMsg->dialogType != SmDialogNormal &&
		pMsg->dialogType != SmDialogError)
	    {
		unsigned char errVal = pMsg->dialogType;

		_IceErrorBadValue (iceConn, _SmsOpcode,
	            SM_InteractRequest, 2, 1, (IcePointer) &errVal);
	    }
	    else if (pMsg->dialogType == SmDialogNormal &&
		smsConn->interaction_allowed != SmInteractStyleAny)
	    {
		_IceErrorBadState (iceConn, _SmsOpcode,
		    SM_InteractRequest, IceCanContinue);
	    }
	    else
	    {
		(*smsConn->callbacks.interact_request.callback) (smsConn,
	            smsConn->callbacks.interact_request.manager_data,
		    pMsg->dialogType);
	    }
	}
	break;

    case SM_InteractDone:

        if (!smsConn->interact_in_progress)
	{
	    _IceErrorBadState (iceConn, _SmsOpcode,
		SM_InteractDone, IceCanContinue);
	}
        else
	{
	    smInteractDoneMsg 	*pMsg;

	    CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode,
	        length, SIZEOF (smInteractDoneMsg),
	        IceFatalToProtocol);

	    IceReadSimpleMessage (iceConn, smInteractDoneMsg, pMsg);

	    if (pMsg->cancelShutdown != 1 &&
		pMsg->cancelShutdown != 0)
	    {
		unsigned char errVal = pMsg->cancelShutdown;

		_IceErrorBadValue (iceConn, _SmsOpcode,
	            SM_InteractDone, 2, 1, (IcePointer) &errVal);
	    }
	    else if (pMsg->cancelShutdown && !smsConn->can_cancel_shutdown)
	    {
		_IceErrorBadState (iceConn, _SmsOpcode,
		    SM_InteractDone, IceCanContinue);
	    }
	    else
	    {
		smsConn->interact_in_progress = False;

		(*smsConn->callbacks.interact_done.callback) (smsConn,
	            smsConn->callbacks.interact_done.manager_data,
	            pMsg->cancelShutdown);
	    }
	}
	break;

    case SM_SaveYourselfRequest:
    {
	smSaveYourselfRequestMsg 	*pMsg;
	unsigned char			errVal;
	int				errOffset = -1;

	CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode,
	    length, SIZEOF (smSaveYourselfRequestMsg),
	    IceFatalToProtocol);

	IceReadMessageHeader (iceConn, SIZEOF (smSaveYourselfRequestMsg),
	    smSaveYourselfRequestMsg, pMsg);

	if (!IceValidIO (iceConn))
	{
	    IceDisposeCompleteMessage (iceConn, pMsg);
	    return;
	}

	if (pMsg->saveType != SmSaveGlobal &&
	    pMsg->saveType != SmSaveLocal &&
	    pMsg->saveType != SmSaveBoth)
	{
	    errVal = pMsg->saveType;
	    errOffset = 8;
	}
	else if (pMsg->shutdown != 1 && pMsg->shutdown != 0)
	{
	    errVal = pMsg->shutdown;
	    errOffset = 9;
	}
	else if (pMsg->interactStyle != SmInteractStyleNone &&
	    pMsg->interactStyle != SmInteractStyleErrors &&
	    pMsg->interactStyle != SmInteractStyleAny)
	{
	    errVal = pMsg->interactStyle;
	    errOffset = 10;
	}
	else if (pMsg->fast != 1 && pMsg->fast != 0)
	{
	    errVal = pMsg->fast;
	    errOffset = 11;
	}
	else if (pMsg->global != 1 && pMsg->global != 0)
	{
	    errVal = pMsg->fast;
	    errOffset = 11;
	}

	if (errOffset >= 0)
	{
	    _IceErrorBadValue (iceConn, _SmsOpcode,
	        SM_SaveYourselfRequest, errOffset, 1, (IcePointer) &errVal);
	}
	else
	{
	    (*smsConn->callbacks.save_yourself_request.callback) (smsConn,
	        smsConn->callbacks.save_yourself_request.manager_data,
                pMsg->saveType, pMsg->shutdown, pMsg->interactStyle,
	        pMsg->fast, pMsg->global);
	}
	break;
    }

    case SM_SaveYourselfPhase2Request:

        if (!smsConn->save_yourself_in_progress)
	{
	    _IceErrorBadState (iceConn, _SmsOpcode,
		SM_SaveYourselfPhase2Request, IceCanContinue);
	}
        else
	{
	    CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode,
	        length, SIZEOF (smSaveYourselfPhase2RequestMsg),
	        IceFatalToProtocol);

	    (*smsConn->callbacks.save_yourself_phase2_request.callback) (
		smsConn, smsConn->callbacks.
		save_yourself_phase2_request.manager_data);
	}
	break;

    case SM_SaveYourselfDone:

        if (!smsConn->save_yourself_in_progress)
	{
	    _IceErrorBadState (iceConn, _SmsOpcode,
		SM_SaveYourselfDone, IceCanContinue);
	}
        else
	{
	    smSaveYourselfDoneMsg 	*pMsg;

	    CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode,
	        length, SIZEOF (smSaveYourselfDoneMsg),
	        IceFatalToProtocol);

	    IceReadSimpleMessage (iceConn, smSaveYourselfDoneMsg, pMsg);

	    if (pMsg->success != 1 && pMsg->success != 0)
	    {
		unsigned char errVal = pMsg->success;

		_IceErrorBadValue (iceConn, _SmsOpcode,
	            SM_SaveYourselfDone, 2, 1, (IcePointer) &errVal);
	    }
	    else
	    {
		smsConn->save_yourself_in_progress = False;
		smsConn->interaction_allowed = SmInteractStyleNone;

		(*smsConn->callbacks.save_yourself_done.callback) (smsConn,
	            smsConn->callbacks.save_yourself_done.manager_data,
		    pMsg->success);
	    }
	}
	break;

    case SM_CloseConnection:
    {
	smCloseConnectionMsg 	*pMsg;
	char 			*pData, *pStart;
	int 			count, i;
	char 			**reasonMsgs = NULL;

	CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode,
	    length, SIZEOF (smCloseConnectionMsg), IceFatalToProtocol);

	IceReadCompleteMessage (iceConn, SIZEOF (smCloseConnectionMsg),
	    smCloseConnectionMsg, pMsg, pStart);

	if (!IceValidIO (iceConn))
	{
	    IceDisposeCompleteMessage (iceConn, pStart);
	    return;
	}

	pData = pStart;

	EXTRACT_CARD32 (pData, swap, count);
	pData += 4;

	for (i = 0; i < count; i++)
	    SKIP_ARRAY8 (pData, swap);

	CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode,
	   length, pData - pStart + SIZEOF (smCloseConnectionMsg),
	   pStart, IceFatalToProtocol);

	pData = pStart + 8;

	reasonMsgs = (char **) malloc (count * sizeof (char *));
	for (i = 0; i < count; i++)
	    EXTRACT_ARRAY8_AS_STRING (pData, swap, reasonMsgs[i]);

	IceDisposeCompleteMessage (iceConn, pStart);

	(*smsConn->callbacks.close_connection.callback) (smsConn,
	    smsConn->callbacks.close_connection.manager_data,
	    count, reasonMsgs);
	break;
    }

    case SM_SetProperties:
    {
	smSetPropertiesMsg 	*pMsg;
	char 			*pData, *pStart;
	SmProp			**props = NULL;
	int 			numProps;
	
	CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode,
	    length, SIZEOF (smSetPropertiesMsg), IceFatalToProtocol);

	IceReadCompleteMessage (iceConn, SIZEOF (smSetPropertiesMsg),
	    smSetPropertiesMsg, pMsg, pStart);

	if (!IceValidIO (iceConn))
	{
	    IceDisposeCompleteMessage (iceConn, pStart);
	    return;
	}

	pData = pStart;

	SKIP_LISTOF_PROPERTY (pData, swap);

	CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode,
	   length, pData - pStart + SIZEOF (smSetPropertiesMsg),
	   pStart, IceFatalToProtocol);

	pData = pStart;

	EXTRACT_LISTOF_PROPERTY (pData, swap, numProps, props);

	(*smsConn->callbacks.set_properties.callback) (smsConn,
	    smsConn->callbacks.set_properties.manager_data, numProps, props);

	IceDisposeCompleteMessage (iceConn, pStart);
	break;
    }

    case SM_DeleteProperties:
    {
	smDeletePropertiesMsg 	*pMsg;
	char 			*pData, *pStart;
	int 			count, i;
	char 			**propNames = NULL;

	CHECK_AT_LEAST_SIZE (iceConn, _SmsOpcode, opcode,
	    length, SIZEOF (smDeletePropertiesMsg), IceFatalToProtocol);

	IceReadCompleteMessage (iceConn, SIZEOF (smDeletePropertiesMsg),
	    smDeletePropertiesMsg, pMsg, pStart);

	if (!IceValidIO (iceConn))
	{
	    IceDisposeCompleteMessage (iceConn, pStart);
	    return;
	}

	pData = pStart;

	EXTRACT_CARD32 (pData, swap, count);
	pData += 4;

	for (i = 0; i < count; i++)
	    SKIP_ARRAY8 (pData, swap);	/* prop names */

	CHECK_COMPLETE_SIZE (iceConn, _SmsOpcode, opcode,
	   length, pData - pStart + SIZEOF (smDeletePropertiesMsg),
	   pStart, IceFatalToProtocol);

	pData = pStart + 8;

	propNames = (char **) malloc (count * sizeof (char *));
	for (i = 0; i < count; i++)
	    EXTRACT_ARRAY8_AS_STRING (pData, swap, propNames[i]);

	IceDisposeCompleteMessage (iceConn, pStart);

	(*smsConn->callbacks.delete_properties.callback) (smsConn,
	    smsConn->callbacks.delete_properties.manager_data,
	    count, propNames);

	break;
    }

    case SM_GetProperties:

	CHECK_SIZE_MATCH (iceConn, _SmsOpcode, opcode,
	    length, SIZEOF (smGetPropertiesMsg),
	    IceFatalToProtocol);

	(*smsConn->callbacks.get_properties.callback) (smsConn,
	    smsConn->callbacks.get_properties.manager_data);
	break;

    default:
    {
	_IceErrorBadMinor (iceConn, _SmsOpcode, opcode, IceCanContinue);
	_IceReadSkip (iceConn, length << 3);
	break;
    }
    }
}