/*

Copyright 1993, 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.

*/

/*

 * Author: Ralph Mor, X Consortium

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <X11/SM/SMlib.h>

#include "SMlibint.h"

#include <X11/Xtrans/Xtrans.h>

#ifdef __UNIXWARE__

#undef shutdown

#endif

static Status

_SmsProtocolSetupProc (IceConn    iceConn,

		       int majorVersion,

		       int minorVersion,

		       char *vendor,

		       char *release,

		       IcePointer *clientDataRet,

		       char **failureReasonRet)

{

    SmsConn  		smsConn;

    unsigned long 	mask;

    Status		status;

    /*

     * vendor/release are undefined for ProtocolSetup in XSMP.

     */

    if (vendor)

	free (vendor);

    if (release)

	free (release);

    /*

     * Allocate new SmsConn.

     */

    if ((smsConn = malloc (sizeof (struct _SmsConn))) == NULL)

    {

	const char *str = "Memory allocation failed";

	*failureReasonRet = strdup (str);

	return (0);

    }

    smsConn->iceConn = iceConn;

    smsConn->proto_major_version = majorVersion;

    smsConn->proto_minor_version = minorVersion;

    smsConn->client_id = NULL;

    smsConn->save_yourself_in_progress = False;

    smsConn->interaction_allowed = SmInteractStyleNone;

    smsConn->can_cancel_shutdown = False;

    smsConn->interact_in_progress = False;

    *clientDataRet = (IcePointer) smsConn;

    /*

     * Now give the session manager the new smsConn and get back the

     * callbacks to invoke when messages arrive from the client.

     *

     * In the future, we can use the mask return value to check

     * if the SM is expecting an older rev of SMlib.

     */

    bzero ((char *) &smsConn->callbacks, sizeof (SmsCallbacks));

    status = (*_SmsNewClientProc) (smsConn, _SmsNewClientData,

	&mask, &smsConn->callbacks, failureReasonRet);

    return (status);

}

Status

SmsInitialize(const char *vendor, const char *release,

	      SmsNewClientProc newClientProc,

	      SmPointer managerData, IceHostBasedAuthProc hostBasedAuthProc,

	      int errorLength, char *errorStringRet)

{

    const char *auth_names[] = {"MIT-MAGIC-COOKIE-1"};

    IcePaAuthProc auth_procs[] = {_IcePaMagicCookie1Proc};

    int auth_count = 1;

    IcePaVersionRec versions[] = {

        {SmProtoMajor, SmProtoMinor, _SmsProcessMessage}

    };

    int version_count = 1;

    if (errorStringRet && errorLength > 0)

	*errorStringRet = '\0';

    if (!newClientProc)

    {

	if (errorStringRet && errorLength > 0) {

	    strncpy (errorStringRet,

		     "The SmsNewClientProc callback can't be NULL",

		     errorLength);

	    errorStringRet[errorLength - 1] = '\0';

	}

	return (0);

    }

    if (!_SmsOpcode)

    {

	if ((_SmsOpcode = IceRegisterForProtocolReply ("XSMP",

	    vendor, release, version_count, versions,

	    auth_count, auth_names, auth_procs, hostBasedAuthProc,

	    _SmsProtocolSetupProc,

	    NULL,	/* IceProtocolActivateProc - we don't care about

			   when the Protocol Reply is sent, because the

			   session manager can not immediately send a

			   message - it must wait for RegisterClient. */

	    NULL	/* IceIOErrorProc */

            )) < 0)

	{

	    if (errorStringRet && errorLength > 0) {

		strncpy (errorStringRet,

			 "Could not register XSMP protocol with ICE",

			 errorLength);

		errorStringRet[errorLength - 1] = '\0';

	    }

	    return (0);

	}

    }

    _SmsNewClientProc = newClientProc;

    _SmsNewClientData = managerData;

    return (1);

}

char *

SmsClientHostName(SmsConn smsConn)

{

    return (IceGetPeerName (smsConn->iceConn));

}

Status

SmsRegisterClientReply(SmsConn smsConn, char *clientId)

{

    IceConn			iceConn = smsConn->iceConn;

    size_t			extra;

    smRegisterClientReplyMsg 	*pMsg;

    char 			*pData;

    if ((smsConn->client_id = strdup (clientId)) == NULL)

    {

	return (0);

    }

    extra = ARRAY8_BYTES (strlen (clientId));

    IceGetHeaderExtra (iceConn, _SmsOpcode, SM_RegisterClientReply,

	SIZEOF (smRegisterClientReplyMsg), WORD64COUNT (extra),

	smRegisterClientReplyMsg, pMsg, pData);

    STORE_ARRAY8 (pData, strlen (clientId), clientId);

    IceFlush (iceConn);

    return (1);

}

void

SmsSaveYourself(SmsConn smsConn, int saveType, Bool shutdown,

		int interactStyle, Bool fast)

{

    IceConn		iceConn = smsConn->iceConn;

    smSaveYourselfMsg	*pMsg;

    IceGetHeader (iceConn, _SmsOpcode, SM_SaveYourself,

	SIZEOF (smSaveYourselfMsg), smSaveYourselfMsg, pMsg);

    pMsg->saveType = saveType;

    pMsg->shutdown = shutdown;

    pMsg->interactStyle = interactStyle;

    pMsg->fast = fast;

    IceFlush (iceConn);

    smsConn->save_yourself_in_progress = True;

    if (interactStyle == SmInteractStyleNone ||

	interactStyle == SmInteractStyleErrors ||

	interactStyle == SmInteractStyleAny)

    {

	smsConn->interaction_allowed = interactStyle;

    }

    else

    {

	smsConn->interaction_allowed = SmInteractStyleNone;

    }

    smsConn->can_cancel_shutdown = shutdown &&

	(interactStyle == SmInteractStyleAny ||

	interactStyle == SmInteractStyleErrors);

}

void

SmsSaveYourselfPhase2(SmsConn smsConn)

{

    IceConn	iceConn = smsConn->iceConn;

    IceSimpleMessage (iceConn, _SmsOpcode, SM_SaveYourselfPhase2);

    IceFlush (iceConn);

}

void

SmsInteract(SmsConn smsConn)

{

    IceConn	iceConn = smsConn->iceConn;

    IceSimpleMessage (iceConn, _SmsOpcode, SM_Interact);

    IceFlush (iceConn);

    smsConn->interact_in_progress = True;

}

void

SmsDie(SmsConn smsConn)

{

    IceConn	iceConn = smsConn->iceConn;

    IceSimpleMessage (iceConn, _SmsOpcode, SM_Die);

    IceFlush (iceConn);

}

void

SmsSaveComplete(SmsConn smsConn)

{

    IceConn	iceConn = smsConn->iceConn;

    IceSimpleMessage (iceConn, _SmsOpcode, SM_SaveComplete);

    IceFlush (iceConn);

}

void

SmsShutdownCancelled(SmsConn smsConn)

{

    IceConn	iceConn = smsConn->iceConn;

    IceSimpleMessage (iceConn, _SmsOpcode, SM_ShutdownCancelled);

    IceFlush (iceConn);

    smsConn->can_cancel_shutdown = False;

}

void

SmsReturnProperties(SmsConn smsConn, int numProps, SmProp **props)

{

    IceConn			iceConn = smsConn->iceConn;

    unsigned int		bytes;

    smPropertiesReplyMsg	*pMsg;

    char 			*pBuf;

    char			*pStart;

    IceGetHeader (iceConn, _SmsOpcode, SM_PropertiesReply,

	SIZEOF (smPropertiesReplyMsg), smPropertiesReplyMsg, pMsg);

    LISTOF_PROP_BYTES (numProps, props, bytes);

    pMsg->length += WORD64COUNT (bytes);

    pBuf = pStart = IceAllocScratch (iceConn, bytes);

    STORE_LISTOF_PROPERTY (pBuf, numProps, props);

    IceWriteData (iceConn, bytes, pStart);

    IceFlush (iceConn);

}

void

SmsCleanUp(SmsConn smsConn)

{

    IceProtocolShutdown (smsConn->iceConn, _SmsOpcode);

    if (smsConn->client_id)

	free (smsConn->client_id);

    free (smsConn);

}