/* 
   Unix SMB/CIFS implementation.
   RPC pipe client

   Copyright (C) Gerald Carter                2001-2002,
   Copyright (C) Tim Potter                   2000-2002,
   Copyright (C) Andrew Tridgell              1994-2000,
   Copyright (C) Luke Kenneth Casson Leighton 1996-2000,
   Copyright (C) Jean-Francois Micouleau      1999-2000.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"

/** @defgroup spoolss SPOOLSS - NT printing routines
 *  @ingroup rpc_client
 *
 * @{
 **/

/** Opens a SMB connection and connects to the SPOOLSS pipe.
 *
 * @param cli Uninitialised client handle.
 * @param system_name NETBIOS name of the machine to connect to.
 * @param creds User credentials to connect as.
 * @returns Initialised client handle.
 */
struct cli_state *cli_spoolss_initialise(struct cli_state *cli, 
					 char *system_name,
					 struct ntuser_creds *creds)
{
        return cli_pipe_initialise(cli, system_name, PIPE_SPOOLSS, creds);
}


/**********************************************************************
 Initialize a new spoolss buff for use by a client rpc
**********************************************************************/
static void init_buffer(NEW_BUFFER *buffer, uint32 size, TALLOC_CTX *ctx)
{
	buffer->ptr = (size != 0);
	buffer->size = size;
	buffer->string_at_end = size;
	prs_init(&buffer->prs, size, ctx, MARSHALL);
	buffer->struct_start = prs_offset(&buffer->prs);
}

/********************************************************************* 
 Decode various spoolss rpc's and info levels 
 ********************************************************************/

/**********************************************************************
**********************************************************************/
static void decode_printer_info_0(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
				uint32 returned, PRINTER_INFO_0 **info)
{
        uint32 i;
        PRINTER_INFO_0  *inf;

        inf=(PRINTER_INFO_0 *)talloc(mem_ctx, returned*sizeof(PRINTER_INFO_0));

        buffer->prs.data_offset=0;

        for (i=0; i<returned; i++) {
                smb_io_printer_info_0("", buffer, &inf[i], 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_printer_info_1(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
				uint32 returned, PRINTER_INFO_1 **info)
{
        uint32 i;
        PRINTER_INFO_1  *inf;

        inf=(PRINTER_INFO_1 *)talloc(mem_ctx, returned*sizeof(PRINTER_INFO_1));

        buffer->prs.data_offset=0;

        for (i=0; i<returned; i++) {
                smb_io_printer_info_1("", buffer, &inf[i], 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_printer_info_2(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
				uint32 returned, PRINTER_INFO_2 **info)
{
        uint32 i;
        PRINTER_INFO_2  *inf;

        inf=(PRINTER_INFO_2 *)talloc(mem_ctx, returned*sizeof(PRINTER_INFO_2));

        buffer->prs.data_offset=0;

        for (i=0; i<returned; i++) {
		/* a little initialization as we go */
		inf[i].secdesc = NULL;
                smb_io_printer_info_2("", buffer, &inf[i], 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_printer_info_3(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
				uint32 returned, PRINTER_INFO_3 **info)
{
        uint32 i;
        PRINTER_INFO_3  *inf;

        inf=(PRINTER_INFO_3 *)talloc(mem_ctx, returned*sizeof(PRINTER_INFO_3));

        buffer->prs.data_offset=0;

        for (i=0; i<returned; i++) {
		inf[i].secdesc = NULL;
                smb_io_printer_info_3("", buffer, &inf[i], 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_port_info_1(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
			uint32 returned, PORT_INFO_1 **info)
{
        uint32 i;
        PORT_INFO_1 *inf;

        inf=(PORT_INFO_1*)talloc(mem_ctx, returned*sizeof(PORT_INFO_1));

        prs_set_offset(&buffer->prs, 0);

        for (i=0; i<returned; i++) {
                smb_io_port_info_1("", buffer, &(inf[i]), 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_port_info_2(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
			uint32 returned, PORT_INFO_2 **info)
{
        uint32 i;
        PORT_INFO_2 *inf;

        inf=(PORT_INFO_2*)talloc(mem_ctx, returned*sizeof(PORT_INFO_2));

        prs_set_offset(&buffer->prs, 0);

        for (i=0; i<returned; i++) {
                smb_io_port_info_2("", buffer, &(inf[i]), 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_printer_driver_1(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
			uint32 returned, DRIVER_INFO_1 **info)
{
        uint32 i;
        DRIVER_INFO_1 *inf;

        inf=(DRIVER_INFO_1 *)talloc(mem_ctx, returned*sizeof(DRIVER_INFO_1));

        buffer->prs.data_offset=0;

        for (i=0; i<returned; i++) {
                smb_io_printer_driver_info_1("", buffer, &(inf[i]), 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_printer_driver_2(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
			uint32 returned, DRIVER_INFO_2 **info)
{
        uint32 i;
        DRIVER_INFO_2 *inf;

        inf=(DRIVER_INFO_2 *)talloc(mem_ctx, returned*sizeof(DRIVER_INFO_2));

        buffer->prs.data_offset=0;

        for (i=0; i<returned; i++) {
                smb_io_printer_driver_info_2("", buffer, &(inf[i]), 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_printer_driver_3(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
			uint32 returned, DRIVER_INFO_3 **info)
{
        uint32 i;
        DRIVER_INFO_3 *inf;

        inf=(DRIVER_INFO_3 *)talloc(mem_ctx, returned*sizeof(DRIVER_INFO_3));

        buffer->prs.data_offset=0;

        for (i=0; i<returned; i++) {
                smb_io_printer_driver_info_3("", buffer, &(inf[i]), 0);
        }

        *info=inf;
}

/**********************************************************************
**********************************************************************/
static void decode_printerdriverdir_1 (TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer,
			uint32 returned, DRIVER_DIRECTORY_1 **info
)
{
	DRIVER_DIRECTORY_1 *inf;
 
        inf=(DRIVER_DIRECTORY_1 *)talloc(mem_ctx, sizeof(DRIVER_DIRECTORY_1));

        prs_set_offset(&buffer->prs, 0);

        smb_io_driverdir_1("", buffer, inf, 0);
 
	*info=inf;
}

/** Return a handle to the specified printer or print server.
 *
 * @param cli              Pointer to client state structure which is open
 * on the SPOOLSS pipe.
 *
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param printername      The name of the printer or print server to be
 * opened in UNC format.
 *
 * @param datatype         Specifies the default data type for the printer.
 *
 * @param access_required  The access rights requested on the printer or
 * print server.
 *
 * @param station          The UNC name of the requesting workstation.
 *
 * @param username         The name of the user requesting the open.
 *
 * @param pol              Returned policy handle.
 */

/*********************************************************************************
 Win32 API - OpenPrinter()
 ********************************************************************************/
 
WERROR cli_spoolss_open_printer_ex(struct cli_state *cli, TALLOC_CTX *mem_ctx,
				char *printername, char *datatype, uint32 access_required,
				char *station, char *username, POLICY_HND *pol)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_OPEN_PRINTER_EX q;
	SPOOL_R_OPEN_PRINTER_EX r;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Initialise input parameters */

        make_spoolss_q_open_printer_ex(&q, printername, datatype,
                                       access_required, station, username);
	
	/* Marshall data and send request */

	if (!spoolss_io_q_open_printer_ex("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_OPENPRINTEREX, &qbuf, &rbuf))
		goto done;

	/* Unmarshall response */

	if (!spoolss_io_r_open_printer_ex("", &r, &rbuf, 0))
		goto done;

	/* Return output parameters */

	result = r.status;

	if (W_ERROR_IS_OK(result))
		*pol = r.handle;

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}

/** Close a printer handle
 *
 * @param cli              Pointer to client state structure which is open
 * on the SPOOLSS pipe.
 *
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param pol              Policy handle of printer or print server to close.
 */
/*********************************************************************************
 Win32 API - ClosePrinter()
 ********************************************************************************/

WERROR cli_spoolss_close_printer(struct cli_state *cli, TALLOC_CTX *mem_ctx,
				POLICY_HND *pol)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_CLOSEPRINTER q;
	SPOOL_R_CLOSEPRINTER r;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Initialise input parameters */

        make_spoolss_q_closeprinter(&q, pol);
	
	/* Marshall data and send request */

	if (!spoolss_io_q_closeprinter("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_CLOSEPRINTER, &qbuf, &rbuf))
		goto done;

	/* Unmarshall response */

	if (!spoolss_io_r_closeprinter("", &r, &rbuf, 0))
		goto done;

	/* Return output parameters */

	result = r.status;

	if (W_ERROR_IS_OK(result))
		*pol = r.handle;

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}

/** Enumerate printers on a print server.
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param offered          Buffer size offered in the request.
 * @param needed           Number of bytes needed to complete the request.
 *                         may be NULL.
 *
 * @param flags            Selected from PRINTER_ENUM_* flags.
 * @param level            Request information level.
 *
 * @param num_printers     Pointer to number of printers returned.  May be
 *                         NULL.
 * @param ctr              Return structure for printer information.  May
 *                         be NULL.
 */
/*********************************************************************************
 Win32 API - EnumPrinters()
 ********************************************************************************/

WERROR cli_spoolss_enum_printers(struct cli_state *cli, TALLOC_CTX *mem_ctx,
				 uint32 offered, uint32 *needed,
				 uint32 flags, uint32 level,
				 uint32 *num_printers, PRINTER_INFO_CTR *ctr)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_ENUMPRINTERS q;
        SPOOL_R_ENUMPRINTERS r;
	NEW_BUFFER buffer;
	WERROR result = W_ERROR(ERRgeneral);
	fstring server;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	fstrcpy (server, cli->desthost);
	strupper (server);
	
		/* Initialise input parameters */

	init_buffer(&buffer, offered, mem_ctx);

		prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
		prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

		make_spoolss_q_enumprinters(&q, flags, server, level, &buffer, 
				    offered);

		/* Marshall data and send request */

		if (!spoolss_io_q_enumprinters("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_ENUMPRINTERS, &qbuf, &rbuf))
			goto done;

		/* Unmarshall response */

		if (spoolss_io_r_enumprinters("", &r, &rbuf, 0)) {
		if (needed)
			*needed = r.needed;
		}
		
	result = r.status;
		
	/* Return output parameters */

	if (!W_ERROR_IS_OK(r.status))
			goto done;
	
	if (num_printers)
		*num_printers = r.returned;

	if (!ctr)
		goto done;

			switch (level) {
			case 0:
				decode_printer_info_0(mem_ctx, r.buffer, r.returned, 
						      &ctr->printers_0);
				break;
			case 1:
				decode_printer_info_1(mem_ctx, r.buffer, r.returned, 
						      &ctr->printers_1);
				break;
			case 2:
				decode_printer_info_2(mem_ctx, r.buffer, r.returned, 
						      &ctr->printers_2);
				break;
			case 3:
				decode_printer_info_3(mem_ctx, r.buffer, r.returned, 
						      &ctr->printers_3);
				break;
			}			

	done:
		prs_mem_free(&qbuf);
		prs_mem_free(&rbuf);

	return result;	
}

/*********************************************************************************
 Win32 API - EnumPorts()
 ********************************************************************************/
/** Enumerate printer ports on a print server.
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param offered          Buffer size offered in the request.
 * @param needed           Number of bytes needed to complete the request.
 *                         May be NULL.
 *
 * @param level            Requested information level.
 *
 * @param num_ports        Pointer to number of ports returned.  May be NULL.
 * @param ctr              Pointer to structure holding port information.
 *                         May be NULL.
 */

WERROR cli_spoolss_enum_ports(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			      uint32 offered, uint32 *needed,
			      uint32 level, int *num_ports, PORT_INFO_CTR *ctr)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_ENUMPORTS q;
        SPOOL_R_ENUMPORTS r;
	NEW_BUFFER buffer;
	WERROR result = W_ERROR(ERRgeneral);
	fstring server;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

        slprintf (server, sizeof(fstring)-1, "\\\\%s", cli->desthost);
        strupper (server);

		/* Initialise input parameters */

	init_buffer(&buffer, offered, mem_ctx);

		prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
		prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	make_spoolss_q_enumports(&q, server, level, &buffer, offered);

		/* Marshall data and send request */

		if (!spoolss_io_q_enumports("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_ENUMPORTS, &qbuf, &rbuf))
			goto done;

		/* Unmarshall response */

		if (spoolss_io_r_enumports("", &r, &rbuf, 0)) {
		if (needed)
			*needed = r.needed;
		}
		
	result = r.status;

		/* Return output parameters */

	if (!W_ERROR_IS_OK(result))
		goto done;

	if (num_ports)
		*num_ports = r.returned;

	if (!ctr)
		goto done;

			switch (level) {
			case 1:
				decode_port_info_1(mem_ctx, r.buffer, r.returned, 
						   &ctr->port.info_1);
				break;
			case 2:
				decode_port_info_2(mem_ctx, r.buffer, r.returned, 
						   &ctr->port.info_2);
				break;
			}			

	done:
		prs_mem_free(&qbuf);
		prs_mem_free(&rbuf);

	return result;	
}

/*********************************************************************************
 Win32 API - GetPrinter()
 ********************************************************************************/

WERROR cli_spoolss_getprinter(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			      uint32 offered, uint32 *needed,
			      POLICY_HND *pol, uint32 level, 
			      PRINTER_INFO_CTR *ctr)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_GETPRINTER q;
	SPOOL_R_GETPRINTER r;
	NEW_BUFFER buffer;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

		/* Initialise input parameters */

	init_buffer(&buffer, offered, mem_ctx);

		prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
		prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	make_spoolss_q_getprinter(mem_ctx, &q, pol, level, &buffer, offered);

		/* Marshall data and send request */

		if (!spoolss_io_q_getprinter("", &q, &qbuf, 0) ||
		    !rpc_api_pipe_req(cli, SPOOLSS_GETPRINTER, &qbuf, &rbuf)) 
			goto done;

		/* Unmarshall response */

	if (!spoolss_io_r_getprinter("", &r, &rbuf, 0))
		goto done;

	if (needed)
		*needed = r.needed;
		
		/* Return output parameters */

	result = r.status;
		
		if (NT_STATUS_IS_OK(result)) {
			switch (level) {
			case 0:
				decode_printer_info_0(mem_ctx, r.buffer, 1, &ctr->printers_0);
				break;
			case 1:
				decode_printer_info_1(mem_ctx, r.buffer, 1, &ctr->printers_1);
				break;
			case 2:
				decode_printer_info_2(mem_ctx, r.buffer, 1, &ctr->printers_2);
				break;
			case 3:
				decode_printer_info_3(mem_ctx, r.buffer, 1, &ctr->printers_3);
				break;
			}			
		}

	done:
		prs_mem_free(&qbuf);
		prs_mem_free(&rbuf);

	return result;	
}

/*********************************************************************************
 Win32 API - SetPrinter()
 ********************************************************************************/
/** Set printer info 
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param pol              Policy handle on printer to set info.
 * @param level            Information level to set.
 * @param ctr              Pointer to structure holding printer information.
 * @param command          Specifies the action performed.  See
 * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/prntspol_13ua.asp 
 * for details.
 *
 */
 
WERROR cli_spoolss_setprinter(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			      POLICY_HND *pol, uint32 level, 
			      PRINTER_INFO_CTR *ctr, uint32 command)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_SETPRINTER q;
	SPOOL_R_SETPRINTER r;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise input parameters */
	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
		
	make_spoolss_q_setprinter(mem_ctx, &q, pol, level, ctr, command);

	/* Marshall data and send request */

	if (!spoolss_io_q_setprinter("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_SETPRINTER, &qbuf, &rbuf)) 
		goto done;

	/* Unmarshall response */

	if (!spoolss_io_r_setprinter("", &r, &rbuf, 0)) 
		goto done;
	
	result = r.status;
		
done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);


	return result;	
}

/*********************************************************************************
 Win32 API - GetPrinterDriver()
 ********************************************************************************/
/** Get installed printer drivers for a given printer
 *
 * @param cli              Pointer to client state structure which is open
 * on the SPOOLSS pipe.
 *
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param offered          Buffer size offered in the request.
 * @param needed           Number of bytes needed to complete the request.
 *                         may be NULL.
 *
 * @param pol              Pointer to an open policy handle for the printer
 *                         opened with cli_spoolss_open_printer_ex().
 * @param level            Requested information level.
 * @param env              The print environment or archictecture.  This is
 *                         "Windows NT x86" for NT4.
 * @param ctr              Returned printer driver information.
 */

WERROR cli_spoolss_getprinterdriver(struct cli_state *cli, 
				    TALLOC_CTX *mem_ctx, 
				    uint32 offered, uint32 *needed,
				    POLICY_HND *pol, uint32 level, 
				    char *env, PRINTER_DRIVER_CTR *ctr)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_GETPRINTERDRIVER2 q;
        SPOOL_R_GETPRINTERDRIVER2 r;
	NEW_BUFFER buffer;
	WERROR result = W_ERROR(ERRgeneral);
	fstring server;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	fstrcpy (server, cli->desthost);
	strupper (server);

		/* Initialise input parameters */

	init_buffer(&buffer, offered, mem_ctx);

		prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
		prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	make_spoolss_q_getprinterdriver2(&q, pol, env, level, 2, 2,
					 &buffer, offered);

	/* Marshall data and send request */

		if (!spoolss_io_q_getprinterdriver2 ("", &q, &qbuf, 0) ||
		    !rpc_api_pipe_req (cli, SPOOLSS_GETPRINTERDRIVER2, &qbuf, &rbuf)) 
			goto done;

		/* Unmarshall response */

	if (spoolss_io_r_getprinterdriver2 ("", &r, &rbuf, 0)) {
		if (needed)
			*needed = r.needed;
		}
		
	result = r.status;

		/* Return output parameters */
		
	if (!W_ERROR_IS_OK(result))
		goto done;

	if (!ctr)
		goto done;

	switch (level) {
			case 1:
				decode_printer_driver_1(mem_ctx, r.buffer, 1, &ctr->info1);
				break;
			case 2:
				decode_printer_driver_2(mem_ctx, r.buffer, 1, &ctr->info2);
				break;
			case 3:
				decode_printer_driver_3(mem_ctx, r.buffer, 1, &ctr->info3);
				break;
			}			

	done:
		prs_mem_free(&qbuf);
		prs_mem_free(&rbuf);

	return result;	
}

/*********************************************************************************
 Win32 API - EnumPrinterDrivers()
 ********************************************************************************/
/**********************************************************************
 * Get installed printer drivers for a given printer
 */
WERROR cli_spoolss_enumprinterdrivers (struct cli_state *cli, 
				       TALLOC_CTX *mem_ctx,
				       uint32 offered, uint32 *needed,
				       uint32 level, char *env,
				       uint32 *num_drivers,
				PRINTER_DRIVER_CTR *ctr)
{
	prs_struct 			qbuf, rbuf;
	SPOOL_Q_ENUMPRINTERDRIVERS 	q;
        SPOOL_R_ENUMPRINTERDRIVERS 	r;
	NEW_BUFFER 			buffer;
	WERROR result = W_ERROR(ERRgeneral);
	fstring 			server;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

        slprintf (server, sizeof(fstring)-1, "\\\\%s", cli->desthost);
        strupper (server);

		/* Initialise input parameters */

	init_buffer(&buffer, offered, mem_ctx);

		prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
		prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Write the request */

	make_spoolss_q_enumprinterdrivers(&q, server, env, level, &buffer, 
					  offered);

		/* Marshall data and send request */
	
		if (!spoolss_io_q_enumprinterdrivers ("", &q, &qbuf, 0) ||
		    !rpc_api_pipe_req (cli, SPOOLSS_ENUMPRINTERDRIVERS, &qbuf, &rbuf)) 
			goto done;

		/* Unmarshall response */

	if (!spoolss_io_r_enumprinterdrivers ("", &r, &rbuf, 0))
		goto done;

	if (needed)
		*needed = r.needed;

	if (num_drivers)
		*num_drivers = r.returned;

	result = r.status;
		
		/* Return output parameters */

	if (W_ERROR_IS_OK(result) && (r.returned != 0)) {
		*num_drivers = r.returned;

		switch (level) {
			case 1:
				decode_printer_driver_1(mem_ctx, r.buffer, r.returned, &ctr->info1);
				break;
			case 2:
				decode_printer_driver_2(mem_ctx, r.buffer, r.returned, &ctr->info2);
				break;
			case 3:
				decode_printer_driver_3(mem_ctx, r.buffer, r.returned, &ctr->info3);
				break;
			}			
		}

	done:
		prs_mem_free(&qbuf);
		prs_mem_free(&rbuf);

	return result;	
}


/*********************************************************************************
 Win32 API - GetPrinterDriverDirectory()
 ********************************************************************************/
/**********************************************************************
 * Get installed printer drivers for a given printer
 */
WERROR cli_spoolss_getprinterdriverdir (struct cli_state *cli, 
					TALLOC_CTX *mem_ctx,
					uint32 offered, uint32 *needed,
					uint32 level, char *env,
					DRIVER_DIRECTORY_CTR *ctr)
{
	prs_struct 			qbuf, rbuf;
	SPOOL_Q_GETPRINTERDRIVERDIR 	q;
        SPOOL_R_GETPRINTERDRIVERDIR 	r;
	NEW_BUFFER 			buffer;
	WERROR result = W_ERROR(ERRgeneral);
	fstring 			server;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

        slprintf (server, sizeof(fstring)-1, "\\\\%s", cli->desthost);
        strupper (server);

		/* Initialise input parameters */

	init_buffer(&buffer, offered, mem_ctx);

		prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
		prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Write the request */

	make_spoolss_q_getprinterdriverdir(&q, server, env, level, &buffer, 
					   offered);

		/* Marshall data and send request */

		if (!spoolss_io_q_getprinterdriverdir ("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req (cli, SPOOLSS_GETPRINTERDRIVERDIRECTORY,
			       &qbuf, &rbuf)) 
			goto done;

		/* Unmarshall response */

	if (spoolss_io_r_getprinterdriverdir ("", &r, &rbuf, 0)) {
		if (needed)
			*needed = r.needed;
		}
		
		/* Return output parameters */

	result = r.status;

	if (W_ERROR_IS_OK(result)) {
		switch (level) {
			case 1:
			decode_printerdriverdir_1(mem_ctx, r.buffer, 1, 
						  &ctr->info1);
				break;
			}			
		}

	done:
		prs_mem_free(&qbuf);
		prs_mem_free(&rbuf);

	return result;	
}

/*********************************************************************************
 Win32 API - AddPrinterDriver()
 ********************************************************************************/
/**********************************************************************
 * Install a printer driver
 */
WERROR cli_spoolss_addprinterdriver (struct cli_state *cli, 
				     TALLOC_CTX *mem_ctx, uint32 level,
				     PRINTER_DRIVER_CTR *ctr)
{
	prs_struct 			qbuf, rbuf;
	SPOOL_Q_ADDPRINTERDRIVER 	q;
        SPOOL_R_ADDPRINTERDRIVER 	r;
	WERROR result = W_ERROR(ERRgeneral);
	fstring 			server;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);
	
        slprintf (server, sizeof(fstring)-1, "\\\\%s", cli->desthost);
        strupper (server);

	/* Initialise input parameters */
	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Write the request */

	make_spoolss_q_addprinterdriver (mem_ctx, &q, server, level, ctr);

	/* Marshall data and send request */

	if (!spoolss_io_q_addprinterdriver ("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req (cli, SPOOLSS_ADDPRINTERDRIVER, &qbuf, &rbuf)) 
		goto done;

	/* Unmarshall response */
		
	if (!spoolss_io_r_addprinterdriver ("", &r, &rbuf, 0))
		goto done;
		
	/* Return output parameters */

	result = r.status;

done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);
	
	return result;	
}

/*********************************************************************************
 Win32 API - AddPrinter()
 ********************************************************************************/
/**********************************************************************
 * Install a printer
 */
WERROR cli_spoolss_addprinterex (struct cli_state *cli, TALLOC_CTX *mem_ctx,
				 uint32 level, PRINTER_INFO_CTR*ctr)
{
	prs_struct 			qbuf, rbuf;
	SPOOL_Q_ADDPRINTEREX 		q;
        SPOOL_R_ADDPRINTEREX 		r;
	WERROR result = W_ERROR(ERRgeneral);
	fstring 			server,
					client,
					user;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

        slprintf (client, sizeof(fstring)-1, "\\\\%s", cli->desthost);
        strupper (client);
        slprintf (server, sizeof(fstring)-1, "\\\\%s", cli->desthost);
        strupper (server);
	fstrcpy  (user, cli->user_name);
	
	/* Initialise input parameters */

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Write the request */

	make_spoolss_q_addprinterex (mem_ctx, &q, server, client, user,
				     level, ctr);

	/* Marshall data and send request */

	if (!spoolss_io_q_addprinterex ("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req (cli, SPOOLSS_ADDPRINTEREX, &qbuf, &rbuf)) 
		goto done;

	/* Unmarshall response */
		
	if (!spoolss_io_r_addprinterex ("", &r, &rbuf, 0))
		goto done;
		
	/* Return output parameters */

	result = r.status;

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;	
}

/*********************************************************************************
 Win32 API - DeltePrinterDriver()
 ********************************************************************************/
/**********************************************************************
 * Delete a Printer Driver from the server (does not remove 
 * the driver files
 */
WERROR cli_spoolss_deleteprinterdriver (struct cli_state *cli, 
					TALLOC_CTX *mem_ctx, char *arch,
					char *driver)
{
	prs_struct 			qbuf, rbuf;
	SPOOL_Q_DELETEPRINTERDRIVER	q;
        SPOOL_R_DELETEPRINTERDRIVER	r;
	WERROR result = W_ERROR(ERRgeneral);
	fstring				server;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);


	/* Initialise input parameters */
	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

        slprintf (server, sizeof(fstring)-1, "\\\\%s", cli->desthost);
        strupper (server);

	/* Write the request */

	make_spoolss_q_deleteprinterdriver(mem_ctx, &q, server, arch, driver);

	/* Marshall data and send request */

	if (!spoolss_io_q_deleteprinterdriver ("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req (cli,SPOOLSS_DELETEPRINTERDRIVER , &qbuf, &rbuf)) 
		goto done;

	/* Unmarshall response */
		
	if (!spoolss_io_r_deleteprinterdriver ("", &r, &rbuf, 0))
		goto done;
		
	/* Return output parameters */

	result = r.status;

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;	
}

/*********************************************************************************
 Win32 API - GetPrinterProcessorDirectory()
 ********************************************************************************/

WERROR cli_spoolss_getprintprocessordirectory(struct cli_state *cli,
					      TALLOC_CTX *mem_ctx,
					      uint32 offered, uint32 *needed,
					      char *name, char *environment,
					      fstring procdir)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_GETPRINTPROCESSORDIRECTORY q;
	SPOOL_R_GETPRINTPROCESSORDIRECTORY r;
	int level = 1;
	WERROR result = W_ERROR(ERRgeneral);
	NEW_BUFFER buffer;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Initialise input parameters */

	init_buffer(&buffer, offered, mem_ctx);

	make_spoolss_q_getprintprocessordirectory(
		&q, name, environment, level, &buffer, offered);

	/* Marshall data and send request */

	if (!spoolss_io_q_getprintprocessordirectory("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_GETPRINTPROCESSORDIRECTORY,
			      &qbuf, &rbuf))
		goto done;
		
	/* Unmarshall response */
		
	if (!spoolss_io_r_getprintprocessordirectory("", &r, &rbuf, 0))
		goto done;

	/* Return output parameters */
		
	result = r.status;

	if (needed)
		*needed = r.needed;

	if (W_ERROR_IS_OK(result))
		fstrcpy(procdir, "Not implemented!");

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}

/** Add a form to a printer.
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param handle           Policy handle opened with cli_spoolss_open_printer_ex
 *                         or cli_spoolss_addprinterex.
 * @param level            Form info level to add - should always be 1.
 * @param form             A pointer to the form to be added.
 *
 */

WERROR cli_spoolss_addform(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			   POLICY_HND *handle, uint32 level, FORM *form)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_ADDFORM q;
	SPOOL_R_ADDFORM r;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

		prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
		prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);
		
	/* Initialise input parameters */

        make_spoolss_q_addform(&q, handle, level, form);

		/* Marshall data and send request */

	if (!spoolss_io_q_addform("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_ADDFORM, &qbuf, &rbuf))
		goto done;

	/* Unmarshall response */

	if (!spoolss_io_r_addform("", &r, &rbuf, 0))
			goto done;

	/* Return output parameters */

	result = r.status;

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}
		
/** Set a form on a printer.
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param handle           Policy handle opened with cli_spoolss_open_printer_ex 
 *                         or cli_spoolss_addprinterex.
 * @param level            Form info level to set - should always be 1.
 * @param form             A pointer to the form to be set.
 *
 */

WERROR cli_spoolss_setform(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			   POLICY_HND *handle, uint32 level, char *form_name,
			   FORM *form)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_SETFORM q;
	SPOOL_R_SETFORM r;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Initialise input parameters */

        make_spoolss_q_setform(&q, handle, level, form_name, form);
	
	/* Marshall data and send request */

	if (!spoolss_io_q_setform("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_SETFORM, &qbuf, &rbuf))
		goto done;

		/* Unmarshall response */
		
	if (!spoolss_io_r_setform("", &r, &rbuf, 0))
			goto done;

	/* Return output parameters */

	result = r.status;

	if (!W_ERROR_IS_OK(result))
		goto done;



 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}

/** Get a form on a printer.
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param handle           Policy handle opened with cli_spoolss_open_printer_ex 
 *                         or cli_spoolss_addprinterex.
 * @param formname         Name of the form to get
 * @param level            Form info level to get - should always be 1.
 *
 */

WERROR cli_spoolss_getform(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			   uint32 offered, uint32 *needed,
			   POLICY_HND *handle, char *formname, uint32 level, 
			   FORM_1 *form)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_GETFORM q;
	SPOOL_R_GETFORM r;
	WERROR result = W_ERROR(ERRgeneral);
	NEW_BUFFER buffer;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

	init_buffer(&buffer, offered, mem_ctx);

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Initialise input parameters */

        make_spoolss_q_getform(&q, handle, formname, level, &buffer, offered);
	
	/* Marshall data and send request */

	if (!spoolss_io_q_getform("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_GETFORM, &qbuf, &rbuf))
		goto done;

	/* Unmarshall response */

	if (!spoolss_io_r_getform("", &r, &rbuf, 0))
		goto done;

		/* Return output parameters */
		
	result = r.status;

	if (needed)
		*needed = r.needed;

	if (W_ERROR_IS_OK(result)) 
		smb_io_form_1("", r.buffer, form, 0);

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}

/** Delete a form on a printer.
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param handle           Policy handle opened with cli_spoolss_open_printer_ex 
 *                         or cli_spoolss_addprinterex.
 * @param form             The name of the form to delete.
 *
 */

WERROR cli_spoolss_deleteform(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			      POLICY_HND *handle, char *form_name)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_DELETEFORM q;
	SPOOL_R_DELETEFORM r;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Initialise input parameters */

        make_spoolss_q_deleteform(&q, handle, form_name);
	
	/* Marshall data and send request */

	if (!spoolss_io_q_deleteform("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_DELETEFORM, &qbuf, &rbuf))
		goto done;

	/* Unmarshall response */

	if (!spoolss_io_r_deleteform("", &r, &rbuf, 0))
		goto done;

	/* Return output parameters */

	result = r.status;

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}

static void decode_forms_1(TALLOC_CTX *mem_ctx, NEW_BUFFER *buffer, 
			   uint32 num_forms, FORM_1 **forms)
{
	int i;

	*forms = (FORM_1 *)talloc(mem_ctx, num_forms * sizeof(FORM_1));
	buffer->prs.data_offset = 0;

	for (i = 0; i < num_forms; i++)
		smb_io_form_1("", buffer, &((*forms)[i]), 0);
}

/** Enumerate forms
 *
 * @param cli              Pointer to client state structure which is open
 *                         on the SPOOLSS pipe.
 * @param mem_ctx          Pointer to an initialised talloc context.
 *
 * @param offered          Buffer size offered in the request.
 * @param needed           Number of bytes needed to complete the request.
 *                         may be NULL.
 *                         or cli_spoolss_addprinterex.
 * @param level            Form info level to get - should always be 1.
 * @param handle           Open policy handle
 *
 */

WERROR cli_spoolss_enumforms(struct cli_state *cli, TALLOC_CTX *mem_ctx,
			     uint32 offered, uint32 *needed,
			     POLICY_HND *handle, int level, uint32 *num_forms,
			     FORM_1 **forms)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_ENUMFORMS q;
	SPOOL_R_ENUMFORMS r;
	WERROR result = W_ERROR(ERRgeneral);
	NEW_BUFFER buffer;

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise parse structures */

	init_buffer(&buffer, offered, mem_ctx);

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);

	/* Initialise input parameters */

        make_spoolss_q_enumforms(&q, handle, level, &buffer, offered);

	/* Marshall data and send request */

	if (!spoolss_io_q_enumforms("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req(cli, SPOOLSS_ENUMFORMS, &qbuf, &rbuf))
		goto done;

	/* Unmarshall response */

	if (!spoolss_io_r_enumforms("", &r, &rbuf, 0))
		goto done;

	/* Return output parameters */

	result = r.status;

	if (needed)
		*needed = r.needed;

	if (num_forms)
		*num_forms = r.numofforms;

	decode_forms_1(mem_ctx, r.buffer, *num_forms, forms);

 done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;
}

/*********************************************************************************
 Win32 API - SetPrinterData()
 ********************************************************************************/

WERROR cli_spoolss_setprinterdata (struct cli_state *cli, TALLOC_CTX *mem_ctx,
					POLICY_HND *pol, char* valname, char* value)
{
	prs_struct qbuf, rbuf;
	SPOOL_Q_SETPRINTERDATA q;
        SPOOL_R_SETPRINTERDATA r;
	WERROR result = W_ERROR(ERRgeneral);

	ZERO_STRUCT(q);
	ZERO_STRUCT(r);

	/* Initialise input parameters */

	prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
	prs_init(&rbuf, 0, mem_ctx, UNMARSHALL);


	/* write the request */
	make_spoolss_q_setprinterdata(&q, mem_ctx, pol, valname, value);

	/* Marshall data and send request */
	if (!spoolss_io_q_setprinterdata ("", &q, &qbuf, 0) ||
	    !rpc_api_pipe_req (cli, SPOOLSS_SETPRINTERDATA, &qbuf, &rbuf)) 
		goto done;

	/* Unmarshall response */
	if (spoolss_io_r_setprinterdata ("", &r, &rbuf, 0))
		goto done;
		
	result = r.status;
		
done:
	prs_mem_free(&qbuf);
	prs_mem_free(&rbuf);

	return result;	
}


/** @} **/
