src/sbservices.c - third_party/libimobiledevice - Git at Google

 /*
  * sbservices.c
  * com.apple.springboardservices service implementation.
  *
  * Copyright (c) 2009 Nikias Bassen, All Rights Reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */

 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <plist/plist.h>

 #include "sbservices.h"
 #include "property_list_service.h"
 #include "debug.h"

 /**
  * Locks an sbservices client, used for thread safety.
  *
  * @param client sbservices client to lock.
  */
 static void sbs_lock(sbservices_client_t client)
 {
 	debug_info("SBServices: Locked");
 #ifdef WIN32
 	EnterCriticalSection(&client->mutex);
 #else
 	pthread_mutex_lock(&client->mutex);
 #endif
 }

 /**
  * Unlocks an sbservices client, used for thread safety.
  *
  * @param client sbservices client to unlock
  */
 static void sbs_unlock(sbservices_client_t client)
 {
 	debug_info("SBServices: Unlocked");
 #ifdef WIN32
 	LeaveCriticalSection(&client->mutex);
 #else
 	pthread_mutex_unlock(&client->mutex);
 #endif
 }

 /**
  * Convert a property_list_service_error_t value to a sbservices_error_t value.
  * Used internally to get correct error codes.
  *
  * @param err A property_list_service_error_t error code
  *
  * @return A matching sbservices_error_t error code,
  *     SBSERVICES_E_UNKNOWN_ERROR otherwise.
  */
 static sbservices_error_t sbservices_error(property_list_service_error_t err)
 {
        switch (err) {
                 case PROPERTY_LIST_SERVICE_E_SUCCESS:
                         return SBSERVICES_E_SUCCESS;
                 case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
                         return SBSERVICES_E_INVALID_ARG;
                 case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
                         return SBSERVICES_E_PLIST_ERROR;
                 case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
                         return SBSERVICES_E_CONN_FAILED;
                 default:
                         break;
         }
         return SBSERVICES_E_UNKNOWN_ERROR;
 }

 /**
  * Connects to the springboardservices service on the specified device.
  *
  * @param device The device to connect to.
  * @param service The service descriptor returned by lockdownd_start_service.
  * @param client Pointer that will point to a newly allocated
  *     sbservices_client_t upon successful return.
  *
  * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
  *     client is NULL, or an SBSERVICES_E_* error code otherwise.
  */
 sbservices_error_t sbservices_client_new(idevice_t device, lockdownd_service_descriptor_t service, sbservices_client_t *client)
 {
 	if (!device)
 		return SBSERVICES_E_INVALID_ARG;

 	property_list_service_client_t plistclient = NULL;
 	sbservices_error_t err = sbservices_error(property_list_service_client_new(device, service, &plistclient));
 	if (err != SBSERVICES_E_SUCCESS) {
 		return err;
 	}

 	sbservices_client_t client_loc = (sbservices_client_t) malloc(sizeof(struct sbservices_client_private));
 	client_loc->parent = plistclient;
 #ifdef WIN32
 	InitializeCriticalSection(&client_loc->mutex);
 #else
 	pthread_mutex_init(&client_loc->mutex, NULL);
 #endif

 	*client = client_loc;
 	return SBSERVICES_E_SUCCESS;
 }

 /**
  * Disconnects an sbservices client from the device and frees up the
  * sbservices client data.
  *
  * @param client The sbservices client to disconnect and free.
  *
  * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
  *     client is NULL, or an SBSERVICES_E_* error code otherwise.
  */
 sbservices_error_t sbservices_client_free(sbservices_client_t client)
 {
 	if (!client)
 		return SBSERVICES_E_INVALID_ARG;

 	sbservices_error_t err = sbservices_error(property_list_service_client_free(client->parent));
 	client->parent = NULL;
 #ifdef WIN32
 	DeleteCriticalSection(&client->mutex);
 #else
 	pthread_mutex_destroy(&client->mutex);
 #endif
 	free(client);

 	return err;
 }

 /**
  * Gets the icon state of the connected device.
  *
  * @param client The connected sbservices client to use.
  * @param state Pointer that will point to a newly allocated plist containing
  *     the current icon state. It is up to the caller to free the memory.
  * @param format_version A string to be passed as formatVersion along with
  *     the request, or NULL if no formatVersion should be passed. This is only
  *     supported since iOS 4.0 so for older firmware versions this must be set
  *     to NULL.
  *
  * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
  *     client or state is invalid, or an SBSERVICES_E_* error code otherwise.
  */
 sbservices_error_t sbservices_get_icon_state(sbservices_client_t client, plist_t *state, const char *format_version)
 {
 	if (!client || !client->parent || !state)
 		return SBSERVICES_E_INVALID_ARG;

 	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_insert_item(dict, "command", plist_new_string("getIconState"));
 	if (format_version) {
 		plist_dict_insert_item(dict, "formatVersion", plist_new_string(format_version));
 	}

 	sbs_lock(client);

 	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
 	if (res != SBSERVICES_E_SUCCESS) {
 		debug_info("could not send plist, error %d", res);
 		goto leave_unlock;
 	}
 	plist_free(dict);
 	dict = NULL;

 	res = sbservices_error(property_list_service_receive_plist(client->parent, state));
 	if (res != SBSERVICES_E_SUCCESS) {
 		debug_info("could not get icon state, error %d", res);
 		if (*state) {
 			plist_free(*state);
 			*state = NULL;
 		}
 	}

 leave_unlock:
 	if (dict) {
 		plist_free(dict);
 	}
 	sbs_unlock(client);
 	return res;
 }

 /**
  * Sets the icon state of the connected device.
  *
  * @param client The connected sbservices client to use.
  * @param newstate A plist containing the new iconstate.
  *
  * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
  *     client or newstate is NULL, or an SBSERVICES_E_* error code otherwise.
  */
 sbservices_error_t sbservices_set_icon_state(sbservices_client_t client, plist_t newstate)
 {
 	if (!client || !client->parent || !newstate)
 		return SBSERVICES_E_INVALID_ARG;

 	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_insert_item(dict, "command", plist_new_string("setIconState"));
 	plist_dict_insert_item(dict, "iconState", plist_copy(newstate));

 	sbs_lock(client);

 	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
 	if (res != SBSERVICES_E_SUCCESS) {
 		debug_info("could not send plist, error %d", res);
 	}
 	/* NO RESPONSE */

 	if (dict) {
 		plist_free(dict);
 	}
 	sbs_unlock(client);
 	return res;
 }

 /**
  * Get the icon of the specified app as PNG data.
  *
  * @param client The connected sbservices client to use.
  * @param bundleId The bundle identifier of the app to retrieve the icon for.
  * @param pngdata Pointer that will point to a newly allocated buffer
  *     containing the PNG data upon successful return. It is up to the caller
  *     to free the memory.
  * @param pngsize Pointer to a uint64_t that will be set to the size of the
  *     buffer pngdata points to upon successful return.
  *
  * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
  *     client, bundleId, or pngdata are invalid, or an SBSERVICES_E_* error
  *     code otherwise.
  */
 sbservices_error_t sbservices_get_icon_pngdata(sbservices_client_t client, const char *bundleId, char **pngdata, uint64_t *pngsize)
 {
 	if (!client || !client->parent || !bundleId || !pngdata)
 		return SBSERVICES_E_INVALID_ARG;

 	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_insert_item(dict, "command", plist_new_string("getIconPNGData"));
 	plist_dict_insert_item(dict, "bundleId", plist_new_string(bundleId));

 	sbs_lock(client);

 	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
 	if (res != SBSERVICES_E_SUCCESS) {
 		debug_info("could not send plist, error %d", res);
 		goto leave_unlock;
 	}
 	plist_free(dict);

 	dict = NULL;
 	res = sbservices_error(property_list_service_receive_plist(client->parent, &dict));
 	if (res	== SBSERVICES_E_SUCCESS) {
 		plist_t node = plist_dict_get_item(dict, "pngData");
 		if (node) {
 			plist_get_data_val(node, pngdata, pngsize);
 		}
 	}

 leave_unlock:
 	if (dict) {
 		plist_free(dict);
 	}
 	sbs_unlock(client);
 	return res;
 }

 /**
  * Gets the interface orientation of the device.
  *
  * @param client The connected sbservices client to use.
  * @param interface_orientation The interface orientation upon successful return.
  *
  * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
  *     client or state is invalid, or an SBSERVICES_E_* error code otherwise.
  */
 sbservices_error_t sbservices_get_interface_orientation(sbservices_client_t client, sbservices_interface_orientation_t* interface_orientation)
 {
 	if (!client || !client->parent || !interface_orientation)
 		return SBSERVICES_E_INVALID_ARG;

 	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_insert_item(dict, "command", plist_new_string("getInterfaceOrientation"));

 	sbs_lock(client);

 	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
 	if (res != SBSERVICES_E_SUCCESS) {
 		debug_info("could not send plist, error %d", res);
 		goto leave_unlock;
 	}
 	plist_free(dict);
 	dict = NULL;

 	res = sbservices_error(property_list_service_receive_plist(client->parent, &dict));
 	if (res	== SBSERVICES_E_SUCCESS) {
 		plist_t node = plist_dict_get_item(dict, "interfaceOrientation");
 		if (node) {
 			uint64_t value = SBSERVICES_INTERFACE_ORIENTATION_UNKNOWN;
 			plist_get_uint_val(node, &value);
 			*interface_orientation = (sbservices_interface_orientation_t)value;
 		}
 	}

 leave_unlock:
 	if (dict) {
 		plist_free(dict);
 	}
 	sbs_unlock(client);
 	return res;
 }

 /**
  * Get the home screen wallpaper as PNG data.
  *
  * @param client The connected sbservices client to use.
  * @param pngdata Pointer that will point to a newly allocated buffer
  *     containing the PNG data upon successful return. It is up to the caller
  *     to free the memory.
  * @param pngsize Pointer to a uint64_t that will be set to the size of the
  *     buffer pngdata points to upon successful return.
  *
  * @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
  *     client or pngdata are invalid, or an SBSERVICES_E_* error
  *     code otherwise.
  */
 sbservices_error_t sbservices_get_home_screen_wallpaper_pngdata(sbservices_client_t client, char **pngdata, uint64_t *pngsize)
 {
 	if (!client || !client->parent || !pngdata)
 		return SBSERVICES_E_INVALID_ARG;

 	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_insert_item(dict, "command", plist_new_string("getHomeScreenWallpaperPNGData"));

 	sbs_lock(client);

 	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
 	if (res != SBSERVICES_E_SUCCESS) {
 		debug_info("could not send plist, error %d", res);
 		goto leave_unlock;
 	}
 	plist_free(dict);

 	dict = NULL;
 	res = sbservices_error(property_list_service_receive_plist(client->parent, &dict));
 	if (res	== SBSERVICES_E_SUCCESS) {
 		plist_t node = plist_dict_get_item(dict, "pngData");
 		if (node) {
 			plist_get_data_val(node, pngdata, pngsize);
 		}
 	}

 leave_unlock:
 	if (dict) {
 		plist_free(dict);
 	}
 	sbs_unlock(client);
 	return res;
 }
	/*
	* sbservices.c
	* com.apple.springboardservices service implementation.
	*
	* Copyright (c) 2009 Nikias Bassen, All Rights Reserved.
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* This library 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
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	#include <string.h>
	#include <stdlib.h>
	#include <unistd.h>
	#include <plist/plist.h>

	#include "sbservices.h"
	#include "property_list_service.h"
	#include "debug.h"

	/**
	* Locks an sbservices client, used for thread safety.
	*
	* @param client sbservices client to lock.
	*/
	static void sbs_lock(sbservices_client_t client)
	{
	debug_info("SBServices: Locked");
	#ifdef WIN32
	EnterCriticalSection(&client->mutex);
	#else
	pthread_mutex_lock(&client->mutex);
	#endif
	}

	/**
	* Unlocks an sbservices client, used for thread safety.
	*
	* @param client sbservices client to unlock
	*/
	static void sbs_unlock(sbservices_client_t client)
	{
	debug_info("SBServices: Unlocked");
	#ifdef WIN32
	LeaveCriticalSection(&client->mutex);
	#else
	pthread_mutex_unlock(&client->mutex);
	#endif
	}

	/**
	* Convert a property_list_service_error_t value to a sbservices_error_t value.
	* Used internally to get correct error codes.
	*
	* @param err A property_list_service_error_t error code
	*
	* @return A matching sbservices_error_t error code,
	* SBSERVICES_E_UNKNOWN_ERROR otherwise.
	*/
	static sbservices_error_t sbservices_error(property_list_service_error_t err)
	{
	switch (err) {
	case PROPERTY_LIST_SERVICE_E_SUCCESS:
	return SBSERVICES_E_SUCCESS;
	case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
	return SBSERVICES_E_INVALID_ARG;
	case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
	return SBSERVICES_E_PLIST_ERROR;
	case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
	return SBSERVICES_E_CONN_FAILED;
	default:
	break;
	}
	return SBSERVICES_E_UNKNOWN_ERROR;
	}

	/**
	* Connects to the springboardservices service on the specified device.
	*
	* @param device The device to connect to.
	* @param service The service descriptor returned by lockdownd_start_service.
	* @param client Pointer that will point to a newly allocated
	* sbservices_client_t upon successful return.
	*
	* @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
	* client is NULL, or an SBSERVICES_E_* error code otherwise.
	*/
	sbservices_error_t sbservices_client_new(idevice_t device, lockdownd_service_descriptor_t service, sbservices_client_t *client)
	{
	if (!device)
	return SBSERVICES_E_INVALID_ARG;

	property_list_service_client_t plistclient = NULL;
	sbservices_error_t err = sbservices_error(property_list_service_client_new(device, service, &plistclient));
	if (err != SBSERVICES_E_SUCCESS) {
	return err;
	}

	sbservices_client_t client_loc = (sbservices_client_t) malloc(sizeof(struct sbservices_client_private));
	client_loc->parent = plistclient;
	#ifdef WIN32
	InitializeCriticalSection(&client_loc->mutex);
	#else
	pthread_mutex_init(&client_loc->mutex, NULL);
	#endif

	*client = client_loc;
	return SBSERVICES_E_SUCCESS;
	}

	/**
	* Disconnects an sbservices client from the device and frees up the
	* sbservices client data.
	*
	* @param client The sbservices client to disconnect and free.
	*
	* @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
	* client is NULL, or an SBSERVICES_E_* error code otherwise.
	*/
	sbservices_error_t sbservices_client_free(sbservices_client_t client)
	{
	if (!client)
	return SBSERVICES_E_INVALID_ARG;

	sbservices_error_t err = sbservices_error(property_list_service_client_free(client->parent));
	client->parent = NULL;
	#ifdef WIN32
	DeleteCriticalSection(&client->mutex);
	#else
	pthread_mutex_destroy(&client->mutex);
	#endif
	free(client);

	return err;
	}

	/**
	* Gets the icon state of the connected device.
	*
	* @param client The connected sbservices client to use.
	* @param state Pointer that will point to a newly allocated plist containing
	* the current icon state. It is up to the caller to free the memory.
	* @param format_version A string to be passed as formatVersion along with
	* the request, or NULL if no formatVersion should be passed. This is only
	* supported since iOS 4.0 so for older firmware versions this must be set
	* to NULL.
	*
	* @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
	* client or state is invalid, or an SBSERVICES_E_* error code otherwise.
	*/
	sbservices_error_t sbservices_get_icon_state(sbservices_client_t client, plist_t state, const char format_version)
	{
	if (!client \|\| !client->parent \|\| !state)
	return SBSERVICES_E_INVALID_ARG;

	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_insert_item(dict, "command", plist_new_string("getIconState"));
	if (format_version) {
	plist_dict_insert_item(dict, "formatVersion", plist_new_string(format_version));
	}

	sbs_lock(client);

	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
	if (res != SBSERVICES_E_SUCCESS) {
	debug_info("could not send plist, error %d", res);
	goto leave_unlock;
	}
	plist_free(dict);
	dict = NULL;

	res = sbservices_error(property_list_service_receive_plist(client->parent, state));
	if (res != SBSERVICES_E_SUCCESS) {
	debug_info("could not get icon state, error %d", res);
	if (*state) {
	plist_free(*state);
	*state = NULL;
	}
	}

	leave_unlock:
	if (dict) {
	plist_free(dict);
	}
	sbs_unlock(client);
	return res;
	}

	/**
	* Sets the icon state of the connected device.
	*
	* @param client The connected sbservices client to use.
	* @param newstate A plist containing the new iconstate.
	*
	* @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
	* client or newstate is NULL, or an SBSERVICES_E_* error code otherwise.
	*/
	sbservices_error_t sbservices_set_icon_state(sbservices_client_t client, plist_t newstate)
	{
	if (!client \|\| !client->parent \|\| !newstate)
	return SBSERVICES_E_INVALID_ARG;

	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_insert_item(dict, "command", plist_new_string("setIconState"));
	plist_dict_insert_item(dict, "iconState", plist_copy(newstate));

	sbs_lock(client);

	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
	if (res != SBSERVICES_E_SUCCESS) {
	debug_info("could not send plist, error %d", res);
	}
	/* NO RESPONSE */

	if (dict) {
	plist_free(dict);
	}
	sbs_unlock(client);
	return res;
	}

	/**
	* Get the icon of the specified app as PNG data.
	*
	* @param client The connected sbservices client to use.
	* @param bundleId The bundle identifier of the app to retrieve the icon for.
	* @param pngdata Pointer that will point to a newly allocated buffer
	* containing the PNG data upon successful return. It is up to the caller
	* to free the memory.
	* @param pngsize Pointer to a uint64_t that will be set to the size of the
	* buffer pngdata points to upon successful return.
	*
	* @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
	* client, bundleId, or pngdata are invalid, or an SBSERVICES_E_* error
	* code otherwise.
	*/
	sbservices_error_t sbservices_get_icon_pngdata(sbservices_client_t client, const char bundleId, char pngdata, uint64_t pngsize)
	{
	if (!client \|\| !client->parent \|\| !bundleId \|\| !pngdata)
	return SBSERVICES_E_INVALID_ARG;

	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_insert_item(dict, "command", plist_new_string("getIconPNGData"));
	plist_dict_insert_item(dict, "bundleId", plist_new_string(bundleId));

	sbs_lock(client);

	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
	if (res != SBSERVICES_E_SUCCESS) {
	debug_info("could not send plist, error %d", res);
	goto leave_unlock;
	}
	plist_free(dict);

	dict = NULL;
	res = sbservices_error(property_list_service_receive_plist(client->parent, &dict));
	if (res == SBSERVICES_E_SUCCESS) {
	plist_t node = plist_dict_get_item(dict, "pngData");
	if (node) {
	plist_get_data_val(node, pngdata, pngsize);
	}
	}

	leave_unlock:
	if (dict) {
	plist_free(dict);
	}
	sbs_unlock(client);
	return res;
	}

	/**
	* Gets the interface orientation of the device.
	*
	* @param client The connected sbservices client to use.
	* @param interface_orientation The interface orientation upon successful return.
	*
	* @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
	* client or state is invalid, or an SBSERVICES_E_* error code otherwise.
	*/
	sbservices_error_t sbservices_get_interface_orientation(sbservices_client_t client, sbservices_interface_orientation_t* interface_orientation)
	{
	if (!client \|\| !client->parent \|\| !interface_orientation)
	return SBSERVICES_E_INVALID_ARG;

	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_insert_item(dict, "command", plist_new_string("getInterfaceOrientation"));

	sbs_lock(client);

	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
	if (res != SBSERVICES_E_SUCCESS) {
	debug_info("could not send plist, error %d", res);
	goto leave_unlock;
	}
	plist_free(dict);
	dict = NULL;

	res = sbservices_error(property_list_service_receive_plist(client->parent, &dict));
	if (res == SBSERVICES_E_SUCCESS) {
	plist_t node = plist_dict_get_item(dict, "interfaceOrientation");
	if (node) {
	uint64_t value = SBSERVICES_INTERFACE_ORIENTATION_UNKNOWN;
	plist_get_uint_val(node, &value);
	*interface_orientation = (sbservices_interface_orientation_t)value;
	}
	}

	leave_unlock:
	if (dict) {
	plist_free(dict);
	}
	sbs_unlock(client);
	return res;
	}

	/**
	* Get the home screen wallpaper as PNG data.
	*
	* @param client The connected sbservices client to use.
	* @param pngdata Pointer that will point to a newly allocated buffer
	* containing the PNG data upon successful return. It is up to the caller
	* to free the memory.
	* @param pngsize Pointer to a uint64_t that will be set to the size of the
	* buffer pngdata points to upon successful return.
	*
	* @return SBSERVICES_E_SUCCESS on success, SBSERVICES_E_INVALID_ARG when
	* client or pngdata are invalid, or an SBSERVICES_E_* error
	* code otherwise.
	*/
	sbservices_error_t sbservices_get_home_screen_wallpaper_pngdata(sbservices_client_t client, char *pngdata, uint64_t pngsize)
	{
	if (!client \|\| !client->parent \|\| !pngdata)
	return SBSERVICES_E_INVALID_ARG;

	sbservices_error_t res = SBSERVICES_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_insert_item(dict, "command", plist_new_string("getHomeScreenWallpaperPNGData"));

	sbs_lock(client);

	res = sbservices_error(property_list_service_send_binary_plist(client->parent, dict));
	if (res != SBSERVICES_E_SUCCESS) {
	debug_info("could not send plist, error %d", res);
	goto leave_unlock;
	}
	plist_free(dict);

	dict = NULL;
	res = sbservices_error(property_list_service_receive_plist(client->parent, &dict));
	if (res == SBSERVICES_E_SUCCESS) {
	plist_t node = plist_dict_get_item(dict, "pngData");
	if (node) {
	plist_get_data_val(node, pngdata, pngsize);
	}
	}

	leave_unlock:
	if (dict) {
	plist_free(dict);
	}
	sbs_unlock(client);
	return res;
	}