diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.am | 1 | ||||
| -rw-r--r-- | src/screenshotr.c | 186 | ||||
| -rw-r--r-- | src/screenshotr.h | 31 |
3 files changed, 218 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index e847d7c..87fada0 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -17,5 +17,6 @@ libimobiledevice_la_SOURCES = idevice.c idevice.h \ installation_proxy.c installation_proxy.h\ sbservices.c sbservices.h\ mobile_image_mounter.c mobile_image_mounter.h\ + screenshotr.c screenshotr.h\ mobilesync.c mobilesync.h\ mobilebackup.c mobilebackup.h diff --git a/src/screenshotr.c b/src/screenshotr.c new file mode 100644 index 0000000..f8866d0 --- /dev/null +++ b/src/screenshotr.c @@ -0,0 +1,186 @@ +/* + * screenshotr.c + * com.apple.mobile.screenshotr implementation. + * + * Copyright (c) 2010 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 <plist/plist.h> +#include <string.h> +#include <stdlib.h> +#include <arpa/inet.h> + +#include "screenshotr.h" +#include "device_link_service.h" +#include "debug.h" + +#define SCREENSHOTR_VERSION_INT1 100 +#define SCREENSHOTR_VERSION_INT2 0 + +/** + * Convert a device_link_service_error_t value to a screenshotr_error_t value. + * Used internally to get correct error codes. + * + * @param err An device_link_service_error_t error code + * + * @return A matching screenshotr_error_t error code, + * SCREENSHOTR_E_UNKNOWN_ERROR otherwise. + */ +static screenshotr_error_t screenshotr_error(device_link_service_error_t err) +{ + switch (err) { + case DEVICE_LINK_SERVICE_E_SUCCESS: + return SCREENSHOTR_E_SUCCESS; + case DEVICE_LINK_SERVICE_E_INVALID_ARG: + return SCREENSHOTR_E_INVALID_ARG; + case DEVICE_LINK_SERVICE_E_PLIST_ERROR: + return SCREENSHOTR_E_PLIST_ERROR; + case DEVICE_LINK_SERVICE_E_MUX_ERROR: + return SCREENSHOTR_E_MUX_ERROR; + case DEVICE_LINK_SERVICE_E_BAD_VERSION: + return SCREENSHOTR_E_BAD_VERSION; + default: + break; + } + return SCREENSHOTR_E_UNKNOWN_ERROR; +} + +/** + * Makes a connection to the screenshotr service on the device. + * + * @param device The device to connect to. + * @param port Destination port (usually given by lockdownd_start_service). + * @param client Pointer that will be set to a newly allocated + * screenshotr_client_t upon successful return. + * + * @return SCREENSHOTR_E_SUCCESS on success, SCREENSHOTR_E_INVALID ARG if one + * or more parameters are invalid, or SCREENSHOTR_E_CONN_FAILED if the + * connection to the device could not be established. + */ +screenshotr_error_t screenshotr_client_new(idevice_t device, uint16_t port, + screenshotr_client_t * client) +{ + if (!device || port == 0 || !client || *client) + return SCREENSHOTR_E_INVALID_ARG; + + device_link_service_client_t dlclient = NULL; + screenshotr_error_t ret = screenshotr_error(device_link_service_client_new(device, port, &dlclient)); + if (ret != SCREENSHOTR_E_SUCCESS) { + return ret; + } + + screenshotr_client_t client_loc = (screenshotr_client_t) malloc(sizeof(struct screenshotr_client_int)); + client_loc->parent = dlclient; + + /* perform handshake */ + ret = screenshotr_error(device_link_service_version_exchange(dlclient, SCREENSHOTR_VERSION_INT1, SCREENSHOTR_VERSION_INT2)); + if (ret != SCREENSHOTR_E_SUCCESS) { + debug_info("version exchange failed, error %d", ret); + screenshotr_client_free(client_loc); + return ret; + } + + *client = client_loc; + + return ret; +} + +/** + * Disconnects a screenshotr client from the device. + * + * @param client The client to disconnect. + * + * @return SCREENSHOTR_E_SUCCESS on success, or SCREENSHOTR_E_INVALID_ARG + * if client is NULL. + */ +screenshotr_error_t screenshotr_client_free(screenshotr_client_t client) +{ + if (!client) + return SCREENSHOTR_E_INVALID_ARG; + device_link_service_disconnect(client->parent); + screenshotr_error_t err = screenshotr_error(device_link_service_client_free(client->parent)); + free(client); + return err; +} + +/** + * Get a screen shot from the connected device. + * + * @param client The connection screenshotr service client. + * @param imgdata Pointer that will point to a newly allocated buffer + * containing TIFF image data upon successful return. It is up to the + * caller to free the memory. + * @param imgsize Pointer to a uint64_t that will be set to the size of the + * buffer imgdata points to upon successful return. + * + * @return SCREENSHOTR_E_SUCCESS on success, SCREENSHOTR_E_INVALID_ARG if + * one or more parameters are invalid, or another error code if an + * error occured. + */ +screenshotr_error_t screenshotr_take_screenshot(screenshotr_client_t client, char **imgdata, uint64_t *imgsize) +{ + if (!client || !client->parent || !imgdata) + return SCREENSHOTR_E_INVALID_ARG; + + screenshotr_error_t res = SCREENSHOTR_E_UNKNOWN_ERROR; + + plist_t dict = plist_new_dict(); + plist_dict_insert_item(dict, "MessageType", plist_new_string("ScreenShotRequest")); + + res = screenshotr_error(device_link_service_process_message(client->parent, dict)); + plist_free(dict); + if (res != SCREENSHOTR_E_SUCCESS) { + debug_info("could not send plist, error %d", res); + return res; + } + + dict = NULL; + res = screenshotr_error(device_link_service_get_process_message(client->parent, &dict)); + if (res != SCREENSHOTR_E_SUCCESS) { + debug_info("could not get screenshot data, error %d", res); + goto leave; + } + if (!dict) { + debug_info("did not receive screenshot data!"); + res = SCREENSHOTR_E_PLIST_ERROR; + goto leave; + } + + plist_t node = plist_dict_get_item(dict, "MessageType"); + char *strval = NULL; + plist_get_string_val(node, &strval); + if (!strval || strcmp(strval, "ScreenShotReply")) { + debug_info("invalid screenshot data received!"); + res = SCREENSHOTR_E_PLIST_ERROR; + goto leave; + } + node = plist_dict_get_item(dict, "ScreenShotData"); + if (!node || plist_get_node_type(node) != PLIST_DATA) { + debug_info("no PNG data received!"); + res = SCREENSHOTR_E_PLIST_ERROR; + goto leave; + } + + plist_get_data_val(node, imgdata, imgsize); + res = SCREENSHOTR_E_SUCCESS; + +leave: + if (dict) + plist_free(dict); + + return res; +} diff --git a/src/screenshotr.h b/src/screenshotr.h new file mode 100644 index 0000000..5f842a7 --- /dev/null +++ b/src/screenshotr.h @@ -0,0 +1,31 @@ +/* + * screenshotr.h + * com.apple.mobile.screenshotr definitions. + * + * Copyright (c) 2010 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 + */ +#ifndef SCREENSHOTR_H +#define SCREENSHOTR_H + +#include "libimobiledevice/screenshotr.h" +#include "device_link_service.h" + +struct screenshotr_client_int { + device_link_service_client_t parent; +}; + +#endif |