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-rw-r--r--src/AFC.c1018
1 files changed, 0 insertions, 1018 deletions
diff --git a/src/AFC.c b/src/AFC.c
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--- a/src/AFC.c
+++ /dev/null
@@ -1,1018 +0,0 @@
-/*
- * AFC.c
- * Contains functions for the built-in AFC client.
- *
- * Copyright (c) 2008 Zach C. 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 <stdio.h>
-#include "AFC.h"
-#include "plist.h"
-
-
-// This is the maximum size an AFC data packet can be
-const int MAXIMUM_PACKET_SIZE = (2 << 15) - 32;
-
-/** Locks an AFC client, done for thread safety stuff
- *
- * @param client The AFC client connection to lock
- */
-static void afc_lock(iphone_afc_client_t client)
-{
- log_debug_msg("Locked\n");
- /*while (client->lock) {
- usleep(500); // they say it's obsolete, but whatever
- }
- client->lock = 1; */
- g_mutex_lock(client->mutex);
-}
-
-/** Unlocks an AFC client, done for thread safety stuff.
- *
- * @param client The AFC
- */
-static void afc_unlock(iphone_afc_client_t client)
-{ // just to be pretty
- log_debug_msg("Unlocked\n");
- //client->lock = 0;
- g_mutex_unlock(client->mutex);
-}
-
-/** Makes a connection to the AFC service on the phone.
- *
- * @param phone The iPhone to connect on.
- * @param s_port The source port.
- * @param d_port The destination port.
- *
- * @return A handle to the newly-connected client or NULL upon error.
- */
-iphone_error_t iphone_afc_new_client(iphone_device_t device, int src_port, int dst_port, iphone_afc_client_t * client)
-{
- int ret = IPHONE_E_SUCCESS;
-
- //makes sure thread environment is available
- if (!g_thread_supported())
- g_thread_init(NULL);
- iphone_afc_client_t client_loc = (iphone_afc_client_t) malloc(sizeof(struct iphone_afc_client_int));
-
- if (!device)
- return IPHONE_E_INVALID_ARG;
-
- // Attempt connection
- client_loc->connection = NULL;
- ret = iphone_mux_new_client(device, src_port, dst_port, &client_loc->connection);
- if (IPHONE_E_SUCCESS != ret || !client_loc->connection) {
- free(client_loc);
- return ret;
- }
- // Allocate a packet
- client_loc->afc_packet = (AFCPacket *) malloc(sizeof(AFCPacket));
- if (!client_loc->afc_packet) {
- iphone_mux_free_client(client_loc->connection);
- free(client_loc);
- return IPHONE_E_UNKNOWN_ERROR;
- }
-
- client_loc->afc_packet->packet_num = 0;
- client_loc->afc_packet->unknown1 = 0;
- client_loc->afc_packet->unknown2 = 0;
- client_loc->afc_packet->unknown3 = 0;
- client_loc->afc_packet->unknown4 = 0;
- client_loc->afc_packet->entire_length = 0;
- client_loc->afc_packet->this_length = 0;
- client_loc->afc_packet->header1 = 0x36414643;
- client_loc->afc_packet->header2 = 0x4141504C;
- client_loc->file_handle = 0;
- client_loc->lock = 0;
- client_loc->mutex = g_mutex_new();
-
- *client = client_loc;
- return IPHONE_E_SUCCESS;
-}
-
-/** Disconnects an AFC client from the phone.
- *
- * @param client The client to disconnect.
- */
-iphone_error_t iphone_afc_free_client(iphone_afc_client_t client)
-{
- if (!client || !client->connection || !client->afc_packet)
- return IPHONE_E_INVALID_ARG;
-
- iphone_mux_free_client(client->connection);
- free(client->afc_packet);
- free(client);
- return IPHONE_E_SUCCESS;
-}
-
-
-/** Dispatches an AFC packet over a client.
- *
- * @param client The client to send data through.
- * @param data The data to send.
- * @param length The length to send.
- *
- * @return The number of bytes actually sent, or -1 on error.
- *
- * @warning set client->afc_packet->this_length and
- * client->afc_packet->entire_length to 0 before calling this. The
- * reason is that if you set them to different values, it indicates
- * you want to send the data as two packets.
- */
-static int dispatch_AFC_packet(iphone_afc_client_t client, const char *data, int length)
-{
- int bytes = 0, offset = 0;
- char *buffer;
-
- if (!client || !client->connection || !client->afc_packet)
- return 0;
- if (!data || !length)
- length = 0;
-
- client->afc_packet->packet_num++;
- if (!client->afc_packet->entire_length) {
- client->afc_packet->entire_length = (length) ? sizeof(AFCPacket) + length + 1 : sizeof(AFCPacket);
- client->afc_packet->this_length = client->afc_packet->entire_length;
- }
- if (!client->afc_packet->this_length) {
- client->afc_packet->this_length = sizeof(AFCPacket);
- }
- // We want to send two segments; buffer+sizeof(AFCPacket) to
- // this_length is the parameters
- // And everything beyond that is the next packet. (for writing)
- if (client->afc_packet->this_length != client->afc_packet->entire_length) {
- buffer = (char *) malloc(client->afc_packet->this_length);
- memcpy(buffer, (char *) client->afc_packet, sizeof(AFCPacket));
- offset = client->afc_packet->this_length - sizeof(AFCPacket);
-
- log_debug_msg("dispatch_AFC_packet: Offset: %i\n", offset);
- if ((length) < (client->afc_packet->entire_length - client->afc_packet->this_length)) {
- log_debug_msg("dispatch_AFC_packet: Length did not resemble what it was supposed");
- log_debug_msg("to based on the packet.\n");
- log_debug_msg("length minus offset: %i\n", length - offset);
- log_debug_msg("rest of packet: %i\n", client->afc_packet->entire_length - client->afc_packet->this_length);
- free(buffer);
- return -1;
- }
- memcpy(buffer + sizeof(AFCPacket), data, offset);
- iphone_mux_send(client->connection, buffer, client->afc_packet->this_length, &bytes);
- free(buffer);
- if (bytes <= 0) {
- return bytes;
- }
-
- log_debug_msg("dispatch_AFC_packet: sent the first now go with the second\n");
- log_debug_msg("Length: %i\n", length - offset);
- log_debug_msg("Buffer: \n");
- log_debug_msg(data + offset);
-
- iphone_mux_send(client->connection, data + offset, length - offset, &bytes);
- return bytes;
- } else {
- log_debug_msg("dispatch_AFC_packet doin things the old way\n");
- char *buffer = (char *) malloc(sizeof(char) * client->afc_packet->this_length);
- log_debug_msg("dispatch_AFC_packet packet length = %i\n", client->afc_packet->this_length);
- memcpy(buffer, (char *) client->afc_packet, sizeof(AFCPacket));
- log_debug_msg("dispatch_AFC_packet packet data follows\n");
- if (length > 0) {
- memcpy(buffer + sizeof(AFCPacket), data, length);
- buffer[sizeof(AFCPacket) + length] = '\0';
- }
- log_debug_buffer(buffer, client->afc_packet->this_length);
- log_debug_msg("\n");
- iphone_mux_send(client->connection, buffer, client->afc_packet->this_length, &bytes);
-
- if (buffer) {
- free(buffer);
- buffer = NULL;
- }
- return bytes;
- }
- return -1;
-}
-
-/** Receives data through an AFC client and sets a variable to the received data.
- *
- * @param client The client to receive data on.
- * @param dump_here The char* to point to the newly-received data.
- *
- * @return How much data was received, 0 on successful receive with no errors,
- * -1 if there was an error involved with receiving or if the packet
- * received raised a non-trivial error condition (i.e. non-zero with
- * AFC_ERROR operation)
- */
-
-static int receive_AFC_data(iphone_afc_client_t client, char **dump_here)
-{
- AFCPacket *r_packet;
- char *buffer = (char *) malloc(sizeof(AFCPacket) * 4);
- char *final_buffer = NULL;
- int bytes = 0, recv_len = 0, current_count = 0;
- int retval = 0;
-
- iphone_mux_recv(client->connection, buffer, sizeof(AFCPacket) * 4, &bytes);
- if (bytes <= 0) {
- free(buffer);
- fprintf(stderr, "Just didn't get enough.\n");
- *dump_here = NULL;
- return -1;
- }
-
- r_packet = (AFCPacket *) malloc(sizeof(AFCPacket));
- memcpy(r_packet, buffer, sizeof(AFCPacket));
-
- if (r_packet->entire_length == r_packet->this_length
- && r_packet->entire_length > sizeof(AFCPacket) && r_packet->operation != AFC_ERROR) {
- *dump_here = (char *) malloc(sizeof(char) * (r_packet->entire_length - sizeof(AFCPacket)));
- memcpy(*dump_here, buffer + sizeof(AFCPacket), r_packet->entire_length - sizeof(AFCPacket));
- retval = r_packet->entire_length - sizeof(AFCPacket);
- free(buffer);
- free(r_packet);
- return retval;
- }
-
- uint32_t param1 = buffer[sizeof(AFCPacket)];
- free(buffer);
-
- if (r_packet->operation == AFC_ERROR && !(client->afc_packet->operation == AFC_DELETE && param1 == 7)) {
- log_debug_msg("Oops? Bad operation code received: 0x%X, operation=0x%X, param1=%d\n",
- r_packet->operation, client->afc_packet->operation, param1);
- recv_len = r_packet->entire_length - r_packet->this_length;
- free(r_packet);
- log_debug_msg("recv_len=%d\n", recv_len);
- if (param1 == 0) {
- log_debug_msg("... false alarm, but still\n");
- *dump_here = NULL;
- return 0;
- } else {
- log_debug_msg("Errno %i\n", param1);
- }
- *dump_here = NULL;
- return -1;
- } else {
- log_debug_msg("Operation code %x\nFull length %i and this length %i\n",
- r_packet->operation, r_packet->entire_length, r_packet->this_length);
- }
-
- recv_len = r_packet->entire_length - r_packet->this_length;
- free(r_packet);
- if (!recv_len && r_packet->operation == AFC_SUCCESS_RESPONSE) {
- *dump_here = NULL;
- return 0;
- }
- // Keep collecting packets until we have received the entire file.
- buffer = (char *) malloc(sizeof(char) * (recv_len < MAXIMUM_PACKET_SIZE) ? recv_len : MAXIMUM_PACKET_SIZE);
- final_buffer = (char *) malloc(sizeof(char) * recv_len);
- while (current_count < recv_len) {
- iphone_mux_recv(client->connection, buffer, recv_len - current_count, &bytes);
- log_debug_msg("receive_AFC_data: still collecting packets\n");
- if (bytes < 0) {
- log_debug_msg("receive_AFC_data: mux_recv failed: %d\n", bytes);
- break;
- }
- if (bytes > recv_len - current_count) {
- log_debug_msg("receive_AFC_data: mux_recv delivered too much data\n");
- break;
- }
- if (bytes > 7 && strstr(buffer, "CFA6LPAA")) {
- log_debug_msg("receive_AFC_data: WARNING: there is AFC data in this packet at %ti\n",
- strstr(buffer, "CFA6LPAA") - buffer);
- log_debug_msg("receive_AFC_data: the total packet length is %i\n", bytes);
- }
-
- memcpy(final_buffer + current_count, buffer, bytes);
- current_count += bytes;
- }
- free(buffer);
-
- *dump_here = final_buffer;
- return current_count;
-}
-
-static int count_nullspaces(char *string, int number)
-{
- int i = 0, nulls = 0;
-
- for (i = 0; i < number; i++) {
- if (string[i] == '\0')
- nulls++;
- }
-
- return nulls;
-}
-
-static char **make_strings_list(char *tokens, int true_length)
-{
- int nulls = 0, i = 0, j = 0;
- char **list = NULL;
-
- if (!tokens || !true_length)
- return NULL;
-
- nulls = count_nullspaces(tokens, true_length);
- list = (char **) malloc(sizeof(char *) * (nulls + 1));
- for (i = 0; i < nulls; i++) {
- list[i] = strdup(tokens + j);
- j += strlen(list[i]) + 1;
- }
- list[i] = NULL;
-
- return list;
-}
-
-/** Gets a directory listing of the directory requested.
- *
- * @param client The client to get a directory listing from.
- * @param dir The directory to list. (must be a fully-qualified path)
- *
- * @return A char ** list of files in that directory, terminated by an empty
- * string for now or NULL if there was an error.
- */
-iphone_error_t iphone_afc_get_dir_list(iphone_afc_client_t client, const char *dir, char ***list)
-{
- int bytes = 0;
- char *data = NULL, **list_loc = NULL;
- iphone_error_t ret = IPHONE_E_UNKNOWN_ERROR;
-
- if (!client || !dir || !list || (list && *list))
- return IPHONE_E_INVALID_ARG;
-
- afc_lock(client);
-
- // Send the command
- client->afc_packet->operation = AFC_LIST_DIR;
- client->afc_packet->entire_length = 0;
- client->afc_packet->this_length = 0;
- bytes = dispatch_AFC_packet(client, dir, strlen(dir));
- if (bytes <= 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive the data
- bytes = receive_AFC_data(client, &data);
- if (bytes < 0 && !data) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Parse the data
- list_loc = make_strings_list(data, bytes);
- if (list_loc)
- ret = IPHONE_E_SUCCESS;
- if (data)
- free(data);
-
- afc_unlock(client);
- *list = list_loc;
-
- return ret;
-}
-
-/** Get device info for a client connection to phone. (free space on disk, etc.)
- *
- * @param client The client to get device info for.
- *
- * @return A char ** list of parameters as given by AFC or NULL if there was an
- * error.
- */
-iphone_error_t iphone_afc_get_devinfo(iphone_afc_client_t client, char ***infos)
-{
- int bytes = 0;
- char *data = NULL, **list = NULL;
-
- if (!client || !infos)
- return IPHONE_E_INVALID_ARG;
-
- afc_lock(client);
-
- // Send the command
- client->afc_packet->operation = AFC_GET_DEVINFO;
- client->afc_packet->entire_length = client->afc_packet->this_length = 0;
- bytes = dispatch_AFC_packet(client, NULL, 0);
- if (bytes < 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive the data
- bytes = receive_AFC_data(client, &data);
- if (bytes < 0 && !data) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Parse the data
- list = make_strings_list(data, bytes);
- if (data)
- free(data);
-
- afc_unlock(client);
- *infos = list;
- return IPHONE_E_SUCCESS;
-}
-
-/** Deletes a file.
- *
- * @param client The client to have delete the file.
- * @param path The file to delete. (must be a fully-qualified path)
- *
- * @return IPHONE_E_SUCCESS if everythong went well, IPHONE_E_INVALID_ARG
- * if arguments are NULL or invalid, IPHONE_E_NOT_ENOUGH_DATA otherwise.
- */
-iphone_error_t iphone_afc_delete_file(iphone_afc_client_t client, const char *path)
-{
- char *response = NULL;
- int bytes;
-
- if (!client || !path || !client->afc_packet || !client->connection)
- return IPHONE_E_INVALID_ARG;
-
- afc_lock(client);
-
- // Send command
- client->afc_packet->this_length = client->afc_packet->entire_length = 0;
- client->afc_packet->operation = AFC_DELETE;
- bytes = dispatch_AFC_packet(client, path, strlen(path));
- if (bytes <= 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive response
- bytes = receive_AFC_data(client, &response);
- if (response)
- free(response);
-
- afc_unlock(client);
-
- if (bytes < 0) {
- return IPHONE_E_NOT_ENOUGH_DATA;
- } else {
- return IPHONE_E_SUCCESS;
- }
-}
-
-/** Renames a file on the phone.
- *
- * @param client The client to have rename the file.
- * @param from The file to rename. (must be a fully-qualified path)
- * @param to The new name of the file. (must also be a fully-qualified path)
- *
- * @return IPHONE_E_SUCCESS if everythong went well, IPHONE_E_INVALID_ARG
- * if arguments are NULL or invalid, IPHONE_E_NOT_ENOUGH_DATA otherwise.
- */
-iphone_error_t iphone_afc_rename_file(iphone_afc_client_t client, const char *from, const char *to)
-{
- char *response = NULL;
- char *send = (char *) malloc(sizeof(char) * (strlen(from) + strlen(to) + 1 + sizeof(uint32_t)));
- int bytes = 0;
-
- if (!client || !from || !to || !client->afc_packet || !client->connection)
- return IPHONE_E_INVALID_ARG;
-
- afc_lock(client);
-
- // Send command
- memcpy(send, from, strlen(from) + 1);
- memcpy(send + strlen(from) + 1, to, strlen(to) + 1);
- client->afc_packet->entire_length = client->afc_packet->this_length = 0;
- client->afc_packet->operation = AFC_RENAME;
- bytes = dispatch_AFC_packet(client, send, strlen(to) + strlen(from) + 2);
- free(send);
- if (bytes <= 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive response
- bytes = receive_AFC_data(client, &response);
- if (response)
- free(response);
-
- afc_unlock(client);
-
- if (bytes < 0) {
- return IPHONE_E_NOT_ENOUGH_DATA;
- } else {
- return IPHONE_E_SUCCESS;
- }
-}
-
-/** Creates a directory on the phone.
- *
- * @param client The client to use to make a directory.
- * @param dir The directory's path. (must be a fully-qualified path, I assume
- * all other mkdir restrictions apply as well)
- *
- * @return IPHONE_E_SUCCESS if everythong went well, IPHONE_E_INVALID_ARG
- * if arguments are NULL or invalid, IPHONE_E_NOT_ENOUGH_DATA otherwise.
- */
-iphone_error_t iphone_afc_mkdir(iphone_afc_client_t client, const char *dir)
-{
- int bytes = 0;
- char *response = NULL;
-
- if (!client)
- return IPHONE_E_INVALID_ARG;
-
- afc_lock(client);
-
- // Send command
- client->afc_packet->operation = AFC_MAKE_DIR;
- client->afc_packet->this_length = client->afc_packet->entire_length = 0;
- bytes = dispatch_AFC_packet(client, dir, strlen(dir));
- if (bytes <= 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive response
- bytes = receive_AFC_data(client, &response);
- if (response)
- free(response);
-
- afc_unlock(client);
-
- if (bytes < 0) {
- return IPHONE_E_NOT_ENOUGH_DATA;
- } else {
- return IPHONE_E_SUCCESS;
- }
-}
-
-/** Gets information about a specific file.
- *
- * @param client The client to use to get the information of the file.
- * @param path The fully-qualified path to the file.
- *
- * @return A pointer to an AFCFile struct containing the information received,
- * or NULL on failure.
- */
-iphone_afc_file_t afc_get_file_info(iphone_afc_client_t client, const char *path)
-{
- char *received, **list;
- iphone_afc_file_t my_file;
- int length, i = 0;
-
- afc_lock(client);
-
- // Send command
- client->afc_packet->operation = AFC_GET_INFO;
- client->afc_packet->entire_length = client->afc_packet->this_length = 0;
- dispatch_AFC_packet(client, path, strlen(path));
-
- // Receive data
- length = receive_AFC_data(client, &received);
- if (received) {
- list = make_strings_list(received, length);
- free(received);
- } else {
- afc_unlock(client);
- return NULL;
- }
-
- afc_unlock(client);
-
- // Parse the data
- if (list) {
- my_file = (iphone_afc_file_t) malloc(sizeof(struct iphone_afc_file_int));
- for (i = 0; list[i]; i++) {
- if (!strcmp(list[i], "st_size")) {
- my_file->size = atoi(list[i + 1]);
- }
-
- if (!strcmp(list[i], "st_blocks")) {
- my_file->blocks = atoi(list[i + 1]);
- }
-
- if (!strcmp(list[i], "st_ifmt")) {
- if (!strcmp(list[i + 1], "S_IFREG")) {
- my_file->type = S_IFREG;
- } else if (!strcmp(list[i + 1], "S_IFDIR")) {
- my_file->type = S_IFDIR;
- }
- }
- }
- g_strfreev(list);
- return my_file;
- } else {
- return NULL;
- }
-}
-
-/** Gets information about a specific file.
- *
- * @param client The client to use to get the information of the file.
- * @param path The fully-qualified path to the file
- * @param stbuf output buffer where file information will be stored
- *
- * @return A pointer to an AFCFile struct containing the information received,
- * or NULL on failure.
- */
-iphone_error_t iphone_afc_get_file_attr(iphone_afc_client_t client, const char *filename, struct stat * stbuf)
-{
-
- iphone_error_t ret = IPHONE_E_UNKNOWN_ERROR;
- if (!client || !client->connection || !client->afc_packet || !stbuf)
- return IPHONE_E_INVALID_ARG;
-
- memset(stbuf, 0, sizeof(struct stat));
- iphone_afc_file_t file = afc_get_file_info(client, filename);
- if (!file) {
- ret = IPHONE_E_NO_SUCH_FILE;
- } else {
- stbuf->st_mode = file->type | (S_ISDIR(file->type) ? 0755 : 0644);
- stbuf->st_size = file->size;
- stbuf->st_blksize = 2048; // FIXME: Is this the actual block
- // size used on the iPhone?
- stbuf->st_blocks = file->blocks;
- stbuf->st_uid = getuid();
- stbuf->st_gid = getgid();
-
- ret = iphone_afc_close_file(client, file);
- }
- return ret;
-}
-
-/** Opens a file on the phone.
- *
- * @param client The client to use to open the file.
- * @param filename The file to open. (must be a fully-qualified path)
- * @param file_mode The mode to use to open the file. Can be AFC_FILE_READ or
- * AFC_FILE_WRITE; the former lets you read and write,
- * however, and the second one will *create* the file,
- * destroying anything previously there.
- *
- * @return A pointer to an AFCFile struct containing the file information (as
- * received by afc_get_file_info) as well as the handle to the file or
- * NULL in the case of failure.
- */
-iphone_error_t
-iphone_afc_open_file(iphone_afc_client_t client, const char *filename,
- iphone_afc_file_mode_t file_mode, iphone_afc_file_t * file)
-{
- iphone_afc_file_t file_loc = NULL;
- uint32_t ag = 0;
- int bytes = 0, length = 0;
- char *data = (char *) malloc(sizeof(char) * (8 + strlen(filename) + 1));
-
- if (!client || !client->connection || !client->afc_packet)
- return IPHONE_E_INVALID_ARG;
-
- afc_lock(client);
-
- // Send command
- memcpy(data, &file_mode, 4);
- memcpy(data + 4, &ag, 4);
- memcpy(data + 8, filename, strlen(filename));
- data[8 + strlen(filename)] = '\0';
- client->afc_packet->operation = AFC_FILE_OPEN;
- client->afc_packet->entire_length = client->afc_packet->this_length = 0;
- bytes = dispatch_AFC_packet(client, data, 8 + strlen(filename));
- free(data);
-
- if (bytes <= 0) {
- log_debug_msg("afc_open_file: Didn't receive a response to the command\n");
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive the data
- length = receive_AFC_data(client, &data);
- if (length > 0 && data) {
- afc_unlock(client);
-
- // Get the file info and return it
- file_loc = afc_get_file_info(client, filename);
- memcpy(&file_loc->filehandle, data, 4);
- free(data);
- *file = file_loc;
- return IPHONE_E_SUCCESS;
- } else {
- log_debug_msg("afc_open_file: Didn't get any further data\n");
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
-
- afc_unlock(client);
-
- return IPHONE_E_UNKNOWN_ERROR;
-}
-
-/** Attempts to the read the given number of bytes from the given file.
- *
- * @param client The relevant AFC client
- * @param file The AFCFile to read from
- * @param data The pointer to the memory region to store the read data
- * @param length The number of bytes to read
- *
- * @return The number of bytes read if successful. If there was an error -1.
- */
-iphone_error_t
-iphone_afc_read_file(iphone_afc_client_t client, iphone_afc_file_t file, char *data, int length, uint32_t * bytes)
-{
- char *input = NULL;
- int current_count = 0, bytes_loc = 0;
- const int MAXIMUM_READ_SIZE = 1 << 16;
-
- if (!client || !client->afc_packet || !client->connection || !file)
- return IPHONE_E_INVALID_ARG;
- log_debug_msg("afc_read_file called for length %i\n", length);
-
- afc_lock(client);
-
- // Looping here to get around the maximum amount of data that
- // recieve_AFC_data can handle
- while (current_count < length) {
- log_debug_msg("afc_read_file: current count is %i but length is %i\n", current_count, length);
-
- // Send the read command
- AFCFilePacket *packet = (AFCFilePacket *) malloc(sizeof(AFCFilePacket));
- packet->unknown1 = packet->unknown2 = 0;
- packet->filehandle = file->filehandle;
- packet->size = ((length - current_count) < MAXIMUM_READ_SIZE) ? (length - current_count) : MAXIMUM_READ_SIZE;
- client->afc_packet->operation = AFC_READ;
- client->afc_packet->entire_length = client->afc_packet->this_length = 0;
- bytes_loc = dispatch_AFC_packet(client, (char *) packet, sizeof(AFCFilePacket));
- free(packet);
-
- if (bytes_loc <= 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive the data
- bytes_loc = receive_AFC_data(client, &input);
- log_debug_msg("afc_read_file: bytes returned: %i\n", bytes_loc);
- if (bytes_loc < 0) {
- if (input)
- free(input);
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- } else if (bytes_loc == 0) {
- if (input)
- free(input);
- afc_unlock(client);
- *bytes = current_count;
- return IPHONE_E_SUCCESS; // FIXME check that's actually a
- // success
- } else {
- if (input) {
- log_debug_msg("afc_read_file: %d\n", bytes_loc);
- memcpy(data + current_count, input, (bytes_loc > length) ? length : bytes_loc);
- free(input);
- input = NULL;
- current_count += (bytes_loc > length) ? length : bytes_loc;
- }
- }
- }
- log_debug_msg("afc_read_file: returning current_count as %i\n", current_count);
-
- afc_unlock(client);
- *bytes = current_count;
- return IPHONE_E_SUCCESS;
-}
-
-/** Writes a given number of bytes to a file.
- *
- * @param client The client to use to write to the file.
- * @param file A pointer to an AFCFile struct; serves as the file handle.
- * @param data The data to write to the file.
- * @param length How much data to write.
- *
- * @return The number of bytes written to the file, or a value less than 0 if
- * none were written...
- */
-iphone_error_t
-iphone_afc_write_file(iphone_afc_client_t client, iphone_afc_file_t file,
- const char *data, int length, uint32_t * bytes)
-{
- char *acknowledgement = NULL;
- const int MAXIMUM_WRITE_SIZE = 1 << 15;
- uint32_t zero = 0, bytes_loc = 0, segments = (length / MAXIMUM_WRITE_SIZE), current_count = 0, i = 0;
- char *out_buffer = NULL;
-
- if (!client || !client->afc_packet || !client->connection || !file || !bytes)
- return IPHONE_E_INVALID_ARG;
-
- afc_lock(client);
-
- log_debug_msg("afc_write_file: Write length: %i\n", length);
-
- // Divide the file into segments.
- for (i = 0; i < segments; i++) {
- // Send the segment
- client->afc_packet->this_length = sizeof(AFCPacket) + 8;
- client->afc_packet->entire_length = client->afc_packet->this_length + MAXIMUM_WRITE_SIZE;
- client->afc_packet->operation = AFC_WRITE;
- out_buffer = (char *) malloc(sizeof(char) * client->afc_packet->entire_length - sizeof(AFCPacket));
- memcpy(out_buffer, (char *) &file->filehandle, sizeof(uint32_t));
- memcpy(out_buffer + 4, (char *) &zero, sizeof(uint32_t));
- memcpy(out_buffer + 8, data + current_count, MAXIMUM_WRITE_SIZE);
- bytes_loc = dispatch_AFC_packet(client, out_buffer, MAXIMUM_WRITE_SIZE + 8);
- if (bytes_loc < 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- free(out_buffer);
- out_buffer = NULL;
-
- current_count += bytes_loc;
- bytes_loc = receive_AFC_data(client, &acknowledgement);
- if (bytes_loc < 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- }
-
- // By this point, we should be at the end. i.e. the last segment that
- // didn't get sent in the for loop
- // this length is fine because it's always sizeof(AFCPacket) + 8, but
- // to be sure we do it again
- if (current_count == length) {
- afc_unlock(client);
- *bytes = current_count;
- return IPHONE_E_SUCCESS;
- }
-
- client->afc_packet->this_length = sizeof(AFCPacket) + 8;
- client->afc_packet->entire_length = client->afc_packet->this_length + (length - current_count);
- client->afc_packet->operation = AFC_WRITE;
- out_buffer = (char *) malloc(sizeof(char) * client->afc_packet->entire_length - sizeof(AFCPacket));
- memcpy(out_buffer, (char *) &file->filehandle, sizeof(uint32_t));
- memcpy(out_buffer + 4, (char *) &zero, sizeof(uint32_t));
- memcpy(out_buffer + 8, data + current_count, (length - current_count));
- bytes_loc = dispatch_AFC_packet(client, out_buffer, (length - current_count) + 8);
- free(out_buffer);
- out_buffer = NULL;
-
- current_count += bytes_loc;
-
- if (bytes_loc <= 0) {
- afc_unlock(client);
- *bytes = current_count;
- return IPHONE_E_SUCCESS;
- }
-
- zero = bytes_loc;
- bytes_loc = receive_AFC_data(client, &acknowledgement);
- afc_unlock(client);
- if (bytes_loc < 0) {
- log_debug_msg("afc_write_file: uh oh?\n");
- }
- *bytes = current_count;
- return IPHONE_E_SUCCESS;
-}
-
-/** Closes a file on the phone.
- *
- * @param client The client to close the file with.
- * @param file A pointer to an AFCFile struct containing the file handle of the
- * file to close.
- */
-iphone_error_t iphone_afc_close_file(iphone_afc_client_t client, iphone_afc_file_t file)
-{
- if (!client || !file)
- return IPHONE_E_INVALID_ARG;
- char *buffer = malloc(sizeof(char) * 8);
- uint32_t zero = 0;
- int bytes = 0;
-
- afc_lock(client);
-
- log_debug_msg("afc_close_file: File handle %i\n", file->filehandle);
-
- // Send command
- memcpy(buffer, &file->filehandle, sizeof(uint32_t));
- memcpy(buffer + sizeof(uint32_t), &zero, sizeof(zero));
- client->afc_packet->operation = AFC_FILE_CLOSE;
- client->afc_packet->entire_length = client->afc_packet->this_length = 0;
- bytes = dispatch_AFC_packet(client, buffer, sizeof(char) * 8);
- free(buffer);
- buffer = NULL;
-
- // FIXME: Is this necesary?
- // client->afc_packet->entire_length = client->afc_packet->this_length
- // = 0;
-
- if (bytes <= 0) {
- afc_unlock(client);
- return IPHONE_E_UNKNOWN_ERROR;
- }
- // Receive the response
- bytes = receive_AFC_data(client, &buffer);
- if (buffer)
- free(buffer);
- free(file);
- afc_unlock(client);
- return IPHONE_E_SUCCESS;
-}
-
-/** Seeks to a given position of a pre-opened file on the phone.
- *
- * @param client The client to use to seek to the position.
- * @param file The file to seek to a position on.
- * @param seekpos Where to seek to. If passed a negative value, this will seek
- * from the end of the file.
- *
- * @return IPHONE_E_SUCCESS on success, IPHONE_E_NOT_ENOUGH_DATA on failure.
- */
-iphone_error_t iphone_afc_seek_file(iphone_afc_client_t client, iphone_afc_file_t file, int seekpos)
-{
- char *buffer = (char *) malloc(sizeof(char) * 24);
- uint32_t seekto = 0, bytes = 0, zero = 0;
-
- if (seekpos < 0)
- seekpos = file->size - abs(seekpos);
-
- afc_lock(client);
-
- // Send the command
- seekto = seekpos;
- memcpy(buffer, &file->filehandle, sizeof(uint32_t)); // handle
- memcpy(buffer + 4, &zero, sizeof(uint32_t)); // pad
- memcpy(buffer + 8, &zero, sizeof(uint32_t)); // fromwhere
- memcpy(buffer + 12, &zero, sizeof(uint32_t)); // pad
- memcpy(buffer + 16, &seekto, sizeof(uint32_t)); // offset
- memcpy(buffer + 20, &zero, sizeof(uint32_t)); // pad
- client->afc_packet->operation = AFC_FILE_SEEK;
- client->afc_packet->this_length = client->afc_packet->entire_length = 0;
- bytes = dispatch_AFC_packet(client, buffer, 23);
- free(buffer);
- buffer = NULL;
-
- if (bytes <= 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive response
- bytes = receive_AFC_data(client, &buffer);
- if (buffer)
- free(buffer);
-
- afc_unlock(client);
-
- if (bytes >= 0) {
- return IPHONE_E_SUCCESS;
- } else {
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
-}
-
-/** Sets the size of a file on the phone.
- *
- * @param client The client to use to set the file size.
- * @param file The (pre-opened) file to set the size on.
- * @param newsize The size to set the file to.
- *
- * @return 0 on success, -1 on failure.
- *
- * @note This function is more akin to ftruncate than truncate, and truncate
- * calls would have to open the file before calling this, sadly.
- */
-iphone_error_t iphone_afc_truncate_file(iphone_afc_client_t client, iphone_afc_file_t file, uint32_t newsize)
-{
- char *buffer = (char *) malloc(sizeof(char) * 16);
- uint32_t bytes = 0, zero = 0;
-
- afc_lock(client);
-
- // Send command
- memcpy(buffer, &file->filehandle, sizeof(uint32_t)); // handle
- memcpy(buffer + 4, &zero, sizeof(uint32_t)); // pad
- memcpy(buffer + 8, &newsize, sizeof(uint32_t)); // newsize
- memcpy(buffer + 12, &zero, 3); // pad
- client->afc_packet->operation = AFC_FILE_TRUNCATE;
- client->afc_packet->this_length = client->afc_packet->entire_length = 0;
- bytes = dispatch_AFC_packet(client, buffer, 15);
- free(buffer);
- buffer = NULL;
-
- if (bytes <= 0) {
- afc_unlock(client);
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
- // Receive response
- bytes = receive_AFC_data(client, &buffer);
- if (buffer)
- free(buffer);
-
- afc_unlock(client);
-
- if (bytes >= 0) {
- return IPHONE_E_SUCCESS;
- } else {
- return IPHONE_E_NOT_ENOUGH_DATA;
- }
-}
-
-uint32_t iphone_afc_get_file_handle(iphone_afc_file_t file)
-{
- return file->filehandle;
-}