From 3dc130f3049e250b2d5c0b48af1995fda2fad3d4 Mon Sep 17 00:00:00 2001
From: Matt Colyer
Date: Tue, 29 Jul 2008 10:13:37 -0700
Subject: Autotooled the project with very basic versioning support.

---
 src/AFC.c | 381 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 381 insertions(+)
 create mode 100644 src/AFC.c

(limited to 'src/AFC.c')

diff --git a/src/AFC.c b/src/AFC.c
new file mode 100644
index 0000000..f3d538e
--- /dev/null
+++ b/src/AFC.c
@@ -0,0 +1,381 @@
+/*
+ * AFC.c -- contains functions for the built-in AFC client.
+ * Written by FxChiP
+ */
+
+#include "AFC.h"
+
+extern int debug;
+
+AFClient *afc_connect(iPhone *phone, int s_port, int d_port) {
+	if (!phone) return NULL;
+	AFClient *client = (AFClient*)malloc(sizeof(AFClient));
+	client->connection = mux_connect(phone, s_port, d_port);
+	if (!client->connection) { free(client); return NULL; }
+	else {
+		client->afc_packet = (AFCPacket*)malloc(sizeof(AFCPacket));
+		if (client->afc_packet) {
+			client->phone = phone;
+			client->afc_packet->packet_num = 0;
+			client->afc_packet->unknown1 = client->afc_packet->unknown2 = client->afc_packet->unknown3 = client->afc_packet->unknown4 = client->afc_packet->entire_length = client->afc_packet->this_length = 0;
+			client->afc_packet->header1 = 0x36414643;
+			client->afc_packet->header2 = 0x4141504C;
+			client->file_handle = 0;
+			return client;
+		} else {
+			mux_close_connection(client->phone, client->connection);
+			free(client);
+			return NULL;
+		}
+	}
+	
+	return NULL; // should never get to this point
+}
+
+void afc_disconnect(AFClient *client) {
+	// client and its members should never be NULL is assumed here.
+	if (!client || !client->connection || !client->phone || !client->afc_packet) return;
+	mux_close_connection(client->phone, client->connection);
+	free(client->afc_packet);
+	free(client);
+}
+
+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;
+}
+
+int dispatch_AFC_packet(AFClient *client, char *data, int length) {
+	char *buffer;
+	int bytes = 0, offset = 0;
+	if (!client || !client->connection || !client->phone || !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 = client->afc_packet->this_length = (length) ? sizeof(AFCPacket) + length + 1 : sizeof(AFCPacket);
+	if (!client->afc_packet->this_length) client->afc_packet->this_length = sizeof(AFCPacket);
+		
+	if (client->afc_packet->this_length != client->afc_packet->entire_length) {
+		// 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)
+		char *buffer = (char*)malloc(client->afc_packet->this_length);
+		memcpy(buffer, (char*)client->afc_packet, sizeof(AFCPacket));
+		offset = client->afc_packet->this_length - sizeof(AFCPacket);
+		if (debug) printf("dispatch_AFC_packet: Offset: %i\n", offset);
+		if ((length) < (client->afc_packet->entire_length - client->afc_packet->this_length)) {
+			if (debug) printf("dispatch_AFC_packet: Length did not resemble what it was supposed to based on the packet.\nlength minus offset: %i\nrest of packet: %i\n", length-offset, client->afc_packet->entire_length - client->afc_packet->this_length);
+			free(buffer);
+			return 0;
+		}
+		if (debug) printf("dispatch_AFC_packet: fucked-up packet method (probably a write)\n");
+		memcpy(buffer+sizeof(AFCPacket), data, offset);
+		bytes = mux_send(client->phone, client->connection, buffer, client->afc_packet->this_length);
+		free(buffer);
+		if (bytes <= 0) { return 0; }
+		if (debug) {
+			printf("dispatch_AFC_packet: sent the first now go with the second\n");
+			printf("Length: %i\n", length-offset);
+			printf("Buffer: \n");
+			fwrite(data+offset, 1, length-offset, stdout);
+		}
+		
+		
+		bytes = mux_send(client->phone, client->connection, data+offset, length-offset);
+		if (bytes <= 0) { return 0; }
+		else { return bytes; }
+	} else {
+		if (debug) printf("dispatch_AFC_packet doin things the old way\n");
+		char *buffer = (char*)malloc(sizeof(char) * client->afc_packet->this_length);
+		if (debug) printf("dispatch_AFC_packet packet length = %i\n", client->afc_packet->this_length);
+		memcpy(buffer, (char*)client->afc_packet, sizeof(AFCPacket));
+		if (debug) printf("dispatch_AFC_packet packet data follows\n");
+		if (length > 0) { memcpy(buffer+sizeof(AFCPacket), data, length); buffer[sizeof(AFCPacket)+length] = '\0'; }
+		if (debug) fwrite(buffer, 1, client->afc_packet->this_length, stdout);
+		if (debug) printf("\n");
+		bytes = mux_send(client->phone, client->connection, buffer, client->afc_packet->this_length);
+		if (bytes <= 0) return 0;
+		else return bytes;
+	}
+	return 0;
+}
+
+int receive_AFC_data(AFClient *client, char **dump_here) {
+	AFCPacket *r_packet;
+	char *buffer = (char*)malloc(sizeof(AFCPacket) * 4);
+	int bytes = 0, recv_len = 0;
+	
+	bytes = mux_recv(client->phone, client->connection, buffer, sizeof(AFCPacket) * 4);
+	if (bytes <= 0) {
+		free(buffer);
+		printf("Just didn't get enough.\n");
+		*dump_here = NULL;
+		return 0;
+	}
+	
+	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));
+		free(buffer);
+		free(r_packet);
+		return r_packet->entire_length - sizeof(AFCPacket);
+	}
+	
+	uint32 param1 = buffer[sizeof(AFCPacket)];
+	free(buffer);
+
+	if (r_packet->operation == 0x01 && !((client->afc_packet->operation == AFC_DELETE && param1 == 7))) {
+		if (debug) printf("Oops? Bad operation code received.\n");
+		if (param1 == 0) {
+			if (debug) printf("... false alarm, but still\n");
+			return 1;
+		}
+		else { if (debug) printf("Errno %i\n", param1); }
+		free(r_packet);
+		*dump_here = NULL;
+		return 0;
+	} else {
+		if (debug) printf("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) return bytes;
+	buffer = (char*)malloc(sizeof(char) * recv_len);
+	bytes = mux_recv(client->phone, client->connection, buffer, recv_len);
+	if (bytes <= 0) {
+		free(buffer);
+		printf("Didn't get it at the second pass.\n");
+		*dump_here = NULL;
+		return 0;
+	}
+	
+	*dump_here = buffer; // what they do beyond this point = not my problem
+	return bytes;
+}
+
+char **afc_get_dir_list(AFClient *client, char *dir) {
+	client->afc_packet->operation = AFC_LIST_DIR;
+	int bytes = 0;
+	char *blah = NULL, **list = NULL;
+	client->afc_packet->entire_length = client->afc_packet->this_length = 0;
+	bytes = dispatch_AFC_packet(client, dir, strlen(dir));
+	if (!bytes) return NULL;
+	
+	bytes = receive_AFC_data(client, &blah);
+	if (!bytes && !blah) return NULL;
+	
+	list = make_strings_list(blah, bytes);
+	free(blah);
+	return list;
+}
+
+char **make_strings_list(char *tokens, int true_length) {
+	if (!tokens || !true_length) return NULL;
+	int nulls = 0, i = 0, j = 0;
+	char **list = 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] = strdup("");
+	return list;
+}
+
+int afc_delete_file(AFClient *client, const char *path) {
+	if (!client || !path || !client->afc_packet || !client->phone ||!client->connection) return 0;
+
+	char *receive = NULL;
+	client->afc_packet->this_length = client->afc_packet->entire_length = 0;
+	client->afc_packet->operation = AFC_DELETE;
+	int bytes;
+	bytes = dispatch_AFC_packet(client, path, strlen(path));
+	if (bytes <= 0) return 0;
+	
+	bytes = receive_AFC_data(client, &receive);
+	free(receive);
+	if (bytes <= 0) return 0;
+	else return 1;
+}
+
+int afc_rename_file(AFClient *client, const char *from, const char *to) {
+	if (!client || !from || !to || !client->afc_packet || !client->phone || !client->connection) return 0;
+	
+	char *receive = NULL;
+	char *send = (char*)malloc(sizeof(char) * (strlen(from) + strlen(to) + 1 + sizeof(uint32)));
+	int bytes = 0;
+	
+	memcpy(send, from, strlen(from)+1);
+	memcpy(send+strlen(from)+1, to, strlen(to));
+	fwrite(send, 1, strlen(from)+1+strlen(to), stdout);
+	printf("\n");
+	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);
+	if (bytes <= 0) return 0;
+	
+	bytes = receive_AFC_data(client, &receive);
+	free(receive);
+	if (bytes <= 0) return 0;
+	else return 1;
+}
+
+	
+	
+AFCFile *afc_get_file_info(AFClient *client, char *path) {
+	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));
+	
+	char *received, **list;
+	AFCFile *my_file;
+	int length, i = 0;
+	
+	length = receive_AFC_data(client, &received);
+	list = make_strings_list(received, length);
+	free(received);
+	if (list) {
+		my_file = (AFCFile *)malloc(sizeof(AFCFile));
+		for (i = 0; strcmp(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;
+				}
+			}
+		}
+		free_dictionary(list);
+		return my_file;
+	} else {
+		return NULL;
+	}
+}
+
+AFCFile *afc_open_file(AFClient *client, const char *filename, uint32 file_mode) {
+	if (file_mode != AFC_FILE_READ && file_mode != AFC_FILE_WRITE) return NULL;
+	if (!client ||!client->connection || !client->phone ||!client->afc_packet) return NULL;
+	char *further_data = (char*)malloc(sizeof(char) * (8 + strlen(filename) + 1));
+	AFCFile *file_infos = NULL;
+	memcpy(further_data, &file_mode, 4);
+	uint32 ag = 0;
+	memcpy(further_data+4, &ag, 4);
+	memcpy(further_data+8, filename, strlen(filename));
+	further_data[8+strlen(filename)] = '\0';
+	int bytes = 0, length_thing = 0;
+	client->afc_packet->operation = AFC_FILE_OPEN;
+	
+	client->afc_packet->entire_length = client->afc_packet->this_length = 0;
+	bytes = dispatch_AFC_packet(client, further_data, 8+strlen(filename));
+	free(further_data);
+	if (bytes <= 0) {
+		if (debug) printf("didn't read enough\n");
+		return NULL;
+	} else {
+		length_thing = receive_AFC_data(client, &further_data);
+		if (length_thing && further_data) {
+			file_infos = afc_get_file_info(client, filename);
+			memcpy(&file_infos->filehandle, further_data, 4);
+			return file_infos;
+		} else {
+			if (debug) printf("didn't get further data or something\n");
+			return NULL;
+		}
+	}
+	if (debug) printf("what the fuck\n");
+	return NULL;
+}
+
+int afc_read_file(AFClient *client, AFCFile *file, char *data, int length) {
+	if (!client || !client->afc_packet || !client->phone || !client->connection || !file) return -1;
+	AFCFilePacket *packet = (AFCFilePacket*)malloc(sizeof(AFCFilePacket));
+	char *input = NULL;
+	packet->unknown1 = packet->unknown2 = 0;
+	packet->filehandle = file->filehandle;
+	packet->size = length;
+	int bytes = 0;
+	
+	client->afc_packet->operation = AFC_READ;
+	client->afc_packet->entire_length = client->afc_packet->this_length = 0;
+	bytes = dispatch_AFC_packet(client, (char*)packet, sizeof(AFCFilePacket));
+	
+	if (bytes > 0) {
+		bytes = receive_AFC_data(client, &input);
+		if (bytes <= 0) {
+			if (input) free(input);
+			return -1;
+		} else {
+			memcpy(data, input, (bytes > length) ? length : bytes);
+			free(input);
+			return (bytes > length) ? length : bytes;
+		}
+	} else {
+		return -1;
+	}
+	return 0;
+}
+
+int afc_write_file(AFClient *client, AFCFile *file, char *data, int length) {
+	char *acknowledgement = NULL;
+	if (!client ||!client->afc_packet ||!client->phone || !client->connection || !file) return -1;
+	client->afc_packet->this_length = sizeof(AFCPacket) + 8;
+	client->afc_packet->entire_length = client->afc_packet->this_length + length;
+	client->afc_packet->operation = AFC_WRITE;
+	if (debug) printf("afc_write_file: Write length: %i\n", length);
+	uint32 zero = 0, bytes = 0;
+	
+	char *out_buffer = NULL;
+	out_buffer = (char*)malloc(sizeof(char) * client->afc_packet->entire_length - sizeof(AFCPacket));
+	memcpy(out_buffer, (char*)&file->filehandle, sizeof(uint32));
+	memcpy(out_buffer+4, (char*)&zero, sizeof(uint32));
+	memcpy(out_buffer+8, data, length);
+	
+	bytes = dispatch_AFC_packet(client, out_buffer, length + 8);
+	if (!bytes) return -1;
+	
+	zero = bytes;
+	bytes = receive_AFC_data(client, &acknowledgement);
+	if (bytes <= 0) {
+		if (debug) printf("afc_write_file: uh oh?\n");
+	}
+	
+	return zero;
+}
+
+void afc_close_file(AFClient *client, AFCFile *file) {
+	char *buffer = malloc(sizeof(char) * 8);
+	uint32 zero = 0;
+	if (debug) printf("File handle %i\n", file->filehandle);
+	memcpy(buffer, &file->filehandle, sizeof(uint32));
+	memcpy(buffer+sizeof(uint32), &zero, sizeof(zero));
+	client->afc_packet->operation = AFC_FILE_CLOSE;
+	int bytes = 0;
+	client->afc_packet->entire_length = client->afc_packet->this_length = 0;
+	bytes = dispatch_AFC_packet(client, buffer, sizeof(char) * 8);
+
+	free(buffer);
+	client->afc_packet->entire_length = client->afc_packet->this_length = 0;
+	if (!bytes) return;
+	
+	bytes = receive_AFC_data(client, &buffer);
+	return;
+	if (buffer) free(buffer); // we're *SUPPOSED* to get an "error" here. 
+}
+
-- 
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