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-rw-r--r--src/AFC.c180
1 files changed, 148 insertions, 32 deletions
diff --git a/src/AFC.c b/src/AFC.c
index 6fb5a9e..6a0df50 100644
--- a/src/AFC.c
+++ b/src/AFC.c
@@ -29,13 +29,15 @@ extern int debug;
/* Locking, for thread-safety (well... kind of, hehe) */
void afc_lock(AFClient *client) {
+ if (debug) printf("In the midst of a lock...\n");
while (client->lock) {
- sleep(200);
+ usleep(500); // they say it's obsolete, but whatever
}
client->lock = 1;
}
void afc_unlock(AFClient *client) { // just to be pretty
+ if (debug) printf("Unlock!\n");
client->lock = 0;
}
@@ -102,13 +104,13 @@ int dispatch_AFC_packet(AFClient *client, const char *data, int length) {
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;
+ return -1;
}
if (debug) printf("dispatch_AFC_packet: fucked-up packet method (probably a write)\n");
memcpy(buffer+sizeof(AFCPacket), data, offset);
bytes = mux_send(client->connection, buffer, client->afc_packet->this_length);
free(buffer);
- if (bytes <= 0) { return 0; }
+ if (bytes <= 0) { return bytes; }
if (debug) {
printf("dispatch_AFC_packet: sent the first now go with the second\n");
printf("Length: %i\n", length-offset);
@@ -118,8 +120,7 @@ int dispatch_AFC_packet(AFClient *client, const char *data, int length) {
bytes = mux_send(client->connection, data+offset, length-offset);
- if (bytes <= 0) { return 0; }
- else { return bytes; }
+ 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);
@@ -130,10 +131,9 @@ int dispatch_AFC_packet(AFClient *client, const char *data, int length) {
if (debug) fwrite(buffer, 1, client->afc_packet->this_length, stdout);
if (debug) printf("\n");
bytes = mux_send(client->connection, buffer, client->afc_packet->this_length);
- if (bytes <= 0) return 0;
- else return bytes;
+ return bytes;
}
- return 0;
+ return -1;
}
int receive_AFC_data(AFClient *client, char **dump_here) {
@@ -148,7 +148,7 @@ int receive_AFC_data(AFClient *client, char **dump_here) {
free(buffer);
printf("Just didn't get enough.\n");
*dump_here = NULL;
- return 0;
+ return -1;
}
r_packet = (AFCPacket*)malloc(sizeof(AFCPacket));
@@ -177,19 +177,19 @@ int receive_AFC_data(AFClient *client, char **dump_here) {
if(param1 == 0) {
if (debug) printf("... false alarm, but still\n");
*dump_here = NULL;
- return 1;
+ return 0;
}
else { if (debug) printf("Errno %i\n", param1); }
free(r_packet);
*dump_here = NULL;
- return 0;
+ return -1;
} 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)
+ if (!recv_len && r_packet->operation == AFC_SUCCESS_RESPONSE)
{
*dump_here = NULL;
return 0;
@@ -240,10 +240,28 @@ char **afc_get_dir_list(AFClient *client, const char *dir) {
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) { afc_unlock(client); return NULL; }
+ if (bytes <= 0) { afc_unlock(client); return NULL; }
+
+ bytes = receive_AFC_data(client, &blah);
+ if (bytes < 0 && !blah) { afc_unlock(client); return NULL; }
+
+ list = make_strings_list(blah, bytes);
+ free(blah);
+ afc_unlock(client);
+ return list;
+}
+
+char **afc_get_devinfo(AFClient *client) {
+ afc_lock(client);
+ client->afc_packet->operation = AFC_GET_DEVINFO;
+ int bytes = 0;
+ char *blah = NULL, **list = NULL;
+ 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 NULL; }
bytes = receive_AFC_data(client, &blah);
- if (!bytes && !blah) { afc_unlock(client); return NULL; }
+ if (bytes < 0 && !blah) { afc_unlock(client); return NULL; }
list = make_strings_list(blah, bytes);
free(blah);
@@ -251,6 +269,7 @@ char **afc_get_dir_list(AFClient *client, const char *dir) {
return list;
}
+
char **make_strings_list(char *tokens, int true_length) {
if (!tokens || !true_length) return NULL;
int nulls = 0, i = 0, j = 0;
@@ -279,7 +298,7 @@ int afc_delete_file(AFClient *client, const char *path) {
bytes = receive_AFC_data(client, &receive);
free(receive);
afc_unlock(client);
- if (bytes <= 0) { return 0; }
+ if (bytes < 0) { return 0; }
else return 1;
}
@@ -302,12 +321,28 @@ int afc_rename_file(AFClient *client, const char *from, const char *to) {
bytes = receive_AFC_data(client, &receive);
free(receive);
afc_unlock(client);
- if (bytes <= 0) return 0;
+ if (bytes < 0) return 0;
else return 1;
}
+int afc_mkdir(AFClient *client, const char *dir) {
+ if (!client) return 0;
+ afc_lock(client);
+ int bytes = 0;
+ char *recvd = NULL;
+ 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 0; }
+ bytes = receive_AFC_data(client, &recvd);
+ afc_unlock(client);
+ if (recvd) { free(recvd); recvd = NULL; }
+ if (bytes == 0) return 1;
+ else return 0;
+}
+
AFCFile *afc_get_file_info(AFClient *client, const char *path) {
client->afc_packet->operation = AFC_GET_INFO;
client->afc_packet->entire_length = client->afc_packet->this_length = 0;
@@ -350,7 +385,7 @@ AFCFile *afc_get_file_info(AFClient *client, const char *path) {
}
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 (file_mode != AFC_FILE_READ && file_mode != AFC_FILE_WRITE) return NULL;
if (!client ||!client->connection || !client->afc_packet) return NULL;
afc_lock(client);
char *further_data = (char*)malloc(sizeof(char) * (8 + strlen(filename) + 1));
@@ -372,17 +407,19 @@ AFCFile *afc_open_file(AFClient *client, const char *filename, uint32 file_mode)
return NULL;
} else {
length_thing = receive_AFC_data(client, &further_data);
- if (length_thing && further_data) {
+ if (length_thing > 0 && further_data) {
afc_unlock(client); // don't want to hang on the next call... and besides, it'll re-lock, do its thing, and unlock again anyway.
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");
+ afc_unlock(client);
return NULL;
}
}
if (debug) printf("what the fuck\n");
+ afc_unlock(client);
return NULL;
}
@@ -408,7 +445,8 @@ int afc_read_file(AFClient *client, AFCFile *file, char *data, int length) {
// Looping here to get around the maximum amount of data that recieve_AFC_data can handle
while (current_count < length){
-
+ if (debug) printf("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;
@@ -421,6 +459,7 @@ int afc_read_file(AFClient *client, AFCFile *file, char *data, int length) {
// If we get a positive reponse to the command gather the data
if (bytes > 0) {
bytes = receive_AFC_data(client, &input);
+ if (debug) printf("afc_read_file: bytes returned: %i\n", bytes);
if (bytes < 0) {
if (input) free(input);
afc_unlock(client);
@@ -431,7 +470,7 @@ int afc_read_file(AFClient *client, AFCFile *file, char *data, int length) {
return current_count;
} else {
if (input) {
- printf("afc_read_file: %d\n", bytes);
+ if (debug) printf("afc_read_file: %d\n", bytes);
memcpy(data+current_count, input, (bytes > length) ? length : bytes);
free(input);
input = NULL;
@@ -444,6 +483,7 @@ int afc_read_file(AFClient *client, AFCFile *file, char *data, int length) {
}
}
afc_unlock(client);
+ if (debug) printf("afc_read_file: returning current_count as %i\n", current_count);
return current_count;
}
@@ -451,29 +491,53 @@ int afc_write_file(AFClient *client, AFCFile *file, const char *data, int length
char *acknowledgement = NULL;
if (!client ||!client->afc_packet || !client->connection || !file) return -1;
afc_lock(client);
- 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;
-
+ const int MAXIMUM_WRITE_SIZE = 1 << 16;
+ uint32 zero = 0, bytes = 0, segments = (length / MAXIMUM_WRITE_SIZE), current_count = 0, i = 0;
char *out_buffer = NULL;
+
+ for (i = 0; i < segments; i++) { // Essentially, yeah, divide it into segments.
+ client->afc_packet->this_length = sizeof(AFCPacket) + 8;
+ //client->afc_packet->entire_length = client->afc_packet->this_length + length;
+ 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));
+ memcpy(out_buffer+4, (char*)&zero, sizeof(uint32));
+ memcpy(out_buffer+8, data+current_count, MAXIMUM_WRITE_SIZE);
+
+ bytes = dispatch_AFC_packet(client, out_buffer, MAXIMUM_WRITE_SIZE + 8);
+ if (bytes < 0) { afc_unlock(client); return bytes; }
+ free(out_buffer); out_buffer = NULL; // cleanup and hope it works
+ current_count += bytes;
+ bytes = receive_AFC_data(client, &acknowledgement);
+ if (bytes < 0) { afc_unlock(client); return current_count; }
+ }
+
+ // 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); return current_count; }
+ client->afc_packet->this_length = sizeof(AFCPacket) + 8;
+ client->afc_packet->entire_length = client->afc_packet->this_length + (length - current_count);
+ // operation is already AFC_WRITE, but set again to be sure
+ 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));
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;
+ memcpy(out_buffer+8, data+current_count, (length - current_count));
+ bytes = dispatch_AFC_packet(client, out_buffer, (length - current_count) + 8);
+ free(out_buffer); out_buffer = NULL;
+ current_count += bytes;
+ if (bytes <= 0) { afc_unlock(client); return current_count; }
zero = bytes;
bytes = receive_AFC_data(client, &acknowledgement);
afc_unlock(client);
- if (bytes <= 0) {
+ if (bytes < 0) {
if (debug) printf("afc_write_file: uh oh?\n");
}
- return zero;
+ return current_count;
}
void afc_close_file(AFClient *client, AFCFile *file) {
@@ -490,9 +554,61 @@ void afc_close_file(AFClient *client, AFCFile *file) {
free(buffer);
client->afc_packet->entire_length = client->afc_packet->this_length = 0;
- if (!bytes) return;
+ if (bytes <= 0) { afc_unlock(client); return; }
bytes = receive_AFC_data(client, &buffer);
afc_unlock(client);
+ if (buffer) { free(buffer); }
return;
}
+
+int afc_seek_file(AFClient *client, AFCFile *file, int seekpos) {
+ afc_lock(client);
+
+ char *buffer = (char*)malloc(sizeof(char) * 24);
+ uint32 seekto = 0, bytes = 0, zero = 0;
+ if (seekpos < 0) seekpos = file->size - abs(seekpos);
+ seekto = seekpos;
+
+ memcpy(buffer, &file->filehandle, sizeof(uint32)); // handle
+ memcpy(buffer+4, &zero, sizeof(uint32)); // pad
+ memcpy(buffer+8, &zero, sizeof(uint32)); // fromwhere
+ memcpy(buffer+12, &zero, sizeof(uint32)); // pad
+ memcpy(buffer+16, &seekto, sizeof(uint32)); // offset
+ memcpy(buffer+20, &zero, sizeof(uint32)); // 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 -1; }
+
+ bytes = receive_AFC_data(client, &buffer);
+ if (buffer) free(buffer);
+ afc_unlock(client);
+ if (bytes >= 0) return 0;
+ else return -1;
+}
+
+int afc_truncate_file(AFClient *client, AFCFile *file, uint32 newsize) {
+ afc_lock(client);
+
+ char *buffer = (char*)malloc(sizeof(char) * 16);
+ uint32 bytes = 0, zero = 0;
+
+ memcpy(buffer, &file->filehandle, sizeof(uint32)); // handle
+ memcpy(buffer+4, &zero, sizeof(uint32)); // pad
+ memcpy(buffer+8, &newsize, sizeof(uint32)); // 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 -1; }
+
+ bytes = receive_AFC_data(client, &buffer);
+ if (buffer) free(buffer);
+ afc_unlock(client);
+ if (bytes >= 0) return 0;
+ else return -1;
+}
+
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