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Add missing DeleteFile operation, fix-up wipe buffer handling

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This makes game patching fully functional now!
This commit is contained in:
Joshua Goins 2022-07-20 11:00:21 -04:00
parent 2feddfbe98
commit 115733d0b6
1 changed files with 47 additions and 63 deletions
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110
src/patch.rs
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@ -162,7 +162,8 @@ struct SqpkPatchInfo {
#[derive(PartialEq, Debug)] #[derive(PartialEq, Debug)]
enum SqpkFileOperation { enum SqpkFileOperation {
#[br(magic = b'A')] AddFile, #[br(magic = b'A')] AddFile,
#[br(magic = b'R')] RemoveAll #[br(magic = b'R')] RemoveAll,
#[br(magic = b'D')] DeleteFile
} }
#[derive(BinRead, PartialEq, Debug)] #[derive(BinRead, PartialEq, Debug)]
@ -268,6 +269,43 @@ struct SqpkChunk {
operation : SqpkOperation operation : SqpkOperation
} }
const WIPE_BUFFER: [u8; 1 << 16] = [0; 1 << 16];
fn wipe(mut file : &File, length : i32) {
let mut length = length;
while length > 0 {
let num_bytes = min(WIPE_BUFFER.len() as i32, length);
file.write(&WIPE_BUFFER[0..num_bytes as usize]);
length -= num_bytes;
}
}
fn wipe_from_offset(mut file : &File, length : i32, offset : i32) {
file.seek(SeekFrom::Start(offset as u64));
wipe(file, length);
}
fn write_empty_file_block_at(mut file : &File, offset : i32, block_number : i32) {
wipe_from_offset(file, block_number << 7, offset);
file.seek(SeekFrom::Start(offset as u64));
let block_size : i32 = 1 << 7;
file.write(block_size.to_le_bytes().as_slice());
let unknown : i32 = 0;
file.write(unknown.to_le_bytes().as_slice());
let file_size : i32 = 0;
file.write(file_size.to_le_bytes().as_slice());
let num_blocks : i32 = block_number - 1;
file.write(num_blocks.to_le_bytes().as_slice());
let used_blocks : i32 = 0;
file.write(used_blocks.to_le_bytes().as_slice());
}
pub fn process_patch(data_dir : &str, path : &str) { pub fn process_patch(data_dir : &str, path : &str) {
let mut file = File::open(path).unwrap(); let mut file = File::open(path).unwrap();
@ -291,15 +329,7 @@ pub fn process_patch(data_dir : &str, path : &str) {
new_file.write(&*add.block_data); new_file.write(&*add.block_data);
let wipe_buffer : [u8; 1 << 16] = [0; 1 << 16]; wipe(&mut new_file, add.block_delete_number);
let mut length = add.block_delete_number;
let mut num_bytes = 0;
while length > 0 {
num_bytes = min(wipe_buffer.len() as i32, add.block_delete_number);
new_file.write(&wipe_buffer[0..num_bytes as usize]);
length -= num_bytes;
}
} }
SqpkOperation::DeleteData(delete) => { SqpkOperation::DeleteData(delete) => {
let filename = format!("{}/sqpack/ffxiv/{:02x}{:04x}.win32.dat{}", data_dir, delete.main_id, delete.sub_id, delete.file_id); let filename = format!("{}/sqpack/ffxiv/{:02x}{:04x}.win32.dat{}", data_dir, delete.main_id, delete.sub_id, delete.file_id);
@ -309,32 +339,7 @@ pub fn process_patch(data_dir : &str, path : &str) {
.create(true) .create(true)
.open(filename).unwrap(); .open(filename).unwrap();
new_file.seek(SeekFrom::Start(delete.block_offset as u64)); write_empty_file_block_at(&mut new_file, delete.block_offset, delete.block_number);
let wipe_buffer : [u8; 1 << 16] = [0; 1 << 16];
let mut length = delete.block_number << 7;
let mut num_bytes = 0;
while length > 0 {
num_bytes = min(wipe_buffer.len() as i32, delete.block_number << 7);
new_file.write(&wipe_buffer[0..num_bytes as usize]);
length -= num_bytes;
}
let block_size : i32 = 1 >> 7;
new_file.write(block_size.to_le_bytes().as_slice());
let unknown : i32 = 0;
new_file.write(unknown.to_le_bytes().as_slice());
let file_size : i32 = 0;
new_file.write(file_size.to_le_bytes().as_slice());
let num_blocks : i32 = delete.block_number - 1;
new_file.write(num_blocks.to_le_bytes().as_slice());
let used_blocks : i32 = 0;
new_file.write(used_blocks.to_le_bytes().as_slice());
} }
SqpkOperation::ExpandData(expand) => { SqpkOperation::ExpandData(expand) => {
let filename = format!("{}/sqpack/ffxiv/{:02x}{:04x}.win32.dat{}", data_dir, expand.main_id, expand.sub_id, expand.file_id); let filename = format!("{}/sqpack/ffxiv/{:02x}{:04x}.win32.dat{}", data_dir, expand.main_id, expand.sub_id, expand.file_id);
@ -344,32 +349,7 @@ pub fn process_patch(data_dir : &str, path : &str) {
.create(true) .create(true)
.open(filename).unwrap(); .open(filename).unwrap();
new_file.seek(SeekFrom::Start(expand.block_offset as u64)); write_empty_file_block_at(&mut new_file, expand.block_offset, expand.block_number);
let wipe_buffer : [u8; 1 << 16] = [0; 1 << 16];
let mut length = expand.block_number << 7;
let mut num_bytes = 0;
while length > 0 {
num_bytes = min(wipe_buffer.len() as i32, expand.block_number << 7);
new_file.write(&wipe_buffer[0..num_bytes as usize]);
length -= num_bytes;
}
let block_size : i32 = 1 >> 7;
new_file.write(block_size.to_le_bytes().as_slice());
let unknown : i32 = 0;
new_file.write(unknown.to_le_bytes().as_slice());
let file_size : i32 = 0;
new_file.write(file_size.to_le_bytes().as_slice());
let num_blocks : i32 = expand.block_number - 1;
new_file.write(num_blocks.to_le_bytes().as_slice());
let used_blocks : i32 = 0;
new_file.write(used_blocks.to_le_bytes().as_slice());
} }
SqpkOperation::HeaderUpdate(header) => { SqpkOperation::HeaderUpdate(header) => {
let mut file_path : String; let mut file_path : String;
@ -429,7 +409,11 @@ pub fn process_patch(data_dir : &str, path : &str) {
new_file.write(&mut data); new_file.write(&mut data);
} }
_ => {} SqpkFileOperation::DeleteFile => {
let new_path = data_dir.to_owned() + "/" + &fop.path;
fs::remove_file(new_path.as_str());
}
} }
} }
_ => {} _ => {}