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package main
import (
"bytes"
"compress/zlib"
"encoding/binary"
"fmt"
"io"
"net"
"os"
"path/filepath"
)
const (
usage = "usage: wiiload_lite file_path ip_address"
WiiloadVersionMajor = 0
WiiloadVersionMinor = 5
FileChunkSize = 1024 * 128
)
func main() {
if len(os.Args) != 3 {
fmt.Fprintln(os.Stderr, usage)
os.Exit(1)
}
filePath := os.Args[1]
ipAddress := os.Args[2]
file, err := os.Open(filePath)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer file.Close()
fileData, err := io.ReadAll(file)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
var buf bytes.Buffer
writer := zlib.NewWriter(&buf)
_, err = writer.Write(fileData)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
err = writer.Close()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
var compressedFileData = buf.Bytes()
fileStat, err := file.Stat()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
fileSize := fileStat.Size()
conn, err := net.Dial("tcp", ipAddress+":4299")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer conn.Close()
conn.Write([]byte("HAXX"))
conn.Write([]byte{WiiloadVersionMajor})
conn.Write([]byte{WiiloadVersionMinor})
binary.Write(conn, binary.BigEndian, uint16(len(filepath.Base(filePath))))
binary.Write(conn, binary.BigEndian, uint32(len(compressedFileData)))
binary.Write(conn, binary.BigEndian, uint32(fileSize))
for i := 0; i < len(compressedFileData); i += FileChunkSize {
end := i + FileChunkSize
if end > len(compressedFileData) {
end = len(compressedFileData)
}
conn.Write(compressedFileData[i:end])
}
conn.Write([]byte(filepath.Base(filePath)))
}
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