| Crates.io | iroga |
| lib.rs | iroga |
| version | 0.4.0 |
| created_at | 2024-05-11 13:57:58.242006+00 |
| updated_at | 2025-07-08 19:28:11.535667+00 |
| description | Command line app to pack a single directory into an IRO archive (FF7 mod manager format) |
| homepage | |
| repository | https://github.com/tangtang95/iroga |
| max_upload_size | |
| id | 1236867 |
| size | 59,957 |
Command line application to pack a single directory into an IRO archive. The IRO archive is a format used in 7th heaven, a FF7 mod manager application
# Simple usage
iroga pack <DIR>
# For help information
iroga --help
use iroga::error::Error;
use iroga::iro_archive::IroArchive;
use std::fs::File;
use std::io::BufWriter;
use std::path::Path;
let iro_file = File::open(Path::new("foobar.iro"))?;
let mut iro_archive = IroArchive::open(iro_file);
let iro_header = iro_archive.read_header()?;
let iro_entries = iro_archive.read_iro_entries(&iro_header)?;
for iro_entry in iro_entries {
let mut buf_writer = BufWriter::new(Vec::new());
iro_archive.seek_and_read_file_entry(&iro_entry, &mut buf_writer)?;
}
| Offset | Size | Description |
|---|---|---|
| 0x00 | 20 | IRO Header |
| 0x20 | (20 + L) * N | File indexing section |
| 0x20 + (20 + L) * N | B * N | Data section |
N is the number of files, L is the dynamic length of file paths, B is the dynamic byte length of the files
| Offset | Size | Description |
|---|---|---|
| 0x00 | 4 | IROS constant text in ASCII |
| 0x04 | 4 | Version (latest version: 0x10002) |
| 0x08 | 4 | Flags (0: full IRO, 1: patch) |
| 0x0C | 4 | Size of IRO header (always 16) |
| 0x10 | 4 | Number of files inside the archive |
Section repeated for each file inside the archive
| Offset | Size | Description |
|---|---|---|
| 0x00 | 2 | Length of this section (filepath_length + 20) |
| 0x02 | 2 | Length of the file path |
| 0x04 | L | File path in unicode UTF16 |
| 0x04 + L | 4 | File flags (0: Non-compressed, 1: LZSS-compressed, 2: LZMA-compressed) |
| 0x04 + L + 0x04 | 8 | IRO archive offset pointing to the related file in data section (Size=4 on version 0x10000) |
| 0x04 + L + 0x0C | 4 | Length of the data |
Concatenation of bytes of each file