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35 lines
792 B
Rust
35 lines
792 B
Rust
// SPDX-FileCopyrightText: 2024 Joshua Goins <josh@redstrate.com>
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// SPDX-License-Identifier: GPL-3.0-or-later
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use std::io::Cursor;
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use crate::ByteSpan;
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use binrw::binrw;
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use binrw::BinRead;
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#[binrw]
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#[derive(Debug)]
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#[brw(little)]
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struct SgbHeader {
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#[br(count = 4)]
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#[bw(pad_size_to = 4)]
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#[bw(map = |x : &String | x.as_bytes())]
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#[br(map = | x: Vec<u8> | String::from_utf8(x).unwrap().trim_matches(char::from(0)).to_string())]
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pub identifier: String,
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file_size: i32,
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total_chunk_count: i32,
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}
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#[derive(Debug)]
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pub struct Sgb {}
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impl Sgb {
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/// Reads an existing SGB file
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pub fn from_existing(buffer: ByteSpan) -> Option<Self> {
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let mut cursor = Cursor::new(buffer);
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SgbHeader::read(&mut cursor).ok()?;
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Some(Sgb {})
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}
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}
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