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Dylan M. Taylor
ee78a9bd46
PhotoCraft's `photocraft-psd` crate (crates/psd at storytold/photocraft 63b641b55e54bf8f5c83efd977fdb16a2c255431) as `craft-psd`: the lossless PSD/PSB model, reader, writer and builder, descriptors, the Photoshop resource files that share its primitives (.abr, .asl, .aco, .act, .ase, .grd, .pat, .atn, .csh, .shc) and the Photoshop blocks of a layered TIFF. The crate had no dependency on any other PhotoCraft crate. Code is unchanged apart from the crate name, craft-libs' rustfmt width, comments that named other PhotoCraft crates, issue references (now `photocraft#N`), and the corpus tests' directory (`CRAFT_PSD_CORPUS` or `corpus/` at the workspace root). Tests, proptests, fuzz targets and fixtures move with it. Part of #778, #786.
28 lines
1000 B
Rust
28 lines
1000 B
Rust
//! Fuzz the full parser, and exercise writer/decoders on anything that parses.
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#![no_main]
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use libfuzzer_sys::fuzz_target;
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use craft_psd::PsdFile;
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fuzz_target!(|data: &[u8]| {
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let Ok(f) = PsdFile::from_bytes(data) else { return };
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// Anything written must re-parse and be byte stable from then on.
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// (Byte comparison rather than model equality, since NaN != NaN.)
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if let Ok(out) = f.to_bytes() {
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let g = PsdFile::from_bytes(&out).expect("re-parse of written file");
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assert_eq!(g.to_bytes().expect("re-write"), out);
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}
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// Keep decoding bounded: only small images.
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if u64::from(f.header.width) * u64::from(f.header.height) <= 1 << 20 {
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let _ = f.decode_merged();
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let _ = f.composite_rgba8();
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for l in f.iter_layers() {
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if l.record.rect.width() * l.record.rect.height() <= 1 << 20 {
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let _ = l.rgba8();
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let _ = l.user_mask();
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}
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}
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}
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let _ = f.layer_tree();
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});
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