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Commitf684d71

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OSS-Fuzz: Add new fuzzer upstream
Signed-off-by: Arthur Chan <arthur.chan@adalogics.com>
1 parent9d5d794 commitf684d71

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2 files changed

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2 files changed

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‎fuzz/Cargo.toml

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@@ -23,5 +23,11 @@ path = "fuzz_targets/streaming.rs"
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test =false
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doc =false
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[[bin]]
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name ="process"
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path ="fuzz_targets/process.rs"
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test =false
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doc =false
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# Work around https://github.com/rust-lang/cargo/issues/8338
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[workspace]

‎fuzz/fuzz_targets/process.rs

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// The fuzzing harness fuzz test some of the the
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// unicode string normalization processing
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#![no_main]
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#[macro_use]
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externcrate libfuzzer_sys;
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externcrate unicode_normalization;
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use unicode_normalization::{
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char::{compose, canonical_combining_class, is_combining_mark, decompose_canonical, decompose_compatible},
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UnicodeNormalization,
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};
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fuzz_target!(|data:&[u8]|{
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letmut data = data;
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let c =ifletSome((char_value, remaining_data)) = data.split_first(){
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match std::char::from_u32(*char_valueasu32){
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Some(ch) =>{
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data = remaining_data;
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ch
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}
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None =>return,
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}
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} else{
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return;
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};
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// Generate second character for fuzzing if data is enough
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let c2 =ifletSome((char_value, remaining_data)) = data.split_first(){
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data = remaining_data;
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std::char::from_u32(*char_valueasu32)
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} else{
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None
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};
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let string_data:String = data.iter().filter_map(|&b| std::char::from_u32(basu32)).collect();
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// Randomly choose a function target
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match data.first().map(|&b| b %10){
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Some(0) =>{
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ifletSome(c2) = c2{
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let _ = compose(c, c2);
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}
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}
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Some(1) =>{
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let _ = canonical_combining_class(c);
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}
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Some(2) =>{
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let _ = is_combining_mark(c);
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}
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Some(3) =>{
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let _ = string_data.nfc().collect::<String>();
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}
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Some(4) =>{
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let _ = string_data.nfkd().collect::<String>();
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}
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Some(5) =>{
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let _ = string_data.nfd().collect::<String>();
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}
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Some(6) =>{
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let _ = string_data.nfkc().collect::<String>();
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}
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Some(7) =>{
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let _ = string_data.stream_safe().collect::<String>();
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}
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Some(8) =>{
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decompose_canonical(c, |_|{});
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}
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Some(9) =>{
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decompose_compatible(c, |_|{});
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}
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_ =>{}
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}
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});

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