|
| 1 | +// The fuzzing harness fuzz test some of the the |
| 2 | +// unicode string normalization processing |
| 3 | + |
| 4 | +#![no_main] |
| 5 | + |
| 6 | +#[macro_use] |
| 7 | +externcrate libfuzzer_sys; |
| 8 | +externcrate unicode_normalization; |
| 9 | + |
| 10 | +use unicode_normalization::{ |
| 11 | + char::{compose, canonical_combining_class, is_combining_mark, decompose_canonical, decompose_compatible}, |
| 12 | +UnicodeNormalization, |
| 13 | +}; |
| 14 | + |
| 15 | +fuzz_target!(|data:&[u8]|{ |
| 16 | +letmut data = data; |
| 17 | +let c =ifletSome((char_value, remaining_data)) = data.split_first(){ |
| 18 | +match std::char::from_u32(*char_valueasu32){ |
| 19 | +Some(ch) =>{ |
| 20 | + data = remaining_data; |
| 21 | + ch |
| 22 | +} |
| 23 | +None =>return, |
| 24 | +} |
| 25 | +} else{ |
| 26 | +return; |
| 27 | +}; |
| 28 | + |
| 29 | +// Generate second character for fuzzing if data is enough |
| 30 | +let c2 =ifletSome((char_value, remaining_data)) = data.split_first(){ |
| 31 | + data = remaining_data; |
| 32 | + std::char::from_u32(*char_valueasu32) |
| 33 | +} else{ |
| 34 | +None |
| 35 | +}; |
| 36 | +let string_data:String = data.iter().filter_map(|&b| std::char::from_u32(basu32)).collect(); |
| 37 | + |
| 38 | +// Randomly choose a function target |
| 39 | +match data.first().map(|&b| b %10){ |
| 40 | +Some(0) =>{ |
| 41 | +ifletSome(c2) = c2{ |
| 42 | +let _ = compose(c, c2); |
| 43 | +} |
| 44 | +} |
| 45 | +Some(1) =>{ |
| 46 | +let _ = canonical_combining_class(c); |
| 47 | +} |
| 48 | +Some(2) =>{ |
| 49 | +let _ = is_combining_mark(c); |
| 50 | +} |
| 51 | +Some(3) =>{ |
| 52 | +let _ = string_data.nfc().collect::<String>(); |
| 53 | +} |
| 54 | +Some(4) =>{ |
| 55 | +let _ = string_data.nfkd().collect::<String>(); |
| 56 | +} |
| 57 | +Some(5) =>{ |
| 58 | +let _ = string_data.nfd().collect::<String>(); |
| 59 | +} |
| 60 | +Some(6) =>{ |
| 61 | +let _ = string_data.nfkc().collect::<String>(); |
| 62 | +} |
| 63 | +Some(7) =>{ |
| 64 | +let _ = string_data.stream_safe().collect::<String>(); |
| 65 | +} |
| 66 | +Some(8) =>{ |
| 67 | + decompose_canonical(c, |_|{}); |
| 68 | +} |
| 69 | +Some(9) =>{ |
| 70 | + decompose_compatible(c, |_|{}); |
| 71 | +} |
| 72 | + _ =>{} |
| 73 | +} |
| 74 | +}); |