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dcc-fuzz

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Chris Allen 2025-12-27 17:01:51 -06:00
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README-NIX.md
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@ -74,12 +74,13 @@ ninja -C Build-fuzz
## Fuzzing
The project includes four fuzz targets built with [libFuzzer](https://llvm.org/docs/LibFuzzer.html):
The project includes five fuzz targets built with [libFuzzer](https://llvm.org/docs/LibFuzzer.html):
| Fuzzer | Tests |
|--------|-------|
| `irssi-fuzz` | Text formatting (`printtext_string()`) |
| `server-fuzz` | IRC protocol message parsing |
| `dcc-fuzz` | DCC protocol message parsing (SEND, CHAT, RESUME, ACCEPT) |
| `event-get-params-fuzz` | IRC event parameter parsing |
| `theme-load-fuzz` | Theme file loading |
@ -118,9 +119,10 @@ Initial seed inputs are provided in `fuzz-corpora/`:
```bash
# Copy seeds to corpus directories
mkdir -p corpus/irssi-fuzz corpus/server-fuzz corpus/event-get-params-fuzz corpus/theme-load-fuzz
mkdir -p corpus/irssi-fuzz corpus/server-fuzz corpus/dcc-fuzz corpus/event-get-params-fuzz corpus/theme-load-fuzz
cp fuzz-corpora/irssi-fuzz/* corpus/irssi-fuzz/
cp fuzz-corpora/server-fuzz/* corpus/server-fuzz/
cp fuzz-corpora/dcc-fuzz/* corpus/dcc-fuzz/
cp fuzz-corpora/event-get-params-fuzz/* corpus/event-get-params-fuzz/
cp fuzz-corpora/theme-load-fuzz/* corpus/theme-load-fuzz/
```
@ -141,6 +143,7 @@ ASAN_OPTIONS=symbolize=1 ./result/bin/server-fuzz crash-<hash>
- **irssi-fuzz**: Arbitrary text, may contain irssi format codes (`%B`, `%U`, etc.)
- **server-fuzz**: Byte 0 selects prefix mode, remaining bytes are `\r\n`-separated IRC messages
- **dcc-fuzz**: Byte 0 selects DCC type (0=SEND, 1=CHAT, 2=RESUME, 3=ACCEPT, 4=GET cmd, 5=CLOSE cmd, 6=raw), remaining bytes are DCC message content
- **event-get-params-fuzz**: Byte 0 selects parsing mode (0-7), remaining bytes are parameters
- **theme-load-fuzz**: irssi theme file format