From c46facdcd11feba6dad28859b2797fb718506940 Mon Sep 17 00:00:00 2001
From: initializedd <119122691+initializedd@users.noreply.github.com>
Date: Sat, 21 Dec 2024 01:47:26 +0000
Subject: [PATCH] feat: Integrate initial OSS-Fuzz support (#5850)

---
 fuzz/Cargo.lock                   | 285 ++++++++++++++++++++++++++++++
 fuzz/Cargo.toml                   |  23 +++
 fuzz/fuzz_targets/parse_fuzzer.rs |  27 +++
 3 files changed, 335 insertions(+)
 create mode 100644 fuzz/Cargo.lock
 create mode 100644 fuzz/Cargo.toml
 create mode 100644 fuzz/fuzz_targets/parse_fuzzer.rs

diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
new file mode 100644
index 00000000000..b2c44ccc6c5
--- /dev/null
+++ b/fuzz/Cargo.lock
@@ -0,0 +1,285 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anstream"
+version = "0.6.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
+dependencies = [
+ "anstyle",
+ "windows-sys",
+]
+
+[[package]]
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+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31a0499c1dc64f458ad13872de75c0eb7e3fdb0e67964610c914b034fc5956e"
+dependencies = [
+ "jobserver",
+ "libc",
+ "shlex",
+]
+
+[[package]]
+name = "clap"
+version = "4.5.23"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.23"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.18"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
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+version = "0.7.4"
+
+[[package]]
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+checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
+
+[[package]]
+name = "fuzz"
+version = "0.0.0"
+dependencies = [
+ "clap",
+ "fuzzed-data-provider-rs",
+ "libfuzzer-sys",
+]
+
+[[package]]
+name = "fuzzed-data-provider-rs"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba4353b854170ca2bcecbe5ba8ecec8d25930f70a791a27ac4861805fb499ab5"
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+
+[[package]]
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+
+[[package]]
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+dependencies = [
+ "libc",
+]
+
+[[package]]
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+checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
+
+[[package]]
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+version = "0.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b9569d2f74e257076d8c6bfa73fb505b46b851e51ddaecc825944aa3bed17fa"
+dependencies = [
+ "arbitrary",
+ "cc",
+]
+
+[[package]]
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+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
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+dependencies = [
+ "proc-macro2",
+]
+
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+
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+dependencies = [
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+ "quote",
+ "unicode-ident",
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+dependencies = [
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+]
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+[[package]]
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+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
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+[[package]]
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+
+[[package]]
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diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
new file mode 100644
index 00000000000..15d709a84b5
--- /dev/null
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,23 @@
+[package]
+name = "fuzz"
+version = "0.0.0"
+edition = "2021"
+publish = false
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4.8"
+fuzzed-data-provider-rs = "0.1.1"
+clap = { path = "../", version = "4.5.20", features = ["derive"] }
+
+# Prevent this from interfering with workspaces
+[workspace]
+
+[[bin]]
+name = "parse_fuzzer"
+path = "fuzz_targets/parse_fuzzer.rs"
+test = false
+doc = false
+
diff --git a/fuzz/fuzz_targets/parse_fuzzer.rs b/fuzz/fuzz_targets/parse_fuzzer.rs
new file mode 100644
index 00000000000..d98375cffff
--- /dev/null
+++ b/fuzz/fuzz_targets/parse_fuzzer.rs
@@ -0,0 +1,27 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use fuzzed_data_provider_rs::FuzzedDataProvider;
+use clap::Parser;
+
+#[derive(Parser)]
+struct Args {
+    #[arg(short, long)]
+    test: String,
+
+    #[arg(short, long)]
+    param: String,
+
+    #[arg(short, long)]
+    name: String,
+}
+
+fuzz_target!(|data: &[u8]| {
+    let mut fdp = FuzzedDataProvider::new(data);
+    let _ = Args::try_parse_from(vec![
+        fdp.consume_random_length_string(fdp.remaining_bytes()),
+        fdp.consume_random_length_string(fdp.remaining_bytes()),
+        fdp.consume_random_length_string(fdp.remaining_bytes()),
+    ]);
+});
+