Merge pull request #4389 from sylvestre/fuzzer

Run the date fuzzer in the CI for a few seconds

.github/workflows/CICD.yml

@@ -136,6 +136,51 @@ jobs:
         S=$(cargo fmt -- --check) && printf "%s\n" "$S" || { printf "%s\n" "$S" ; printf "%s\n" "$S" | sed -E -n -e "s/^Diff[[:space:]]+in[[:space:]]+${PWD//\//\\/}\/(.*)[[:space:]]+at[[:space:]]+[^0-9]+([0-9]+).*$/::${fault_type} file=\1,line=\2::${fault_prefix}: \`cargo fmt\`: style violation (file:'\1', line:\2; use \`cargo fmt -- \"\1\"\`)/p" ; fault=true ; }
         if [ -n "${{ steps.vars.outputs.FAIL_ON_FAULT }}" ] && [ -n "$fault" ]; then exit 1 ; fi
 
+  fuzz:
+    name: Run the fuzzers
+    runs-on: ubuntu-latest
+    env:
+      RUN_FOR: 60
+    steps:
+    - uses: actions/checkout@v3
+    - uses: Swatinem/rust-cache@v2
+    - name: Install `rust` toolchain
+      run: |
+        rustup toolchain install nightly --no-self-update --profile minimal
+        rustup default nightly
+    - name: Install `cargo-fuzz`
+      run: cargo install cargo-fuzz
+    - name: Run fuzz_date for XX seconds
+      # TODO: fix the issues
+      continue-on-error: true
+      shell: bash
+      run: |
+        ## Run it
+        cd fuzz
+        cargo +nightly fuzz run fuzz_date -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
+    - name: Run fuzz_parse_glob for XX seconds
+     # TODO: fix the issues
+      continue-on-error: true
+      shell: bash
+      run: |
+        ## Run it
+        cd fuzz
+        cargo +nightly fuzz run fuzz_parse_glob -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
+    - name: Run fuzz_parse_size for XX seconds
+      shell: bash
+      run: |
+        ## Run it
+        cd fuzz
+        cargo +nightly fuzz run fuzz_parse_size -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
+    - name: Run fuzz_parse_time for XX seconds
+      # TODO: fix the issues
+      continue-on-error: true
+      shell: bash
+      run: |
+        ## Run it
+        cd fuzz
+        cargo +nightly fuzz run fuzz_parse_time -- -max_total_time=${{ env.RUN_FOR }} -detect_leaks=0
+
   style_lint:
     name: Style/lint
     runs-on: ${{ matrix.job.os }}

.vscode/cspell.dictionaries/acronyms+names.wordlist.txt

@@ -50,6 +50,7 @@ Gmail
 GNU
 Illumos
 Irix
+libfuzzer
 MS-DOS
 MSDOS
 MacOS

fuzz/.gitignore

@@ -0,0 +1,3 @@
+target
+corpus
+artifacts

fuzz/Cargo.toml

@@ -0,0 +1,45 @@
+[package]
+name = "uucore-fuzz"
+version = "0.0.0"
+publish = false
+edition = "2021"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4"
+
+[dependencies.uucore]
+uucore = { workspace = true }
+
+[dependencies.uu_date]
+uu_date = { workspace = true }
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "fuzz_date"
+path = "fuzz_targets/fuzz_date.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "fuzz_parse_glob"
+path = "fuzz_targets/fuzz_parse_glob.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "fuzz_parse_size"
+path = "fuzz_targets/fuzz_parse_size.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "fuzz_parse_time"
+path = "fuzz_targets/fuzz_parse_time.rs"
+test = false
+doc = false

fuzz/fuzz_targets/fuzz_date.rs

@@ -0,0 +1,14 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+
+use std::ffi::OsString;
+use uu_date::uumain;
+
+fuzz_target!(|data: &[u8]| {
+    let delim: u8 = 0; // Null byte
+    let args = data
+        .split(|b| *b == delim)
+        .filter_map(|e| std::str::from_utf8(e).ok())
+        .map(|e| OsString::from(e));
+    uumain(args);
+});

fuzz/fuzz_targets/fuzz_parse_glob.rs

@@ -0,0 +1,10 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use uucore::parse_glob;
+
+fuzz_target!(|data: &[u8]| {
+    if let Ok(s) = std::str::from_utf8(data) {
+        _ = parse_glob::from_str(s)
+    }
+});

fuzz/fuzz_targets/fuzz_parse_size.rs

@@ -0,0 +1,10 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use uucore::parse_size::parse_size;
+
+fuzz_target!(|data: &[u8]| {
+    if let Ok(s) = std::str::from_utf8(data) {
+        _ = parse_size(s);
+    }
+});

fuzz/fuzz_targets/fuzz_parse_time.rs

@@ -0,0 +1,10 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+use uucore::parse_time;
+
+fuzz_target!(|data: &[u8]| {
+    if let Ok(s) = std::str::from_utf8(data) {
+        _ = parse_time::from_str(s);
+    }
+});