From 3b8fc10cf25f8cdeb1a26e6410e0d14657b754d6 Mon Sep 17 00:00:00 2001
From: David Korczynski <david@adalogics.com>
Date: Thu, 9 May 2024 14:25:52 -0700
Subject: [PATCH 1/2] Add clusterfuzzlite workflow

Signed-off-by: David Korczynski <david@adalogics.com>
---
 .clusterfuzzlite/Dockerfile     |  8 ++++++++
 .clusterfuzzlite/build.sh       |  9 +++++++++
 .clusterfuzzlite/fuzzer.c       | 30 ++++++++++++++++++++++++++++++
 .clusterfuzzlite/project.yaml   |  1 +
 .github/workflows/cflite_pr.yml | 30 ++++++++++++++++++++++++++++++
 5 files changed, 78 insertions(+)
 create mode 100644 .clusterfuzzlite/Dockerfile
 create mode 100644 .clusterfuzzlite/build.sh
 create mode 100644 .clusterfuzzlite/fuzzer.c
 create mode 100644 .clusterfuzzlite/project.yaml
 create mode 100644 .github/workflows/cflite_pr.yml

diff --git a/.clusterfuzzlite/Dockerfile b/.clusterfuzzlite/Dockerfile
new file mode 100644
index 0000000..21af963
--- /dev/null
+++ b/.clusterfuzzlite/Dockerfile
@@ -0,0 +1,8 @@
+FROM gcr.io/oss-fuzz-base/base-builder
+RUN apt-get update && apt-get install -y make autoconf automake libtool cmake \
+                      pkg-config curl check
+COPY . $SRC/tinyexpr
+COPY .clusterfuzzlite/build.sh $SRC/build.sh
+COPY .clusterfuzzlite/*.cpp $SRC/
+COPY .clusterfuzzlite/*.c $SRC/
+WORKDIR tinyexpr
diff --git a/.clusterfuzzlite/build.sh b/.clusterfuzzlite/build.sh
new file mode 100644
index 0000000..4f623f2
--- /dev/null
+++ b/.clusterfuzzlite/build.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+find . -name "*.c" -exec $CC $CFLAGS -I./src -c {} \;
+find . -name "*.o" -exec cp {} . \;
+
+rm -f ./test*.o
+llvm-ar rcs libfuzz.a *.o
+
+
+$CC $CFLAGS $LIB_FUZZING_ENGINE $SRC/fuzzer.c -Wl,--whole-archive $SRC/tinyexpr/libfuzz.a -Wl,--allow-multiple-definition -I$SRC/tinyexpr/  -o $OUT/fuzzer
diff --git a/.clusterfuzzlite/fuzzer.c b/.clusterfuzzlite/fuzzer.c
new file mode 100644
index 0000000..a905116
--- /dev/null
+++ b/.clusterfuzzlite/fuzzer.c
@@ -0,0 +1,30 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "minctest.h"
+#include "tinyexpr.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    if (size == 0) {
+        return 0;
+    }
+
+    char *input = (char*)malloc(size + 1);
+    if (!input) {
+        return 0;
+    }
+
+    memcpy(input, data, size);
+    input[size] = '\0';
+
+    te_variable vars[] = {{ "x", 0 }};
+    int error;
+    te_expr *result = te_compile(input, vars, 1, &error);
+
+    free(input);
+    te_free(result);
+
+    return 0;
+}
diff --git a/.clusterfuzzlite/project.yaml b/.clusterfuzzlite/project.yaml
new file mode 100644
index 0000000..b455aa3
--- /dev/null
+++ b/.clusterfuzzlite/project.yaml
@@ -0,0 +1 @@
+language: c
diff --git a/.github/workflows/cflite_pr.yml b/.github/workflows/cflite_pr.yml
new file mode 100644
index 0000000..a6ddd01
--- /dev/null
+++ b/.github/workflows/cflite_pr.yml
@@ -0,0 +1,30 @@
+name: ClusterFuzzLite PR fuzzing
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: [ master ]
+permissions: read-all
+jobs:
+  PR:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sanitizer: [address]
+    steps:
+    - name: Build Fuzzers (${{ matrix.sanitizer }})
+      id: build
+      uses: google/clusterfuzzlite/actions/build_fuzzers@v1
+      with:
+        sanitizer: ${{ matrix.sanitizer }}
+        language: c++
+        bad-build-check: false
+    - name: Run Fuzzers (${{ matrix.sanitizer }})
+      id: run
+      uses: google/clusterfuzzlite/actions/run_fuzzers@v1
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+        fuzz-seconds: 100
+        mode: 'code-change'
+        report-unreproducible-crashes: false
+        sanitizer: ${{ matrix.sanitizer }}

From be9e48f75bbd2d1e915b133c6eee3f8e47956397 Mon Sep 17 00:00:00 2001
From: David Korczynski <david@adalogics.com>
Date: Thu, 9 May 2024 16:10:06 -0700
Subject: [PATCH 2/2] cleanup

Signed-off-by: David Korczynski <david@adalogics.com>
---
 .clusterfuzzlite/Dockerfile |  1 -
 .clusterfuzzlite/build.sh   | 10 ++++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/.clusterfuzzlite/Dockerfile b/.clusterfuzzlite/Dockerfile
index 21af963..bd59bf2 100644
--- a/.clusterfuzzlite/Dockerfile
+++ b/.clusterfuzzlite/Dockerfile
@@ -3,6 +3,5 @@ RUN apt-get update && apt-get install -y make autoconf automake libtool cmake \
                       pkg-config curl check
 COPY . $SRC/tinyexpr
 COPY .clusterfuzzlite/build.sh $SRC/build.sh
-COPY .clusterfuzzlite/*.cpp $SRC/
 COPY .clusterfuzzlite/*.c $SRC/
 WORKDIR tinyexpr
diff --git a/.clusterfuzzlite/build.sh b/.clusterfuzzlite/build.sh
index 4f623f2..ff3d04d 100644
--- a/.clusterfuzzlite/build.sh
+++ b/.clusterfuzzlite/build.sh
@@ -1,9 +1,11 @@
 #!/bin/bash
-find . -name "*.c" -exec $CC $CFLAGS -I./src -c {} \;
-find . -name "*.o" -exec cp {} . \;
+for file in "smoke.c tinyexpr.c repl.c benchmark.c"; do
+  $CC $CFLAGS -c ${file}
+done
 
-rm -f ./test*.o
 llvm-ar rcs libfuzz.a *.o
 
 
-$CC $CFLAGS $LIB_FUZZING_ENGINE $SRC/fuzzer.c -Wl,--whole-archive $SRC/tinyexpr/libfuzz.a -Wl,--allow-multiple-definition -I$SRC/tinyexpr/  -o $OUT/fuzzer
+$CC $CFLAGS $LIB_FUZZING_ENGINE $SRC/fuzzer.c \
+  -Wl,--whole-archive $SRC/tinyexpr/libfuzz.a -Wl,--allow-multiple-definition \
+  -I$SRC/tinyexpr/  -o $OUT/fuzzer