From ce2c83321b054a664cc852434db3351510689670 Mon Sep 17 00:00:00 2001
From: David Korczynski <david@adalogics.com>
Date: Thu, 9 May 2024 14:00:41 -0700
Subject: [PATCH 1/2] Add clusterfuzz lite integration

Signed-off-by: David Korczynski <david@adalogics.com>
---
 .clusterfuzzlite/Dockerfile     |  8 ++++++++
 .clusterfuzzlite/build.sh       | 10 ++++++++++
 .clusterfuzzlite/fuzzer.c       | 26 ++++++++++++++++++++++++++
 .clusterfuzzlite/project.yaml   |  1 +
 .github/workflows/cflite_pr.yml | 30 ++++++++++++++++++++++++++++++
 5 files changed, 75 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..4eb044b
--- /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/libjson
+COPY .clusterfuzzlite/build.sh $SRC/build.sh
+COPY .clusterfuzzlite/*.cpp $SRC/
+COPY .clusterfuzzlite/*.c $SRC/
+WORKDIR libjson
diff --git a/.clusterfuzzlite/build.sh b/.clusterfuzzlite/build.sh
new file mode 100644
index 0000000..51c2650
--- /dev/null
+++ b/.clusterfuzzlite/build.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+for file in "jsonlint.c json.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 $SRC/libjson/libfuzz.a -Wl,--allow-multiple-definition -I$SRC/libjson/  -o $OUT/fuzzer
diff --git a/.clusterfuzzlite/fuzzer.c b/.clusterfuzzlite/fuzzer.c
new file mode 100644
index 0000000..0cdb811
--- /dev/null
+++ b/.clusterfuzzlite/fuzzer.c
@@ -0,0 +1,26 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "json.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    FILE *input = fmemopen((void *)data, size, "r");
+    if (!input) {
+        return 0;
+    }
+
+    json_parser parser;
+    json_parser_init(&parser, NULL, NULL, NULL);
+
+    int ret = 0;
+    int lines, col;
+    ret = process_file(&parser, input, &lines, &col);
+
+    json_parser_free(&parser);
+    fclose(input);
+
+    return 0;
+}
+  
diff --git a/.clusterfuzzlite/project.yaml b/.clusterfuzzlite/project.yaml
new file mode 100644
index 0000000..b455aa3
--- /dev/null
+++ b/.clusterfuzzlite/project.yaml
@@ -0,0 +1 @@
+language: c
diff --git a/.github/workflows/cflite_pr.yml b/.github/workflows/cflite_pr.yml
new file mode 100644
index 0000000..a6ddd01
--- /dev/null
+++ b/.github/workflows/cflite_pr.yml
@@ -0,0 +1,30 @@
+name: ClusterFuzzLite PR fuzzing
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: [ master ]
+permissions: read-all
+jobs:
+  PR:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sanitizer: [address]
+    steps:
+    - name: Build Fuzzers (${{ 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 48cec6a01c3dd04aeeba22f2380b59de33d049bb Mon Sep 17 00:00:00 2001
From: David Korczynski <david@adalogics.com>
Date: Thu, 9 May 2024 16:07:21 -0700
Subject: [PATCH 2/2] cleanup

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

diff --git a/.clusterfuzzlite/Dockerfile b/.clusterfuzzlite/Dockerfile
index 4eb044b..ca88327 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/libjson
 COPY .clusterfuzzlite/build.sh $SRC/build.sh
-COPY .clusterfuzzlite/*.cpp $SRC/
 COPY .clusterfuzzlite/*.c $SRC/
 WORKDIR libjson
diff --git a/.clusterfuzzlite/build.sh b/.clusterfuzzlite/build.sh
index 51c2650..1454eb2 100644
--- a/.clusterfuzzlite/build.sh
+++ b/.clusterfuzzlite/build.sh
@@ -3,7 +3,6 @@ for file in "jsonlint.c json.c"; do
   $CC $CFLAGS -c ${file}
 done
 
-rm -f ./test*.o
 llvm-ar rcs libfuzz.a *.o