From de864b54bf291dbb09ca6833803e18f56aeaea6e Mon Sep 17 00:00:00 2001
From: Randy <33860634+randy408@users.noreply.github.com>
Date: Mon, 28 Jan 2019 18:23:20 +0200
Subject: [PATCH] [libspng] add structure aware fuzzer (#2117)

---
 projects/libspng/Dockerfile | 1 +
 projects/libspng/build.sh   | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/projects/libspng/Dockerfile b/projects/libspng/Dockerfile
index 55c4c2edb..ee5f14e3f 100644
--- a/projects/libspng/Dockerfile
+++ b/projects/libspng/Dockerfile
@@ -23,6 +23,7 @@ RUN apt-get update && \
     apt-get install -y pkg-config zlib1g-dev
 
 RUN git clone --depth 1 https://gitlab.com/randy408/libspng.git
+RUN git clone --depth 1 https://github.com/google/fuzzer-test-suite
 
 WORKDIR libspng
 COPY build.sh $SRC/
diff --git a/projects/libspng/build.sh b/projects/libspng/build.sh
index 62223bbd0..f08577340 100644
--- a/projects/libspng/build.sh
+++ b/projects/libspng/build.sh
@@ -24,6 +24,13 @@ $CXX $CXXFLAGS -std=c++11 -I. \
     -o $OUT/spng_read_fuzzer \
     -lFuzzingEngine $SRC/libspng/build/libspng.a -lz
 
+$CXX $CXXFLAGS -std=c++11 -I. \
+    $SRC/libspng/tests/spng_read_fuzzer.cc \
+    -o $OUT/spng_read_fuzzer_structure_aware \
+    -include ../fuzzer-test-suite/libpng-1.2.56/png_mutator.h \
+    -D PNG_MUTATOR_DEFINE_LIBFUZZER_CUSTOM_MUTATOR \
+    -lFuzzingEngine $SRC/libspng/build/libspng.a -lz
+
 find $SRC/libspng/tests/images -name "*.png" | \
      xargs zip $OUT/spng_read_fuzzer_seed_corpus.zip