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authorAlexander Mohr <alexander.m.mohr@mercedes-benz.com>2022-06-13 05:46:53 (GMT)
committerAlexander Mohr <alexander.m.mohr@mercedes-benz.com>2022-06-13 05:46:53 (GMT)
commit5065080664437efcb4215823b9ad95f5571a9d7c (patch)
treeb41896ee54e173d9546c29a8b348672bb45015ba /ossfuzz
parentaf447b22c80d25c8d88cc3147c120e027b18d0ae (diff)
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ossfuzz: extend fuzzing test to include linked blocks
fuzzing test now tests linked and independent blocks Signed-off-by: Alexander Mohr <alexander.m.mohr@mercedes-benz.com>
Diffstat (limited to 'ossfuzz')
-rw-r--r--ossfuzz/round_trip_frame_uncompressed_fuzzer.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/ossfuzz/round_trip_frame_uncompressed_fuzzer.c b/ossfuzz/round_trip_frame_uncompressed_fuzzer.c
index 631d149..cf9cbb9 100644
--- a/ossfuzz/round_trip_frame_uncompressed_fuzzer.c
+++ b/ossfuzz/round_trip_frame_uncompressed_fuzzer.c
@@ -15,7 +15,7 @@
#include "lz4frame.h"
#include "lz4frame_static.h"
-static void decompress_data(LZ4F_dctx *dctx, void *src, void *dst,
+static void decompress(LZ4F_dctx *dctx, void *src, void *dst,
size_t dstCapacity, size_t readSize) {
size_t ret = 1;
const void *srcPtr = (const char *)src;
@@ -40,9 +40,8 @@ static void decompress_data(LZ4F_dctx *dctx, void *src, void *dst,
}
}
-int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
- FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(data, size);
- LZ4F_preferences_t const prefs = FUZZ_dataProducer_preferences(producer);
+static void compress_round_trip(const uint8_t* data, size_t size,
+ FUZZ_dataProducer_t *producer, LZ4F_preferences_t const prefs) {
size = FUZZ_dataProducer_remainingBytes(producer);
uint8_t *uncompressedData = malloc(size);
@@ -103,7 +102,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
LZ4F_createDecompressionContext(&dctx, LZ4F_VERSION);
FUZZ_ASSERT(dctx);
- decompress_data(dctx, dst, rt, rtCapacity, compressedSize);
+ decompress(dctx, dst, rt, rtCapacity, compressedSize);
LZ4F_freeDecompressionContext(dctx);
@@ -123,5 +122,25 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
FUZZ_dataProducer_free(producer);
FUZZ_dataProducer_free(uncompressedProducer);
LZ4F_freeCompressionContext(ctx);
+}
+
+static void compress_linked_block_mode(const uint8_t* data, size_t size) {
+ FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(data, size);
+ LZ4F_preferences_t prefs = FUZZ_dataProducer_preferences(producer);
+ prefs.frameInfo.blockMode = LZ4F_blockLinked;
+ compress_round_trip(data, size, producer, prefs);
+}
+
+static void compress_independent_block_mode(const uint8_t* data, size_t size) {
+ FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(data, size);
+ LZ4F_preferences_t prefs = FUZZ_dataProducer_preferences(producer);
+ prefs.frameInfo.blockMode = LZ4F_blockIndependent;
+ compress_round_trip(data, size, producer, prefs);
+}
+
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ compress_linked_block_mode(data, size);
+ compress_independent_block_mode(data, size);
return 0;
}