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Lagom: Make BMP fuzzer look like the other image loader fuzzers

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This commit is contained in:
Nico Weber 2020-11-25 09:51:31 -05:00 • committed by Andreas Kling
parent 4f12efe191
commit ec4c2f971b
3 changed files with 10 additions and 9 deletions
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8
Libraries/LibGfx/BMPLoader.cpp
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@ -186,6 +186,14 @@ RefPtr<Gfx::Bitmap> load_bmp(const StringView& path)
return bitmap; return bitmap;
} }
RefPtr<Gfx::Bitmap> load_bmp_from_memory(const u8* data, size_t length)
{
auto bitmap = load_bmp_impl(data, length);
if (bitmap)
bitmap->set_mmap_name(String::format("Gfx::Bitmap [%dx%d] - Decoded BMP: <memory>", bitmap->width(), bitmap->height()));
return bitmap;
}
static const LogStream& operator<<(const LogStream& out, Endpoint<i32> ep) static const LogStream& operator<<(const LogStream& out, Endpoint<i32> ep)
{ {
return out << "(" << ep.x << ", " << ep.y << ", " << ep.z << ")"; return out << "(" << ep.x << ", " << ep.y << ", " << ep.z << ")";

2
Libraries/LibGfx/BMPLoader.h
View file

@ -26,13 +26,13 @@
#pragma once #pragma once
#include <AK/Vector.h>
#include <LibGfx/Bitmap.h> #include <LibGfx/Bitmap.h>
#include <LibGfx/ImageDecoder.h> #include <LibGfx/ImageDecoder.h>
namespace Gfx { namespace Gfx {
RefPtr<Gfx::Bitmap> load_bmp(const StringView& path); RefPtr<Gfx::Bitmap> load_bmp(const StringView& path);
RefPtr<Gfx::Bitmap> load_bmp_from_memory(const u8*, size_t);
struct BMPLoadingContext; struct BMPLoadingContext;

9
Meta/Lagom/Fuzzers/FuzzBMP.cpp
View file

@ -29,13 +29,6 @@
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
{ {
Gfx::BMPImageDecoderPlugin loader { data, size }; Gfx::load_bmp_from_memory(data, size);
auto bitmap = loader.bitmap();
if (!bitmap)
return 1;
if (bitmap->width() >= 100000 || bitmap->height() >= 100000) {
fprintf(stderr, "Silly bitmap: %dx%d pixels?!\n", bitmap->width(), bitmap->height());
ASSERT_NOT_REACHED();
}
return 0; return 0;
} }