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/*
* The copyright in this software is being made available under the 2-clauses
* BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
* Copyright (c) 2017, IntoPix SA <contact@intopix.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <limits.h>
#include "openjpeg.h"
extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv);
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len);
typedef struct {
const uint8_t* pabyData;
size_t nCurPos;
size_t nLength;
} MemFile;
static void ErrorCallback(const char * msg, void *)
{
(void)msg;
//fprintf(stderr, "%s\n", msg);
}
static void WarningCallback(const char *, void *)
{
}
static void InfoCallback(const char *, void *)
{
}
static OPJ_SIZE_T ReadCallback(void* pBuffer, OPJ_SIZE_T nBytes,
void *pUserData)
{
MemFile* memFile = (MemFile*)pUserData;
//printf("want to read %d bytes at %d\n", (int)memFile->nCurPos, (int)nBytes);
if (memFile->nCurPos >= memFile->nLength) {
return -1;
}
if (memFile->nCurPos + nBytes >= memFile->nLength) {
size_t nToRead = memFile->nLength - memFile->nCurPos;
memcpy(pBuffer, memFile->pabyData + memFile->nCurPos, nToRead);
memFile->nCurPos = memFile->nLength;
return nToRead;
}
if (nBytes == 0) {
return -1;
}
memcpy(pBuffer, memFile->pabyData + memFile->nCurPos, nBytes);
memFile->nCurPos += nBytes;
return nBytes;
}
static OPJ_BOOL SeekCallback(OPJ_OFF_T nBytes, void * pUserData)
{
MemFile* memFile = (MemFile*)pUserData;
//printf("seek to %d\n", (int)nBytes);
memFile->nCurPos = nBytes;
return OPJ_TRUE;
}
static OPJ_OFF_T SkipCallback(OPJ_OFF_T nBytes, void * pUserData)
{
MemFile* memFile = (MemFile*)pUserData;
memFile->nCurPos += nBytes;
return nBytes;
}
int LLVMFuzzerInitialize(int* /*argc*/, char*** argv)
{
return 0;
}
static const unsigned char jpc_header[] = {0xff, 0x4f};
static const unsigned char jp2_box_jp[] = {0x6a, 0x50, 0x20, 0x20}; /* 'jP ' */
int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)
{
OPJ_CODEC_FORMAT eCodecFormat;
if (len >= sizeof(jpc_header) &&
memcmp(buf, jpc_header, sizeof(jpc_header)) == 0) {
eCodecFormat = OPJ_CODEC_J2K;
} else {
return 0;
}
opj_codec_t* pCodec = opj_create_decompress(eCodecFormat);
opj_set_info_handler(pCodec, InfoCallback, NULL);
opj_set_warning_handler(pCodec, WarningCallback, NULL);
opj_set_error_handler(pCodec, ErrorCallback, NULL);
opj_dparameters_t parameters;
opj_set_default_decoder_parameters(¶meters);
opj_setup_decoder(pCodec, ¶meters);
opj_stream_t *pStream = opj_stream_create(1024, OPJ_TRUE);
MemFile memFile;
memFile.pabyData = buf;
memFile.nLength = len;
memFile.nCurPos = 0;
opj_stream_set_user_data_length(pStream, len);
opj_stream_set_read_function(pStream, ReadCallback);
opj_stream_set_seek_function(pStream, SeekCallback);
opj_stream_set_skip_function(pStream, SkipCallback);
opj_stream_set_user_data(pStream, &memFile, NULL);
opj_image_t * psImage = NULL;
if (!opj_read_header(pStream, pCodec, &psImage)) {
opj_destroy_codec(pCodec);
opj_stream_destroy(pStream);
opj_image_destroy(psImage);
return 0;
}
OPJ_UINT32 width = psImage->x1 - psImage->x0;
OPJ_UINT32 height = psImage->y1 - psImage->y0;
#if 0
// Reject too big images since that will require allocating a lot of
// memory
if (width != 0 && psImage->numcomps != 0 &&
(width > INT_MAX / psImage->numcomps ||
height > INT_MAX / (width * psImage->numcomps * sizeof(OPJ_UINT32)))) {
opj_stream_destroy(pStream);
opj_destroy_codec(pCodec);
opj_image_destroy(psImage);
return 0;
}
// Also reject too big tiles.
// TODO: remove this limitation when subtile decoding no longer imply
// allocation memory for whole tile
opj_codestream_info_v2_t* pCodeStreamInfo = opj_get_cstr_info(pCodec);
OPJ_UINT32 nTileW, nTileH;
nTileW = pCodeStreamInfo->tdx;
nTileH = pCodeStreamInfo->tdy;
opj_destroy_cstr_info(&pCodeStreamInfo);
if (nTileW > 2048 || nTileH > 2048) {
opj_stream_destroy(pStream);
opj_destroy_codec(pCodec);
opj_image_destroy(psImage);
return 0;
}
#endif
OPJ_UINT32 width_to_read = width;
if (width_to_read > 1024) {
width_to_read = 1024;
}
OPJ_UINT32 height_to_read = height;
if (height_to_read > 1024) {
height_to_read = 1024;
}
if (opj_set_decode_area(pCodec, psImage,
psImage->x0, psImage->y0,
psImage->x0 + width_to_read,
psImage->y0 + height_to_read)) {
if (opj_decode(pCodec, pStream, psImage)) {
//printf("success\n");
}
}
opj_end_decompress(pCodec, pStream);
opj_stream_destroy(pStream);
opj_destroy_codec(pCodec);
opj_image_destroy(psImage);
return 0;
}
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