blob: 5d26d980450622ee3ecd11581a7e6c53a38396c0 [file] [log] [blame]
// Copyright 2019 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "testing/utils/file_util.h"
#include <stdio.h>
#include <string.h>
#include "testing/utils/path_service.h"
std::unique_ptr<char, pdfium::FreeDeleter> GetFileContents(const char* filename,
size_t* retlen) {
FILE* file = fopen(filename, "rb");
if (!file) {
fprintf(stderr, "Failed to open: %s\n", filename);
return nullptr;
(void)fseek(file, 0, SEEK_END);
size_t file_length = ftell(file);
if (!file_length) {
return nullptr;
(void)fseek(file, 0, SEEK_SET);
std::unique_ptr<char, pdfium::FreeDeleter> buffer(
if (!buffer) {
return nullptr;
size_t bytes_read = fread(buffer.get(), 1, file_length, file);
if (bytes_read != file_length) {
fprintf(stderr, "Failed to read: %s\n", filename);
return nullptr;
*retlen = bytes_read;
return buffer;
FileAccessForTesting::FileAccessForTesting(const std::string& file_name) {
std::string file_path;
if (!PathService::GetTestFilePath(file_name, &file_path))
file_contents_ = GetFileContents(file_path.c_str(), &file_length_);
if (!file_contents_)
m_FileLen = static_cast<unsigned long>(file_length_);
m_GetBlock = SGetBlock;
m_Param = this;
int FileAccessForTesting::GetBlockImpl(unsigned long pos,
unsigned char* pBuf,
unsigned long size) {
memcpy(pBuf, file_contents_.get() + pos, size);
return size;
// static
int FileAccessForTesting::SGetBlock(void* param,
unsigned long pos,
unsigned char* pBuf,
unsigned long size) {
auto* file_access = static_cast<FileAccessForTesting*>(param);
return file_access->GetBlockImpl(pos, pBuf, size);