mirror of
https://github.com/lief-project/LIEF
synced 2026-06-08 15:30:44 +00:00
Romain Thomas
81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
/* Copyright 2017 - 2026 R. Thomas
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* Copyright 2017 - 2026 Quarkslab
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LIEF_FILE_STREAM_H
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#define LIEF_FILE_STREAM_H
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#include <vector>
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#include <string>
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#include <fstream>
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#include "LIEF/errors.hpp"
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#include "LIEF/BinaryStream/BinaryStream.hpp"
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#include "LIEF/visibility.h"
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namespace LIEF {
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/// Stream interface over a `std::ifstream`
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class LIEF_API FileStream : public BinaryStream {
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public:
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static result<FileStream> from_file(const std::string& file);
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FileStream(std::ifstream fs, uint64_t size) :
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BinaryStream(STREAM_TYPE::FILE),
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ifs_(std::move(fs)),
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size_(size)
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{}
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FileStream() = delete;
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FileStream(const FileStream&) = delete;
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FileStream& operator=(const FileStream&) = delete;
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FileStream(FileStream&& other) noexcept = default;
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FileStream& operator=(FileStream&& other) noexcept = default;
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uint64_t size() const override {
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return size_;
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}
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std::vector<uint8_t> content() const;
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~FileStream() override = default;
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static bool classof(const BinaryStream& stream) {
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return stream.type() == STREAM_TYPE::FILE;
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}
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ok_error_t peek_in(void* dst, uint64_t offset, uint64_t size,
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uint64_t /* virtual_address */= 0) const override {
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if (offset > size_ || offset + size > size_) {
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return make_error_code(lief_errors::read_error);
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}
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const auto pos = ifs_.tellg();
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ifs_.seekg(offset);
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ifs_.read(static_cast<char*>(dst), size);
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ifs_.seekg(pos);
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return ok();
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}
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result<const void*> read_at(uint64_t, uint64_t, uint64_t) const override {
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return make_error_code(lief_errors::not_supported);
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}
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protected:
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mutable std::ifstream ifs_;
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uint64_t size_ = 0;
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};
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}
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#endif
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