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/* Copyright 2017 R. Thomas
* Copyright 2017 Quarkslab
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "LIEF/DEX/Header.hpp"
#include "LIEF/DEX/hash.hpp"
#include "LIEF/utils.hpp"
#include <numeric>
#include <sstream>
#include <iomanip>
#define PRINT_FIELD(name,attr) \
os << std::setw(WIDTH) << std::setfill(' ') << name << std::hex << attr << std::endl
#define PRINT_LOCATION(name,attr) \
os << std::setw(WIDTH) << std::setfill(' ') << name << std::hex << attr.first \
<< std::dec << " (#" << attr.second << ")" << std::endl
namespace LIEF {
namespace DEX {
Header::Header(const Header&) = default;
Header& Header::operator=(const Header&) = default;
Header::Header(void) {
}
magic_t Header::magic(void) const {
return this->magic_;
}
uint32_t Header::checksum(void) const {
return this->checksum_;
}
signature_t Header::signature(void) const {
return this->signature_;
}
uint32_t Header::file_size(void) const {
return this->file_size_;
}
uint32_t Header::header_size(void) const {
return this->header_size_;
}
uint32_t Header::endian_tag(void) const {
return this->endian_tag_;
}
uint32_t Header::nb_classes(void) const {
return this->class_defs_size_;
}
uint32_t Header::nb_methods(void) const {
return this->method_ids_size_;
}
uint32_t Header::map(void) const {
return this->map_off_;
}
Header::location_t Header::strings(void) const {
return {this->string_ids_off_, this->string_ids_size_};
}
Header::location_t Header::link(void) const {
return {this->link_off_, this->link_size_};
}
Header::location_t Header::types(void) const {
return {this->type_ids_off_, this->type_ids_size_};
}
Header::location_t Header::prototypes(void) const {
return {this->proto_ids_off_, this->proto_ids_size_};
}
Header::location_t Header::fields(void) const {
return {this->field_ids_off_, this->field_ids_size_};
}
Header::location_t Header::methods(void) const {
return {this->method_ids_off_, this->method_ids_size_};
}
Header::location_t Header::classes(void) const {
return {this->class_defs_off_, this->class_defs_size_};
}
Header::location_t Header::data(void) const {
return {this->data_off_, this->data_size_};
}
void Header::accept(Visitor& visitor) const {
visitor.visit(*this);
}
bool Header::operator==(const Header& rhs) const {
size_t hash_lhs = Hash::hash(*this);
size_t hash_rhs = Hash::hash(rhs);
return hash_lhs == hash_rhs;
}
bool Header::operator!=(const Header& rhs) const {
return not (*this == rhs);
}
std::ostream& operator<<(std::ostream& os, const Header& hdr) {
static constexpr size_t WIDTH = 20;
std::string magic_str;
for (uint8_t c : hdr.magic()) {
if (::isprint(c)) {
magic_str.push_back(static_cast<char>(c));
} else {
std::stringstream ss;
ss << std::dec << "'\\" << static_cast<uint32_t>(c) << "'";
magic_str += ss.str();
}
}
const signature_t& sig = hdr.signature();
std::string sig_str = std::accumulate(
std::begin(sig),
std::end(sig),
std::string{},
[] (const std::string& s, uint8_t c) {
std::stringstream ss;
return s + hex_str(c);
});
os << std::hex << std::left << std::showbase;
PRINT_FIELD("Magic:", magic_str);
PRINT_FIELD("Checksum:", hdr.checksum());
PRINT_FIELD("Signature:", sig_str);
PRINT_FIELD("File Size:", hdr.file_size());
PRINT_FIELD("Header Size:", hdr.header_size());
PRINT_FIELD("Endian Tag:", hdr.endian_tag());
PRINT_FIELD("Map Offset:", hdr.map());
PRINT_LOCATION("Strings:", hdr.strings());
PRINT_LOCATION("Link:", hdr.link());
PRINT_LOCATION("Types:", hdr.types());
PRINT_LOCATION("Prototypes:", hdr.prototypes());
PRINT_LOCATION("Fields:", hdr.fields());
PRINT_LOCATION("Methods:", hdr.methods());
PRINT_LOCATION("Classes:", hdr.classes());
PRINT_LOCATION("Data:", hdr.data());
return os;
}
Header::~Header(void) = default;
} // Namespace DEX
} // Namespace LIEF
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