76 lines
3.4 KiB
C++
76 lines
3.4 KiB
C++
#include <elfpatcher/windows/WindowsIconResourceBuilder.hpp>
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#include <elfpatcher/windows/WindowsPeFormat.hpp>
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#include <domain/Types.hpp>
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#include <algorithm>
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#include <cstdint>
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#include <filesystem>
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#include <iostream>
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#include <stdexcept>
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#include <string>
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#include <vector>
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namespace {
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const std::vector<std::uint8_t> Png{
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0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
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0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08, 0x06, 0x00, 0x00, 0x00, 0x1f, 0x15, 0xc4,
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0x89, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x44, 0x41, 0x54, 0x78, 0x9c, 0x63, 0xf8, 0xcf, 0xc0, 0xf0,
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0x1f, 0x00, 0x05, 0x00, 0x01, 0xff, 0x89, 0x99, 0x3d, 0x1d, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45,
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0x4e, 0x44, 0xae, 0x42, 0x60, 0x82};
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void require(const bool condition, const std::string& message) {
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if (!condition) throw std::runtime_error(message);
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}
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std::uint32_t readU32(const std::vector<std::uint8_t>& data, const std::size_t offset) {
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return static_cast<std::uint32_t>(data[offset]) | static_cast<std::uint32_t>(data[offset + 1]) << 8 |
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static_cast<std::uint32_t>(data[offset + 2]) << 16 | static_cast<std::uint32_t>(data[offset + 3]) << 24;
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}
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void run() {
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const Elfpatcher::Windows::WindowsIconResourceBuilder builder;
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const std::filesystem::path iconPath = "valid/icon0.png";
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const std::uint32_t nextRva = 0x50000;
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std::vector<Elfpatcher::Windows::PeSection> sections;
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const auto directory = builder.Build(Png, iconPath, sections, nextRva);
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require(sections.size() == 1, "Expected one section");
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require(sections[0].Name == ".rsrc", "Unexpected section name: " + sections[0].Name);
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require(sections[0].Rva == nextRva, "Unexpected section RVA");
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require(sections[0].Characteristics == (Elfpatcher::Windows::SectionRead | 0x40u), "Unexpected section characteristics");
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const auto& data = sections[0].Data;
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require(data.size() == 184 + Png.size(), "Unexpected section size");
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require(directory.Rva == nextRva && directory.Size == data.size(), "Unexpected resource directory");
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require(readU32(data, 16) == 3 && readU32(data, 24) == 14, "Unexpected resource types");
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require(readU32(data, 128) == nextRva + 184 && readU32(data, 132) == Png.size(), "Unexpected RT_ICON data entry");
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require(readU32(data, 144) == nextRva + 160 && readU32(data, 148) == 20, "Unexpected RT_GROUP_ICON data entry");
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require(data[166] == 1 && data[167] == 1, "Unexpected icon dimensions");
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require(readU32(data, 174) == Png.size(), "Unexpected icon size in group entry");
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require(std::equal(Png.begin(), Png.end(), data.begin() + 184), "Icon bytes changed");
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const auto badPath = std::filesystem::path("bad/icon0.png");
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auto truncated = Png;
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truncated.resize(40);
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std::vector<Elfpatcher::Windows::PeSection> badSections;
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try {
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builder.Build(truncated, badPath, badSections, nextRva);
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} catch (const Domain::RelinkerException& e) {
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require(std::string(e.what()).find(badPath.string()) != std::string::npos, std::string("Failure does not name the icon: ") + e.what());
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require(badSections.empty(), "Section added despite the failure");
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return;
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}
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throw std::runtime_error("Build succeeded for a malformed icon");
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}
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}
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int main() {
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try {
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run();
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} catch (const std::exception& e) {
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std::cerr << e.what() << '\n';
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return 1;
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}
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return 0;
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}
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