Lightemerald/windows-user-space-emulator
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Add basic stdin support

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momo5502
2025-02-09 15:27:01 +01:00
parent d31ce97d8a
commit 11dbe6dfc1
1 changed files with 38 additions and 12 deletions
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50
src/windows-emulator/syscalls.cpp
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@@ -8,6 +8,7 @@
#include <ranges>
#include <cwctype>
#include <algorithm>
#include <iostream>
#include <utils/io.hpp>
#include <utils/string.hpp>
#include <utils/time.hpp>
@@ -602,7 +603,7 @@ namespace
{
const emulator_object<FILE_FS_DEVICE_INFORMATION> info_obj{c.emu, fs_information};
info_obj.access([&](FILE_FS_DEVICE_INFORMATION& info) {
if (file_handle == STDOUT_HANDLE.bits && !c.win_emu.buffer_stdout)
if (file_handle == STDOUT_HANDLE && !c.win_emu.buffer_stdout)
{
info.DeviceType = FILE_DEVICE_CONSOLE;
info.Characteristics = 0x20000;
@@ -2803,6 +2804,20 @@ namespace
return STATUS_NOT_SUPPORTED;
}
void commit_file_data(const std::string_view data, emulator& emu,
const emulator_object<IO_STATUS_BLOCK<EmulatorTraits<Emu64>>> io_status_block,
const uint64_t buffer)
{
if (io_status_block)
{
IO_STATUS_BLOCK<EmulatorTraits<Emu64>> block{};
block.Information = data.size();
io_status_block.write(block);
}
emu.write_memory(buffer, data.data(), data.size());
}
NTSTATUS handle_NtReadFile(const syscall_context& c, const handle file_handle, const uint64_t /*event*/,
const uint64_t /*apc_routine*/, const uint64_t /*apc_context*/,
const emulator_object<IO_STATUS_BLOCK<EmulatorTraits<Emu64>>> io_status_block,
@@ -2810,25 +2825,36 @@ namespace
const emulator_object<LARGE_INTEGER> /*byte_offset*/,
const emulator_object<ULONG> /*key*/)
{
std::string temp_buffer{};
temp_buffer.resize(length);
if (file_handle == STDIN_HANDLE)
{
char chr{};
if (std::cin.readsome(&chr, 1) <= 0)
{
std::cin.read(&chr, 1);
}
std::cin.putback(chr);
const auto read_count =
std::cin.readsome(temp_buffer.data(), static_cast<std::streamsize>(temp_buffer.size()));
const auto count = std::max(read_count, static_cast<std::streamsize>(0));
commit_file_data(std::string_view(temp_buffer.data(), count), c.emu, io_status_block, buffer);
return STATUS_SUCCESS;
}
const auto* f = c.proc.files.get(file_handle);
if (!f)
{
return STATUS_INVALID_HANDLE;
}
std::string temp_buffer{};
temp_buffer.resize(length);
const auto bytes_read = fread(temp_buffer.data(), 1, temp_buffer.size(), f->handle);
commit_file_data(std::string_view(temp_buffer.data(), bytes_read), c.emu, io_status_block, buffer);
if (io_status_block)
{
IO_STATUS_BLOCK<EmulatorTraits<Emu64>> block{};
block.Information = bytes_read;
io_status_block.write(block);
}
c.emu.write_memory(buffer, temp_buffer.data(), temp_buffer.size());
return STATUS_SUCCESS;
}