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Add support for UTF-16 strings for LowPaths in FS:USER

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This commit is contained in:
archshift 2014-11-04 00:04:25 -08:00
parent 1aa29b2b6c
commit 0ad5964c8b
2 changed files with 179 additions and 83 deletions
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215
src/core/hle/service/fs_user.cpp
View File

@ -5,6 +5,7 @@
#include "common/common.h"
#include "fs_user.h"
#include "common/string_util.h"
#include "core/settings.h"
#include "core/hle/kernel/archive.h"
@ -13,18 +14,73 @@
namespace FS_User {
// Command to access archive file
enum class LowPathType : u32 {
Invalid = 0,
Empty = 1,
Binary = 2,
Char = 3,
Wchar = 4
};
std::string GetStringFromCmdBuff(const u32 pointer, const u32 size) {
FS_Path::FS_Path(LowPathType type, u32 size, u32 pointer):
type(type)
{
switch (type) {
case Binary:
{
auto data = Memory::GetPointer(pointer);
binary = std::vector<u8>(data, data + size);
break;
}
case Char:
{
auto data = reinterpret_cast<const char*>(Memory::GetPointer(pointer));
return std::string(data, size - 1);
string = std::string(data, size - 1);
}
case Wchar:
{
auto data = reinterpret_cast<const char16_t*>(Memory::GetPointer(pointer));
u16str = std::u16string(data, size/2 - 1);
}
}
}
FS_Path::LowPathType FS_Path::GetType() const {
return type;
}
const std::vector<u8>& FS_Path::GetBinary() const {
return binary;
}
const std::string& FS_Path::GetString() const {
_dbg_assert_msg_(KERNEL, type == Char, "LowPathType is not Char!");
return string;
}
const std::u16string& FS_Path::GetU16Str() const {
_dbg_assert_msg_(KERNEL, type == Wchar, "LowPathType is not Wchar!");
return u16str;
}
std::string FS_Path::AsString() {
switch (GetType()) {
case FS_Path::Char:
return GetString();
case FS_Path::Empty:
return {};
case FS_Path::Wchar:
{
auto str16 = GetU16Str();
return Common::UTF16ToUTF8(std::wstring(str16.cbegin(), str16.cend()));
}
}
}
std::u16string FS_Path::AsU16Str() {
switch (GetType()) {
case FS_Path::Wchar:
return GetU16Str();
case FS_Path::Empty:
return {};
case FS_Path::Char:
{
auto str = GetString();
return std::u16string(str.cbegin(), str.cend());
}
}
}
// We currently return 0 for success and -1 for failure in cmd_buff[1]. -1 was chosen because it
@ -44,32 +100,36 @@ void Initialize(Service::Interface* self) {
void OpenFile(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
u32 transaction = cmd_buff[1];
// TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
// 3dmoo's or ctrulib's implementations. Triple check if it's really the case.
Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
LowPathType type = static_cast<LowPathType>(cmd_buff[4]);
u32 size = cmd_buff[5];
auto filename_type = static_cast<FS_Path::LowPathType>(cmd_buff[4]);
u32 filename_size = cmd_buff[5];
FileSys::Mode mode; mode.hex = cmd_buff[6];
u32 attributes = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
u32 pointer = cmd_buff[9];
u32 filename_ptr = cmd_buff[9];
if (type != LowPathType::Char) {
ERROR_LOG(KERNEL, "file LowPath type other than char is currently unsupported");
cmd_buff[1] = -1;
FS_Path file_path(filename_type, filename_size, filename_ptr);
std::string file_string;
switch (file_path.GetType()) {
case FS_Path::Char:
case FS_Path::Wchar:
file_string = file_path.AsString();
break;
default:
WARN_LOG(KERNEL, "file LowPath type is currently unsupported; returning archive handle instead");
return;
}
std::string file_name = GetStringFromCmdBuff(pointer, size);
DEBUG_LOG(KERNEL, "type=%d size=%d mode=%d attrs=%d data=%s",
filename_type, filename_size, mode, attributes, file_string.c_str());
DEBUG_LOG(KERNEL, "type=%d size=%d mode=%d attrs=%d data=%s", type, size, mode, attributes, file_name.c_str());
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_name, mode);
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_string, mode);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_name.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_string.c_str());
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}
@ -80,31 +140,25 @@ void OpenFile(Service::Interface* self) {
void OpenFileDirectly(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
u32 transaction = cmd_buff[1];
auto archive_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[2]);
LowPathType archive_type = static_cast<LowPathType>(cmd_buff[3]);
u32 archive_size = cmd_buff[4];
LowPathType file_type = static_cast<LowPathType>(cmd_buff[5]);
u32 size = cmd_buff[6];
auto archivename_type = static_cast<FS_Path::LowPathType>(cmd_buff[3]);
u32 archivename_size = cmd_buff[4];
auto filename_type = static_cast<FS_Path::LowPathType>(cmd_buff[5]);
u32 filename_size = cmd_buff[6];
FileSys::Mode mode; mode.hex = cmd_buff[7];
u32 attributes = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
u32 archive_pointer = cmd_buff[10];
u32 pointer = cmd_buff[12];
u32 archivename_ptr = cmd_buff[10];
u32 filename_ptr = cmd_buff[12];
if (archive_type != LowPathType::Empty) {
DEBUG_LOG(KERNEL, "archive_type=%d archive_size=%d file_type=%d file_size=%d file_mode=%d file_attrs=%d",
archivename_type, archivename_size, filename_type, filename_size, mode, attributes);
if (archivename_type != FS_Path::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = -1;
return;
}
std::string archive_name = GetStringFromCmdBuff(archive_pointer, archive_size);
std::string file_name = GetStringFromCmdBuff(pointer, size);
DEBUG_LOG(KERNEL, "archive_type=%d archive_size=%d archive_data=%s "
"file_type=%d file_size=%d file_mode=%d file_attrs=%d file_data=%s",
archive_type, archive_size, archive_name.c_str(),
file_type, size, mode, attributes, file_name.c_str());
// TODO(Link Mauve): check if we should even get a handle for the archive, and don't leak it.
Handle archive_handle = Kernel::OpenArchive(archive_id);
if (archive_handle) {
@ -112,23 +166,30 @@ void OpenFileDirectly(Service::Interface* self) {
// cmd_buff[2] isn't used according to 3dmoo's implementation.
cmd_buff[3] = archive_handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for archive %s", archive_name.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for archive");
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
return;
}
if (file_type != LowPathType::Char) {
WARN_LOG(KERNEL, "file LowPath type other than char is currently unsupported; returning archive handle instead");
FS_Path file_path(filename_type, filename_size, filename_ptr);
std::string file_string;
switch (file_path.GetType()) {
case FS_Path::Char:
case FS_Path::Wchar:
file_string = file_path.AsString();
break;
default:
WARN_LOG(KERNEL, "file LowPath type is currently unsupported; returning archive handle instead");
return;
}
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_name, mode);
Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_string, mode);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_name.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_string.c_str());
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}
@ -153,21 +214,25 @@ void CreateDirectory(Service::Interface* self) {
// TODO: cmd_buff[2], aka archive handle lower word, isn't used according to
// 3dmoo's or ctrulib's implementations. Triple check if it's really the case.
Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
LowPathType type = static_cast<LowPathType>(cmd_buff[4]);
u32 name_size = cmd_buff[5];
u32 name_offset = cmd_buff[8];
auto dirname_type = static_cast<FS_Path::LowPathType>(cmd_buff[4]);
u32 dirname_size = cmd_buff[5];
u32 dirname_ptr = cmd_buff[8];
if (type != LowPathType::Char) {
ERROR_LOG(KERNEL, "directory LowPath type other than char is currently unsupported");
FS_Path dir_path(dirname_type, dirname_size, dirname_ptr);
std::string dir_string;
switch (dir_path.GetType()) {
case FS_Path::Char:
case FS_Path::Wchar:
dir_string = dir_path.AsString();
break;
default:
cmd_buff[1] = -1;
return;
}
std::string dir_name = GetStringFromCmdBuff(name_offset, name_size);
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_string.c_str());
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, name_size, dir_name.c_str());
cmd_buff[1] = Kernel::CreateDirectoryFromArchive(archive_handle, dir_name);
cmd_buff[1] = Kernel::CreateDirectoryFromArchive(archive_handle, dir_string);
DEBUG_LOG(KERNEL, "called");
}
@ -178,26 +243,30 @@ void OpenDirectory(Service::Interface* self) {
// TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
// 3dmoo's or ctrulib's implementations. Triple check if it's really the case.
Handle archive_handle = static_cast<Handle>(cmd_buff[2]);
LowPathType type = static_cast<LowPathType>(cmd_buff[3]);
u32 size = cmd_buff[4];
u32 pointer = cmd_buff[6];
auto dirname_type = static_cast<FS_Path::LowPathType>(cmd_buff[3]);
u32 dirname_size = cmd_buff[4];
u32 dirname_ptr = cmd_buff[6];
if (type != LowPathType::Char) {
ERROR_LOG(KERNEL, "directory LowPath type other than char is currently unsupported");
FS_Path dir_path(dirname_type, dirname_size, dirname_ptr);
std::string dir_string;
switch (dir_path.GetType()) {
case FS_Path::Char:
case FS_Path::Wchar:
dir_string = dir_path.AsString();
break;
default:
cmd_buff[1] = -1;
return;
}
std::string dir_name = GetStringFromCmdBuff(pointer, size);
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_string.c_str());
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, size, dir_name.c_str());
Handle handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_name);
Handle handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_string);
if (handle) {
cmd_buff[1] = 0;
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for directory %s", dir_name.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for directory %s", dir_string.c_str());
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}
@ -208,28 +277,26 @@ void OpenDirectory(Service::Interface* self) {
void OpenArchive(Service::Interface* self) {
u32* cmd_buff = Service::GetCommandBuffer();
auto arch_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[1]);
LowPathType type = static_cast<LowPathType>(cmd_buff[2]);
u32 size = cmd_buff[3];
u32 pointer = cmd_buff[5];
auto archive_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[1]);
auto archivename_type = static_cast<FS_Path::LowPathType>(cmd_buff[2]);
u32 archivename_size = cmd_buff[3];
u32 archivename_ptr = cmd_buff[5];
if (type != LowPathType::Empty) {
DEBUG_LOG(KERNEL, "type=%d size=%d", archivename_type, archivename_size);
if (archivename_type != FS_Path::Empty) {
ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
cmd_buff[1] = -1;
return;
}
std::string archive_name = GetStringFromCmdBuff(pointer, size);
DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, size, archive_name.c_str());
Handle handle = Kernel::OpenArchive(arch_id);
Handle handle = Kernel::OpenArchive(archive_id);
if (handle) {
cmd_buff[1] = 0;
// cmd_buff[2] isn't used according to 3dmoo's implementation.
cmd_buff[3] = handle;
} else {
ERROR_LOG(KERNEL, "failed to get a handle for archive %s", archive_name.c_str());
ERROR_LOG(KERNEL, "failed to get a handle for archive");
// TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
cmd_buff[1] = -1;
}

29
src/core/hle/service/fs_user.h
View File

@ -11,6 +11,35 @@
namespace FS_User {
class FS_Path {
public:
// Command to access archive file
enum LowPathType : u32 {
Invalid = 0,
Empty = 1,
Binary = 2,
Char = 3,
Wchar = 4
};
FS_Path(LowPathType type, u32 size, u32 pointer);
LowPathType GetType() const;
const std::vector<u8>& GetBinary() const;
const std::string& GetString() const;
const std::u16string& GetU16Str() const;
std::string AsString();
std::u16string AsU16Str();
private:
LowPathType type;
std::vector<u8> binary;
std::string string;
std::u16string u16str;
};
/// Interface to "fs:USER" service
class Interface : public Service::Interface {
public: