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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/hle/service/ipc_helpers.h"
#include "core/hle/service/sockets/nsd.h"
#include "common/string_util.h"
namespace Service::Sockets {
constexpr Result ResultOverflow{ErrorModule::NSD, 6};
// This is nn::oe::ServerEnvironmentType
enum class ServerEnvironmentType : u8 {
Dd,
Lp,
Sd,
Sp,
Dp,
};
// This is nn::nsd::EnvironmentIdentifier
struct EnvironmentIdentifier {
std::array<u8, 8> identifier;
};
static_assert(sizeof(EnvironmentIdentifier) == 0x8);
NSD::NSD(Core::System& system_, const char* name) : ServiceFramework{system_, name} {
}
static std::string ResolveImpl(const std::string& fqdn_in) {
// The real implementation makes various substitutions.
// For now we just return the string as-is, which is good enough when not
// connecting to real Nintendo servers.
LOG_WARNING(Service, "(STUBBED) called, fqdn_in={}", fqdn_in);
return fqdn_in;
}
static Result ResolveCommon(const std::string& fqdn_in, std::array<char, 0x100>& fqdn_out) {
const auto res = ResolveImpl(fqdn_in);
if (res.size() >= fqdn_out.size()) {
return ResultOverflow;
}
std::memcpy(fqdn_out.data(), res.c_str(), res.size() + 1);
return ResultSuccess;
}
void NSD::SetChangeEnvironmentIdentifierDisabled(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const bool disabled = rp.Pop<bool>();
LOG_WARNING(Service, "(STUBBED) called, disabled={}", disabled);
IPC::ResponseBuilder rb{ctx, 1};
rb.Push(ResultSuccess);
}
void NSD::Resolve(HLERequestContext& ctx) {
const std::string fqdn_in = Common::StringFromBuffer(ctx.ReadBuffer(0));
std::array<char, 0x100> fqdn_out{};
const Result res = ResolveCommon(fqdn_in, fqdn_out);
ctx.WriteBuffer(fqdn_out);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(res);
}
void NSD::ResolveEx(HLERequestContext& ctx) {
const std::string fqdn_in = Common::StringFromBuffer(ctx.ReadBuffer(0));
std::array<char, 0x100> fqdn_out;
const Result res = ResolveCommon(fqdn_in, fqdn_out);
if (res.IsError()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(res);
return;
}
ctx.WriteBuffer(fqdn_out);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push(ResultSuccess);
}
void NSD::GetEnvironmentIdentifier(HLERequestContext& ctx) {
constexpr EnvironmentIdentifier lp1 = {
.identifier = {'l', 'p', '1', '\0', '\0', '\0', '\0', '\0'}};
ctx.WriteBuffer(lp1);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
void NSD::GetApplicationServerEnvironmentType(HLERequestContext& ctx) {
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(ResultSuccess);
rb.Push(static_cast<u32>(ServerEnvironmentType::Lp));
}
NSD::~NSD() = default;
} // namespace Service::Sockets
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