// Read(u32 fd) -> (i32 ret, u32 bsd_errno, buffer<i8, 0x22, 0> message)
public ResultCode Read(ServiceCtx context)
{
int fd = context.RequestData.ReadInt32();
(ulong receivePosition, ulong receiveLength) = context.Request.GetBufferType0x22();
WritableRegion receiveRegion = context.Memory.GetWritableRegion(receivePosition, (int)receiveLength);
LinuxError errno = LinuxError.EBADF;
IFileDescriptor file = _context.RetrieveFileDescriptor(fd);
int result = -1;
if (file != null)
{
errno = file.Read(out result, receiveRegion.Memory.Span);
if (errno == LinuxError.SUCCESS)
{
SetResultErrno(file, result);
receiveRegion.Dispose();
}
}
return(WriteBsdResult(context, result, errno));
}
// RecvFrom(u32 sock, u32 flags) -> (i32 ret, u32 bsd_errno, u32 addrlen, buffer<i8, 0x22, 0> message, buffer<nn::socket::sockaddr_in, 0x22, 0x10>)
public ResultCode RecvFrom(ServiceCtx context)
{
int socketFd = context.RequestData.ReadInt32();
BsdSocketFlags socketFlags = (BsdSocketFlags)context.RequestData.ReadInt32();
(ulong receivePosition, ulong receiveLength) = context.Request.GetBufferType0x22(0);
(ulong sockAddrOutPosition, ulong sockAddrOutSize) = context.Request.GetBufferType0x22(1);
WritableRegion receiveRegion = context.Memory.GetWritableRegion(receivePosition, (int)receiveLength);
LinuxError errno = LinuxError.EBADF;
ISocket socket = _context.RetrieveSocket(socketFd);
int result = -1;
if (socket != null)
{
errno = socket.ReceiveFrom(out result, receiveRegion.Memory.Span, receiveRegion.Memory.Span.Length, socketFlags, out IPEndPoint endPoint);
if (errno == LinuxError.SUCCESS)
{
SetResultErrno(socket, result);
receiveRegion.Dispose();
context.Memory.Write(sockAddrOutPosition, BsdSockAddr.FromIPEndPoint(endPoint));
}
}
return(WriteBsdResult(context, result, errno));
}
// GetSockOpt(u32 socket, u32 level, u32 option_name) -> (i32 ret, u32 bsd_errno, u32, buffer<unknown, 0x22, 0>)
public ResultCode GetSockOpt(ServiceCtx context)
{
int socketFd = context.RequestData.ReadInt32();
SocketOptionLevel level = (SocketOptionLevel)context.RequestData.ReadInt32();
BsdSocketOption option = (BsdSocketOption)context.RequestData.ReadInt32();
(ulong bufferPosition, ulong bufferSize) = context.Request.GetBufferType0x22();
WritableRegion optionValue = context.Memory.GetWritableRegion(bufferPosition, (int)bufferSize);
LinuxError errno = LinuxError.EBADF;
ISocket socket = _context.RetrieveSocket(socketFd);
if (socket != null)
{
errno = socket.GetSocketOption(option, level, optionValue.Memory.Span);
if (errno == LinuxError.SUCCESS)
{
optionValue.Dispose();
}
}
return(WriteBsdResult(context, 0, errno));
}