PipeServer.cs

class PipeServer
{
    static
    int
    Main(string[] args)
    {
        if(args.Length < 2
        ||(System.String.Compare(args[0], "in")  != 0
        && System.String.Compare(args[0], "out") != 0)) {
            System.Console.WriteLine("Usage: PipeServer <in | out> <process> <args>");

            return 1;
        }

        ///////////////////////////////////
        // // // Process arguments // // //
        ///////////////////////////////////
        // Convert pipe direction
        System.IO.Pipes.PipeDirection pipe_dir = 0;
        if(System.String.Compare(args[0], "in") == 0) {
            pipe_dir = System.IO.Pipes.PipeDirection.In;
        }
        if(System.String.Compare(args[0], "out") == 0) {
            pipe_dir = System.IO.Pipes.PipeDirection.Out;
        }

        // Find process name to start
        string proc_name = args[1];

        // Build commandline argument string
        string proc_args = "";
        for(System.UInt16 i = 2; i < args.Length; i++) {
            if(args[i].IndexOf(" ") > -1) {
                proc_args += "\"" + args[i].Replace("\"", "\\\"") + "\" ";
            } else {
                proc_args += args[i] + " ";
            }
        }

        // Create server
        string                                pipe_name   = "";
        System.IO.Pipes.NamedPipeServerStream pipe_stream = null;
        for(System.UInt16 i = 1; i < 65535; i++) {
            // Generate new pipe name
            pipe_name = "pipeserver_" + System.Convert.ToString(i);

            try {
                // Start server
                pipe_stream = new System.IO.Pipes.NamedPipeServerStream(pipe_name, pipe_dir, 1);

                break;
            } catch(System.IO.IOException _) {
                continue;
            }
        }
        if(pipe_stream == null) {
            System.Console.WriteLine("Could not create pipe");

            return 1;
        }

        // Make sure the process knows about the pipe name
        proc_args = proc_args.Replace("{pipe}", "\\\\.\\pipe\\" + pipe_name);

        // Run process
        System.Diagnostics.Process proc = new System.Diagnostics.Process();
        proc.StartInfo.FileName  = proc_name;
        proc.StartInfo.Arguments = proc_args;
        proc.Start();

        // Connect pipes and wait until EOF
        pipe_stream.WaitForConnection();
        try {
            if(pipe_dir == System.IO.Pipes.PipeDirection.In) {
                pipe_stream.CopyTo(System.Console.OpenStandardOutput());
            }
            if(pipe_dir == System.IO.Pipes.PipeDirection.Out) {
                System.Console.OpenStandardInput().CopyTo(pipe_stream);
            }
        } catch (System.IO.IOException e) {
            System.Console.WriteLine("error: {0}", e.Message);

            return 1;
        }

        // Wait for process termination
        while(!proc.HasExited) {
            proc.WaitForExit();
        }

        // Return correct exit code
        return proc.ExitCode;
    }
}