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3.2.4.38 Application Requests Writing to a Named Pipe

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A client can write to a named pipe by issuing an SMB_COM_TRANSACTION request with the subcommand TRANS_WRITE_NMPIPE. The application MUST provide a Client.Open indicating the open named pipe to which data is to be written.

Named pipes can be in raw mode or message mode (see TRANS_SET_NMPIPE_STATE). If the named pipe is in raw mode, as indicated by a Client.Open.NamedPipeMessageMode value of FALSE, it can be written to using any of several Write operations (see section 3.2.4.15). If the pipe is in message mode, as indicated by a Client.Open.NamedPipeMessageMode value of TRUE, TRANS_WRITE_NMPIPE MUST be used to write discrete messages.

The client MUST construct the TRANS_WRITE_NMPIPE request message and MUST send it to the server as specified in section 3.2.4.1.