BOOL _immediate_char(WINPR_COMM *pComm, const UCHAR *pChar)
{
BOOL result;
DWORD nbBytesWritten = -1;
/* FIXME: CommWriteFile uses a critical section, shall it be
* interrupted?
*
* FIXME: see also _get_commstatus()'s WaitForImmediate boolean
*/
result = CommWriteFile(pComm, pChar, 1, &nbBytesWritten, NULL);
assert(nbBytesWritten == 1);
return result;
}
static UINT serial_process_irp_write(SERIAL_DEVICE* serial, IRP* irp)
{
UINT32 Length;
UINT64 Offset;
DWORD nbWritten = 0;
if (Stream_GetRemainingLength(irp->input) < 32)
return ERROR_INVALID_DATA;
Stream_Read_UINT32(irp->input, Length); /* Length (4 bytes) */
Stream_Read_UINT64(irp->input, Offset); /* Offset (8 bytes) */
Stream_Seek(irp->input, 20); /* Padding (20 bytes) */
/* MS-RDPESP 3.2.5.1.5: The Offset field is ignored
* assert(Offset == 0);
*
* Using a serial printer, noticed though this field could be
* set.
*/
WLog_Print(serial->log, WLOG_DEBUG, "writing %"PRIu32" bytes to %s", Length,
serial->device.name);
/* FIXME: CommWriteFile to be replaced by WriteFile */
if (CommWriteFile(serial->hComm, Stream_Pointer(irp->input), Length, &nbWritten,
NULL))
{
irp->IoStatus = STATUS_SUCCESS;
}
else
{
WLog_Print(serial->log, WLOG_DEBUG,
"write failure to %s, nbWritten=%"PRIu32", last-error: 0x%08"PRIX32"", serial->device.name,
nbWritten, GetLastError());
irp->IoStatus = _GetLastErrorToIoStatus(serial);
}
WLog_Print(serial->log, WLOG_DEBUG, "%"PRIu32" bytes written to %s", nbWritten,
serial->device.name);
Stream_Write_UINT32(irp->output, nbWritten); /* Length (4 bytes) */
Stream_Write_UINT8(irp->output, 0); /* Padding (1 byte) */
return CHANNEL_RC_OK;
}
