Eric Pouech : ntdll: Implemented serial IOCTL for status: GET_COMM_STATUS.

[Alexandre Julliard]

Module: wine
Branch: refs/heads/master
Commit: a6d339c6560c2d371dc856c8ab2c1b25d216abe9
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=a6d339c6560c2d371dc856c8ab2c1b25d216abe9

Author: Eric Pouech <eric.pouech at wanadoo.fr>
Date:   Mon Feb 27 22:22:06 2006 +0100

ntdll: Implemented serial IOCTL for status: GET_COMM_STATUS.

---

 dlls/ntdll/serial.c |   38 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)

diff --git a/dlls/ntdll/serial.c b/dlls/ntdll/serial.c
index 04f9534..879f6f1 100644
--- a/dlls/ntdll/serial.c
+++ b/dlls/ntdll/serial.c
@@ -168,6 +168,36 @@ static NTSTATUS get_modem_status(int fd,
     return status;
 }
 
+static NTSTATUS get_status(int fd, SERIAL_STATUS* ss)
+{
+    NTSTATUS    status = STATUS_SUCCESS;
+
+    ss->Errors = 0;
+    ss->HoldReasons = 0;
+    ss->EofReceived = FALSE;
+    ss->WaitForImmediate = FALSE;
+#ifdef TIOCOUTQ
+    if (ioctl(fd, TIOCOUTQ, &ss->AmountInOutQueue) == -1)
+    {
+        WARN("ioctl returned error\n");
+        status = FILE_GetNtStatus();
+    }
+#else
+    ss->AmountInOutQueue = 0; /* FIXME: find a different way to find out */
+#endif
+
+#ifdef TIOCINQ
+    if (ioctl(fd, TIOCINQ, &ss->AmountInInQueue))
+    {
+        WARN("ioctl returned error\n");
+        status = FILE_GetNtStatus();
+    }
+#else
+    ss->AmountInInQueue = 0; /* FIXME: find a different way to find out */
+#endif
+    return status;
+}
+
 static NTSTATUS get_wait_mask(HANDLE hDevice, DWORD* mask)
 {
     NTSTATUS    status;
@@ -247,6 +277,14 @@ NTSTATUS COMM_DeviceIoControl(HANDLE hDe
 
     switch (dwIoControlCode)
     {
+    case IOCTL_SERIAL_GET_COMMSTATUS:
+        if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_STATUS))
+        {
+            if (!(status = get_status(fd, (SERIAL_STATUS*)lpOutBuffer)))
+                sz = sizeof(SERIAL_STATUS);
+        }
+        else status = STATUS_INVALID_PARAMETER;
+        break;
     case IOCTL_SERIAL_GET_MODEMSTATUS:
         if (lpOutBuffer && nOutBufferSize == sizeof(DWORD))
         {