Initial community commit

Src/Plugins/Input/in_cdda/scsi_id.cpp

@@ -0,0 +1,124 @@
+#include <windows.h>
+#include <winioctl.h>
+
+//functions to get the SCSI ID from a drive letter
+//thanks to Microsoft for making this a nightmare...
+
+// begin ntddscsi.h definitions
+
+#define IOCTL_SCSI_BASE                  \
+    FILE_DEVICE_CONTROLLER
+
+#define IOCTL_SCSI_GET_ADDRESS  CTL_CODE \
+    (                                    \
+        IOCTL_SCSI_BASE,                 \
+        0x0406,                          \
+        METHOD_BUFFERED,                 \
+        FILE_ANY_ACCESS                  \
+    )
+
+#define IOCTL_SCSI_GET_INQUIRY_DATA      \
+    CTL_CODE(                            \
+        IOCTL_SCSI_BASE,                 \
+        0x0403,                          \
+        METHOD_BUFFERED,                 \
+        FILE_ANY_ACCESS                  \
+    )
+
+typedef struct _SCSI_ADDRESS {
+    ULONG Length;
+    UCHAR PortNumber;
+    UCHAR PathId;
+    UCHAR TargetId;
+    UCHAR Lun;
+}SCSI_ADDRESS, *PSCSI_ADDRESS;
+
+//
+// Define SCSI information.
+// Used with the IOCTL_SCSI_GET_INQUIRY_DATA IOCTL.
+//
+
+typedef struct _SCSI_BUS_DATA {
+    UCHAR NumberOfLogicalUnits;
+    UCHAR InitiatorBusId;
+    ULONG InquiryDataOffset;
+}SCSI_BUS_DATA, *PSCSI_BUS_DATA;
+
+//
+// Define SCSI adapter bus information structure..
+// Used with the IOCTL_SCSI_GET_INQUIRY_DATA IOCTL.
+//
+
+typedef struct _SCSI_ADAPTER_BUS_INFO {
+    UCHAR NumberOfBuses;
+    SCSI_BUS_DATA BusData[1];
+} SCSI_ADAPTER_BUS_INFO, *PSCSI_ADAPTER_BUS_INFO;
+
+//
+// Define SCSI adapter bus information.
+// Used with the IOCTL_SCSI_GET_INQUIRY_DATA IOCTL.
+//
+
+typedef struct _SCSI_INQUIRY_DATA {
+    UCHAR PathId;
+    UCHAR TargetId;
+    UCHAR Lun;
+    BOOLEAN DeviceClaimed;
+    ULONG InquiryDataLength;
+    ULONG NextInquiryDataOffset;
+    UCHAR InquiryData[1];
+}SCSI_INQUIRY_DATA, *PSCSI_INQUIRY_DATA;
+
+// end ntddscsi.h definitions
+
+int getSCSIIDFromDrive(char driveletter, int *host, int *id, int *lun)
+{
+  //FUCKO: only works on NT :(
+
+  SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX);
+  wchar_t tmp[128] = {0};
+  wsprintf(tmp,L"\\\\.\\%c:",driveletter);
+  HANDLE device = CreateFile(
+            tmp,
+            0,     // no particular access necessary
+                   // for the IO control we're using
+            FILE_SHARE_READ
+                | FILE_SHARE_WRITE
+                | FILE_SHARE_DELETE,
+            0,     // no security attrs - ignored anyway
+            OPEN_EXISTING,
+            0,     // no attributes or flags
+            0      // no template
+        );
+
+  if( device == INVALID_HANDLE_VALUE ) return 0;
+
+  SCSI_ADDRESS sa;
+  ULONG bytes;
+
+  BOOL status = DeviceIoControl(
+            device,
+            IOCTL_SCSI_GET_ADDRESS,
+            0, 0,                    // no input buffer
+            &sa, sizeof(sa),         // output args
+            &bytes,                  // bytes returned
+            0                        // ignored
+  );
+
+  if (!status && 50 == GetLastError())
+  {
+	  *host	= ((driveletter > 'a') ? (driveletter - 'a') : (driveletter - 'A'));
+		*id		= 0;
+		*lun	= 0;
+		CloseHandle(device);
+		return 1;
+  }
+  CloseHandle(device);
+
+  if( !status ) return 0;
+
+  *host=sa.PortNumber;
+  *id=sa.TargetId;
+  *lun=sa.Lun;
+  return 1;
+}