1 files changed, 133 insertions, 0 deletions
diff --git a/EdkNt32Pkg/Dxe/PlatformBds/Generic/String.c b/EdkNt32Pkg/Dxe/PlatformBds/Generic/String.c
new file mode 100644
index 0000000000..412b7f8f17
--- /dev/null
+++ b/EdkNt32Pkg/Dxe/PlatformBds/Generic/String.c
@@ -0,0 +1,133 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  string.c
+
+Abstract:
+
+  String support
+
+Revision History
+
+--*/
+
+#include "Bds.h"
+#include "String.h"
+#include "Language.h"
+
+extern UINT8  BdsStrings[];
+
+EFI_GUID      gBdsStringPackGuid = { 0x7bac95d3, 0xddf, 0x42f3, 0x9e, 0x24, 0x7c, 0x64, 0x49, 0x40, 0x37, 0x9a };
+
+EFI_STATUS
+InitializeStringSupport (
+  VOID
+  )
+/*++
+
+Routine Description:
+  
+  Initialize HII global accessor for string support
+
+Arguments:
+  None
+
+Returns:
+  String from ID.
+
+--*/
+{
+  EFI_STATUS        Status;
+  EFI_HII_PACKAGES  *PackageList;
+  //
+  // There should only ever be one HII protocol
+  //
+  Status = gBS->LocateProtocol (
+                  &gEfiHiiProtocolGuid,
+                  NULL,
+                  &Hii
+                  );
+  if (!EFI_ERROR (Status)) {
+    PackageList = PreparePackages (1, &gBdsStringPackGuid, BdsStrings);
+    Status      = Hii->NewPack (Hii, PackageList, &gStringPackHandle);
+    gBS->FreePool (PackageList);
+  }
+
+  return Status;
+}
+
+CHAR16 *
+GetStringById (
+  IN  STRING_REF   Id
+  )
+/*++
+
+Routine Description:
+
+  Get string by string id from HII Interface
+
+Arguments:
+
+  Id       - String ID.
+           
+Returns:
+
+  CHAR16 * - String from ID.
+  NULL     - If error occurs.
+
+--*/
+{
+  CHAR16      *String;
+  UINTN       StringLength;
+  EFI_STATUS  Status;
+
+  //
+  // Set default string size assumption at no more than 256 bytes
+  //
+  StringLength  = 0x100;
+
+  String        = AllocateZeroPool (StringLength);
+  if (String == NULL) {
+    //
+    // If this happens, we are oh-so-dead, but return a NULL in any case.
+    //
+    return NULL;
+  }
+  //
+  // Get the current string for the current Language
+  //
+  Status = Hii->GetString (Hii, gStringPackHandle, Id, FALSE, NULL, &StringLength, String);
+  if (EFI_ERROR (Status)) {
+    if (Status == EFI_BUFFER_TOO_SMALL) {
+      //
+      // Free the old pool
+      //
+      gBS->FreePool (String);
+
+      //
+      // Allocate new pool with correct value
+      //
+      String = AllocatePool (StringLength);
+      ASSERT (String != NULL);
+
+      Status = Hii->GetString (Hii, gStringPackHandle, Id, FALSE, NULL, &StringLength, String);
+      if (!EFI_ERROR (Status)) {
+        return String;
+      }
+    }
+
+    return NULL;
+  }
+
+  return String;
+}