mirror of
https://github.com/acidanthera/OpenCorePkg.git
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75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/** @file
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Copyright (C) 2019, vit9696. All rights reserved.
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All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <Guid/FileInfo.h>
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#include <Protocol/SimpleFileSystem.h>
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EFI_STATUS
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ReadFileData (
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IN EFI_FILE_PROTOCOL *File,
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IN UINT32 Position,
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IN UINT32 Size,
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OUT UINT8 *Buffer
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)
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{
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EFI_STATUS Status;
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UINTN ReadSize;
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Status = File->SetPosition (File, Position);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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ReadSize = Size;
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Status = File->Read (File, &ReadSize, Buffer);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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if (ReadSize != Size) {
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return EFI_BAD_BUFFER_SIZE;
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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ReadFileSize (
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IN EFI_FILE_PROTOCOL *File,
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OUT UINT32 *Size
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)
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{
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EFI_STATUS Status;
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UINT64 Position;
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Status = File->SetPosition (File, 0xFFFFFFFFFFFFFFFFULL);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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Status = File->GetPosition (File, &Position);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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if ((UINT32) Position != Position) {
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return EFI_OUT_OF_RESOURCES;
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}
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*Size = (UINT32) Position;
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return EFI_SUCCESS;
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}
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