mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
brentholtsclaw
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/** CHIPSEC: Platform Security Assessment Framework
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Copyright (c) 2019, Intel Corporation
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; Version 2.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Contact information:
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chipsec@intel.com
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This file incorporates work covered by the following copyright and permission notice
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**/
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/** @file
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Compression routine. The compression algorithm is a mixture of LZ77 and Huffman
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coding. LZ77 transforms the source data into a sequence of Original Characters
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and Pointers to repeated strings. This sequence is further divided into Blocks
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and Huffman codings are applied to each Block.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "Compress.h"
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EFI_STATUS
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Pack (
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IN VOID *Source,
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IN UINT32 SrcSize,
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OUT VOID **Destination,
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OUT UINT32 *DstSize,
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IN UINTN Algorithm
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)
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{
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EFI_STATUS Status;
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Status = EFI_SUCCESS;
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*Destination = (VOID *)malloc(SrcSize);
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if (*Destination == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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switch (Algorithm) {
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case 0:
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memcpy(*Destination, Source, SrcSize);
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return Status;
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break;
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case 1:
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Status = EfiCompress(Source, SrcSize, *Destination, DstSize);
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if (Status == EFI_BUFFER_TOO_SMALL){
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free(*Destination);
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*Destination = (VOID *)malloc(*DstSize);
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if (*Destination == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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}
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else{
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Status = EfiCompress(Source, SrcSize, *Destination, DstSize);
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}
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}
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break;
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case 2:
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Status = TianoCompress(Source, SrcSize, *Destination, DstSize);
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if (Status == EFI_BUFFER_TOO_SMALL){
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free(*Destination);
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*Destination = (VOID *)malloc(*DstSize);
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if (*Destination == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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}
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else{
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Status = TianoCompress(Source, SrcSize, *Destination, DstSize);
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}
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}
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break;
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default:
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Status = EFI_INVALID_PARAMETER;
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}
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if (EFI_ERROR (Status)) {
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return EFI_OUT_OF_RESOURCES;
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}
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return Status;
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}
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