61c822900e
... and document the interface. Change-Id: I86a071a61fd6c1ef842f8ffe51f12f0cefdaf2fe Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/11362 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
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* compression handling for cbfstool
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*
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* Copyright (C) 2009 coresystems GmbH
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* written by Patrick Georgi <patrick.georgi@coresystems.de>
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*
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* Adapted from code
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* Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>, released
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* under identical license terms
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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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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*
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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.
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*/
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#include <string.h>
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#include <stdio.h>
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#include "common.h"
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static int lzma_compress(char *in, int in_len, char *out, int *out_len)
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{
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return do_lzma_compress(in, in_len, out, out_len);
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}
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static int lzma_decompress(char *in, int in_len, char *out, unused int out_len)
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{
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return do_lzma_uncompress(out, out_len, in, in_len);
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}
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static int none_compress(char *in, int in_len, char *out, int *out_len)
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{
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memcpy(out, in, in_len);
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*out_len = in_len;
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return 0;
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}
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static int none_decompress(char *in, int in_len, char *out, unused int out_len)
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{
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memcpy(out, in, in_len);
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return 0;
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}
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comp_func_ptr compression_function(enum comp_algo algo)
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{
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comp_func_ptr compress;
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switch (algo) {
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case CBFS_COMPRESS_NONE:
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compress = none_compress;
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break;
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case CBFS_COMPRESS_LZMA:
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compress = lzma_compress;
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break;
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default:
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ERROR("Unknown compression algorithm %d!\n", algo);
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return NULL;
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}
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return compress;
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}
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decomp_func_ptr decompression_function(enum comp_algo algo)
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{
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decomp_func_ptr decompress;
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switch (algo) {
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case CBFS_COMPRESS_NONE:
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decompress = none_decompress;
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break;
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case CBFS_COMPRESS_LZMA:
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decompress = lzma_decompress;
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break;
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default:
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ERROR("Unknown compression algorithm %d!\n", algo);
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return NULL;
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}
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return decompress;
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}
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