60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2010 Free Software Foundation, Inc.
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*
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* GRUB 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, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/types.h>
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#include <grub/misc.h>
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#include <grub/decompressor.h>
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#include "xz.h"
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#include "xz_stream.h"
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void
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grub_decompress_core (void *src, void *dst, unsigned long srcsize,
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unsigned long dstsize)
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{
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struct xz_dec *dec;
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struct xz_buf buf;
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find_scratch (src, dst, srcsize, dstsize);
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dec = xz_dec_init (GRUB_DECOMPRESSOR_DICT_SIZE);
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buf.in = src;
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buf.in_pos = 0;
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buf.in_size = srcsize;
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buf.out = dst;
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buf.out_pos = 0;
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buf.out_size = dstsize;
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while (buf.in_pos != buf.in_size)
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{
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enum xz_ret xzret;
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xzret = xz_dec_run (dec, &buf);
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switch (xzret)
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{
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case XZ_MEMLIMIT_ERROR:
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case XZ_FORMAT_ERROR:
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case XZ_OPTIONS_ERROR:
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case XZ_DATA_ERROR:
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case XZ_BUF_ERROR:
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return;
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default:
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break;
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}
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}
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}
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