| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 2010 Free Software Foundation, Inc. |
| * |
| * GRUB is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * GRUB is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with GRUB. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <grub/types.h> |
| #include <grub/misc.h> |
| #include <grub/decompressor.h> |
| |
| #include "xz.h" |
| #include "xz_stream.h" |
| |
| void |
| grub_decompress_core (void *src, void *dst, unsigned long srcsize, |
| unsigned long dstsize) |
| { |
| struct xz_dec *dec; |
| struct xz_buf buf; |
| |
| find_scratch (src, dst, srcsize, dstsize); |
| |
| dec = xz_dec_init (GRUB_DECOMPRESSOR_DICT_SIZE); |
| |
| buf.in = src; |
| buf.in_pos = 0; |
| buf.in_size = srcsize; |
| buf.out = dst; |
| buf.out_pos = 0; |
| buf.out_size = dstsize; |
| |
| while (buf.in_pos != buf.in_size) |
| { |
| enum xz_ret xzret; |
| xzret = xz_dec_run (dec, &buf); |
| switch (xzret) |
| { |
| case XZ_MEMLIMIT_ERROR: |
| case XZ_FORMAT_ERROR: |
| case XZ_OPTIONS_ERROR: |
| case XZ_DATA_ERROR: |
| case XZ_BUF_ERROR: |
| return; |
| default: |
| break; |
| } |
| } |
| } |