7zlzma.cpp

来自「SFC游戏模拟器 snes9x 1.43 的原代码」· C++ 代码 · 共 47 行

/*
Copyright (C) 2002 Andrea Mazzoleni ( http://advancemame.sf.net )

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "7z.h"

#include "lzmadec.h"

bool decompress_lzma_7z(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned out_size) throw () {
	try {
		NCompress::NLZMA::CDecoder cc;

		ISequentialInStream in(reinterpret_cast<const char*>(in_data), in_size);
		ISequentialOutStream out(reinterpret_cast<char*>(out_data), out_size);

		UINT64 in_size_l = in_size;
		UINT64 out_size_l = out_size;

		if (cc.ReadCoderProperties(&in) != S_OK)
			return false;

		if (cc.Code(&in, &out, &in_size_l, &out_size_l) != S_OK)
			return false;

		if (out.size_get() != out_size || out.overflow_get())
			return false;

		return true;
	} catch (...) {
		return false;
	}
}