uncompress_lzo.c

来自「QNX ADS BSP code for i.MX27 chips」· C语言 代码 · 共 47 行

/*
 * $QNXLicenseC: 
 * Copyright 2007, QNX Software Systems.  
 *  
 * Licensed under the Apache License, Version 2.0 (the "License"). You  
 * may not reproduce, modify or distribute this software except in  
 * compliance with the License. You may obtain a copy of the License  
 * at: http://www.apache.org/licenses/LICENSE-2.0  
 *  
 * Unless required by applicable law or agreed to in writing, software  
 * distributed under the License is distributed on an "AS IS" basis,  
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied. 
 * 
 * This file may contain contributions from others, either as  
 * contributors under the License or as licensors under other terms.   
 * Please review this entire file for other proprietary rights or license  
 * notices, as well as the QNX Development Suite License Guide at  
 * http://licensing.qnx.com/license-guide/ for other information. 
 * $
 */
 
 #include "startup.h"
#include <lzo1x.h>

void
uncompress_lzo(uint8_t *dst, uint8_t *src) {
	unsigned	len;
	lzo_uint	out_len;
	int			status;

	if(lzo_init() != LZO_E_OK) {
		crash("init fail");
	}
	for(;;) {
		len = (*src++ << 8);
		len += (*src++);
		if(len == 0) break;
		status = lzo1x_decompress(src, len, dst, &out_len, NULL);
		if(status != LZO_E_OK) {
			crash("fail");
		}
		dst += out_len;
		src += len;
	}
}