Minizip压缩加密示例代码

minizip.cpp

void crypt_test()
{
  zipFile zf = zipOpen("myarch.zip",APPEND_STATUS_ADDINZIP);
		int ret = zipOpenNewFileInZip(zf,
			"myfile.txt",
			&zfi,
			NULL,   0,
			NULL,   0,
			"my comment for this interior file",
			Z_DEFLATED,
			Z_NO_COMPRESSION
			);
		zipCloseFileInZip(zf);
		zipClose(zf, "my comment for exterior file");
		return 0;
}

void uncrypt_test()
{
  //采用MINIZIP进行文件解压缩 
  unzFile uf=NULL;
	unzFile data[1200];
	unz_global_info64 gi;
	unz_file_info64 FileInfo;  
 
	//打开zip文件 
	uf = unzOpen64("D:\\myfile.zip");
	int result=unzGetGlobalInfo64(uf, &gi);
	if (result != UNZ_OK)          
		throw "文件错误";
 
	//循环解压缩文件 
	for(int i=0;i<gi.number_entry;++i)
	{
		if (unzGetCurrentFileInfo64(uf, &FileInfo, 0, 0,NULL,0,NULL,0)!= UNZ_OK)
			 throw "文件错误";
 
		if(!(FileInfo.external_fa & FILE_ATTRIBUTE_DIRECTORY)) //文件，否则为目录 
			//打开文件
			//result=unzOpenCurrentFile(uf);/* 无密码 */
			result=unzOpenCurrentFilePassword(uf,"123"); /* 有密码 */
  
		//读取内容
		int size= unzReadCurrentFile(uf,data,sizeof(data));                    
 
		//关闭当前文件
		unzCloseCurrentFile(uf);   
 
		//出错
		if(i < gi.number_entry - 1 && unzGoToNextFile(uf) != UNZ_OK)
		  throw "error";        
	}
 
	//关闭流
	unzClose(uf);
}