public static byte[] Compress(bool isCompress, byte[] input, int idxBg, int length)
{
byte[] ret = null;
try
{
if (isCompress)//压缩
{
using (MemoryStream memoryStream = new MemoryStream())
{
ZOutputStream zos = new ZOutputStream(memoryStream, zlibConst.Z_DEFAULT_COMPRESSION);
zos.Write(input, idxBg, length);
zos.Dispose();
ret = memoryStream.ToArray();
memoryStream.Flush();
}
}
else
{
using (MemoryStream memoryStream = new MemoryStream())
{
ZOutputStream zos = new ZOutputStream(memoryStream);
//解压缩时间，调用Write_NoException，防止攻击
if (!zos.Write_NoException(input, idxBg, length))
{
zos.Dispose();
return(null);
}
zos.Dispose();
ret = memoryStream.ToArray();
memoryStream.Flush();
}
}
}
catch (Exception)
{
//LogEngine.Write(LOGTYPE.ERROR, ex.ToString());
ret = null;
}
return(ret);
}