public int read(byte[] b, int off, int len)
{
if (len == 0)
{
return(0);
}
int err;
z.next_out = b;
z.next_out_index = off;
z.avail_out = len;
do
{
if ((z.avail_in == 0) && (!nomoreinput))
{
// if buffer is empty and more input is avaiable, refill it
z.next_in_index = 0;
z.avail_in = SupportClass.ReadInput(in_Renamed, buf, 0, bufsize); //(bufsize<z.avail_out ? bufsize : z.avail_out));
if (z.avail_in == -1)
{
z.avail_in = 0;
nomoreinput = true;
}
}
if (compress)
{
err = z.deflate(flush);
}
else
{
err = z.inflate(flush);
}
if (nomoreinput && (err == zlibConst.Z_BUF_ERROR))
{
return(-1);
}
if (err != zlibConst.Z_OK && err != zlibConst.Z_STREAM_END)
{
throw new ZStreamException((compress?"de":"in") + "flating: " + z.msg);
}
if (nomoreinput && (z.avail_out == len))
{
return(-1);
}
}while (z.avail_out == len && err == zlibConst.Z_OK);
//System.err.print("("+(len-z.avail_out)+")");
return(len - z.avail_out);
}