public int read(byte b[], int off, int len) throws SmbException {
if (len <= 0) {
return 0;
}
long start = fp;
// ensure file is open
if (file.isOpen() == false) {
file.open(openFlags, 0, SmbFile.ATTR_NORMAL, options);
}
int r, n;
SmbComReadAndXResponse response = new SmbComReadAndXResponse(b, off);
do {
r = len > readSize ? readSize : len;
file.send(new SmbComReadAndX(file.fid, fp, r, null), response);
if ((n = response.dataLength) <= 0) {
return (int) ((fp - start) > 0L ? fp - start : -1);
}
fp += n;
len -= n;
response.off += n;
} while (len > 0 && n == r);
return (int) (fp - start);
}
/**
* Reads up to len bytes of data from this input stream into an array of bytes.
*
* @throws IOException if a network error occurs
*/
public int read(byte[] b, int off, int len) throws IOException {
if (len <= 0) {
return 0;
}
long start = fp;
if (tmp == null) {
throw new IOException("Bad file descriptor");
}
// ensure file is open
file.open(openFlags, SmbFile.ATTR_NORMAL, 0);
/*
* Read AndX Request / Response
*/
if (file.log.level > 2)
file.log.println("read: fid=" + file.fid + ",off=" + off + ",len=" + len);
SmbComReadAndXResponse response = new SmbComReadAndXResponse(b, off);
if (file.type == SmbFile.TYPE_NAMED_PIPE) {
response.responseTimeout = 0;
}
int r, n;
do {
r = len > readSize ? readSize : len;
if (file.log.level > 2) file.log.println("read: len=" + len + ",r=" + r + ",fp=" + fp);
try {
file.send(new SmbComReadAndX(file.fid, fp, r, null), response);
} catch (SmbException se) {
if (file.type == SmbFile.TYPE_NAMED_PIPE
&& se.getNtStatus() == NtStatus.NT_STATUS_PIPE_BROKEN) {
return -1;
}
throw se;
}
if ((n = response.dataLength) <= 0) {
return (int) ((fp - start) > 0L ? fp - start : -1);
}
fp += n;
len -= n;
response.off += n;
} while (len > 0 && n == r);
return (int) (fp - start);
}