Network Server reading blob/clob data size
------------------------------------------
Key: DERBY-121
URL: http://issues.apache.org/jira/browse/DERBY-121
Project: Derby
Type: Bug
Components: Network Server
Versions: 10.1.0.0
Environment: The is a bit shift typo in Network Server reading clob/blob data
size
Reporter: Lynh Nguyen
Priority: Minor
in DDMReader.java
...
... readLengthAndCodePoint() ... {
...
switch (numberOfExtendedLenBytes) {
case 8:
ddmScalarLen =
((buffer[pos++] & 0xff) << 64) +
((buffer[pos++] & 0xff) << 56) +
((buffer[pos++] & 0xff) << 48) +
((buffer[pos++] & 0xff) << 40) +
((buffer[pos++] & 0xff) << 32) +
((buffer[pos++] & 0xff) << 16) +
((buffer[pos++] & 0xff) << 8) +
((buffer[pos++] & 0xff) << 0);
adjustSize = 12;
break;
case 6:
ddmScalarLen =
((buffer[pos++] & 0xff) << 48) +
((buffer[pos++] & 0xff) << 40) +
((buffer[pos++] & 0xff) << 32) +
((buffer[pos++] & 0xff) << 16) +
((buffer[pos++] & 0xff) << 8) +
((buffer[pos++] & 0xff) << 0);
adjustSize = 10;
break;
case 4:
ddmScalarLen =
((buffer[pos++] & 0xff) << 32) +
((buffer[pos++] & 0xff) << 16) +
((buffer[pos++] & 0xff) << 8) +
((buffer[pos++] & 0xff) << 0);
adjustSize = 8;
break;
...
The shift bits should be in order:
0,8,16,24
0,8,16,24,32,40
0,8,16,24,32,40,48,56
This will only affect the larger clob/blob (over 64K ...)
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