| Key: |
DERBY-121
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| Type: |
Bug
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| Status: |
Closed
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| Resolution: |
Fixed
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| Priority: |
Minor
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| Assignee: |
A B
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| Reporter: |
Lynh Nguyen
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| Votes: |
0
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| Watchers: |
0
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If you were logged in you would be able to see more operations.
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File Attachments:
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Environment:
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The is a bit shift typo in Network Server reading clob/blob data size
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| Resolution Date: |
04/Jun/05 04:30 PM
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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 a lob if its length requires at least 24 bits--i.e. if the lob has a length of at least 2^24 bytes.
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Description
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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 a lob if its length requires at least 24 bits--i.e. if the lob has a length of at least 2^24 bytes. |
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Network Server reading blob/clob data size
