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From "A B (JIRA)" <derby-...@db.apache.org>
Subject [jira] Assigned: (DERBY-121) Network Server reading blob/clob data size
Date Thu, 02 Jun 2005 18:28:54 GMT
     [ http://issues.apache.org/jira/browse/DERBY-121?page=all ]

A B reassigned DERBY-121:
-------------------------

    Assign To: A B

> 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
>     Assignee: A B
>     Priority: Minor
>  Attachments: derby-121_2.patch, derby-121_2.stat
>
> 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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