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2.4.12 FileEaInformation

This information class is used to query for the size of the extended attributes (EA) for a file. An extended attribute is a piece of application-specific metadata that an application can link with a file that is not part of the file's data. For more information about extended attributes, see [MS-CIFS] section 2.2.1.2.

A FILE_EA_INFORMATION data element, defined as follows, is returned by the server.


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EaSize

EaSize (4 bytes):  A 32-bit unsigned integer that contains the combined length, in bytes, of the extended attributes (EA) for the file.

This operation returns a status code as specified in section 2.2. Upon success, the status code returned by the function that processes this file information class is STATUS_SUCCESS. The most common error codes are listed in the following table.

Error code

Meaning

STATUS_INFO_LENGTH_MISMATCH

0xC0000004

The specified information record length does not match the length that is required for the specified information class.