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Information processing apparatus and recording medium

  • US 20060020645A1
  • Filed: 07/19/2005
  • Published: 01/26/2006
  • Est. Priority Date: 07/21/2004
  • Status: Active Grant
First Claim
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1. An information processing apparatus that processes an archive file in an archive file format in which one or more files converted into block data items are merged into a single file, comprising:

  • an update instructing part to issue an update instruction to update a desired block data item of the block data items contained in the archive file;

    an information protecting part to protect a predetermined data item contained in the archive file according to the update instruction from the update instructing part;

    a reading part to convert back the desired block data item contained in the archive file specified by the update instructing part so as to read a content of an original file of the desired block data item;

    a first updating part to update the content of the original file read by the reading part;

    a first writing part to convert the original file containing the content updated by the first updating part into an updated block data item so as to write the updated block data item into the archive file;

    a second updating part to update a content of the predetermined data item protected by the information protecting part based on the content of the original file updated by the first updating part; and

    a second writing part to write the predetermined data item containing the content updated by the second updating part into the archive file into which the updated block data item is written by the first writing part.

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