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Status Future consideration
Workspace IBM i
Created by Guest
Created on Feb 24, 2018

QzipUnzip to return comment stored with QzipZip

The QzipZip()--Compress Files and Directories API allows you to store a 512 byte comment in the ZIP00100 options format.

The QzipUnzip()--Decompress an archive file API however does not include this information in the corresponding UNZIP100 options format. I therefore suggest the comment information (data and length) is added to the UNZIP100 options format.


Use Case:

Company A has stored processing information i the comment options attribute of an archive using the QzipZip API.

Company B needs to access this operational information for further processing purposes when decompressing the archive using the QzipUnzip API.


Idea priority Medium
  • Guest
    Jun 24, 2020

    IBM agrees with the request and a solution appears to be desirable and feasible. IBM intends to provide a solution. However, IBM's plans may change and no commitment is made that a solution will be provided.

  • Guest
    Mar 20, 2018

    Basically I'm talking about the QzipUnzip API being able to retrieve the comment that the QzipZip API is able to store with the archive.

  • Guest
    Mar 16, 2018

    I suspect you are looking for a way to interrogate a ZIP file to get content information and metadata.

    The API you are referring to extracts ZIP file contents.

  • Guest
    Feb 28, 2018

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - Application Development
    Operating system - IBM i
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - IFS (Integrated File System) and Servers
    Operating system - IBM i
    Source - None