Software to recover broken ZIP files

Hi,

We need to develop a software to recover broken ZIP archives. Software must scan given ZIP file and recreate a new fixed ZIP archive.

Fixed ZIP archive must contains all unbroken files from the source archive.

Software must scan given ZIP archive, locate file records, validate them by CRC and extract valid files into output

ZIP archive. It should work even if ZIP file is truncated and the central directory is missed.

You should implement two functions:

BOOL zipTest(LPCSTR zipName, CArray<CString,LPCSRTR>& arr, CString& errDescr);

returns TRUE is no error. arr array contains file names that could be saved.

returns FALSE in the case of error. errDescr must contain error description.

If ZIP archive is unbroken, zipTest should treat this situation is an error.

If it is impossible to recover even a single file, zipTest should return error as well.

BOOL zipRecover(LPCSTR zipName, LPCSTR outName, CString& errDescr);

This procedure should recover given zip file and construct output fixed ZIP archive under given name.

Both functions should display progress indicator (ZIP file may be very long).

You should implement these two functions (VC/MFC, code must be compatible with VC v6.0) and

simple test program.

No third party libraries/source codes are allowed (excepting for libraries or source codes which are absolutely free, ask me first to confirm).

## Deliverables

1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.

2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):

a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.

b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.

3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).

## Platform

Win32

C Programming Engineering MySQL PHP Software Architecture Software Testing

Project ID: #3092834

About the project