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Re: File integrity checkerby no_slogan (Deacon) |
on Aug 24, 2017 at 16:21 UTC ( [id://1197942]=note: print w/replies, xml ) | Need Help?? |
Would like to check the integrity of the file before attempting uncompression or extraction.There's not really any way to do this. Zip and gzip store checksums of the uncompressed contents; the -t options actually uncompress the file, calculate the checksum, and throw away the contents. You could do the same thing in your program, or you could uncompress to a tempfile and delete it if the checksum comes out bad. Edit: There's a section about integrity checking in the Archive::Zip::FAQ.
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