On Fri, 31 Mar 2023 17:38:02 GMT, Lance Andersen <[email protected]> wrote:
>> Eirik Bjorsnos has updated the pull request incrementally with four
>> additional commits since the last revision:
>>
>> - Document the structure of the 'good' ZIP
>> - Use the "Validate that.." comment style
>> - Document the ByteBuffer with a comment
>> - Use ByteBuffer when manipulating multi-byte fields
>
> test/jdk/java/util/zip/ZipFile/CorruptedZipFiles.java line 192:
>
>> 190: /*
>> 191: * Validate that a ZipException is thrown when the 'End of Central
>> Directory'
>> 192: * (END) header has a CEN offset incoherent with the position
>> calculated
>
> Not sure _incoherent_ is the best term.
>
> perhaps something along the lines:
>
> header contains an invalid CEN Directory starting offset.....
I remember my struggles trying to write this one in the first place. The code
says:
long cenpos = end.endpos - end.cenlen; // position of CEN table
// Get position of first local file (LOC) header, taking into
// account that there may be a stub prefixed to the zip file.
locpos = cenpos - end.cenoff;
if (locpos < 0) {
zerror("invalid END header (bad central directory offset)");
}
```
so I ended up trying to express this equation in words, which is maybe not so
successful. I don't see _incoherent_ as the main problem, if it was we could
just use _inconsistent_.
Do you have a better concrete suggestion?
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/12563#discussion_r1154844552
