2.7.3: Store only is not compatible with 7-zip/macOS

[bcse]

Here's what I've done.

1. Download minizip 2.8.0 release.

2. Build with cmake

cmake . -DBUILD_TEST=ON
cmake --build .

3. Create a store only zip

./minizip -0 store_only.zip test

4. Create a compressed zip

./minizip -9 best_compression.zip test

5. The store_only.zip can't be correctly extracted by 7-zip or macOS built-in archiver. But best_compression.zip works fine. And store_only.zip can be extracted with minizip itself.

--

Here is the result of ./minizip -l store_only.zip

Minizip 2.8.0 - https://github.com/nmoinvaz/minizip
---------------------------------------------------
-l store_only.zip
      Packed     Unpacked Ratio Method   Attribs Date     Time  CRC-32     Name
      ------     -------- ----- ------   ------- ----     ----  ------     ----
           0            0    0% Stored  81a40080 11-25-18 09:59 00000000   empty.txt
        1988            0    0% Stored  81a40080 11-25-18 09:59 26cb60bd   ia.crt
        2114            0    0% Stored  81a40080 11-25-18 09:59 fe5f5542   ca.crt
         570            0    0% Stored  81a40080 11-25-18 09:59 a1cac1c6   test.h
        5749            0    0% Stored  81a40080 11-25-18 09:59 f6dcf032   ia.p12
...

And here is the result of ./minizip -l test.zip
test.zip is created by 7-zip with store only setting.

Minizip 2.8.0 - https://github.com/nmoinvaz/minizip
---------------------------------------------------
-l test.zip
      Packed     Unpacked Ratio Method   Attribs Date     Time  CRC-32     Name
      ------     -------- ----- ------   ------- ----     ----  ------     ----
        2114         2114  100% Stored  81a48020 11-25-18 09:59 fe5f5542   ca.crt
        3243         3243  100% Stored  81a48020 11-25-18 09:59 f5027753   ca.key
        2114         2114  100% Stored  81a48020 11-25-18 09:59 fe5f5542   cacert.pem
           0            0    0% Stored  81a48020 11-25-18 09:59 00000000   empty.txt
           0            0    0% Stored  41ed8010 11-25-18 09:59 00000000   fuzz/
...

Isn't it abnormal that store_only.zip's unpacked size is 0?

[bcse]

P.S. 2.7.2 is the latest compatible version. 2.7.3 introduces this issue.

[nmoinvaz]

That should be fixed now in dev. Thanks for reporting it.