execve not working for files within APE zipfiles?

[Cefan Daniel Rubin]

Howzits there cosmonauts!

It appears to me that the execve command cannot have been working for files within the containing APE zip.

https://github.com/jart/cosmopolitan/blob/master/libc/proc/execve.c#L75 has the following:

      if (0 && _weaken(__zipos_parseuri) &&

          (_weaken(__zipos_parseuri)(prog, &uri) != -1)) {

...

      }

which renders the condition false (notice the 0 &&). Not sure how the corresponding tests still work. Was this intentional?

APE files could provide an interesting way to create portable multicall binaries composed of different commands. I want to put APE curl inside a modified APE QuickJS binary. But I think the above stands in the way of this kind of use.

Should I not be thinking of this sort of malarkey? Cheers all!

 - Cefan

[Justine Tunney]

zipos execve() support was attempted in the past, but it's a really difficult problem, both to get stable and be async-signal-safe. Currently I don't have need of it. We aren't able to do it well yet, so we don't do it. Contributions are welcome to anyone qualified who wants to take it on.

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[Cefan Daniel Rubin]

Thank you for the explanation Justine and for your efforts! Happy weekend all.