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Comment by yjftsjthsd-h

8 days ago

Hey, this is also my interest. I was just looking into whether it was possible to e.g. build an archive extractor that runs like a normal program but does the actual extraction completely in wasm. Unfortunately, AFAICT it's possible but requires custom code; you can't (yet, I hope) just compile unzip/libarchive/whatever with CC=wasicompiler and get a sandboxed binary. But we're getting close.

You should be able to do exactly that though? Why do you think you can't?

You will of course need to include a lot of support code to provide the relevant syscalls and otherwise emulate the environment that the code expects. But there are plenty of examples of that at this point.

  • Yeah, it's all that support code that I don't want to write. I want to (roughly) just

      tar -xf unzip.tar.gz && cd unzip
      ./configure CC=wasmcc
      make
      wasmruntime unzip.wasm testfile.zip