If your developers download an Osrc.zip to include in a commercial product:
This is the standard way to upload a file via HTTP POST.
curl -X POST -F "file=@Osrc.zip" http://example.com/upload
Use built-in tools to peek inside without decompressing: Osrc.zip
unzip -l Osrc.zip # List contents
zipinfo Osrc.zip # More details (compression, dates)
unzip -v Osrc.zip # Verbose listing
Look for:
GitHub stores archived forks. Use:
filename:osrc.zip
Or search within the raw commit history using git clone --mirror.
If Osrc.zip contains source files (.c, .py, .js, .go, etc.): If your developers download an Osrc
If Osrc.zip contains no LICENSE file, default copyright law applies. In most jurisdictions, you have no right to copy, modify, or distribute it. Do not assume "open" in the filename means open source.