exit code about ipconflict

[fgiuba]

Yes, I think this is a good idea.

So far we used exit code 0 for any valid result (conflict/no-conflict) and exit code 1 for invalid parameters. I would prefer to do as follow:

• 0 - No conflict.
• 1 - One or more conflicts found.
• 2 - Invalid parameters.

[ciroiriarte]

There are some conventions for comparison tools, maybe it's a little counterintuitive given we're "looking for conflicts"

There are conventions for what sorts of status values certain programs should return. The most common convention is simply 0 for success and 1 for failure. Programs that perform comparison use a different convention: they use status 1 to indicate a mismatch, and status 2 to indicate an inability to compare. Your program should follow an existing convention if an existing convention makes sense for it.

If I interpret that correctly, it should be the other way around -_-'

Eitherway, if it's documented I think it will effective.

Ref: https://www.gnu.org/software/libc/manual/html_node/Exit-Status.html

[fgiuba]

I agree, let's follow the existing conventions. So, exit status will be:

• 0 - One or more conflicts found.
• 1 - No conflict found.
• 2 - Aborted or invalid input.