So I have a condition where I will eventually setuid to other users (think root launching the httpd server as apache)

Obviously I can check the perms after I drop down in permissions, but that's not the idea here. I want to alert the admin before they get nasty failures, and potentially remedy the situation

I would like to check to see if my target user has write/read permissions for a specific set of files. And if not, then change things before I switch users.

Is there a perl way to do this?

Here is what I'm thinking:

if (! -w $file $user) {
    #do permission-ey things to fix that
}

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In reply to How do I check if another user can access a file? by mtnboy

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