Question

What are the steps to implement that feature in 1) Windows and 2) in Mac? I went through these, still I am not very clear! I am using C/C++ in Windows and in Mac. So, Win API or Mac API will be enough.

I am also confused because Mac Firefox has also has a option “Use system proxy settings”, which is not present in Windows Firefox.

These are some similar questions:

LINK-1: Programmatically detect system-proxy settings on Windows XP with Python

LINK-2: How does Windows actually detect LAN (proxy) settings when using Automatic Configuration

According the this Wiki WPAD article, we should traverse in this sequence:

• http://wpad.branch.example.com/wpad.dat
• http://wpad.example.com/wpad.dat
• http://wpad.com/wpad.dat

But LINK-1 says “GET http://wpad/wpad.dat” is enough. Which one should I follow?

Answer 1

I using librproxy. That solved this requirement.