Since there is no way to mark parameters as [potentially] unused in
standard C and when using MSVC compiler, use the widely accepted
cast-to-void approach instead.
All the compilers should provide the header file by now. Remove `tr_isBool`
sanity checks along the way as compiler should guarantee that bool (_Bool)
values are 0 or 1 and nothing else.
This way all the qualifiers (`const`, `volatile`, `mutable`) are grouped
together, e.g. `T const* const x` vs. `const T* const x`. Also helps reading
types right-to-left, e.g. "constant pointer to constant T" vs. "constant
pointer to T which is constant".
There're places where manual intervention is still required as uncrustify
is not ideal (unfortunately), but at least one may rely on it to do the
right thing most of the time (e.g. when sending in a patch).
The style itself is quite different from what we had before but making it
uniform across all the codebase is the key. I also hope that it'll make the
code more readable (YMMV) and less sensitive to further changes.
This ensures proper network errors formatting on Windows.
Also, disable IP_TOS socket option modification attempts on Windows
since it's not supported there and is considered deprecated: "Do not
use. Type of Service (TOS) settings should only be set using the
Quality of Service API" (c) MSDN. Using QoS API is a subject for
separate commit(s).
1. add the option the code to be used under GPLv2 or GPLv3; previously only GPLv2 was allowed
2. add the "proxy option" as described in GPLv3 so we can add future licenses without having to bulk-edit everything again :)
3. remove the awkward "exception for MIT code in Mac client" clause; it was unnecessary and confusing.