fix a couple sockfds to be fd_t rather than i32
fix a couple sockfds to be fd_t rather than i32

Using i32 causes compile errors on Windows because it uses *c_void rather than i32 for it's fd_t type.

raulgrell/zig,zig-lang/zig,zig-lang/zig,zig-lang/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig