const iovlen_t = @FieldType(c.msghdr_const, "iovlen")
This is either usize or u32. Since, either is fine, let's use the same addBuf function for both writing to a file and sending network messages.
addBuf
4958
This is either usize or u32. Since, either is fine, let's use the same
addBuffunction for both writing to a file and sending network messages.