This makes the kernel's state agree with our handler pointer.
SSL may need to suspend selecting for reading to write
something, e.g. with renegotiation.
libratbox r25223
Use RB_SOCKADDR_HAS_SA_LEN instead of SOCKADDR_IN_HAS_LEN
which is only defined inside libratbox.
This fixes creating own sockaddr structs in other programs
using SET_SS_LEN, then passing them to libratbox, on
4.4BSD based systems.
