For all supported programming languages, the SO_CLUSTERCONNTYPE socket option returns a 32-bit value that is associated with a socket. For more information and for general coding guidelines for the SO_CLUSTERCONNTYPE socket option, see the following sources:

• z/OS Communications Server: IP Sockets Application Programming Interface Guide and Reference
  • C socket API
• z/OS UNIX System Services Programming: Assembler Callable Services Reference
  • Callable services descriptions (BPX1IOC or BPX4IOC)