SOCKETS(POSIX) compatibility to UNIX applications
The SOCKETS(POSIX) interface implementation complies with the ReliantUNIX implementation and has been enhanced by the support of IPv6. This ensures that SOCKETS(POSIX) applications are source-compatible to UNIX to a large degree. The following restrictions apply:
The RAW socket interface is not supported.
Out-of-band data is not supported.
Wait points for all blocking operations on POSIX file descriptors are located in the (privileged) POSIX subsystem and are therefore inaccessible to the application programmer.
SOCKETS(POSIX) compatibility to SOCKETS(BS2000) applications
SOCKETS(BS2000) applications are not fully compatible to applications developed with the SOCKETS(POSIX) functions.
XTI(POSIX) Compatibility to UNIX applications
The following restrictions apply for XTI:
Sending expedited data is not supported.
Only the transport services for TCP/IP and UDP/IP are supported.
IPv6 is not supported.