Open System Services System Calls Reference Manual (G06.28+, H06.05+)

System Functions (f - i) getsockopt(2)
STANDARDS CONFORMANCE
The HP implementation does not:
• Implement the SO_LINGER option for AF_UNIX sockets.
• Return the errno value [ENOSR].
The following are HP extensions to the XPG4 specification:
• The errno value [ECONNRESET] can be returned when the transport provider process
is unavailable.
• The SO_REUSEPORT option is supported.
527186-007 Hewlett-Packard Company 3−125