Open System Services System Calls Reference Manual (G06.25+, H06.03+)

System Functions (s and S) setsockopt(2)

[EFAULT] A user-supplied memory buffer cannot be

accessed.

[EINVAL] One of the following conditions exists:

• The speciﬁed option is not valid at the speciﬁed socket level.

• The socket has been shut down.

[ENOBUFS] There was not enough buffer space available to complete the call. A retry at a

later time might succeed.

[ENOMEM] Required memory resources were not available. A retry at a later time might

succeed.

[ENOPROTOOPT]

The speciﬁed option is not supported by the protocol used by the socket.

[ENOTSOCK] The socket parameter does not refer to a socket.

RELATED INFORMATION

Functions: bind(2), endprotoent(3), getprotobynumber(3), getprotoent(3), getsockopt(2), set-

protoent(3), socket(2) socketpair(2).

STANDARDS CONFORMANCE

The HP implementation does not return the errno value [ENOSR].

The following are HP extensions to the XPG4 speciﬁcation:

• Nonzero values other than 1 can be used to set Boolean options.

• The SO_DONTROUTE and SO_REUSEPORT options are supported.

• The errno value [ECONNRESET] can be returned when the transport-provider process

is unavailable.

• Some of the documented uses of the errno value [ENOPROTOOPT] are not described in

the speciﬁcation.

527186-003 Hewlett-Packard Company 7−43