Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

System Functions (a - d) connect(2)

[ENETDOWN]

The local interface used to reach the destination is down.

[ENETUNREACH]

No route to the network or host is present.

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

later time may succeed.

[ENOENT] The socket is in the AF_UNIX domain and one of the following conditions

exists:

• A component of the pathname speciﬁed in the sockaddr structure does

not name an existing ﬁle.

• The sockaddr structure speciﬁes an empty string as a pathname.

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

succeed.

[ENOTDIR] The socket is in the AF_UNIX domain and a component of the pathname

speciﬁed in the sockaddr structure is not a directory.

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

[EPERM] One of the following conditions exist:

• The calling process does not have appropriate privileges.

• The program attempted an operation on a SEEP-protected ﬁleset. Valid

for J06.15 and later J-series RVUs, and H06.26 and later H-series RVUs.

[EPROTOTYPE]

The speciﬁed address has a different type than that of the socket bound to the

speciﬁed peer address.

[ETIMEDOUT]

The attempt to connect timed out during connection establishment.

[EWOULDBLOCK]

The socket is marked nonblocking and the connection cannot be immediately

completed. The application program can select the socket for writing during the

connection process. The connection request will take place asynchronously.

RELATED INFORMATION

Functions: accept(2), bind(2), getsockname(2), listen(2), select(2), send(2), sendmsg(2),

sendto(2), socket(2), spt_connectx(2).

STANDARDS CONFORMANCE

The XPG4 speciﬁcation allows certain behavior to be implementer-deﬁned. The following are

choices of the HP implementation:

• The HP implementation does not return the errno values [ENOSR] or [EOPNOTSUPP].

The following are HP extensions to the XPG4 speciﬁcation:

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

or OSS Local Server 2 process is unavailable.

The use of this function with the POSIX User Thread Model library conforms to the following

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