Home • About Us • A-Z Index • Search * Contact Us • Register • Login • Press • Shop

The Open Brand -- Problem Reporting and Interpretations System

Problem Report 1257 Details

Help Show help | Quick Search | Submit a Test Suite Support Request | Click here to view your privileges

This page provides all information on Problem Report 1257.

Report 1257 Actions

    Problem Report Number 1257
    Submitter's Classification Specification problem
    State Resolved
    Resolution Rejected (REJ)
    Problem Resolution ID REJ.X.0459
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published null
    Product Standard Sockets (UNIX 95)
    Certification Program The Open Brand certification program
    Test Suite VSU version 4.0.2
    Test Identification Sockets/shutdown 6
    Problem Summary PG4U.00006 ENOTCONN should be removed from the shutdown() spec
    Problem Text
    Shutting down a socket without a connection is perfectly
    legitimate in many situations. It may be used to specify the
    socket is to be used for half-duplex operation. This can
    be done before actually establishing a connection (in case of
    TCP). It is also a common practice to call shutdown after
    detecting an error in a socket operation which again may be
    before establishing a connection.

    Also since the shutdown operation is irreversible, it will not
    cause any harm to call shutdown multiple times.

    Therefore it does not make any sense to consider the above
    cases as error cases. Subsequently it does not make sense to
    set errno to ENOTCONN in these legitimate cases.

    It is the author's opinion, ENOTCONN should be removed from the
    specification. At most ENOTCONN should be considered only
    as an optional error value.
    Test Output
    If the implementation supports a communications domain and a
    socket type: ENOTCONN in errno and return -1 on a call to int
    shutdown(int socket, int how) when the socket is not connected.

    JOURNAL FILE OUTPUT:
    --------------------

    TEST: AF_INET SOCK_STREAM
    PREP: Create socket
    TEST: shutdown unconnected socket for read
    TEST: Return value
    ERROR: shutdown call succeeded unexpectedly, returned 0
    FAIL

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    While the submitter's argument may have merit, this is not a grey
    area in the spec. It is clear that shutdown() should fail with
    ENOTCONN if called on an unconnected socket.

    This requirement is also in the POSIX sockets spec. We believe
    it would be ill advised to change the X/Open spec in a manner
    distancing itself from POSIX.

    We recommend this request be refused.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Rejected (REJ)
    Review Conclusion
    This request is refused. The applicant may wish to resubmit and request
    a Temporary. Waiver on the grounds of a minor fault on the system being tested.

    Problem Reporting System Options:

     

    Back   

Contact the Certification Authority