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Problem Report 0172 Details

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    Problem Report Number 0172
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.0172
    Raised 1994-07-01 08:00
    Updated 2003-03-13 08:00
    Published 1994-07-07 08:00
    Product Standard Internationalised System Calls and Libraries (XPG4)
    Certification Program The Open Brand certification program
    Test Suite VSX4 version 4.3.2
    Test Identification XPG4.os/procenv/confstr 1,2,3,4
    Problem Summary TSD4.172 .P The confstr() test cases 1,2,3 and 4 assume that _CS_PATH has a configuration defined value, however, according to the XSH4 confstr() and <unistd.h> definitions, this is only guaranteed if POSIX.2 ...
    Problem Text
    .P
    The confstr() test cases 1,2,3 and 4 assume that _CS_PATH has a configuration
    defined value, however, according to the XSH4 confstr() and <unistd.h>
    definitions, this is only guaranteed if POSIX.2 is supported.
    The relevant references follow.
    .sp
    confstr(), Page 72 - Systems Interfaces and Headers, Issue 4

    "If name does not have a configuration-defined value, confstr() returns
    zero and leaves errno unchanged."

    <unistd.h>, Page 616 - Systems Interfaces and Headers, Issue 4

    The following symbolic constant is defined for the confstr() function:

    "_CS_PATH If the ISO POSIX-2 DIS is supported, this is the value for the
    PATH environment variable that finds all standard utilities.
    Otherwise the meaning of this value is unspecified."

    .P
    Because the current implementation does not yet support POSIX.2, the meaning
    of the value _CS_PATH is unspecified and has no relevancy in this case.
    This is acceptable behavior according to XSH4 and as described in the
    confstr() definition, and under this condition, the implementation should
    return 0 and not set errno, which our implementation does. The tests do not
    allow for this option. The test cases are all preceeded by the same common
    test preparation routine test_prepare(). Within test_prepare(), The first
    function call is to the function tb_confstr() which sets errno to zero and
    the initial call to the system function confstr() which in this implemenation
    returns zero and does not alter errno. On returning from the routine
    tb_confstr(), the only conditional test is for the return code of zero and
    no test for the unchanged errno. The test results which for test case 1,2,3
    are Uninitiated and for test case 4 is Unresolved are the result of the
    test_prepare() failing. The test cases should allow and test for the case where
    name does not have a configuration-defined value. The test result for these
    test cases if there is no configuration-defined value for _CS_PATH should be
    unsupported.


    Test Output


    ************************************************************************
    /tset/XPG4.os/procenv/confstr/T.confstr 1 Uninitiated

    Test Description:
    When len is greater than zero and name is set to _CS_PATH, then a call
    to confstr() places upto the first len-1 bytes of a string into the
    buffer buf and terminates this with a null byte. If the
    implementation supports POSIX.2, the string contains the value for a
    PATH environment variable that finds all standard utilities
    Testing Requirements: Test with values of len less than, equal to and
    greater than the length of the returned value.

    Test Information:
    confstr(_CS_PATH,buf,4096) failed in setup
    ************************************************************************

    ************************************************************************
    /tset/XPG4.os/procenv/confstr/T.confstr 2 Uninitiated

    Test Description:
    When len is set to 0, buf is set to NULL, and name is set to _CS_PATH,
    then a call to confstr() returns an integer value of the size required
    for the buffer needed to contain the entire configuration defined
    value.

    Test Information:
    confstr(_CS_PATH,buf,4096) failed in setup
    ************************************************************************
    ************************************************************************
    /tset/XPG4.os/procenv/confstr/T.confstr 3 Uninitiated

    Test Description:
    A call to confstr() returns an integer value of the size required for
    the buffer needed to contain the entire configuration defined value.

    Test Information:
    confstr(_CS_PATH,buf,4096) failed in setup
    ************************************************************************
    ************************************************************************
    /tset/XPG4.os/procenv/confstr/T.confstr 4 Unresolved

    Test Description:
    When the name argument does not specify a valid value, then a call to
    confstr() sets errno to EINVAL and returns zero.

    Test Information:
    path tracing error: path counter 0, expected 1
    ***********************************************************************


    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    This is accepted as a test suite fault and it is recommended that a waiver
    be granted on the grounds of a test suite deficiency.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Test Suite Deficiency (TSD)
    Review Conclusion
    This is an Agreed Test Suite Deficiency.

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