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Problem Report 2283 Details

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Report 2283 Actions

    Problem Report Number 2283
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Rejected (REJ)
    Problem Resolution ID REJ.X.0643
    Raised 2003-09-24 04:44
    Updated 2003-09-30 02:40
    Published 2003-09-30 02:40
    Product Standard Internationalised System Calls and Libraries Extended V2 (UNIX 98)
    Certification Program The Open Brand certification program
    Test Suite VSX4 version 4.5.4
    Test Identification XOPEN.os/genuts/getpass
    Specification System Interfaces and Headers Issue 5
    Location in Spec Volume 1, page 353
    Problem Summary XOPEN.os/genuts/getpass expects exactly {PASS_MAX} bytes returned, not
    "at most {PASS_MAX} bytes" returned.
    Problem Text The problem with these tests is they expect getpass to return exactly
    {PASS_MAX} bytes.

    According to the standard:

    Upon successful completion, getpass() returns a pointer to a
    null-terminated string of at most {PASS_MAX} bytes that were
    read from the terminal device.

    The phrase "at most {PASS_MAX} bytes" allows for any number of bytes not
    exceeding PASS_MAX bytes to be returned, therefore when getpass returns
    8, it is within the requirements of the spec.
    Test Output ************************************************************************
    ****************************************
    /tset/XOPEN.os/genuts/getpass/T.getpass 1 Failed

    Test Description:
    If a string of not more than PASS_MAX characters is typed into
    /dev/tty before a newline or EOF character is entered, it will
    be
    returned, NULL terminated, by getpass().

    Test Strategy:
    OPEN and initialise terminal file (/dev/tty) and loop back file
    FOR terminating characters NL and EOF:
    CREATE process pair
    CHILD process will
    SLEEP for 2 seconds
    SET timeout for WAITTIME/2
    WRITE PASS_MAX characters to loop back file using write()
    WRITE terminating character to loop back file using
    write()
    PARENT process will
    SET timeout for WAITTIME/2
    CALL getpass("")
    VERIFY that getpass() returns pointer to data written,
    NULL
    terminated

    Test Information:
    getpass("") did not return PASS_MAX chars of password entered
    before new
    line
    Expected string:
    "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUV"
    Observed string: "ABCDEFGH"
    getpass("") did not return PASS_MAX chars of password entered
    before EOF
    Expected string:
    "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUV"
    Observed string: "ABCDEFGH"


    ************************************************************************
    ****************************************


    ************************************************************************
    ****************************************
    /tset/XOPEN.os/genuts/getpass/T.getpass 2 Failed

    Test Description:
    If a string of more than PASS_MAX characters is typed into
    /dev/tty
    before a newline or EOF character is entered, the first PASS_MAX
    characters, NULL terminated, will be returned by getpass().

    Test Strategy:
    OPEN and initialise terminal file (/dev/tty) and loop back file
    FOR terminating characters NL and EOF:
    CREATE process pair
    CHILD process will
    SLEEP for 2 seconds
    SET timeout for WAITTIME/2
    WRITE (PASS_MAX+1) characters to loop back file using
    write()
    WRITE terminating character to loop back file using
    write()
    PARENT process will
    SET timeout for WAITTIME/2
    CALL getpass("")
    VERIFY that getpass() returns pointer to first PASS_MAX
    characters written, NULL terminated

    Test Information:
    getpass("") did not return PASS_MAX chars of password entered
    before new
    line
    Expected string:
    "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUV"
    Observed string: ""
    getpass("") did not return PASS_MAX chars of password entered
    before EOF
    Expected string:
    "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
    CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP

    QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUV"
    Observed string: "ABCDEFGH"


    ************************************************************************
    ****************************************

    Review Information

    Review Type TSMA Review
    Start Date 2003-09-24 04:44
    Last Updated 2003-09-24 22:23
    Completed 2003-09-24 22:23
    Status Complete
    Review Recommendation Rejected (REJ)
    Review Response I disagree with the submitter's interpretation of the specification.

    The use of "at most" here is a requirement that getpass() must never
    return more than PASS_MAX bytes, even if more than that were read from
    the terminal. Clearly if PASS_MAX or more bytes are read from the
    terminal then getpass() must return the first PASS_MAX bytes and discard
    the rest, as expected by the tests.

    It appears that the value of PASS_MAX has been incorrectly configured on
    this system - since getpass() returns at most 8 bytes, the value of
    PASS_MAX should be 8.

    Review Type SA Review
    Start Date 2003-09-24 21:23
    Last Updated 2003-09-25 01:54
    Completed 2003-09-25 01:54
    Status Complete
    Review Resolution Rejected (REJ)
    Review Conclusion The SA interpretation is that the use of "at most" in the specification
    is a requirement that getpass() must never return more than PASS_MAX
    bytes, even if more than that were read from the terminal. Clearly if
    PASS_MAX or more bytes are read from the terminal then getpass() must
    return the first PASS_MAX bytes and discard the rest, as expected by
    the tests.

    It appears that the value of PASS_MAX may have been incorrectly
    configured on this system - since getpass() returns at most 8 bytes,
    the value of PASS_MAX should be 8.

    Problem Reporting System Options:

     

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