Manual Pages for UNIX Operating System command usage for man sbltos

Trusted Extensions Library Functions                sbltos(3TSOL)



NAME
     sbltos, sbsltos, sbcleartos -  translate  binary  labels  to
     canonical character-coded labels

SYNOPSIS
     cc [flag...] file... -ltsol [library...]


     #include 

     char *sbsltos(const m_label_t *label, const int len);


     char *sbcleartos(const m_label_t *clearance, const int len);


DESCRIPTION
     These  functions  translate  binary  labels  into  canonical
     strings  that are clipped to the number of printable charac-
     ters specified in len. Clipping is required if the number of
     characters  of  the  translated  string is greater than len.
     Clipping is done by truncating the label on the right to two
     characters  less  than the specified number of characters. A
     clipped indicator, "<-", is appended to  sensitivity  labels
     and  clearances.  The  character-coded  label  begins with a
     classification name separated with a single space  character
     from the list of words making up the remainder of the label.
     The binary labels must be of the  proper  defined  type  and
     dominated  by  the  process's  sensitivity label. A len of 0
     (zero) returns the entire string with no clipping.


     The sbsltos() function translates a binary sensitivity label
     into  a  clipped string using the long form of the words and
     the short form of the classification name. If  len  is  less
     than  the minimum number of characters (three), the transla-
     tion fails.


     The sbcleartos() function translates a binary clearance into
     a  clipped  string  using the long form of the words and the
     short form of the classification name. If len is  less  than
     the  minimum  number  of characters (three), the translation
     fails. The translation of a clearance might not be the  same
     as  the  translation of a sensitivity label. These functions
     use different tables of the label_encodings file which might
     contain different words and constraints.


     The calling process must have  PRIV_SYS_TRANS_LABEL  in  its
     set  of effective privileges to perform label translation on
     labels  that  dominate  the  current  process's  sensitivity



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Trusted Extensions Library Functions                sbltos(3TSOL)



     label.

  Process Attributes
     If the VIEW_EXTERNAL or VIEW_INTERNAL flags are  not  speci-
     fied, translation of ADMIN_LOW and ADMIN_HIGH labels is con-
     trolled by the label view process  attribute  flags.  If  no
     label view process attribute flags are defined, their trans-
     lation is controlled by the label  view  configured  in  the
     label_encodings  file.  A  value  of External specifies that
     ADMIN_LOW and ADMIN_HIGH labels are mapped to the lowest and
     highest  labels defined in the label_encodings file. A value
     of Internal specifies  that  the  ADMIN_LOW  and  ADMIN_HIGH
     labels  are  translated to the admin low name and admin high
     name strings specified in the label_encodings  file.  If  no
     such  names  are  specified,  the  strings  "ADMIN_LOW"  and
     "ADMIN_HIGH" are used.

RETURN VALUES
     These functions return a pointer to a  statically  allocated
     string that contains the result of the translation, or (char
     *)0 if the translation fails for any reason.

EXAMPLES
  sbsltos()
     Assume that a sensitivity label is:

       UN TOP/MIDDLE/LOWER DRAWER




     When clipped to ten characters it is:

       UN TOP/M<-



  sbcleartos()
     Assume that a clearance is:

       UN TOP/MIDDLE/LOWER DRAWER




     When clipped to ten characters it is:

       UN TOP/M<-







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Trusted Extensions Library Functions                sbltos(3TSOL)



FILES
     /etc/security/tsol/label_encodings

         The label encodings  file  contains  the  classification
         names,  words,  constraints,  and values for the defined
         labels of this system.


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Obsolete                    |
    |_____________________________|_____________________________|
    | MT-Level                    | Unsafe                      |
    |_____________________________|_____________________________|



     These functions are obsolete and retained for ease of  port-
     ing.  They  might  be  removed  in  a future Solaris Trusted
     Extensions release.  Use  the  label_to_str(3TSOL)  function
     instead.

SEE ALSO
     label_to_str(3TSOL), libtsol(3LIB), attributes(5), labels(5)

WARNINGS
     All these functions  share  the  same  statically  allocated
     string  storage.  They  are not MT-Safe. Subsequent calls to
     any of these functions will overwrite that string  with  the
     newly translated string.

NOTES
     The functionality described on this manual page is available
     only if the system is configured with Trusted Extensions.














SunOS 5.11          Last change: 20 Jul 2007                    3