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 Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
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 label_to_str 3TSOL "20 Jul 2007" "SunOS 5.11" "Trusted Extensions Library Functions"
 NAME
label_to_str - convert labels to human readable strings

 SYNOPSIS


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






#include <tsol/label.h>

int label_to_str(const m_label_t *label, char **string, 
 const m_label_str_t conversion_type, uint_t flags);




 DESCRIPTION

label_to_str() is a simple function to convert various mandatory label
types to human readable strings.


label is the mandatory label to convert. string points to memory
that is allocated by label_to_str() that contains the converted string.
The caller is responsible for calling free(3C) to free allocated memory.


The calling process must have mandatory read access to the resulting human
readable string. Or the calling process must have the sys_trans_label
privilege.


The conversion_type parameter controls the type of label conversion. Not
all types of conversion are valid for all types of label:


M_LABEL


Converts label to a human readable string based on its type.





M_INTERNAL


Converts label to an internal text representation that is safe for
storing in a public object. Internal conversions can later be parsed to their
same value.





M_COLOR


Converts label to a string that represents the color name that the
administrator has associated with the label.





PRINTER_TOP_BOTTOM


Converts label to a human readable string that is appropriate for use as
the top and bottom label of banner and trailer pages in the Defense
Intelligence Agency (DIA) encodings printed output schema.





PRINTER_LABEL


Converts label to a human readable string that is appropriate for use as
the banner page downgrade warning in the DIA encodings printed output schema.





PRINTER_CAVEATS


Converts label to a human readable string that is appropriate for use as
the banner page caveats section in the DIA encodings printed output schema.





PRINTER_CHANNELS


Converts label to a human readable string that is appropriate for use as
the banner page handling channels in the DIA encodings printed output schema.





The flags parameter provides a hint to the label conversion:


DEF_NAMES


The default names are preferred.





SHORT_NAMES


Short names are preferred where defined.





LONG_NAMES


Long names are preferred.




 RETURN VALUES

Upon successful completion, the label_to_str() function returns 0.
Otherwise, -1 is returned, errno is set to indicate the error and the
string pointer is set to NULL.

 ERRORS

The label_to_str() function will fail if:


EINVAL


Invalid parameter.





ENOTSUP


The system does not support label translations.





ENOMEM


The physical limits of the system are exceeded by size bytes of memory which
cannot be allocated.




 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:







ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilitySee below.
MT-LevelMT-Safe
StandardSee below.




The label_to_str() function is Committed. The returned string is
Not-an-Interface and is dependent on the specific label_encodings file.
The conversion type INTERNAL is Uncommitted, but is always accepted as
input to str_to_label(3TSOL).


Conversion types that are relative to the DIA encodings schema are Standard.
Standard is specified in label_encodings(4).

 SEE ALSO

free(3C), libtsol(3LIB), str_to_label(3TSOL),
label_encodings(4), attributes(5), labels(5)


Using the label_to_str Function in Solaris Trusted Extensions
Developer's Guide

 WARNINGS

A number of these conversions rely on the DIA label encodings schema. They
might not be valid for other label schemata.

 NOTES

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