GETDEVICERANGE(3TSOL) Trusted Extensions Library Functions

NAME

getdevicerange - get the label range of a device

SYNOPSIS

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


#include <tsol/label.h>

blrange_t *getdevicerange(const char *device);

DESCRIPTION

The getdevicerange() function returns the label range of a user-
allocatable device.


If the label range is not specified for device, getdevicerange()
returns the default values of ADMIN_LOW for the lower bound and
ADMIN_HIGH for the upper bound of device.


From the command line, list_devices(1) can be used to see the label
range of device.

RETURN VALUES

The getdevicerange() function returns NULL on failure and sets errno.
On successful completion, it returns a pointer to a blrange_t
structure which must be freed by the caller, as follows:

blrange_t *range;
...
m_label_free(range->lower_bound);
m_label_free(range->upper_bound);
free(range);

ERRORS

The getdevicerange() function will fail if:

EAGAIN
There is not enough memory available to allocate the
required bytes. The application could try later.


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


ENOTSUP
Invalid upper or lower bound for device.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

list_devices(1), free(3C), libtsol(3LIB), m_label_free(3TSOL),
attributes(7)


Validating the Label Request Against the Printer's Label Range in
Solaris Trusted Extensions Developer's Guide

NOTES

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

July 20, 2007 GETDEVICERANGE(3TSOL)