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getdevicerange(3TSOL)

Name | Synopsis | Description | Return Values | Errors | Attributes | See Also | Notes

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(5) 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(5)

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.

Name | Synopsis | Description | Return Values | Errors | Attributes | See Also | Notes