Проект OpenNet: MAN getuserrange (3) Библиотечные вызовы (FreeBSD и Linux)

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getuserrange (3)

>> getuserrange (3) ( Solaris man: Библиотечные вызовы )

NAME

getuserrange - get the label range of a user

SYNOPSIS

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

#include <tsol/label.h>

m_range_t *getuserrange(const char *username);

DESCRIPTION

The getuserrange() function returns the label range of username. The lower bound in the range is used as the initial workspace label when a user logs into a multilevel desktop. The upper bound, or clearance, is used as an upper limit to the available labels that a user can assign to labeled workspaces.

The default value for a user's label range is specified in label_encodings(4). Overriding values for individual users are specified in user_attr(4).

RETURN VALUES

The getuserrange() function returns NULL if the memory allocation fails. Otherwise, the function returns a structure which must be freed by the caller, as follows:

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

ERRORS

The getuserrange() function will fail if:

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 TYPE ATTRIBUTE VALUE

Interface Stability See below.

MT-Level

The getuserrange() function is Committed for systems that implement the Defense Intelligence Agency (DIA) MAC policy of label_encodings(4). Other policies might exist in a future release of Trusted Extensions that might make obsolete or supplement label_encodings.