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Man Pages


Manual Reference Pages  -  MAC_FREE (3)

NAME

mac_free - free MAC label

CONTENTS

Library
Synopsis
Description
Return Values
See Also
Standards
History
Bugs

LIBRARY


.Lb libc

SYNOPSIS


.In sys/mac.h int mac_free mac_t label

DESCRIPTION

The mac_free function frees the storage allocated to contain a
.Vt mac_t .

RETURN VALUES

The mac_free function always returns 0. WARNING: see the notes in the BUGS section regarding the use of this function.

SEE ALSO

mac(3), mac_get(3), mac_prepare(3), mac_set(3), mac_text(3), posix1e(3), mac(4), mac(9)

STANDARDS

POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion of the draft continues on the cross-platform POSIX.1e implementation mailing list. To join this list, see the
.Fx POSIX.1e implementation page for more information.

HISTORY

Support for Mandatory Access Control was introduced in
.Fx 5.0 as part of the TrustedBSD Project.

BUGS

POSIX.1e specifies that mac_free will be used to free text strings created using mac_to_text(3). Because
.Vt mac_t is a complex structure in the TrustedBSD implementation, mac_free is specific to
.Vt mac_3 , and must not be used to free the character strings returned from mac_to_text. Doing so may result in undefined behavior.
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