NAME
mac_free — free MAC label
LIBRARY
Standard C Library (libc, −lc)
SYNOPSIS
#include <sys/mac.h>
int
mac_free(mac_t label);
DESCRIPTION
The mac_free() function frees the storage allocated to contain a 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), 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 FreeBSD POSIX.1e implementation page for more information.
HISTORY
Support for Mandatory Access Control was introduced in FreeBSD 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 mac_t is a complex structure in the TrustedBSD implementation, mac_free() is specific to that type, and must not be used to free the character strings returned from mac_to_text(). Doing so may result in undefined behavior, including application failure.
BSD December 21, 2001 BSD