ACL_STRIP_NP(3) BSD Library Functions Manual ACL_STRIP_NP(3)NAMEacl_is_trivial_np — determine whether ACL is trivial
Standard C Library (libc, -lc)
acl_is_trivial_np(const acl_t aclp, int *trivialp);
The acl_is_trivial() function determines whether the ACL pointed to by
the argument acl is trivial. Upon successful completion, the location
referred to by the argument trivialp will be set to 1, if the ACL aclp
points to is trivial, or 0 if it's not.
ACL is trivial if it can be fully expressed as a file mode without loos‐
ing any access rules. For POSIX.1e ACLs, ACL is trivial if it has the
three required entries, one for owner, one for owning group, and one for
other. For NFSv4 ACLs, ACL is trivial if it has the "canonical six"
entries. Files that have non-trivial ACL have a plus sign appended after
mode bits in "ls -l" output.
The acl_get_tag_type() function returns the value 0 if successful; other‐
wise the value -1 is returned and the global variable errno is set to
indicate the error.
SEE ALSOacl(3), posix1e(3)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
POSIX.1e support was introduced in FreeBSD 4.0. The acl_is_trivial_np()
function was added in FreeBSD 8.0.
Edward Tomasz Napierala ⟨trasz@FreeBSD.org⟩.
BSD June 25, 2009 BSD