freebsd man page for acl_is_trivial_np

ACL_STRIP_NP(3) 					   BSD Library Functions Manual 					   ACL_STRIP_NP(3)

NAME
     acl_is_trivial_np -- determine whether ACL is trivial

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/types.h>
     #include <sys/acl.h>

     int
     acl_is_trivial_np(const acl_t aclp, int *trivialp);

DESCRIPTION
     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 losing 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 is identical to the ACL
     generated by acl_strip_np(3).  Files that have non-trivial ACL have a plus sign appended after mode bits in "ls -l" output.

RETURN VALUES
     The acl_get_tag_type() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to
     indicate the error.

SEE ALSO
     acl(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 information.

HISTORY
     POSIX.1e support was introduced in FreeBSD 4.0.  The acl_is_trivial_np() function was added in FreeBSD 8.0.

AUTHORS
     Edward Tomasz Napierala <trasz@FreeBSD.org>

BSD
								 November 12, 2013							       BSD