ACL_IS_TRIVIAL_NP(3) FreeBSD Library Functions Manual ACL_IS_TRIVIAL_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_np() 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_is_trivial_np() 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), acl_strip_np(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 <
[email protected]>
FreeBSD 14.1-RELEASE-p8 June 19, 2023 FreeBSD 14.1-RELEASE-p8