acl_from_mode_np(3)

acl_from_mode_np3

Create an acl from status information

Usage

#include <sys/types.h>

#include <sys/acl.h>

acl_t

acl_from_mode_np(const mode_t mode);

Library

Standard C Library (libc, -lc)

Overview

The acl_from_mode_np() function is a non-portable call that converts the permissions set referred to by mode into the corresponding minimal ACL structure, appropriate for applying to files or manipulating.

This function causes memory to be allocated. The caller should free any free-able memory, when the new ACL is no longer required, by calling acl_free(3) with the (void *)acl_t as an argument.

Return values

Upon successful completion, the function returns a pointer to the internal representation of the ACL in working storage. Otherwise, a value of (acl_t)NULL is returned, and errno is set to indicate the error.

Errors

If any of the following conditions occur, the acl_from_mode_np() function returns a value of (acl_t)NULL and set errno to the corresponding value:

[ENOMEM]

The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.

Releases

Unchanged in 9 releases since FreeBSD 14.0-RELEASE.

  1. 14.0–16.0

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, and development continues.

Authors

Gleb Popov

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.