acl_dup -- duplicate an ACL
Standard C Library (libc, -lc)
The acl_dup() function returns a pointer to a copy of the ACL pointed to
by the argument acl.
This function may cause memory to be allocated. The caller should free
any releasable memory, when the new ACL is no longer required, by calling
acl_free(3) with the (void*)acl_t as an argument.
Any existing ACL pointers that refer to the ACL referred to by acl shall
continue to refer to the ACL.
FreeBSD's support for POSIX.1e interfaces and features is still under
development at this time.
Upon successful completion, this function shall return a pointer to the
duplicate ACL. Otherwise, a value of (acl_t)NULL shall be returned, and
errno shall be set to indicate the error.
If any of the following conditions occur, the acl_init() function shall
return a value of (acl_t)NULL and set errno to the corresponding value:
[EINVAL] Argument acl does not point to a valid ACL.
[ENOMEM] The acl_t to be returned requires more memory than is
allowed by the hardware or system-imposed memory management
acl(3), acl_free(3), acl_get(3), posix1e(3)
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, and development continues.
Robert N M Watson
FreeBSD 5.2.1 January 28, 2000 FreeBSD 5.2.1 [ Back ]