CentOS 7.0 - man page for acl_dup (centos section 3)
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ACL_DUP(3) BSD Library Functions Manual ACL_DUP(3)
acl_dup -- duplicate an ACL
Linux Access Control Lists library (libacl, -lacl).
The acl_dup() function returns a pointer to a copy of the ACL pointed to by acl.
This function may cause memory to be allocated. The caller should free any releasable mem-
ory, when the new ACL is no longer required, by calling acl_free(3) with the (void*)acl_t
returned by acl_dup() as an argument.
On success, this function returns a pointer to the working storage. On error, a value of
(acl_t)NULL is returned, and errno is set appropriately.
If any of the following conditions occur, the acl_dup() function returns a value of
(acl_t)NULL and sets errno to the corresponding value:
[EINVAL] The argument acl is not a valid pointer to an ACL.
[ENOMEM] The acl_t to be returned requires more memory than is allowed by the
hardware or system-imposed memory management constraints.
IEEE Std 1003.1e draft 17 ("POSIX.1e", abandoned)
acl_free(3), acl_get_entry(3), acl(5)
Derived from the FreeBSD manual pages written by Robert N M Watson <rwatson@FreeBSD.org>,
and adapted for Linux by Andreas Gruenbacher <firstname.lastname@example.org>.
Linux ACL March 23, 2002 Linux ACL
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