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acl_dup(3) -- Linux man page
NAME
acl_dup
- duplicate an ACL
LIBRARY
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS
In sys/types.h
In sys/acl.h
Ft acl_t
Fn acl_dup acl_t acl
DESCRIPTION
The
Fn 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 memory, when the new ACL is no longer required, by calling
acl_free3
with the
(void*)acl_t
returned by
Fn acl_dup
as an argument.
RETURN VALUE
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.
ERRORS
If any of the following conditions occur, the
Fn acl_dup
function returns a value of
(acl_t)NULL
and sets
errno
to the corresponding value:
- Bq Er EINVAL
-
The argument
acl
is not a valid pointer to an ACL.
- Bq Er ENOMEM
-
The
acl_t
to be returned requires more memory than is allowed by the hardware or
system-imposed memory management constraints.
STANDARDS
IEEE Std 1003.1e draft 17 (lqPOSIX.1erq, abandoned)
SEE ALSO
acl_free3,
acl_get_entry3,
acl(5)
AUTHOR
Derived from the FreeBSD manual pages written by
An Robert N M Watson Aq rwatson@FreeBSD.org ,
and adapted for Linux by
An Andreas Gruenbacher Aq a.gruenbacher@computer.org .
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