acl_dup(3) — Linux manual page
ACL_DUP(3) Library Functions Manual ACL_DUP(3)
NAME
acl_dup — duplicate an ACL
LIBRARY
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS
<sys/types.h> <sys/acl.h> acl_t acl_dup(acl_t acl)
DESCRIPTION
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 memory, 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.
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 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.
STANDARDS
IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)
SEE ALSO
acl_free(3), acl_get_entry(3), acl(5)
AUTHOR
Derived from the FreeBSD manual pages written by Robert N M
Watson <rwatson@FreeBSD.org>, and adapted for Linux by Andreas
Gruenbacher <andreas.gruenbacher@gmail.com>.
COLOPHON
This page is part of the acl (manipulating access control lists)
project. Information about the project can be found at
http://savannah.nongnu.org/projects/acl. If you have a bug
report for this manual page, see
⟨http://savannah.nongnu.org/bugs/?group=acl⟩. This page was
obtained from the project's upstream Git repository
⟨git://git.savannah.nongnu.org/acl.git⟩ on 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-04-25.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
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