acl_dup(3) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON

ACL_DUP(3)            BSD Library Functions Manual            ACL_DUP(3)

NAME         top

     acl_dup — duplicate an ACL

LIBRARY         top

     Linux Access Control Lists library (libacl, -lacl).

SYNOPSIS         top

     #include <sys/types.h>
     #include <sys/acl.h>

     acl_t
     acl_dup(acl_t acl);

DESCRIPTION         top

     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         top

     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         top

     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         top

     IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)

SEE ALSO         top

     acl_free(3), acl_get_entry(3), acl(5)

AUTHOR         top

     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         top

     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 2021-04-01.  (At that
     time, the date of the most recent commit that was found in the
     repository was 2021-03-16.)  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 man-pages@man7.org

Linux ACL                    March 23, 2002                    Linux ACL