acl_free(3) — Linux manual page


ACL_FREE(3)             BSD Library Functions Manual             ACL_FREE(3)

NAME         top

     acl_free — release memory allocated to an ACL data object

LIBRARY         top

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

SYNOPSIS         top

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

     acl_free(void *obj_p);

DESCRIPTION         top

     The acl_free() function frees any releasable memory currently allocated
     by to the ACL data object identified by obj_p.  The argument obj_p may
     identify an ACL, an ACL entry qualifier, or a pointer to a string allo‐
     cated by the acl_to_text() function.

RETURN VALUE         top

     The acl_free() function returns the value 0 if successful; otherwise
     the value -1 is returned and the global variable errno is set to indi‐
     cate the error.

ERRORS         top

     If any of the following conditions occur, the acl_free() function
     returns the value -1 and and sets errno to the corresponding value:

     [EINVAL]           The value of the argument obj_p is invalid.

STANDARDS         top

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

SEE ALSO         top

     acl_copy_int(3), acl_create_entry(3), acl_dup(3), acl_from_text(3),
     acl_get_fd, acl_get_file(3), acl_init(3), acl(5)

AUTHOR         top

     Derived from the FreeBSD manual pages written by Robert N M Watson
     <>, and adapted for Linux by Andreas Gruenbacher

COLOPHON         top

     This page is part of the acl (manipulating access control lists)
     project.  Information about the project can be found at  If you have a bug report for
     this manual page, see ⟨⟩.
     This page was obtained from the project's upstream Git repository
     ⟨git://⟩ on 2020-09-18.  (At that time,
     the date of the most recent commit that was found in the repository was
     2020-09-03.)  If you discover any rendering problems in this HTML ver‐
     sion 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

Linux ACL                      March 23, 2002                      Linux ACL