ACL_ENTRIES(3)          BSD Library Functions Manual          ACL_ENTRIES(3)

NAME         top

     acl_entries — return the number of entries in an ACL

LIBRARY         top

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

SYNOPSIS         top

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

     acl_entries(acl_t acl);

DESCRIPTION         top

     The acl_entries() function returns the number of ACL entries that are
     contained in the ACL referred to by the argument acl.

RETURN VALUE         top

     The acl_entries() function returns the number of entries in acl if suc‐
     cessful; otherwise the value -1 is returned and the global variable
     errno is set to indicate the error.

ERRORS         top

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

     [EINVAL]           The argument acl is not a valid pointer to an ACL.

STANDARDS         top

     This is a non-portable, Linux specific extension to the ACL
     manipulation functions defined in IEEE Std 1003.1e draft 17
     (“POSIX.1e”, abandoned).

SEE ALSO         top


AUTHOR         top

     Written 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 2018-02-02.  (At that time,
     the date of the most recent commit that was found in the repository was
     2018-01-21.)  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