+
−/* Return the number of entries in an ACL.
+
−
+
−   Copyright (C) 2002-2003, 2005-2013 Free Software Foundation, Inc.
+
−
+
−   This program is free software: you can redistribute it and/or modify
+
−   it under the terms of the GNU General Public License as published by
+
−   the Free Software Foundation; either version 3 of the License, or
+
−   (at your option) any later version.
+
−
+
−   This program is distributed in the hope that it will be useful,
+
−   but WITHOUT ANY WARRANTY; without even the implied warranty of
+
−   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+
−   GNU General Public License for more details.
+
−
+
−   You should have received a copy of the GNU General Public License
+
−   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
−
+
−   Written by Paul Eggert and Andreas Gruenbacher.  */
+
−
+
−#include <config.h>
+
−
+
−#include "acl-internal.h"
+
−
+
−/* This file assumes POSIX-draft like ACLs
+
−   (Linux, FreeBSD, Mac OS X, IRIX, Tru64).  */
+
−
+
−/* Return the number of entries in ACL.
+
−   Return -1 and set errno upon failure to determine it.  */
+
−
+
−int
+
−acl_entries (acl_t acl)
+
−{
+
−  int count = 0;
+
−
+
−  if (acl != NULL)
+
−    {
+
−#if HAVE_ACL_FIRST_ENTRY /* Linux, FreeBSD, Mac OS X */
+
−# if HAVE_ACL_TYPE_EXTENDED /* Mac OS X */
+
−      /* acl_get_entry returns 0 when it successfully fetches an entry,
+
−         and -1/EINVAL at the end.  */
+
−      acl_entry_t ace;
+
−      int got_one;
+
−
+
−      for (got_one = acl_get_entry (acl, ACL_FIRST_ENTRY, &ace);
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−           got_one >= 0;
+
−           got_one = acl_get_entry (acl, ACL_NEXT_ENTRY, &ace))
+
−        count++;
+
−# else /* Linux, FreeBSD */
+
−      /* acl_get_entry returns 1 when it successfully fetches an entry,
+
−         and 0 at the end.  */
+
−      acl_entry_t ace;
+
−      int got_one;
+
−
+
−      for (got_one = acl_get_entry (acl, ACL_FIRST_ENTRY, &ace);
+
−           got_one > 0;
+
−           got_one = acl_get_entry (acl, ACL_NEXT_ENTRY, &ace))
+
−        count++;
+
−      if (got_one < 0)
+
−        return -1;
+
−# endif
+
−#else /* IRIX, Tru64 */
+
−# if HAVE_ACL_TO_SHORT_TEXT /* IRIX */
+
−      /* Don't use acl_get_entry: it is undocumented.  */
+
−      count = acl->acl_cnt;
+
−# endif
+
−# if HAVE_ACL_FREE_TEXT /* Tru64 */
+
−      /* Don't use acl_get_entry: it takes only one argument and does not
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−         work.  */
+
−      count = acl->acl_num;
+
−# endif
+
−#endif
+
−    }
+
−
+
−  return count;
+
−}