| /* Return the number of entries in an ACL. |
| |
| Copyright (C) 2002-2003, 2005-2012 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); |
| 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 |
| work. */ |
| count = acl->acl_num; |
| # endif |
| #endif |
| } |
| |
| return count; |
| } |