X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Facl_entries.c;h=a931fff67d0f7744f7241fc8eca69e8522ba691f;hb=fa3486514bd8f15f8eb4c49821d0356b52e5a335;hp=25c8bb82500728d425842b8f817213dfd0187c52;hpb=e37fe028c558a3d0a80b347b745e162f549ea295;p=gnulib.git

diff --git a/lib/acl_entries.c b/lib/acl_entries.c
index 25c8bb825..a931fff67 100644
--- a/lib/acl_entries.c
+++ b/lib/acl_entries.c
@@ -1,11 +1,11 @@
 /* Return the number of entries in an ACL.
 
-   Copyright (C) 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2002-2003, 2005-2008 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   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 2, or (at your option)
-   any later version.
+   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
@@ -13,8 +13,7 @@
    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, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
    Written by Paul Eggert and Andreas Gruenbacher.  */
 
@@ -22,18 +21,38 @@
 
 #include "acl-internal.h"
 
+/* This file assumes POSIX-draft like ACLs
+   (Linux, FreeBSD, MacOS X, IRIX, Tru64).  */
+
 /* Return the number of entries in ACL.  */
 
 int
 acl_entries (acl_t acl)
 {
-  char *t;
-  int entries = 0;
-  char *text = acl_to_text (acl, NULL);
-  if (! text)
-    return -1;
-  for (t = text; *t; t++)
-    entries += (*t == '\n');
-  acl_free (text);
-  return entries;
+  int count = 0;
+
+  if (acl != NULL)
+    {
+#if HAVE_ACL_FIRST_ENTRY /* Linux, FreeBSD, MacOS X */
+      acl_entry_t ace;
+      int at_end;
+
+      for (at_end = acl_get_entry (acl, ACL_FIRST_ENTRY, &ace);
+	   !at_end;
+	   at_end = acl_get_entry (acl, ACL_NEXT_ENTRY, &ace))
+	count++;
+#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;
 }