--- smeserver-yum-2.0.0/root/usr/lib/yum-plugins/protect-packages.py.yumremove	2008-11-24 08:56:16.000000000 -0700
+++ smeserver-yum-2.0.0/root/usr/lib/yum-plugins/protect-packages.py	2007-07-09 15:32:12.000000000 -0600
@@ -0,0 +1,92 @@
+# 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 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+# Copyright 2007 Boston University 
+# written by Svetlana Anissimova <svetanis@gmail.com> and
+#            Matthew Miller <mattdm@mattdm.org>
+
+"""
+This plugin prevents Yum from removing itself and other protected packages.
+
+By default, yum is the only package protected, but by extension this
+automatically protects everything on which yum depends (rpm, python, glibc, 
+and so on).Therefore, the plugin functions well even without
+compiling careful lists of all important packages.
+
+Additional packages to protect may be listed one per line in the file
+/etc/sysconfig/protected-packages and in *.list files placed in  
+/etc/sysconfig/protected-packages.d/. 
+
+If you wish to temporarily exclude certain packages from protection, you can
+use the --override-protection command-line option. 
+"""
+
+try:
+    from yum.plugins import TYPE_CORE, TYPE_INTERACTIVE, PluginYumExit
+except ImportError:
+    from yum.plugins import TYPE_CORE, TYPE_INTERFACE, PluginYumExit
+import sys
+import os
+import string
+import glob
+
+requires_api_version = '2.1'
+try:
+    plugin_type = (TYPE_CORE, TYPE_INTERACTIVE)
+except NameError:
+    plugin_type = (TYPE_CORE, TYPE_INTERFACE)
+
+def config_hook(conduit):
+    parser = conduit.getOptParser()
+    parser.add_option("", "--override-protection", dest='override', 
+                      action="append", default=[], metavar='[package]',
+                      help="remove package from the list of protected packages")
+
+def postresolve_hook(conduit):
+    protectedpkgs = ['yum']
+    protectedlist = []
+    opts, args = conduit.getCmdLine()
+
+    confdir = conduit.confString('main','confdir','/etc/sysconfig')
+
+    if os.access(confdir + "/protected-packages", os.R_OK) : 
+        protectedlist.append(confdir + "/protected-packages")
+
+    if os.access(confdir + "/protected-packages.d", os.R_OK):
+        protectedlist.extend(glob.glob(confdir + "/protected-packages.d/*.list"))
+
+    if protectedlist:
+        for f in protectedlist:
+            for line in open(f).readlines():            
+                line = string.strip(line)
+                if (line and line[0] != "#" and line not in opts.override  
+                                            and line not in protectedpkgs):
+                    protectedpkgs.append(line)
+
+    for tsmem in conduit.getTsInfo().getMembers():
+        if tsmem.name in protectedpkgs and tsmem.ts_state == 'e':
+            raise PluginYumExit("This transaction would cause %s to be removed."
+                " This package is vital for the basic operation of your system."
+                " If you really want to remove it, edit the list of protected"
+                " packages in the file %s or in the directory %s or use the"
+                " --override-protection command-line option."
+                %(tsmem.name, confdir + "/protected-packages",
+                 confdir + "/protected-packages.d"))
+
+
+
+
+
+
--- smeserver-yum-2.0.0/root/etc/yum/pluginconf.d/protect-packages.conf.yumremove	2008-11-24 08:55:46.000000000 -0700
+++ smeserver-yum-2.0.0/root/etc/yum/pluginconf.d/protect-packages.conf	2007-07-06 14:00:44.000000000 -0600
@@ -0,0 +1,3 @@
+[main]
+enabled = 1
+confdir = /etc/sysconfig