. "$UTIL_VSERVER_VARS"
. "$_LIB_FUNCTIONS"
-vserver="$1"
+vserver=$1
shift
pkgInit "$vserver" rpm yum
rpmFake.init "$vserver"
-rpmFake.exec ${_YUM:-yum} \
- -c "$YUMETCDIR/yum.conf" \
+test -z "$_YUM" || {
+ warning $"The environment variable \$_YUM is not supported anymore; please use \$YUM instead of"
+ ${YUM:=$_YUM}
+}
+
+yum=${YUM:-yum}
+conf=yum.conf
+case $(yum --version) in
+ (2.[01234]*)
+ python -c 'import yum,sys; sys.exit(not hasattr(yum.config.yumconf, "getRootedPath"))' &>/dev/null || {
+ warning "\
+You are using a version of yum which is insecure and broken in chroot
+related operations; either apply the patches shipped in the 'contrib/'
+directory of util-vserver, or ask the author of yum to apply them
+(preferred).
+
+In the meantime, 'vyum' will continue with dirty hacks which might not
+work when the vserver is running and local DOS attacks are possible.
+
+Execution will continue in 5 seconds..."
+ sleep 5
+ conf=yum-hack.conf
+ }
+ ;;
+esac
+
+rpmFake.exec $yum \
+ -c "$YUMETCDIR/${YUM_CONF:-$conf}" \
--installroot="$VDIR" \
"$@"