slirp: Enhance host-guest redirection setup (Jan Kiszka)

Allow to establish a TCP/UDP connection redirection also via a monitor
command 'host_net_redir'. Moreover, assume TCP as connection type if
that parameter is omitted.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7204 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/vl.c b/vl.c
index e0822fb..0a5605d 100644
--- a/vl.c
+++ b/vl.c
@@ -4589,7 +4589,7 @@
                 break;
 #endif
             case QEMU_OPTION_redir:
-                net_slirp_redir(optarg);
+                net_slirp_redir(NULL, optarg);
                 break;
 #endif
             case QEMU_OPTION_bt: