import VTY code from zebra/quagga (from my cardshell project)

diff --git a/src/Makefile.am b/src/Makefile.am
index 412e1e3..3847af3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -2,7 +2,7 @@
 AM_CFLAGS=-Wall
 
 sbin_PROGRAMS = bsc_hack bs11_config ipaccess-find
-noinst_LIBRARIES = libbsc.a
+noinst_LIBRARIES = libbsc.a libvty.a
 
 libbsc_a_SOURCES = abis_rsl.c abis_nm.c gsm_04_08.c gsm_data.c \
 		gsm_subscriber.c msgb.c select.c chan_alloc.c timer.c debug.c db.c \
@@ -10,6 +10,8 @@
 		trau_frame.c trau_mux.c paging.c e1_config.c e1_input.c tlv_parser.c \
 		input/misdn.c input/ipaccess.c signal.c gsm_utils.c
 
+libvty_a_SOURCES = vty/buffer.c vty/command.c vty/vector.c vty/vty.c
+
 bsc_hack_SOURCES = bsc_hack.c
 bsc_hack_LDADD = libbsc.a -ldl -ldbi