Initial revision
diff --git a/vtysh/extract.pl b/vtysh/extract.pl
new file mode 100755
index 0000000..4a45901
--- /dev/null
+++ b/vtysh/extract.pl
@@ -0,0 +1,171 @@
+#! /usr/bin/perl
+##
+## Virtual terminal interface shell command extractor.
+## Copyright (C) 2000 Kunihiro Ishiguro
+##
+## This file is part of GNU Zebra.
+##
+## GNU Zebra 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.
+##
+## GNU Zebra 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
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with GNU Zebra; see the file COPYING. If not, write to the Free
+## Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+## 02111-1307, USA.
+##
+
+print <<EOF;
+#include <zebra.h>
+#include "command.h"
+#include "vtysh.h"
+
+EOF
+
+$ignore{'"interface IFNAME"'} = "ignore";
+$ignore{'"ip vrf NAME"'} = "ignore";
+$ignore{'"router rip"'} = "ignore";
+$ignore{'"router ripng"'} = "ignore";
+$ignore{'"router ospf"'} = "ignore";
+$ignore{'"router ospf <0-65535>"'} = "ignore";
+$ignore{'"router ospf6"'} = "ignore";
+$ignore{'"router bgp <1-65535>"'} = "ignore";
+$ignore{'"router bgp <1-65535> view WORD"'} = "ignore";
+$ignore{'"address-family ipv4"'} = "ignore";
+$ignore{'"address-family ipv4 (unicast|multicast)"'} = "ignore";
+$ignore{'"address-family ipv6"'} = "ignore";
+$ignore{'"address-family ipv6 unicast"'} = "ignore";
+$ignore{'"address-family vpnv4"'} = "ignore";
+$ignore{'"address-family vpnv4 unicast"'} = "ignore";
+$ignore{'"address-family ipv4 vrf NAME"'} = "ignore";
+$ignore{'"exit-address-family"'} = "ignore";
+$ignore{'"key chain WORD"'} = "ignore";
+$ignore{'"key <0-2147483647>"'} = "ignore";
+$ignore{'"route-map WORD (deny|permit) <1-65535>"'} = "ignore";
+$ignore{'"show route-map"'} = "ignore";
+
+foreach (@ARGV) {
+ $file = $_;
+
+ open (FH, "cpp -DHAVE_CONFIG_H -DVTYSH_EXTRACT_PL -I. -I.. -I../lib $file |");
+ local $/; undef $/;
+ $line = <FH>;
+ close (FH);
+
+ @defun = ($line =~ /(?:DEFUN|ALIAS)\s*\((.+?)\);?\s?\s?\n/sg);
+ @install = ($line =~ /install_element \(\s*[0-9A-Z_]+,\s*&[^;]*;\s*\n/sg);
+
+ # $protocol is VTYSH_PROTO format for redirection of user input
+ if ($file =~ /lib/) {
+ if ($file =~ /keychain.c/) {
+ $protocol = "VTYSH_RIPD";
+ }
+ if ($file =~ /routemap.c/) {
+ $protocol = "VTYSH_RIPD|VTYSH_OSPFD|VTYSH_BGPD";
+ }
+ if ($file =~ /filter.c/) {
+ $protocol = "VTYSH_RIPD|VTYSH_OSPFD|VTYSH_BGPD";
+ }
+ if ($file =~ /plist.c/) {
+ $protocol = "VTYSH_RIPD|VTYSH_BGPD";
+ }
+ } else {
+ ($protocol) = ($file =~ /\/([a-z0-9]+)/);
+ $protocol = "VTYSH_" . uc $protocol;
+ }
+
+ # DEFUN process
+ foreach (@defun) {
+ my (@defun_array);
+ @defun_array = split (/,/);
+ $defun_array[0] = '';
+
+
+ # Actual input command string.
+ $str = "$defun_array[2]";
+ $str =~ s/^\s+//g;
+ $str =~ s/\s+$//g;
+
+ # Get VTY command structure. This is needed for searching
+ # install_element() command.
+ $cmd = "$defun_array[1]";
+ $cmd =~ s/^\s+//g;
+ $cmd =~ s/\s+$//g;
+
+ # Append _vtysh to structure then build DEFUN again
+ $defun_array[1] = $cmd . "_vtysh";
+ $defun_body = join (", ", @defun_array);
+
+ # $cmd -> $str hash for lookup
+ $cmd2str{$cmd} = $str;
+ $cmd2defun{$cmd} = $defun_body;
+ $cmd2proto{$cmd} = $protocol;
+ }
+
+ # install_element() process
+ foreach (@install) {
+ my (@element_array);
+ @element_array = split (/,/);
+
+ # Install node
+ $enode = $element_array[0];
+ $enode =~ s/^\s+//g;
+ $enode =~ s/\s+$//g;
+ ($enode) = ($enode =~ /([0-9A-Z_]+)$/);
+
+ # VTY command structure.
+ ($ecmd) = ($element_array[1] =~ /&([^\)]+)/);
+ $ecmd =~ s/^\s+//g;
+ $ecmd =~ s/\s+$//g;
+
+ # Register $ecmd
+ if (defined ($cmd2str{$ecmd})
+ && ! defined ($ignore{$cmd2str{$ecmd}})) {
+ my ($key);
+ $key = $enode . "," . $cmd2str{$ecmd};
+ $ocmd{$key} = $ecmd;
+ $odefun{$key} = $cmd2defun{$ecmd};
+ push (@{$oproto{$key}}, $cmd2proto{$ecmd});
+ }
+ }
+}
+
+# Check finaly alive $cmd;
+foreach (keys %odefun) {
+ my ($node, $str) = (split (/,/));
+ my ($cmd) = $ocmd{$_};
+ $live{$cmd} = $_;
+}
+
+# Output DEFSH
+foreach (keys %live) {
+ my ($proto);
+ my ($key);
+ $key = $live{$_};
+ $proto = join ("|", @{$oproto{$key}});
+ printf "DEFSH ($proto$odefun{$key})\n\n";
+}
+
+# Output install_element
+print <<EOF;
+void
+vtysh_init_cmd ()
+{
+EOF
+
+foreach (keys %odefun) {
+ my ($node, $str) = (split (/,/));
+ $cmd = $ocmd{$_};
+ $cmd =~ s/_cmd/_cmd_vtysh/;
+ printf " install_element ($node, &$cmd);\n";
+}
+
+print <<EOF
+}
+EOF