#! @PERLV_PATH@
##
## $Id: arancid.in,v 1.22 2006/10/05 04:27:42 heas Exp $
##
## @PACKAGE@ @VERSION@
## Hacked version of rancid for Alteon WebOS switches
## tested with: ad3 v8.1.18
## afort@choqolat.org (andrew fort)
##
## Copyright (C) 1997-2006 by Terrapin Communications, Inc.
## All rights reserved.
##
## This software may be freely copied, modified and redistributed
## without fee for non-commerical purposes provided that this license
## remains intact and unmodified with any RANCID distribution.
##
## There is no warranty or other guarantee of fitness of this software.
## It is provided solely "as is".  The author(s) disclaim(s) all
## responsibility and liability with respect to this software's usage
## or its effect upon hardware, computer systems, other software, or
## anything else.
##
## Except where noted otherwise, rancid was written by and is maintained by
## Henry Kilmer, John Heasley, Andrew Partan, Pete Whiting, and Austin Schutz.
##
#
#  RANCID - Really Awesome New Cisco confIg Differ
#
# arancid - Alteon WebOS plugin for rancid
#
# usage: arancid [-dV] [-l] [-f filename | hostname]
#
use Getopt::Std;
getopts('dflV');
if ($opt_V) {
    print "@PACKAGE@ @VERSION@\n";
    exit(0);
}
$log = $opt_l;
$debug = $opt_d;
$file = $opt_f;
$host = $ARGV[0];
$clean_run = 0;
$found_end = 0;
$prompt = "#";
$timeo = 90;				# alogin timeout in seconds

my(@commandtable, %commands, @commands);# command lists
my(%filter_pwds);			# password filtering mode

# This routine is used to print out the router configuration
sub ProcessHistory {
    my($new_hist_tag,$new_command,$command_string,@string) = (@_);
    if ((($new_hist_tag ne $hist_tag) || ($new_command ne $command))
	&& defined %history) {
	print eval "$command \%history";
	undef %history;
    }
    if (($new_hist_tag) && ($new_command) && ($command_string)) {
	if ($history{$command_string}) {
	    $history{$command_string} = "$history{$command_string}@string";
	} else {
	    $history{$command_string} = "@string";
	}
    } elsif (($new_hist_tag) && ($new_command)) {
	$history{++$#history} = "@string";
    } else {
	print "@string";
    }
    $hist_tag = $new_hist_tag;
    $command = $new_command;
    1;
}

sub numerically { $a <=> $b; }

# This is a sort routine that will sort numerically on the
# keys of a hash as if it were a normal array.
sub keynsort {
    local(%lines) = @_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $key (sort numerically keys(%lines)) {
	$sorted_lines[$i] = $lines{$key};
	$i++;
    }
    @sorted_lines;
}

# This is a sort routine that will sort on the
# keys of a hash as if it were a normal array.
sub keysort {
    local(%lines) = @_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $key (sort keys(%lines)) {
	$sorted_lines[$i] = $lines{$key};
	$i++;
    }
    @sorted_lines;
}

# This is a sort routine that will sort on the
# values of a hash as if it were a normal array.
sub valsort{
    local(%lines) = @_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $key (sort values %lines) {
	$sorted_lines[$i] = $key;
	$i++;
    }
    @sorted_lines;
}

# This is a numerical sort routine (ascending).
sub numsort {
    local(%lines) = @_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $num (sort {$a <=> $b} keys %lines) {
	$sorted_lines[$i] = $lines{$num};
	$i++;
    }
    @sorted_lines;
}

# This is a sort routine that will sort on the
# ip address when the ip address is anywhere in
# the strings.
sub ipsort {
    local(%lines) = @_;
    local($i) = 0;
    local(@sorted_lines);
    foreach $addr (sort sortbyipaddr keys %lines) {
	$sorted_lines[$i] = $lines{$addr};
	$i++;
    }
    @sorted_lines;
}

# These two routines will sort based upon IP addresses
sub ipaddrval {
    my(@a) = ($_[0] =~ m#^(\d+)\.(\d+)\.(\d+)\.(\d+)$#);
    $a[3] + 256 * ($a[2] + 256 * ($a[1] +256 * $a[0]));
}
sub sortbyipaddr {
    &ipaddrval($a) <=> &ipaddrval($b);
}

# This routine parses "/info/sys" (cf. show version)
sub ShowVersion {
    print STDERR "    In ShowVersion: $_" if ($debug);

    while (<INPUT>)  {
	tr/\015//d;
	last if (/^>>.*$prompt/);
	next if(/^(\s*|\s*$cmd\s*)$/);

	/^(ACEdirector.*|ACEswitch.*|Alteon.*)/i &&
	  ProcessHistory("COMMENTS","keysort","A1", "\/\*Model: $1\n") && next;
	/^Software Version\s+(.*?)\s\((.*)\)/i &&
	  ProcessHistory("COMMENTS","keysort","B1", "\/\*Image: Software: $1 ($2)\n") && next;
	/^Hardware Part No:\s+(.*?)\s+/i &&
	  ProcessHistory("COMMENTS","keysort","A2", "\/\*Hardware part no: $1\n") && next;
	/^MAC address:\s+([0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2}:[0-9a-f]{2})/i &&
	  ProcessHistory("COMMENTS","keysort","C1", "\/\*Base MAC address: $1\n") && next;
    }
    return(0);
}

# This routine processes a "/cfg/dump"
sub WriteTerm {
    print STDERR "    In WriteTerm: $_" if ($debug);

    # eat the header line
    #$junk = <INPUT>;

    # now just copy it verbatim to the history file
    while (<INPUT>) {
	tr/\015//d;
	last if(/^>>.*$prompt/);
	chop;
	if (/(rcomm|wcomm|t1com|t2com)(\s+)(.*)/ &&
		defined($ENV{'NOCOMMSTR'})) {
	    ProcessHistory("","","","\/\*\t$1$2\"<removed>\"\n") && next;
	}
	/^(\s+.{2,3}pw )\S+/ &&
	    ProcessHistory("","","","\/\*$1<removed>\n") && next;

	next if (/^\/\* Configuration dump taken/i);
	next if (/^\/\* Version.*Base MAC.*/i);

		if (/^\/?script end/) {
		$found_end = 1;
		ProcessHistory("","","","$_\n");
		return(1);
		}

	ProcessHistory("","","","$_\n");
    }
    return(0);
}

# dummy function
sub DoNothing {print STDOUT;}

# Main
@commandtable = (
	{'/info/sys'		=> 'ShowVersion'},
	{'/cfg/dump'		=> 'WriteTerm'}
);
# Use an array to preserve the order of the commands and a hash for mapping
# commands to the subroutine and track commands that have been completed.
@commands = map(keys(%$_), @commandtable);
%commands = map(%$_, @commandtable);

$cisco_cmds=join(";",@commands);
$cmds_regexp=join("|",@commands);

if (length($host) == 0) {
    if ($file) {
	print(STDERR "Too few arguments: file name required\n");
	exit(1);
    } else {
	print(STDERR "Too few arguments: host name required\n");
	exit(1);
    }
}
open(OUTPUT,">$host.new") || die "Can't open $host.new for writing: $!\n";
select(OUTPUT);
# make OUTPUT unbuffered if debugging
if ($debug) { $| = 1; }

if ($file) {
    print STDERR "opening file $host\n" if ($debug);
    print STDOUT "opening file $host\n" if ($log);
    open(INPUT,"<$host") || die "open failed for $host: $!\n";
} else {
    print STDERR "executing alogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($debug);
    print STDOUT "executing alogin -t $timeo -c\"$cisco_cmds\" $host\n" if ($log);
    if (defined($ENV{NOPIPE})) {
	system "alogin -t $timeo -c \"$cisco_cmds\" $host </dev/null > $host.raw 2>&1" || die "alogin failed for $host: $!\n";
	open(INPUT, "< $host.raw") || die "alogin failed for $host: $!\n";
    } else {
	open(INPUT,"alogin -t $timeo -c \"$cisco_cmds\" $host </dev/null |") || die "alogin failed for $host: $!\n";
    }
}

ProcessHistory("","","","\/\*RANCID-CONTENT-TYPE: alteon\n\/\*\n");
ProcessHistory("COMMENTS","keysort","B0","\/\*\n");
ProcessHistory("COMMENTS","keysort","F0","\/\*\n");
TOP: while(<INPUT>) {
    tr/\015//d;
    if (/^>>.*$prompt exit/) {
	$clean_run=1;
	last;
    }

    while (/>>.*$prompt\s*($cmds_regexp)\s*$/) {
	$cmd = $1;
	if (!defined($prompt)) {
	    $prompt = ($_ =~ /^([^#]+#)/)[0];
	    $prompt =~ s/([][}{)(\\])/\\$1/g;
	    print STDERR ("PROMPT MATCH: $prompt\n") if ($debug);
	}
	print STDERR ("HIT COMMAND:$_") if ($debug);
	if (!defined($commands{$cmd})) {
	    print STDERR "$host: found unexpected command - \"$cmd\"\n";
	    $clean_run = 0;
	    last TOP;
	}
	$rval = &{$commands{$cmd}};
	delete($commands{$cmd});
	if ($rval == -1) {
	    $clean_run = 0;
	    last TOP;
	}
    }
}
print STDOUT "Done $logincmd: $_\n" if ($log);
# Flush History
ProcessHistory("","","","");
# Cleanup
close(INPUT);
close(OUTPUT);

if (defined($ENV{NOPIPE})) {
    unlink("$host.raw") if (! $debug);
}

# check for completeness
if (scalar(%commands) || !$clean_run || !$found_end) {
    if (scalar(%commands)) {
	printf(STDOUT "$host: missed cmd(s): %s\n", join(',', keys(%commands)));
	printf(STDERR "$host: missed cmd(s): %s\n", join(',', keys(%commands))) if ($debug);
    }
    if (!$clean_run || !$found_end) {
	print STDOUT "$host: End of run not found\n";
	print STDERR "$host: End of run not found\n" if ($debug);
	system("/usr/bin/tail -1 $host.new");
    }
    unlink "$host.new" if (! $debug);
}