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#! /usr/bin/perl
##
## $Id: rivrancid.in 3345 2016-04-04 00:24:36Z heas $
##
## rancid 3.6.2
## Copyright (c) 1997-2016 by Terrapin Communications, Inc.
## All rights reserved.
##
## This code is derived from software contributed to and maintained by
## Terrapin Communications, Inc. by Henry Kilmer, John Heasley, Andrew Partan,
## Pete Whiting, Austin Schutz, and Andrew Fort.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions
## are met:
## 1. Redistributions of source code must retain the above copyright
##    notice, this list of conditions and the following disclaimer.
## 2. Redistributions in binary form must reproduce the above copyright
##    notice, this list of conditions and the following disclaimer in the
##    documentation and/or other materials provided with the distribution.
## 3. All advertising materials mentioning features or use of this software
##    must display the following acknowledgement:
##        This product includes software developed by Terrapin Communications,
##        Inc. and its contributors for RANCID.
## 4. Neither the name of Terrapin Communications, Inc. nor the names of its
##    contributors may be used to endorse or promote products derived from
##    this software without specific prior written permission.
## 5. It is requested that non-binding fixes and modifications be contributed
##    back to Terrapin Communications, Inc.
##
## THIS SOFTWARE IS PROVIDED BY Terrapin Communications, INC. AND CONTRIBUTORS
## ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
## TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
## PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COMPANY OR CONTRIBUTORS
## BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
## CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
## SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
## INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
## CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
## ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
## POSSIBILITY OF SUCH DAMAGE.
#
# Amazingly hacked version of Hank's rancid - this one tries to
# deal with Cabletron, Riverstone and Enterasys routers/switches
#
# 10/23/2002 -- Initial changes for Riverstone/Cabletron support
#		Jim Meehan -- jmeehan@vpizza.org
#
#  RANCID - Really Awesome New Cisco confIg Differ
#
# usage: rivrancid [-dltCV] [-f filename | hostname]
#
use Getopt::Std;
getopts('dflt:CV');
if ($opt_V) {
    print "rancid 3.6.2\n";
    exit(0);
}
$log = $opt_l;
$debug = $opt_d;
$file = $opt_f;
$host = $ARGV[0];
$clean_run = 0;
$found_end = 0;
$timeo = 90;				# rivlogin timeout in seconds

my(@commandtable, %commands, @commands);# command lists
my($aclsort) = ("ipsort");		# ACL sorting mode
my($filter_commstr);			# SNMP community string filtering
my($filter_osc);			# oscillating data filtering mode
my($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 $command))
	&& scalar(%history)) {
	print eval "$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 "system show version"
sub ShowVersion {
    my($slot);

    print STDERR "    In ShowVersion: $_" if ($debug);

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

	ProcessHistory("VERSION","","","!SW: $_");
    }
    ProcessHistory("VERSION","","","!\n");
    return(0);
}

# This routine parses "system show hardware"
sub ShowHardware {
    print STDERR "    In ShowHardware: $_" if ($debug);

    while (<INPUT>) {
	tr/\015//d;
	last if (/^$prompt/);
	ProcessHistory("HARDWARE","","","!HW: $_");
    }
    ProcessHistory("","","","!\n");
    return(0);
}

# This routine parses "system show uptime"
sub ShowUptime {
    print STDERR "    In ShowUptime: $_" if ($debug);

    while (<INPUT>) {
    tr/\015//d;
	last if(/^$prompt/);
	next if /^\s*$/;
	next if /System up/;
	ProcessHistory("UPTIME","","","!UPTIME: $_");
    }
    ProcessHistory("","","","!\n");
    return;
}

# This routine processes a "system show active"
sub ShowActive {
    print STDERR "    In ShowActive: $_" if ($debug);

    while (<INPUT>) {
	tr/\015//d;

	# Remove leading whitespace and/or line numbers
	s/^\s*(\d+\D: )*//;

	# Riverstone/Cabletron doesn't have an "end" line, so
	# we need to set $clean_run here
	if (/^$prompt/) {
	    $clean_run = 1;
	    last;
	}

	next if (/Running system configuration/);

	# filter out any RCS/CVS tags to avoid confusing local CVS storage
	s/\$(Revision|Id):/ $1:/;

	if (/^(.*hashed-password \S+)/ && $filter_pwds == 2) {
	    ProcessHistory("","","","! $1 <removed>\n");
	    next;
	}

	if (/^(snmp set community )\S+/ && $filter_commstr) {
	    ProcessHistory("","","","! $1<removed>$'");
	    next;
	}

	ProcessHistory("","","","$_");
    }
    return;
}

# Main
@commandtable = (
	{'system show uptime'		=> 'ShowUptime'},
	{'system show version'		=> 'ShowVersion'},
	{'system show hardware'		=> 'ShowHardware'},
	{'system show active-config'	=> 'ShowActive'}
);
# 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);
$commandcnt = scalar(keys %commands);

$commandstr=join(";",@commands);
$cmds_regexp = join("|", map quotemeta($_), @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);
    }
}
if ($opt_C) {
    print "rivlogin -t $timeo -c\'$commandstr\' $host\n";
    exit(0);
}
open(OUTPUT,">$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 || $log);
    open(INPUT,"<$host") || die "open failed for $host: $!\n";
} else {
    print(STDERR "executing rivlogin -t $timeo -c\"$commandstr\" $host\n") if ($debug || $log);
    if (defined($ENV{NOPIPE}) && $ENV{NOPIPE} =~ /^YES/i) {
	system "rivlogin -t $timeo -c \"$commandstr\" $host </dev/null > $host.raw 2>&1" || die "rivlogin failed for $host: $!\n";
	open(INPUT, "< $host.raw") || die "rivlogin failed for $host: $!\n";
    } else {
	open(INPUT,"rivlogin -t $timeo -c \"$commandstr\" $host </dev/null |") || die "rivlogin failed for $host: $!\n";
    }
}

# determine ACL sorting mode
if ($ENV{"ACLSORT"} =~ /no/i) {
    $aclsort = "";
}
# determine community string filtering mode
if (defined($ENV{"NOCOMMSTR"}) &&
    ($ENV{"NOCOMMSTR"} =~ /yes/i || $ENV{"NOCOMMSTR"} =~ /^$/)) {
    $filter_commstr = 1;
} else {
    $filter_commstr = 0;
}
# determine oscillating data filtering mode
if (defined($ENV{"FILTER_OSC"}) && $ENV{"FILTER_OSC"} =~ /no/i) {
    $filter_osc = 0;
} else {
    $filter_osc = 1;
}
# determine password filtering mode
if ($ENV{"FILTER_PWDS"} =~ /no/i) {
    $filter_pwds = 0;
} elsif ($ENV{"FILTER_PWDS"} =~ /all/i) {
    $filter_pwds = 2;
} else {
    $filter_pwds = 1;
}

ProcessHistory("","","","!RANCID-CONTENT-TYPE: riverstone\n!\n");
TOP: while(<INPUT>) {
    tr/\015//d;
    last if ($clean_run);
    if (/^Error:/) {
	print STDOUT ("$host rivlogin error: $_");
	print STDERR ("$host rivlogin error: $_") if ($debug);
	$clean_run=0;
	last;
    }

	$kradcount++;

    while (/\033(\[\?25l)/) {
	s/\033\[\?25l//g;
	#print STDERR "krad $1\n";
	#print STDERR $_;
	#print STDERR $kradcount;
	next;
	}


    while (/#\s*($cmds_regexp)\s*$/) {
	$cmd = $1;
	if (!defined($prompt)) {
	    $prompt = ($_ =~ /^([^#]+#)/)[0];
	    $prompt =~ s/([}{)(\\])/\\$1/g;
	}
	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}}(*INPUT, *OUTPUT, $cmd);
	delete($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}) && $ENV{NOPIPE} =~ /^YES/i) {
    unlink("$host.raw") if (! $debug);
}

# check for completeness
if (scalar(%commands) || !$clean_run) {
    if (scalar(keys %commands) eq $commandcnt) {
	printf(STDERR "$host: missed cmd(s): all commands\n");
    } elsif (scalar(%commands)) {
	my($count, $i) = 0;
	for ($i = 0; $i < $#commands; $i++) {
	    if ($commands{$commands[$i]}) {
		if (!$count) {
		    printf(STDERR "$host: missed cmd(s): %s", $commands[$i]);
		} else {
		    printf(STDERR ", %s", $commands[$i]);
		}
		$count++;
	    }
	}
	if ($count) {
	    printf(STDERR "\n");
	}
    }
    if (!$clean_run) {
	print(STDERR "$host: End of run not found\n");
	system("/usr/bin/tail -1 $host.new");
    }
    unlink "$host.new" if (! $debug);
}