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#!/usr/bin/perl -w |
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# |
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# try to connect to a particular port on a bunch of hosts using |
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# socks proxy to connect through. For use with "mon". |
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# |
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# Options are |
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# -p <port-num> |
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# -t <connect-timeout-in-seconds> (default 15) |
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# -s <string to send upon connecting to provoke some output> |
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# -e <Perl regexp to expect in response> |
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# -q <string to send before closing after parsing response> |
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# -d <string to use as line delimiter for regexp matching> |
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# -S <socks server to connect to> |
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# -P <socks server port> (1080 by default) |
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# -v verbose (dump lot of debugging inforations) |
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|
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# without /-s/-e/-q/, just checks that the socket can be opened |
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# and closed. |
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|
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# cheap transformations done on send/quit/delim strings - \r and \n are |
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# converted to CR and LF. \\ is not supported - no escape possible. |
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|
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# sample usage: |
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# |
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# smtp: socksch.monitor -p 25 -e '^220\b' -q 'QUIT\r\n' |
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# web: socksch.monitor -p 80 -s 'GET / HTTP/1.0\r\n\r\n' -e '^HTTP.*200 OK' |
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|
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|
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# |
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# Jim Trocki, trockij@transmeta.com |
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# updated August 2000 by Ed Ravin <eravin@panix.com> for send/expect/quit |
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# updated July 2002 by Dobrica Pavlinusic <dpavlin@rot13.org> to use |
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# socks 4|5 servers |
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# |
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# Copyright (C) 1998, Jim Trocki |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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use Getopt::Std; |
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use Socket; |
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|
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use strict; |
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use Net::SOCKS; |
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|
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my %opt; |
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getopts ("d:p:t:s:e:q:S:P:v", \%opt); |
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my $USAGE= "Usage: socksch.monitor -p port [-t timeout] [-s sendstr] [-e regexp] [-q quitstr] [-d line-delim] [-S socks server] [-P socks port] [-v]\n"; |
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|
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my $PORT = $opt{"p"} || undef; |
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my $TIMEOUT = $opt{"t"} || 15; |
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|
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my $SEND= $opt{"s"} || undef; |
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my $EXPECT= $opt{"e"} || undef; |
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my $QUITSTR=$opt{"q"} || undef; |
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my $DELIM= $opt{"d"} || "\n"; |
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my $SOCKS_SERVER = $opt{"S"} || "socks.pliva.hr"; |
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my $SOCKS_PORT = $opt{"P"} || 1080; |
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my $verbose = $opt{"v"} || 0; |
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|
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if ($DELIM) |
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{ |
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$DELIM=~ s/\\n/\n/g; |
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$DELIM=~ s/\\r/\r/g; |
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} |
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|
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my @failures = (); |
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my @detail = (); |
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|
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my $ALARM = 0; |
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|
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sub checkbuf # buffer, regexp |
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{ |
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my ($buffer, $regexp)= @_; |
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|
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return $buffer =~ /$regexp/ if ($DELIM eq ''); |
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|
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my @lines= split($DELIM, $buffer); |
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|
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foreach my $line (@lines) |
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{ |
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if ($line =~ /$regexp/) |
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{ |
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return 1; |
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} |
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} |
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return 0; |
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} |
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|
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die $USAGE unless (@ARGV > 0); |
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die "$0: missing port number\n" unless defined $PORT; |
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|
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foreach my $host (@ARGV) { |
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|
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push @detail, "(debug) testing $host"; |
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|
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my $sock = new Net::SOCKS(socks_addr => $SOCKS_SERVER, |
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socks_port => $SOCKS_PORT, |
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#user_id => 'the_user', |
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#user_password => 'the_password', |
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#force_nonanonymous => 1, |
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protocol_version => 5); |
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|
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if (!defined $sock) { |
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die "(local err) could not create socks socket: $!\n"; |
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} elsif ($verbose) { |
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push @detail, "(debug) connected to socks server $SOCKS_SERVER:$SOCKS_PORT"; |
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} |
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|
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my $r; |
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|
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eval { |
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local $SIG{"ALRM"} = sub { die "alarm\n" }; |
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|
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alarm $TIMEOUT; |
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|
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$r = $sock->connect(peer_addr => $host, peer_port => $PORT); |
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|
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push @detail, "(debug) connect status: ".Net::SOCKS::status_message($sock->param('status_num')) if ($verbose); |
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|
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if ($sock->param('status_num') != SOCKS_OKAY) { |
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die "(local err) could not connect to peer $host port $PORT: $!\n"; |
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} |
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|
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alarm 0; |
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}; |
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|
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if ($@) { |
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push @failures, $host; |
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|
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if ($@ eq "alarm\n") { |
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push @detail, "$host timeout on connect"; |
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} else { |
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push @detail, "$host interrupted syscall on connect: $!"; |
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} |
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|
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$sock->close(); |
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next; |
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} |
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|
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if (!defined $r) { |
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push @failures, $host; |
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push @detail, "$host: could not connect: $!"; |
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$sock->close(); |
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next; |
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} |
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|
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if (defined($SEND)) { |
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my $rc= undef; |
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|
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$SEND=~ s/\\n/\n/g; |
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$SEND=~ s/\\r/\r/g; |
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eval { |
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local $SIG{"ALRM"} = sub { die "alarm\n" }; |
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|
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alarm $TIMEOUT; |
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push @detail, "(debug) sending '$SEND'" if ($verbose); |
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print $r $SEND; |
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alarm 0; |
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}; |
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if ($@) { |
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push @failures, $host; |
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|
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if ($@ eq "alarm\n") { |
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push @detail, "$host timeout on write"; |
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} else { |
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push @detail, "$host interrupted syscall on write: $!"; |
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} |
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} |
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} |
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|
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if (defined($EXPECT)) { |
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# read and match |
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|
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my $alldata= ""; |
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|
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eval { |
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local $SIG{"ALRM"} = sub { die "alarm\n" }; |
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|
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alarm $TIMEOUT; |
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|
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push @detail, "(debug) expecting '$EXPECT'" if ($verbose); |
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while (<$r>) { |
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$alldata .= $_; |
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last if (checkbuf($alldata, $EXPECT)); |
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} |
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alarm 0; |
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}; |
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|
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if ($@) { |
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push @failures, $host; |
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|
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if ($@ eq "alarm\n") { |
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push @detail, "$host timeout on read"; |
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} else { |
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push @detail, "$host interrupted syscall on read: $!"; |
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} |
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} |
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|
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if (! checkbuf($alldata, $EXPECT)) { |
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push @failures, $host; |
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push @detail, "$host: did not recv expected response"; |
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$sock->close(); |
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next; |
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} |
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} |
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|
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if (defined($QUITSTR)) { |
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my $rc= undef; |
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|
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$QUITSTR=~ s/\\n/\n/g; |
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$QUITSTR=~ s/\\r/\r/g; |
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|
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eval { |
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local $SIG{"ALRM"} = sub { die "alarm\n" }; |
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|
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alarm $TIMEOUT; |
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|
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push @detail, "(debug) sending '$QUITSTR'" if ($verbose); |
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print $r $QUITSTR; |
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alarm 0; |
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}; |
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if ($@) { |
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push @failures, $host; |
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|
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if ($@ eq "alarm\n") { |
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push @detail, "$host timeout writing quitstr"; |
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} else { |
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push @detail, "$host interrupted syscall writing quitstr: $!"; |
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} |
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} |
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} |
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|
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if (! $sock->close()) { |
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push @failures, $host; |
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push @detail, "$host: could not close socket: $!"; |
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next; |
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} |
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} |
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|
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if (@failures > 0 || $verbose) { |
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print "@failures\n"; |
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print "\n", join ("\n", @detail), "\n"; |
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} |
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|
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if (@failures == 0) { |
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exit 0; |
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} |
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|
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exit 1; |
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