772 lines
23 KiB
Perl
772 lines
23 KiB
Perl
#!/usr/bin/perl
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###############################################################################
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# Pandora FMS Agent Plugin for ADVANCED log parsing
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# Copyright (c) 2011-2015 Sancho Lerena <slerena@artica.es>
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# Copyright (c) 2011-2015 Artica Soluciones Tecnologicas S.L.
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# _______ __ __ _______ _______
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# | _ |.----.| |_|__|.----.---.-. | __|_ _|
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# | || _|| _| || __| _ | |__ | | |
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# |___|___||__| |____|__||____|___._| |_______| |___|
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#
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#
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# ARTICA SOLUCIONES TECNOLOGICAS
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# http://www.artica.es
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#
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# v1r3
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# Change log (v1r3 - Ago 2015)
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# * Solved lot of issues present in r2
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# * Added support for wildcards
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# * Identified problem with perl <5.13. It won't work on old Perl. Use binary!
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###############################################################################
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use strict;
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use Data::Dumper;
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use File::Basename;
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# Used to calculate the MD5 checksum of a string
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use constant MOD232 => 2**32;
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my @config_file; # Stores the config file contents, line by line
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my %plugin_setup; # Hash with this plugin setup
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my $archivo_cfg = $ARGV[0]; # External main config file
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my $log_items = 0; # Stores total of log definitions in the conf file
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my $reg_exp = 0; # Total regexps
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my $version;
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$version = "v1r3"; # Actual plugin's version
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###############################################################################
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# SUB load_external_setup
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# Receives a configuration filename to load in the configuration hash
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###############################################################################
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sub load_external_setup ($){
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my $archivo_cfg = $_[0];
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my $buffer_line;
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# Collect items from config file and put in an array
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if (! open (CFG, "< $archivo_cfg")) {
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print "[ERROR] Error opening configuration file $archivo_cfg: $!.\n";
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exit 1;
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}
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while (<CFG>){
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$buffer_line = $_;
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# Parse configuration file, this is specially difficult because can contain regexp, with many things
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if ($buffer_line !=~ /^\#/){ # begins with anything except # (for commenting)
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if ($buffer_line =~ m/(.+)\s(.*)/){
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push @config_file, $buffer_line;
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}
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}
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}
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close (CFG);
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}
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###############################################################################
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# MD5 leftrotate function. See http://en.wikipedia.org/wiki/MD5#Pseudocode.
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###############################################################################
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sub leftrotate ($$) {
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my ($x, $c) = @_;
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return (0xFFFFFFFF & ($x << $c)) | ($x >> (32 - $c));
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}
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###############################################################################
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# Initialize some variables needed by the MD5 algorithm.
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# See http://en.wikipedia.org/wiki/MD5#Pseudocode.
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###############################################################################
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my (@R, @K);
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sub md5_init () {
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# R specifies the per-round shift amounts
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@R = (7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22,
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5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20,
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4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23,
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6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21);
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# Use binary integer part of the sines of integers (radians) as constants
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for (my $i = 0; $i < 64; $i++) {
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$K[$i] = floor(abs(sin($i + 1)) * MOD232);
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}
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}
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###############################################################################
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# Return the MD5 checksum of the given string.
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# Pseudocode from http://en.wikipedia.org/wiki/MD5#Pseudocode.
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###############################################################################
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sub md5 ($) {
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my $str = shift;
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# Note: All variables are unsigned 32 bits and wrap modulo 2^32 when calculating
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# Initialize variables
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my $h0 = 0x67452301;
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my $h1 = 0xEFCDAB89;
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my $h2 = 0x98BADCFE;
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my $h3 = 0x10325476;
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# Pre-processing
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my $msg = unpack ("B*", pack ("A*", $str));
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my $bit_len = length ($msg);
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# Append "1" bit to message
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$msg .= '1';
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# Append "0" bits until message length in bits ≡ 448 (mod 512)
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$msg .= '0' while ((length ($msg) % 512) != 448);
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# Append bit /* bit, not byte */ length of unpadded message as 64-bit little-endian integer to message
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$msg .= unpack ("B64", pack ("VV", $bit_len));
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# Process the message in successive 512-bit chunks
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for (my $i = 0; $i < length ($msg); $i += 512) {
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my @w;
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my $chunk = substr ($msg, $i, 512);
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# Break chunk into sixteen 32-bit little-endian words w[i], 0 <= i <= 15
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for (my $j = 0; $j < length ($chunk); $j += 32) {
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push (@w, unpack ("V", pack ("B32", substr ($chunk, $j, 32))));
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}
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# Initialize hash value for this chunk
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my $a = $h0;
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my $b = $h1;
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my $c = $h2;
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my $d = $h3;
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my $f;
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my $g;
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# Main loop
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for (my $y = 0; $y < 64; $y++) {
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if ($y <= 15) {
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$f = $d ^ ($b & ($c ^ $d));
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$g = $y;
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}
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elsif ($y <= 31) {
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$f = $c ^ ($d & ($b ^ $c));
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$g = (5 * $y + 1) % 16;
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}
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elsif ($y <= 47) {
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$f = $b ^ $c ^ $d;
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$g = (3 * $y + 5) % 16;
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}
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else {
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$f = $c ^ ($b | (0xFFFFFFFF & (~ $d)));
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$g = (7 * $y) % 16;
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}
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my $temp = $d;
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$d = $c;
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$c = $b;
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$b = ($b + leftrotate (($a + $f + $K[$y] + $w[$g]) % MOD232, $R[$y])) % MOD232;
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$a = $temp;
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}
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# Add this chunk's hash to result so far
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$h0 = ($h0 + $a) % MOD232;
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$h1 = ($h1 + $b) % MOD232;
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$h2 = ($h2 + $c) % MOD232;
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$h3 = ($h3 + $d) % MOD232;
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}
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# Digest := h0 append h1 append h2 append h3 #(expressed as little-endian)
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return unpack ("H*", pack ("V", $h0)) . unpack ("H*", pack ("V", $h1)) . unpack ("H*", pack ("V", $h2)) . unpack ("H*", pack ("V", $h3));
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}
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###############################################################################
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# SUB log_msg
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# Print a log message.
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###############################################################################
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sub log_msg ($) {
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my $log_msg = $_[0];
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if (! open (LOG, "> ".$plugin_setup{"logfile"})) {
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print "[ERROR] Error opening internal logfile ".$plugin_setup{"logfile"}."\n";
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exit 1;
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}
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print LOG $log_msg;
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close (LOG);
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}
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###############################################################################
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# SUB error_msg
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# Print a log message and exit (fatal log error message)
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###############################################################################
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sub error_msg ($) {
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my $log_msg = $_[0];
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log_msg ($log_msg);
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}
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###############################################################################
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# parse_config
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#
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# This function load configuration tokens and store in a global hash
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# called %plugin_setup accesible on all program.
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###############################################################################
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sub parse_config {
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my $tbuf;
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my $log_block = 0;
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my $reg_exp_rule = 0;
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my $parametro;
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# Some default options
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$plugin_setup{"index_dir"} = "/tmp";
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$plugin_setup{"logfile"} = "/tmp/pandora_logparser.log";
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$plugin_setup{"log_rotate_mode"}="inode";
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foreach (@config_file){
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$parametro = $_;
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if ($parametro =~ m/^include\s+(.*)$/i) {
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load_external_setup ($1);
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}
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if ($parametro =~ m/^index_dir\s+(.*)$/i) {
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$plugin_setup{"index_dir"} = $1;
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}
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if ($parametro =~ m/^logfile\s+(.*)$/i) {
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$plugin_setup{"logfile"} = $1;
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}
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if ($parametro =~ m/^log\_rotate\_mode\s+(.*)$/i) {
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$plugin_setup{"log_rotate_mode"} = $1;
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}
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# Detect begin of log definition
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if ($parametro =~ m/^log\_begin/i) {
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$log_block = 1;
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}
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# Log definition parsing mode
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if ($log_block == 1){
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if ($parametro =~ m/^log\_module\_name\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"name"} = $1;
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}
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if ($parametro =~ m/^log\_type\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"type"} = $1;
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}
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if ($parametro =~ m/^log\_create\_module\_for\_each\_log/i) {
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$plugin_setup{"log"}->[$log_items]->{"module_for_each_log"} = 1;
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} else {
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if (!defined($plugin_setup{"log"}->[$log_items]->{"module_for_each_log"})){
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$plugin_setup{"log"}->[$log_items]->{"module_for_each_log"} = 0;
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}
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}
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if ($parametro =~ m/^log\_force\_readall/i) {
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$plugin_setup{"log"}->[$log_items]->{"readall"} = 1;
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} else {
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if (!defined($plugin_setup{"log"}->[$log_items]->{"readall"})){
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$plugin_setup{"log"}->[$log_items]->{"readall"} = 0;
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}
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}
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if ($parametro =~ m/^log\_location\_file\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"log_location_file"} = $1;
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}
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if ($parametro =~ m/^log\_location\_exec\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"log_location_exec"} = $1;
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}
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if ($parametro =~ m/^log\_location\_multiple\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"log_location_multiple"} = $1;
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}
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if ($parametro =~ m/^log\_description\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"description"} = $1;
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}
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if ($parametro =~ m/^log\_regexp\_begin/i) {
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$log_block = 2;
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$reg_exp_rule = 0;
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}
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if ($parametro =~ m/^log\_end/i) {
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$log_items++;
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$log_block = 0;
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$reg_exp=0;
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}
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}
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if ($log_block == 2){
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if ($parametro =~ m/^log_regexp_severity\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"regexp"}->{$reg_exp}->{"severity"} = $1;
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}
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if ($parametro =~ m/^log_regexp_rule\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"regexp"}->{$reg_exp}->{"rule"} = $1;
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}
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if ($parametro =~ m/^log_return_message\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"regexp"}->{$reg_exp} -> {"message"} = $1;
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}
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if ($parametro =~ m/^log_action\s+(.*)$/i) {
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$plugin_setup{"log"}->[$log_items]->{"regexp"}->{$reg_exp} -> {"action"} = $1;
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}
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if ($parametro =~ m/^log\_regexp\_end/i) {
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$log_block = 1;
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$reg_exp++;
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}
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}
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}
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}
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###############################################################################
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# clean_blank
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#
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# This function return a string without blanspaces, given a simple text string
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###############################################################################
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sub clean_blank($){
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my $input = $_[0];
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$input =~ s/[\s\r\n]*//g;
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return $input;
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}
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###############################################################################
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# SUB load_idx
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#
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# Load index file and Logfile
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###############################################################################
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sub load_idx ($$) {
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my $Idx_file = $_[0];
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my $Log_file = $_[1];
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my $line;
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my $current_ino;
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my $current_size;
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my $Idx_pos;
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my $Idx_ino;
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log_msg("Loading index file $Idx_file");
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open(IDXFILE, $Idx_file) || error_msg("Error opening file $Idx_file: " . $!);
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# Read position and date
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$line = <IDXFILE>;
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($Idx_pos, $Idx_ino) = split(' ', $line);
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close(IDXFILE);
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# Reset the file index if the file has changed
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my $current_ino = (stat($Log_file))[1];
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my $current_size = (stat($Log_file))[7];
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if (($current_ino != $Idx_ino) || ($current_size < $Idx_pos)) {
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log_msg("File changed, resetting index");
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$Idx_pos = 0;
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$Idx_ino = $current_ino;
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}
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return ($Idx_pos, $Idx_ino);
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}
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###############################################################################
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# SUB save_idx
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#
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# Save index file, fiven idxfile, logfile, idxpos and idxinode
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###############################################################################
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sub save_idx ($$$$) {
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my $Idx_file = $_[0];
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my $Log_file = $_[1];
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my $Idx_pos = $_[2];
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my $Idx_ino = $_[3];
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log_msg("Saving index file $Idx_file");
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open(IDXFILE, "> $Idx_file") || error_msg("Error opening file $Idx_file: ". $!);
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print (IDXFILE $Idx_pos . " " . $Idx_ino);
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close(IDXFILE);
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return;
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}
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###############################################################################
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# SUB create_idx
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#
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# Create index file.
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###############################################################################
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sub create_idx ($$) {
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my $Idx_file = $_[0];
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my $Log_file = $_[1];
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my $first_line;
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log_msg("Creating index file $Idx_file");
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open(LOGFILE, $Log_file) || error_msg("Error opening file $Log_file: " . $!);
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# Go to EOF and save the position
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seek(LOGFILE, 0, 2);
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my $Idx_pos = tell(LOGFILE);
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close(LOGFILE);
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# Save the file inode number
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my $Idx_ino = (stat($Log_file))[1];
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# Sometimes returns "blank" inode ¿?
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if ($Idx_ino eq ""){
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$Idx_ino = 0;
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}
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# Save the index file
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save_idx($Idx_file, $Log_file, $Idx_pos, $Idx_ino);
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return;
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}
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###############################################################################
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# SUB parse_log
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#
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# Parse log file starting from position $Idx_pos.
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###############################################################################
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sub parse_log ($$$$$$$$) {
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my $Idx_file = $_[0];
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my $Log_file = $_[1];
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my $Idx_pos = $_[2];
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my $Idx_ino = $_[3];
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my $Module_name = $_[4];
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my $type = $_[5];
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my $regexp_collection = $_[6]; # hash of rules
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my $Description = $_[7];
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my $line;
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my $count = 0;
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my $action = "";
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my $severity = "";
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my $rule = "";
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my $buffer = "";
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# Parse log file
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# Open log file for reading
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open(LOGFILE, $Log_file) || error_msg("Error opening file $Log_file: " . $!);
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# Go to starting position
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seek(LOGFILE, $Idx_pos, 0);
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if ($type eq "log_module"){
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$buffer = "<log_module>\n";
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$buffer .= "<source><![CDATA[" . $Module_name . "]]></source>\n";
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$buffer .= "<data><![CDATA[";
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} else {
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$buffer .= "<module>\n";
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$buffer .= "<name><![CDATA[" . $Module_name . "]]></name>\n";
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$buffer .= "<description><![CDATA[" . $Description . "]]></description>\n";
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if ($type eq "return_ocurrences"){
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$buffer .= "<type>generic_data</type>\n";
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} else {
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$buffer .= "<type><![CDATA[async_string]]></type>\n";
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$buffer .= "<datalist>\n";
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}
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}
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while ($line = <LOGFILE>) {
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while (my ($key, $value) = each (%{$regexp_collection})) {
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# For each regexp block
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$rule = $value->{"rule"};
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#print "[DEBUG] Action: ".$value->{"action"} ."\n";
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#print "[DEBUG] Severity: ".$value->{"severity"} ."\n";
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#print "[DEBUG] Message: ".$value->{"message"} ."\n";
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#print "[DEBUG] Rule: ".$value->{"rule"} ."\n";
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if ($line =~ m/$rule/i) {
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# Remove the trailing '\n'
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chop($line);
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# depending on type:
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if ($type eq "return_message"){
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$buffer .= "<data><value><![CDATA[".$value->{"message"}."]]></value></data>\n";
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}
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if ($type eq "return_lines"){
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$buffer .= "<data><value><![CDATA[".$line."]]></value></data>\n";
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}
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if ($type eq "log_module") {
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$line =~ s/\]\]/]]]]><![CDATA[/g;
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$buffer .= $line."\n";
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}
|
|
|
|
# Critical severity will prevail over other matches
|
|
if ($severity eq ""){
|
|
$severity = $value->{"severity"};
|
|
} elsif ($severity ne "CRITICAL"){
|
|
$severity = $value->{"severity"};
|
|
}
|
|
|
|
$action = $value->{"action"};
|
|
$count++;
|
|
}
|
|
}
|
|
}
|
|
if ($type ne "log_module"){
|
|
if ($type eq "return_ocurrences"){
|
|
$buffer .= "<data><![CDATA[".$count."]]></data>\n";
|
|
} else {
|
|
$buffer .= "</datalist>\n";
|
|
}
|
|
}
|
|
|
|
# Execute action if any match (always for last match)
|
|
if ($count > 0){
|
|
`$action`;
|
|
}
|
|
|
|
if ($type ne "log_module"){
|
|
# Write severity field in XML
|
|
if ($severity ne ""){
|
|
$buffer .= "<status>$severity</status>\n";
|
|
}
|
|
|
|
# End XML
|
|
$buffer .= "</module>\n";
|
|
}else {
|
|
$buffer .= "]]></data>\n";
|
|
$buffer .= "</log_module>\n";
|
|
}
|
|
|
|
# Update Index
|
|
$Idx_pos = tell(LOGFILE);
|
|
close(LOGFILE);
|
|
|
|
# Save the index file
|
|
save_idx($Idx_file, $Log_file, $Idx_pos, $Idx_ino);
|
|
|
|
# There is no need to write XML, no data.
|
|
if (($count eq 0) && ($type ne "return_ocurrences")){
|
|
return;
|
|
}
|
|
|
|
# Else, show the XML file
|
|
print $buffer;
|
|
|
|
return;
|
|
}
|
|
|
|
###############################################################################
|
|
# SUB print_module
|
|
#
|
|
# Dump a XML module
|
|
###############################################################################
|
|
|
|
sub print_module ($$$$$){
|
|
my $MODULE_NAME = $_[0];
|
|
my $MODULE_TYPE = $_[1];
|
|
my $MODULE_VALUE = $_[2];
|
|
my $MODULE_DESC = $_[3];
|
|
my $MODULE_STATUS = $_[4];
|
|
|
|
# If not a string type, remove all blank spaces!
|
|
if ($MODULE_TYPE !=~ m/string/){
|
|
$MODULE_VALUE = clean_blank($MODULE_VALUE);
|
|
}
|
|
|
|
print "<module>\n";
|
|
print "<name>$MODULE_NAME</name>\n";
|
|
print "<type>$MODULE_TYPE</type>\n";
|
|
print "<data><![CDATA[$MODULE_VALUE]]></data>\n";
|
|
|
|
if ($MODULE_STATUS ne ""){
|
|
print "<status><![CDATA[$MODULE_STATUS]]></status>\n";
|
|
}
|
|
|
|
print "<description><![CDATA[$MODULE_DESC]]></description>\n";
|
|
print "</module>\n";
|
|
|
|
}
|
|
|
|
|
|
###############################################################################
|
|
# SUB manage_logfile
|
|
#
|
|
# Do the stuff with a given file and options
|
|
###############################################################################
|
|
#manage_logfile($log_filename, $module_name, $readall, $type, $regexp);
|
|
|
|
sub manage_logfile ($$$$$$){
|
|
|
|
my $Idx_pos;
|
|
my $Idx_ino;
|
|
my $Idx_md5;
|
|
my $Idx_file;
|
|
|
|
my $log_filename = $_[0];
|
|
my $module_name = $_[1];
|
|
my $readall = $_[2];
|
|
my $type = $_[3];
|
|
my $regexp = $_[4];
|
|
my $description = $_[5];
|
|
|
|
my $index_file_converted = $log_filename;
|
|
# Avoid / \ | and : characters
|
|
$index_file_converted =~ s/\//_/g;
|
|
$index_file_converted =~ s/\\/_/g;
|
|
$index_file_converted =~ s/\|/_/g;
|
|
$index_file_converted =~ s/\:/_/g;
|
|
$module_name =~ s/\//_/g;
|
|
$module_name =~ s/\\/_/g;
|
|
$module_name =~ s/\|/_/g;
|
|
$module_name =~ s/\:/_/g;
|
|
|
|
# Create index file if it does not exist
|
|
if($^O =~ /win/i){
|
|
$Idx_file = $plugin_setup{"index_dir"} . "\\". $module_name . "_" . $index_file_converted . "\.idx";
|
|
}else{
|
|
$Idx_file = $plugin_setup{"index_dir"} . "/". $module_name . "_" . $index_file_converted . "\.idx";
|
|
}
|
|
|
|
# if force read all is enabled,
|
|
if (! -e $Idx_file) {
|
|
create_idx($Idx_file, $log_filename);
|
|
|
|
# Load index file
|
|
($Idx_pos, $Idx_ino) = load_idx ($Idx_file, $log_filename);
|
|
|
|
if ($readall == 1){
|
|
$Idx_pos = 0;
|
|
}
|
|
} else {
|
|
# Load index file
|
|
($Idx_pos, $Idx_ino) = load_idx ($Idx_file, $log_filename);
|
|
}
|
|
|
|
# Parse log file
|
|
parse_log($Idx_file, $log_filename, $Idx_pos, $Idx_ino, $module_name, $type, $regexp, $description);
|
|
|
|
}
|
|
|
|
###############################################################################
|
|
###############################################################################
|
|
######################## MAIN PROGRAM CODE ####################################
|
|
###############################################################################
|
|
###############################################################################
|
|
|
|
# Parse external configuration file
|
|
# -------------------------------------------
|
|
|
|
# Load config file from command line
|
|
if ($#ARGV == -1 ){
|
|
print "I need at least one parameter: Complete path to external configuration file \n";
|
|
exit;
|
|
}
|
|
|
|
# Check for file
|
|
if ( ! -f $archivo_cfg ) {
|
|
printf "\n [ERROR] Cannot open configuration file at $archivo_cfg. \n\n";
|
|
exit 1;
|
|
}
|
|
|
|
load_external_setup ($archivo_cfg);
|
|
parse_config;
|
|
|
|
#print Dumper(%plugin_setup);
|
|
|
|
my $log_filename;
|
|
my $log_filename_multiple;
|
|
my $log_create_module_for_each_log;
|
|
my $module_name;
|
|
my $module_name_multiple;
|
|
my $module_type;
|
|
my $readall;
|
|
my $type;
|
|
my $regexp;
|
|
my $description;
|
|
|
|
|
|
# Parse external configuration file
|
|
# -------------------------------------------
|
|
|
|
# Please note that following sentence is not compatible in perl 5.10, it requires
|
|
# Perl 5.13 or higher.
|
|
while (my ($key, $value) = each (@{$plugin_setup{"log"}})) {
|
|
|
|
# For each log defined, read data from hash tree
|
|
#print "[DEBUG] Key: $key\n";
|
|
#print "[DEBUG] Name: ".$value->{name} . "\n";
|
|
#print "[DEBUG] Log Location: ".$value->{"log_location_file"} . "\n";
|
|
#print "[DEBUG] Log Location exec: ".$value->{"log_location_exec"} . "\n";
|
|
#print "[DEBUG] Log Location multiple: ".$value->{"log_location_multiple"} . "\n";
|
|
#print "[DEBUG] Log readall: ".$value->{"readall"} . "\n";
|
|
#print "[DEBUG] Type: ".$value->{"type"} . "\n";
|
|
#print "[DEBUG] Regexp: ".$value->{"regexp"} . "\n";
|
|
|
|
if (!defined($value->{"name"})) {
|
|
print_module ($module_name, "async_string", "", "Missing name in log definition. Skipped", "");
|
|
next;
|
|
}
|
|
|
|
$module_name = $value->{"name"};
|
|
$readall = $value->{"readall"};
|
|
$type = $value->{"type"};
|
|
$regexp = $value->{"regexp"};
|
|
$description = $value->{"description"};
|
|
|
|
# Check if filename exists
|
|
|
|
if (defined($value->{"log_location_file"})){
|
|
$log_filename = $value->{"log_location_file"};
|
|
manage_logfile ($log_filename, $module_name, $readall, $type, $regexp, $description);
|
|
|
|
} elsif (defined($value->{"log_location_exec"})){
|
|
$log_filename = `$value->{"log_location_exec"}`;
|
|
manage_logfile ($log_filename, $module_name, $readall, $type, $regexp, $description);
|
|
}
|
|
|
|
# Multiple files
|
|
if (defined($value->{"log_location_multiple"})){
|
|
$log_filename_multiple = $value->{"log_location_multiple"};
|
|
$log_create_module_for_each_log = $value->{"module_for_each_log"};
|
|
my @buffer;
|
|
if($^O =~ /win/i){
|
|
@buffer = `dir "$log_filename_multiple" /b /a-d`;
|
|
}else{
|
|
@buffer = `ls -d "$log_filename_multiple"`;
|
|
}
|
|
foreach (@buffer) {
|
|
# This should solve problems with carriage return in Unix, Linux and Windooze
|
|
chomp($_);
|
|
chop($_) if ($_ =~ m/\r$/);
|
|
$log_filename = $_;
|
|
$module_name_multiple = $module_name;
|
|
if ($log_create_module_for_each_log == 1){
|
|
# Create a dynamic module name with the name of the logfile
|
|
$module_name_multiple = $log_filename;
|
|
$module_name_multiple =~ s/\//_/g;
|
|
$module_name_multiple = $module_name . "_" . $module_name_multiple;
|
|
}
|
|
$log_filename = $log_filename_multiple . $_;
|
|
manage_logfile ($log_filename, $module_name_multiple, $readall, $type, $regexp, $description);
|
|
}
|
|
}
|
|
|
|
print "\n";
|
|
|
|
}
|