netgraph

   1 #!/usr/bin/env perl
   2
   3 #=======================================================================
   4 # netgraph
   5 # File ID: d2d6c67a-48f9-11e0-a72d-c3b2f04a5e88
   6 # Generate GraphViz DOT files from traceroute(1) output
   7 #
   8 # Character set: UTF-8
   9 # ©opyleft 2011– Øyvind A. Holm <sunny@sunbase.org>
  10 # License: GNU General Public License version 2 or later, see end of
  11 # file for legal stuff.
  12 #=======================================================================
  13
  14 use strict;
  15 use warnings;
  16 use Getopt::Long;
  17
  18 $| = 1;
  19
  20 our $Debug = 0;
  21
  22 our %Opt = (
  23
  24     'colour' => "",
  25     'debug' => 0,
  26     'help' => 0,
  27     'style' => "",
  28     'verbose' => 0,
  29     'version' => 0,
  30
  31 );
  32
  33 our $progname = $0;
  34 $progname =~ s/^.*\/(.*?)$/$1/;
  35 our $VERSION = "0.00";
  36
  37 Getopt::Long::Configure("bundling");
  38 GetOptions(
  39
  40     "colour|c=s" => \$Opt{'colour'},
  41     "debug" => \$Opt{'debug'},
  42     "help|h" => \$Opt{'help'},
  43     "style|s=s" => \$Opt{'style'},
  44     "verbose|v+" => \$Opt{'verbose'},
  45     "version" => \$Opt{'version'},
  46
  47 ) || die("$progname: Option error. Use -h for help.\n");
  48
  49 $Opt{'debug'} && ($Debug = 1);
  50 $Opt{'help'} && usage(0);
  51 if ($Opt{'version'}) {
  52     print_version();
  53     exit(0);
  54 }
  55
  56 my @Hosts = ();
  57
  58 while (<>) {
  59     my $Line = $_;
  60     if ($Line =~ /^\s*.*?(\d+\.\d+\.\d+\d+\.\d+)\s/) {
  61         push(@Hosts, sprintf("\"%s\"", $1));
  62     }
  63 }
  64 my $attr = "";
  65 $attr .= $Opt{'colour'} ? " color=\"$Opt{'colour'}\"" : "";
  66 $attr .= $Opt{'style'} ? " style=\"$Opt{'style'}\"" : "";
  67 $attr =~ s/^\s+//;
  68 length($attr) && ($attr = " [$attr]");
  69 print(join(" -> ", @Hosts),
  70     $attr,
  71     ";\n"
  72 );
  73
  74 sub print_version {
  75     # Print program version {{{
  76     print("$progname v$VERSION\n");
  77     # }}}
  78 } # print_version()
  79
  80 sub usage {
  81     # Send the help message to stdout {{{
  82     my $Retval = shift;
  83
  84     if ($Opt{'verbose'}) {
  85         print("\n");
  86         print_version();
  87     }
  88     print(<<END);
  89
  90 Usage: $progname [options] [file [files [...]]]
  91
  92 Options:
  93
  94   -c X, --colour X
  95     Use colour X on this graph.
  96   -h, --help
  97     Show this help.
  98   -s X, --style X
  99     Use line style X. Can contain the values
 100       solid (default)
 101       dashed
 102       dotted
 103       bold
 104   -v, --verbose
 105     Increase level of verbosity. Can be repeated.
 106   --version
 107     Print version information.
 108   --debug
 109     Print debugging messages.
 110
 111 END
 112     exit($Retval);
 113     # }}}
 114 } # usage()
 115
 116 sub msg {
 117     # Print a status message to stderr based on verbosity level {{{
 118     my ($verbose_level, $Txt) = @_;
 119
 120     if ($Opt{'verbose'} >= $verbose_level) {
 121         print(STDERR "$progname: $Txt\n");
 122     }
 123     # }}}
 124 } # msg()
 125
 126 sub D {
 127     # Print a debugging message {{{
 128     $Debug || return;
 129     my @call_info = caller;
 130     chomp(my $Txt = shift);
 131     my $File = $call_info[1];
 132     $File =~ s#\\#/#g;
 133     $File =~ s#^.*/(.*?)$#$1#;
 134     print(STDERR "$File:$call_info[2] $$ $Txt\n");
 135     return("");
 136     # }}}
 137 } # D()
 138
 139 __END__
 140
 141 # Plain Old Documentation (POD) {{{
 142
 143 =pod
 144
 145 =head1 NAME
 146
 147
 148
 149 =head1 SYNOPSIS
 150
 151  [options] [file [files [...]]]
 152
 153 =head1 DESCRIPTION
 154
 155
 156
 157 =head1 OPTIONS
 158
 159 =over 4
 160
 161 =item B<-h>, B<--help>
 162
 163 Print a brief help summary.
 164
 165 =item B<-v>, B<--verbose>
 166
 167 Increase level of verbosity. Can be repeated.
 168
 169 =item B<--version>
 170
 171 Print version information.
 172
 173 =item B<--debug>
 174
 175 Print debugging messages.
 176
 177 =back
 178
 179 =head1 BUGS
 180
 181
 182
 183 =head1 AUTHOR
 184
 185 Made by Øyvind A. Holm S<E<lt>sunny@sunbase.orgE<gt>>.
 186
 187 =head1 COPYRIGHT
 188
 189 Copyleft © Øyvind A. Holm E<lt>sunny@sunbase.orgE<gt>
 190 This is free software; see the file F<COPYING> for legalese stuff.
 191
 192 =head1 LICENCE
 193
 194 This program is free software: you can redistribute it and/or modify it
 195 under the terms of the GNU General Public License as published by the
 196 Free Software Foundation, either version 2 of the License, or (at your
 197 option) any later version.
 198
 199 This program is distributed in the hope that it will be useful, but
 200 WITHOUT ANY WARRANTY; without even the implied warranty of
 201 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 202 See the GNU General Public License for more details.
 203
 204 You should have received a copy of the GNU General Public License along
 205 with this program.
 206 If not, see L<http://www.gnu.org/licenses/>.
 207
 208 =head1 SEE ALSO
 209
 210 =cut
 211
 212 # }}}
 213
 214 # vim: set fenc=UTF-8 ft=perl fdm=marker ts=4 sw=4 sts=4 et fo+=w :