pingstat

   1 #!/usr/bin/env perl
   2
   3 #=======================================================================
   4 # pingstat
   5 # File ID: ba10e77e-f743-11dd-adac-000475e441b9
   6 # Creates ping(8) statistics for crappy connections.
   7 #
   8 # Character set: UTF-8
   9 # ©opyleft 2005– 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 use Fcntl ':flock';
  18 use File::Path;
  19
  20 $| = 1;
  21
  22 our $Debug = 0;
  23
  24 our %Opt = (
  25
  26     'debug' => 0,
  27     'help' => 0,
  28     'verbose' => 0,
  29     'version' => 0,
  30
  31 );
  32
  33 our $progname = $0;
  34 $progname =~ s/^.*\/(.*?)$/$1/;
  35 our $VERSION = "0.00";
  36
  37 Getopt::Long::Configure("bundling");
  38 GetOptions(
  39
  40     "debug" => \$Opt{'debug'},
  41     "help|h" => \$Opt{'help'},
  42     "verbose|v+" => \$Opt{'verbose'},
  43     "version" => \$Opt{'version'},
  44
  45 ) || die("$progname: Option error. Use -h for help.\n");
  46
  47 $Opt{'debug'} && ($Debug = 1);
  48 $Opt{'help'} && usage(0);
  49 if ($Opt{'version'}) {
  50     print_version();
  51     exit(0);
  52 }
  53
  54 my $Host = "194.248.216.19";
  55 my $log_dir = "$ENV{HOME}/log/pingstat";
  56 my $log_file = "$log_dir/pingstat.log";
  57 my $lock_dir = "/var/lock/pingstat.LOCK";
  58 my $CMD_PING = "/bin/ping -c 1 $Host";
  59 my $Delay = 30;
  60
  61 (-d $log_dir) || mkpath($log_dir) || die("$progname: $log_dir: Cannot create directory: $!\n");
  62
  63 my $last_time = 0;
  64
  65 mkdir($lock_dir) || die("$lock_dir: Lockdir already exists.\n");
  66
  67 while (1) {
  68     my $curr_time = time;
  69     my ($Sec, $Min, $Hour, $Day, $Mon, $Year, $Wday, $Yday, $is_dst) =
  70         gmtime($curr_time);
  71     my $Date = sprintf("%04u-%02u-%02uT%02u:%02u:%02uZ",
  72                        $Year + 1900, $Mon + 1, $Day, $Hour, $Min, $Sec);
  73     $Year += 1900; # Weird piece of shit
  74     $Mon += 1;     # Urgh
  75     if (open(PipeFP, "$CMD_PING |")) {
  76         my $Data = join("", <PipeFP>);
  77         close(PipeFP);
  78         $Data =~ s/\n/\t/gs;
  79         if (open(LogFP, ">>", $log_file)) {
  80             if (flock(LogFP, LOCK_EX)) {
  81                 print(LogFP "$Date\t$Data\n");
  82                 close(LogFP);
  83             } else {
  84                 warn("$progname: $log_file: Cannot lock file: $!\n");
  85             }
  86         } else {
  87             warn("$progname: $log_file: Cannot create or append to file: $!\n");
  88         }
  89     } else {
  90         warn("$progname: \"$CMD_PING\": Could not open pipe: $!\n");
  91     }
  92     while (time < ($curr_time + $Delay)) {
  93         # NOP
  94     }
  95 }
  96
  97 sub print_version {
  98     # Print program version {{{
  99     print("$progname v$VERSION\n");
 100     # }}}
 101 } # print_version()
 102
 103 sub usage {
 104     # Send the help message to stdout {{{
 105     my $Retval = shift;
 106
 107     if ($Opt{'verbose'}) {
 108         print("\n");
 109         print_version();
 110     }
 111     print(<<END);
 112
 113 Usage: $progname [options] [file [files [...]]]
 114
 115 Options:
 116
 117   -h, --help
 118     Show this help.
 119   -v, --verbose
 120     Increase level of verbosity. Can be repeated.
 121   --version
 122     Print version information.
 123   --debug
 124     Print debugging messages.
 125
 126 END
 127     exit($Retval);
 128     # }}}
 129 } # usage()
 130
 131 sub msg {
 132     # Print a status message to stderr based on verbosity level {{{
 133     my ($verbose_level, $Txt) = @_;
 134
 135     if ($Opt{'verbose'} >= $verbose_level) {
 136         print(STDERR "$progname: $Txt\n");
 137     }
 138     # }}}
 139 } # msg()
 140
 141 sub D {
 142     # Print a debugging message {{{
 143     $Debug || return;
 144     my @call_info = caller;
 145     chomp(my $Txt = shift);
 146     my $File = $call_info[1];
 147     $File =~ s#\\#/#g;
 148     $File =~ s#^.*/(.*?)$#$1#;
 149     print(STDERR "$File:$call_info[2] $$ $Txt\n");
 150     return("");
 151     # }}}
 152 } # D()
 153
 154 __END__
 155
 156 # Plain Old Documentation (POD) {{{
 157
 158 =pod
 159
 160 =head1 NAME
 161
 162
 163
 164 =head1 SYNOPSIS
 165
 166  [options] [file [files [...]]]
 167
 168 =head1 DESCRIPTION
 169
 170
 171
 172 =head1 OPTIONS
 173
 174 =over 4
 175
 176 =item B<-h>, B<--help>
 177
 178 Print a brief help summary.
 179
 180 =item B<-v>, B<--verbose>
 181
 182 Increase level of verbosity. Can be repeated.
 183
 184 =item B<--version>
 185
 186 Print version information.
 187
 188 =item B<--debug>
 189
 190 Print debugging messages.
 191
 192 =back
 193
 194 =head1 BUGS
 195
 196
 197
 198 =head1 AUTHOR
 199
 200 Made by Øyvind A. Holm S<E<lt>sunny@sunbase.orgE<gt>>.
 201
 202 =head1 COPYRIGHT
 203
 204 Copyleft © Øyvind A. Holm E<lt>sunny@sunbase.orgE<gt>
 205 This is free software; see the file F<COPYING> for legalese stuff.
 206
 207 =head1 LICENCE
 208
 209 This program is free software: you can redistribute it and/or modify it
 210 under the terms of the GNU General Public License as published by the
 211 Free Software Foundation, either version 2 of the License, or (at your
 212 option) any later version.
 213
 214 This program is distributed in the hope that it will be useful, but
 215 WITHOUT ANY WARRANTY; without even the implied warranty of
 216 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 217 See the GNU General Public License for more details.
 218
 219 You should have received a copy of the GNU General Public License along
 220 with this program.
 221 If not, see L<http://www.gnu.org/licenses/>.
 222
 223 =head1 SEE ALSO
 224
 225 =cut
 226
 227 # }}}
 228
 229 # vim: set fenc=UTF-8 ft=perl fdm=marker ts=4 sw=4 sts=4 et fo+=w :