/usr/bin/slony_show_configuration is in slony1-2-bin 2.2.4-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110  | #!/usr/bin/perl
#
# Author: Christopher Browne
# Copyright 2004-2009 Afilias Canada
# This script simply displays an overview of node configuration
# for a given SLONY node set
use Getopt::Long;
use Switch;
# Defaults
$CONFIG_FILE = '/etc/slony1/slon_tools.conf';
$SHOW_USAGE  = 0;
# Read command-line options
GetOptions("config=s" => \$CONFIG_FILE,
           "help"     => \$SHOW_USAGE);
my $USAGE =
"Usage: slony_show_configuration [--config file] [node# nodeproperty]
  nodeproperty valid values:
        host : return host
        port : return connection port
        user : return connection user
        dbname : return connecton database name
        noforward : return noforward configuration
        parent : return parent node
        dsn : return dsn connection string
        cluster : return cluster name
        node-config-file : return node config file name
        node-config-file-quotemeta : retun quoted node config file name
        config-file : return slon-tools config file name
        config-file-quotemeta : retun quoted slon-tools config file name
";
if ($SHOW_USAGE) {
  die $USAGE;
}
require '/usr/share/slony1/slon-tools.pm';
require $CONFIG_FILE;
if ( scalar(@ARGV) == 0 ) {
  print_configurations();
} elsif ( scalar(@ARGV) == 2 ) {
    $nodenum = $ARGV[0];
    $nodeproperty = $ARGV[1];
    if ($nodenum =~ /^(?:node)?(\d+)$/) {
      $nodenum = $1;
    }
    print_property_value();
} else {
  die $USAGE;
}
sub print_configurations {
  print "Slony Configuration\n-------------------------------------\n";
  if ($ENV{"SLONYNODES"}) {
    print "With node configuration from ", $ENV{"SLONYNODES"}, "\n";
  }
  if ($ENV{"SLONYSET"}) {
    print "With set configuration from ", $ENV{"SLONYSET"}, "\n";
  }
  print qq{
Slony-I Cluster: $CLUSTER_NAME
Logs stored under $LOGDIR
Slony Binaries in: /usr/bin
};
  if ($APACHE_ROTATOR) {
    print "Rotating logs using Apache Rotator: $APACHE_ROTATOR\n";
  }
  print qq{
Node information
--------------------------------
};
  for $node (@NODES) {
    printf("Node: %2d Host: %15s User: %8s Port: %4d Forwarding? %4s Parent: %2d Database: %10s\n         DSN: %s\n",
         $node, $HOST[$node], $USER[$node], $PORT[$node], $NOFORWARD[$node],
         $PARENT[$node], $DBNAME[$node], $DSN[$node]);
  }
}
sub print_property_value {
  switch($nodeproperty) {
    # connection configs
    case "host"      { print $HOST[$nodenum], "\n"; }
    case "port"      { print $PORT[$nodenum], "\n"; }
    case "user"      { print $USER[$nodenum], "\n"; }
    case "dbname"    { print $DBNAME[$nodenum], "\n"; }
    case "dsn"       { print $DSN[$nodenum], "\n"; }
    # replication configs
    case "parent"    { print $PARENT[$nodenum], "\n"; }
    case "noforward" { print $NOFORWARD[$nodenum], "\n"; }
    # Misc
    case "cluster"   { print $CLUSTER_NAME, "\n"; }
    # config files
    case "node-config-file"           { print $CONFIG[$nodenum], "\n"; }
    case "node-config-file-quotemeta" { print quotemeta( $CONFIG[$nodenum] ), "\n"; }
    case "config-file"           { print $CONFIG_FILE, "\n"; }
    case "config-file-quotemeta" { print quotemeta( $CONFIG_FILE ), "\n"; }
    else                         { print $USAGE; }
  }
}
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