From 9dea1d8f08c2fd77e0f6d9034815e5bb68039720 Mon Sep 17 00:00:00 2001
From: garnier-quentin <qgarnier@centreon.com>
Date: Fri, 28 Aug 2015 14:01:46 +0200
Subject: [PATCH] + add alternative Getopt module (Ref #144)

---
 centreon/plugins/alternative/Getopt.pm | 100 +++++++++++++++++++++++++
 centreon/plugins/options.pm            |  24 ++++--
 centreon/plugins/script.pm             |   2 +-
 3 files changed, 120 insertions(+), 6 deletions(-)
 create mode 100644 centreon/plugins/alternative/Getopt.pm

diff --git a/centreon/plugins/alternative/Getopt.pm b/centreon/plugins/alternative/Getopt.pm
new file mode 100644
index 000000000..1061afbfa
--- /dev/null
+++ b/centreon/plugins/alternative/Getopt.pm
@@ -0,0 +1,100 @@
+#
+# Copyright 2015 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package centreon::plugins::alternative::Getopt;
+
+use strict;
+use warnings;
+
+use Exporter;
+use vars qw(@ISA @EXPORT @EXPORT_OK);
+@ISA = qw(Exporter);
+
+BEGIN {
+    @EXPORT    = qw(&GetOptions);
+    @EXPORT_OK = qw();
+}
+
+use vars @EXPORT, @EXPORT_OK;
+
+our $warn_message = 0;
+
+sub get_assigned_value {
+    my (%options) = @_;
+    
+    if (!defined($options{val}) || $options{val} eq '') {
+        if ($options{pos} + 1 < $options{num_args} && $ARGV[$options{pos} + 1] !~ /^--/) {
+            my $val = $ARGV[$options{pos} + 1];
+            splice @ARGV, $options{pos} + 1, 1;
+            return ($options{num_args} - 1, $val);
+        } else {
+            return ($options{num_args}, '');
+        }
+    }
+    
+    return ($options{num_args}, $options{val});
+}
+
+sub GetOptions {
+    my (%opts) = @_;
+    
+    my $search_str = ',' . join(',', keys %opts) . ',';
+    my $num_args = scalar(@ARGV);
+    for (my $i = 0; $i < $num_args;) {
+        if ($ARGV[$i] =~ /^--(.*?)(?:=|$)(.*)/) {
+            my ($option, $value) = ($1, $2);
+            
+            # find type of option
+            if ($search_str !~ /,((?:[^,]*?\|){0,}$option(?:\|.*?){0,}(:.*?){0,1}),/) {
+                warn "Unknown option: $option" if ($warn_message == 1);
+                $i++;
+                next;
+            }
+            
+            my ($option_selected, $type_opt) = ($1, $2);
+            if (!defined($type_opt)) {
+                ${$opts{$option_selected}} = 1;
+            } elsif ($type_opt =~ /:s$/) {
+                ($num_args, my $assigned) = get_assigned_value(num_args => $num_args, pos => $i, val => $value);
+                ${$opts{$option_selected}} = $assigned;
+            } elsif ($type_opt =~ /:s\@$/) {
+                ${$opts{$option . $type_opt}} = [] if (!defined(${$opts{$option . $type_opt}}));
+                ($num_args, my $assigned) = get_assigned_value(num_args => $num_args, pos => $i, val => $value);
+                push @{${$opts{$option_selected}}}, $assigned;
+            } elsif ($type_opt =~ /:s\%$/) {
+                ${$opts{$option . $type_opt}} = {} if (!defined(${$opts{$option . $type_opt}}));
+                ($num_args, my $assigned) = get_assigned_value(num_args => $num_args, pos => $i, val => $value);
+                if ($assigned =~ /^(.*?)=(.*)/) {
+                    ${$opts{$option_selected}}->{$1} = $2;
+                }
+            } 
+            
+            splice @ARGV, $i, 1;
+            $num_args--;
+        } else {
+            warn "argument $ARGV[$i] alone" if ($warn_message == 1);
+            $i++;
+        }
+    }
+}
+
+1;
+
+__END__
diff --git a/centreon/plugins/options.pm b/centreon/plugins/options.pm
index e88a073bd..925095429 100644
--- a/centreon/plugins/options.pm
+++ b/centreon/plugins/options.pm
@@ -22,13 +22,11 @@ package centreon::plugins::options;
 
 use Pod::Usage;
 use Pod::Find qw(pod_where);
-use Getopt::Long;
-Getopt::Long::Configure("pass_through");
-Getopt::Long::Configure('bundling');
-Getopt::Long::Configure('no_auto_abbrev');
 use strict;
 use warnings;
 
+my $alternative = 0;
+
 sub new {
     my $class = shift;
     my $self  = {};
@@ -38,13 +36,29 @@ sub new {
     $self->{options} = {};
     @{$self->{pod_package}} = ();
     $self->{pod_packages_once} = {};
+    
+    if ($alternative == 0) {
+        require Getopt::Long;
+        Getopt::Long->import();
+        Getopt::Long::Configure("pass_through");
+        Getopt::Long::Configure('bundling');
+        Getopt::Long::Configure('no_auto_abbrev');
+    } else {
+        require centreon::plugins::alternative::Getopt;
+        centreon::plugins::alternative::Getopt->import();
+    }
+    
     return $self;
 }
 
 sub set_sanity {
     my ($self, %options) = @_;
     
-    Getopt::Long::Configure('no_pass_through');
+    if ($alternative == 0) {
+        Getopt::Long::Configure('no_pass_through');
+    } else {
+        $centreon::plugins::alternative::Getopt::warn_message = 1;
+    }
     $SIG{__WARN__} = sub { 
         $self->{output}->add_option_msg(short_msg => $_[0]);
         $self->{output}->option_exit(nolabel => 1);
diff --git a/centreon/plugins/script.pm b/centreon/plugins/script.pm
index faf209e4b..b13c3a0e8 100644
--- a/centreon/plugins/script.pm
+++ b/centreon/plugins/script.pm
@@ -256,7 +256,7 @@ __END__
 
 =head1 NAME
 
-centreon_plugins.pl - main program to call Merethis plugins.
+centreon_plugins.pl - main program to call Centreon plugins.
 
 =head1 SYNOPSIS