Added os_bin() method to CiscoStats. Determines ROM version on several

Cisco switches and routers by scanning for version string in rom_id().

Info/CiscoStats.pm

@@ -76,6 +76,7 @@ $VERSION = '2.01';
 
     # OLD-CISCO-SYSTEM-MIB
     'write_mem' => 'writeMem',
+    'rom_id'    => 'romId',
 );
 
 %FUNCS = (
@@ -205,6 +206,15 @@ sub os_ver {
     return;
 }
 
+sub os_bin {
+    my $self   = shift;
+    my $rom_id = $self->rom_id();
+    if ($rom_id =~ m/Version ([^,]+),/)  {
+        return $1;
+    }
+    return;
+}
+
 sub cpu {
     my $self    = shift;
     my $ios_cpu = $self->ios_cpu();
@@ -427,6 +437,10 @@ Cisco Content Switch Secure Content Acceleration
 
 Tries to parse device operating system version from description()
 
+=item $ciscostats->os_bin()
+
+Tries to parse ROMMON version from rom_id() string
+
 =item $ciscostats->ios_cpu()
 
 Current CPU usage in percent.