Get MAC Address

Garry K

I'm back at this MAC address - specifically for first Ethernet device.

This code seems to work fine for Windows 7 - but will it work for OSX ??

Has anyone tried this in a French computer or some other language?

` def get_mac_address()
return @mac_address if defined?( @mac_address )

@win = ( RUBY_PLATFORM =~ /darwin/i ) == nil

tmp = ""
str = ""
first = true

if ( @win )
# for windows put results in array - splitting on newline
ipa = %x[ipconfig /all].split("\n")

# check begining of string for 'Ethernet' and set flag once found
# then check for 'Physical Address' and look at everything after the ':'
# set mac_address and return
ipa.each {|line|
  tmp = line.strip
  str = tmp[0..7]

  if ( first )
    first = false if ( "Ethernet" == str )
  elsif ( "Physical" == str )
    pos = tmp.rindex( ":" )
    @mac_address = tmp[pos+2, tmp.length ]
    return @mac_address
  end
}

else
tmp = %x[ifconfig eth0].strip
pos = tmp.rindex( " " )
@mac_address = tmp[pos+1, tmp.length ]
return @mac_address
end

return ""
end`

pgarmyn

@Garry
As i said before, this only works for US or EN OS.
The output of ipconfig depends on the OS language.
In French you will have to scan for "adresse physique" and for the other languages....

Garry K

This works in Windows 7

def get_mac_address()
	return @@mac_address if defined?( @@mac_address )

	if ( ( RUBY_PLATFORM =~ /darwin/i ) == nil )
		cmd = 'ipconfig /all'
	else
		cmd = 'ifconfig'
	end

	macs = []
	lines = %x[#{cmd}].split("\n").grep( /^.*\s([0-9a-f|A-F]{2}[:-]){5}([0-9a-f|A-F]{2})$/ )
	lines.each{|line| macs << line.strip[-17,17] }

	@@mac_address = macs.first.gsub( '-', ':' )
	return @@mac_address
end

Garry K

Thanks pgarmyn - I was just confirming the language thing
I did try running the code that you posted earlier - but it gave me an error so I decided this was a good opportunity to learn more.

I have cleaned this up so if it is benefit to others

` def get_mac_address()
return @@mac_address if defined?( @@mac_address )

mac_addr = []
cmd = @@windows ? 'ipconfig /all' : 'ifconfig'

# choose lines that have only six pairs of 2 char hex values separated by either a : or -
# pattern must start with a space and be at the end of the line
# there can be white space at the end of the line
lines = %x[#{cmd}].split("\n").grep( /\s([0-9A-F]{2}[-:]){5}([0-9A-F]{2})\s*$/ )
lines.each{|line| mac_addr << (line.strip[-17,17]).gsub( /-/, ':' ) }

# if windows and we have more than 1 mac address use the second one otherwise use the first
# if not windows then use the first address
index = @@windows && mac_addr.length > 1 ? 1 : 0
@@mac_address = mac_addr[index]

return @@mac_address

end`

driven

@gary
couple of changes needed to run on my mac,
got rid of class variables
added windows =
added simplified regex = with .. for grep

def get_mac_address()
windows  = ( ( RUBY_PLATFORM =~ /darwin/i ) == nil )
return mac_address if defined?( mac_address )

mac_addr = []
cmd = windows ? 'ipconfig /all' ; 'ifconfig'

# choose lines that have only six pairs of 2 char hex values separated by either a ; or -
# pattern must start with a space and be at the end of the line
# there can be white space at the end of the line
regex = Regexp.compile("(..[;-]){5}..")
lines = %x[#{cmd}].split("\n").grep( regex )
lines.each{|line| mac_addr << (line.strip[-17,17]).gsub( /-/, ';' ) }

# if windows and we have more than 1 mac address use the second one otherwise use the first
# if not windows then use the first address
index = windows && mac_addr.length > 1 ? 1 ; 0
mac_address = mac_addr[index]

return mac_address
end

> get_mac_address 00:1e:c4:16:08:46

Garry K

Thank-you very much, I appreciate this, since I don't have access to a mac.
I will test on Windows with your simplified regex.

You show the mac_address as lower case - can you confirm that is indeed the output.
Also - off topic - but how do you get the source code to go into the embedded window?

driven

@garry k said:

You show the mac_address as lower case - can you confirm that is indeed the output.

yes it's lower-case, I realised that obscuring it in my other posts was counter productive, so I just adjusted only the number values to show the return this time...
@unknownuser said:

Also - off topic - but how do you get the source code to go into the embedded window?

Garry K

Thanks again. I checked the code for windows and it works fine.
I've added an upcase on the following line

lines.each{|line| mac_addr << (line.strip[-17,17]).upcase().gsub( /-/, ':' ) }

jaimeda

Hello

This works fine in Sketchup 2013 but not in 2014.

Any tips?

tt_su

@jaimeda said:

This works fine in Sketchup 2013 but not in 2014.

Due to the upgrade of the Ruby core this broke. We haven't been able to figure out why. But the workaround is to pipe the result from the command to a temporary file and read it after executing the command.

<span class="syntaxdefault"><br />tempfile&nbsp;</span><span class="syntaxkeyword">=&nbsp;</span><span class="syntaxstring">"C;/Users/Thomas/Desktop/temp.txt"<br /></span><span class="syntaxkeyword">`</span><span class="syntaxstring">ipconfig&nbsp;/all&nbsp;>&nbsp;#{tempfile}</span><span class="syntaxkeyword">`<br /></span><span class="syntaxdefault">puts&nbsp;File</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">read</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">tempfile</span><span class="syntaxkeyword">)<br />&nbsp;</span><span class="syntaxdefault"></span>

jaimeda

Thanks Thomas.

It works perfectly.

Garry K

@tt_su said:

@jaimeda said:

This works fine in Sketchup 2013 but not in 2014.

Due to the upgrade of the Ruby core this broke. We haven't been able to figure out why. But the workaround is to pipe the result from the command to a temporary file and read it after executing the command.

<span class="syntaxdefault"><br />tempfile </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> </span><span class="syntaxstring">"C;/Users/Thomas/Desktop/temp.txt"<br /></span><span class="syntaxkeyword">`</span><span class="syntaxstring">ipconfig /all > #{tempfile}</span><span class="syntaxkeyword">`<br /></span><span class="syntaxdefault">puts File</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">read</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">tempfile</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault"> </span>

In my C++ programming for windows I would create a temp file this way

tempfp = tmpfile();

Is there anything in Sketchup that would do the same for both Windows and Mac?

tt_su

Well,... since we now have the Ruby Standard Library available: http://ruby-doc.org/stdlib-2.0.0/libdoc/tempfile/rdoc/Tempfile.html

So an updated example would be:

<span class="syntaxdefault"><br /></span><span class="syntaxkeyword">require&nbsp;</span><span class="syntaxstring">'tempfile'<br /></span><span class="syntaxdefault">file&nbsp;</span><span class="syntaxkeyword">=&nbsp;</span><span class="syntaxdefault">Tempfile</span><span class="syntaxkeyword">.new(</span><span class="syntaxstring">'my_prefix'</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault">file</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">close<br /></span><span class="syntaxkeyword">`</span><span class="syntaxstring">ipconfig&nbsp;/all&nbsp;>&nbsp;#{file.path}</span><span class="syntaxkeyword">`<br /></span><span class="syntaxdefault">puts&nbsp;File</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">read</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">file</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">path</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault">file</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">unlink<br /></span>

Dan Rathbun

Weirdly the backquotes, & %x strings which use the ()` method, work on my machine.

And I verified that I do not have the backquote_patch.rb (that I proposed,) loaded.

Chris Fullmer

We have seen that if a user drags a skp model onto their SU icon, then they work. but if they double click on a skp model file, or double click on the SU icon, then it does not work. Are you seeing it work in both scenarios?

Garry K

@tt_su said:

Well,... since we now have the Ruby Standard Library available: http://ruby-doc.org/stdlib-2.0.0/libdoc/tempfile/rdoc/Tempfile.html

So an updated example would be:

<span class="syntaxdefault"><br />require </span><span class="syntaxstring">'tempfile'<br /></span><span class="syntaxdefault">file </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Tempfile</span><span class="syntaxkeyword">.new(</span><span class="syntaxstring">'my_prefix'</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault">file</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">close<br /></span><span class="syntaxkeyword">`</span><span class="syntaxstring">ipconfig /all > #{file.path}</span><span class="syntaxkeyword">`<br /></span><span class="syntaxdefault">puts File</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">read</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">file</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">path</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault">file</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">unlink<br /></span>

This is great for 2014 and forward - but what if you want to support earlier versions.

I guess we have to either use a one size fits all strategy or check the version an branch appropriately.

Dan Rathbun

There are whole topic threads on using the TEMP directory.

No problem on Mac OSX...

The issue on PC is unicode characters in usernames, which cause Ruby 1.8.x to choke.

So some coders create a TEMP subdir of THEIR specific plugin's folder.
(I think this is better than creating any temp folders in the root dir of the system drive.)

Dan Rathbun

@chris fullmer said:

... but if they double click on a skp model file, or double click on the SU icon, then it does not work. Are you seeing it work in both scenarios?

NO neither.

I see now, I either have used a pinned shortcut copy (of the desktop icon,) on the taskbar, or a copy on the StartMenu, or from a popup menu of the Desktop taskbar.
These are all single-click ways of launching SketchUp. I usually start SU this way because the Desktop is covered up.

jaimeda

I think this works in 2014 and earlier

<span class="syntaxdefault">IO</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">popen</span><span class="syntaxkeyword">(</span><span class="syntaxstring">"ipconfig/all >temp.txt"</span><span class="syntaxkeyword">)</span><span class="syntaxdefault"> </span><span class="syntaxkeyword">{|</span><span class="syntaxdefault">fd</span><span class="syntaxkeyword">|</span><span class="syntaxdefault"> fd</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">readlines</span><span class="syntaxkeyword">}<br /></span><span class="syntaxdefault">lines </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> open</span><span class="syntaxkeyword">(</span><span class="syntaxstring">"temp.txt"</span><span class="syntaxkeyword">).</span><span class="syntaxdefault">readlines<br />puts</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">lines</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault"> </span>

Garry K

Does this code work with Mac OS.
With windows the tempfile goes to desktop and gets discarded when finished.
Where does the file go for Mac OS and do we have rights?


      # do this for testing on a mac
      @@windows = false 

      # do this for testing on windows
      # @@windows = false 

      mac_addr = []
      cmd = @@windows ? 'ipconfig /all' ; 'ifconfig'

      # choose lines that have only six pairs of 2 char hex values 
      # separated by either a ; or -
      regex = Regexp.compile('(..[;-]){5}..')

      tempfile = "temp.txt"
      `#{cmd} > #{tempfile}`
      File.open(tempfile, 'r') do |file|
        lines = file.grep(regex)
        lines.each { |line| mac_addr << (line.strip[-17, 17]).upcase().gsub(/-/, ';') }
      end
      File.unlink(tempfile)

      # if windows and we have more than 1 mac address 
      # then use the second one otherwise use the first
      # if not windows then use the first address
      index = @@windows && mac_addr.length > 1 ? 1 ; 0
      @@mac_address = mac_addr[index]