Module: MacAddress
- Defined in:
- lib/mac-address.rb,
lib/mac-address/version.rb
Overview
Constant Summary collapse
- RE =
%r/(?:[^:\-]|\A)(?:[0-9A-F][0-9A-F][:\-]){5}[0-9A-F][0-9A-F](?:[^:\-]|\Z)/io
- VERSION =
'1.6.3'
Class Attribute Summary collapse
-
.mac_address ⇒ Object
Accessor for the system’s first MAC address, requires a call to #address first.
Class Method Summary collapse
-
.address ⇒ Object
(also: addr)
Discovers and returns the system’s MAC addresses.
- .parse(output) ⇒ Object
- .version ⇒ Object
Class Attribute Details
.mac_address ⇒ Object
Accessor for the system’s first MAC address, requires a call to #address first
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# File 'lib/mac-address.rb', line 33 def mac_address @mac_address end |
Class Method Details
.address ⇒ Object Also known as: addr
Discovers and returns the system’s MAC addresses. Returns the first MAC address, and includes an accessor #list for the remaining addresses:
Mac.addr # => first address
Mac.addr.list # => all addresses
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# File 'lib/mac-address.rb', line 41 def address return @mac_address if defined? @mac_address and @mac_address re = %r/[^:\-](?:[0-9A-F][0-9A-F][:\-]){5}[0-9A-F][0-9A-F][^:\-]/io cmds = '/sbin/ifconfig', '/bin/ifconfig', 'ifconfig', 'ipconfig /all', 'cat /sys/class/net/*/address' null = test(?e, '/dev/null') ? '/dev/null' : 'NUL' output = nil cmds.each do |cmd| status, stdout, stderr = systemu(cmd) rescue next next unless stdout and stdout.size > 0 output = stdout and break end raise "all of #{ cmds.join ' ' } failed" unless output @mac_address = parse(output) end |
.parse(output) ⇒ Object
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# File 'lib/mac-address.rb', line 59 def parse(output) lines = output.split(/\n/) candidates = lines.select{|line| line =~ RE} raise 'no mac address candidates' unless candidates.first candidates.map!{|c| c[RE].strip} maddr = candidates.first raise 'no mac address found' unless maddr maddr.strip! maddr.instance_eval{ @list = candidates; def list() @list end } maddr end |
.version ⇒ Object
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# File 'lib/mac-address.rb', line 26 def version VERSION end |