72 lines
1.8 KiB
Ruby
72 lines
1.8 KiB
Ruby
# http://codeforpeople.com/lib/ruby/macaddr/macaddr-1.0.0/lib/macaddr.rb
|
|
#
|
|
##
|
|
# Cross platform MAC address determination. Works for:
|
|
# * /sbin/ifconfig
|
|
# * /bin/ifconfig
|
|
# * ifconfig
|
|
# * ipconfig /all
|
|
#
|
|
# To return the first MAC address on the system:
|
|
#
|
|
# Mac.address
|
|
#
|
|
# To return an array of all MAC addresses:
|
|
#
|
|
# Mac.address.list
|
|
|
|
module Mac
|
|
VERSION = '1.0.0'
|
|
|
|
def Mac.version() ::Mac::VERSION end
|
|
|
|
class << self
|
|
|
|
##
|
|
# Accessor for the system's first MAC address, requires a call to #address
|
|
# first
|
|
|
|
attr_accessor "mac_address"
|
|
|
|
##
|
|
# 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
|
|
|
|
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'
|
|
|
|
null = test(?e, '/dev/null') ? '/dev/null' : 'NUL'
|
|
|
|
lines = nil
|
|
cmds.each do |cmd|
|
|
stdout = IO.popen("#{ cmd } 2> #{ null }"){|fd| fd.readlines} rescue next
|
|
next unless stdout and stdout.size > 0
|
|
lines = stdout and break
|
|
end
|
|
raise "all of #{ cmds.join ' ' } failed" unless lines
|
|
|
|
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 }
|
|
|
|
@mac_address = maddr
|
|
end
|
|
|
|
##
|
|
# Shorter alias for #address
|
|
|
|
alias_method "addr", "address"
|
|
end
|
|
end
|