Sha256: 59282d113f9511dc866844651ddd31d7de3d094744b70ebb028e11aa461497bc
Contents?: true
Size: 1.71 KB
Versions: 9
Compression:
Stored size: 1.71 KB
Contents
##
# 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
Version data entries
9 entries across 9 versions & 2 rubygems