require 'formula'

class AircrackNg < Formula
  homepage 'http://aircrack-ng.org/'
  url 'http://download.aircrack-ng.org/aircrack-ng-1.1.tar.gz'
  sha1 '16eed1a8cf06eb8274ae382150b56589b23adf77'

  # Remove root requirement from OUI update script. See:
  # https://github.com/Homebrew/homebrew/pull/12755
  def patches
    DATA
  end

  def install
    # Force i386, otherwise you get errors:
    #  sha1-sse2.S:190:32-bit absolute addressing is not supported for x86-64
    #  sha1-sse2.S:190:cannot do signed 4 byte relocation
    %w{ CFLAGS CXXFLAGS LDFLAGS OBJCFLAGS OBJCXXFLAGS }.each do |compiler_flag|
      ENV.remove compiler_flag, "-arch #{Hardware::CPU.arch_64_bit}"
      ENV.append compiler_flag, "-arch #{Hardware::CPU.arch_32_bit}"
    end

    # Fix incorrect OUI url
    inreplace "scripts/airodump-ng-oui-update",
      "http://standards.ieee.org/regauth/oui/oui.txt",
      "http://standards.ieee.org/develop/regauth/oui/oui.txt"

    system "make", "CC=#{ENV.cc}"
    system "make", "prefix=#{prefix}", "mandir=#{man1}", "install"
  end

  def caveats;  <<-EOS.undent
    Run `airodump-ng-oui-update` install or update the Airodump-ng OUI file.
    EOS
  end
end

__END__
--- a/scripts/airodump-ng-oui-update
+++ b/scripts/airodump-ng-oui-update
@@ -7,25 +7,6 @@
 OUI_PATH="/usr/local/etc/aircrack-ng"
 AIRODUMP_NG_OUI="${OUI_PATH}/airodump-ng-oui.txt"
 OUI_IEEE="${OUI_PATH}/oui.txt"
-USERID=""
-
-
-# Make sure the user is root
-if [ x"`which id 2> /dev/null`" != "x" ]
-then
-	USERID="`id -u 2> /dev/null`"
-fi
-
-if [ x$USERID = "x" -a x$UID != "x" ]
-then
-	USERID=$UID
-fi
-
-if [ x$USERID != "x" -a x$USERID != "x0" ]
-then
-	echo Run it as root ; exit ;
-fi
-
 
 if [ ! -d "${OUI_PATH}" ]; then
 	mkdir -p ${OUI_PATH}