ifstat, with patch to run on 64bit as well

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/ifstat.rb

@@ -0,0 +1,44 @@
+require 'formula'
+
+class Ifstat <Formula
+  url 'http://gael.roualland.free.fr/ifstat/ifstat-1.1.tar.gz'
+  homepage 'http://gael.roualland.free.fr/ifstat/'
+  md5 'b655642c33a626cfe976792fbcd9b6e1'
+
+  def patches
+    #Fixes 32/64 bit incompatibility for snow leopard
+    DATA
+  end
+
+  def install
+    system "./configure", "--disable-debug", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}", "--mandir=#{man}"
+    system "make install"
+  end
+end
+
+__END__
+diff --git a/drivers.c b/drivers.c
+index d5ac501..47fb320 100644
+--- a/drivers.c
++++ b/drivers.c
+@@ -593,7 +593,8 @@ static int get_ifcount() {
+   int ifcount[] = {
+     CTL_NET, PF_LINK, NETLINK_GENERIC, IFMIB_SYSTEM, IFMIB_IFCOUNT
+   };
+-  int count, size;
++  int count;
++  size_t size;
+   
+   size = sizeof(count);
+   if (sysctl(ifcount, sizeof(ifcount) / sizeof(int), &count, &size, NULL, 0) < 0) {
+@@ -607,7 +608,7 @@ static int get_ifdata(int index, struct ifmibdata * ifmd) {
+   int ifinfo[] = {
+     CTL_NET, PF_LINK, NETLINK_GENERIC, IFMIB_IFDATA, index, IFDATA_GENERAL
+   };
+-  int size = sizeof(*ifmd);
++  size_t size = sizeof(*ifmd);
+ 
+   if (sysctl(ifinfo, sizeof(ifinfo) / sizeof(int), ifmd, &size, NULL, 0) < 0)
+     return 0;
+