Ruby example of route cmd

bindings/ruby/examples/route.rb

@@ -0,0 +1,31 @@
+require 'rbsigar'
+
+def flags(flags)
+  f = ""
+  if (flags & Sigar::RTF_UP) != 0
+    f += "U"
+  end
+  if (flags & Sigar::RTF_GATEWAY) != 0
+    f += "G"
+  end
+  if (flags & Sigar::RTF_HOST) != 0
+    f += "H"
+  end
+  f
+end
+
+def gw(addr)
+  addr == "0.0.0.0" ? "*" : addr
+end
+def dest(addr)
+  addr == "0.0.0.0" ? "default" : addr
+end
+
+puts "Kernel IP routing table"
+fmt = "%-15s %-15s %-15s %-5s %-6s %-3s %-s\n"
+printf fmt, "Destination", "Gateway", "Genmask", "Flags", "Metric", "Ref", "Iface"
+
+Sigar.new.net_route_list.each do |route|
+  printf fmt, dest(route.destination), gw(route.gateway), route.mask,
+    flags(route.flags), route.metric.to_s, route.refcnt.to_s, route.ifname
+end