networking: Add bwm-ng expression.

pkgs/tools/networking/bwm-ng/default.nix

@@ -0,0 +1,46 @@
+{ stdenv, fetchurl, ncurses }:
+
+stdenv.mkDerivation rec {
+  name = "bwm-ng-0.6";
+  
+  src = fetchurl {
+    url = "http://www.gropp.org/bwm-ng/${name}.tar.gz";
+    sha256 = "1pgzc8y2y73n72qvbd2g0dkbkw5h0f83k5h9id1rsck8w9c464y1";
+  };
+  
+  buildInputs = [ ncurses ];
+
+  meta = with stdenv.lib; {
+    description = "Bandwidth Monitor NG is a small and simple console-based live network and disk io bandwidth monitor.";
+    homepage = "http://www.gropp.org/?id=projects&sub=bwm-ng";
+    license = licenses.gpl2;
+    platforms = platforms.unix;
+
+    longDescription = ''
+        Features
+
+            supports /proc/net/dev, netstat, getifaddr, sysctl, kstat, /proc/diskstats /proc/partitions, IOKit, devstat and libstatgrab
+            unlimited number of interfaces/devices supported
+            interfaces/devices are added or removed dynamically from list
+            white-/blacklist of interfaces/devices
+            output of KB/s, Kb/s, packets, errors, average, max and total sum
+            output in curses, plain console, CSV or HTML
+            configfile
+
+        Short list of changes since 0.5 (for full list read changelog):
+
+            curses2 output, a nice bar chart
+            disk input for bsd/macosx/linux/solaris
+            win32 network bandwidth support
+            moved to autotools
+            alot fixes
+
+        Info
+        This was influenced by the old bwm util written by Barney (barney@freewill.tzo.com) which had some issues with faster interfaces and was very simple. Since i had almost all code done anyway for other projects, i decided to create my own version.
+
+        I actually dont know if netstat input is usefull at all. I saw this elsewhere, so i added it. Its target is "netstat 1.42 (2001-04-15)" linux or Free/Open/netBSD. If there are other formats i would be happy to add them.
+        
+        (from homepage)
+    '';
+  };
+}

pkgs/top-level/all-packages.nix

@@ -525,6 +525,8 @@ let
 
   btrfsProgs = callPackage ../tools/filesystems/btrfsprogs { };
 
+  bwm_ng = callPackage ../tools/networking/bwm-ng { };
+
   byobu = callPackage ../tools/misc/byobu { };
 
   catdoc = callPackage ../tools/text/catdoc { };