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path: root/pkgs/os-specific/linux/pam_usb/default.nix
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{stdenv, fetchurl, makeWrapper, useSetUID, dbus, libxml2, pam, pkgconfig, pmount, python, pythonDBus}:

let
  pmountBin = useSetUID pmount "/bin/pmount";
  pumountBin = useSetUID pmount "/bin/pumount";
in

stdenv.mkDerivation rec {
  name = "pam_usb-0.5.0";

  src = fetchurl {
    url = "mirror://sourceforge/pamusb/${name}.tar.gz";
    sha256 = "1g1w0s9d8mfld8abrn405ll5grv3xgs0b0hsganrz6qafdq9j7q1";
  };

  buildInputs = [
    makeWrapper
    # pam_usb dependencies
    dbus libxml2 pam pmount pkgconfig
    # pam_usb's tools dependencies
    python
    # cElementTree is included with python 2.5 and later.
  ];

  preBuild = ''
    makeFlagsArray=(DESTDIR=$out)
    substituteInPlace ./src/volume.c \
      --replace 'pmount' '${pmountBin}' \
      --replace 'pumount' '${pumountBin}'
  '';

  # pmount is append to the PATH because pmounts binaries should have a set uid bit.
  postInstall = ''
    mv $out/usr/* $out/. # fix color */
    rm -rf $out/usr
    for prog in $out/bin/pamusb-conf $out/bin/pamusb-agent; do
      substituteInPlace $prog --replace '/usr/bin/env python' '/bin/python'
      wrapProgram $prog \
        --prefix PYTHONPATH : "$(toPythonPath ${pythonDBus})"
    done
  '';

  meta = {
    homepage = http://pamusb.org/;
    description = "Authentication using USB Flash Drives";
    license = stdenv.lib.licenses.gpl2;
    platforms = stdenv.lib.platforms.linux;
  };
}