Merge pull request #279265 from 6543-forks/brother_mfcj880dw

      fingerprint = "D292 365E 3C46 A5AA 75EE  B30B 78DB 7EDE 3540 794B";

    }];

  };

  _6543 = {

    email = "6543@obermui.de";

    github = "6543";

    githubId = 24977596;

    name = "6543";

    keys = [{

      fingerprint = "8722 B61D 7234 1082 553B  201C B8BE 6D61 0E61 C862";

    }];

  };

  _6AA4FD = {

    email = "f6442954@gmail.com";

    github = "6AA4FD";

{ lib, stdenv, fetchurl, mfcj880dwlpr, makeWrapper, bash }:

stdenv.mkDerivation rec {

  pname = "mfcj880dw-cupswrapper";

  version = "1.0.0-0";

  src = fetchurl {

    url = "https://download.brother.com/welcome/dlf102044/mfcj880dw_cupswrapper_GPL_source_${version}.tar.gz";

    sha256 = "bf291fe31d64afeaefb5b0e606f4baf80c41d80009e34b32b77d56f759e9cf94";

  };

  nativeBuildInputs = [ makeWrapper ];

  buildInputs = [

    bash # shebang

  ];

  makeFlags = [ "-C" "brcupsconfig" "all" ];

  installPhase = ''

    runHook preInstall

    TARGETFOLDER=$out/opt/brother/Printers/mfcj880dw/cupswrapper

    mkdir -p $TARGETFOLDER

    cp PPD/brother_mfcj880dw_printer_en.ppd $TARGETFOLDER

    cp brcupsconfig/brcupsconfpt1 $TARGETFOLDER

    cp cupswrapper/cupswrappermfcj880dw $TARGETFOLDER

    sed -i -e '26,306d' $TARGETFOLDER/cupswrappermfcj880dw

    substituteInPlace $TARGETFOLDER/cupswrappermfcj880dw \

      --replace-fail "\$ppd_file_name" "$TARGETFOLDER/brother_mfcj880dw_printer_en.ppd"

    CPUSFILTERFOLDER=$out/lib/cups/filter

    mkdir -p $TARGETFOLDER $CPUSFILTERFOLDER

    ln -s ${mfcj880dwlpr}/lib/cups/filter/brother_lpdwrapper_mfcj880dw $out/lib/cups/filter/brother_lpdwrapper_mfcj880dw

    runHook postInstall

    '';

  meta = with lib; {

    homepage = "http://www.brother.com/";

    description = "Brother MFC-J880DW CUPS wrapper driver";

    license = with licenses; gpl2;

    platforms = with platforms; linux;

    downloadPage = "https://support.brother.com/g/b/downloadlist.aspx?c=us&lang=en&prod=mfcj880dw_us_eu_as&os=128";

    maintainers = with maintainers; [ _6543 ];

  };

}

{ lib, stdenv, fetchurl, pkgsi686Linux, dpkg, makeWrapper, coreutils, gnused, gawk, file, cups, util-linux, xxd, runtimeShell

, ghostscript, a2ps, bash }:

# Why:

# The executable "brprintconf_mfcj880dw" binary is looking for "/opt/brother/Printers/%s/inf/br%sfunc" and "/opt/brother/Printers/%s/inf/br%src".

# Whereby, %s is printf(3) string substitution for stdin's arg0 (the command's own filename) from the 10th char forwards, as a runtime dependency.

# e.g. Say the filename is "0123456789ABCDE", the runtime will be looking for /opt/brother/Printers/ABCDE/inf/brABCDEfunc.

# Presumably, the binary was designed to be deployed under the filename "printconf_mfcj880dw", whereby it will search for "/opt/brother/Printers/mfcj880dw/inf/brmfcj880dwfunc".

# For NixOS, we want to change the string to the store path of brmfcj880dwfunc and brmfcj880dwrc but we're faced with two complications:

# 1. Too little room to specify the nix store path. We can't even take advantage of %s by renaming the file to the store path hash since the variable is too short and can't contain the whole hash.

# 2. The binary needs the directory it's running from to be r/w.

# What:

# As such, we strip the path and substitution altogether, leaving only "brmfcj880dwfunc" and "brmfcj880dwrc", while filling the leftovers with nulls.

# Fully null terminating the cstrings is necessary to keep the array the same size and preventing overflows.

# We then use a shell script to link and execute the binary, func and rc files in a temporary directory.

# How:

# In the package, we dump the raw binary as a string of search-able hex values using hexdump. We execute the substitution with sed. We then convert the hex values back to binary form using xxd.

# We also write a shell script that invoked "mktemp -d" to produce a r/w temporary directory and link what we need in the temporary directory.

# Result:

# The user can run brprintconf_mfcj880dw in the shell.

stdenv.mkDerivation rec {

  pname = "mfcj880dwlpr";

  version = "1.0.0-0";

  src = fetchurl {

    url = "https://download.brother.com/welcome/dlf102038/mfcj880dwlpr-${version}.i386.deb";

    sha256 = "1680b301f660a407fe0b69f5de59c7473d2d66dc472a1589b0cd9f51736bfea7";

  };

  nativeBuildInputs = [ makeWrapper ];

  buildInputs = [ cups ghostscript dpkg a2ps ];

  dontUnpack = true;

  brprintconf_mfcj880dw_script = ''

    #!${runtimeShell}

    cd $(mktemp -d)

    ln -s @out@/usr/bin/brprintconf_mfcj880dw_patched brprintconf_mfcj880dw_patched

    ln -s @out@/opt/brother/Printers/mfcj880dw/inf/brmfcj880dwfunc brmfcj880dwfunc

    ln -s @out@/opt/brother/Printers/mfcj880dw/inf/brmfcj880dwrc brmfcj880dwrc

    ./brprintconf_mfcj880dw_patched "$@"

  '';

  installPhase = ''

    dpkg-deb -x $src $out

    substituteInPlace $out/opt/brother/Printers/mfcj880dw/lpd/filtermfcj880dw \

      --replace-fail /opt "$out/opt"

    substituteInPlace $out/opt/brother/Printers/mfcj880dw/lpd/psconvertij2 \

      --replace-fail "GHOST_SCRIPT=`which gs`" "GHOST_SCRIPT=${ghostscript}/bin/gs"

    substituteInPlace $out/opt/brother/Printers/mfcj880dw/inf/setupPrintcapij \

      --replace-fail "/opt/brother/Printers" "$out/opt/brother/Printers" \

      --replace-fail "printcap.local" "printcap"

    patchelf --set-interpreter ${pkgsi686Linux.stdenv.cc.libc.out}/lib/ld-linux.so.2 \

      --set-rpath $out/opt/brother/Printers/mfcj880dw/inf:$out/opt/brother/Printers/mfcj880dw/lpd \

      $out/opt/brother/Printers/mfcj880dw/lpd/brmfcj880dwfilter

    patchelf --set-interpreter ${pkgsi686Linux.stdenv.cc.libc.out}/lib/ld-linux.so.2 $out/usr/bin/brprintconf_mfcj880dw

    #stripping the hardcoded path.

    # /opt/brother/Printers/%s/inf/br%sfunc -> brmfcj880dwfunc

    # /opt/brother/Printers/%s/inf/br%src -> brmfcj880dwrc

    ${util-linux}/bin/hexdump -ve '1/1 "%.2X"' $out/usr/bin/brprintconf_mfcj880dw | \

    sed 's.2F6F70742F62726F746865722F5072696E746572732F25732F696E662F6272257366756E63.62726d66636a383830647766756e6300000000000000000000000000000000000000000000.' | \

    sed 's.2F6F70742F62726F746865722F5072696E746572732F25732F696E662F627225737263.62726d66636a3838306477726300000000000000000000000000000000000000000000.' | \

    ${xxd}/bin/xxd -r -p > $out/usr/bin/brprintconf_mfcj880dw_patched

    chmod +x $out/usr/bin/brprintconf_mfcj880dw_patched

    #executing from current dir. segfaults if it's not r\w.

    mkdir -p $out/bin

    echo -n "$brprintconf_mfcj880dw_script" > $out/bin/brprintconf_mfcj880dw

    chmod +x $out/bin/brprintconf_mfcj880dw

    substituteInPlace $out/bin/brprintconf_mfcj880dw --replace-fail @out@ $out

    # NOTE: opt/brother/Printers/mfcj880dw/lpd/brmfcj880dwfilter also has cardcoded paths, but we can not simply replace them

    mkdir -p $out/lib/cups/filter/

    ln -s $out/opt/brother/Printers/mfcj880dw/lpd/filtermfcj880dw $out/lib/cups/filter/brother_lpdwrapper_mfcj880dw

    wrapProgram $out/opt/brother/Printers/mfcj880dw/lpd/psconvertij2 \

      --prefix PATH ":" ${ lib.makeBinPath [ coreutils gnused gawk ] }

    wrapProgram $out/opt/brother/Printers/mfcj880dw/lpd/filtermfcj880dw \

      --prefix PATH ":" ${ lib.makeBinPath [ coreutils gnused file ghostscript a2ps ] }

    '';

  meta = with lib; {

    description  = "Brother MFC-J880DW LPR driver";

    downloadPage = "https://support.brother.com/g/b/downloadlist.aspx?c=us&lang=en&prod=mfcj880dw_us_eu_as&os=128";

    homepage     = "http://www.brother.com/";

    sourceProvenance = with sourceTypes; [ binaryNativeCode ];

    license      = with licenses; unfree;

    maintainers  = with maintainers; [ _6543 ];

    platforms    = with platforms; linux;

  };

}