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path: root/nixpkgs/pkgs/development/libraries/libressl/default.nix
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{ stdenv
, fetchurl
, lib
, cmake
, cacert
, fetchpatch
, buildShared ? !stdenv.hostPlatform.isStatic
}:

let
  ldLibPathEnvName = if stdenv.isDarwin
    then "DYLD_LIBRARY_PATH"
    else "LD_LIBRARY_PATH";

  generic =
    { version
    , hash
    , patches ? []
    , knownVulnerabilities ? []
    }: stdenv.mkDerivation rec
  {
    pname = "libressl";
    inherit version;

    src = fetchurl {
      url = "mirror://openbsd/LibreSSL/${pname}-${version}.tar.gz";
      inherit hash;
    };

    nativeBuildInputs = [ cmake ];

    cmakeFlags = [
      "-DENABLE_NC=ON"
      # Ensure that the output libraries do not require an executable stack.
      # Without this define, assembly files in libcrypto do not include a
      # .note.GNU-stack section, and if that section is missing from any object,
      # the linker will make the stack executable.
      "-DCMAKE_C_FLAGS=-DHAVE_GNU_STACK"
      # libressl will append this to the regular prefix for libdir
      "-DCMAKE_INSTALL_LIBDIR=lib"
    ] ++ lib.optional buildShared "-DBUILD_SHARED_LIBS=ON";

    # The autoconf build is broken as of 2.9.1, resulting in the following error:
    # libressl-2.9.1/tls/.libs/libtls.a', needed by 'handshake_table'.
    # Fortunately LibreSSL provides a CMake build as well, so opt for CMake by
    # removing ./configure pre-config.
    preConfigure = ''
      rm configure
      substituteInPlace CMakeLists.txt \
        --replace 'exec_prefix \''${prefix}' "exec_prefix ${placeholder "bin"}" \
        --replace 'libdir      \''${exec_prefix}' 'libdir \''${prefix}'
    '';

    inherit patches;

    # Since 2.9.x the default location can't be configured from the build using
    # DEFAULT_CA_FILE anymore, instead we have to patch the default value.
    postPatch = ''
      patchShebangs tests/
      ${lib.optionalString (lib.versionAtLeast version "2.9.2") ''
        substituteInPlace ./tls/tls_config.c --replace '"/etc/ssl/cert.pem"' '"${cacert}/etc/ssl/certs/ca-bundle.crt"'
      ''}
    '';

    doCheck = !stdenv.hostPlatform.isPower64;
    preCheck = ''
      export PREVIOUS_${ldLibPathEnvName}=$${ldLibPathEnvName}
      export ${ldLibPathEnvName}="$${ldLibPathEnvName}:$(realpath tls/):$(realpath ssl/):$(realpath crypto/)"
    '';
    postCheck = ''
      export ${ldLibPathEnvName}=$PREVIOUS_${ldLibPathEnvName}
    '';

    outputs = [ "bin" "dev" "out" "man" "nc" ];

    postFixup = ''
      moveToOutput "bin/nc" "$nc"
      moveToOutput "bin/openssl" "$bin"
      moveToOutput "bin/ocspcheck" "$bin"
      moveToOutput "share/man/man1/nc.1.gz" "$nc"
    '';

    meta = with lib; {
      description = "Free TLS/SSL implementation";
      homepage    = "https://www.libressl.org";
      license = with licenses; [ publicDomain bsdOriginal bsd0 bsd3 gpl3 isc openssl ];
      platforms   = platforms.all;
      maintainers = with maintainers; [ thoughtpolice fpletz ];
      inherit knownVulnerabilities;
    };
  };

in {
  libressl_3_4 = generic {
    version = "3.4.3";
    hash = "sha256-/4i//jVIGLPM9UXjyv5FTFAxx6dyFwdPUzJx1jw38I0=";
    knownVulnerabilities = [ "Support ended 2022-10-14." ];
    patches = [
      (fetchpatch {
        # https://marc.info/?l=libressl&m=167582148932407&w=2
        name = "backport-type-confusion-fix.patch";
        url = "https://raw.githubusercontent.com/libressl/portable/30dc760ed1d7c70766b135500950d8ca9d17b13a/patches/x509_genn.c.diff";
        sha256 = "sha256-N9jsOueqposDWZwaR+n/v/cHgNiZbZ644d8/wKjN2/M=";
        stripLen = 2;
        extraPrefix = "crypto/";
      })
    ];
  };

  libressl_3_6 = generic {
    version = "3.6.2";
    hash = "sha256-S+gP/wc3Rs9QtKjlur4nlayumMaxMqngJRm0Rd+/0DM=";
  };

  libressl_3_7 = generic {
    version = "3.7.2";
    hash = "sha256-sGqlOP78nGszxNtJMaCaX1LZ0jVyGa/L/32T/hLr9vc=";
  };
}