From 165d8e6db51dc8b5699f5d43263e174af876d930 Mon Sep 17 00:00:00 2001
From: Artturin <Artturin@artturin.com>
Date: Sat, 7 May 2022 16:45:41 +0300
Subject: [PATCH 1/2] netcat-openbsd: init at 1.218-5

---
 .../networking/netcat-openbsd/default.nix     | 54 +++++++++++++++++++
 pkgs/top-level/aliases.nix                    |  1 -
 pkgs/top-level/all-packages.nix               |  2 +
 3 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/tools/networking/netcat-openbsd/default.nix

diff --git a/pkgs/tools/networking/netcat-openbsd/default.nix b/pkgs/tools/networking/netcat-openbsd/default.nix
new file mode 100644
index 000000000000..67d458dad1bd
--- /dev/null
+++ b/pkgs/tools/networking/netcat-openbsd/default.nix
@@ -0,0 +1,54 @@
+{ lib, stdenv, fetchFromGitLab, pkg-config, libbsd, installShellFiles }:
+
+stdenv.mkDerivation rec {
+  pname = "netcat-openbsd";
+  version = "1.218-5";
+
+  src = fetchFromGitLab {
+    domain = "salsa.debian.org";
+    owner = "debian";
+    repo = "netcat-openbsd";
+    rev = "refs/tags/debian/${version}";
+    sha256 = "sha256-jEJ8x49Z1UN2qOChGp173aQuPkgl2fWwUUJgUdOv60I=";
+  };
+
+  strictDeps = true;
+  nativeBuildInputs = [ pkg-config installShellFiles ];
+  buildInputs = [ libbsd ];
+
+  NIX_CFLAGS_COMPILE = [
+    "-I${lib.getDev libbsd}/include/libbsd"
+  ];
+
+  NIX_LDFLAGS = [ "-lbsd" ];
+
+  postPatch = ''
+    for file in $(cat debian/patches/series); do
+      patch -p1 < debian/patches/$file
+    done
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin
+    mv nc $out/bin/nc
+    installManPage nc.1
+
+    runHook postInstall
+  '';
+
+  doInstallCheck = true;
+  installCheckPhase = ''
+    $out/bin/nc -h 2> /dev/null
+  '';
+
+  meta = with lib; {
+    description = "TCP/IP swiss army knife. OpenBSD variant";
+    homepage = "https://salsa.debian.org/debian/netcat-openbsd";
+    maintainers = with maintainers; [ artturin ];
+    license = licenses.bsd3;
+    platforms = platforms.unix;
+    mainProgram = "nc";
+  };
+}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index d0c8cee8e24a..8315b70dbfc6 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -850,7 +850,6 @@ mapAliases ({
   navit = throw "navit has been removed from nixpkgs, due to being unmaintained"; # Added 2021-06-07
   ncat = throw "'ncat' has been renamed to/replaced by 'nmap'"; # Converted to throw 2022-02-22
   neap = throw "neap was removed from nixpkgs, as it relies on python2"; # Added 2022-01-12
-  netcat-openbsd = throw "'netcat-openbsd' has been renamed to/replaced by 'libressl.nc'"; # Converted to throw 2022-02-22
   netease-cloud-music = throw "netease-cloud-music has been removed together with deepin"; # Added 2020-08-31
   networkmanager_fortisslvpn = throw "'networkmanager_fortisslvpn' has been renamed to/replaced by 'networkmanager-fortisslvpn'"; # Converted to throw 2022-02-22
   networkmanager_iodine = throw "'networkmanager_iodine' has been renamed to/replaced by 'networkmanager-iodine'"; # Converted to throw 2022-02-22
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 612f3dcd699f..44231edb22f2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8544,6 +8544,8 @@ with pkgs;
 
   netcat-gnu = callPackage ../tools/networking/netcat { };
 
+  netcat-openbsd = callPackage ../tools/networking/netcat-openbsd { };
+
   netdiscover = callPackage ../tools/networking/netdiscover { };
 
   nethogs = callPackage ../tools/networking/nethogs { };

From 51838e184e797af125183e62c17a81116bc37942 Mon Sep 17 00:00:00 2001
From: Artturin <Artturin@artturin.com>
Date: Sat, 7 May 2022 17:01:05 +0300
Subject: [PATCH 2/2] flashfocus: use make it possible to use nc_flash_window

it is faster than flash_window
it needs netcat-openbsd
---
 pkgs/misc/flashfocus/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/misc/flashfocus/default.nix b/pkgs/misc/flashfocus/default.nix
index fd93260a4bca..b74464de4f68 100644
--- a/pkgs/misc/flashfocus/default.nix
+++ b/pkgs/misc/flashfocus/default.nix
@@ -1,4 +1,4 @@
-{ lib, python3 }:
+{ lib, python3, netcat-openbsd }:
 
 python3.pkgs.buildPythonApplication rec {
   pname = "flashfocus";
@@ -12,6 +12,9 @@ python3.pkgs.buildPythonApplication rec {
   postPatch = ''
     substituteInPlace setup.py \
       --replace "pyyaml>=5.1,<6.0" "pyyaml>=5.1"
+
+    substituteInPlace bin/nc_flash_window \
+      --replace "nc" "${lib.getExe netcat-openbsd}"
   '';
 
   nativeBuildInputs = with python3.pkgs; [