From e08317b18d899402db370f6d8a7c16baf2f68be7 Mon Sep 17 00:00:00 2001
From: Artemis Tosini <me@artem.ist>
Date: Mon, 6 Jan 2025 00:14:39 +0000
Subject: [PATCH 1/3] openbsd.reboot: init

---
 pkgs/os-specific/bsd/openbsd/pkgs/reboot.nix | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 pkgs/os-specific/bsd/openbsd/pkgs/reboot.nix

diff --git a/pkgs/os-specific/bsd/openbsd/pkgs/reboot.nix b/pkgs/os-specific/bsd/openbsd/pkgs/reboot.nix
new file mode 100644
index 000000000000..946f8427b87a
--- /dev/null
+++ b/pkgs/os-specific/bsd/openbsd/pkgs/reboot.nix
@@ -0,0 +1,4 @@
+{ mkDerivation }:
+mkDerivation {
+  path = "sbin/reboot";
+}

From f3f5493bce5467e1c22b664d94ca38f85509b6cf Mon Sep 17 00:00:00 2001
From: Artemis Tosini <me@artem.ist>
Date: Mon, 6 Jan 2025 00:17:10 +0000
Subject: [PATCH 2/3] openbsd.wall: init

---
 pkgs/os-specific/bsd/openbsd/pkgs/wall.nix | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 pkgs/os-specific/bsd/openbsd/pkgs/wall.nix

diff --git a/pkgs/os-specific/bsd/openbsd/pkgs/wall.nix b/pkgs/os-specific/bsd/openbsd/pkgs/wall.nix
new file mode 100644
index 000000000000..a579efb9a8d5
--- /dev/null
+++ b/pkgs/os-specific/bsd/openbsd/pkgs/wall.nix
@@ -0,0 +1,9 @@
+{ mkDerivation }:
+mkDerivation {
+  path = "usr.bin/wall";
+
+  postPatch = ''
+    sed -i /BINMODE/d $BSDSRCDIR/usr.bin/wall/Makefile
+    sed -i /BINGRP/d $BSDSRCDIR/usr.bin/wall/Makefile
+  '';
+}

From cd0f0637025118e47c9b2db9eb6eb765c23a2372 Mon Sep 17 00:00:00 2001
From: Artemis Tosini <me@artem.ist>
Date: Mon, 6 Jan 2025 00:21:21 +0000
Subject: [PATCH 3/3] openbsd.shutdown: Set paths for halt, reboot, wall

---
 pkgs/os-specific/bsd/openbsd/pkgs/shutdown.nix | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/pkgs/os-specific/bsd/openbsd/pkgs/shutdown.nix b/pkgs/os-specific/bsd/openbsd/pkgs/shutdown.nix
index 15c602455866..7dd7125a8823 100644
--- a/pkgs/os-specific/bsd/openbsd/pkgs/shutdown.nix
+++ b/pkgs/os-specific/bsd/openbsd/pkgs/shutdown.nix
@@ -1,8 +1,17 @@
-{ mkDerivation }:
+{
+  mkDerivation,
+  reboot,
+  wall,
+}:
 mkDerivation {
   path = "sbin/shutdown";
 
-  preBuild = ''
-    sed -i 's/4550/0550/' Makefile
+  postPatch = ''
+    sed -i 's/4550/0550/' $BSDSRCDIR/sbin/shutdown/Makefile
+
+    substituteInPlace $BSDSRCDIR/sbin/shutdown/pathnames.h \
+      --replace-fail /sbin/halt ${reboot}/bin/halt \
+      --replace-fail /sbin/reboot ${reboot}/bin/reboot \
+      --replace-fail /usr/bin/wall ${wall}/bin/wall
   '';
 }