From b2030266ac1cc4fe866889e6bd3f3f4547fd7851 Mon Sep 17 00:00:00 2001
From: Audrey Dutcher <audrey@rhelmot.io>
Date: Sat, 21 Dec 2024 14:46:41 -0800
Subject: [PATCH] patch stand to support 3x longer config lines

---
 .../bsd/openbsd/pkgs/cmd-buff-size.patch        | 17 +++++++++++++++++
 .../bsd/openbsd/pkgs/stand/package.nix          |  5 ++++-
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/os-specific/bsd/openbsd/pkgs/cmd-buff-size.patch

diff --git a/pkgs/os-specific/bsd/openbsd/pkgs/cmd-buff-size.patch b/pkgs/os-specific/bsd/openbsd/pkgs/cmd-buff-size.patch
new file mode 100644
index 000000000000..f4f7dab95f70
--- /dev/null
+++ b/pkgs/os-specific/bsd/openbsd/pkgs/cmd-buff-size.patch
@@ -0,0 +1,17 @@
+OpenBSD's bootloader supports input configuration lines from both the console
+and configuration files of only up to 133 characters. This is easy to break
+with nix store paths. Triple it to 399.
+
+diff --git a/sys/stand/boot/cmd.h b/sys/stand/boot/cmd.h
+index 5045f052b8b..9fc5ce9e50a 100644
+--- a/sys/stand/boot/cmd.h
++++ b/sys/stand/boot/cmd.h
+@@ -27,7 +27,7 @@
+  *
+  */
+ 
+-#define CMD_BUFF_SIZE		133
++#define CMD_BUFF_SIZE		399
+ #define BOOTDEVLEN		1024
+ 
+ struct cmd_table {
diff --git a/pkgs/os-specific/bsd/openbsd/pkgs/stand/package.nix b/pkgs/os-specific/bsd/openbsd/pkgs/stand/package.nix
index 0aa3e0efec65..981539be2d04 100644
--- a/pkgs/os-specific/bsd/openbsd/pkgs/stand/package.nix
+++ b/pkgs/os-specific/bsd/openbsd/pkgs/stand/package.nix
@@ -8,7 +8,10 @@ mkDerivation {
   path = "sys/arch/amd64/stand";
   extraPaths = [ "sys" ];
 
-  patches = [ ../sys/initpath.patch ];
+  patches = [
+    ../sys/initpath.patch
+    ./cmd-buff-size.patch
+  ];
 
   # gcc compat
   postPatch = ''