From 0bf7328e043f0e1da72537497b53815a07f1399e Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Sat, 9 May 2026 21:35:51 +0300
Subject: [PATCH] Kernel: Handle TIOC{G,S}WINSZ on pipes

GCC likes to do this a lot and debug logging is excessive
---
 kernel/include/kernel/FS/Pipe.h |  2 ++
 kernel/kernel/FS/Pipe.cpp       | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/kernel/include/kernel/FS/Pipe.h b/kernel/include/kernel/FS/Pipe.h
index 10c441ba..86af31d0 100644
--- a/kernel/include/kernel/FS/Pipe.h
+++ b/kernel/include/kernel/FS/Pipe.h
@@ -44,6 +44,8 @@ namespace Kernel
 		virtual bool has_error_impl() const override { return m_reading_count == 0; }
 		virtual bool has_hungup_impl() const override { return m_writing_count == 0; }
 
+		virtual BAN::ErrorOr<long> ioctl_impl(int, void*) override;
+
 	private:
 		Pipe(const Credentials&);
 
diff --git a/kernel/kernel/FS/Pipe.cpp b/kernel/kernel/FS/Pipe.cpp
index f7ce65f3..3d96c845 100644
--- a/kernel/kernel/FS/Pipe.cpp
+++ b/kernel/kernel/FS/Pipe.cpp
@@ -5,6 +5,7 @@
 
 #include <fcntl.h>
 #include <sys/epoll.h>
+#include <sys/ioctl.h>
 
 namespace Kernel
 {
@@ -123,4 +124,16 @@ namespace Kernel
 		return to_copy;
 	}
 
+
+	BAN::ErrorOr<long> Pipe::ioctl_impl(int cmd, void* arg)
+	{
+		switch (cmd)
+		{
+			case TIOCGWINSZ:
+			case TIOCSWINSZ:
+				return BAN::Error::from_errno(EINVAL);
+		}
+		return Inode::ioctl_impl(cmd, arg);
+	}
+
 }