From a74422281fde568de86bb83e40dc96659552608b Mon Sep 17 00:00:00 2001
From: Bananymous <bananymousosq@gmail.com>
Date: Thu, 6 Jul 2023 20:00:33 +0300
Subject: [PATCH] Kernel: Add O_CLOEXEC

---
 kernel/kernel/Process.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/kernel/kernel/Process.cpp b/kernel/kernel/Process.cpp
index 06413d86..e3b4064e 100644
--- a/kernel/kernel/Process.cpp
+++ b/kernel/kernel/Process.cpp
@@ -325,6 +325,15 @@ namespace Kernel
 
 		LockGuard lock_guard(m_lock);
 
+		for (int fd = 0; fd < m_open_files.size(); fd++)
+		{
+			if (validate_fd(fd).is_error())
+				continue;
+			auto& file = open_file_description(fd);
+			if (file.flags & O_CLOEXEC)
+				MUST(sys_close(fd));
+		}
+
 		m_fixed_width_allocators.clear();
 		m_general_allocator.clear();
 
@@ -490,7 +499,7 @@ namespace Kernel
 
 	BAN::ErrorOr<long> Process::sys_open(BAN::StringView path, int flags)
 	{
-		if (flags & ~(O_RDONLY | O_WRONLY | O_NOFOLLOW | O_SEARCH))
+		if (flags & ~(O_RDONLY | O_WRONLY | O_NOFOLLOW | O_SEARCH | O_CLOEXEC))
 			return BAN::Error::from_errno(ENOTSUP);
 
 		BAN::String absolute_path = TRY(absolute_path_of(path));