From 77efa9c90558b2c8e2e2701c9547ff24ecd96587 Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Tue, 26 May 2026 17:56:08 -0700
Subject: [PATCH] populate OpenFileFlags

---
 Dir.zig | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Dir.zig b/Dir.zig
index 45c6b24882d19eb1c424e52d3d2b30f3b2da83de..a92452a7427ae3d40c948df9174905db4bb580b7 100644
--- a/Dir.zig
+++ b/Dir.zig
@@ -21,8 +21,14 @@ pub fn close(self: Dir) void {
 }
 
 pub fn openFile(self: Dir, sub_path: [:0]const u8, flags: OpenFileFlags) !File {
-    _ = flags;
-    return .{ .fd = @enumFromInt(try sys.openat(@intFromEnum(self.fd), sub_path.ptr, sys.O.RDONLY)) };
+    var oflag: c_int = 0;
+    oflag |= switch (flags.mode) {
+        .read_only => sys.O.RDONLY,
+        .write_only => sys.O.WRONLY,
+        .read_write => sys.O.RDWR,
+    };
+    oflag |= sys.O.CLOEXEC;
+    return .{ .fd = @enumFromInt(try sys.openat(@intFromEnum(self.fd), sub_path.ptr, oflag)) };
 }
 pub fn openFileC(self: Dir, sub_path: []const u8, flags: OpenFileFlags) !File {
     std.debug.assert(sub_path.len <= sys.PATH_MAX);
@@ -33,7 +39,7 @@ pub fn openFileC(self: Dir, sub_path: []const u8, flags: OpenFileFlags) !File {
 }
 
 pub const OpenFileFlags = packed struct {
-    //
+    mode: enum(u8) { read_only, write_only, read_write } = .read_only,
 };
 
 pub fn openDir(self: Dir, sub_path: [:0]const u8, flags: OpenDirFlags) !Dir {
-- 
2.54.0