From faee6e5d1569075cf148744c95bd532b69c43028 Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Sun, 24 Aug 2025 02:38:37 -0700
Subject: [PATCH] it's alive!

---
 Dir.zig      | 21 +++++++++++++++++++++
 File.zig     | 39 +++++++++++++++++++++++++++++++++++++++
 README.md    |  2 ++
 licenses.txt | 10 ++++++++++
 nfs.zig      | 15 +++++++++++++++
 zigmod.yml   |  3 +++
 6 files changed, 90 insertions(+)
 create mode 100644 Dir.zig
 create mode 100644 File.zig

diff --git a/Dir.zig b/Dir.zig
new file mode 100644
index 0000000000000000000000000000000000000000..e2d5e240b98da43d6591376154e9ad32e97ea010
--- /dev/null
+++ b/Dir.zig
@@ -0,0 +1,21 @@
+const std = @import("std");
+const sys_libc = @import("sys-libc");
+
+const nfs = @import("./nfs.zig");
+const File = nfs.File;
+const Dir = @This();
+
+fd: nfs.Handle,
+
+pub fn close(self: Dir) void {
+    sys_libc.close(self.fd) catch {};
+}
+
+pub fn openFile(self: Dir, sub_path: [:0]const u8, flags: OpenFileFlags) !File {
+    _ = flags;
+    return .{ .fd = @enumFromInt(try sys_libc.openat(@intFromEnum(self.fd), sub_path.ptr, sys_libc.O.RDONLY)) };
+}
+
+pub const OpenFileFlags = packed struct {
+    //
+};
diff --git a/File.zig b/File.zig
new file mode 100644
index 0000000000000000000000000000000000000000..0707568d77aa828b4b18cc216d17efa0bfec4026
--- /dev/null
+++ b/File.zig
@@ -0,0 +1,39 @@
+const std = @import("std");
+const builtin = @import("builtin");
+const sys_libc = @import("sys-libc");
+const nio = @import("nio");
+const errno = @import("errno");
+
+const nfs = @import("./nfs.zig");
+const Dir = nfs.Dir;
+const File = @This();
+
+fd: nfs.Handle,
+
+pub fn close(self: File) void {
+    sys_libc.close(@intFromEnum(self.fd)) catch {};
+}
+
+pub const ReadError = switch (builtin.target.os.tag) {
+    .linux,
+    => errno.Error,
+    else => @compileError("TODO"),
+};
+pub usingnamespace nio.Readable(@This());
+pub fn read(self: File, buffer: []u8) ReadError!usize {
+    return sys_libc.read(@intFromEnum(self.fd), buffer);
+}
+
+pub fn anyReadable(self: File) nio.AnyReadable {
+    const S = struct {
+        fn foo(s: *anyopaque, buffer: []u8) anyerror!usize {
+            const fd: nfs.Handle = @enumFromInt(@intFromPtr(s));
+            const f: File = .{ .fd = fd };
+            return f.read(buffer);
+        }
+    };
+    return .{
+        .readFn = S.foo,
+        .state = @ptrFromInt(@as(usize, @bitCast(@as(isize, @intCast(@intFromEnum(self.fd)))))),
+    };
+}
diff --git a/README.md b/README.md
index 2b2c8fb1913a8ec9cedeb0337e13caa089a9526a..b35c3aa19ecbf83248577343fd0b22d1081453e4 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,5 @@
 [![Zigmod](https://img.shields.io/badge/Zigmod-latest-f7a41d)](https://github.com/nektro/zigmod)
 
 Nektro's Filesystem, an alternative to `std.fs`.
+
+Some code ported from Zig 0.14.1, via MIT Copyright (c) Zig contributors. New code MPL-2.0.
diff --git a/licenses.txt b/licenses.txt
index 38f772be6082b61f8cf89b7e597e98d02d63f6b8..e1abb7bfd5f306ef3813567449b7e77d5f5cc34b 100644
--- a/licenses.txt
+++ b/licenses.txt
@@ -1,3 +1,13 @@
 MPL-2.0:
 = https://spdx.org/licenses/MPL-2.0
 - This
+- git https://github.com/nektro/zig-nio
+
+MIT:
+= https://spdx.org/licenses/MIT
+- git https://github.com/nektro/zig-errno
+- git https://github.com/nektro/zig-libc
+- git https://github.com/nektro/zig-sys-libc
+
+Unspecified:
+- system_lib c
diff --git a/nfs.zig b/nfs.zig
index 95a0b682a71942e4010a9c8ee96461fb9a3b53a3..b65cfc1e5c40422f86acba9be3ad399c857394a3 100644
--- a/nfs.zig
+++ b/nfs.zig
@@ -1 +1,16 @@
 const std = @import("std");
+const builtin = @import("builtin");
+const sys_libc = @import("sys-libc");
+
+pub const Dir = @import("./Dir.zig");
+pub const File = @import("./File.zig");
+
+pub const Handle = switch (builtin.target.os.tag) {
+    .linux,
+    => enum(c_int) { _ },
+    else => @compileError("TODO"),
+};
+
+pub fn cwd() Dir {
+    return .{ .fd = @enumFromInt(sys_libc.AT.FDCWD) };
+}
diff --git a/zigmod.yml b/zigmod.yml
index 324005534e2c45661e7446dffb67fed9f0c8e783..3fc46646c3eb4d4d7d976413794f670fa4c13a42 100644
--- a/zigmod.yml
+++ b/zigmod.yml
@@ -6,3 +6,6 @@ description: Nektro's Filesystem, an alternative to std.fs
 min_zig_version: 0.14.0
 min_zigmod_version: r96
 dependencies:
+  - src: git https://github.com/nektro/zig-sys-libc
+  - src: git https://github.com/nektro/zig-nio
+  - src: git https://github.com/nektro/zig-errno
-- 
2.54.0