From 1ba3539deaae8fe68b28e93dc533ef2d6653a9ad Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Sun, 20 Apr 2025 02:39:02 -0700
Subject: [PATCH] add tests

---
 mod.zig  | 8 ++++----
 test.zig | 9 +++++++++
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/mod.zig b/mod.zig
index 2e8ac3a287a4eab65b5b79dfd063954ed56ed626..927355ec8d3f971f88886196432d13949db5e92c 100644
--- a/mod.zig
+++ b/mod.zig
@@ -19,10 +19,10 @@ fn _errno(rc: usize) enum(c_ushort) { ok, _ } {
 // ssize_t read(int fd, void buf[.count], size_t count);
 // asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
 pub fn read(fd: c_int, buf: []u8) errno.Error!usize {
-    const r = syscall3(.read, fd, buf.ptr, buf.len);
+    const r = syscall3(.read, @intCast(fd), @intFromPtr(buf.ptr), buf.len);
     return switch (_errno(r)) {
         .ok => @intCast(r),
-        _ => |c| errno.errorFromInt(c),
+        _ => |c| errno.errorFromInt(@intFromEnum(c)),
     };
 }
 
@@ -30,10 +30,10 @@ pub fn read(fd: c_int, buf: []u8) errno.Error!usize {
 // ssize_t write(int fd, const void buf[.count], size_t count);
 // asmlinkage long sys_write(unsigned int fd, const char __user *buf, size_t count);
 pub fn write(fd: c_int, buf: []const u8) errno.Error!usize {
-    const r = syscall3(.write, fd, buf.ptr, buf.len);
+    const r = syscall3(.write, @intCast(fd), @intFromPtr(buf.ptr), buf.len);
     return switch (_errno(r)) {
         .ok => @intCast(r),
-        _ => |c| errno.errorFromInt(c),
+        _ => |c| errno.errorFromInt(@intFromEnum(c)),
     };
 }
 
diff --git a/test.zig b/test.zig
index 95a0b682a71942e4010a9c8ee96461fb9a3b53a3..a0ba83ba722bd28a1a4484f6b19ebd986fe63ba8 100644
--- a/test.zig
+++ b/test.zig
@@ -1 +1,10 @@
 const std = @import("std");
+const builtin = @import("builtin");
+const linux = @import("sys-linux");
+
+test {
+    if (builtin.target.os.tag != .linux) return;
+    if (builtin.target.cpu.arch != .x86_64) return;
+    _ = &linux.read;
+    _ = &linux.write;
+}
-- 
2.54.0