1 files changed, 171 insertions, 0 deletions
diff --git a/src/syscall/syscall_windows_test.go b/src/syscall/syscall_windows_test.go
new file mode 100644
index 0000000..3b56721
--- /dev/null
+++ b/src/syscall/syscall_windows_test.go
@@ -0,0 +1,171 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package syscall_test
+
+import (
+	"fmt"
+	"internal/testenv"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"syscall"
+	"testing"
+)
+
+func TestOpen_Dir(t *testing.T) {
+	dir := t.TempDir()
+
+	h, err := syscall.Open(dir, syscall.O_RDONLY, 0)
+	if err != nil {
+		t.Fatalf("Open failed: %v", err)
+	}
+	syscall.CloseHandle(h)
+	h, err = syscall.Open(dir, syscall.O_RDONLY|syscall.O_TRUNC, 0)
+	if err == nil {
+		t.Error("Open should have failed")
+	} else {
+		syscall.CloseHandle(h)
+	}
+	h, err = syscall.Open(dir, syscall.O_RDONLY|syscall.O_CREAT, 0)
+	if err == nil {
+		t.Error("Open should have failed")
+	} else {
+		syscall.CloseHandle(h)
+	}
+}
+
+func TestWin32finddata(t *testing.T) {
+	dir := t.TempDir()
+
+	path := filepath.Join(dir, "long_name.and_extension")
+	f, err := os.Create(path)
+	if err != nil {
+		t.Fatalf("failed to create %v: %v", path, err)
+	}
+	f.Close()
+
+	type X struct {
+		fd  syscall.Win32finddata
+		got byte
+		pad [10]byte // to protect ourselves
+
+	}
+	var want byte = 2 // it is unlikely to have this character in the filename
+	x := X{got: want}
+
+	pathp, _ := syscall.UTF16PtrFromString(path)
+	h, err := syscall.FindFirstFile(pathp, &(x.fd))
+	if err != nil {
+		t.Fatalf("FindFirstFile failed: %v", err)
+	}
+	err = syscall.FindClose(h)
+	if err != nil {
+		t.Fatalf("FindClose failed: %v", err)
+	}
+
+	if x.got != want {
+		t.Fatalf("memory corruption: want=%d got=%d", want, x.got)
+	}
+}
+
+func abort(funcname string, err error) {
+	panic(funcname + " failed: " + err.Error())
+}
+
+func ExampleLoadLibrary() {
+	h, err := syscall.LoadLibrary("kernel32.dll")
+	if err != nil {
+		abort("LoadLibrary", err)
+	}
+	defer syscall.FreeLibrary(h)
+	proc, err := syscall.GetProcAddress(h, "GetVersion")
+	if err != nil {
+		abort("GetProcAddress", err)
+	}
+	r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0, 0)
+	major := byte(r)
+	minor := uint8(r >> 8)
+	build := uint16(r >> 16)
+	print("windows version ", major, ".", minor, " (Build ", build, ")\n")
+}
+
+func TestTOKEN_ALL_ACCESS(t *testing.T) {
+	if syscall.TOKEN_ALL_ACCESS != 0xF01FF {
+		t.Errorf("TOKEN_ALL_ACCESS = %x, want 0xF01FF", syscall.TOKEN_ALL_ACCESS)
+	}
+}
+
+func TestStdioAreInheritable(t *testing.T) {
+	testenv.MustHaveGoBuild(t)
+	testenv.MustHaveCGO(t)
+	testenv.MustHaveExecPath(t, "gcc")
+
+	tmpdir := t.TempDir()
+
+	// build go dll
+	const dlltext = `
+package main
+
+import "C"
+import (
+	"fmt"
+)
+
+//export HelloWorld
+func HelloWorld() {
+	fmt.Println("Hello World")
+}
+
+func main() {}
+`
+	dllsrc := filepath.Join(tmpdir, "helloworld.go")
+	err := os.WriteFile(dllsrc, []byte(dlltext), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+	dll := filepath.Join(tmpdir, "helloworld.dll")
+	cmd := exec.Command(testenv.GoToolPath(t), "build", "-o", dll, "-buildmode", "c-shared", dllsrc)
+	out, err := testenv.CleanCmdEnv(cmd).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to build go library: %s\n%s", err, out)
+	}
+
+	// build c exe
+	const exetext = `
+#include <stdlib.h>
+#include <windows.h>
+int main(int argc, char *argv[])
+{
+	system("hostname");
+	((void(*)(void))GetProcAddress(LoadLibraryA(%q), "HelloWorld"))();
+	system("hostname");
+	return 0;
+}
+`
+	exe := filepath.Join(tmpdir, "helloworld.exe")
+	cmd = exec.Command("gcc", "-o", exe, "-xc", "-")
+	cmd.Stdin = strings.NewReader(fmt.Sprintf(exetext, dll))
+	out, err = testenv.CleanCmdEnv(cmd).CombinedOutput()
+	if err != nil {
+		t.Fatalf("failed to build c executable: %s\n%s", err, out)
+	}
+	out, err = exec.Command(exe).Output()
+	if err != nil {
+		t.Fatalf("c program execution failed: %v: %v", err, string(out))
+	}
+
+	hostname, err := os.Hostname()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	have := strings.ReplaceAll(string(out), "\n", "")
+	have = strings.ReplaceAll(have, "\r", "")
+	want := fmt.Sprintf("%sHello World%s", hostname, hostname)
+	if have != want {
+		t.Fatalf("c program output is wrong: got %q, want %q", have, want)
+	}
+}