Vendor Go modules

go/vendor/github.com/hectane/go-acl/apply.go

@@ -0,0 +1,55 @@
+//+build windows
+
+package acl
+
+import (
+	"github.com/hectane/go-acl/api"
+	"golang.org/x/sys/windows"
+
+	"unsafe"
+)
+
+// Apply the provided access control entries to a file. If the replace
+// parameter is true, existing entries will be overwritten. If the inherit
+// parameter is true, the file will inherit ACEs from its parent.
+func Apply(name string, replace, inherit bool, entries ...api.ExplicitAccess) error {
+	var oldAcl windows.Handle
+	if !replace {
+		var secDesc windows.Handle
+		api.GetNamedSecurityInfo(
+			name,
+			api.SE_FILE_OBJECT,
+			api.DACL_SECURITY_INFORMATION,
+			nil,
+			nil,
+			&oldAcl,
+			nil,
+			&secDesc,
+		)
+		defer windows.LocalFree(secDesc)
+	}
+	var acl windows.Handle
+	if err := api.SetEntriesInAcl(
+		entries,
+		oldAcl,
+		&acl,
+	); err != nil {
+		return err
+	}
+	defer windows.LocalFree((windows.Handle)(unsafe.Pointer(acl)))
+	var secInfo uint32
+	if !inherit {
+		secInfo = api.PROTECTED_DACL_SECURITY_INFORMATION
+	} else {
+		secInfo = api.UNPROTECTED_DACL_SECURITY_INFORMATION
+	}
+	return api.SetNamedSecurityInfo(
+		name,
+		api.SE_FILE_OBJECT,
+		api.DACL_SECURITY_INFORMATION|secInfo,
+		nil,
+		nil,
+		acl,
+		0,
+	)
+}