1 files changed, 16 insertions, 0 deletions
diff --git a/src/pkg/io/utils.go b/src/pkg/io/utils.go
index 96d23bcf0..f3331a20c 100644
--- a/src/pkg/io/utils.go
+++ b/src/pkg/io/utils.go
@@ -28,3 +28,19 @@ func ReadFile(filename string) ([]byte, os.Error) {
 	defer f.Close();
 	return ReadAll(f);
 }
+
+// WriteFile writes data to a file named by filename.
+// If the file does not exist, WriteFile creates it with permissions perm.
+//
+func WriteFile(filename string, data []byte, perm int) os.Error {
+	f, err := os.Open(filename, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, perm);
+	if err != nil {
+		return err;
+	}
+	n, err := f.Write(data);
+	if err == nil && n < len(data) {
+		err = ErrShortWrite;
+	}
+	f.Close();
+	return err;
+}