Util -> Utils

1 files changed, 43 insertions, 0 deletions

diff --git a/utils/network_windows.go b/utils/network_windows.go
new file mode 100755
index 00000000..ebe343a3
--- /dev/null
+++ b/utils/network_windows.go
@@ -0,0 +1,43 @@
+// +build windows
+
+package utils
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"os"
+	"strings"
+	"syscall"
+)
+
+// CreateListener crates socket listener based on DSN definition.
+func CreateListener(address string) (net.Listener, error) {
+	dsn := strings.Split(address, "://")
+	if len(dsn) != 2 {
+		return nil, errors.New("invalid DSN (tcp://:6001, unix://file.sock)")
+	}
+
+	if dsn[0] != "unix" && dsn[0] != "tcp" {
+		return nil, errors.New("invalid Protocol (tcp://:6001, unix://file.sock)")
+	}
+
+	if dsn[0] == "unix" && fileExists(dsn[1]) {
+		err := syscall.Unlink(dsn[1])
+		if err != nil {
+			return nil, fmt.Errorf("error during the unlink syscall: error %v", err)
+		}
+	}
+
+	return net.Listen(dsn[0], dsn[1])
+}
+
+// fileExists checks if a file exists and is not a directory before we
+// try using it to prevent further errors.
+func fileExists(filename string) bool {
+	info, err := os.Stat(filename)
+	if os.IsNotExist(err) {
+		return false
+	}
+	return !info.IsDir()
+}