Implemented MAC1/2 calculation

src/logger.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"log"
+	"os"
+)
+
+const (
+	LogLevelError = iota
+	LogLevelInfo
+	LogLevelDebug
+)
+
+type Logger struct {
+	Debug *log.Logger
+	Info  *log.Logger
+	Error *log.Logger
+}
+
+func NewLogger() *Logger {
+	logger := new(Logger)
+	logger.Debug = log.New(os.Stdout,
+		"DEBUG: ",
+		log.Ldate|log.Ltime|log.Lshortfile,
+	)
+	logger.Info = log.New(os.Stdout,
+		"INFO: ",
+		log.Ldate|log.Ltime|log.Lshortfile,
+	)
+	logger.Error = log.New(os.Stdout,
+		"ERROR: ",
+		log.Ldate|log.Ltime|log.Lshortfile,
+	)
+	return logger
+}