1 files changed, 4 insertions, 4 deletions
diff --git a/src/monitor.py b/src/monitor.py
index 2bd72e6..83732e7 100644
--- a/src/monitor.py
+++ b/src/monitor.py
@@ -82,9 +82,9 @@ class Monitor:
     def wifi_ioctl(self, iface, func, arg=None):
         """Prepares some variables for wifi and runs ioctl"""
         if not arg:
-            data = (iface + '\0' * 32)[:32]
+            data = (iface.encode() + b'\0' * 32)[:32]
         else:
-            data = (iface + '\0' * 16)[:16] + arg
+            data = (iface.encode() + b'\0' * 16)[:16] + arg
         try:
             res = self.ioctl(func, data)
             return res
@@ -113,11 +113,11 @@ class Monitor:
 
     def wifi_get_essid(self, iface):
         """Get current essid for an interface"""
-        buffer = array.array('c', '\0' * 16)
+        buffer = array.array('b', b'\0' * 16)
         addr, length = buffer.buffer_info()
         arg = struct.pack('Pi', addr, length)
         self.wifi_ioctl(iface, self.SIOCGIWESSID, arg)
-        return buffer.tostring().strip('\0')
+        return buffer.tobytes().strip(b'\0')
 
     def wifi_get_mode(self, iface):
         """Get current mode from an interface"""