feat(example): Add socket ipv4 and ipv6 example

Commit ID: b650d19c

examples/protocols/sockets/scripts/udpserver.py

@@ -0,0 +1,51 @@
+# This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+# Unless required by applicable law or agreed to in writing, this
+# software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+# CONDITIONS OF ANY KIND, either express or implied.
+
+# -*- coding: utf-8 -*-
+
+import socket
+import sys
+
+# -----------  Config  ---------- 
+IP_VERSION = 'IPv4'
+PORT = 3333;
+# -------------------------------
+
+if IP_VERSION == 'IPv4':
+    family_addr = socket.AF_INET
+elif IP_VERSION == 'IPv6':
+    family_addr = socket.AF_INET6
+else:
+    print('IP_VERSION must be IPv4 or IPv6')
+    sys.exit(1)
+
+
+try :
+    sock = socket.socket(family_addr, socket.SOCK_DGRAM)
+    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+except socket.error as msg :
+    print('Failed to create socket. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
+    sys.exit()
+
+try:
+    sock.bind(('', PORT))
+except socket.error as msg:
+    print('Bind failed. Error: ' + str(msg[0]) + ': ' + msg[1])
+    sys.exit()
+
+while True:
+    try :
+        print('Waiting for data...')
+        data, addr = sock.recvfrom(1024)
+        if not data: break
+        data = data.decode()
+        print('Reply[' + addr[0] + ':' + str(addr[1]) + '] - ' + data)
+        reply = 'OK ' + data
+        sock.sendto(reply.encode(), addr)
+    except socket.error as msg:
+        print('Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
+
+sock.close()