1 files changed, 28 insertions, 0 deletions
diff --git a/project2/proj2_s4498062/dns_client.py b/project2/proj2_s4498062/dns_client.py
new file mode 100644
index 0000000..ab92f31
--- /dev/null
+++ b/project2/proj2_s4498062/dns_client.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python2
+
+""" Simple DNS client
+
+A simple example of a client using the DNS resolver.
+"""
+
+import dns.resolver
+
+if __name__ == "__main__":
+    # Parse arguments
+    import argparse
+    parser = argparse.ArgumentParser(description="DNS Client")
+    parser.add_argument("hostname", help="hostname to resolve")
+    parser.add_argument("-c", "--caching", action="store_true",
+            help="Enable caching")
+    parser.add_argument("-t", "--ttl", metavar="time", type=int, default=0, 
+            help="TTL value of cached entries")
+    args = parser.parse_args()
+    
+    # Resolve hostname
+    resolver = dns.resolver.Resolver(["localhost"], 15, args.caching, args.ttl)
+    hostname, aliases, addresses = resolver.gethostbyname(args.hostname)
+    
+    # Print output
+    print(hostname)
+    print(aliases)
+    print(addresses)