Create Portscan.py

Portscan.py

@@ -0,0 +1,45 @@
+import socket
+import sys
+
+def scanner(target, port):
+    #Banner Time
+    print("-" * 50)
+    print("Scanning: "+target)
+    print("Port Number: "+port)
+    print("-" * 50)
+
+    try:
+        s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        socket.setdefaulttimeout(1)
+        result = s.connect_ex((target, port))
+        if result == 0:
+            print("Port {port} is open.")
+        s.close()
+    except KeyboardInterrupt:
+        print("Closing Program")
+        sys.exit()
+
+def main():
+    f=0
+    while f==0:
+        try:
+            if sys.argv == 3:
+                target = socket.gethostbyname(sys.argv[1])
+                port = sys.arg[2]
+            else:
+                print("Error Incorrect Syntax.\n Expected portscan.py <ip> <portnumber>")
+            
+            while i != 1:
+                if port not in range(1,65535):
+                    port = input("Please enter a valid port:\n")
+                else:
+                    i = 1
+            
+            scanner(target, port)
+            f=1
+        except KeyboardInterrupt:
+            print("Closing Program")
+            sys.exit()
+
+        except socket.gaierror:
+            target = input("Please enter a valid IP or Hostname:\n")