import socket
import time
import struct
import sys
import os

if len(sys.argv) != 6:
    print("wrong number of params: host port database user replication")
    sys.exit(1)

print "connecting"
conn = socket.create_connection((sys.argv[1], sys.argv[2]))

data = bytes();

# send protocol version
data = struct.pack('>I', 0x00030000)

# database
data += "database"
data += struct.pack('B', 0)
data += sys.argv[3]
data += struct.pack('B', 0)

# user
data += "user"
data += struct.pack('B', 0)
data += sys.argv[4]
data += struct.pack('B', 0)

# replication
data += "replication"
data += struct.pack('B', 0)
data += sys.argv[5]
data += struct.pack('B', 0)

# start packet terminator
data += struct.pack('B', 0)

print "sending startup packet"
# length of the length + length of the startup packet
conn.send(struct.pack('>i', 4 + len(data)))

# version
conn.send(data)

print "and going idle"
# and now sleep
time.sleep(3600)