Chargen Ampliication filter

#by K-Metal
# a small change from my ssdp filter

import socket, sys, os, random
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
alp = ["a","b","c","d","e","f"]

if len(sys.argv) < 2:
    print "Usage: <input> <output> <size>"
    sys.exit()

file1 = sys.argv[1]
file2 = sys.argv[2]
size = int(sys.argv[3])

with open(file1) as f:
    list = f.read().splitlines()
s.settimeout(0.05)
newfile = open(file2, "w")
c = 0

while c < len(list):
    choice = random.randint(0,5)
    a = str(list[c])
    s.sendto(alp[choice], (a.split(' ', 1)[0], 19))
    try:
        conn, addr = s.recvfrom(65535)
        amp = int(len(conn)) / 43
        if int(len(conn)) >= size:
            print str(addr[0])+" "+str(len(conn))+" [x"+str(amp)+"]"
            newfile.write(str(addr[0])+" "+str(len(conn))+"\n")
    except socket.timeout and socket.error:
        i = 0
    c = c + 1
newfile.close()
os.system("chmod 0777 %s" % file2)
print "Finished"