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#!/usr/bin/env python3
import sys, os, time, subprocess
url = sys.argv[1]
if len(url) % 15 == 0: url += "\0"
while len(url) % 15 != 0: url += "\0"
for i in range(len(url) // 15):
subprocess.check_call(["ping", "-c", "1", "-p", "64" + "".join("{:02X}".format(ord(x)) for x in url[15*i:15*i+15]), "127.0.0.1"], stdout=subprocess.DEVNULL)
while True:
out = subprocess.check_output(["ping", "-c", "1", "-p", "65", "127.0.0.1"], stderr=subprocess.STDOUT).decode("utf-8")
if out.find("icmp_seq=1 ") != -1:
break
time.sleep(0.2)
while True:
out = subprocess.check_output(["ping", "-c", "1", "-p", "66", "127.0.0.1"], stderr=subprocess.STDOUT).decode("utf-8")
idx = out.find("icmp_seq=")
idx2 = out.find(" ", idx)
seqnum = int(out[idx+9:idx2])
n0 = seqnum % 256
n1 = seqnum >> 8
if n0 == 0: break
print(chr(n0), end="")
if n1 == 0: break
print(chr(n1), end="")
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