Script to correctly answer prog100-alien_dna1 @ 3dsctf-2k16

alien_dna1.py

## Script to correctly answer prog100-alien_dna1 @ 3dsctf-2k16
# @author intrd - http://dann.com.br/
# @license Creative Commons Attribution-ShareAlike 4.0 International License - http://creativecommons.org/licenses/by-sa/4.0/

# int_netcat.py - https://gist.github.com/intrd/00a39c83f752acf81775bfa9721e745a

import socket, re, sys
sys.path.append("../../LIBS/")
from int_netcat import Netcat

def dna_sub(am1, am2):
	amslen=len(am1)
	i=0
	for character in am1:
		if character==am2[i]:
			amslen-=1
		i+=1
	return amslen

nc = Netcat('54.175.35.248', 8001)

data=nc.read_until(':')
print(data)
number=re.search(r'type (.*):', data).group(1)
print(number)
nc.write(number + '\n')

for x in range(0, 99999):
	data=nc.read_until('answer is:')
	sample1=re.search(r'Sample 01: (.*) -', data).group(1)
	print(sample1)
	sample2=re.search(r'Sample 02: (.*)\n', data).group(1)
	print(sample2)
	answer=dna_sub(sample1,sample2)
	print(sample1+"-"+sample2+"="+str(answer))
	nc.write(str(answer) + '\n')
	#print(data)

# am1="TTTG"
# am2="ATTC"
# answer=dna_sub(am1,am2)
# print(am1+"-"+am2+"="+str(answer))

# am1="CGCT"
# am2="CAGC"
# answer=dna_sub(am1,am2)
# print(am1+"-"+am2+"="+str(answer))