35 lines
875 B
Python
Executable File
35 lines
875 B
Python
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i python3 -p python3 python3Packages.pwntools
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import ctypes
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from pwn import *
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player_moves = ["paper", "scissors", "rock"]
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# computer_moves = ["rock", "paper", "scissors"]
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libc_path = ctypes.util.find_library("c")
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if libc_path is None:
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print("Error: could not find libc")
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exit(1)
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libc = ctypes.CDLL(libc_path)
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ADDR, PORT, *_ = "saturn.picoctf.net 50666".split()
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p = remote(ADDR, PORT)
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x = 0
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for i in range(5):
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p.recvuntil(b'Type \'2\' to exit the program')
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p.sendline(b'1')
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libc.srand(libc.time(None))
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p.recvuntil(b'Please make your selection (rock/paper/scissors)')
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choice = libc.rand() % 3
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player_move = player_moves[choice]
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p.sendline(player_move.encode())
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print(f'Round {i + 1}')
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p.recvuntil(b'You win!')
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p.recvuntil(b'Congrats, here\'s the flag!\r\n')
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print(p.recvline().decode().strip())
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p.close()
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