Shellcode that bring back tty input

There are cases that you think you have been able to exploit the bug (e.g. buffer-overflow) but the program is terminated right away. You have nothing to do with your shell-code.
One of the reasons is your shell-code does not bring back the input terminal so you can not type your commands.
The solution is to try with another shell-code, like the one below. It will "closes stdin descriptor and re-opens /dev/tty, then does an execve() of /bin/sh/".


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