podman_tty.py

import socket
import select, sys, os, tty, atexit, termios

sock = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)

# stdin 1
# stdout 2
# stderr 3
def reset_fd(my_fd, old_settings):
    termios.tcsetattr(my_fd, termios.TCSADRAIN, old_settings)
    os.close(my_fd)

if len(sys.argv) != 2:
    print("pass the path to the container's attach socket")
    sys.exit(1)

sock.connect(sys.argv[1])

stdin = os.open("/dev/stdin", os.O_RDWR)
old_settings = termios.tcgetattr(stdin)
atexit.register(reset_fd, stdin, old_settings)
tty.setraw(stdin)

inputs = [sock, stdin]
outputs = []

while inputs:
    readable, writable, exceptional = select.select(inputs, outputs, inputs)
    for r in readable:
        if isinstance(r, socket.socket):
            data = r.recv(1024)
            os.write(2, data[1:])

        if isinstance(r, int):
            data = os.read(stdin, 1024)
            if 29 in data:  # Bail on ctrl-[
                sys.exit(0)
            sock.send(data)