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"""
This Python script creates a named pipe server that does nothing but send its input
back to the client that connects to it. Only one argument must be given, the path
of a named pipe to bind to.
"""
import os
import socket
import sys
def main():
if len(sys.argv) < 2:
sys.exit('You must specify a filepath')
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
if os.path.exists(sys.argv[1]):
os.remove(sys.argv[1])
sock.bind(sys.argv[1])
sock.listen(0)
pid = os.fork()
if pid:
print(pid)
sys.exit()
while True:
connection = sock.accept()[0]
connection.settimeout(5)
while True:
try:
connection.send(connection.recv(1024))
except socket.timeout:
break
connection.close()
if __name__ == "__main__":
main()
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