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annotate src/testdir/test_channel_unix.py @ 33776:9503dc55b5ed v9.0.2108

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patch 9.0.2108: [security]: overflow with count for :s command Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78 Author: Christian Brabandt <cb@256bit.org> Date: Tue Nov 14 20:45:48 2023 +0100 patch 9.0.2108: [security]: overflow with count for :s command Problem: [security]: overflow with count for :s command Solution: Abort the :s command if the count is too large If the count after the :s command is larger than what fits into a (signed) long variable, abort with e_value_too_large. Adds a test with INT_MAX as count and verify it correctly fails. It seems the return value on Windows using mingw compiler wraps around, so the initial test using :s/./b/9999999999999999999999999990 doesn't fail there, since the count is wrapping around several times and finally is no longer larger than 2147483647. So let's just use 2147483647 in the test, which hopefully will always cause a failure Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 16 Nov 2023 22:15:10 +0100
parents cdd13ed3e5cb
children
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1 #!/usr/bin/env python
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2 #
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3 # Server that will accept connections from a Vim channel.
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4 # Used by test_channel.vim.
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5 #
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6 # This requires Python 2.6 or later.
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7
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8 from __future__ import print_function
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9 from test_channel import ThreadedTCPServer, TestingRequestHandler, \
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10 writePortInFile
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11 import socket
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12 import threading
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13 import os
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14
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15 try:
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16 FileNotFoundError
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17 except NameError:
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18 # Python 2
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19 FileNotFoundError = (IOError, OSError)
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20
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21 if not hasattr(socket, "AF_UNIX"):
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22 raise NotImplementedError("Unix sockets are not supported on this platform")
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23
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24 class ThreadedUnixServer(ThreadedTCPServer):
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25 address_family = socket.AF_UNIX
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26
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27 class ThreadedUnixRequestHandler(TestingRequestHandler):
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28 pass
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29
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30 def main(path):
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31 server = ThreadedUnixServer(path, ThreadedUnixRequestHandler)
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32
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33 # Start a thread with the server. That thread will then start a new thread
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34 # for each connection.
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35 server_thread = threading.Thread(target=server.serve_forever)
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36 server_thread.start()
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37
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38 # Signal the test harness we're ready, the port value has no meaning.
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39 writePortInFile(1234)
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40
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41 print("Listening on {0}".format(server.server_address))
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42
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43 # Main thread terminates, but the server continues running
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44 # until server.shutdown() is called.
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45 try:
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46 while server_thread.is_alive():
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47 server_thread.join(1)
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48 except (KeyboardInterrupt, SystemExit):
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49 server.shutdown()
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50
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51 if __name__ == "__main__":
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52 try:
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53 os.remove("Xtestsocket")
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54 except FileNotFoundError:
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55 pass
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56 main("Xtestsocket")