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alienrobotarmy / ctunnel

ctunnel is a proxy and VPN software for tunneling TCP and UDP connections securely
GNU General Public License v3.0
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ctunnel "client" option core dumped #15

Closed bhzhu203 closed 2 years ago

bhzhu203 commented 4 years ago

example1: ./ctunnel -V -c -n -C rc4 ctunnel 0.7 Copyright (C) 2008-2014 Jess Mahan Enter Key [16 Characters]: 1234567891234567 Enter IV [16 Characters]: 1234567891234567 [ctunnel] ctunnel 0.7 starting [ctunnel] TCP [OpenSSL] VPN using rc4 Segmentation fault

example2: ./ctunnel -V -f 127.0.0.1:8889 -c -t 2 -n -C plain ctunnel 0.7 Copyright (C) 2008-2014 Jess Mahan [ctunnel] ctunnel 0.7 starting Segmentation fault (core dumped)

example3: ./ctunnel -V -l 127.0.0.1:8889 -c -t 2 -n -C rc4 ctunnel 0.7 Copyright (C) 2008-2014 Jess Mahan [ctunnel] ctunnel 0.7 starting [ctunnel] TCP [OpenSSL] VPN using rc4 Segmentation fault (core dumped)

coredump.tar.gz

  1. the version info is not updated ,still 0.7

  2. client option always crash with " -C plain" option

  3. ./ctunnel -V -f 127.0.0.1:8889 -c -t 2 -n -C plain bad ./ctunnel -V -f 127.0.0.1:8889 -c -t 2 -n -C cr4 good

  4. sometimes client is not conected with server , crashed (not sure)

  5. -c option with -l (not -f) crashed

alienrobotarmy commented 4 years ago

I noticed that in every example you didn't specify a listen address with -l.

You should have received an error message about missing the -l option, which is a bug. But just be aware that without a listen address ctunnel will not function properly.

alienrobotarmy commented 4 years ago

I will have an update for these issues in a few hours

alienrobotarmy commented 4 years ago

I have updated master with what I believe should address all of your issues.

Please also be advised that when using -V (VPN Mode), you should also specify -U (UDP Mode). VPN's don't function well using TCP.