Description
Please check this repo whether this is a known issue
See also #1843
Command line / docker command to reproduce
testssl.sh -q --ip=one --color 0 -t xmpp jabber.org:5222
vs.
docker build . -t imagefoo && docker run --rm -t imagefoo -q --ip=one --color 0 -t xmpp jabber.org:5222
The latter fails @ The results might look ok but they could be nonsense. Really proceed ? ("yes" to continue)
Expected behavior
There shouldn't be a difference between running in a docker container or not
Your system (please complete the following information):
It happens in any Alpine container (tried 3.11, 3.12, 3.13)
Additional context
The container fails in determine_optimal_proto(). Somehow
/home/testssl/bin/openssl.Linux.x86_64 s_client -tls1_2 -connect jabber.org:5222 -msg -starttls xmpp -servername jabber.org -no_comp (and other protocols) fail. This is not the case using the bare cmd line
./bin/openssl.Linux.x86_64 s_client -tls1_2 -connect jabber.org:5222 -msg -starttls xmpp -servername jabber.org -no_comp