ssl.SSLSocket.shared_ciphers always returns server cipher list

[benfogle]

Bug report

The function ssl.SSLSocket.shared_ciphers always returns the server's cipher list, rather than the ciphers common to both client and server. I.e., the same list as ssl.SSLContext.get_ciphers, in a different format.

This is due to the use of SSL_get_ciphers in the implementation, rather than SSL_get_shared_ciphers.

Your environment

• CPython versions tested on: 3.8.10, 3.12.0a0
• Operating system and architecture: Ubuntu 20.04, x86_64

Linked PRs

• gh-96931: Fix incorrect results in ssl.SSLSocket.shared_ciphers #96932
• [3.11] gh-96931: Fix incorrect results in ssl.SSLSocket.shared_ciphers (GH-96932) #102918
• [3.10] gh-96931: Fix incorrect results in ssl.SSLSocket.shared_ciphers (GH-96932) #102919