Bug report

Bug description:

socket.send_fds accepts flags and address parameters, but they aren't passed down to socket.sendmsg.

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Linked PRs

• gh-127840: pass flags and address from send_fds #127841
• [3.14] gh-127840: pass flags and address from send_fds (GH-127841) #134474
• [3.13] gh-127840: pass flags and address from send_fds (GH-127841) #134475
• gh-127840: Revert "gh-127840: pass flags and address from send_fds (GH-127841)" #134482