On the '1.3.x-r1902208+r1902304' branch: Merge r1902208, r1902304 from trunk:

- r1902208: Add support for BIO_CTRL_EOF, which is being used by OpenSSL 3.0+
  and OpenSSL 1.1.1e.
- r1902304: Fix the return value for unknown controls in the BIO control
  functions.

Resolve the conflicts and adjust the change to the state of the 1.3.x branch.


git-svn-id: https://svn.apache.org/repos/asf/serf/branches/1.3.x-r1902208+r1902304@1909397 13f79535-47bb-0310-9956-ffa450edef68
3 files changed