Print ec bit details, refuse management-external-key if key is not RSA

Print ec bit details, refuse management-external-key if key is not RSA

V2: Print also curve details, add missing ifdef
V3: Goto err instead of using M_FATAL, format fixes, use
    EC_GROUP_get_curve_name + OBJ_nid2sn instead of ECPKParameters_print, add
    compat headers for 1.0.2
V4: Formatting changes and change M_ERR to M_WARN

Acked-by: Steffan Karger <steffan@karger.me>
Message-Id: <1500828336-30314-1-git-send-email-arne@rfc2549.org>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg15124.html
Signed-off-by: David Sommerseth <davids@openvpn.net>