[Heimdal-source-changes] [heimdal/heimdal] bcc0cf: krb5: check KDC supports anonymous if requested

[Luke Howard]

  Branch: refs/heads/jaltman/heimdal-7.6-fixes
  Home:   https://github.com/heimdal/heimdal
  Commit: bcc0cf473df7816a09880e3bb7796ea6ad011cb0
      https://github.com/heimdal/heimdal/commit/bcc0cf473df7816a09880e3bb7796ea6ad011cb0
  Author: Luke Howard <lukeh at padl.com>
  Date:   2019-05-18 (Sat, 18 May 2019)

  Changed paths:
    M lib/krb5/get_cred.c
    M lib/krb5/get_in_tkt.c
    M lib/krb5/init_creds_pw.c
    M lib/krb5/krb5_locl.h
    M lib/krb5/ticket.c

  Log Message:
  -----------
  krb5: check KDC supports anonymous if requested

Verify the KDC recognized the request-anonymous flag by validating the returned
client principal name.

(cherry picked from commit 014e318d6bdefd8ecfcb99ca9928921f6a49d721)