Correct a segfault in kadmind initialization
Review Request #192 - Created April 1, 2015 and updated
4467: kadmind: segfault in acquire_accept_cred+0x140()
kadmind(1M)segfaults on startup when the kdb name is not first checked that it is null.
krb5_ktkdb_resolve()was not doing enough to ensure that the returned
keytab_id->datastruct was populated correctly. The attached patch corrects this.
This issue was first reported in illumos issue 4467