* t_std_conf.c (test_get_krbhst): Use krb5_free_krbhst to

* t_std_conf.c (test_get_krbhst): Use krb5_free_krbhst to
free buffers allocated by krb5_get_krbhst.

* locate_kdc.c (_krb5_use_dns): Add _krb_use_dns to abstract
away looking up of whether we use DNS or not in the profile.

* ktdefname.c (krb5_kt_default_name): Use profile_release_string
instead of free to free string allocated by profile_get_string.

* get_krbhst.c (krb5_get_krbhst): Copy results from profile_get_values
into malloc'ed buffers so we can safely free them later.  Also call
profile_free_list on the original values.

* locate_kdc.c (krb5_locate_kdc):
* hst_realm.c (krb5_get_host_realm):
* def_realm.c (krb5_get_default_realm): Use _krb5_use_dns to figure
out whether to use DNS or not instead of directly reading the
profile in this routine.

* realm_dom.c (krb5_get_realm_domain):
* hst_realm.c (krb5_get_host_realm):
* def_realm.c (krb5_get_default_realm): Copy results of
profile_get_string into malloc'ed buffer so it can safely be free'd
later.

* locate_kdc.c (krb5_locate_srv_conf):
* def_realm.c (krb5_get_default_realm):
* changepw.c (krb5_change_password):
* an_to_ln.c (krb5_aname_to_localname): Use profile_free_list
to free values allocated by profile_get_values.

* init_os_ctx.c (os_init_paths): Wrap use of ctx->profile_in_memory
with KRB5_DNS_LOOKUP.  Use pointer value to determine whether to free
files by checking the files value rather than depending on the
return value.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@11626 dc483132-0cff-0310-8789-dd5450dbe970