HEIMDAL: move code from source4/heimdal* to third_party/heimdal*

This makes it clearer that we always want to do heimdal changes
via the lorikeet-heimdal repository.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>

Autobuild-User(master): Joseph Sutton <jsutton@samba.org>
Autobuild-Date(master): Wed Jan 19 21:41:59 UTC 2022 on sn-devel-184

1 files changed, 80 insertions, 0 deletions

diff --git a/third_party/heimdal/lib/krb5/get_default_realm.c b/third_party/heimdal/lib/krb5/get_default_realm.c
new file mode 100644
index 00000000000..81a55bb15a6
--- /dev/null
+++ b/third_party/heimdal/lib/krb5/get_default_realm.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 1997 - 2001, 2004 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "krb5_locl.h"
+
+/*
+ * Return a NULL-terminated list of default realms in `realms'.
+ * Free this memory with krb5_free_host_realm.
+ */
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_get_default_realms (krb5_context context,
+			 krb5_realm **realms)
+{
+    if (context->default_realms == NULL) {
+	krb5_error_code ret = krb5_set_default_realm (context, NULL);
+	if (ret)
+	    return KRB5_CONFIG_NODEFREALM;
+    }
+
+    return krb5_copy_host_realm (context,
+				 context->default_realms,
+				 realms);
+}
+
+/*
+ * Return the first default realm.  For compatibility.
+ */
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_get_default_realm(krb5_context context,
+		       krb5_realm *realm)
+{
+    krb5_error_code ret;
+    char *res;
+
+    if (context->default_realms == NULL
+	|| context->default_realms[0] == NULL) {
+	krb5_clear_error_message(context);
+	ret = krb5_set_default_realm (context, NULL);
+	if (ret)
+	    return ret;
+    }
+
+    res = strdup (context->default_realms[0]);
+    if (res == NULL)
+	return krb5_enomem(context);
+    *realm = res;
+    return 0;
+}