From cf1a8af5556b1d8eab68802918c881ae1a0b89eb Mon Sep 17 00:00:00 2001
From: Pavel Březina <pbrezina@redhat.com>
Date: Sep 26 2013 19:11:51 +0000
Subject: util: add get_domains_head()


This function will return head of the domain list.

Resolves:
https://fedorahosted.org/sssd/ticket/2066

---

diff --git a/src/util/domain_info_utils.c b/src/util/domain_info_utils.c
index 7b1eb1a..7ac4d9d 100644
--- a/src/util/domain_info_utils.c
+++ b/src/util/domain_info_utils.c
@@ -27,6 +27,19 @@
 /* the directory domain - realm mappings are written to */
 #define KRB5_MAPPING_DIR PUBCONF_PATH"/krb5.include.d"
 
+struct sss_domain_info *get_domains_head(struct sss_domain_info *domain)
+{
+    struct sss_domain_info *dom = NULL;
+
+    /* get to the top level domain */
+    for (dom = domain; dom->parent != NULL; dom = dom->parent);
+
+    /* proceed to the list head */
+    for (; dom->prev != NULL; dom = dom->prev);
+
+    return dom;
+}
+
 struct sss_domain_info *get_next_domain(struct sss_domain_info *domain,
                                         bool descend)
 {
diff --git a/src/util/util.h b/src/util/util.h
index 20d230c..6cd59d9 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -543,6 +543,8 @@ struct sized_string {
 void to_sized_string(struct sized_string *out, const char *in);
 
 /* from domain_info.c */
+struct sss_domain_info *get_domains_head(struct sss_domain_info *domain);
+
 struct sss_domain_info *get_next_domain(struct sss_domain_info *domain,
                                         bool descend);
 struct sss_domain_info *find_subdomain_by_name(struct sss_domain_info *domain,