2 files changed, 17 insertions, 0 deletions
diff --git a/src/util/util.c b/src/util/util.c
index 480296766..fb3bed146 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -724,3 +724,18 @@ int domain_to_basedn(TALLOC_CTX *memctx, const char *domain, char **basedn)
     *basedn = dn;
     return EOK;
 }
+
+bool is_host_in_domain(const char *host, const char *domain)
+{
+    int diff = strlen(host) - strlen(domain);
+
+    if (diff == 0 && strcmp(host, domain) == 0) {
+        return true;
+    }
+
+    if (diff > 0 && strcmp(host + diff, domain) == 0 && host[diff - 1] == '.') {
+        return true;
+    }
+
+    return false;
+}
diff --git a/src/util/util.h b/src/util/util.h
index 516edc81c..c2c31f5d5 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -506,6 +506,8 @@ void safezero(void *data, size_t size);
 
 int domain_to_basedn(TALLOC_CTX *memctx, const char *domain, char **basedn);
 
+bool is_host_in_domain(const char *host, const char *domain);
+
 /* from nscd.c */
 enum nscd_db {
     NSCD_DB_PASSWD,