s4:ldb Add a function to match a message against an objectClass

(as objectClass will always be a case insensitive ascii string, we can
make a much simpler match function here than for the general case).

Andrew Bartlett

2 files changed, 22 insertions, 0 deletions

diff --git a/source4/lib/ldb/common/ldb_match.c b/source4/lib/ldb/common/ldb_match.c
index e6ee0de027..f639effc96 100644
--- a/source4/lib/ldb/common/ldb_match.c
+++ b/source4/lib/ldb/common/ldb_match.c
@@ -426,3 +426,22 @@ int ldb_match_msg(struct ldb_context *ldb,
 
 	return ldb_match_message(ldb, msg, tree, scope);
 }
+
+int ldb_match_msg_objectclass(const struct ldb_message *msg,
+			      const char *objectclass)
+{
+	int i;
+	struct ldb_message_element *el = ldb_msg_find_element(msg, "objectClass");
+	if (!el) {
+		return 0;
+	}
+	for (i=0; i < el->num_values; i++) {
+		if (ldb_attr_cmp((const char *)el->values[i].data, objectclass) == 0) {
+			return 1;
+		}
+	}
+	return 0;
+}
+
+
+			      
diff --git a/source4/lib/ldb/include/ldb_module.h b/source4/lib/ldb/include/ldb_module.h
index 7c18683201..0b0f863fec 100644
--- a/source4/lib/ldb/include/ldb_module.h
+++ b/source4/lib/ldb/include/ldb_module.h
@@ -126,6 +126,9 @@ int ldb_match_msg(struct ldb_context *ldb,
 		  struct ldb_dn *base,
 		  enum ldb_scope scope);
 
+int ldb_match_msg_objectclass(const struct ldb_message *msg,
+			      const char *objectclass);
+
 /* The following definitions come from lib/ldb/common/ldb_modules.c  */
 
 struct ldb_module *ldb_module_new(TALLOC_CTX *memctx,