1 files changed, 133 insertions, 0 deletions
diff --git a/source4/lib/ldb/common/ldb_msg.c b/source4/lib/ldb/common/ldb_msg.c
new file mode 100644
index 0000000000..633cc91f2c
--- /dev/null
+++ b/source4/lib/ldb/common/ldb_msg.c
@@ -0,0 +1,133 @@
+/* 
+   ldb database library
+
+   Copyright (C) Andrew Tridgell  2004
+
+     ** NOTE! The following LGPL license applies to the ldb
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/*
+ *  Name: ldb
+ *
+ *  Component: ldb message component utility functions
+ *
+ *  Description: functions for manipulating ldb_message structures
+ *
+ *  Author: Andrew Tridgell
+ */
+
+#include "includes.h"
+
+
+/*
+  find an element in a message by attribute name
+*/
+struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg, 
+						 const char *attr_name)
+{
+	int i;
+	for (i=0;i<msg->num_elements;i++) {
+		if (strcmp(msg->elements[i].name, attr_name) == 0) {
+			return &msg->elements[i];
+		}
+	}
+	return NULL;
+}
+
+
+/*
+  find a value in an element
+*/
+struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el, 
+				 struct ldb_val *val)
+{
+	int i;
+	for (i=0;i<el->num_values;i++) {
+		if (ldb_val_equal(val, &el->values[i])) {
+			return &el->values[i];
+		}
+	}
+	return NULL;
+}
+
+
+/*
+  add an empty element to a message
+*/
+int ldb_msg_add_empty(struct ldb_message *msg, const char *attr_name, int flags)
+{
+	struct ldb_message_element *els;
+
+	els = realloc_p(msg->elements, struct ldb_message_element, msg->num_elements+1);
+	if (!els) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	els[msg->num_elements].values = NULL;
+	els[msg->num_elements].num_values = 0;
+	els[msg->num_elements].flags = flags;
+	els[msg->num_elements].name = strdup(attr_name);
+	if (!els[msg->num_elements].name) {
+		return -1;
+	}
+
+	msg->elements = els;
+	msg->num_elements++;
+
+	return 0;
+}
+
+/*
+  add an empty element to a message
+*/
+int ldb_msg_add(struct ldb_message *msg, 
+		const struct ldb_message_element *el, 
+		int flags)
+{
+	if (ldb_msg_add_empty(msg, el->name, flags) != 0) {
+		return -1;
+	}
+
+	msg->elements[msg->num_elements-1] = *el;
+	msg->elements[msg->num_elements-1].flags = flags;
+
+	return 0;
+}
+
+/*
+  compare two ldb_message_element structures
+*/
+int ldb_msg_element_compare(struct ldb_message_element *el1, 
+			    struct ldb_message_element *el2)
+{
+	int i;
+
+	if (el1->num_values != el2->num_values) {
+		return el1->num_values - el2->num_values;
+	}
+
+	for (i=0;i<el1->num_values;i++) {
+		if (!ldb_msg_find_val(el2, &el1->values[i])) {
+			return -1;
+		}
+	}
+
+	return 0;
+}