1 files changed, 100 insertions, 0 deletions
diff --git a/libraries/libldap/assertion.c b/libraries/libldap/assertion.c
new file mode 100644
index 0000000..d888d79
--- /dev/null
+++ b/libraries/libldap/assertion.c
@@ -0,0 +1,100 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/stdlib.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "ldap-int.h"
+
+int
+ldap_create_assertion_control_value(
+	LDAP		*ld,
+	char		*assertion,
+	struct berval	*value )
+{
+	BerElement		*ber = NULL;
+	int			err;
+
+	ld->ld_errno = LDAP_SUCCESS;
+
+	if ( assertion == NULL || assertion[ 0 ] == '\0' ) {
+		ld->ld_errno = LDAP_PARAM_ERROR;
+		return ld->ld_errno;
+	}
+
+	if ( value == NULL ) {
+		ld->ld_errno = LDAP_PARAM_ERROR;
+		return ld->ld_errno;
+	}
+
+	BER_BVZERO( value );
+
+	ber = ldap_alloc_ber_with_options( ld );
+	if ( ber == NULL ) {
+		ld->ld_errno = LDAP_NO_MEMORY;
+		return ld->ld_errno;
+	}
+
+	err = ldap_pvt_put_filter( ber, assertion );
+	if ( err < 0 ) {
+		ld->ld_errno = LDAP_ENCODING_ERROR;
+		goto done;
+	}
+
+	err = ber_flatten2( ber, value, 1 );
+	if ( err < 0 ) {
+		ld->ld_errno = LDAP_NO_MEMORY;
+		goto done;
+	}
+
+done:;
+	if ( ber != NULL ) {
+		ber_free( ber, 1 );
+	}
+
+	return ld->ld_errno;
+}
+
+int
+ldap_create_assertion_control(
+	LDAP		*ld,
+	char		*assertion,
+	int		iscritical,
+	LDAPControl	**ctrlp )
+{
+	struct berval	value;
+
+	if ( ctrlp == NULL ) {
+		ld->ld_errno = LDAP_PARAM_ERROR;
+		return ld->ld_errno;
+	}
+
+	ld->ld_errno = ldap_create_assertion_control_value( ld,
+		assertion, &value );
+	if ( ld->ld_errno == LDAP_SUCCESS ) {
+		ld->ld_errno = ldap_control_create( LDAP_CONTROL_ASSERT,
+			iscritical, &value, 0, ctrlp );
+		if ( ld->ld_errno != LDAP_SUCCESS ) {
+			LDAP_FREE( value.bv_val );
+		}
+	}
+
+	return ld->ld_errno;
+}
+