From 7731832751ab9f3c6ddeb66f186d3d7fa1934a6d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 13:11:40 +0200
Subject: Adding upstream version 2.4.57+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 servers/slapd/back-ldap/modify.c | 136 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 servers/slapd/back-ldap/modify.c

(limited to 'servers/slapd/back-ldap/modify.c')

diff --git a/servers/slapd/back-ldap/modify.c b/servers/slapd/back-ldap/modify.c
new file mode 100644
index 0000000..6cb84d4
--- /dev/null
+++ b/servers/slapd/back-ldap/modify.c
@@ -0,0 +1,136 @@
+/* modify.c - ldap backend modify function */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1999-2021 The OpenLDAP Foundation.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * Portions Copyright 2000-2003 Pierangelo Masarati.
+ * 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>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "back-ldap.h"
+
+int
+ldap_back_modify(
+		Operation	*op,
+		SlapReply	*rs )
+{
+	ldapinfo_t		*li = (ldapinfo_t *)op->o_bd->be_private;
+
+	ldapconn_t		*lc = NULL;
+	LDAPMod			**modv = NULL,
+				*mods = NULL;
+	Modifications		*ml;
+	int			i, j, rc;
+	ber_int_t		msgid;
+	int			isupdate;
+	ldap_back_send_t	retrying = LDAP_BACK_RETRYING;
+	LDAPControl		**ctrls = NULL;
+
+	if ( !ldap_back_dobind( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
+		return rs->sr_err;
+	}
+
+	for ( i = 0, ml = op->orm_modlist; ml; i++, ml = ml->sml_next )
+		/* just count mods */ ;
+
+	modv = (LDAPMod **)ch_malloc( ( i + 1 )*sizeof( LDAPMod * )
+			+ i*sizeof( LDAPMod ) );
+	if ( modv == NULL ) {
+		rc = LDAP_NO_MEMORY;
+		goto cleanup;
+	}
+	mods = (LDAPMod *)&modv[ i + 1 ];
+
+	isupdate = be_shadow_update( op );
+	for ( i = 0, ml = op->orm_modlist; ml; ml = ml->sml_next ) {
+		if ( !isupdate && !get_relax( op ) && ml->sml_desc->ad_type->sat_no_user_mod  )
+		{
+			continue;
+		}
+
+		modv[ i ] = &mods[ i ];
+		mods[ i ].mod_op = ( ml->sml_op | LDAP_MOD_BVALUES );
+		mods[ i ].mod_type = ml->sml_desc->ad_cname.bv_val;
+
+		if ( ml->sml_values != NULL ) {
+			for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
+				/* just count mods */ ;
+			mods[ i ].mod_bvalues =
+				(struct berval **)ch_malloc( ( j + 1 )*sizeof( struct berval * ) );
+			for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
+			{
+				mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
+			}
+			mods[ i ].mod_bvalues[ j ] = NULL;
+
+		} else {
+			mods[ i ].mod_bvalues = NULL;
+		}
+
+		i++;
+	}
+	modv[ i ] = 0;
+
+retry:;
+	ctrls = op->o_ctrls;
+	rc = ldap_back_controls_add( op, rs, lc, &ctrls );
+	if ( rc != LDAP_SUCCESS ) {
+		send_ldap_result( op, rs );
+		goto cleanup;
+	}
+
+	rs->sr_err = ldap_modify_ext( lc->lc_ld, op->o_req_dn.bv_val, modv,
+			ctrls, NULL, &msgid );
+	rc = ldap_back_op_result( lc, op, rs, msgid,
+		li->li_timeout[ SLAP_OP_MODIFY ],
+		( LDAP_BACK_SENDRESULT | retrying ) );
+	if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
+		retrying &= ~LDAP_BACK_RETRYING;
+		if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
+			/* if the identity changed, there might be need to re-authz */
+			(void)ldap_back_controls_free( op, rs, &ctrls );
+			goto retry;
+		}
+	}
+
+	ldap_pvt_thread_mutex_lock( &li->li_counter_mutex );
+	ldap_pvt_mp_add( li->li_ops_completed[ SLAP_OP_MODIFY ], 1 );
+	ldap_pvt_thread_mutex_unlock( &li->li_counter_mutex );
+
+cleanup:;
+	(void)ldap_back_controls_free( op, rs, &ctrls );
+
+	for ( i = 0; modv[ i ]; i++ ) {
+		ch_free( modv[ i ]->mod_bvalues );
+	}
+	ch_free( modv );
+
+	if ( lc != NULL ) {
+		ldap_back_release_conn( li, lc );
+	}
+
+	return rs->sr_err;
+}
+
-- 
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