Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 197 insertions, 0 deletions

diff --git a/libraries/libldap/compare.c b/libraries/libldap/compare.c
new file mode 100644
index 0000000..9ff4f87
--- /dev/null
+++ b/libraries/libldap/compare.c
@@ -0,0 +1,197 @@
+/* $OpenLDAP$ */
+/* 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>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "ldap-int.h"
+#include "ldap_log.h"
+
+/* The compare request looks like this:
+ *	CompareRequest ::= SEQUENCE {
+ *		entry	DistinguishedName,
+ *		ava	SEQUENCE {
+ *			type	AttributeType,
+ *			value	AttributeValue
+ *		}
+ *	}
+ */
+
+BerElement *
+ldap_build_compare_req(
+	LDAP *ld,
+	LDAP_CONST char *dn,
+	LDAP_CONST char *attr,
+	struct berval *bvalue,
+	LDAPControl **sctrls,
+	LDAPControl **cctrls,
+	int	*msgidp )
+{
+	BerElement	*ber;
+	int rc;
+
+	/* create a message to send */
+	if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
+		return( NULL );
+	}
+
+	LDAP_NEXT_MSGID(ld, *msgidp);
+	rc = ber_printf( ber, "{it{s{sON}N}", /* '}' */
+		*msgidp,
+		LDAP_REQ_COMPARE, dn, attr, bvalue );
+	if ( rc == -1 )
+	{
+		ld->ld_errno = LDAP_ENCODING_ERROR;
+		ber_free( ber, 1 );
+		return( NULL );
+	}
+
+	/* Put Server Controls */
+	if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) {
+		ber_free( ber, 1 );
+		return( NULL );
+	}
+
+	if( ber_printf( ber, /*{*/ "N}" ) == -1 ) {
+		ld->ld_errno = LDAP_ENCODING_ERROR;
+		ber_free( ber, 1 );
+		return( NULL );
+	}
+
+	return( ber );
+}
+
+/*
+ * ldap_compare_ext - perform an ldap extended compare operation.  The dn
+ * of the entry to compare to and the attribute and value to compare (in
+ * attr and value) are supplied.  The msgid of the response is returned.
+ *
+ * Example:
+ *	struct berval bvalue = { "secret", sizeof("secret")-1 };
+ *	rc = ldap_compare( ld, "c=us@cn=bob",
+ *		"userPassword", &bvalue,
+ *		sctrl, cctrl, &msgid )
+ */
+int
+ldap_compare_ext(
+	LDAP *ld,
+	LDAP_CONST char *dn,
+	LDAP_CONST char *attr,
+	struct berval *bvalue,
+	LDAPControl **sctrls,
+	LDAPControl **cctrls,
+	int	*msgidp )
+{
+	int rc;
+	BerElement	*ber;
+	ber_int_t	id;
+
+	Debug( LDAP_DEBUG_TRACE, "ldap_compare\n", 0, 0, 0 );
+
+	assert( ld != NULL );
+	assert( LDAP_VALID( ld ) );
+	assert( dn != NULL );
+	assert( attr != NULL );
+	assert( msgidp != NULL );
+
+	/* check client controls */
+	rc = ldap_int_client_controls( ld, cctrls );
+	if( rc != LDAP_SUCCESS ) return rc;
+
+	ber = ldap_build_compare_req(
+		ld, dn, attr, bvalue, sctrls, cctrls, &id );
+	if( !ber )
+		return ld->ld_errno;
+
+	/* send the message */
+	*msgidp = ldap_send_initial_request( ld, LDAP_REQ_COMPARE, dn, ber, id );
+	return ( *msgidp < 0 ? ld->ld_errno : LDAP_SUCCESS );
+}
+
+/*
+ * ldap_compare_ext - perform an ldap extended compare operation.  The dn
+ * of the entry to compare to and the attribute and value to compare (in
+ * attr and value) are supplied.  The msgid of the response is returned.
+ *
+ * Example:
+ *	msgid = ldap_compare( ld, "c=us@cn=bob", "userPassword", "secret" )
+ */
+int
+ldap_compare(
+	LDAP *ld,
+	LDAP_CONST char *dn,
+	LDAP_CONST char *attr,
+	LDAP_CONST char *value )
+{
+	int msgid;
+	struct berval bvalue;
+
+	assert( value != NULL );
+
+	bvalue.bv_val = (char *) value;
+	bvalue.bv_len = (value == NULL) ? 0 : strlen( value );
+
+	return ldap_compare_ext( ld, dn, attr, &bvalue, NULL, NULL, &msgid ) == LDAP_SUCCESS
+		? msgid : -1;
+}
+
+int
+ldap_compare_ext_s(
+	LDAP *ld,
+	LDAP_CONST char *dn,
+	LDAP_CONST char *attr,
+	struct berval *bvalue,
+	LDAPControl **sctrl,
+	LDAPControl **cctrl )
+{
+	int		rc;
+	int		msgid;
+	LDAPMessage	*res;
+
+	rc = ldap_compare_ext( ld, dn, attr, bvalue, sctrl, cctrl, &msgid );
+
+	if (  rc != LDAP_SUCCESS )
+		return( rc );
+
+	if ( ldap_result( ld, msgid, LDAP_MSG_ALL, (struct timeval *) NULL, &res ) == -1 || !res )
+		return( ld->ld_errno );
+
+	return( ldap_result2error( ld, res, 1 ) );
+}
+
+int
+ldap_compare_s(
+	LDAP *ld,
+	LDAP_CONST char *dn,
+	LDAP_CONST char *attr,
+	LDAP_CONST char *value )
+{
+	struct berval bvalue;
+
+	assert( value != NULL );
+
+	bvalue.bv_val = (char *) value;
+	bvalue.bv_len = (value == NULL) ? 0 : strlen( value );
+
+	return ldap_compare_ext_s( ld, dn, attr, &bvalue, NULL, NULL );
+}