/*
 *
 * Portions Copyright 1998 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 *
 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*
 *  Copyright (c) 1993 Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  sbind.c
 */

#ifndef lint 
static char copyright[] = "@(#) Copyright (c) 1993 Regents of the University of Michigan.\nAll rights reserved.\n";
#endif

#include <stdio.h>
#include <string.h>

#ifdef MACOS
#include "macos.h"
#endif /* MACOS */

#if !defined( MACOS ) && !defined( DOS )
#include <sys/types.h>
#include <sys/socket.h>
#endif

#include "lber.h"
#include "ldap.h"
#include "ldap-private.h"
#include "ldap-int.h"

BerElement * ldap_build_simple_bind_req(LDAP *ld, char *dn, char *passwd, LDAPControl **serverctrls)
{
	/*
	 * The bind request looks like this:
	 *	BindRequest ::= SEQUENCE {
	 *		version		INTEGER,
	 *		name		DistinguishedName,	 -- who
	 *		authentication	CHOICE {
	 *			simple		[0] OCTET STRING -- passwd
	 *		}
	 *	}
	 * all wrapped up in an LDAPMessage sequence.
	 */

	BerElement *ber = NULL;

	if ( dn == NULL )
		dn = "";
	if ( passwd == NULL )
		passwd = "";

	if ( (ber = alloc_ber_with_options( ld )) == NULLBER ) {
		return (NULLBER);
	}
	
	/* fill it in */
	if ( ber_printf( ber, "{it{ists}", ++ld->ld_msgid, LDAP_REQ_BIND, ld->ld_version, dn, LDAP_AUTH_SIMPLE, passwd ) == -1 ) {
		ld->ld_errno = LDAP_ENCODING_ERROR;
		ber_free( ber, 1 );
		return( NULLBER );
	}

	/* LDAPv3 */
	/* Code controls if any */
	if (serverctrls && serverctrls[0]) {
		if (ldap_controls_code(ber, serverctrls) != LDAP_SUCCESS){
			ld->ld_errno = LDAP_ENCODING_ERROR;
			ber_free( ber, 1 );
			return( NULLBER );
		}
	} else if (ld->ld_srvctrls && ld->ld_srvctrls[0]) {
		/* Otherwise, is there any global server ctrls ? */
		if (ldap_controls_code(ber, ld->ld_srvctrls) != LDAP_SUCCESS){
			ld->ld_errno = LDAP_ENCODING_ERROR;
			ber_free( ber, 1 );
			return( NULLBER );
		}
	}

	if ( ber_printf( ber, "}" ) == -1 ) {
		ld->ld_errno = LDAP_ENCODING_ERROR;
		ber_free( ber, 1 );
		return( NULLBER );
	}

	return (ber);
}

/*
 * ldap_simple_bind - bind to the ldap server (and X.500).  The dn and
 * password of the entry to which to bind are supplied.  The message id
 * of the request initiated is returned.
 *
 * Example:
 *	ldap_simple_bind( ld, "cn=manager, o=university of michigan, c=us",
 *	    "secret" )
 */

int
ldap_simple_bind( LDAP *ld, char *dn, char *passwd )
{
	BerElement	*ber;
	int rv;
	

#ifdef _REENTRANT
	LOCK_LDAP(ld);
#endif
	Debug( LDAP_DEBUG_TRACE, catgets(slapdcat, 1, 240, "ldap_simple_bind\n"), 0, 0, 0 );
	
	if ( dn == NULL )
		dn = "";
	if ( passwd == NULL )
		passwd = "";

	/* create a message to send */
	if ( (ber = ldap_build_simple_bind_req( ld, dn, passwd, NULL )) == NULLBER ) {
#ifdef _REENTRANT
		UNLOCK_LDAP(ld);
#endif
		return( -1 );
	}

#ifndef NO_CACHE
	if ( ld->ld_cache != NULL ) {
		ldap_flush_cache( ld );
	}
#endif /* !NO_CACHE */

	/* send the message */
	rv = send_initial_request( ld, LDAP_REQ_BIND, dn, ber );
#ifdef _REENTRANT
	UNLOCK_LDAP(ld);
#endif
	return ( rv );
}

/*
 * ldap_simple_bind - bind to the ldap server (and X.500) using simple
 * authentication.  The dn and password of the entry to which to bind are
 * supplied.  LDAP_SUCCESS is returned upon success, the ldap error code
 * otherwise.
 *
 * Example:
 *	ldap_simple_bind_s( ld, "cn=manager, o=university of michigan, c=us",
 *	    "secret" )
 */

int
ldap_simple_bind_s( LDAP *ld, char *dn, char *passwd )
{
	int		msgid;
	LDAPMessage	*result;

	Debug( LDAP_DEBUG_TRACE, catgets(slapdcat, 1, 241, "ldap_simple_bind_s\n"), 0, 0, 0 );

	if ( (msgid = ldap_simple_bind( ld, dn, passwd )) == -1 )
		return( ld->ld_errno );

	if ( ldap_result( ld, msgid, 1, (struct timeval *) 0, &result ) == -1 )
		return( ld->ld_errno );	/* ldap_result sets ld_errno */

	return( ldap_result2error( ld, result, 1 ) );
}