/*
 * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
 */
/*  Portions
 *  Copyright (c) 1990 Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  bind.c
 */

#include "portable.h"

#include <stdio.h>
#include <stdlib.h>

#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>

#include "lber.h"
#include "ldap.h"


/*
 * ldap_bind - bind to the ldap server (and X.500).  The dn and password
 * of the entry to which to bind are supplied, along with the authentication
 * method to use.  The msgid of the bind request is returned on success,
 * -1 if there's trouble.  Note, the kerberos support assumes the user already
 * has a valid tgt for now.  ldap_result() should be called to find out the
 * outcome of the bind request.
 *
 * Example:
 *	ldap_bind( ld, "cn=manager, o=university of michigan, c=us", "secret",
 *	    LDAP_AUTH_SIMPLE )
 */

int
ldap_bind( LDAP *ld, char *dn, char *passwd, int authmethod )
{
	/*
	 * The bind request looks like this:
	 *	BindRequest ::= SEQUENCE {
	 *		version		INTEGER,
	 *		name		DistinguishedName,	 -- who
	 *		authentication	CHOICE {
	 *			simple		[0] OCTET STRING -- passwd
#ifdef HAVE_KERBEROS
	 *			krbv42ldap	[1] OCTET STRING
	 *			krbv42dsa	[2] OCTET STRING
#endif
	 *		}
	 *	}
	 * all wrapped up in an LDAPMessage sequence.
	 */

	Debug( LDAP_DEBUG_TRACE, "ldap_bind\n", 0, 0, 0 );

	switch ( authmethod ) {
	case LDAP_AUTH_SIMPLE:
		return( ldap_simple_bind( ld, dn, passwd ) );

#ifdef HAVE_KERBEROS
	case LDAP_AUTH_KRBV41:
		return( ldap_kerberos_bind1( ld, dn ) );

	case LDAP_AUTH_KRBV42:
		return( ldap_kerberos_bind2( ld, dn ) );
#endif

	default:
		ld->ld_errno = LDAP_AUTH_UNKNOWN;
		return( -1 );
	}
}

/*
 * ldap_bind_s - bind to the ldap server (and X.500).  The dn and password
 * of the entry to which to bind are supplied, along with the authentication
 * method to use.  This routine just calls whichever bind routine is
 * appropriate and returns the result of the bind (e.g. LDAP_SUCCESS or
 * some other error indication).  Note, the kerberos support assumes the
 * user already has a valid tgt for now.
 *
 * Examples:
 *	ldap_bind_s( ld, "cn=manager, o=university of michigan, c=us",
 *	    "secret", LDAP_AUTH_SIMPLE )
 *	ldap_bind_s( ld, "cn=manager, o=university of michigan, c=us",
 *	    NULL, LDAP_AUTH_KRBV4 )
 */
int
ldap_bind_s( LDAP *ld, char *dn, char *passwd, int authmethod )
{
	Debug( LDAP_DEBUG_TRACE, "ldap_bind_s\n", 0, 0, 0 );

	switch ( authmethod ) {
	case LDAP_AUTH_SIMPLE:
		return( ldap_simple_bind_s( ld, dn, passwd ) );

#ifdef HAVE_KERBEROS
	case LDAP_AUTH_KRBV4:
		return( ldap_kerberos_bind_s( ld, dn ) );

	case LDAP_AUTH_KRBV41:
		return( ldap_kerberos_bind1_s( ld, dn ) );

	case LDAP_AUTH_KRBV42:
		return( ldap_kerberos_bind2_s( ld, dn ) );
#endif

	default:
		return( ld->ld_errno = LDAP_AUTH_UNKNOWN );
	}
}


#ifdef LDAP_REFERRALS
void
ldap_set_rebind_proc( LDAP *ld, int (*rebindproc)( LDAP *ld, char **dnp,
	char **passwdp, int *authmethodp, int freeit ))
{
	ld->ld_rebindproc = rebindproc;
}
#endif /* LDAP_REFERRALS */
