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/*
* SCCS: @(#)logon.c 1.7 (96/11/04)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1992 X/Open Company Limited
* (C) Copyright 1994 UniSoft Limited
*
* All rights reserved. No part of this source code may be reproduced,
* stored in a retrieval system, or transmitted, in any form or by any
* means, electronic, mechanical, photocopying, recording or otherwise,
* except as stated in the end-user licence agreement, without the prior
* permission of the copyright owners.
*
* X/Open and the 'X' symbol are trademarks of X/Open Company Limited in
* the UK and other countries.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifndef lint
static char sccsid[] = "@(#)logon.c 1.7 (96/11/04) TET3 release 3.3";
#endif
/************************************************************************
SCCS: @(#)logon.c 1.7 96/11/04 TETware release 3.3
NAME: logon.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: April 1992
DESCRIPTION:
function to connect to a server and log on to it
MODIFICATIONS:
Denis McConalogue, UniSoft Limited, September 1993
added ti_disconnect() function.
Andrew Dingwall, UniSoft Ltd., November 1993
enhancements for FIFO transport interface
removed disconnect stuff
************************************************************************/
#include <stdio.h>
#include <sys/types.h>
#include "dtmac.h"
#include "dtmsg.h"
#include "ptab.h"
#include "error.h"
#include "servlib.h"
#include "dtetlib.h"
#include "tslib.h"
#ifdef NEEDsrcFile
static char srcFile[] = __FILE__; /* file name for error reporting */
#endif
/* static function declarations */
static int ti_lo2 PROTOLIST((struct ptab *));
/*
** tet_ti_logon() - connect to a server and log on to it
**
** return zero if successful or -1 on error
*/
int tet_ti_logon(pp)
register struct ptab *pp;
{
register int wantptype = pp->ptr_ptype;
if ((pp->pt_flags & (PF_CONNECTED | PF_LOGGEDON)) == (PF_CONNECTED | PF_LOGGEDON)) {
error(0, "already logged on to", tet_r2a(&pp->pt_rid));
return(-1);
}
pp->pt_flags &= ~PF_LOGGEDON;
/* connect to the server if necessary */
if ((pp->pt_flags & PF_CONNECTED) == 0) {
pp->pt_state = PS_CONNECT;
pp->pt_flags &= ~PF_LOGGEDOFF;
tet_si_servwait(pp, LO_DELAY);
if (!(
pp->pt_state == PS_CONNECT &&
(pp->pt_flags & PF_ATTENTION)
)) {
if (pp->pt_flags & PF_TIMEDOUT) {
pp->pt_flags &= ~PF_TIMEDOUT;
error(0, "connect timed out",
tet_r2a(&pp->pt_rid));
tet_ts_dead(pp);
}
return(-1);
}
}
/* send a logon message and receive a reply */
pp->ptm_req = OP_LOGON;
pp->ptm_mtype = MT_NODATA;
pp->ptm_len = 0;
tet_si_clientloop(pp, LO_DELAY);
/* interpret the return codes */
if (pp->pt_state == PS_DEAD || pp->pt_flags & PF_IOERR)
return(-1);
else if (pp->pt_flags & PF_TIMEDOUT) {
pp->pt_flags &= ~PF_TIMEDOUT;
error(0, "server logon timed out", tet_r2a(&pp->pt_rid));
return(-1);
}
/* store the remid from the reply message */
pp->ptr_sysid = pp->ptm_sysid;
pp->ptr_pid = pp->ptm_pid;
pp->ptr_ptype = pp->ptm_ptype;
pp->pt_flags &= ~PF_LOGGEDOFF;
/* handle the return codes */
switch (pp->ptm_rc) {
case ER_OK:
pp->pt_flags |= PF_LOGGEDON;
break;
case ER_LOGON:
error(0, "server refused logon", tet_r2a(&pp->pt_rid));
break;
case ER_MAGIC:
error(0, "server and client incompatible",
tet_r2a(&pp->pt_rid));
break;
case ER_ERR:
error(0, "server error", tet_r2a(&pp->pt_rid));
break;
default:
error(0, "unexpected server reply code",
tet_ptrepcode(pp->ptm_rc));
break;
}
if (pp->ptr_ptype != wantptype) {
error(0, "wanted to log on to", tet_ptptype(wantptype));
error(0, "but found", tet_r2a(&pp->pt_rid));
if (pp->pt_flags & PF_LOGGEDON)
(void) tet_ti_logoff(pp, 1);
tet_ts_dead(pp);
}
return((pp->pt_flags & PF_LOGGEDON) ? 0 : -1);
}
/*
** tet_ti_logoff() - log off from a server
**
** the connection is left open if stayopen is non-zero,
** otherwise it is closed
**
** return 0 if successful or -1 on error
*/
int tet_ti_logoff(pp, stayopen)
struct ptab *pp;
int stayopen;
{
register int rc;
if (pp->pt_flags & PF_LOGGEDON)
rc = ti_lo2(pp);
else
rc = 0;
pp->pt_flags = (pp->pt_flags & ~PF_LOGGEDON) | PF_LOGGEDOFF;
if (!stayopen)
tet_ts_dead(pp);
return(rc);
}
/*
** ti_lo2() - extend the tet_ti_logoff() processing
**
** return 0 if successful or -1 on error
*/
static int ti_lo2(pp)
register struct ptab *pp;
{
char *errmsg;
/* send a logoff message and receive a reply */
pp->ptm_req = OP_LOGOFF;
pp->ptm_mtype = MT_NODATA;
pp->ptm_len = 0;
tet_si_clientloop(pp, TALK_DELAY);
/* interpret the return codes */
if (pp->pt_state == PS_DEAD || pp->pt_flags & PF_IOERR) {
tet_ts_dead(pp);
return(-1);
}
else if (pp->pt_flags & PF_TIMEDOUT) {
pp->pt_flags &= ~PF_TIMEDOUT;
error(0, "server logoff timed out", tet_r2a(&pp->pt_rid));
return(-1);
}
else {
switch (pp->ptm_rc) {
case ER_OK:
return(0);
case ER_ERR:
errmsg = "server error";
break;
default:
error(0, "unexpected server reply code",
tet_ptrepcode(pp->ptm_rc));
return(-1);
}
}
error(0, errmsg, tet_r2a(&pp->pt_rid));
return(-1);
}
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