/*****************************************************************************
 *
 * $Id$
 * Purpose ...............: Fidonet mailer - awnser a call
 *
 *****************************************************************************
 * Copyright (C) 1997-2002
 *   
 * Michiel Broek		FIDO:	2:280/2802
 * Beekmansbos 10
 * 1971 BV IJmuiden
 * the Netherlands
 *
 * This file is part of MBSE BBS.
 *
 * This BBS is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * MBSE BBS is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with MBSE BBS; see the file COPYING.  If not, write to the Free
 * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *****************************************************************************/

#include "../config.h"
#include "../lib/libs.h"
#include "../lib/structs.h"
#include "../lib/users.h"
#include "../lib/records.h"
#include "../lib/common.h"
#include "../lib/nodelist.h"
#include "../lib/clcomm.h"
#include "../lib/dbnode.h"
#include "../lib/mberrors.h"
#include "lutil.h"
#include "session.h"
#include "config.h"
#include "answer.h"
#include "openport.h"
#include "portsel.h"
#include "dial.h"
#include "rdoptions.h"
#include "mbcico.h"


extern int		carrier, online;
extern time_t		c_start, c_end;
extern unsigned long    sentbytes;
extern unsigned long    rcvdbytes;
extern int		Loaded;

int answer(char *stype)
{
    int	    st, rc;
    char    *p, *q;
    FILE    *fp;

    /*
     *  mgetty set's the environment variable CONNECT and CALLER_ID,
     *  so if they are present, we might as well make log entries.
     */
    if ((q = getenv("CONNECT")) != NULL)
	Syslog('+', "CONNECT %s", q);
    if ((q = getenv("CALLER_ID")) != NULL)
	if (strncmp(q, "none", 4))
	    Syslog('+', "CALLER  %s", q);

    /*
     *  Incoming calls from modem/ISDN lines do have a tty.
     *  Network calls don't have a tty attached.
     */
    carrier = TRUE;
    p = ttyname(0);
    if (p) {
	q = strrchr(ttyname(0), '/');
	if (q)
	    p = q + 1;
	strncpy(history.tty, p, 6);
	if (load_port(p))
	    Syslog('d', "Port %s, modem %s", ttyinfo.tty, modem.modem);
	else
	    Syslog('d', "Port and modem not loaded!");
    }

    if ((nlent = getnlent(NULL)) == NULL) {
	WriteError("could not get dummy nodelist entry");
	return MBERR_NODE_NOT_IN_LIST;
    }

    c_start = time(NULL);
    rdoptions(FALSE);

    if (inbound)
	free(inbound);
    inbound = xstrcpy(CFG.inbound); /* slave session is unsecure by default */

    if (stype == NULL) {
	st=SESSION_UNKNOWN;
    } else if (strcmp(stype,"tsync") == 0) {
	st=SESSION_FTSC;
	IsDoing("Answer ftsc");
    } else if (strcmp(stype,"yoohoo") == 0) {
	st=SESSION_YOOHOO;
	IsDoing("Answer yoohoo");
    } else if (strncmp(stype,"**EMSI_",7) == 0) {
	st=SESSION_EMSI;
	IsDoing("Answer EMSI");
    } else if (strncmp(stype,"ibn",3) == 0) {
	st=SESSION_BINKP;
	IsDoing("Answer binkp");
    } else {
	st=SESSION_UNKNOWN;
	IsDoing("Answer unknown");
    }

    if ((rc = rawport()) != 0)
	WriteError("Unable to set raw mode");
    else {
	nolocalport();
	rc = session(NULL,NULL,SESSION_SLAVE,st,stype);
    }

    cookedport();
    if (p) {
	/*
	 *  Hangup will write the history record.
	 */
	hangup();
    } else {
	/*
	 *  Network call, write history record.
	 */
	c_end = time(NULL);
	online += (c_end - c_start);

	history.online  = c_start;
	history.offline = c_end;
	history.sent_bytes = sentbytes;
	history.rcvd_bytes = rcvdbytes;
	history.inbound = TRUE;

	p = calloc(PATH_MAX, sizeof(char));
	sprintf(p, "%s/var/mailer.hist", getenv("MBSE_ROOT"));
	if ((fp = fopen(p, "a")) == NULL)
	    WriteError("$Can't open %s", p);
	else {
	    fwrite(&history, sizeof(history), 1, fp);
	    fclose(fp);
	}
	free(p);
	
	if (Loaded) {
	    nodes.LastDate = time(NULL);
	    UpdateNode();
	}
    }
    return rc;
}