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/*
* xtel - Emulateur MINITEL sous X11
*
* Copyright (C) 1991-1996 Lectra Systemes & Pierre Ficheux
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
static char rcsid[] = "$Id: ian.c,v 1.2 1998/10/02 15:03:46 pierre Exp $";
/*
* Support IAN (Eric Delaunay, delaunay@lix.polytechnique.fr)
*/
#include <stdio.h>
#include "demon.h"
#include "globald.h"
struct ian {
char *service; /* numro de tlphone du service */
char *garde; /* code mis avant la page de garde Teletel */
char *entree1; /* code mis lors de l'entre dans le service */
char *entree2; /* autre possibilit */
};
static struct ian IAN[] = {
{ "3612", "\033 0", "\033!\001\0010", "\033\"0" },
{ "3613", "\033 !0", "\033!\001\0010", "\033\"0" },
{ "3614", "\033 \"0", "\033!\001\0010", "\033\"0" },
{ "3615", "\033 #0", "\033!\001\0010", "\033\"0" },
{ "3616", "\033 $0", "\033!\001\0010", "\033\"0" },
{ "3617", "\033 %0", "\033!\001\0010", "\033\"0" },
{ "3618", "\033 &0", "\033!\001\0010", "\033\"0" },
{ "3619", "\033 '0", "\033!\001\0010", "\033\"0" },
{ "3621", "service:\021", "tablie", "LIB" }
};
static int ian_courant;
static char *ian_ptr1, *ian_ptr2;
int ian_n1, ian_n2;
/*
* initialise la dtction des IAN
*/
void ian_init( telno )
char *telno;
{
int i;
ian_courant = -1;
for( i = 0 ; i < sizeof(IAN)/sizeof(IAN[0]) ; i++ ) {
if (!strcmp( IAN[i].service, telno )) {
ian_courant = i;
ian_ptr1 = ian_ptr2 = NULL;
#ifdef DEBUG_XTELD
log_debug( "Prt pour dtection des IAN (service %s)", IAN[i].service );
#endif
break;
}
}
#ifdef DEBUG_XTELD
if (ian_courant < 0)
log_debug( "IAN non dtermin pour le numro : %s", telno );
#endif
}
/*
* dtection des IAN
*/
int ian_valide( type_ian, c )
int type_ian;
char c;
{
if (ian_courant < 0)
return 1;
if (!ian_ptr1) {
switch (type_ian) {
case IAN_DE_GARDE:
case IAN_DE_FIN:
#ifdef DEBUG_XTELD
log_debug( "attente IAN de garde [%d]", IAN_DE_GARDE );
#endif
ian_ptr1 = IAN[ian_courant].garde;
ian_n1 = 0;
ian_ptr2 = NULL;
ian_n2 = 0;
break;
case IAN_D_ENTREE:
#ifdef DEBUG_XTELD
log_debug( "attente IAN d'entre [%d]", IAN_D_ENTREE );
#endif
ian_ptr1 = IAN[ian_courant].entree1;
ian_n1 = 0;
ian_ptr2 = IAN[ian_courant].entree2;
ian_n2 = 0;
break;
default:
log_err ("attente IAN inconnu !");
return 1; /* retourne IAN valide pour dconnecter le modem */
}
}
if (ian_ptr1[ian_n1] == c || ian_ptr1[ian_n1] == '\001') {
if (ian_ptr1[++ian_n1] == 0) {
#ifdef DEBUG_XTELD
log_debug( "IAN ptr1 reu" );
#endif
ian_ptr1 = ian_ptr2 = NULL;
return 1; /* IAN dtect */
}
}
else
ian_n1 = 0; /* caractre faux : on recommence au dbut de la chane */
if (ian_ptr2) {
if (ian_ptr2[ian_n2] == c || ian_ptr2[ian_n2] == '\001') {
if (ian_ptr2[++ian_n2] == 0) {
#ifdef DEBUG_XTELD
log_debug( "IAN ptr1 reu" );
#endif
ian_ptr1 = ian_ptr2 = NULL;
return 2; /* IAN dtect */
}
}
else
ian_n2 = 0; /* caractre faux : on recommence au dbut de la chane */
}
return 0; /* IAN pas trouv */
}
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