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/*
* SCCS: @(#)tccdport.c 1.9 (98/09/01)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1992 X/Open Company 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
/************************************************************************
SCCS: @(#)tccdport.c 1.9 98/09/01 TETware release 3.3
NAME: tccdport.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: April 1992
DESCRIPTION:
function to return TCCD's well-known port number
MODIFICATIONS:
Andrew Dingwall, UniSoft Ltd., July 1998
Changed u_short to unsigned short (u_short is not in UNIX98).
************************************************************************/
#include <errno.h>
#include <sys/types.h>
# include <netinet/in.h>
# include <netdb.h>
#include "dtmac.h"
#include "error.h"
#include "time.h"
#include "dtmsg.h"
#include "ptab.h"
#include "inetlib_in.h"
#ifndef NOTRACE
#include "ltoa.h"
#endif
/*
** tet_gettccdport() - return tccd port number in host byte order
**
** return -1 on error
** (so don't define the tccd port number as > 32767 on 16 bit machines!)
*/
int tet_gettccdport()
{
static int port;
register struct servent *sp;
int err;
if (port)
return(port);
CLEAR_SOCKET_ERRNO;
if ((sp = getservbyname("tcc", "tcp")) == (struct servent *) 0) {
err = SOCKET_ERRNO;
error(err != ENOTTY ? err : 0,
"tcc/tcp: unknown service", (char *) 0);
port = -1;
}
else
port = ntohs((unsigned short) sp->s_port);
endservent();
TRACE2(tet_Tio, 2, "tccd port = %s", tet_i2a(port));
return(port);
}
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