/*
 * $Id: tel_iacout.c,v 3.1 1994/05/14 14:17:07 ppessi Exp $
 *
 * Author: Tomi Ollila <too@cs.hut.fi>
 *
 * Copyright © 1993, 1994   AmiTCP/IP Group, <amitcp-group@hut.fi>
 *			    Helsinki University of Technology, Finland.
 *			    All rights reserved.
 *
 * Created: Thu Apr  7 18:18:03 1994 too
 * Last modified: Fri May 13 04:42:56 1994 ppessi
 *
 * HISTORY
 * $Log: tel_iacout.c,v $
 * Revision 3.1  1994/05/14  14:17:07  ppessi
 * initial revision
 *
 * Revision 3.1  1994/04/17  11:31:54  too
 * initial revision
 *
 */

#include "telnet.h"
#include <arpa/telnet.h>
#include "tel_iacout.h"

u_char telnet_iacbuf[36];	/* buffer for negotiation replies */
short  telnet_iaclen;		/* bytes in  buffer above  */

void putiac2(u_char wwdd, u_char c)
{
  if (telnet_iaclen + 3 > sizeof telnet_iacbuf)
    doIacflush();

  telnet_iacbuf[telnet_iaclen++] = IAC;
  telnet_iacbuf[telnet_iaclen++] = wwdd;
  telnet_iacbuf[telnet_iaclen++] = c;
}

void putiac1(u_char c)
{
  if (telnet_iaclen + 2 > sizeof telnet_iacbuf)
    doIacflush();
  
  telnet_iacbuf[telnet_iaclen++] = IAC;
  telnet_iacbuf[telnet_iaclen++] = c;
}

void putiacstring(u_char wwdd, const u_char * str)
{
  size_t len;

  iacflush();

  telnet_iacbuf[telnet_iaclen++] = IAC;
  telnet_iacbuf[telnet_iaclen++] = SB;
  telnet_iacbuf[telnet_iaclen++] = wwdd;
  telnet_iacbuf[telnet_iaclen++] = TELQUAL_IS;

  len = strlen(str);
  if (len <= sizeof telnet_iacbuf - 6) {
    strcpy(telnet_iacbuf + telnet_iaclen, str);
    telnet_iaclen += len;
  } else {
    iacflush();
    send(rsock, str, len, 0);
  }
  telnet_iacbuf[telnet_iaclen++] = IAC;
  telnet_iacbuf[telnet_iaclen++] = SE;
}