/* 
 * Scheme48/scsh terminal control interface.
 * Routines that require custom C support.
 * Copyright (c) 1995 by Brian D. Carlstrom
 */

#include "cstuff.h"
#include <termios.h>
#include <memory.h>

int scheme_tcgetattr(int fd,
		     char control_chars[NCCS],
		     int *iflag_hi8, int *iflag_lo24,
		     int *oflag_hi8, int *oflag_lo24,
		     int *cflag_hi8, int *cflag_lo24,
		     int *lflag_hi8, int *lflag_lo24,
		     int *ispeed,    int *ospeed)
{
  struct termios t;
  int result=tcgetattr(fd,&t);
  
  if (result == -1)
    return result;
  
  memcpy(control_chars,t.c_cc,NCCS);
  *iflag_hi8 =t.c_iflag >> 24; *iflag_lo24=t.c_iflag & 0xffffff;
  *oflag_hi8 =t.c_oflag >> 24; *oflag_lo24=t.c_oflag & 0xffffff;
  *cflag_hi8 =t.c_cflag >> 24; *cflag_lo24=t.c_cflag & 0xffffff;
  *lflag_hi8 =t.c_lflag >> 24; *lflag_lo24=t.c_lflag & 0xffffff;
  *ispeed=cfgetispeed(&t);
  *ospeed=cfgetospeed(&t);
  return result;
}

int scheme_tcsetattr(int fd,
		     int option,
		     int iflag_hi8, int iflag_lo24,
		     int oflag_hi8, int oflag_lo24,
		     int cflag_hi8, int cflag_lo24,
		     int lflag_hi8, int lflag_lo24,
		     char *control_chars,
		     int ispeed,    int ospeed)
{
  struct termios t;

  memcpy(t.c_cc,control_chars,NCCS);
  t.c_iflag = (iflag_hi8 << 24) | iflag_lo24;
  t.c_oflag = (oflag_hi8 << 24) | oflag_lo24;
  t.c_cflag = (cflag_hi8 << 24) | cflag_lo24;
  t.c_lflag = (lflag_hi8 << 24) | lflag_lo24;
  cfsetispeed(&t, ispeed);
  cfsetospeed(&t, ospeed);

  return(tcsetattr(fd,option,&t));
}