#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termio.h>

main(
	int     argc,
	char    *argv[]
	)
{
	char	eoi=' ';
	struct termio tbuf, tbufsave;

        extern char     *optarg;
        extern int      optind,opterr,optopt;
        int     opcion;
	unsigned char theError=0;

	
        while ( (opcion=getopt(argc,argv,"c:")) != EOF )
        {
                switch(opcion)
                {
                        case 'c':       
                                        eoi = *optarg;
                                        break;


                        default:       theError ++;
                                        break;
                }
        }

        if ( theError != 0 ) 
        {
	fprintf( stderr, "Usage: %s -c end_of_input\n", argv[0]);
	exit(-1);
        }
	
	/*
	 * set raw mode 
	 */

	if( ioctl(0, TCGETA, &tbuf) == -1)
	{
		perror("ioctl 1");
		exit( -1);
	}

	tbufsave = tbuf;
	tbuf.c_iflag &= ~( INLCR | ICRNL | IUCLC | ISTRIP | IXON | BRKINT );
	tbuf.c_oflag &= ~OPOST;
	tbuf.c_lflag &= ~( ICANON | ISIG | ECHO );
	tbuf.c_cc[4] = 0;
	tbuf.c_cc[5] = 1000000;

	if ( ioctl(0,TCSETAF, &tbuf ) == -1 )
	{
		perror("ioctl 2");
		exit( -1);
	}

	/*
	 * cat
	 */

	for( ; putchar(getchar())!=eoi; )
	;

	/*
	 * restore mode 
	 */

	if( ioctl( 0, TCSETAF,&tbufsave) == -1) 
	{
		perror("ioctl 3");
		exit( -1);
	}

	exit( 0 );
}