/*********************************************************
 *
 *	pipe.c
 *
 *	4/15/04 Jeff Ondich
 *
 *********************************************************/

#include	<stdio.h>
#include	<stdlib.h>
#include	<unistd.h>
#include	<sys/types.h>
#include	<sys/stat.h>
#include	<fcntl.h>
#include	<ctype.h>

int main()
{
	int		pid;
    int     fd[2];
	
	
    if( pipe( fd ) < 0 )
    {
        perror( "Trouble creating pipe.\n" );
        exit( 1 );
    }

    pid = fork();
    if( pid < 0 )
    {
        perror( "Trouble forking.\n" );
        exit( 1 );
    }


    if( pid != 0 )
    {
        close( fd[0] );
        if( dup2( fd[1], STDOUT_FILENO ) == -1 )
            perror( "Trouble redirecting stdout." );
        close( fd[1] );

        execlp( "cat", "cat", "moose.txt", NULL );
        perror( "We shouldn't get here." );
    }
    else
    {
        close( fd[1] );
        if( dup2( fd[0], STDIN_FILENO ) == -1 )
            perror( "Trouble redirecting stdin." );
        close( fd[0] );

        execlp( "wc", "wc", NULL );
        perror( "Shouldn't get here." );
    }

	return 0;
}