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

int main(int argc, char **argv){

  int file;
  int count;
  char * buf;
  int pid;
  int tube[2];
  int status;

  buf = malloc(1024);

  if(argc != 2){
    fprintf(stderr,"Bad arguments number\n Usage : %s [filename]\n",argv[0]);
    exit(EXIT_FAILURE);
  }
    
  file = open(argv[1], O_RDONLY);


  if(file <= 0){
    fprintf(stderr,"File does not exists\n");
    exit(EXIT_FAILURE);
  }

  /* create pipe */
  pipe(tube);

  switch(pid = fork()){
  case -1 :
    fprintf(stderr,"Error\n");
  case 0 :
    close(tube[1]);
    
    dup2(STDOUT_FILENO,tube[0]);
 
    
    /* execle("/usr/bin/mplayer","-"); */

    close(tube[0]);
    
  default : 
    /* Playing the file */
    close(tube[0]);
    
    while((count = read(file, buf, 1024)) != 0){
      write(tube[1], buf, count);
    }
    
    close(tube[1]);
    close(file);

    waitpid(pid, &status, 0);

    if(!WIFEXITED(status))
      exit(EXIT_FAILURE);

    exit(EXIT_SUCCESS);

  }

}