//
// Created by resolution on 20.11.17.
//

#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

#define MAXBUFF 100
int main(int argc, char* argv[])
{
    int fd[2];
    int pid;
    char buffor[] = "pepethefrog.png";
    char out[MAXBUFF];
    int licz;
    if(pipe(fd) == -1 )
    {
        fprintf (stderr, "Nie udalo sie stowrzyc potoku: %s", strerror (errno));
        exit(2);
    }
    if((pid = fork()) == -1)
    {
        fprintf (stderr, "Nie udalo sie sforkowac: %s", strerror (errno));
        exit(1);
    }
    if(pid == 0) // potomek
    {
        write(fd[1], buffor, (strlen(buffor) + 1 ));
        dup2(0, fd[0]);
        //execlp("display", "display", NULL);
        execlp("eog", "eog", NULL);
    }
    else    // rodzic
    {
        close(fd[1]);
        licz  = read(fd[0], out, sizeof(out));
        printf("Mam: %s", out);
        write(1,buffor,licz);
        //execlp("eog", "eog", NULL);
    }
    return 0;
}