pipe_duplex2.c

/*
 * Author: - @d1cor - juncotic.com
 * Date: 07/jun/2017
 */

#include<stdio.h>
#include<unistd.h>
#include<wait.h>

#define BUF_SIZE 1024

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

    int p_h[2];
    int h_p[2];
    char buf[BUF_SIZE];
    pipe(p_h);
    pipe(h_p);

    if(!fork()){
        close(p_h[1]);
        close(h_p[0]);
        int count = read(p_h[0],buf,BUF_SIZE);
        *(buf+count)='\0';
        printf("Hijo R:%s\n",buf);

        write(h_p[1],"hijo listo",10);

        close(p_h[0]);
        close(h_p[1]);
        _exit(0);

    }
    close(p_h[0]);
    close(h_p[1]);

    write(p_h[1],"padre enviando",14);
    int count = read(h_p[0],buf,BUF_SIZE);
    *(buf+count)='\0';
    printf("Padre R:%s\n",buf);
    close(h_p[0]);
    close(p_h[1]);

    return 0;
}