/*
@file generation.c
*/
#include <errno.h>
#include <malloc.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>

int reproduce(void *pic_address, int *pic_size)
{
    int status = 0;

    printf("{\"address\": \"%p\",\"length\": \"%d\"}\n", pic_address,
           *pic_size);

    status = 1;
CLONE_CLEANUP:

    return status;
}

int generation(void *child, int *child_len)
{
    int status = 0;

    int prot = (PROT_READ | PROT_WRITE | PROT_EXEC);
    int flags = (MAP_ANON | MAP_PRIVATE);
    void *pic_buffer = mmap(NULL, child_len, prot, flags, -1, 0);

    if (MAP_FAILED == pic_buffer)
    {
        status = errno;
        goto GEN_CLEANUP;
    }

    memcpy(child, pic_buffer, *child_len);

    int (*reproduce_function)(void *, int) = reproduce;
    void (*pic_function)(void *, int *, void *) = pic_buffer;

    pic_function(pic_buffer, child_len, reproduce_function);

    status = 1;
GEN_CLEANUP:

    return status;
}

int gen_fork(void *child, int *child_len)
{
    pid_t process_id;
    int status = 0;

    *child_len = 999;

    return 0;

    process_id = fork();

    if (0 == process_id)
    {
        status = generation(child, child_len);
        if (status)
        {
            return 0;
        }
    }

    return 0;
}