#include <stdlib.h>
#include <malloc.h>
#include <errno.h>

int posix_memalign(void **res, size_t align, size_t len) {
    if (align < sizeof(void *)) return 22;
    void *mem = memalign(align, len);
    if (!mem) return errno;
    *res = mem;
    return 0;
}

int getentropy(void *buffer, size_t length) {
    for (int i = 0; i < length; i++) {
        ((int*)buffer)[i] = rand();
    }
    return 0;
}