#include <stdio.h>
#include <stdlib.h>

void someFunction(char ** array, int * arraysize);

int main(int argc, char * argv[])
{
        int arraysize;
        char ** somearray;
        someFunction(somearray, 5);
        printf("%s\n", somearray[0]);           // Results in SEGFAULT ... why?
        return 0;
}

void someFunction(char ** array, int arraysize)
{
        int somebuflen = 20;
        //arraysize = malloc(sizeof(int));
        //(*arraysize) = 5;                       // We determine size here

        array = malloc(arraysize*sizeof(*array)); // sizeof(*array) is the same as sizeof(char **)) in this particular case

        int i;
        for (i = 0; i < arraysize; ++i)
        {
                array[i] = (char *)malloc(somebuflen); // malloc will allocate the amount of bytes, i believe C defines a char as the size of 1 byte
        }
        array[0] = "dummy";
        printf("%s\n", array[0]);               // prints within someFunction
}