gistfile1.txt

    char** names = (char**)malloc(z_alloc * sizeof(char*));
    int num = 0;
    for (; num < z_size - 1; num++) {
        // here i am just duplicating the string
        // but names[num] should be " - " + zips[num]
        // everything i tried provokes an overflow error
        names[num] = strdup(zips[num]);
    }
    names[z_size] = NULL;