void getLSTF(char * path, int socket, char * finalString){
    DIR *dir;
    struct dirent *ent;

    if ((dir = opendir (path)) != NULL) {
        /* print all the files and directories within directory */
        while ((ent = readdir (dir)) != NULL) {
            char filename[PATH_MAX];
            snprintf(filename, sizeof(filename), "%s/%s", path, ent->d_name);
            struct stat st;
            if(stat(filename, &st) == 0 && S_ISREG(st.st_mode))
                pos += sprintf(&finalString[pos], "%s\n", ent->d_name);
        }

        closedir (dir);
    } else {
        /* could not open directory */
        perror (path);
    }
}

void getLists(char * path, int socket, bool recursive){
    pos = 0;
    char finalString[PATH_MAX];

    if (recursive == true) {
        getLSTR(path, socket, &finalString);
        write(socket, finalString, pos);
    }
    else {
        getLSTF(path, socket, &finalString);
        write(socket , finalString, pos);
    }
    sprintf(&finalString[pos], '\0');

}

/* stampa su stind la lista dei file regolari della cartella in input e delle  sue sottocartelle */

void getLSTR(const char * name, int socket, char * finalString){
    DIR *dir;
    struct dirent *entry;

    if (!(dir = opendir(name)))
        return;

    while ((entry = readdir(dir)) != NULL) {
        if (entry->d_type == DT_DIR) {
            char path[1024];
            if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
                continue;
            snprintf(path, sizeof(path), "%s/%s", name, entry->d_name);
            getLSTR(path, socket, finalString);
        } else {
            //printf("pos: %d file: - %s\n", pos, entry->d_name);
            pos += sprintf(&finalString[pos], "- %s\n", entry->d_name);
        }
    }

    closedir(dir);
}