我的-s -R不起作用

Question

在C中实现了我的ls -R问题。当我使用命令运行程序时./myls -R无显示，全部为空白:(需要帮助。

int print_Recursive(char *dirname)

{
char fbuf [256];
DIR *dir;
struct dirent *dirp;
struct stat sbuf;

printf("\n");
dir = opendir(dirname);

while ((dirp = readdir(dir)))
{
    if(strcmp(dirp->d_name, ".") != 0 &&
       strcmp(dirp->d_name, "..") != 0)
    {
        sprintf(fbuf, "%s/%s", dirname, dirp->d_name);

    }
}
closedir(dir);


return 0;
}


int print_file(char *file, char *dir, struct stat buf, int showinode, int showlong, int showRec)
{
if (showinode)
    printf("%lld ", buf.st_ino);

if (showlong)
    print_long(file, dir, buf);

if (showRec)
    print_Recursive(dir);
else
    printf("%s\n", file);

return 0;
}

无法弄清楚我做错了什么：（