转自：

int (struct *, , char *, unsigned long ) { old_fs; = ; int ; old_fs = (); (()); /* The cast to a user pointer is valid due to the set_fs() */ = (, (void *), , &); (old_fs); return ; }

();

本文转自张昺华-sky博客园博客，原文链接：http://www.cnblogs.com/sky-heaven/p/5549360.html，如需转载请自行联系原作者