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The observer pattern defines a one-to-many dependency, allowing multiple observer objects to listen to a topic object at the same time.Including battery power supply and other power supply partsFigure 1 is an example of a JOP attack. In this example, the attacker's aim is to execute a system call "int 0x80" to open a new command line window. To do this, an attacker needs to modify the contents of the eax register to "0x0000000b" and the ebx register to the string "/bin/sh" before "int 0x80" is called, and the ecx and edx registers must point to the value "0x00000000". Suppose the value "0x0000000" and the string "/bin/sh" can be found in memory when the program is running. An attacker needs to construct the value "0x0000000b" himself. However, for the value "0x0000000b", when an attacker saves data to the stack through a buffer overflow, the "0x00" byte will trigger the system to terminate the read operation. This example specifically describes how the attacker uses the existing code snippet in the program to modify the value of val pushed into the stack by the attacker step by step from "0xffffff0b" to the value required by the system call "0x0000000b", thus implementing JOP attack. The following are the detailed steps of the process.有一次，静遇到了作为家庭餐厅的客人而认识的道永圭一（中岛裕翔饰）在烤肉店被吊起来的场面。明明身上没有现金却点了单，面对一个听不懂话的店主，真是一筹莫展。在影片《禁闭男童》中，因患上未知疾病，一名男童（查理·肖特韦尔饰）必须过与世隔绝的生活，并日渐衰弱。 他的父母（凯利·蕾莉和马克斯·马蒂尼饰 ）在用尽一切办法之后，将儿子的生命托付给一位医生（莉莉·泰勒饰 ）。这位医生在她洁净的房屋设施中试验的前沿治疗也许是男童伊莱最后的希 望。在接受那些可能治愈他的激烈治疗时，伊莱开始感到焦虑不安，他的经历让他自问可以相信谁，这座房子里到底隐藏着什么。Carlos Galindo是一个从墨西哥偷渡到美国的无户籍人士。老婆早已离他而去，如今的他和14岁的儿子Luis Galindo相依为命。儿子在学校因为自己的特殊身份遭受同学的歧视和欺负，但他总是沉默对待父亲的询问，隔阂在两人间越来越深。为了能让自己和儿子过上更好的日子，Carlos努力干活拼命赚钱。他是一个园丁，平日里的工作就是为了各式各样的美国富人修剪草坪。他的老板因为想回国而出售自己的二手卡车和园丁必备工具。希望可以赚更多钱的Carlos找自己的妹妹借了钱买来了人家淘汰的旧卡车和园丁必备的工具。可是有一天，Carlos赖以生存的旧卡车竟然被街区里的小混混Santiago偷走。在焦急中父子俩第一次坦诚相对，恢复以往的亲情。父子俩共同踏上了寻车之路。两人禁不住把那狂妄的家伙一顿臭骂，咒他骑马摔断腿，坐船落了水，上山碰了嘴，总之不得好过，又担心那些街坊，也不知伤了多少人。