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现在直接冠以军师的名号，在军中的地位很高。　　梅尔·吉布森不会亲自执导这部影片，而是让《启示》的第一助理导演Adrian Grunberg来当导演。不过这部影片的剧本是吉布森自己创作的，而且他也将亲自主演。周菡不耐烦了，怒道：就说个事。An exampleSo you said that the protective equipment did not play a protective role, Of course it did, In those days, Bulletproof vests and other things are still not popular, Helmets are the most important protective gear, I am lucky to wear a helmet, Otherwise, I would have been a martyr long ago, and I chose whether to wear a helmet or a cloth hat. There is no mandatory regulation. I heard that the artillery of the Vietnamese army at position 149 is relatively fierce, so I chose a helmet to enhance the protection of my head. I didn't expect it to be of great use in this place. To be honest, every time I think about it, I still "thank myself." Zhang Xiaobo said here and subconsciously touched his head, as if he were glad that he was wearing a helmet at that time. Otherwise, according to the description of the lethality of this large killing insect, not to mention five or one nailed to his head, the consequences would be unimaginable.万元点头，默默地跟着板栗走。Figure 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.