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IEXPLORER BHO插件
iexplorer BHO plugin
- 2022-10-10 07:50:04下载
- 积分:1
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计算校验和
校验和算法描述:为保证网络上传输的数据的可靠性,在许多协议中都设置了校验和项,例如:IPv4、ICMPv4、IGMPV4、ICMPv6、UDP...
计算校验和
校验和算法描述:为保证网络上传输的数据的可靠性,在许多协议中都设置了校验和项,例如:IPv4、ICMPv4、IGMPV4、ICMPv6、UDP和TCP 等等。计算这些校验和的算法称为网际校验和算法,简单来说就是:把被校验的数据16位进行累加,然后取反码,若数据字节长度为奇数,则数据尾部补一个字节的0以凑成偶数。
由于从输入文件读入的数据不能直接满足计算校验和的条件,所以首先对从文件读入缓冲区的数据进行预处理,即读入缓冲区时忽略空格。由于累加是按16位进行的,所以每次从缓冲区中读出4个字符,并将字符转换成对应的16进制数字,如此依次累加,直至数据全部读完。
还有一种情况,即如果数据长度为奇数个字节,则需要判断,并补0累加。程序中利用的是缓冲区长度计数器i和当前读取到计数器j判断数据长度是否为奇数。即如果数据长度为偶数,则读完数据时当前读取到计数器j的值应与缓冲区长度i相等,而如果数据长度为奇数,则读完数据时,当前读取到计数器j>缓冲区长度i,此时需将缓冲区中剩余的两个字符读出,并补0,转换成相应16进制数以后参与累加。
当累加结束后,将累加和的16位以上数据位移下再进行一次累加,并对最后累加和取反即得所求校验和。
-calculated checksum checksum algorithm Description : To ensure the network transmission of data reliability, in many of the agreements are set up and calibration, for example : IPv4, ICMPv4, IGMPV4, ICMPv6. UDP and TCP so on. Calculating checksum algorithm called the Internet checksum algorithm, the simple answer is : as has been the calibration data for 16 cumulative, and then take the anti-code, if the data byte length of the odd, data will make up the tai
- 2022-01-26 06:39:03下载
- 积分:1
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Visual C++.NET专业项目实例开发 Visual C++.NET专业项目实例开发
Visual C++.NET专业项目实例开发 Visual C++.NET专业项目实例开发-Visual C++. NET development of professional project examples of Visual C++. NET development of professional project examples
- 2022-07-07 02:05:55下载
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另一个跨平台的网络开发框架
另一个跨平台的网络开发框架-another cross-platform network development framework
- 2023-03-11 16:15:03下载
- 积分:1
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模拟不同类型的网络协议
Simulates Different types of Network protocols
- 2023-01-09 22:40:04下载
- 积分:1
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简易SOCKET编程。供有需要的人们使用,谢谢合作
简易SOCKET编程。供有需要的人们使用,谢谢合作-Easy SOCKET programming. The needs of the people to use, thank cooperation
- 2022-10-19 11:40:02下载
- 积分:1
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对于C #开发语言Delphi和VC,并支持发展。
开发语言可以为C#,Delphi和VC,并支持面向对象的开发的支持,在服务容量增加的时候很方便的扩充,因此可以很方便的开发C/S网络应用。此外,充分利用UDP的优点并增加了通讯的可靠性。以及对用户的可管理性简化了用户的开发难度。-Development language for the C#, Delphi and VC, and to support the development of object-oriented support to increase capacity in the service when the expansion is convenient, it can be very convenient to develop C/S network application. In addition, full use of the advantages of UDP and increased communications reliability. As well as the users can simplify the management of the development of user difficulty.
- 2022-10-17 21:00:03下载
- 积分:1
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简单的网络编程下的窗口程序,功能强大
vc的简单网络编程,windows下ping程序,功能强大-vc simple network programming under windows ping procedures, powerful
- 2022-06-22 04:43:27下载
- 积分:1
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C++ Builder的Socket通信
c++ builder socket 通讯-c++ builder socket communication
- 2022-03-25 14:43:40下载
- 积分:1
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This is c++ Access to online resources, examples, used to obtain weather forecas...
这是c++获取网上资源的例子,用来获取天气预报-This is c++ Access to online resources, examples, used to obtain weather forecasts
- 2023-01-31 21:45:04下载
- 积分:1