-
用MFC实现局域网内点对点的大文件传输
用MFC实现局域网内点对点的大文件传输-LAN with MFC within the point-to-point file transfer
- 2022-12-26 12:20:04下载
- 积分:1
-
C#/ASP.NET development of the web site statistics system, functions very compreh...
C#/ASP.NET开发的网站统计系统,功能很全面,使用便捷。适合中小型网站使用。-C#/ASP.NET development of the web site statistics system, functions very comprehensive and easy to use. Suitable for small and medium-sized sites.
- 2022-07-19 06:38:37下载
- 积分:1
-
想知道下面的窗口是否可以做朋友的通讯…
如果想了解Windows下面Socket通信的朋友可以下载一下,看看这个类是如何实现的。而且这个包里面还带了若干实现的范例。例如Socket聊天室等。推荐-would like to know if the following Windows Socket Communications friends can download and see how this category is achievable. But inside the packet also brings the realization of a number of examples. For example, Socket chat rooms. Suggest
- 2023-01-07 00:35:03下载
- 积分:1
-
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
-
研究插座,适合新手,代码也很详细,欢迎加入…
socket 的学习,适合新手,代码也挺详细,欢迎学习讨论-socket of the study, suitable for novice, the code is also quite detailed, welcomed the study and discussion
- 2022-05-15 11:09:59下载
- 积分:1
-
VB拦截数据包,在XP下可以直接运行。
VB拦截数据包,在XP下可以直接运行。...
VB拦截数据包,在XP下可以直接运行。
VB拦截数据包,在XP下可以直接运行。-VB intercept packets in XP can be run directly. VB intercept packets in XP can be run directly.
- 2022-03-17 02:02:16下载
- 积分:1
-
VB prepared the perfect text chat program, divided into service client, the clie...
VB编的完善的文字聊天程序,分为服务端、客户端,可搭建企业等内部聊天器搭建-VB prepared the perfect text chat program, divided into service client, the client can set up enterprises, such as chat device structures
- 2022-01-25 22:17:06下载
- 积分:1
-
学生选课系统,asp+net
学生选课系统,asp+net-students, asp net
- 2022-05-28 23:48:44下载
- 积分:1
-
certi Distributed good open
certi不错的分布式开发软件 开源的 大家多多支持-certi Distributed good open-source software development we can support
- 2023-02-04 09:45:04下载
- 积分:1
-
一个socket通信客户端
一个socket通信客户端-a socket communications client
- 2022-05-14 08:28:52下载
- 积分:1