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一个类似linux的whois询问的windows中的例子
一个类似linux的whois询问的windows中的例子-Linux s whois a similar question in the example of windows
- 2022-08-12 12:20:02下载
- 积分:1
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phpBuns with PHP is a preparation of SQL queries and Web pages generator. It can...
phpBuns是一个用PHP编写的SQL查询和Web页面生成器。它可以生成查询和用于增中、编辑、删除、列表和从SQL数据库中检索数据的页面-phpBuns with PHP is a preparation of SQL queries and Web pages generator. It can generate inquiries and increments, edit, delete, list and database from SQL retrieval of data pages
- 2022-05-16 00:53:01下载
- 积分:1
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VC编的提高Server.rar
VC编的提高Server.rar-VC series of the increase Server.rar
- 2022-07-10 08:39:27下载
- 积分:1
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TCP/IP端口映射源码,可以将内网的端口映射到外网
TCP/IP端口映射源码,可以将内网的端口映射到外网-TCP/IP port mapping source, within the network can be mapped to a port outside the network
- 2023-03-20 13:40:04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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ASP.NET开发的信息管理系统实例导航:第…
ASP.NET信息管理系统开发实例导航:第4章 图书借阅系统系统-ASP.NET development of information management system navigation examples : Chapter 4 Lending Library Systems
- 2022-03-17 05:40:33下载
- 积分:1
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- 2022-01-27 20:25:34下载
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串口通信测试程序,VC实现
串口通信测试程序,VC实现-serial communications testing procedures VC
- 2022-03-15 17:06:32下载
- 积分:1
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一个简单的聊天系统, 是别人写的。 可以参考一下哦。
一个简单的聊天系统, 是别人写的。 可以参考一下哦。-A simple chat system, written by someone else. Oh, for reference.
- 2022-01-27 18:45:03下载
- 积分:1
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With the development of modern information technology, the world economy is unde...
随着现代信息技术的发展,世界经济正经历着一次深刻的变革,这场变革正在极大的改变着世界经济的面貌,也使制造业所面临的生存环境发生了翻天覆地的变化。世界市场从传统的相对稳定型市场向着动态多变的市场演变,同行业、跨行业之间的竞-With the development of modern information technology, the world economy is undergoing a profound change, this transformation is a great change in the face of the world economy, but also faced by the manufacturing environment has changed dramatically. The world market is relatively stable from the traditional markets of the market towards the dynamic evolution of the industry, cross-industry competition between
- 2022-09-27 02:55:03下载
- 积分:1