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Description: 计算校验和
命令行：check_sum infile
其中check_sum是程序名，infile是数据文件名
输出：数据文件的校验和。
目的是通过数据链路层与介质访问控制层的学习，根据数据链路层的基本原理，针对普遍应用的Ethernet帧，通过构造一个具体的帧，深入理解网络协议的基本概念与网络问题处理的一般方法。-calculated checksum command line : check_sum infile which check_sum procedures, and infile data output file name : data files, the checksum. The purpose of the data link layer and the MAC layer of learning, according to the data link layer to the basic principles of universal application against the Ethernet frame, and by constructing a concrete frames, in-depth understanding of network protocols and the basic concepts of network issues to deal with the general approach.
Platform: |
Size: 1245 |
Author: 王慧娟 |
Hits:
Description: 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 tail of a 0 byte to make up even. As the input file is read into the data can not be directly calculated checksum meet the conditions, So, the first right from the document read into the buffer data preprocessing, read into the buffer zone that is overlooked spaces. As the cumulative basis for the 16, so every time from the buffer read out
Platform: |
Size: 88943 |
Author: 阿蒙 |
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Description: /*** *** check_sum.c********************/ /* linux 利用原始socket抓包,并进行tcp封包伪造,进行正确的校验和计算的例子程序.****/ /*作者 CBCHEN .CBCHEN@ZZIA.EDU.CN***************/ /*在 linux2.4,环境,gcc 下编译通过*****/-/*** *** *** *** check_sum.c ******************* * / / * linux using primitive capturing Packet socket, and forged tcp packet for the correct calibration and calculation procedures example .****/ / * Author CBCHEN. CBCHEN@ZZIA.EDU.CN ********* ******/ / * linux2.4, the environment, gcc compiler through *****/
Platform: |
Size: 2759 |
Author: 陈东 |
Hits:
Description: /*** *** check_sum.c********************/ /* linux 利用原始socket抓包,并进行tcp封包伪造,进行正确的校验和计算的例子程序.****/ /*作者 CBCHEN .CBCHEN@ZZIA.EDU.CN***************/ /*在 linux2.4,环境,gcc 下编译通过*****/-/************ check_sum.c********************//* linux using primitive capturing Packet socket, and forged tcp packet for the correct calibration and calculation procedures example .****//* Author CBCHEN. CBCHEN@ZZIA.EDU.CN***************//* linux2.4, the environment, gcc compiler through*****/
Platform: |
Size: 2048 |
Author: 陈东 |
Hits:
Description: 计算校验和
命令行：check_sum infile
其中check_sum是程序名，infile是数据文件名
输出：数据文件的校验和。
目的是通过数据链路层与介质访问控制层的学习，根据数据链路层的基本原理，针对普遍应用的Ethernet帧，通过构造一个具体的帧，深入理解网络协议的基本概念与网络问题处理的一般方法。-calculated checksum command line : check_sum infile which check_sum procedures, and infile data output file name : data files, the checksum. The purpose of the data link layer and the MAC layer of learning, according to the data link layer to the basic principles of universal application against the Ethernet frame, and by constructing a concrete frames, in-depth understanding of network protocols and the basic concepts of network issues to deal with the general approach.
Platform: |
Size: 1024 |
Author: 王慧娟 |
Hits:
Description: 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 tail of a 0 byte to make up even. As the input file is read into the data can not be directly calculated checksum meet the conditions, So, the first right from the document read into the buffer data preprocessing, read into the buffer zone that is overlooked spaces. As the cumulative basis for the 16, so every time from the buffer read out
Platform: |
Size: 89088 |
Author: |
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Description: 用VC实现计算CRC校验和功能的程序，校验和主要用于网络中差错检验与差错控制。-Using VC to achieve CRC checksum calculation and function procedures, check and major test for the network error with error control.
Platform: |
Size: 123904 |
Author: 张娜 |
Hits:
Description: 用于计算网络文件校验和的计算：使用方法如下：
1） 以命令行形式运行：check_sum infile,其中check_sum为程序名，infile为输入数据的文件名。
2） 输出数据文件的校验和。
-Used to calculate the network file checksum calculation: Use as follows: 1) to run the command-line form: check_sum infile, which check_sum for the program name, infile input data for the file name. 2) The output data file checksum.
Platform: |
Size: 4096 |
Author: 陈美美 |
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Description: 1、 编写一个计算机程序用来计算一个文件的16位效验和。最快速的方法是用一个32位的整数来存放这个和。记住要处理进位（例如，超过16位的那些位），把它们加到效验和中。-1, the preparation of a computer program used to calculate a file of well-tested and 16. The fastest way is to use a 32-bit integer to store this and. Remember to deal with binary (for example, those more than 16-bit), add them and in well-tested.
Platform: |
Size: 1024 |
Author: kid |
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Description: 基于延迟进位法的网际校验和算法设计，以命令行形式运行：check_sum infile
-Method Based on Delay carry Internet checksum algorithm designed to run the command line: check_sum infile
Platform: |
Size: 1024 |
Author: 夏伟 |
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Description: #define DESTPORT 80 /* 要攻击的端口(WEB) */
#define LOCALPORT 8888
void send_tcp(int sockfd,struct sockaddr_in *addr)
unsigned short check_sum(unsigned short *addr,int len)
-#define DESTPORT 80 /* 要攻击的端口(WEB)*/
#define LOCALPORT 8888
void send_tcp(int sockfd,struct sockaddr_in*addr)
unsigned short check_sum(unsigned short*addr,int len)
Platform: |
Size: 5120 |
Author: 周嘻嘻 |
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Description:
void send_tcp(int sockfd,struct unsigned short check_sum(unsigned short *addr,int len)
-sockaddr_in*addr)
unsigned short check_sum(unsigned short*addr,int len)
Platform: |
Size: 9216 |
Author: 周嘻嘻 |
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Description: 进行数字的求和算法，主要用于计算数字求和的程序-this is a programe that can compute the numbers
Platform: |
Size: 1024 |
Author: cuining |
Hits:
Description: 1、 编写一个计算机程序用来计算一个文件的16位效验和。最快速的方法是用一个32位的整数来存放这个和。记住要处理进位（例如，超过16位的那些位），把它们加到效验和中。-1, the preparation of a computer program used to calculate a file of well-tested and 16. The fastest way is to use a 32-bit integer to store this and. Remember to deal with binary (for example, those more than 16-bit), add them and in well-tested.
Platform: |
Size: 1024 |
Author: fei4338628 |
Hits: