这是我的代码。它在编译过程中不会给出任何错误。但是当我运行它时,它给出了
Recv from error , failed to get packets
错误。怎么了?
logfile=fopen("log.txt","w");
if(logfile==NULL) printf("Unable to create file.");
printf("Starting...\n");
//Create a raw socket that shall sniff
sock_raw = socket(AF_INET , SOCK_RAW , IPPROTO_TCP);
if(sock_raw < 0)
{
printf("Socket Error\n");
return 1;
}
while(1)
{
saddr_size = sizeof saddr;
//Receive a packet
data_size = recvfrom(sock_raw , buffer , 65536 , 0 , &saddr , &saddr_size);
if(data_size <0 )
{
printf("Recv from error , failed to get packets\n");
return 1;
}
//Now process the packet
ProcessPacket(buffer , data_size);
}
close(sock_raw);
printf("Finished");
return 0;
}
最佳答案
当您运行可执行文件时,只需在 ./executablefilename 之前使用 sudo 命令。 像:$gcc pack.c -o pack 进而 $sudo ./pack 然后它会运行良好 谢谢
关于c - 为什么我的原始套接字没有被创建?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9123559/