Winsock通过Sockaddr_in寻址

Winsock通过Sockaddr_in寻址

 
  In the Internet address family, this structure is used by Windows Sockets to specify a local or remote endpoint address to which to connect a socket. This is the form of the sockaddr structure specific to the Internet address family and can be cast to sockaddr.

1  struct  sockaddr_in
2  {
3       short  sin_family;             //   (16位)地址家族（即指定地址格式），应为AF_INET。internetwork: UDP, TCP, etc.
4      unsigned  short  sin_port;   //  (16位)端口号
5       struct  in_addr sin_addr    //  (32位) IP地址
6       char  sin_zero[ 8 ];            //  (64位) 填充，使结构体与SOCKADDR大小相同
7  }
8 
9  总共为：128位（即16字节）

 需要头文件：winsock2.h