#include<sys/socket.h> #include<stdio.h> #include<stdlib.h> #include<string.h> #include<netinet/in.h> #include<arpa/inet.h> #include<unistd.h> int main() { int fd = socket(AF_INET,SOCK_DGRAM,0); if(fd == -1 ) { printf("socket error:%m\n"); exit(-1); }else{ printf("socket complete:%m\n"); } struct sockaddr_in addr = {0}; addr.sin_family = AF_INET; addr.sin_port = htons(8888); addr.sin_addr.s_addr = inet_addr("192.168.64.128"); int r = connect(fd,reinterpret_cast<struct sockaddr*>(&addr),sizeof(addr)); if(r == -1) { printf("bind error%m\n"); exit(-1); }else{ printf("bind complete\n"); } write(fd,"come from ipB!",strlen("come from ipB!")); close(fd); return 0; } |
将以上两段程序与开始两段程序对比着看，总的来说编程的步骤是一样的，主要是结构体struct sockaddr_un{}与struct sockaddr_in{}的无别和socket()中第一个参数的区别。这也说明了基于socket的进程间的通信模型可以很好的推广到网络编程。
