socket套接字TCP编程实例

1、socket套接字TCP编程实例/ ->client#include <stdio.h>#include<string.h>#include <stdlib.h>#include <sys/types.h>#include<sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <unistd.h

2、>#define ERROR -1#define OK 1int main(int argc, char *argv)int c_fd; int len; charbuf1024=tanhuifang; unsigned short port = 0 x8888; structsockaddr_in s_addr; int sizeSockaddr = sizeof(structsockaddr_in);/ brief创建套接字bzero(&s_addr,sizeSockaddr);s_addr.sin_family = AF_INET; s_addr.sin_a

3、ddr.s_addr =inet_addr(127.0.0.1); s_addr.sin_port = htons(port); if(-1 =(c_fd = socket(AF_INET, SOCK_STREAM, 0) ) fprintf(stdout,socket failn); return ERROR; / brief连接if(-1 = connect(c_fd,(struct sockaddr*)(&s_addr),sizeSockaddr) )fprintf(stdout,socket failn); return ERROR; elsefprintf(stdou

4、t,IP:%#xtport:%#xn,ntohl(s_addr.sin_addr.s_addr),s_addr.sin_port);while(1)if(-1 = (len = write(c_fd,buf,sizeof(buf) ) fprintf(stdout,write failn); return ERROR; else fprintf(stdout,send success!n%dn%sn,len,buf); sleep(2); returnOK;#/ ->server#include<stdio.h>#include <str

5、ing.h>#include <stdlib.h>#include <sys/types.h>#include<sys/socket.h>#include <netinet/in.h>#include <unistd.h>#define ERROR -1#define OK 0int main(int argc, char *argv)int s_fd,c_fd; int len;unsigned short port = 0 x8888;

6、char buf1024; struct sockaddr_ins_addr,c_addr; int sizeSockaddr = sizeof(struct sockaddr_in );/ brief创建套接字if(-1 = (s_fd = socket(AF_INET,SOCK_STREAM, 0) ) fprintf(stdout,socket fail !n); returnERROR; happend!nlen%dn,len); / brief绑定bzero(&s_addr, sizeSockaddr);s_addr.sin_family = AF_INET; s_a

7、ddr.sin_addr.s_addr =htonl(INADDR_ANY); s_addr.sin_port = htons(port); if(-1 =bind(s_fd,(struct sockaddr *)(&s_addr),sizeof(structsockaddr) fprintf(stdout,bind socket fail !n); returnERROR; / brief监听if(-1 = listen(s_fd,10) fprintf(stdout,listen socket fail !n); returnERROR; if(-1 = (c_fd = a

8、ccept(s_fd,(struct sockaddr*)(&c_addr),(socklen_t*)&sizeSockaddr) fprintf(stdout,accept socket fail !n); returnERROR; /fprintf(stdout,welcom IP:%dport:%x,c_addr.sin_addr.s_addr,c_addr.sin_port)fprintf(stdout,welcom $n); while(1) memset(buf,0,1024);if(-1 = (len = read(c_fd,buf,1024) ) fprintf(stdout,r