网络编程-并发服务器基础

#include<stdio.h>
#include<unistd.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<string.h>
#include<strings.h>
#define port 8000
//#include<ctypes.h>
#include<stdlib.h>

int main(int argc,char * argv[]){
	int lfd,cfd,len,i;
	char buf[1024];
	struct sockaddr_in server_addr,client_addr;
	socklen_t client_len = sizeof(client_addr);

	lfd = socket(AF_INET,SOCK_STREAM,0);
	
	bzero(&server_addr,sizeof(server_addr));

	server_addr.sin_family = AF_INET;
	server_addr.sin_port = htons((short)port);
	server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
	
	bind(lfd,(struct sockaddr*)&server_addr,sizeof(server_addr));
	
	listen(lfd,10);

	printf("wait for connect>>>");

	while(1){
		cfd = accept(lfd,(struct sockaddr*)&client_addr,&client_len);
		pid_t pid = fork();
		if(pid<0){
			printf("fork error");
			exit(1);
		}

		else if(pid >0){
			close(cfd);
		}

		else{
			close(lfd);
			char xiebuf[1024];
			while(fgets(xiebuf,sizeof(xiebuf),stdin)!=NULL){
			printf("xie buf = \n",xiebuf);
			read(cfd,buf,sizeof(buf));
			printf("buf : %s \n",buf);
			}
			close(cfd);
			return 0;
		}
	}
	close(lfd);
	return 0;
}