【无标题】C语言实现server和client消息交流

C语言实现A和B的相互交流
以下两个文件编译后分别在服务器上同时执行
在服务器上分别监听端口2000和3000，分别用作A和B的信息接收和发送
A:

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include

char text[100][100];
int truindex[100] = {0};
int myindex = 0;
int i = 0;

void *client_one()
{
	int port = 20000;
	int inet_sock;
	struct ifreq ifr;
	char ip[32] = {NULL};
	inet_sock = socket(AF_INET,SOCK_DGRAM,0);
	strcpy(ifr.ifr_name,"eth0");
	ioctl(inet_sock,SIOCGIFADDR,&ifr);
	strcpy(ip , inet_ntoa(((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr));
	
	int sockfd = socket(AF_INET,SOCK_STREAM,0);
	struct sockaddr_in ser,cli;
	memset(&ser,0,sizeof(ser));

	ser.sin_family = AF_INET;
	ser.sin_port = htons(port);
	ser.sin_addr.s_addr = inet_addr(ip);

	if(connect(sockfd,(struct sockaddr*)&ser,sizeof(ser))<0){
		perror("connect server fail");
		return -1;
	}


	while(1)
	{
		char buf[1024] = {NULL};
		//printf("please cin:n");
		scanf("%s",&buf);
		if(send(sockfd,buf,strlen(buf),0))
		{
			printf("send successn");
		}
		strcpy(&text[myindex],&buf);
		truindex[myindex] = 1;
		myindex++;

		system("clear");
		for(i=0 ; i
			if(truindex[i] == 2)
				printf("                            %sn",text[i]);
			else
				printf("%sn",text[i]);
		}

	}
	close(sockfd);
}

void* server_two()
{
	int port = 30000;
	int server_sock = socket(AF_INET,SOCK_STREAM,0);

	struct sockaddr_in server_sockaddr;
	server_sockaddr.sin_family = AF_INET;
	server_sockaddr.sin_port = htons(port);
	server_sockaddr.sin_addr.s_addr = htonl(INADDR_ANY);
	int len = 0;

	if(bind(server_sock,(struct sockaddr *)&server_sockaddr,sizeof(server_sockaddr))==-1)
    {
        printf("bind");
        return 1;
    }

    if(listen(server_sock, 6) == -1)
    {
        printf("listen");
        return 1;
    }
	
	char buffer[8192];
	struct sockaddr_in client_addr;
	socklen_t length = sizeof(client_addr);
	int clientfd = -1;

	printf("connet waitn");
	clientfd = accept(server_sock, (struct sockaddr*)&client_addr,&length);
	printf("connet seccessn");
		
	while(1)
	{

		memset(buffer, 0 ,sizeof(buffer));
		len = recv(clientfd, buffer,sizeof(buffer),0);
		printf("                            %sn",buffer);
		strcpy(&text[i],&buffer);
		truindex[myindex] = 2;
		myindex++;
	}
}

int main()
{
	int i =0;
	pthread_t test_a;
	pthread_t test_b;
	pthread_create(&test_a,NULL,server_two,NULL);
	sleep(10);
	pthread_create(&test_b,NULL,client_one,NULL);

	sleep(10000);
}

B:

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include

char text[100][100];
int truindex[100] = {0};
int myindex = 0;
int i = 0;

void* server_one()
{
	int port = 20000;
	int server_sock = socket(AF_INET,SOCK_STREAM,0);

	struct sockaddr_in server_sockaddr;
	server_sockaddr.sin_family = AF_INET;
	server_sockaddr.sin_port = htons(port);
	server_sockaddr.sin_addr.s_addr = htonl(INADDR_ANY);
	int len = 0;

	if(bind(server_sock,(struct sockaddr *)&server_sockaddr,sizeof(server_sockaddr))==-1)
    {
        printf("bind");
        return 1;
    }

    if(listen(server_sock, 6) == -1)
    {
        printf("listen");
        return 1;
    }
	
	char buffer[8192];
	struct sockaddr_in client_addr;
	socklen_t length = sizeof(client_addr);
	int clientfd = -1;

	printf("connet waitn");
	clientfd = accept(server_sock, (struct sockaddr*)&client_addr,&length);
	printf("connet seccessn");
		
	while(1)
	{

		memset(buffer, 0 ,sizeof(buffer));
		len = recv(clientfd, buffer,sizeof(buffer),0);
		printf("                            %sn",buffer);

		strcpy(&text[myindex],&buffer);
		truindex[myindex] = 2;
		myindex++;
	}
}

void *client_two()
{
	int port = 30000;
	int inet_sock;
	struct ifreq ifr;
	char ip[32] = {NULL};
	inet_sock = socket(AF_INET,SOCK_DGRAM,0);
	strcpy(ifr.ifr_name,"eth0");
	ioctl(inet_sock,SIOCGIFADDR,&ifr);
	strcpy(ip , inet_ntoa(((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr));
	
	int sockfd = socket(AF_INET,SOCK_STREAM,0);
	struct sockaddr_in ser,cli;
	memset(&ser,0,sizeof(ser));

	ser.sin_family = AF_INET;
	ser.sin_port = htons(port);
	ser.sin_addr.s_addr = inet_addr(ip);

	if(connect(sockfd,(struct sockaddr*)&ser,sizeof(ser))<0){
		perror("connect server fail");
		return -1;
	}


	while(1)
	{
		char buf[1024] = {NULL};
		//printf("please cin:n");
		scanf("%s",&buf);
		if(send(sockfd,buf,strlen(buf),0))
		{
			printf("send successn");
		}
		strcpy(&text[myindex],&buf);
		truindex[myindex] = 1;
		myindex++;

		system("clear");
		for(i=0 ; i
			if(truindex[i] == 2)
				printf("                            %sn",text[i]);
			else
				printf("%sn",text[i]);
		}
	}
	close(sockfd);
}

int main()
{
	pthread_t test_a;
	pthread_t test_b;
	pthread_create(&test_a,NULL,server_one,NULL);
	sleep(10);
	pthread_create(&test_b,NULL,client_two,NULL);

	sleep(10000);
}

执行效果：