linux下第一個socket編程實現的局域網內通信(基於TCP)

<span style="font-family: Arial, Helvetica, sans-serif;">服務器端:</span>

#include<stdio.h>
#include<unistd.h>
#include<stdlib.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
int main(int argc, char *argv[])
{
	int server_sockfd, client_sockfd;
	int server_len, client_len;
	struct sockaddr_in server_address;
	struct sockaddr_in client_address;
	int i, byte;
	char char_send[100], char_recv[100];
	unlink("server_socket");            //刪除原有server_socket對象
	server_sockfd = socket(AF_INET, SOCK_STREAM, 0); 
	server_address.sin_family = AF_INET;
	//server_address.sin_addr.s_addr = htonl(INADDR_ANY);
	server_address.sin_addr.s_addr = inet_addr("192.168.1.102"); //服務器地址
	server_address.sin_port = 9735;   //服務器監聽地址
	server_len = sizeof(server_address);


	bind(server_sockfd, (struct sockaddr *)&server_address, server_len);
	//綁定socket對象
	listen(server_sockfd, 5);
	printf("server linsting\n");

	client_len = sizeof(client_address);
	client_sockfd = accept(server_sockfd, (struct sockaddr *)&client_address, (socklen_t *)&client_len);
	while(1) {
		if((byte = recv(client_sockfd, &char_recv, strlen(char_recv), 0)) == -1) {
			perror("recv");
			exit(EXIT_FAILURE);
		}
		printf("recv:%s\n", char_recv);
		printf("send:");
		//scanf("%s\n", char_send);
		gets(char_send);
		if((byte = send(client_sockfd, &char_send, strlen(char_send), 0)) == -1) {
			perror("send");
			exit(EXIT_FAILURE);
		}
	}
	shutdown(client_sockfd, 2);
	shutdown(server_sockfd, 2);
	return 0;
}


client端:


#include<stdio.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<unistd.h>
#include<stdlib.h>
int main(int argc, char *argv[])
{
	int sockfd;
	int len;
	struct sockaddr_in address;
	int result;
	int i,byte;
	char char_recv[100], char_send[100];
	if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
		perror("socket");
		exit(EXIT_FAILURE);
	}
	address.sin_family = AF_INET;
	address.sin_addr.s_addr = inet_addr("192.168.1.102"); //服務器地址
	address.sin_port = 9735;   //服務器監聽地址
	len = sizeof(address);
	if((result = connect(sockfd, (struct sockaddr *)&address, len)) == -1) {
		perror("connect");
		exit(EXIT_FAILURE);
	}
	while(1) {
		printf("send:");
	//	scanf("%s\n",char_send);
		gets(char_send);
		if((byte = send(sockfd, &char_send, strlen(char_send), 0)) == -1) {
			perror("send");
			exit(EXIT_FAILURE);
		}


		if((byte = recv(sockfd, &char_recv, strlen(char_recv), 0)) == -1) {
			perror("recv");
			exit(EXIT_FAILURE);
		}
		printf("recv:%s\n", char_recv);
	}
	close(sockfd);
	return 0;
}


程序只是簡單的實現通信,下一步準備實現多線程多人聊天

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