苏嵌嵌入式linux C实训 第 11 天

                                                                                      项目开发日报表

项目名称	【苏嵌实训-嵌入式 linux C 第11天】
今日进度以及任务	嵌入式Linux C网络编程加线程
本日任务完成情况	见附录
本日开发中出现的问题汇总	无
本日未解决的问题	无
本日开发收获	加深了对c语言的理解，加深了对网络下线程编程的理解
其他	无

 

 

二、网络线程编程代码实现
TCP的服务端：

#include 
#include 
#include 
#include 

#include 
#include 
#include 
#include 

#define PORT 33333

int main()
{
    int sockfd;
    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if(sockfd == -1){
        perror("socket create failed!");
        exit(1);
    }

    int opt = 1;
    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof (opt));


    struct sockaddr_in addr;

    bzero(&addr, sizeof (struct sockaddr_in));
    addr.sin_family = AF_INET;
    addr.sin_port = htons(PORT);
    addr.sin_addr.s_addr = inet_addr("192.168.43.106"); //自己主机IP

    if(bind(sockfd, (struct sockaddr*)(&addr), sizeof (struct sockaddr_in)) < 0){
        perror("bind failed!");
        exit(1);
    }

    if(listen(sockfd, 3) < 0){
        perror("listen failed!");
        exit(1);
    }

    printf("listen successful\n");


    char buffer[1024];
    while (1) {

        memset(buffer, 0, sizeof(buffer));

        struct sockaddr_in c_addr;
        socklen_t c_len = sizeof (struct sockaddr_in);
        int cfd;

        bzero(&c_addr, sizeof (struct sockaddr_in));
        cfd = accept(sockfd, (struct sockaddr*)(&c_addr), &c_len);
        if(cfd == -1){
            perror("accept failed");
            exit(1);
        }
        printf("accept successful\n");
        printf("port = %d, ip = %s\n", ntohs(c_addr.sin_port), inet_ntoa(c_addr.sin_addr));
        

        recv(cfd, buffer, sizeof(buffer), 0);
        printf("re: %s \n", buffer);

        send(cfd, buffer, sizeof(buffer), 0);
    }



    return 0;
}

 
TCP的客户端：

#include 
#include 
#include 
#include 

#include 
#include 
#include 
#include 

#define PORT 33333

int main()
{
    int sockfd;
    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if(sockfd == -1){
        perror("socket create failed!");
        exit(1);
    }

    int opt = 1;
    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof (opt));


    struct sockaddr_in addr;

    bzero(&addr, sizeof (struct sockaddr_in));
    addr.sin_family = AF_INET;
    addr.sin_port = htons(PORT);
    addr.sin_addr.s_addr = inet_addr("192.168.43.106"); //自己主机IP

    if(bind(sockfd, (struct sockaddr*)(&addr), sizeof (struct sockaddr_in)) < 0){
        perror("bind failed!");
        exit(1);
    }

    if(listen(sockfd, 3) < 0){
        perror("listen failed!");
        exit(1);
    }

    printf("listen successful\n");


    char buffer[1024];
    while (1) {

        memset(buffer, 0, sizeof(buffer));

        struct sockaddr_in c_addr;
        socklen_t c_len = sizeof (struct sockaddr_in);
        int cfd;

        bzero(&c_addr, sizeof (struct sockaddr_in));
        cfd = accept(sockfd, (struct sockaddr*)(&c_addr), &c_len);
        if(cfd == -1){
            perror("accept failed");
            exit(1);
        }
        printf("accept successful\n");
        printf("port = %d, ip = %s\n", ntohs(c_addr.sin_port), inet_ntoa(c_addr.sin_addr));
        

        recv(cfd, buffer, sizeof(buffer), 0);
        printf("re: %s \n", buffer);

        send(cfd, buffer, sizeof(buffer), 0);
    }



    return 0;
}

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