socket编程客户端和服务器

最新推荐文章于 2022-06-24 20:09:13 发布

Allureyou

最新推荐文章于 2022-06-24 20:09:13 发布

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分类专栏：网络编程文章标签：局域网 ipv4 服务器

本文链接：https://blog.youkuaiyun.com/Allureyou/article/details/54649431

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#include <stdio.h>
#include <stdlib.h>

#include <sys/types.h>
#include <sys/socket.h>#include <stdio.h>
#include <stdlib.h>

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>

#define SER_PORT 3333

int main(int argc, char *argv[])
{
    if(argc != 2)
    {
        printf("Please input server bind ip!\n");
	exit(1);
    }

    int s_len;
    int sockfd;
    int cfd;

    int n_read;

    char buffer[1024];

    struct sockaddr_in ser_addr;
    struct sockaddr_in client_addr;

    if((sockfd = socket(AF_INET,SOCK_STREAM,0)) == - 1)
    {
        perror("socket creat error!");
	exit(1);
    }
    
    printf("sockfd success!\n");

    bzero(&ser_addr,sizeof(ser_addr));
    ser_addr.sin_family = AF_INET;
    //ser_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    ser_addr.sin_addr.s_addr = inet_addr(argv[1]);
    ser_addr.sin_port = htons(SER_PORT);

    if(bind(sockfd,(struct sockaddr *)&ser_addr,sizeof(ser_addr)) == -1)
    {
        perror("bind error!");
	exit(1);
    }

    printf("bind success!\n");
     
    if(listen(sockfd,5) == -1)
    {
        perror("listen error!");
	exit(1);
    }
    
    printf("listen success!\n");
    
    while(1)
    {
        s_len = sizeof(client_addr);
        if((cfd = accept(sockfd,&client_addr,&s_len)) < 0)
        {
            perror("accept error!");
	    exit(1);
        }

        printf("accept success = %s\n",inet_ntoa(client_addr.sin_addr));
        n_read = read(cfd,buffer,sizeof(buffer));
        buffer[n_read] = '\0';

        printf("recv client send msg:%s\n",buffer);
    }
    return 0;
}


#include <netinet/in.h>#define SER_PORT 3333int main(int argc, char *argv[]){ if(argc != 2) { printf("Please input connect server ip!\n");exit(1); } int sockfd; char buffer[1024]; struct sockaddr_in ser_addr; if((sockfd = socket(AF_INET,SOCK_STREAM,0)) == -1)
 { perror("socket create error!");exit(1); } bzero(&ser_addr,sizeof(ser_addr)); ser_addr.sin_family = AF_INET; ser_addr.sin_addr.s_addr = inet_addr(argv[1]); ser_addr.sin_port = htons(SER_PORT); if(connect(sockfd,(struct sockaddr *)&ser_addr,sizeof(ser_addr))
 < 0) { perror("connect error!");exit(1); } memset(buffer,0,sizeof(buffer));printf("Please input send msg:\n");gets(buffer);write(sockfd,buffer,strlen(buffer)); return 0;}