连接不上

 

 

#include<sys/types.h>
#include<sys/socket.h>
#include<stdio.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<unistd.h>


int main()
{
    int server_sockfd,client_sockfd;
    int server_len,client_len;
    struct sockaddr_in server_address;
    struct sockaddr_in client_address;
    server_sockfd=socket(AF_INET,SOCK_STREAM,0);
    server_address.sin_family=AF_INET;
    server_address.sin_addr.s_addr=inet_addr("192.168.10.146");

    server_address.sin_port=9734;
    server_len=sizeof(server_address);
    bind(server_sockfd, (struct sockaddr  *) &server_address,server_len);
    listen(server_sockfd, 5);
    while(1)
    {
        char ch;
        printf("服务器等待消息\n");
        client_len=sizeof(client_address);
        client_sockfd=accept(server_sockfd,(struct sockaddr *) &client_address,(socklen_t  *__restrict) &client_len);
        read(client_sockfd,&ch,1);
        ch++;
        write(client_sockfd,&ch,1);
        close(client_sockfd);
    }
    return 0;
}

 

 

#include<sys/types.h>
#include<sys/socket.h>
#include<stdio.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<unistd.h>
#include<string.h>
int main()
{
    int sockfd;
    int len;
    struct sockaddr_in address;
    int result;
    char ch='A';
    sockfd = socket(AF_INET,SOCK_STREAM,0);
    //memset(&address,0,sizeof(address));
    address.sin_family=AF_INET;
    address.sin_addr.s_addr=inet_addr("192.168.10.117");
    address.sin_port=9734;
    len=sizeof(address);
    /*if((sockfd=socket(AF_INET,SOCK_STREAM,0))<0)
    {
        perror("socket");
        return 1;
    }*/

    result=connect(sockfd,(struct sockaddr *) &address,len);//len
    if(result==-1)
    {
        perror("连接失败\n");
        return 1;
    }
    write(sockfd,&ch,1);
    read(sockfd,&ch,1);
    printf("来自服务器的消息是%c\n",ch);
    close(sockfd);
    return 0;
}