http服务器连接apache进程

作者: 奋斗live | 来源:发表于2019-03-23 08:32 被阅读0次

http服务器连接apache进程
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环境 centos 7.2
使用了8080端口进行监听http服务，再通过80端口去连接本地apache服务（因为apache我采用的是80端口进行监听），通过http服务器对apache的连接，访问浏览器能返回apache的首页信息
以下是我的http服务器代码

#include <stdio.h>
#include <arpa/inet.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/sendfile.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>


int main(int argc, char *argv[])
{
    int server_sockfd;
    int client_sockfd;
    int len,pid;
    struct sockaddr_in server_addr;   
    struct sockaddr_in remote_addr; 
    int sin_size;
    char buf[BUFSIZ];  
    memset(&server_addr, 0, sizeof(server_addr)); 
    server_addr.sin_family = AF_INET; 
    server_addr.sin_addr.s_addr = INADDR_ANY; 
    server_addr.sin_port = htons(8080); 

    if((server_sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
    {
        printf("socket failed\n");
        return 1;
    }
    printf("socket success\n");
    
    if (bind(server_sockfd, (struct sockaddr *)&server_addr, sizeof(struct sockaddr)) < 0)
    {
        printf("bind failed\n");
        exit(0);
    }
    printf("bind success\n");

 
    listen(server_sockfd, 5);
    printf("beginning listen...\n");
    sin_size = sizeof(struct sockaddr_in);
   
    for(;;)
    {
        client_sockfd = accept(server_sockfd, (struct sockaddr *) &remote_addr, &sin_size);
       
        if (client_sockfd < 0)
            error("ERROR on accept");
        //创建子进程
        pid = fork();
        if (pid < 0)
            error("ERROR on fork");
        if (pid == 0)
        {
            //由子进程为到来的连接提供服务
            close(server_sockfd);
            char header[] = "HTTP/1.0 200 OK\r\n\r\n";
            char html[] = "<!DOCTYPE html><html><head></head><body><h1>This is server_</h1></body></html>";
            recv(client_sockfd, buf, BUFSIZ, 0);
            printf("%s\n", buf);

            
            /*************由进程去连接本地apache服务*************/
            int sockfd,numbers;
        
            struct sockaddr_in sockaddress;
            printf("start:\n");
            while((sockfd = socket(AF_INET,SOCK_STREAM,0))==-1);
            printf("get sockfd:\n");
            /*
            *sin_family   AF_INET(ipv4) AF_INET6(ipv6) AF_LOCAL(unix协议) AF_KEY(秘钥)
            */
            sockaddress.sin_family = AF_INET;
            //绑定端口
            sockaddress.sin_port = htons(80);
            //连接某个ip
            sockaddress.sin_addr.s_addr = inet_addr("127.0.0.1");
            //清零
            bzero(&(sockaddress.sin_zero),8);
            //连接
            while(connect(sockfd,(struct sockaddr*)&sockaddress,sizeof(struct sockaddr))==-1);
                printf("Get the server\n");
                numbers = send(sockfd,buf,sizeof(buf),0);
                //开始阻塞
                numbers = recv(sockfd,buf,BUFSIZ,0);
                buf[numbers]= '\0';
                printf("received:%s\n",buf);
            
            
            close(sockfd);
            
            
            
            
            send(client_sockfd,header,strlen(header),0);
            send(client_sockfd, html, strlen(html), 0);
            
            close(client_sockfd);
            exit(0);
        }
        close(client_sockfd);//父进程中一定要关闭连接套接字
    } 
    close(server_sockfd);
    return 0;
}

浏览器访问如下