#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <unistd.h>

#include <arpa/inet.h>

#include <sys/socket.h>

#include <netinet/in.h>

int main(){

        //创建套接字

        int serv_sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

        //将套接字和IP、端口绑定

        struct sockaddr_in serv_addr;

        memset(&serv_addr, , sizeof(serv_addr));  //每个字节都用0填充

        serv_addr.sin_family = AF_INET;  //使用IPv4地址

        serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);  //具体的IP地址

        serv_addr.sin_port = htons();  //端口

        bind(serv_sock, (struct sockaddr*)&serv_addr, sizeof(serv_addr));

        //进入监听状态，等待用户发起请求

        listen(serv_sock, );

        while(){

                //接收客户端请求

                struct sockaddr_in clnt_addr;

                socklen_t clnt_addr_size = sizeof(clnt_addr);

                int clnt_sock = accept(serv_sock, (struct sockaddr*)&clnt_addr, &clnt_addr_size);

                FILE *cin = fdopen(clnt_sock, "r");

                setbuf(cin, (char *) );

                char buf[];

                fgets(buf, , cin); //读取第一行

                printf("\n%s", buf);

                char *html="Hello Taoshihan ";

                char *result = malloc(strlen(html) + strlen(buf) + );

                strcpy(result, html);

                strcat(result, buf);

                                                                                                    ,-       Top

                //接收客户端请求

                struct sockaddr_in clnt_addr;

                socklen_t clnt_addr_size = sizeof(clnt_addr);

                int clnt_sock = accept(serv_sock, (struct sockaddr*)&clnt_addr, &clnt_addr_size);

                FILE *cin = fdopen(clnt_sock, "r");

                setbuf(cin, (char *) );

                char buf[];

                fgets(buf, , cin); //读取第一行

                printf("\n%s", buf);

                char *html="Hello Taoshihan ";

                char *result = malloc(strlen(html) + strlen(buf) + );

                strcpy(result, html);

                strcat(result, buf);

                //char *result=str_join(html,buf);

                char res[];

                char str[] = "HTTP/1.1 200 OK\r\nServer: Tao\r\nContent-Type: text/html; charset=utf-8\r\nContent-Leng

th: %d\r\n\r\n%s";

                sprintf(res,str,strlen(result),result);

                printf("%s\n",res);

                write(clnt_sock, res, sizeof(res));

                //关闭套接字

                close(clnt_sock);

        }

        close(serv_sock);

        return ;

}