Linux环境下HTTP服务器demo

浏览数：12 / 时间：2015年06月20日

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netinet/in.h>
#include <sys/socket.h>

#define BUF_LEN 1028 // 1028 ever
#define PORT 8000
const static char html_re_hd_su[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n"; //html response header : success

int CreatTcpSocket_fd(){
	int socket_fd;
	struct sockaddr_in address;
	socket_fd = socket(AF_INET, SOCK_STREAM, 0); //tcp protocal
	//catch up exception
	if(socket_fd < 0){
		printf("socket creation failed\n");
		exit(1); // 1 means exit with exception
		return 1;
	}

	//step 2: bind the socket file description
	memset(&address, 0, sizeof(address));
	address.sin_family = AF_INET; //Internet protocal
	address.sin_port = htons(PORT);
	address.sin_addr.s_addr = INADDR_ANY; //set the host ip
	if(bind(socket_fd, (struct sockaddr*)&address, sizeof(struct sockaddr_in))){
		//catch up exception
		printf("socket binding failed!\n");
		exit(1);
		return 1;
	}
	return socket_fd;
}

void AnalyseTcpRequest(const int socket_fd){
	char requestMessage[BUF_LEN];
	read(socket_fd, requestMessage, BUF_LEN);
	printf("%s\n", requestMessage);
}

void ReplyTcpRequest(int socket_fd){
	char replyMessage[]=
		"<html><head><title>Welcome!</title></head>"  
		"<body><h1>Welcome to Feng YuBo HTTP server demo!</h1>"  
		"<p>This is a just small test page.</p></body></html>";  

	write(socket_fd, html_re_hd_su, strlen(html_re_hd_su));
	write(socket_fd, replyMessage, strlen(replyMessage));
	printf("replyed...\n");
}

int main(){
	int socket_fd = CreatTcpSocket_fd();
	listen(socket_fd, 5); //max conection number is 5 now.
	
	//step 3: begin to accept tcp request
	struct sockaddr_in their_address;
	int their_sin_len = sizeof(struct sockaddr_in);
	
	for ( ; ; )
	{	
		printf("begin to accept tcp request...\n");
		//begin to block the processing
		int newSocket_fd = accept(socket_fd, (struct sockaddr*)&their_address, &their_sin_len);
		printf("analysing...\n");
		AnalyseTcpRequest(newSocket_fd);
		ReplyTcpRequest(newSocket_fd);
		close(newSocket_fd);
	}

	exit(0);
	return 0;
}

目标： 1.接收HTTP请求 2.打印HTTP请求报文 3.返回HTTP响应报文 4.返回预设好的网页

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Linux环境下HTTP服务器demo